1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
6111
6112
6113
6114
6115
6116
6117
6118
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
6135
6136
6137
6138
6139
6140
6141
6142
6143
6144
6145
6146
6147
6148
6149
6150
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6248
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
6265
6266
6267
6268
6269
6270
6271
6272
6273
6274
6275
6276
6277
6278
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
6292
6293
6294
6295
6296
6297
6298
6299
6300
6301
6302
6303
6304
6305
6306
6307
6308
6309
6310
6311
6312
6313
6314
6315
6316
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
6327
6328
6329
6330
6331
6332
6333
6334
6335
6336
6337
6338
6339
6340
6341
6342
6343
6344
6345
6346
6347
6348
6349
6350
6351
6352
6353
6354
6355
6356
6357
6358
6359
6360
6361
6362
6363
6364
6365
6366
6367
6368
6369
6370
6371
6372
6373
6374
6375
6376
6377
6378
6379
6380
6381
6382
6383
6384
6385
6386
6387
6388
6389
6390
6391
6392
6393
6394
6395
6396
6397
6398
6399
6400
6401
6402
6403
6404
6405
6406
6407
6408
6409
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
6423
6424
6425
6426
6427
6428
6429
6430
6431
6432
6433
6434
6435
6436
6437
6438
6439
6440
6441
6442
6443
6444
6445
6446
6447
6448
6449
6450
6451
6452
6453
6454
6455
6456
6457
6458
6459
6460
6461
6462
6463
6464
6465
6466
6467
6468
6469
6470
6471
6472
6473
6474
6475
6476
6477
6478
6479
6480
6481
6482
6483
6484
6485
6486
6487
6488
6489
6490
6491
6492
6493
6494
6495
6496
6497
6498
6499
6500
6501
6502
6503
6504
6505
6506
6507
6508
6509
6510
6511
6512
6513
6514
6515
6516
6517
6518
6519
6520
6521
6522
6523
6524
6525
6526
6527
6528
6529
6530
6531
6532
6533
6534
6535
6536
6537
6538
6539
6540
6541
6542
6543
6544
6545
6546
6547
6548
6549
6550
6551
6552
6553
6554
6555
6556
6557
6558
6559
6560
6561
6562
6563
6564
6565
6566
6567
6568
6569
6570
6571
6572
6573
6574
6575
6576
6577
6578
6579
6580
6581
6582
6583
6584
6585
6586
6587
6588
6589
6590
6591
6592
6593
6594
6595
6596
6597
6598
6599
6600
6601
6602
6603
6604
6605
6606
6607
6608
6609
6610
6611
6612
6613
6614
6615
6616
6617
6618
6619
6620
6621
6622
6623
6624
6625
6626
6627
6628
6629
6630
6631
6632
6633
6634
6635
6636
6637
6638
6639
6640
6641
6642
6643
6644
6645
6646
6647
6648
6649
6650
6651
6652
6653
6654
6655
6656
6657
6658
6659
6660
6661
6662
6663
6664
6665
6666
6667
6668
6669
6670
6671
6672
6673
6674
6675
6676
6677
6678
6679
6680
6681
6682
6683
6684
6685
6686
6687
6688
6689
6690
6691
6692
6693
6694
6695
6696
6697
6698
6699
6700
6701
6702
6703
6704
6705
6706
6707
6708
6709
6710
6711
6712
6713
6714
6715
6716
6717
6718
6719
6720
6721
6722
6723
6724
6725
6726
6727
6728
6729
6730
6731
6732
6733
6734
6735
6736
6737
6738
6739
6740
6741
6742
6743
6744
6745
6746
6747
6748
6749
6750
6751
6752
6753
6754
6755
6756
6757
6758
6759
6760
6761
6762
6763
6764
6765
6766
6767
6768
6769
6770
6771
6772
6773
6774
6775
6776
6777
6778
6779
6780
6781
6782
6783
6784
6785
6786
6787
6788
6789
6790
6791
6792
6793
6794
6795
6796
6797
6798
6799
6800
6801
6802
6803
6804
6805
6806
6807
6808
6809
6810
6811
6812
6813
6814
6815
6816
6817
6818
6819
6820
6821
6822
6823
6824
6825
6826
6827
6828
6829
6830
6831
6832
6833
6834
6835
6836
6837
6838
6839
6840
6841
6842
6843
6844
6845
6846
6847
6848
6849
6850
6851
6852
6853
6854
6855
6856
6857
6858
6859
6860
6861
6862
6863
6864
6865
6866
6867
6868
6869
6870
6871
6872
6873
6874
6875
6876
6877
6878
6879
6880
6881
6882
6883
6884
6885
6886
6887
6888
6889
6890
6891
6892
6893
6894
6895
6896
6897
6898
6899
6900
6901
6902
6903
6904
6905
6906
6907
6908
6909
6910
6911
6912
6913
6914
6915
6916
6917
6918
6919
6920
6921
6922
6923
6924
6925
6926
6927
6928
6929
6930
6931
6932
6933
6934
6935
6936
6937
6938
6939
6940
6941
6942
6943
6944
6945
6946
6947
6948
6949
6950
6951
6952
6953
6954
6955
6956
6957
6958
6959
6960
6961
6962
6963
6964
6965
6966
6967
6968
6969
6970
6971
6972
6973
6974
6975
6976
6977
6978
6979
6980
6981
6982
6983
6984
6985
6986
6987
6988
6989
6990
6991
6992
6993
6994
6995
6996
6997
6998
6999
7000
7001
7002
7003
7004
7005
7006
7007
7008
7009
7010
7011
7012
7013
7014
7015
7016
7017
7018
7019
7020
7021
7022
7023
7024
7025
7026
7027
7028
7029
7030
7031
7032
7033
7034
7035
7036
7037
7038
7039
7040
7041
7042
7043
7044
7045
7046
7047
7048
7049
7050
7051
7052
7053
7054
7055
7056
7057
7058
7059
7060
7061
7062
7063
7064
7065
7066
7067
7068
7069
7070
7071
7072
7073
7074
7075
7076
7077
7078
7079
7080
7081
7082
7083
7084
7085
7086
7087
7088
7089
7090
7091
7092
7093
7094
7095
7096
7097
7098
7099
7100
7101
7102
7103
7104
7105
7106
7107
7108
7109
7110
7111
7112
7113
7114
7115
7116
7117
7118
7119
7120
7121
7122
7123
7124
7125
7126
7127
7128
7129
7130
7131
7132
7133
7134
7135
7136
7137
7138
7139
7140
7141
7142
7143
7144
7145
7146
7147
7148
7149
7150
7151
7152
7153
7154
7155
7156
7157
7158
7159
7160
7161
7162
7163
7164
7165
7166
7167
7168
7169
7170
7171
7172
7173
7174
7175
7176
7177
7178
7179
7180
7181
7182
7183
7184
7185
7186
7187
7188
7189
7190
7191
7192
7193
7194
7195
7196
7197
7198
7199
7200
7201
7202
7203
7204
7205
7206
7207
7208
7209
7210
7211
7212
7213
7214
7215
7216
7217
7218
7219
7220
7221
7222
7223
7224
7225
7226
7227
7228
7229
7230
7231
7232
7233
7234
7235
7236
7237
7238
7239
7240
7241
7242
7243
7244
7245
7246
7247
7248
7249
7250
7251
7252
7253
7254
7255
7256
7257
7258
7259
7260
7261
7262
7263
7264
7265
7266
7267
7268
7269
7270
7271
7272
7273
7274
7275
7276
7277
7278
7279
7280
7281
7282
7283
7284
7285
7286
7287
7288
7289
7290
7291
7292
7293
7294
7295
7296
7297
7298
7299
7300
7301
7302
7303
7304
7305
7306
7307
7308
7309
7310
7311
7312
7313
7314
7315
7316
7317
7318
7319
7320
7321
7322
7323
7324
7325
7326
7327
7328
7329
7330
7331
7332
7333
7334
7335
7336
7337
7338
7339
7340
7341
7342
7343
7344
7345
7346
7347
7348
7349
7350
7351
7352
7353
7354
7355
7356
7357
7358
7359
7360
7361
7362
7363
7364
7365
7366
7367
7368
7369
7370
7371
7372
7373
7374
7375
7376
7377
7378
7379
7380
7381
7382
7383
7384
7385
7386
7387
7388
7389
7390
7391
7392
7393
7394
7395
7396
7397
7398
7399
7400
7401
7402
7403
7404
7405
7406
7407
7408
7409
7410
7411
7412
7413
7414
7415
7416
7417
7418
7419
7420
7421
7422
7423
7424
7425
7426
7427
7428
7429
7430
7431
7432
7433
7434
7435
7436
7437
7438
7439
7440
7441
7442
7443
7444
7445
7446
7447
7448
7449
7450
7451
7452
7453
7454
7455
7456
7457
7458
7459
7460
7461
7462
7463
7464
7465
7466
7467
7468
7469
7470
7471
7472
7473
7474
7475
7476
7477
7478
7479
7480
7481
7482
7483
7484
7485
7486
7487
7488
7489
7490
7491
7492
7493
7494
7495
7496
7497
7498
7499
7500
7501
7502
7503
7504
7505
7506
7507
7508
7509
7510
7511
7512
7513
7514
7515
7516
7517
7518
7519
7520
7521
7522
7523
7524
7525
7526
7527
7528
7529
7530
7531
7532
7533
7534
7535
7536
7537
7538
7539
7540
7541
7542
7543
7544
7545
7546
7547
7548
7549
7550
7551
7552
7553
7554
7555
7556
7557
7558
7559
7560
7561
7562
7563
7564
7565
7566
7567
7568
7569
7570
7571
7572
7573
7574
7575
7576
7577
7578
7579
7580
7581
7582
7583
7584
7585
7586
7587
7588
7589
7590
7591
7592
7593
7594
7595
7596
7597
7598
7599
7600
7601
7602
7603
7604
7605
7606
7607
7608
7609
7610
7611
7612
7613
7614
7615
7616
7617
7618
7619
7620
7621
7622
7623
7624
7625
7626
7627
7628
7629
7630
7631
7632
7633
7634
7635
7636
7637
7638
7639
7640
7641
7642
7643
7644
7645
7646
7647
7648
7649
7650
7651
7652
7653
7654
7655
7656
7657
7658
7659
7660
7661
7662
7663
7664
7665
7666
7667
7668
7669
7670
7671
7672
7673
7674
7675
7676
7677
7678
7679
7680
7681
7682
7683
7684
7685
7686
7687
7688
7689
7690
7691
7692
7693
7694
7695
7696
7697
7698
7699
7700
7701
7702
7703
7704
7705
7706
7707
7708
7709
7710
7711
7712
7713
7714
7715
7716
7717
7718
7719
7720
7721
7722
7723
7724
7725
7726
7727
7728
7729
7730
7731
7732
7733
7734
7735
7736
7737
7738
7739
7740
7741
7742
7743
7744
7745
7746
7747
7748
7749
7750
7751
7752
7753
7754
7755
7756
7757
7758
7759
7760
7761
7762
7763
7764
7765
7766
7767
7768
7769
7770
7771
7772
7773
7774
7775
7776
7777
7778
7779
7780
7781
7782
7783
7784
7785
7786
7787
7788
7789
7790
7791
7792
7793
7794
7795
7796
7797
7798
7799
7800
7801
7802
7803
7804
7805
7806
7807
7808
7809
7810
7811
7812
7813
7814
7815
7816
7817
7818
7819
7820
7821
7822
7823
7824
7825
7826
7827
7828
7829
7830
7831
7832
7833
7834
7835
7836
7837
7838
7839
7840
7841
7842
7843
7844
7845
7846
7847
7848
7849
7850
7851
7852
7853
7854
7855
7856
7857
7858
7859
7860
7861
7862
7863
7864
7865
7866
7867
7868
7869
7870
7871
7872
7873
7874
7875
7876
7877
7878
7879
7880
7881
7882
7883
7884
7885
7886
7887
7888
7889
7890
7891
7892
7893
7894
7895
7896
7897
7898
7899
7900
7901
7902
7903
7904
7905
7906
7907
7908
7909
7910
7911
7912
7913
7914
7915
7916
7917
7918
7919
7920
7921
7922
7923
7924
7925
7926
7927
7928
7929
7930
7931
7932
7933
7934
7935
7936
7937
7938
7939
7940
7941
7942
7943
7944
7945
7946
7947
7948
7949
7950
7951
7952
7953
7954
7955
7956
7957
7958
7959
7960
7961
7962
7963
7964
7965
7966
7967
7968
7969
7970
7971
7972
7973
7974
7975
7976
7977
7978
7979
7980
7981
7982
7983
7984
7985
7986
7987
7988
7989
7990
7991
7992
7993
7994
7995
7996
7997
7998
7999
8000
8001
8002
8003
8004
8005
8006
8007
8008
8009
8010
8011
8012
8013
8014
8015
8016
8017
8018
8019
8020
8021
8022
8023
8024
8025
8026
8027
8028
8029
8030
8031
8032
8033
8034
8035
8036
8037
8038
8039
8040
8041
8042
8043
8044
8045
8046
8047
8048
8049
8050
8051
8052
8053
8054
8055
8056
8057
8058
8059
8060
8061
8062
8063
8064
8065
8066
8067
8068
8069
8070
8071
8072
8073
8074
8075
8076
8077
8078
8079
8080
8081
8082
8083
8084
8085
8086
8087
8088
8089
8090
8091
8092
8093
8094
8095
8096
8097
8098
8099
8100
8101
8102
8103
8104
8105
8106
8107
8108
8109
8110
8111
8112
8113
8114
8115
8116
8117
8118
8119
8120
8121
8122
8123
8124
8125
8126
8127
8128
8129
8130
8131
8132
8133
8134
8135
8136
8137
8138
8139
8140
8141
8142
8143
8144
8145
8146
8147
8148
8149
8150
8151
8152
8153
8154
8155
8156
8157
8158
8159
8160
8161
8162
8163
8164
8165
8166
8167
8168
8169
8170
8171
8172
8173
8174
8175
8176
8177
8178
8179
8180
8181
8182
8183
8184
8185
8186
8187
8188
8189
8190
8191
8192
8193
8194
8195
8196
8197
8198
8199
8200
8201
8202
8203
8204
8205
8206
8207
8208
8209
8210
8211
8212
8213
8214
8215
8216
8217
8218
8219
8220
8221
8222
8223
8224
8225
8226
8227
8228
8229
8230
8231
8232
8233
8234
8235
8236
8237
8238
8239
8240
8241
8242
8243
8244
8245
8246
8247
8248
8249
8250
8251
8252
8253
8254
8255
8256
8257
8258
8259
8260
8261
8262
8263
8264
8265
8266
8267
8268
8269
8270
8271
8272
8273
8274
8275
8276
8277
8278
8279
8280
8281
8282
8283
8284
8285
8286
8287
8288
8289
8290
8291
8292
8293
8294
8295
8296
8297
8298
8299
8300
8301
8302
8303
8304
8305
8306
8307
8308
8309
8310
8311
8312
8313
8314
8315
8316
8317
8318
8319
8320
8321
8322
8323
8324
8325
8326
8327
8328
8329
8330
8331
8332
8333
8334
8335
8336
8337
8338
8339
8340
8341
8342
8343
8344
8345
8346
8347
8348
8349
8350
8351
8352
8353
8354
8355
8356
8357
8358
8359
8360
8361
8362
8363
8364
8365
8366
8367
8368
8369
8370
8371
8372
8373
8374
8375
8376
8377
8378
8379
8380
8381
8382
8383
8384
8385
8386
8387
8388
8389
8390
8391
8392
8393
8394
8395
8396
8397
8398
8399
8400
8401
8402
8403
8404
8405
8406
8407
8408
8409
8410
8411
8412
8413
8414
8415
8416
8417
8418
8419
8420
8421
8422
8423
8424
8425
8426
8427
8428
8429
8430
8431
8432
8433
8434
8435
8436
8437
8438
8439
8440
8441
8442
8443
8444
8445
8446
8447
8448
8449
8450
8451
8452
8453
8454
8455
8456
8457
8458
8459
8460
8461
8462
8463
8464
8465
8466
8467
8468
8469
8470
8471
8472
8473
8474
8475
8476
8477
8478
8479
8480
8481
8482
8483
8484
8485
8486
8487
8488
8489
8490
8491
8492
8493
8494
8495
8496
8497
8498
8499
8500
8501
8502
8503
8504
8505
8506
8507
8508
8509
8510
8511
8512
8513
8514
8515
8516
8517
8518
8519
8520
8521
8522
8523
8524
8525
8526
8527
8528
8529
8530
8531
8532
8533
8534
8535
8536
8537
8538
8539
8540
8541
8542
8543
8544
8545
8546
8547
8548
8549
8550
8551
8552
8553
8554
8555
8556
8557
8558
8559
8560
8561
8562
8563
8564
8565
8566
8567
8568
8569
8570
8571
8572
8573
8574
8575
8576
8577
8578
8579
8580
8581
8582
8583
8584
8585
8586
8587
8588
8589
8590
8591
8592
8593
8594
8595
8596
8597
8598
8599
8600
8601
8602
8603
8604
8605
8606
8607
8608
8609
8610
8611
8612
8613
8614
8615
8616
8617
8618
8619
8620
8621
8622
8623
8624
8625
8626
8627
8628
8629
8630
8631
8632
8633
8634
8635
8636
8637
8638
8639
8640
8641
8642
8643
8644
8645
8646
8647
8648
8649
8650
8651
8652
8653
8654
8655
8656
8657
8658
8659
8660
8661
8662
8663
8664
8665
8666
8667
8668
8669
8670
8671
8672
8673
8674
8675
8676
8677
8678
8679
8680
8681
8682
8683
8684
8685
8686
8687
8688
8689
8690
8691
8692
8693
8694
8695
8696
8697
8698
8699
8700
8701
8702
8703
8704
8705
8706
8707
8708
8709
8710
8711
8712
8713
8714
8715
8716
8717
8718
8719
8720
8721
8722
8723
8724
8725
8726
8727
8728
8729
8730
8731
8732
8733
8734
8735
8736
8737
8738
8739
8740
8741
8742
8743
8744
8745
8746
8747
8748
8749
8750
8751
8752
8753
8754
8755
8756
8757
8758
8759
8760
8761
8762
8763
8764
8765
8766
8767
8768
8769
8770
8771
8772
8773
8774
8775
8776
8777
8778
8779
8780
8781
8782
8783
8784
8785
8786
8787
8788
8789
8790
8791
8792
8793
8794
8795
8796
8797
8798
8799
8800
8801
8802
8803
8804
8805
8806
8807
8808
8809
8810
8811
8812
8813
8814
8815
8816
8817
8818
8819
8820
8821
8822
8823
8824
8825
8826
8827
8828
8829
8830
8831
8832
8833
8834
8835
8836
8837
8838
8839
8840
8841
8842
8843
8844
8845
8846
8847
8848
8849
8850
8851
8852
8853
8854
8855
8856
8857
8858
8859
8860
8861
8862
8863
8864
8865
8866
8867
8868
8869
8870
8871
8872
8873
8874
8875
8876
8877
8878
8879
8880
8881
8882
8883
8884
8885
8886
8887
8888
8889
8890
8891
8892
8893
8894
8895
8896
8897
8898
8899
8900
8901
8902
8903
8904
8905
8906
8907
8908
8909
8910
8911
8912
8913
8914
8915
8916
8917
8918
8919
8920
8921
8922
8923
8924
8925
8926
8927
8928
8929
8930
8931
8932
8933
8934
8935
8936
8937
8938
8939
8940
8941
8942
8943
8944
8945
8946
8947
8948
8949
8950
8951
8952
8953
8954
8955
8956
8957
8958
8959
8960
8961
8962
8963
8964
8965
8966
8967
8968
8969
8970
8971
8972
8973
8974
8975
8976
8977
8978
8979
8980
8981
8982
8983
8984
8985
8986
8987
8988
8989
8990
8991
8992
8993
8994
8995
8996
8997
8998
8999
9000
9001
9002
9003
9004
9005
9006
9007
9008
9009
9010
9011
9012
9013
9014
9015
9016
9017
9018
9019
9020
9021
9022
9023
9024
9025
9026
9027
9028
9029
9030
9031
9032
9033
9034
9035
9036
9037
9038
9039
9040
9041
9042
9043
9044
9045
9046
9047
9048
9049
9050
9051
9052
9053
9054
9055
9056
9057
9058
9059
9060
9061
9062
9063
9064
9065
9066
9067
9068
9069
9070
9071
9072
9073
9074
9075
9076
9077
9078
9079
9080
9081
9082
9083
9084
9085
9086
9087
9088
9089
9090
9091
9092
9093
9094
9095
9096
9097
9098
9099
9100
9101
9102
9103
9104
9105
9106
9107
9108
9109
9110
9111
9112
9113
9114
9115
9116
9117
9118
9119
9120
9121
9122
9123
9124
9125
9126
9127
9128
9129
9130
9131
9132
9133
9134
9135
9136
9137
9138
9139
9140
9141
9142
9143
9144
9145
9146
9147
9148
9149
9150
9151
9152
9153
9154
9155
9156
9157
9158
9159
9160
9161
9162
9163
9164
9165
9166
9167
9168
9169
9170
9171
9172
9173
9174
9175
9176
9177
9178
9179
9180
9181
9182
9183
9184
9185
9186
9187
9188
9189
9190
9191
9192
9193
9194
9195
9196
9197
9198
9199
9200
9201
9202
9203
9204
9205
9206
9207
9208
9209
9210
9211
9212
9213
9214
9215
9216
9217
9218
9219
9220
9221
9222
9223
9224
9225
9226
9227
9228
9229
9230
9231
9232
9233
9234
9235
9236
9237
9238
9239
9240
9241
9242
9243
9244
9245
9246
9247
9248
9249
9250
9251
9252
9253
9254
9255
9256
9257
9258
9259
9260
9261
9262
9263
9264
9265
9266
9267
9268
9269
9270
9271
9272
9273
9274
9275
9276
9277
9278
9279
9280
9281
9282
9283
9284
9285
9286
9287
9288
9289
9290
9291
9292
9293
9294
9295
9296
9297
9298
9299
9300
9301
9302
9303
9304
9305
9306
9307
9308
9309
9310
9311
9312
9313
9314
9315
9316
9317
9318
9319
9320
9321
9322
9323
9324
9325
9326
9327
9328
9329
9330
9331
9332
9333
9334
9335
9336
9337
9338
9339
9340
9341
9342
9343
9344
9345
9346
9347
9348
9349
9350
9351
9352
9353
9354
9355
9356
9357
9358
9359
9360
9361
9362
9363
9364
9365
9366
9367
9368
9369
9370
9371
9372
9373
9374
9375
9376
9377
9378
9379
9380
9381
9382
9383
9384
9385
9386
9387
9388
9389
9390
9391
9392
9393
9394
9395
9396
9397
9398
9399
9400
9401
9402
9403
9404
9405
9406
9407
9408
9409
9410
9411
9412
9413
9414
9415
9416
9417
9418
9419
9420
9421
9422
9423
9424
9425
9426
9427
9428
9429
9430
9431
9432
9433
9434
9435
9436
9437
9438
9439
9440
9441
9442
9443
9444
9445
9446
9447
9448
9449
9450
9451
9452
9453
9454
9455
9456
9457
9458
9459
9460
9461
9462
9463
9464
9465
9466
9467
9468
9469
9470
9471
9472
9473
9474
9475
9476
9477
9478
9479
9480
9481
9482
9483
9484
9485
9486
9487
9488
9489
9490
9491
9492
9493
9494
9495
9496
9497
9498
9499
9500
9501
9502
9503
9504
9505
9506
9507
9508
9509
9510
9511
9512
9513
9514
9515
9516
9517
9518
9519
9520
9521
9522
9523
9524
9525
9526
9527
9528
9529
9530
9531
9532
9533
9534
9535
9536
9537
9538
9539
9540
9541
9542
9543
9544
9545
9546
9547
9548
9549
9550
9551
9552
9553
9554
9555
9556
9557
9558
9559
9560
9561
9562
9563
9564
9565
9566
9567
9568
9569
9570
9571
9572
9573
9574
9575
9576
9577
9578
9579
9580
9581
9582
9583
9584
9585
9586
9587
9588
9589
9590
9591
9592
9593
9594
9595
9596
9597
9598
9599
9600
9601
9602
9603
9604
9605
9606
9607
9608
9609
9610
9611
9612
9613
9614
9615
9616
9617
9618
9619
9620
9621
9622
9623
9624
9625
9626
9627
9628
9629
9630
9631
9632
9633
9634
9635
9636
9637
9638
9639
9640
9641
9642
9643
9644
9645
9646
9647
9648
9649
9650
9651
9652
9653
9654
9655
9656
9657
9658
9659
9660
9661
9662
9663
9664
9665
9666
9667
9668
9669
9670
9671
9672
9673
9674
9675
9676
9677
9678
9679
9680
9681
9682
9683
9684
9685
9686
9687
9688
9689
9690
9691
9692
9693
9694
9695
9696
9697
9698
9699
9700
9701
9702
9703
9704
9705
9706
9707
9708
9709
9710
9711
9712
9713
9714
9715
9716
9717
9718
9719
9720
9721
9722
9723
9724
9725
9726
9727
9728
9729
9730
9731
9732
9733
9734
9735
9736
9737
9738
9739
9740
9741
9742
9743
9744
9745
9746
9747
9748
9749
9750
9751
9752
9753
9754
9755
9756
9757
9758
9759
9760
9761
9762
9763
9764
9765
9766
9767
9768
9769
9770
9771
9772
9773
9774
9775
9776
9777
9778
9779
9780
9781
9782
9783
9784
9785
9786
9787
9788
9789
9790
9791
9792
9793
9794
9795
9796
9797
9798
9799
9800
9801
9802
9803
9804
9805
9806
9807
9808
9809
9810
9811
9812
9813
9814
9815
9816
9817
9818
9819
9820
9821
9822
9823
9824
9825
9826
9827
9828
9829
9830
9831
9832
9833
9834
9835
9836
9837
9838
9839
9840
9841
9842
9843
9844
9845
9846
9847
9848
9849
9850
9851
9852
9853
9854
9855
9856
9857
9858
9859
9860
9861
9862
9863
9864
9865
9866
9867
9868
9869
9870
9871
9872
9873
9874
9875
9876
9877
9878
9879
9880
9881
9882
9883
9884
9885
9886
9887
9888
9889
9890
9891
9892
9893
9894
9895
9896
9897
9898
9899
9900
9901
9902
9903
9904
9905
9906
9907
9908
9909
9910
9911
9912
9913
9914
9915
9916
9917
9918
9919
9920
9921
9922
9923
9924
9925
9926
9927
9928
9929
9930
9931
9932
9933
9934
9935
9936
9937
9938
9939
9940
9941
9942
9943
9944
9945
9946
9947
9948
9949
9950
9951
9952
9953
9954
9955
9956
9957
9958
9959
9960
9961
9962
9963
9964
9965
9966
9967
9968
9969
9970
9971
9972
9973
9974
9975
9976
9977
9978
9979
9980
9981
9982
9983
9984
9985
9986
9987
9988
9989
9990
9991
9992
9993
9994
9995
9996
9997
9998
9999
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
10013
10014
10015
10016
10017
10018
10019
10020
10021
10022
10023
10024
10025
10026
10027
10028
10029
10030
10031
10032
10033
10034
10035
10036
10037
10038
10039
10040
10041
10042
10043
10044
10045
10046
10047
10048
10049
10050
10051
10052
10053
10054
10055
10056
10057
10058
10059
10060
10061
10062
10063
10064
10065
10066
10067
10068
10069
10070
10071
10072
10073
10074
10075
10076
10077
10078
10079
10080
10081
10082
10083
10084
10085
10086
10087
10088
10089
10090
10091
10092
10093
10094
10095
10096
10097
10098
10099
10100
10101
10102
10103
10104
10105
10106
10107
10108
10109
10110
10111
10112
10113
10114
10115
10116
10117
10118
10119
10120
10121
10122
10123
10124
10125
10126
10127
10128
10129
10130
10131
10132
10133
10134
10135
10136
10137
10138
10139
10140
10141
10142
10143
10144
10145
10146
10147
10148
10149
10150
10151
10152
10153
10154
10155
10156
10157
10158
10159
10160
10161
10162
10163
10164
10165
10166
10167
10168
10169
10170
10171
10172
10173
10174
10175
10176
10177
10178
10179
10180
10181
10182
10183
10184
10185
10186
10187
10188
10189
10190
10191
10192
10193
10194
10195
10196
10197
10198
10199
10200
10201
10202
10203
10204
10205
10206
10207
10208
10209
10210
10211
10212
10213
10214
10215
10216
10217
10218
10219
10220
10221
10222
10223
10224
10225
10226
10227
10228
10229
10230
10231
10232
10233
10234
10235
10236
10237
10238
10239
10240
10241
10242
10243
10244
10245
10246
10247
10248
10249
10250
10251
10252
10253
10254
10255
10256
10257
10258
10259
10260
10261
10262
10263
10264
10265
10266
10267
10268
10269
10270
10271
10272
10273
10274
10275
10276
10277
10278
10279
10280
10281
10282
10283
10284
10285
10286
10287
10288
10289
10290
10291
10292
10293
10294
10295
10296
10297
10298
10299
10300
10301
10302
10303
10304
10305
10306
10307
10308
10309
10310
10311
10312
10313
10314
10315
10316
10317
10318
10319
10320
10321
10322
10323
10324
10325
10326
10327
10328
10329
10330
10331
10332
10333
10334
10335
10336
10337
10338
10339
10340
10341
10342
10343
10344
10345
10346
10347
10348
10349
10350
10351
10352
10353
10354
10355
10356
10357
10358
10359
10360
10361
10362
10363
10364
10365
10366
10367
10368
10369
10370
10371
10372
10373
10374
10375
10376
10377
10378
10379
10380
10381
10382
10383
10384
10385
10386
10387
10388
10389
10390
10391
10392
10393
10394
10395
10396
10397
10398
10399
10400
10401
10402
10403
10404
10405
10406
10407
10408
10409
10410
10411
10412
10413
10414
10415
10416
10417
10418
10419
10420
10421
10422
10423
10424
10425
10426
10427
10428
10429
10430
10431
10432
10433
10434
10435
10436
10437
10438
10439
10440
10441
10442
10443
10444
10445
10446
10447
10448
10449
10450
10451
10452
10453
10454
10455
10456
10457
10458
10459
10460
10461
10462
10463
10464
10465
10466
10467
10468
10469
10470
10471
10472
10473
10474
10475
10476
10477
10478
10479
10480
10481
10482
10483
10484
10485
10486
10487
10488
10489
10490
10491
10492
10493
10494
10495
10496
10497
10498
10499
10500
10501
10502
10503
10504
10505
10506
10507
10508
10509
10510
10511
10512
10513
10514
10515
10516
10517
10518
10519
10520
10521
10522
10523
10524
10525
10526
10527
10528
10529
10530
10531
10532
10533
10534
10535
10536
10537
10538
10539
10540
10541
10542
10543
10544
10545
10546
10547
10548
10549
10550
10551
10552
10553
10554
10555
10556
10557
10558
10559
10560
10561
10562
10563
10564
10565
10566
10567
10568
10569
10570
10571
10572
10573
10574
10575
10576
10577
10578
10579
10580
10581
10582
10583
10584
10585
10586
10587
10588
10589
10590
10591
10592
10593
10594
10595
10596
10597
10598
10599
10600
10601
10602
10603
10604
10605
10606
10607
10608
10609
10610
10611
10612
10613
10614
10615
10616
10617
10618
10619
10620
10621
10622
10623
10624
10625
10626
10627
10628
10629
10630
10631
10632
10633
10634
10635
10636
10637
10638
10639
10640
10641
10642
10643
10644
10645
10646
10647
10648
10649
10650
10651
10652
10653
10654
10655
10656
10657
10658
10659
10660
10661
10662
10663
10664
10665
10666
10667
10668
10669
10670
10671
10672
10673
10674
10675
10676
10677
10678
10679
10680
10681
10682
10683
10684
10685
10686
10687
10688
10689
10690
10691
10692
10693
10694
10695
10696
10697
10698
10699
10700
10701
10702
10703
10704
10705
10706
10707
10708
10709
10710
10711
10712
10713
10714
10715
10716
10717
10718
10719
10720
10721
10722
10723
10724
10725
10726
10727
10728
10729
10730
10731
10732
10733
10734
10735
10736
10737
10738
10739
10740
10741
10742
10743
10744
10745
10746
10747
10748
10749
10750
10751
10752
10753
10754
10755
10756
10757
10758
10759
10760
10761
10762
10763
10764
10765
10766
10767
10768
10769
10770
10771
10772
10773
10774
10775
10776
10777
10778
10779
10780
10781
10782
10783
10784
10785
10786
10787
10788
10789
10790
10791
10792
10793
10794
10795
10796
10797
10798
10799
10800
10801
10802
10803
10804
10805
10806
10807
10808
10809
10810
10811
10812
10813
10814
10815
10816
10817
10818
10819
10820
10821
10822
10823
10824
10825
10826
10827
10828
10829
10830
10831
10832
10833
10834
10835
10836
10837
10838
10839
10840
10841
10842
10843
10844
10845
10846
10847
10848
10849
10850
10851
10852
10853
10854
10855
10856
10857
10858
10859
10860
10861
10862
10863
10864
10865
10866
10867
10868
10869
10870
10871
10872
10873
10874
10875
10876
10877
10878
10879
10880
10881
10882
10883
10884
10885
10886
10887
10888
10889
10890
10891
10892
10893
10894
10895
10896
10897
10898
10899
10900
10901
10902
10903
10904
10905
10906
10907
10908
10909
10910
10911
10912
10913
10914
10915
10916
10917
10918
10919
10920
10921
10922
10923
10924
10925
10926
10927
10928
10929
10930
10931
10932
10933
10934
10935
10936
10937
10938
10939
10940
10941
10942
10943
10944
10945
10946
10947
10948
10949
10950
10951
10952
10953
10954
10955
10956
10957
10958
10959
10960
10961
10962
10963
10964
10965
10966
10967
10968
10969
10970
10971
10972
10973
10974
10975
10976
10977
10978
10979
10980
10981
10982
10983
10984
10985
10986
10987
10988
10989
10990
10991
10992
10993
10994
10995
10996
10997
10998
10999
11000
11001
11002
11003
11004
11005
11006
11007
11008
11009
11010
11011
11012
11013
11014
11015
11016
11017
11018
11019
11020
11021
11022
11023
11024
11025
11026
11027
11028
11029
11030
11031
11032
11033
11034
11035
11036
11037
11038
11039
11040
11041
11042
11043
11044
11045
11046
11047
11048
11049
11050
11051
11052
11053
11054
11055
11056
11057
11058
11059
11060
11061
11062
11063
11064
11065
11066
11067
11068
11069
11070
11071
11072
11073
11074
11075
11076
11077
11078
11079
11080
11081
11082
11083
11084
11085
11086
11087
11088
11089
11090
11091
11092
11093
11094
11095
11096
11097
11098
11099
11100
11101
11102
11103
11104
11105
11106
11107
11108
11109
11110
11111
11112
11113
11114
11115
11116
11117
11118
11119
11120
11121
11122
11123
11124
11125
11126
11127
11128
11129
11130
11131
11132
11133
11134
11135
11136
11137
11138
11139
11140
11141
11142
11143
11144
11145
11146
11147
11148
11149
11150
11151
11152
11153
11154
11155
11156
11157
11158
11159
11160
11161
11162
11163
11164
11165
11166
11167
11168
11169
11170
11171
11172
11173
11174
11175
11176
11177
11178
11179
11180
11181
11182
11183
11184
11185
11186
11187
11188
11189
11190
11191
11192
11193
11194
11195
11196
11197
11198
11199
11200
11201
11202
11203
11204
11205
11206
11207
11208
11209
11210
11211
11212
11213
11214
11215
11216
11217
11218
11219
11220
11221
11222
11223
11224
11225
11226
11227
11228
11229
11230
11231
11232
11233
11234
11235
11236
11237
11238
11239
11240
11241
11242
11243
11244
11245
11246
11247
11248
11249
11250
11251
11252
11253
11254
11255
11256
11257
11258
11259
11260
11261
11262
11263
11264
11265
11266
11267
11268
11269
11270
11271
11272
11273
11274
11275
11276
11277
11278
11279
11280
11281
11282
11283
11284
11285
11286
11287
11288
11289
11290
11291
11292
11293
11294
11295
11296
11297
11298
11299
11300
11301
11302
11303
11304
11305
11306
11307
11308
11309
11310
11311
11312
11313
11314
11315
11316
11317
11318
11319
11320
11321
11322
11323
11324
11325
11326
11327
11328
11329
11330
11331
11332
11333
11334
11335
11336
11337
11338
11339
11340
11341
11342
11343
11344
11345
11346
11347
11348
11349
11350
11351
11352
11353
11354
11355
11356
11357
11358
11359
11360
11361
11362
11363
11364
11365
11366
11367
11368
11369
11370
11371
11372
11373
11374
11375
11376
11377
11378
11379
11380
11381
11382
11383
11384
11385
11386
11387
11388
11389
11390
11391
11392
11393
11394
11395
11396
11397
11398
11399
11400
11401
11402
11403
11404
11405
11406
11407
11408
11409
11410
11411
11412
11413
11414
11415
11416
11417
11418
11419
11420
11421
11422
11423
11424
11425
11426
11427
11428
11429
11430
11431
11432
11433
11434
11435
11436
11437
11438
11439
11440
11441
11442
11443
11444
11445
11446
11447
11448
11449
11450
11451
11452
11453
11454
11455
11456
11457
11458
11459
11460
11461
11462
11463
11464
11465
11466
11467
11468
11469
11470
11471
11472
11473
11474
11475
11476
11477
11478
11479
11480
11481
11482
11483
11484
11485
11486
11487
11488
11489
11490
11491
11492
11493
11494
11495
11496
11497
11498
11499
11500
11501
11502
11503
11504
11505
11506
11507
11508
11509
11510
11511
11512
11513
11514
11515
11516
11517
11518
11519
11520
11521
11522
11523
11524
11525
11526
11527
11528
11529
11530
11531
11532
11533
11534
11535
11536
11537
11538
11539
11540
11541
11542
11543
11544
11545
11546
11547
11548
11549
11550
11551
11552
11553
11554
11555
11556
11557
11558
11559
11560
11561
11562
11563
11564
11565
11566
11567
11568
11569
11570
11571
11572
11573
11574
11575
11576
11577
11578
11579
11580
11581
11582
11583
11584
11585
11586
11587
11588
11589
11590
11591
11592
11593
11594
11595
11596
11597
11598
11599
11600
11601
11602
11603
11604
11605
11606
11607
11608
11609
11610
11611
11612
11613
11614
11615
11616
11617
11618
11619
11620
11621
11622
11623
11624
11625
11626
11627
11628
11629
11630
11631
11632
11633
11634
11635
11636
11637
11638
11639
11640
11641
11642
11643
11644
11645
11646
11647
11648
11649
11650
11651
11652
11653
11654
11655
11656
11657
11658
11659
11660
11661
11662
11663
11664
11665
11666
11667
11668
11669
11670
11671
11672
11673
11674
11675
11676
11677
11678
11679
11680
11681
11682
11683
11684
11685
11686
11687
11688
11689
11690
11691
11692
11693
11694
11695
11696
11697
11698
11699
11700
11701
11702
11703
11704
11705
11706
11707
11708
11709
11710
11711
11712
11713
11714
11715
11716
11717
11718
11719
11720
11721
11722
11723
11724
11725
11726
11727
11728
11729
11730
11731
11732
11733
11734
11735
11736
11737
11738
11739
11740
11741
11742
11743
11744
11745
11746
11747
11748
11749
11750
11751
11752
11753
11754
11755
11756
11757
11758
11759
11760
11761
11762
11763
11764
11765
11766
11767
11768
11769
11770
11771
11772
11773
11774
11775
11776
11777
11778
11779
11780
11781
11782
11783
11784
11785
11786
11787
11788
11789
11790
11791
11792
11793
11794
11795
11796
11797
11798
11799
11800
11801
11802
11803
11804
11805
11806
11807
11808
11809
11810
11811
11812
11813
11814
11815
11816
11817
11818
11819
11820
11821
11822
11823
11824
11825
11826
11827
11828
11829
11830
11831
11832
11833
11834
11835
11836
11837
11838
11839
11840
11841
11842
11843
11844
11845
11846
11847
11848
11849
11850
11851
11852
11853
11854
11855
11856
11857
11858
11859
11860
11861
11862
11863
11864
11865
11866
11867
11868
11869
11870
11871
11872
11873
11874
11875
11876
11877
11878
11879
11880
11881
11882
11883
11884
11885
11886
11887
11888
11889
11890
11891
11892
11893
11894
11895
11896
11897
11898
11899
11900
11901
11902
11903
11904
11905
11906
11907
11908
11909
11910
11911
11912
11913
11914
11915
11916
11917
11918
11919
11920
11921
11922
11923
11924
11925
11926
11927
11928
11929
11930
11931
11932
11933
11934
11935
11936
11937
11938
11939
11940
11941
11942
11943
11944
11945
11946
11947
11948
11949
11950
11951
11952
11953
11954
11955
11956
11957
11958
11959
11960
11961
11962
11963
11964
11965
11966
11967
11968
11969
11970
11971
11972
11973
11974
11975
11976
11977
11978
11979
11980
11981
11982
11983
11984
11985
11986
11987
11988
11989
11990
11991
11992
11993
11994
11995
11996
11997
11998
11999
12000
12001
12002
12003
12004
12005
12006
12007
12008
12009
12010
12011
12012
12013
12014
12015
12016
12017
12018
12019
12020
12021
12022
12023
12024
12025
12026
12027
12028
12029
12030
12031
12032
12033
12034
12035
12036
12037
12038
12039
12040
12041
12042
12043
12044
12045
12046
12047
12048
12049
12050
12051
12052
12053
12054
12055
12056
12057
12058
12059
12060
12061
12062
12063
12064
12065
12066
12067
12068
12069
12070
12071
12072
12073
12074
12075
12076
12077
12078
12079
12080
12081
12082
12083
12084
12085
12086
12087
12088
12089
12090
12091
12092
12093
12094
12095
12096
12097
12098
12099
12100
12101
12102
12103
12104
12105
12106
12107
12108
12109
12110
12111
12112
12113
12114
12115
12116
12117
12118
12119
12120
12121
12122
12123
12124
12125
12126
12127
12128
12129
12130
12131
12132
12133
12134
12135
12136
12137
12138
12139
12140
12141
12142
12143
12144
12145
12146
12147
12148
12149
12150
12151
12152
12153
12154
12155
12156
12157
12158
12159
12160
12161
12162
12163
12164
12165
12166
12167
12168
12169
12170
12171
12172
12173
12174
12175
12176
12177
12178
12179
12180
12181
12182
12183
12184
12185
12186
12187
12188
12189
12190
12191
12192
12193
12194
12195
12196
12197
12198
12199
12200
12201
12202
12203
12204
12205
12206
12207
12208
12209
12210
12211
12212
12213
12214
12215
12216
12217
12218
12219
12220
12221
12222
12223
12224
12225
12226
12227
12228
12229
12230
12231
12232
12233
12234
12235
12236
12237
12238
12239
12240
12241
12242
12243
12244
12245
12246
12247
12248
12249
12250
12251
12252
12253
12254
12255
12256
12257
12258
12259
12260
12261
12262
12263
12264
12265
12266
12267
12268
12269
12270
12271
12272
12273
12274
12275
12276
12277
12278
12279
12280
12281
12282
12283
12284
12285
12286
12287
12288
12289
12290
12291
12292
12293
12294
12295
12296
12297
12298
12299
12300
12301
12302
12303
12304
12305
12306
12307
12308
12309
12310
12311
12312
12313
12314
12315
12316
12317
12318
12319
12320
12321
12322
12323
12324
12325
12326
12327
12328
12329
12330
12331
12332
12333
12334
12335
12336
12337
12338
12339
12340
12341
12342
12343
12344
12345
12346
12347
12348
12349
12350
12351
12352
12353
12354
12355
12356
12357
12358
12359
12360
12361
12362
12363
12364
12365
12366
12367
12368
12369
12370
12371
12372
12373
12374
12375
12376
12377
12378
12379
12380
12381
12382
12383
12384
12385
12386
12387
12388
12389
12390
12391
12392
12393
12394
12395
12396
12397
12398
12399
12400
12401
12402
12403
12404
12405
12406
12407
12408
12409
12410
12411
12412
12413
12414
12415
12416
12417
12418
12419
12420
12421
12422
12423
12424
12425
12426
12427
12428
12429
12430
12431
12432
12433
12434
12435
12436
12437
12438
12439
12440
12441
12442
12443
12444
12445
12446
12447
12448
12449
12450
12451
12452
12453
12454
12455
12456
12457
12458
12459
12460
12461
12462
12463
12464
12465
12466
12467
12468
12469
12470
12471
12472
12473
12474
12475
12476
12477
12478
12479
12480
12481
12482
12483
12484
12485
12486
12487
12488
12489
12490
12491
12492
12493
12494
12495
12496
12497
12498
12499
12500
12501
12502
12503
12504
12505
12506
12507
12508
12509
12510
12511
12512
12513
12514
12515
12516
12517
12518
12519
12520
12521
12522
12523
12524
12525
12526
12527
12528
12529
12530
12531
12532
12533
12534
12535
12536
12537
12538
12539
12540
12541
12542
12543
12544
12545
12546
12547
12548
12549
12550
12551
12552
12553
12554
12555
12556
12557
12558
12559
12560
12561
12562
12563
12564
12565
12566
12567
12568
12569
12570
12571
12572
12573
12574
12575
12576
12577
12578
12579
12580
12581
12582
12583
12584
12585
12586
12587
12588
12589
12590
12591
12592
12593
12594
12595
12596
12597
12598
12599
12600
12601
12602
12603
12604
12605
12606
12607
12608
12609
12610
12611
12612
12613
12614
12615
12616
12617
12618
12619
12620
12621
12622
12623
12624
12625
12626
12627
12628
12629
12630
12631
12632
12633
12634
12635
12636
12637
12638
12639
12640
12641
12642
12643
12644
12645
12646
12647
12648
12649
12650
12651
12652
12653
12654
12655
12656
12657
12658
12659
12660
12661
12662
12663
12664
12665
12666
12667
12668
12669
12670
12671
12672
12673
12674
12675
12676
12677
12678
12679
12680
12681
12682
12683
12684
12685
12686
12687
12688
12689
12690
12691
12692
12693
12694
12695
12696
12697
12698
12699
12700
12701
12702
12703
12704
12705
12706
12707
12708
12709
12710
12711
12712
12713
12714
12715
12716
12717
12718
12719
12720
12721
12722
12723
12724
12725
12726
12727
12728
12729
12730
12731
12732
12733
12734
12735
12736
12737
12738
12739
12740
12741
12742
12743
12744
12745
12746
12747
12748
12749
12750
12751
12752
12753
12754
12755
12756
12757
12758
12759
12760
12761
12762
12763
12764
12765
12766
12767
12768
12769
12770
12771
12772
12773
12774
12775
12776
12777
12778
12779
12780
12781
12782
12783
12784
12785
12786
12787
12788
12789
12790
12791
12792
12793
12794
|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qapplication.h"
#include "qapplication_p.h"
#include "qbrush.h"
#include "qcursor.h"
#include "qdesktopwidget.h"
#include "qevent.h"
#include "qhash.h"
#include "qlayout.h"
#include "qmenu.h"
#include "qmetaobject.h"
#include "qpixmap.h"
#include "qpointer.h"
#include "qstack.h"
#include "qstyle.h"
#include "qstylefactory.h"
#include "qvariant.h"
#include "qwidget.h"
#include "qstyleoption.h"
#ifndef QT_NO_ACCESSIBILITY
# include "qaccessible.h"
#endif
#if defined(Q_WS_WIN)
# include "qt_windows.h"
#endif
#ifdef Q_WS_MAC
# include "qt_mac_p.h"
# include "qt_cocoa_helpers_mac_p.h"
# include "qmainwindow.h"
# include "qtoolbar.h"
# include <private/qmainwindowlayout_p.h>
#endif
#if defined(Q_WS_QWS)
# include "qwsdisplay_qws.h"
# include "qwsmanager_qws.h"
# include "qpaintengine.h" // for PorterDuff
# include "private/qwindowsurface_qws_p.h"
#endif
#if defined(Q_WS_QPA)
#include "qplatformwindow_qpa.h"
#endif
#include "qpainter.h"
#include "qtooltip.h"
#include "qwhatsthis.h"
#include "qdebug.h"
#include "private/qstylesheetstyle_p.h"
#include "private/qstyle_p.h"
#include "private/qinputcontext_p.h"
#include "qfileinfo.h"
#include "private/qsoftkeymanager_p.h"
#if defined (Q_WS_WIN)
# include <private/qwininputcontext_p.h>
#endif
#if defined(Q_WS_X11)
# include <private/qpaintengine_x11_p.h>
# include "qx11info_x11.h"
#endif
#include <private/qgraphicseffect_p.h>
#include <private/qwindowsurface_p.h>
#include <private/qbackingstore_p.h>
#ifdef Q_WS_MAC
# include <private/qpaintengine_mac_p.h>
#endif
#include <private/qpaintengine_raster_p.h>
#if defined(Q_OS_SYMBIAN)
#include "private/qt_s60_p.h"
#endif
#include "qwidget_p.h"
#include "qaction_p.h"
#include "qlayout_p.h"
#include "QtGui/qgraphicsproxywidget.h"
#include "QtGui/qgraphicsscene.h"
#include "private/qgraphicsproxywidget_p.h"
#include "QtGui/qabstractscrollarea.h"
#include "private/qabstractscrollarea_p.h"
#include "private/qevent_p.h"
#include "private/qgraphicssystem_p.h"
#include "private/qgesturemanager_p.h"
#ifdef QT_KEYPAD_NAVIGATION
#include "qtabwidget.h" // Needed in inTabWidget()
#endif // QT_KEYPAD_NAVIGATION
#ifdef Q_WS_S60
#include <aknappui.h>
#endif
#ifdef Q_OS_BLACKBERRY
#include <bps/navigator.h>
#endif
#ifdef Q_OS_BLACKBERRY_TABLET
#include <bps/orientation.h>
#endif
// widget/widget data creation count
//#define QWIDGET_EXTRA_DEBUG
//#define ALIEN_DEBUG
QT_BEGIN_NAMESPACE
#if !defined(Q_WS_QWS)
static bool qt_enable_backingstore = true;
#endif
#ifdef Q_WS_X11
// for compatibility with Qt 4.0
Q_GUI_EXPORT void qt_x11_set_global_double_buffer(bool enable)
{
qt_enable_backingstore = enable;
}
#endif
#if defined(QT_MAC_USE_COCOA)
bool qt_mac_clearDirtyOnWidgetInsideDrawWidget = false;
#endif
static inline bool qRectIntersects(const QRect &r1, const QRect &r2)
{
return (qMax(r1.left(), r2.left()) <= qMin(r1.right(), r2.right()) &&
qMax(r1.top(), r2.top()) <= qMin(r1.bottom(), r2.bottom()));
}
static inline bool hasBackingStoreSupport()
{
#ifdef Q_WS_MAC
return QApplicationPrivate::graphicsSystem() != 0;
#else
return true;
#endif
}
#ifdef Q_WS_MAC
# define QT_NO_PAINT_DEBUG
#endif
extern bool qt_sendSpontaneousEvent(QObject*, QEvent*); // qapplication.cpp
extern QDesktopWidget *qt_desktopWidget; // qapplication.cpp
/*!
\internal
\class QWidgetBackingStoreTracker
\brief Class which allows tracking of which widgets are using a given backing store
QWidgetBackingStoreTracker is a thin wrapper around a QWidgetBackingStore pointer,
which maintains a list of the QWidgets which are currently using the backing
store. This list is modified via the registerWidget and unregisterWidget functions.
*/
QWidgetBackingStoreTracker::QWidgetBackingStoreTracker()
: m_ptr(0)
{
}
QWidgetBackingStoreTracker::~QWidgetBackingStoreTracker()
{
delete m_ptr;
}
/*!
\internal
Destroy the contained QWidgetBackingStore, if not null, and clear the list of
widgets using the backing store, then create a new QWidgetBackingStore, providing
the QWidget.
*/
void QWidgetBackingStoreTracker::create(QWidget *widget)
{
destroy();
m_ptr = new QWidgetBackingStore(widget);
}
/*!
\internal
Destroy the contained QWidgetBackingStore, if not null, and clear the list of
widgets using the backing store.
*/
void QWidgetBackingStoreTracker::destroy()
{
delete m_ptr;
m_ptr = 0;
m_widgets.clear();
}
/*!
\internal
Add the widget to the list of widgets currently using the backing store.
If the widget was already in the list, this function is a no-op.
*/
void QWidgetBackingStoreTracker::registerWidget(QWidget *w)
{
Q_ASSERT(m_ptr);
Q_ASSERT(w->internalWinId());
Q_ASSERT(qt_widget_private(w)->maybeBackingStore() == m_ptr);
m_widgets.insert(w);
}
/*!
\internal
Remove the widget from the list of widgets currently using the backing store.
If the widget was in the list, and removing it causes the list to be empty,
the backing store is deleted.
If the widget was not in the list, this function is a no-op.
*/
void QWidgetBackingStoreTracker::unregisterWidget(QWidget *w)
{
if (m_widgets.remove(w) && m_widgets.isEmpty()) {
delete m_ptr;
m_ptr = 0;
}
}
/*!
\internal
Recursively remove widget and all of its descendents.
*/
void QWidgetBackingStoreTracker::unregisterWidgetSubtree(QWidget *widget)
{
unregisterWidget(widget);
foreach (QObject *child, widget->children())
if (QWidget *childWidget = qobject_cast<QWidget *>(child))
unregisterWidgetSubtree(childWidget);
}
QWidgetPrivate::QWidgetPrivate(int version)
: QObjectPrivate(version)
, extra(0)
, focus_next(0)
, focus_prev(0)
, focus_child(0)
, layout(0)
, needsFlush(0)
, redirectDev(0)
, widgetItem(0)
, extraPaintEngine(0)
, polished(0)
, graphicsEffect(0)
#if !defined(QT_NO_IM)
, imHints(Qt::ImhNone)
#endif
, inheritedFontResolveMask(0)
, inheritedPaletteResolveMask(0)
, leftmargin(0)
, topmargin(0)
, rightmargin(0)
, bottommargin(0)
, leftLayoutItemMargin(0)
, topLayoutItemMargin(0)
, rightLayoutItemMargin(0)
, bottomLayoutItemMargin(0)
, hd(0)
, size_policy(QSizePolicy::Preferred, QSizePolicy::Preferred)
, fg_role(QPalette::NoRole)
, bg_role(QPalette::NoRole)
, dirtyOpaqueChildren(1)
, isOpaque(0)
, inDirtyList(0)
, isScrolled(0)
, isMoved(0)
, isGLWidget(0)
, usesDoubleBufferedGLContext(0)
#ifndef QT_NO_IM
, inheritsInputMethodHints(0)
#endif
, inSetParent(0)
#if defined(Q_WS_X11)
, picture(0)
#elif defined(Q_WS_WIN)
, noPaintOnScreen(0)
#ifndef QT_NO_GESTURES
, nativeGesturePanEnabled(0)
#endif
#elif defined(Q_WS_MAC)
, needWindowChange(0)
, window_event(0)
, qd_hd(0)
#elif defined(Q_OS_SYMBIAN)
, symbianScreenNumber(0)
, fixNativeOrientationCalled(false)
, isGLGlobalShareWidget(0)
#endif
{
if (!qApp) {
qFatal("QWidget: Must construct a QApplication before a QPaintDevice");
return;
}
if (version != QObjectPrivateVersion)
qFatal("Cannot mix incompatible Qt libraries");
isWidget = true;
memset(high_attributes, 0, sizeof(high_attributes));
#if QT_MAC_USE_COCOA
drawRectOriginalAdded = false;
originalDrawMethod = true;
changeMethods = false;
isInUnifiedToolbar = false;
unifiedSurface = 0;
toolbar_ancestor = 0;
flushRequested = false;
touchEventsEnabled = false;
#endif // QT_MAC_USE_COCOA
#ifdef QWIDGET_EXTRA_DEBUG
static int count = 0;
qDebug() << "widgets" << ++count;
#endif
}
QWidgetPrivate::~QWidgetPrivate()
{
#ifdef Q_OS_SYMBIAN
_q_cleanupWinIds();
#endif
if (widgetItem)
widgetItem->wid = 0;
if (extra)
deleteExtra();
#ifndef QT_NO_GRAPHICSEFFECT
delete graphicsEffect;
#endif //QT_NO_GRAPHICSEFFECT
}
class QDummyWindowSurface : public QWindowSurface
{
public:
QDummyWindowSurface(QWidget *window) : QWindowSurface(window) {}
QPaintDevice *paintDevice() { return window(); }
void flush(QWidget *, const QRegion &, const QPoint &) {}
};
QWindowSurface *QWidgetPrivate::createDefaultWindowSurface()
{
Q_Q(QWidget);
QWindowSurface *surface;
#ifndef QT_NO_PROPERTIES
if (q->property("_q_DummyWindowSurface").toBool()) {
surface = new QDummyWindowSurface(q);
} else
#endif
{
if (QApplicationPrivate::graphicsSystem())
surface = QApplicationPrivate::graphicsSystem()->createWindowSurface(q);
else
surface = createDefaultWindowSurface_sys();
}
return surface;
}
/*!
\internal
*/
void QWidgetPrivate::scrollChildren(int dx, int dy)
{
Q_Q(QWidget);
if (q->children().size() > 0) { // scroll children
QPoint pd(dx, dy);
QObjectList childObjects = q->children();
for (int i = 0; i < childObjects.size(); ++i) { // move all children
QWidget *w = qobject_cast<QWidget*>(childObjects.at(i));
if (w && !w->isWindow()) {
QPoint oldp = w->pos();
QRect r(w->pos() + pd, w->size());
w->data->crect = r;
#ifndef Q_WS_QWS
if (w->testAttribute(Qt::WA_WState_Created))
w->d_func()->setWSGeometry();
#endif
w->d_func()->setDirtyOpaqueRegion();
QMoveEvent e(r.topLeft(), oldp);
QApplication::sendEvent(w, &e);
}
}
}
}
#ifndef QT_NO_IM
QInputContext *QWidgetPrivate::assignedInputContext() const
{
const QWidget *widget = q_func();
while (widget) {
if (QInputContext *qic = widget->d_func()->ic)
return qic;
widget = widget->parentWidget();
}
return 0;
}
QInputContext *QWidgetPrivate::inputContext() const
{
if (QInputContext *qic = assignedInputContext())
return qic;
return qApp->inputContext();
}
/*!
This function returns the QInputContext for this widget. By
default the input context is inherited from the widgets
parent. For toplevels it is inherited from QApplication.
You can override this and set a special input context for this
widget by using the setInputContext() method.
\sa setInputContext()
*/
QInputContext *QWidget::inputContext()
{
Q_D(QWidget);
if (!testAttribute(Qt::WA_InputMethodEnabled))
return 0;
return d->inputContext();
}
/*!
This function sets the input context \a context
on this widget.
Qt takes ownership of the given input \a context.
\sa inputContext()
*/
void QWidget::setInputContext(QInputContext *context)
{
Q_D(QWidget);
if (!testAttribute(Qt::WA_InputMethodEnabled))
return;
if (context == d->ic)
return;
if (d->ic)
delete d->ic;
d->ic = context;
if (d->ic)
d->ic->setParent(this);
}
#endif // QT_NO_IM
/*!
\obsolete
This function can be called on the widget that currently has focus
to reset the input method operating on it.
This function is providing for convenience, instead you should use
\l{QInputContext::}{reset()} on the input context that was
returned by inputContext().
\sa QInputContext, inputContext(), QInputContext::reset()
*/
void QWidget::resetInputContext()
{
if (!hasFocus())
return;
#ifndef QT_NO_IM
QInputContext *qic = this->inputContext();
if(qic)
qic->reset();
#endif // QT_NO_IM
}
#ifdef QT_KEYPAD_NAVIGATION
QPointer<QWidget> QWidgetPrivate::editingWidget;
/*!
Returns true if this widget currently has edit focus; otherwise false.
This feature is only available in Qt for Embedded Linux.
\sa setEditFocus(), QApplication::keypadNavigationEnabled()
*/
bool QWidget::hasEditFocus() const
{
const QWidget* w = this;
while (w->d_func()->extra && w->d_func()->extra->focus_proxy)
w = w->d_func()->extra->focus_proxy;
return QWidgetPrivate::editingWidget == w;
}
/*!
\fn void QWidget::setEditFocus(bool enable)
If \a enable is true, make this widget have edit focus, in which
case Qt::Key_Up and Qt::Key_Down will be delivered to the widget
normally; otherwise, Qt::Key_Up and Qt::Key_Down are used to
change focus.
This feature is only available in Qt for Embedded Linux and Qt
for Symbian.
\sa hasEditFocus(), QApplication::keypadNavigationEnabled()
*/
void QWidget::setEditFocus(bool on)
{
QWidget *f = this;
while (f->d_func()->extra && f->d_func()->extra->focus_proxy)
f = f->d_func()->extra->focus_proxy;
if (QWidgetPrivate::editingWidget && QWidgetPrivate::editingWidget != f)
QWidgetPrivate::editingWidget->setEditFocus(false);
if (on && !f->hasFocus())
f->setFocus();
if ((!on && !QWidgetPrivate::editingWidget)
|| (on && QWidgetPrivate::editingWidget == f)) {
return;
}
if (!on && QWidgetPrivate::editingWidget == f) {
QWidgetPrivate::editingWidget = 0;
QEvent event(QEvent::LeaveEditFocus);
QApplication::sendEvent(f, &event);
QApplication::sendEvent(f->style(), &event);
} else if (on) {
QWidgetPrivate::editingWidget = f;
QEvent event(QEvent::EnterEditFocus);
QApplication::sendEvent(f, &event);
QApplication::sendEvent(f->style(), &event);
}
}
#endif
/*!
\property QWidget::autoFillBackground
\brief whether the widget background is filled automatically
\since 4.1
If enabled, this property will cause Qt to fill the background of the
widget before invoking the paint event. The color used is defined by the
QPalette::Window color role from the widget's \l{QPalette}{palette}.
In addition, Windows are always filled with QPalette::Window, unless the
WA_OpaquePaintEvent or WA_NoSystemBackground attributes are set.
This property cannot be turned off (i.e., set to false) if a widget's
parent has a static gradient for its background.
\warning Use this property with caution in conjunction with
\l{Qt Style Sheets}. When a widget has a style sheet with a valid
background or a border-image, this property is automatically disabled.
By default, this property is false.
\sa Qt::WA_OpaquePaintEvent, Qt::WA_NoSystemBackground,
{QWidget#Transparency and Double Buffering}{Transparency and Double Buffering}
*/
bool QWidget::autoFillBackground() const
{
Q_D(const QWidget);
return d->extra && d->extra->autoFillBackground;
}
void QWidget::setAutoFillBackground(bool enabled)
{
Q_D(QWidget);
if (!d->extra)
d->createExtra();
if (d->extra->autoFillBackground == enabled)
return;
d->extra->autoFillBackground = enabled;
d->updateIsOpaque();
update();
d->updateIsOpaque();
}
/*!
\class QWidget
\brief The QWidget class is the base class of all user interface objects.
\ingroup basicwidgets
The widget is the atom of the user interface: it receives mouse, keyboard
and other events from the window system, and paints a representation of
itself on the screen. Every widget is rectangular, and they are sorted in a
Z-order. A widget is clipped by its parent and by the widgets in front of
it.
A widget that is not embedded in a parent widget is called a window.
Usually, windows have a frame and a title bar, although it is also possible
to create windows without such decoration using suitable
\l{Qt::WindowFlags}{window flags}). In Qt, QMainWindow and the various
subclasses of QDialog are the most common window types.
Every widget's constructor accepts one or two standard arguments:
\list 1
\i \c{QWidget *parent = 0} is the parent of the new widget. If it is 0
(the default), the new widget will be a window. If not, it will be
a child of \e parent, and be constrained by \e parent's geometry
(unless you specify Qt::Window as window flag).
\i \c{Qt::WindowFlags f = 0} (where available) sets the window flags;
the default is suitable for almost all widgets, but to get, for
example, a window without a window system frame, you must use
special flags.
\endlist
QWidget has many member functions, but some of them have little direct
functionality; for example, QWidget has a font property, but never uses
this itself. There are many subclasses which provide real functionality,
such as QLabel, QPushButton, QListWidget, and QTabWidget.
\section1 Top-Level and Child Widgets
A widget without a parent widget is always an independent window (top-level
widget). For these widgets, setWindowTitle() and setWindowIcon() set the
title bar and icon respectively.
Non-window widgets are child widgets, displayed within their parent
widgets. Most widgets in Qt are mainly useful as child widgets. For
example, it is possible to display a button as a top-level window, but most
people prefer to put their buttons inside other widgets, such as QDialog.
\image parent-child-widgets.png A parent widget containing various child widgets.
The diagram above shows a QGroupBox widget being used to hold various child
widgets in a layout provided by QGridLayout. The QLabel child widgets have
been outlined to indicate their full sizes.
If you want to use a QWidget to hold child widgets you will usually want to
add a layout to the parent QWidget. See \l{Layout Management} for more
information.
\section1 Composite Widgets
When a widget is used as a container to group a number of child widgets, it
is known as a composite widget. These can be created by constructing a
widget with the required visual properties - a QFrame, for example - and
adding child widgets to it, usually managed by a layout. The above diagram
shows such a composite widget that was created using \l{Qt Designer}.
Composite widgets can also be created by subclassing a standard widget,
such as QWidget or QFrame, and adding the necessary layout and child
widgets in the constructor of the subclass. Many of the \l{Qt Examples}
{examples provided with Qt} use this approach, and it is also covered in
the Qt \l{Tutorials}.
\section1 Custom Widgets and Painting
Since QWidget is a subclass of QPaintDevice, subclasses can be used to
display custom content that is composed using a series of painting
operations with an instance of the QPainter class. This approach contrasts
with the canvas-style approach used by the \l{Graphics View}
{Graphics View Framework} where items are added to a scene by the
application and are rendered by the framework itself.
Each widget performs all painting operations from within its paintEvent()
function. This is called whenever the widget needs to be redrawn, either
as a result of some external change or when requested by the application.
The \l{widgets/analogclock}{Analog Clock example} shows how a simple widget
can handle paint events.
\section1 Size Hints and Size Policies
When implementing a new widget, it is almost always useful to reimplement
sizeHint() to provide a reasonable default size for the widget and to set
the correct size policy with setSizePolicy().
By default, composite widgets which do not provide a size hint will be
sized according to the space requirements of their child widgets.
The size policy lets you supply good default behavior for the layout
management system, so that other widgets can contain and manage yours
easily. The default size policy indicates that the size hint represents
the preferred size of the widget, and this is often good enough for many
widgets.
\note The size of top-level widgets are constrained to 2/3 of the desktop's
height and width. You can resize() the widget manually if these bounds are
inadequate.
\section1 Events
Widgets respond to events that are typically caused by user actions. Qt
delivers events to widgets by calling specific event handler functions with
instances of QEvent subclasses containing information about each event.
If your widget only contains child widgets, you probably do not need to
implement any event handlers. If you want to detect a mouse click in a
child widget call the child's underMouse() function inside the widget's
mousePressEvent().
The \l{widgets/scribble}{Scribble example} implements a wider set of
events to handle mouse movement, button presses, and window resizing.
You will need to supply the behavior and content for your own widgets, but
here is a brief overview of the events that are relevant to QWidget,
starting with the most common ones:
\list
\i paintEvent() is called whenever the widget needs to be repainted.
Every widget displaying custom content must implement it. Painting
using a QPainter can only take place in a paintEvent() or a
function called by a paintEvent().
\i resizeEvent() is called when the widget has been resized.
\i mousePressEvent() is called when a mouse button is pressed while
the mouse cursor is inside the widget, or when the widget has
grabbed the mouse using grabMouse(). Pressing the mouse without
releasing it is effectively the same as calling grabMouse().
\i mouseReleaseEvent() is called when a mouse button is released. A
widget receives mouse release events when it has received the
corresponding mouse press event. This means that if the user
presses the mouse inside \e your widget, then drags the mouse
somewhere else before releasing the mouse button, \e your widget
receives the release event. There is one exception: if a popup menu
appears while the mouse button is held down, this popup immediately
steals the mouse events.
\i mouseDoubleClickEvent() is called when the user double-clicks in
the widget. If the user double-clicks, the widget receives a mouse
press event, a mouse release event and finally this event instead
of a second mouse press event. (Some mouse move events may also be
received if the mouse is not held steady during this operation.) It
is \e{not possible} to distinguish a click from a double-click
until the second click arrives. (This is one reason why most GUI
books recommend that double-clicks be an extension of
single-clicks, rather than trigger a different action.)
\endlist
Widgets that accept keyboard input need to reimplement a few more event
handlers:
\list
\i keyPressEvent() is called whenever a key is pressed, and again when
a key has been held down long enough for it to auto-repeat. The
\key Tab and \key Shift+Tab keys are only passed to the widget if
they are not used by the focus-change mechanisms. To force those
keys to be processed by your widget, you must reimplement
QWidget::event().
\i focusInEvent() is called when the widget gains keyboard focus
(assuming you have called setFocusPolicy()). Well-behaved widgets
indicate that they own the keyboard focus in a clear but discreet
way.
\i focusOutEvent() is called when the widget loses keyboard focus.
\endlist
You may be required to also reimplement some of the less common event
handlers:
\list
\i mouseMoveEvent() is called whenever the mouse moves while a mouse
button is held down. This can be useful during drag and drop
operations. If you call \l{setMouseTracking()}{setMouseTracking}(true),
you get mouse move events even when no buttons are held down.
(See also the \l{Drag and Drop} guide.)
\i keyReleaseEvent() is called whenever a key is released and while it
is held down (if the key is auto-repeating). In that case, the
widget will receive a pair of key release and key press event for
every repeat. The \key Tab and \key Shift+Tab keys are only passed
to the widget if they are not used by the focus-change mechanisms.
To force those keys to be processed by your widget, you must
reimplement QWidget::event().
\i wheelEvent() is called whenever the user turns the mouse wheel
while the widget has the focus.
\i enterEvent() is called when the mouse enters the widget's screen
space. (This excludes screen space owned by any of the widget's
children.)
\i leaveEvent() is called when the mouse leaves the widget's screen
space. If the mouse enters a child widget it will not cause a
leaveEvent().
\i moveEvent() is called when the widget has been moved relative to
its parent.
\i closeEvent() is called when the user closes the widget (or when
close() is called).
\endlist
There are also some rather obscure events described in the documentation
for QEvent::Type. To handle these events, you need to reimplement event()
directly.
The default implementation of event() handles \key Tab and \key Shift+Tab
(to move the keyboard focus), and passes on most of the other events to
one of the more specialized handlers above.
Events and the mechanism used to deliver them are covered in
\l{The Event System}.
\section1 Groups of Functions and Properties
\table
\header \i Context \i Functions and Properties
\row \i Window functions \i
show(),
hide(),
raise(),
lower(),
close().
\row \i Top-level windows \i
\l windowModified, \l windowTitle, \l windowIcon, \l windowIconText,
\l isActiveWindow, activateWindow(), \l minimized, showMinimized(),
\l maximized, showMaximized(), \l fullScreen, showFullScreen(),
showNormal().
\row \i Window contents \i
update(),
repaint(),
scroll().
\row \i Geometry \i
\l pos, x(), y(), \l rect, \l size, width(), height(), move(), resize(),
\l sizePolicy, sizeHint(), minimumSizeHint(),
updateGeometry(), layout(),
\l frameGeometry, \l geometry, \l childrenRect, \l childrenRegion,
adjustSize(),
mapFromGlobal(), mapToGlobal(),
mapFromParent(), mapToParent(),
\l maximumSize, \l minimumSize, \l sizeIncrement,
\l baseSize, setFixedSize()
\row \i Mode \i
\l visible, isVisibleTo(),
\l enabled, isEnabledTo(),
\l modal,
isWindow(),
\l mouseTracking,
\l updatesEnabled,
visibleRegion().
\row \i Look and feel \i
style(),
setStyle(),
\l styleSheet,
\l cursor,
\l font,
\l palette,
backgroundRole(), setBackgroundRole(),
fontInfo(), fontMetrics().
\row \i Keyboard focus functions \i
\l focus, \l focusPolicy,
setFocus(), clearFocus(), setTabOrder(), setFocusProxy(),
focusNextChild(), focusPreviousChild().
\row \i Mouse and keyboard grabbing \i
grabMouse(), releaseMouse(),
grabKeyboard(), releaseKeyboard(),
mouseGrabber(), keyboardGrabber().
\row \i Event handlers \i
event(),
mousePressEvent(),
mouseReleaseEvent(),
mouseDoubleClickEvent(),
mouseMoveEvent(),
keyPressEvent(),
keyReleaseEvent(),
focusInEvent(),
focusOutEvent(),
wheelEvent(),
enterEvent(),
leaveEvent(),
paintEvent(),
moveEvent(),
resizeEvent(),
closeEvent(),
dragEnterEvent(),
dragMoveEvent(),
dragLeaveEvent(),
dropEvent(),
childEvent(),
showEvent(),
hideEvent(),
customEvent().
changeEvent(),
\row \i System functions \i
parentWidget(), window(), setParent(), winId(),
find(), metric().
\row \i Interactive help \i
setToolTip(), setWhatsThis()
\endtable
\section1 Widget Style Sheets
In addition to the standard widget styles for each platform, widgets can
also be styled according to rules specified in a \l{styleSheet}
{style sheet}. This feature enables you to customize the appearance of
specific widgets to provide visual cues to users about their purpose. For
example, a button could be styled in a particular way to indicate that it
performs a destructive action.
The use of widget style sheets is described in more detail in the
\l{Qt Style Sheets} document.
\section1 Transparency and Double Buffering
Since Qt 4.0, QWidget automatically double-buffers its painting, so there
is no need to write double-buffering code in paintEvent() to avoid
flicker.
Since Qt 4.1, the Qt::WA_ContentsPropagated widget attribute has been
deprecated. Instead, the contents of parent widgets are propagated by
default to each of their children as long as Qt::WA_PaintOnScreen is not
set. Custom widgets can be written to take advantage of this feature by
updating irregular regions (to create non-rectangular child widgets), or
painting with colors that have less than full alpha component. The
following diagram shows how attributes and properties of a custom widget
can be fine-tuned to achieve different effects.
\image propagation-custom.png
In the above diagram, a semi-transparent rectangular child widget with an
area removed is constructed and added to a parent widget (a QLabel showing
a pixmap). Then, different properties and widget attributes are set to
achieve different effects:
\list
\i The left widget has no additional properties or widget attributes
set. This default state suits most custom widgets using
transparency, are irregularly-shaped, or do not paint over their
entire area with an opaque brush.
\i The center widget has the \l autoFillBackground property set. This
property is used with custom widgets that rely on the widget to
supply a default background, and do not paint over their entire
area with an opaque brush.
\i The right widget has the Qt::WA_OpaquePaintEvent widget attribute
set. This indicates that the widget will paint over its entire area
with opaque colors. The widget's area will initially be
\e{uninitialized}, represented in the diagram with a red diagonal
grid pattern that shines through the overpainted area. The
Qt::WA_OpaquePaintArea attribute is useful for widgets that need to
paint their own specialized contents quickly and do not need a
default filled background.
\endlist
To rapidly update custom widgets with simple background colors, such as
real-time plotting or graphing widgets, it is better to define a suitable
background color (using setBackgroundRole() with the
QPalette::Window role), set the \l autoFillBackground property, and only
implement the necessary drawing functionality in the widget's paintEvent().
To rapidly update custom widgets that constantly paint over their entire
areas with opaque content, e.g., video streaming widgets, it is better to
set the widget's Qt::WA_OpaquePaintEvent, avoiding any unnecessary overhead
associated with repainting the widget's background.
If a widget has both the Qt::WA_OpaquePaintEvent widget attribute \e{and}
the \l autoFillBackground property set, the Qt::WA_OpaquePaintEvent
attribute takes precedence. Depending on your requirements, you should
choose either one of them.
Since Qt 4.1, the contents of parent widgets are also propagated to
standard Qt widgets. This can lead to some unexpected results if the
parent widget is decorated in a non-standard way, as shown in the diagram
below.
\image propagation-standard.png
The scope for customizing the painting behavior of standard Qt widgets,
without resorting to subclassing, is slightly less than that possible for
custom widgets. Usually, the desired appearance of a standard widget can be
achieved by setting its \l autoFillBackground property.
\section1 Creating Translucent Windows
Since Qt 4.5, it has been possible to create windows with translucent regions
on window systems that support compositing.
To enable this feature in a top-level widget, set its Qt::WA_TranslucentBackground
attribute with setAttribute() and ensure that its background is painted with
non-opaque colors in the regions you want to be partially transparent.
Platform notes:
\list
\o X11: This feature relies on the use of an X server that supports ARGB visuals
and a compositing window manager.
\o Windows: The widget needs to have the Qt::FramelessWindowHint window flag set
for the translucency to work.
\endlist
\section1 Native Widgets vs Alien Widgets
Introduced in Qt 4.4, alien widgets are widgets unknown to the windowing
system. They do not have a native window handle associated with them. This
feature significantly speeds up widget painting, resizing, and removes flicker.
Should you require the old behavior with native windows, you can choose
one of the following options:
\list 1
\i Use the \c{QT_USE_NATIVE_WINDOWS=1} in your environment.
\i Set the Qt::AA_NativeWindows attribute on your application. All
widgets will be native widgets.
\i Set the Qt::WA_NativeWindow attribute on widgets: The widget itself
and all of its ancestors will become native (unless
Qt::WA_DontCreateNativeAncestors is set).
\i Call QWidget::winId to enforce a native window (this implies 3).
\i Set the Qt::WA_PaintOnScreen attribute to enforce a native window
(this implies 3).
\endlist
\sa QEvent, QPainter, QGridLayout, QBoxLayout
\section1 Softkeys
Since Qt 4.6, Softkeys are usually physical keys on a device that have a corresponding label or
other visual representation on the screen that is generally located next to its
physical counterpart. They are most often found on mobile phone platforms. In
modern touch based user interfaces it is also possible to have softkeys that do
not correspond to any physical keys. Softkeys differ from other onscreen labels
in that they are contextual.
In Qt, contextual softkeys are added to a widget by calling addAction() and
passing a \c QAction with a softkey role set on it. When the widget
containing the softkey actions has focus, its softkeys should appear in
the user interface. Softkeys are discovered by traversing the widget
hierarchy so it is possible to define a single set of softkeys that are
present at all times by calling addAction() for a given top level widget.
On some platforms, this concept overlaps with \c QMenuBar such that if no
other softkeys are found and the top level widget is a QMainWindow containing
a QMenuBar, the menubar actions may appear on one of the softkeys.
Note: Currently softkeys are only supported on the Symbian Platform.
\sa addAction(), QAction, QMenuBar
*/
QWidgetMapper *QWidgetPrivate::mapper = 0; // widget with wid
QWidgetSet *QWidgetPrivate::allWidgets = 0; // widgets with no wid
/*****************************************************************************
QWidget utility functions
*****************************************************************************/
QRegion qt_dirtyRegion(QWidget *widget)
{
if (!widget)
return QRegion();
QWidgetBackingStore *bs = qt_widget_private(widget)->maybeBackingStore();
if (!bs)
return QRegion();
return bs->dirtyRegion(widget);
}
/*****************************************************************************
QWidget member functions
*****************************************************************************/
/*
Widget state flags:
\list
\i Qt::WA_WState_Created The widget has a valid winId().
\i Qt::WA_WState_Visible The widget is currently visible.
\i Qt::WA_WState_Hidden The widget is hidden, i.e. it won't
become visible unless you call show() on it. Qt::WA_WState_Hidden
implies !Qt::WA_WState_Visible.
\i Qt::WA_WState_CompressKeys Compress keyboard events.
\i Qt::WA_WState_BlockUpdates Repaints and updates are disabled.
\i Qt::WA_WState_InPaintEvent Currently processing a paint event.
\i Qt::WA_WState_Reparented The widget has been reparented.
\i Qt::WA_WState_ConfigPending A configuration (resize/move) event is pending.
\i Qt::WA_WState_DND (Deprecated) The widget supports drag and drop, see setAcceptDrops().
\endlist
*/
struct QWidgetExceptionCleaner
{
/* this cleans up when the constructor throws an exception */
static inline void cleanup(QWidget *that, QWidgetPrivate *d)
{
#ifdef QT_NO_EXCEPTIONS
Q_UNUSED(that);
Q_UNUSED(d);
#else
QWidgetPrivate::allWidgets->remove(that);
if (d->focus_next != that) {
if (d->focus_next)
d->focus_next->d_func()->focus_prev = d->focus_prev;
if (d->focus_prev)
d->focus_prev->d_func()->focus_next = d->focus_next;
}
#endif
}
};
/*!
Constructs a widget which is a child of \a parent, with widget
flags set to \a f.
If \a parent is 0, the new widget becomes a window. If
\a parent is another widget, this widget becomes a child window
inside \a parent. The new widget is deleted when its \a parent is
deleted.
The widget flags argument, \a f, is normally 0, but it can be set
to customize the frame of a window (i.e. \a
parent must be 0). To customize the frame, use a value composed
from the bitwise OR of any of the \l{Qt::WindowFlags}{window flags}.
If you add a child widget to an already visible widget you must
explicitly show the child to make it visible.
Note that the X11 version of Qt may not be able to deliver all
combinations of style flags on all systems. This is because on
X11, Qt can only ask the window manager, and the window manager
can override the application's settings. On Windows, Qt can set
whatever flags you want.
\sa windowFlags
*/
QWidget::QWidget(QWidget *parent, Qt::WindowFlags f)
: QObject(*new QWidgetPrivate, 0), QPaintDevice()
{
QT_TRY {
d_func()->init(parent, f);
} QT_CATCH(...) {
QWidgetExceptionCleaner::cleanup(this, d_func());
QT_RETHROW;
}
}
#ifdef QT3_SUPPORT
/*!
\overload
\obsolete
*/
QWidget::QWidget(QWidget *parent, const char *name, Qt::WindowFlags f)
: QObject(*new QWidgetPrivate, 0), QPaintDevice()
{
QT_TRY {
d_func()->init(parent , f);
setObjectName(QString::fromAscii(name));
} QT_CATCH(...) {
QWidgetExceptionCleaner::cleanup(this, d_func());
QT_RETHROW;
}
}
#endif
/*! \internal
*/
QWidget::QWidget(QWidgetPrivate &dd, QWidget* parent, Qt::WindowFlags f)
: QObject(dd, 0), QPaintDevice()
{
Q_D(QWidget);
QT_TRY {
d->init(parent, f);
} QT_CATCH(...) {
QWidgetExceptionCleaner::cleanup(this, d_func());
QT_RETHROW;
}
}
/*!
\internal
*/
int QWidget::devType() const
{
return QInternal::Widget;
}
//### w is a "this" ptr, passed as a param because QWorkspace needs special logic
void QWidgetPrivate::adjustFlags(Qt::WindowFlags &flags, QWidget *w)
{
bool customize = (flags & (Qt::CustomizeWindowHint
| Qt::FramelessWindowHint
| Qt::WindowTitleHint
| Qt::WindowSystemMenuHint
| Qt::WindowMinimizeButtonHint
| Qt::WindowMaximizeButtonHint
| Qt::WindowCloseButtonHint
| Qt::WindowContextHelpButtonHint));
uint type = (flags & Qt::WindowType_Mask);
if ((type == Qt::Widget || type == Qt::SubWindow) && w && !w->parent()) {
type = Qt::Window;
flags |= Qt::Window;
}
if (flags & Qt::CustomizeWindowHint) {
// modify window flags to make them consistent.
// Only enable this on non-Mac platforms. Since the old way of doing this would
// interpret WindowSystemMenuHint as a close button and we can't change that behavior
// we can't just add this in.
#ifndef Q_WS_MAC
if (flags & (Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint | Qt::WindowContextHelpButtonHint)) {
flags |= Qt::WindowSystemMenuHint;
#else
if (flags & (Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint
| Qt::WindowSystemMenuHint)) {
#endif
flags |= Qt::WindowTitleHint;
flags &= ~Qt::FramelessWindowHint;
}
} else if (customize && !(flags & Qt::FramelessWindowHint)) {
// if any of the window hints that affect the titlebar are set
// and the window is supposed to have frame, we add a titlebar
// and system menu by default.
flags |= Qt::WindowSystemMenuHint;
flags |= Qt::WindowTitleHint;
}
if (customize)
; // don't modify window flags if the user explicitly set them.
else if (type == Qt::Dialog || type == Qt::Sheet)
#ifndef Q_WS_WINCE
flags |= Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowContextHelpButtonHint | Qt::WindowCloseButtonHint;
#else
flags |= Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowCloseButtonHint;
#endif
else if (type == Qt::Tool)
flags |= Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowCloseButtonHint;
else
flags |= Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint | Qt::WindowCloseButtonHint;
}
void QWidgetPrivate::init(QWidget *parentWidget, Qt::WindowFlags f)
{
Q_Q(QWidget);
if (QApplication::type() == QApplication::Tty)
qFatal("QWidget: Cannot create a QWidget when no GUI is being used");
Q_ASSERT(allWidgets);
if (allWidgets)
allWidgets->insert(q);
QWidget *desktopWidget = 0;
if (parentWidget && parentWidget->windowType() == Qt::Desktop) {
desktopWidget = parentWidget;
parentWidget = 0;
}
q->data = &data;
#ifndef QT_NO_THREAD
if (!parent) {
Q_ASSERT_X(q->thread() == qApp->thread(), "QWidget",
"Widgets must be created in the GUI thread.");
}
#endif
#if defined(Q_WS_X11)
if (desktopWidget) {
// make sure the widget is created on the same screen as the
// programmer specified desktop widget
xinfo = desktopWidget->d_func()->xinfo;
}
#elif defined(Q_OS_SYMBIAN)
if (desktopWidget) {
symbianScreenNumber = qt_widget_private(desktopWidget)->symbianScreenNumber;
}
#elif defined(Q_WS_QPA)
if (desktopWidget) {
int screen = desktopWidget->d_func()->topData()->screenIndex;
topData()->screenIndex = screen;
QPlatformIntegration *platform = QApplicationPrivate::platformIntegration();
platform->moveToScreen(q, screen);
}
#else
Q_UNUSED(desktopWidget);
#endif
data.fstrut_dirty = true;
data.winid = 0;
data.widget_attributes = 0;
data.window_flags = f;
data.window_state = 0;
data.focus_policy = 0;
data.context_menu_policy = Qt::DefaultContextMenu;
data.window_modality = Qt::NonModal;
data.sizehint_forced = 0;
data.is_closing = 0;
data.in_show = 0;
data.in_set_window_state = 0;
data.in_destructor = false;
// Widgets with Qt::MSWindowsOwnDC (typically QGLWidget) must have a window handle.
if (f & Qt::MSWindowsOwnDC)
q->setAttribute(Qt::WA_NativeWindow);
//#ifdef Q_WS_MAC
// q->setAttribute(Qt::WA_NativeWindow);
//#endif
q->setAttribute(Qt::WA_QuitOnClose); // might be cleared in adjustQuitOnCloseAttribute()
adjustQuitOnCloseAttribute();
q->setAttribute(Qt::WA_WState_Hidden);
//give potential windows a bigger "pre-initial" size; create_sys() will give them a new size later
#ifdef Q_OS_SYMBIAN
if (isGLWidget) {
// Don't waste GPU mem for unnecessary large egl surface until resized by application
data.crect = QRect(0,0,1,1);
} else {
data.crect = parentWidget ? QRect(0,0,100,30) : QRect(0,0,360,640);
}
#else
data.crect = parentWidget ? QRect(0,0,100,30) : QRect(0,0,640,480);
#endif
focus_next = focus_prev = q;
if ((f & Qt::WindowType_Mask) == Qt::Desktop)
q->create();
else if (parentWidget)
q->setParent(parentWidget, data.window_flags);
else {
adjustFlags(data.window_flags, q);
resolveLayoutDirection();
// opaque system background?
const QBrush &background = q->palette().brush(QPalette::Window);
setOpaque(q->isWindow() && background.style() != Qt::NoBrush && background.isOpaque());
}
data.fnt = QFont(data.fnt, q);
#if defined(Q_WS_X11)
data.fnt.x11SetScreen(xinfo.screen());
#endif // Q_WS_X11
q->setAttribute(Qt::WA_PendingMoveEvent);
q->setAttribute(Qt::WA_PendingResizeEvent);
if (++QWidgetPrivate::instanceCounter > QWidgetPrivate::maxInstances)
QWidgetPrivate::maxInstances = QWidgetPrivate::instanceCounter;
if (QApplicationPrivate::app_compile_version < 0x040200
|| QApplicationPrivate::testAttribute(Qt::AA_ImmediateWidgetCreation))
q->create();
QEvent e(QEvent::Create);
QApplication::sendEvent(q, &e);
QApplication::postEvent(q, new QEvent(QEvent::PolishRequest));
extraPaintEngine = 0;
}
void QWidgetPrivate::createRecursively()
{
Q_Q(QWidget);
q->create(0, true, true);
for (int i = 0; i < children.size(); ++i) {
QWidget *child = qobject_cast<QWidget *>(children.at(i));
if (child && !child->isHidden() && !child->isWindow() && !child->testAttribute(Qt::WA_WState_Created))
child->d_func()->createRecursively();
}
}
/*!
Creates a new widget window if \a window is 0, otherwise sets the
widget's window to \a window.
Initializes the window (sets the geometry etc.) if \a
initializeWindow is true. If \a initializeWindow is false, no
initialization is performed. This parameter only makes sense if \a
window is a valid window.
Destroys the old window if \a destroyOldWindow is true. If \a
destroyOldWindow is false, you are responsible for destroying the
window yourself (using platform native code).
The QWidget constructor calls create(0,true,true) to create a
window for this widget.
*/
void QWidget::create(WId window, bool initializeWindow, bool destroyOldWindow)
{
Q_D(QWidget);
if (testAttribute(Qt::WA_WState_Created) && window == 0 && internalWinId())
return;
if (d->data.in_destructor)
return;
Qt::WindowType type = windowType();
Qt::WindowFlags &flags = data->window_flags;
if ((type == Qt::Widget || type == Qt::SubWindow) && !parentWidget()) {
type = Qt::Window;
flags |= Qt::Window;
}
#ifndef Q_WS_QPA
if (QWidget *parent = parentWidget()) {
if (type & Qt::Window) {
if (!parent->testAttribute(Qt::WA_WState_Created))
parent->createWinId();
} else if (testAttribute(Qt::WA_NativeWindow) && !parent->internalWinId()
&& !testAttribute(Qt::WA_DontCreateNativeAncestors)) {
// We're about to create a native child widget that doesn't have a native parent;
// enforce a native handle for the parent unless the Qt::WA_DontCreateNativeAncestors
// attribute is set.
d->createWinId(window);
// Nothing more to do.
Q_ASSERT(testAttribute(Qt::WA_WState_Created));
Q_ASSERT(internalWinId());
return;
}
}
#endif //Q_WS_QPA
#ifdef QT3_SUPPORT
if (flags & Qt::WStaticContents)
setAttribute(Qt::WA_StaticContents);
if (flags & Qt::WDestructiveClose)
setAttribute(Qt::WA_DeleteOnClose);
if (flags & Qt::WShowModal)
setWindowModality(Qt::ApplicationModal);
if (flags & Qt::WMouseNoMask)
setAttribute(Qt::WA_MouseNoMask);
if (flags & Qt::WGroupLeader)
setAttribute(Qt::WA_GroupLeader);
if (flags & Qt::WNoMousePropagation)
setAttribute(Qt::WA_NoMousePropagation);
#endif
static int paintOnScreenEnv = -1;
if (paintOnScreenEnv == -1)
paintOnScreenEnv = qgetenv("QT_ONSCREEN_PAINT").toInt() > 0 ? 1 : 0;
if (paintOnScreenEnv == 1)
setAttribute(Qt::WA_PaintOnScreen);
if (QApplicationPrivate::testAttribute(Qt::AA_NativeWindows))
setAttribute(Qt::WA_NativeWindow);
#ifdef ALIEN_DEBUG
qDebug() << "QWidget::create:" << this << "parent:" << parentWidget()
<< "Alien?" << !testAttribute(Qt::WA_NativeWindow);
#endif
#if defined (Q_WS_WIN) && !defined(QT_NO_DRAGANDDROP)
// Unregister the dropsite (if already registered) before we
// re-create the widget with a native window.
if (testAttribute(Qt::WA_WState_Created) && !internalWinId() && testAttribute(Qt::WA_NativeWindow)
&& d->extra && d->extra->dropTarget) {
d->registerDropSite(false);
}
#endif // defined (Q_WS_WIN) && !defined(QT_NO_DRAGANDDROP)
d->updateIsOpaque();
setAttribute(Qt::WA_WState_Created); // set created flag
d->create_sys(window, initializeWindow, destroyOldWindow);
// a real toplevel window needs a backing store
if (isWindow() && windowType() != Qt::Desktop) {
d->topData()->backingStore.destroy();
if (hasBackingStoreSupport())
d->topData()->backingStore.create(this);
}
d->setModal_sys();
if (!isWindow() && parentWidget() && parentWidget()->testAttribute(Qt::WA_DropSiteRegistered))
setAttribute(Qt::WA_DropSiteRegistered, true);
#ifdef QT_EVAL
extern void qt_eval_init_widget(QWidget *w);
qt_eval_init_widget(this);
#endif
// need to force the resting of the icon after changing parents
if (testAttribute(Qt::WA_SetWindowIcon))
d->setWindowIcon_sys(true);
if (isWindow() && !d->topData()->iconText.isEmpty())
d->setWindowIconText_helper(d->topData()->iconText);
if (isWindow() && !d->topData()->caption.isEmpty())
d->setWindowTitle_helper(d->topData()->caption);
if (windowType() != Qt::Desktop) {
d->updateSystemBackground();
if (isWindow() && !testAttribute(Qt::WA_SetWindowIcon))
d->setWindowIcon_sys();
}
}
/*!
Destroys the widget.
All this widget's children are deleted first. The application
exits if this widget is the main widget.
*/
QWidget::~QWidget()
{
Q_D(QWidget);
d->data.in_destructor = true;
#if defined (QT_CHECK_STATE)
if (paintingActive())
qWarning("QWidget: %s (%s) deleted while being painted", className(), name());
#endif
#ifndef QT_NO_GESTURES
foreach (Qt::GestureType type, d->gestureContext.keys())
ungrabGesture(type);
#endif
// force acceptDrops false before winId is destroyed.
d->registerDropSite(false);
#ifndef QT_NO_ACTION
// remove all actions from this widget
for (int i = 0; i < d->actions.size(); ++i) {
QActionPrivate *apriv = d->actions.at(i)->d_func();
apriv->widgets.removeAll(this);
}
d->actions.clear();
#endif
#ifndef QT_NO_SHORTCUT
// Remove all shortcuts grabbed by this
// widget, unless application is closing
if (!QApplicationPrivate::is_app_closing && testAttribute(Qt::WA_GrabbedShortcut))
qApp->d_func()->shortcutMap.removeShortcut(0, this, QKeySequence());
#endif
// delete layout while we still are a valid widget
delete d->layout;
d->layout = 0;
// Remove myself from focus list
Q_ASSERT(d->focus_next->d_func()->focus_prev == this);
Q_ASSERT(d->focus_prev->d_func()->focus_next == this);
if (d->focus_next != this) {
d->focus_next->d_func()->focus_prev = d->focus_prev;
d->focus_prev->d_func()->focus_next = d->focus_next;
d->focus_next = d->focus_prev = 0;
}
#ifdef QT3_SUPPORT
if (QApplicationPrivate::main_widget == this) { // reset main widget
QApplicationPrivate::main_widget = 0;
QApplication::quit();
}
#endif
QT_TRY {
clearFocus();
} QT_CATCH(...) {
// swallow this problem because we are in a destructor
}
d->setDirtyOpaqueRegion();
if (isWindow() && isVisible() && internalWinId()) {
QT_TRY {
d->close_helper(QWidgetPrivate::CloseNoEvent);
} QT_CATCH(...) {
// if we're out of memory, at least hide the window.
QT_TRY {
hide();
} QT_CATCH(...) {
// and if that also doesn't work, then give up
}
}
}
#if defined(Q_WS_WIN) || defined(Q_WS_X11)|| defined(Q_WS_MAC)
else if (!internalWinId() && isVisible()) {
qApp->d_func()->sendSyntheticEnterLeave(this);
}
#elif defined(Q_WS_QWS) || defined(Q_WS_QPA)
else if (isVisible()) {
qApp->d_func()->sendSyntheticEnterLeave(this);
}
#endif
#ifdef Q_OS_SYMBIAN
if (d->extra && d->extra->topextra && d->extra->topextra->backingStore) {
// Okay, we are about to destroy the top-level window that owns
// the backing store. Make sure we delete the backing store right away
// before the window handle is invalid. This is important because
// the backing store will delete its window surface, which may or may
// not have a reference to this widget that will be used later to
// notify the window it no longer has a surface.
d->extra->topextra->backingStore.destroy();
}
#endif
if (QWidgetBackingStore *bs = d->maybeBackingStore()) {
bs->removeDirtyWidget(this);
if (testAttribute(Qt::WA_StaticContents))
bs->removeStaticWidget(this);
}
delete d->needsFlush;
d->needsFlush = 0;
// set all QPointers for this object to zero
if (d->hasGuards)
QObjectPrivate::clearGuards(this);
if (d->declarativeData) {
QAbstractDeclarativeData::destroyed(d->declarativeData, this);
d->declarativeData = 0; // don't activate again in ~QObject
}
#ifdef QT_MAC_USE_COCOA
// QCocoaView holds a pointer back to this widget. Clear it now
// to make sure it's not followed later on. The lifetime of the
// QCocoaView might exceed the lifetime of this widget in cases
// where Cocoa itself holds references to it.
extern void qt_mac_clearCocoaViewQWidgetPointers(QWidget *);
qt_mac_clearCocoaViewQWidgetPointers(this);
#endif
if (!d->children.isEmpty())
d->deleteChildren();
#ifndef QT_NO_ACCESSIBILITY
QAccessible::updateAccessibility(this, 0, QAccessible::ObjectDestroyed);
#endif
QApplication::removePostedEvents(this);
QT_TRY {
destroy(); // platform-dependent cleanup
} QT_CATCH(...) {
// if this fails we can't do anything about it but at least we are not allowed to throw.
}
--QWidgetPrivate::instanceCounter;
if (QWidgetPrivate::allWidgets) // might have been deleted by ~QApplication
QWidgetPrivate::allWidgets->remove(this);
QT_TRY {
QEvent e(QEvent::Destroy);
QCoreApplication::sendEvent(this, &e);
} QT_CATCH(const std::exception&) {
// if this fails we can't do anything about it but at least we are not allowed to throw.
}
}
int QWidgetPrivate::instanceCounter = 0; // Current number of widget instances
int QWidgetPrivate::maxInstances = 0; // Maximum number of widget instances
void QWidgetPrivate::setWinId(WId id) // set widget identifier
{
Q_Q(QWidget);
// the user might create a widget with Qt::Desktop window
// attribute (or create another QDesktopWidget instance), which
// will have the same windowid (the root window id) as the
// qt_desktopWidget. We should not add the second desktop widget
// to the mapper.
bool userDesktopWidget = qt_desktopWidget != 0 && qt_desktopWidget != q && q->windowType() == Qt::Desktop;
if (mapper && data.winid && !userDesktopWidget) {
mapper->remove(data.winid);
}
const WId oldWinId = data.winid;
data.winid = id;
#if defined(Q_WS_X11)
hd = id; // X11: hd == ident
#endif
if (mapper && id && !userDesktopWidget) {
mapper->insert(data.winid, q);
}
if(oldWinId != id) {
QEvent e(QEvent::WinIdChange);
QCoreApplication::sendEvent(q, &e);
}
}
void QWidgetPrivate::createTLExtra()
{
if (!extra)
createExtra();
if (!extra->topextra) {
QTLWExtra* x = extra->topextra = new QTLWExtra;
x->icon = 0;
x->iconPixmap = 0;
x->windowSurface = 0;
x->sharedPainter = 0;
x->incw = x->inch = 0;
x->basew = x->baseh = 0;
x->frameStrut.setCoords(0, 0, 0, 0);
x->normalGeometry = QRect(0,0,-1,-1);
x->savedFlags = 0;
x->opacity = 255;
x->posFromMove = false;
x->sizeAdjusted = false;
x->inTopLevelResize = false;
x->inRepaint = false;
x->embedded = 0;
#ifdef Q_WS_MAC
#ifdef QT_MAC_USE_COCOA
x->wasMaximized = false;
#endif // QT_MAC_USE_COCOA
#endif // Q_WS_MAC
createTLSysExtra();
#ifdef QWIDGET_EXTRA_DEBUG
static int count = 0;
qDebug() << "tlextra" << ++count;
#endif
#if defined(Q_WS_QPA)
x->platformWindow = 0;
x->platformWindowFormat = QPlatformWindowFormat::defaultFormat();
x->screenIndex = 0;
#endif
}
}
/*!
\internal
Creates the widget extra data.
*/
void QWidgetPrivate::createExtra()
{
if (!extra) { // if not exists
extra = new QWExtra;
extra->glContext = 0;
extra->topextra = 0;
#ifndef QT_NO_GRAPHICSVIEW
extra->proxyWidget = 0;
#endif
#ifndef QT_NO_CURSOR
extra->curs = 0;
#endif
extra->minw = 0;
extra->minh = 0;
extra->maxw = QWIDGETSIZE_MAX;
extra->maxh = QWIDGETSIZE_MAX;
extra->customDpiX = 0;
extra->customDpiY = 0;
extra->explicitMinSize = 0;
extra->explicitMaxSize = 0;
extra->autoFillBackground = 0;
extra->nativeChildrenForced = 0;
extra->inRenderWithPainter = 0;
extra->hasMask = 0;
createSysExtra();
#ifdef QWIDGET_EXTRA_DEBUG
static int count = 0;
qDebug() << "extra" << ++count;
#endif
}
}
/*!
\internal
Deletes the widget extra data.
*/
void QWidgetPrivate::deleteExtra()
{
if (extra) { // if exists
#ifndef QT_NO_CURSOR
delete extra->curs;
#endif
deleteSysExtra();
#ifndef QT_NO_STYLE_STYLESHEET
// dereference the stylesheet style
if (QStyleSheetStyle *proxy = qobject_cast<QStyleSheetStyle *>(extra->style))
proxy->deref();
#endif
if (extra->topextra) {
deleteTLSysExtra();
extra->topextra->backingStore.destroy();
delete extra->topextra->icon;
delete extra->topextra->iconPixmap;
#if defined(Q_WS_QWS) && !defined(QT_NO_QWS_MANAGER)
delete extra->topextra->qwsManager;
#endif
delete extra->topextra->windowSurface;
delete extra->topextra;
}
delete extra;
// extra->xic destroyed in QWidget::destroy()
extra = 0;
}
}
/*
Returns true if there are widgets above this which overlap with
\a rect, which is in parent's coordinate system (same as crect).
*/
bool QWidgetPrivate::isOverlapped(const QRect &rect) const
{
Q_Q(const QWidget);
const QWidget *w = q;
QRect r = rect;
while (w) {
if (w->isWindow())
return false;
QWidgetPrivate *pd = w->parentWidget()->d_func();
bool above = false;
for (int i = 0; i < pd->children.size(); ++i) {
QWidget *sibling = qobject_cast<QWidget *>(pd->children.at(i));
if (!sibling || !sibling->isVisible() || sibling->isWindow())
continue;
if (!above) {
above = (sibling == w);
continue;
}
if (qRectIntersects(sibling->d_func()->effectiveRectFor(sibling->data->crect), r)) {
const QWExtra *siblingExtra = sibling->d_func()->extra;
if (siblingExtra && siblingExtra->hasMask && !sibling->d_func()->graphicsEffect
&& !siblingExtra->mask.translated(sibling->data->crect.topLeft()).intersects(r)) {
continue;
}
return true;
}
}
w = w->parentWidget();
r.translate(pd->data.crect.topLeft());
}
return false;
}
void QWidgetPrivate::syncBackingStore()
{
if (paintOnScreen()) {
repaint_sys(dirty);
dirty = QRegion();
} else if (QWidgetBackingStore *bs = maybeBackingStore()) {
bs->sync();
}
}
void QWidgetPrivate::syncBackingStore(const QRegion ®ion)
{
if (paintOnScreen())
repaint_sys(region);
else if (QWidgetBackingStore *bs = maybeBackingStore()) {
bs->sync(q_func(), region);
}
}
void QWidgetPrivate::setUpdatesEnabled_helper(bool enable)
{
Q_Q(QWidget);
if (enable && !q->isWindow() && q->parentWidget() && !q->parentWidget()->updatesEnabled())
return; // nothing we can do
if (enable != q->testAttribute(Qt::WA_UpdatesDisabled))
return; // nothing to do
q->setAttribute(Qt::WA_UpdatesDisabled, !enable);
if (enable)
q->update();
Qt::WidgetAttribute attribute = enable ? Qt::WA_ForceUpdatesDisabled : Qt::WA_UpdatesDisabled;
for (int i = 0; i < children.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(children.at(i));
if (w && !w->isWindow() && !w->testAttribute(attribute))
w->d_func()->setUpdatesEnabled_helper(enable);
}
}
/*!
\internal
Propagate this widget's palette to all children, except style sheet
widgets, and windows that don't enable window propagation (palettes don't
normally propagate to windows).
*/
void QWidgetPrivate::propagatePaletteChange()
{
Q_Q(QWidget);
// Propagate a new inherited mask to all children.
#ifndef QT_NO_GRAPHICSVIEW
if (!q->parentWidget() && extra && extra->proxyWidget) {
QGraphicsProxyWidget *p = extra->proxyWidget;
inheritedPaletteResolveMask = p->d_func()->inheritedPaletteResolveMask | p->palette().resolve();
} else
#endif //QT_NO_GRAPHICSVIEW
if (q->isWindow() && !q->testAttribute(Qt::WA_WindowPropagation)) {
inheritedPaletteResolveMask = 0;
}
int mask = data.pal.resolve() | inheritedPaletteResolveMask;
QEvent pc(QEvent::PaletteChange);
QApplication::sendEvent(q, &pc);
for (int i = 0; i < children.size(); ++i) {
QWidget *w = qobject_cast<QWidget*>(children.at(i));
if (w && !w->testAttribute(Qt::WA_StyleSheet)
&& (!w->isWindow() || w->testAttribute(Qt::WA_WindowPropagation))) {
QWidgetPrivate *wd = w->d_func();
wd->inheritedPaletteResolveMask = mask;
wd->resolvePalette();
}
}
#if defined(QT3_SUPPORT)
q->paletteChange(q->palette()); // compatibility
#endif
}
/*
Returns the widget's clipping rectangle.
*/
QRect QWidgetPrivate::clipRect() const
{
Q_Q(const QWidget);
const QWidget * w = q;
if (!w->isVisible())
return QRect();
QRect r = effectiveRectFor(q->rect());
int ox = 0;
int oy = 0;
while (w
&& w->isVisible()
&& !w->isWindow()
&& w->parentWidget()) {
ox -= w->x();
oy -= w->y();
w = w->parentWidget();
r &= QRect(ox, oy, w->width(), w->height());
}
return r;
}
/*
Returns the widget's clipping region (without siblings).
*/
QRegion QWidgetPrivate::clipRegion() const
{
Q_Q(const QWidget);
if (!q->isVisible())
return QRegion();
QRegion r(q->rect());
const QWidget * w = q;
const QWidget *ignoreUpTo;
int ox = 0;
int oy = 0;
while (w
&& w->isVisible()
&& !w->isWindow()
&& w->parentWidget()) {
ox -= w->x();
oy -= w->y();
ignoreUpTo = w;
w = w->parentWidget();
r &= QRegion(ox, oy, w->width(), w->height());
int i = 0;
while(w->d_func()->children.at(i++) != static_cast<const QObject *>(ignoreUpTo))
;
for ( ; i < w->d_func()->children.size(); ++i) {
if(QWidget *sibling = qobject_cast<QWidget *>(w->d_func()->children.at(i))) {
if(sibling->isVisible() && !sibling->isWindow()) {
QRect siblingRect(ox+sibling->x(), oy+sibling->y(),
sibling->width(), sibling->height());
if (qRectIntersects(siblingRect, q->rect()))
r -= QRegion(siblingRect);
}
}
}
}
return r;
}
#ifndef QT_NO_GRAPHICSEFFECT
void QWidgetPrivate::invalidateGraphicsEffectsRecursively()
{
Q_Q(QWidget);
QWidget *w = q;
do {
if (w->graphicsEffect()) {
QWidgetEffectSourcePrivate *sourced =
static_cast<QWidgetEffectSourcePrivate *>(w->graphicsEffect()->source()->d_func());
if (!sourced->updateDueToGraphicsEffect)
w->graphicsEffect()->source()->d_func()->invalidateCache();
}
w = w->parentWidget();
} while (w);
}
#endif //QT_NO_GRAPHICSEFFECT
void QWidgetPrivate::setDirtyOpaqueRegion()
{
Q_Q(QWidget);
dirtyOpaqueChildren = true;
#ifndef QT_NO_GRAPHICSEFFECT
invalidateGraphicsEffectsRecursively();
#endif //QT_NO_GRAPHICSEFFECT
if (q->isWindow())
return;
QWidget *parent = q->parentWidget();
if (!parent)
return;
// TODO: instead of setting dirtyflag, manipulate the dirtyregion directly?
QWidgetPrivate *pd = parent->d_func();
if (!pd->dirtyOpaqueChildren)
pd->setDirtyOpaqueRegion();
}
const QRegion &QWidgetPrivate::getOpaqueChildren() const
{
if (!dirtyOpaqueChildren)
return opaqueChildren;
QWidgetPrivate *that = const_cast<QWidgetPrivate*>(this);
that->opaqueChildren = QRegion();
for (int i = 0; i < children.size(); ++i) {
QWidget *child = qobject_cast<QWidget *>(children.at(i));
if (!child || !child->isVisible() || child->isWindow())
continue;
const QPoint offset = child->geometry().topLeft();
QWidgetPrivate *childd = child->d_func();
QRegion r = childd->isOpaque ? child->rect() : childd->getOpaqueChildren();
if (childd->extra && childd->extra->hasMask)
r &= childd->extra->mask;
if (r.isEmpty())
continue;
r.translate(offset);
that->opaqueChildren += r;
}
that->opaqueChildren &= q_func()->rect();
that->dirtyOpaqueChildren = false;
return that->opaqueChildren;
}
void QWidgetPrivate::subtractOpaqueChildren(QRegion &source, const QRect &clipRect) const
{
if (children.isEmpty() || clipRect.isEmpty())
return;
const QRegion &r = getOpaqueChildren();
if (!r.isEmpty())
source -= (r & clipRect);
}
//subtract any relatives that are higher up than me --- this is too expensive !!!
void QWidgetPrivate::subtractOpaqueSiblings(QRegion &sourceRegion, bool *hasDirtySiblingsAbove,
bool alsoNonOpaque) const
{
Q_Q(const QWidget);
static int disableSubtractOpaqueSiblings = qgetenv("QT_NO_SUBTRACTOPAQUESIBLINGS").toInt();
if (disableSubtractOpaqueSiblings || q->isWindow())
return;
#ifdef QT_MAC_USE_COCOA
if (q->d_func()->isInUnifiedToolbar)
return;
#endif // QT_MAC_USE_COCOA
QRect clipBoundingRect;
bool dirtyClipBoundingRect = true;
QRegion parentClip;
bool dirtyParentClip = true;
QPoint parentOffset = data.crect.topLeft();
const QWidget *w = q;
while (w) {
if (w->isWindow())
break;
QWidgetPrivate *pd = w->parentWidget()->d_func();
const int myIndex = pd->children.indexOf(const_cast<QWidget *>(w));
const QRect widgetGeometry = w->d_func()->effectiveRectFor(w->data->crect);
for (int i = myIndex + 1; i < pd->children.size(); ++i) {
QWidget *sibling = qobject_cast<QWidget *>(pd->children.at(i));
if (!sibling || !sibling->isVisible() || sibling->isWindow())
continue;
const QRect siblingGeometry = sibling->d_func()->effectiveRectFor(sibling->data->crect);
if (!qRectIntersects(siblingGeometry, widgetGeometry))
continue;
if (dirtyClipBoundingRect) {
clipBoundingRect = sourceRegion.boundingRect();
dirtyClipBoundingRect = false;
}
if (!qRectIntersects(siblingGeometry, clipBoundingRect.translated(parentOffset)))
continue;
if (dirtyParentClip) {
parentClip = sourceRegion.translated(parentOffset);
dirtyParentClip = false;
}
const QPoint siblingPos(sibling->data->crect.topLeft());
const QRect siblingClipRect(sibling->d_func()->clipRect());
QRegion siblingDirty(parentClip);
siblingDirty &= (siblingClipRect.translated(siblingPos));
const bool hasMask = sibling->d_func()->extra && sibling->d_func()->extra->hasMask
&& !sibling->d_func()->graphicsEffect;
if (hasMask)
siblingDirty &= sibling->d_func()->extra->mask.translated(siblingPos);
if (siblingDirty.isEmpty())
continue;
if (sibling->d_func()->isOpaque || alsoNonOpaque) {
if (hasMask) {
siblingDirty.translate(-parentOffset);
sourceRegion -= siblingDirty;
} else {
sourceRegion -= siblingGeometry.translated(-parentOffset);
}
} else {
if (hasDirtySiblingsAbove)
*hasDirtySiblingsAbove = true;
if (sibling->d_func()->children.isEmpty())
continue;
QRegion opaqueSiblingChildren(sibling->d_func()->getOpaqueChildren());
opaqueSiblingChildren.translate(-parentOffset + siblingPos);
sourceRegion -= opaqueSiblingChildren;
}
if (sourceRegion.isEmpty())
return;
dirtyClipBoundingRect = true;
dirtyParentClip = true;
}
w = w->parentWidget();
parentOffset += pd->data.crect.topLeft();
dirtyParentClip = true;
}
}
void QWidgetPrivate::clipToEffectiveMask(QRegion ®ion) const
{
Q_Q(const QWidget);
const QWidget *w = q;
QPoint offset;
#ifndef QT_NO_GRAPHICSEFFECT
if (graphicsEffect) {
w = q->parentWidget();
offset -= data.crect.topLeft();
}
#endif //QT_NO_GRAPHICSEFFECT
while (w) {
const QWidgetPrivate *wd = w->d_func();
if (wd->extra && wd->extra->hasMask)
region &= (w != q) ? wd->extra->mask.translated(offset) : wd->extra->mask;
if (w->isWindow())
return;
offset -= wd->data.crect.topLeft();
w = w->parentWidget();
}
}
bool QWidgetPrivate::paintOnScreen() const
{
#if defined(Q_WS_QWS)
return false;
#elif defined(QT_NO_BACKINGSTORE)
return true;
#else
Q_Q(const QWidget);
if (q->testAttribute(Qt::WA_PaintOnScreen)
|| (!q->isWindow() && q->window()->testAttribute(Qt::WA_PaintOnScreen))) {
return true;
}
return !qt_enable_backingstore;
#endif
}
void QWidgetPrivate::updateIsOpaque()
{
// hw: todo: only needed if opacity actually changed
setDirtyOpaqueRegion();
#ifndef QT_NO_GRAPHICSEFFECT
if (graphicsEffect) {
// ### We should probably add QGraphicsEffect::isOpaque at some point.
setOpaque(false);
return;
}
#endif //QT_NO_GRAPHICSEFFECT
Q_Q(QWidget);
#ifdef Q_WS_X11
if (q->testAttribute(Qt::WA_X11OpenGLOverlay)) {
setOpaque(false);
return;
}
#endif
#ifdef Q_WS_S60
if (q->testAttribute(Qt::WA_TranslucentBackground)) {
if (q->windowType() & Qt::Dialog || q->windowType() & Qt::Popup) {
if (S60->avkonComponentsSupportTransparency) {
setOpaque(false);
return;
}
} else {
setOpaque(false);
return;
}
}
#endif
if (q->testAttribute(Qt::WA_OpaquePaintEvent) || q->testAttribute(Qt::WA_PaintOnScreen)) {
setOpaque(true);
return;
}
const QPalette &pal = q->palette();
if (q->autoFillBackground()) {
const QBrush &autoFillBrush = pal.brush(q->backgroundRole());
if (autoFillBrush.style() != Qt::NoBrush && autoFillBrush.isOpaque()) {
setOpaque(true);
return;
}
}
if (q->isWindow() && !q->testAttribute(Qt::WA_NoSystemBackground)) {
#ifdef Q_WS_S60
setOpaque(true);
return;
#else
const QBrush &windowBrush = q->palette().brush(QPalette::Window);
if (windowBrush.style() != Qt::NoBrush && windowBrush.isOpaque()) {
setOpaque(true);
return;
}
#endif
}
setOpaque(false);
}
void QWidgetPrivate::setOpaque(bool opaque)
{
if (isOpaque == opaque)
return;
isOpaque = opaque;
#ifdef Q_WS_MAC
macUpdateIsOpaque();
#endif
#ifdef Q_WS_X11
x11UpdateIsOpaque();
#endif
#ifdef Q_WS_WIN
winUpdateIsOpaque();
#endif
#ifdef Q_OS_SYMBIAN
s60UpdateIsOpaque();
#endif
}
void QWidgetPrivate::updateIsTranslucent()
{
#ifdef Q_WS_MAC
macUpdateIsOpaque();
#endif
#ifdef Q_WS_X11
x11UpdateIsOpaque();
#endif
#ifdef Q_WS_WIN
winUpdateIsOpaque();
#endif
#ifdef Q_OS_SYMBIAN
s60UpdateIsOpaque();
#endif
}
/*!
\fn void QPixmap::fill(const QWidget *widget, const QPoint &offset)
Fills the pixmap with the \a widget's background color or pixmap
according to the given offset.
The QPoint \a offset defines a point in widget coordinates to
which the pixmap's top-left pixel will be mapped to. This is only
significant if the widget has a background pixmap; otherwise the
pixmap will simply be filled with the background color of the
widget.
*/
void QPixmap::fill( const QWidget *widget, const QPoint &off )
{
QPainter p(this);
p.translate(-off);
widget->d_func()->paintBackground(&p, QRect(off, size()));
}
static inline void fillRegion(QPainter *painter, const QRegion &rgn, const QBrush &brush)
{
Q_ASSERT(painter);
if (brush.style() == Qt::TexturePattern) {
#ifdef Q_WS_MAC
// Optimize pattern filling on mac by using HITheme directly
// when filling with the standard widget background.
// Defined in qmacstyle_mac.cpp
extern void qt_mac_fill_background(QPainter *painter, const QRegion &rgn, const QBrush &brush);
qt_mac_fill_background(painter, rgn, brush);
#else
#if !defined(QT_NO_STYLE_S60)
// Defined in qs60style.cpp
extern bool qt_s60_fill_background(QPainter *painter, const QRegion &rgn, const QBrush &brush);
if (!qt_s60_fill_background(painter, rgn, brush))
#endif // !defined(QT_NO_STYLE_S60)
{
const QRect rect(rgn.boundingRect());
painter->setClipRegion(rgn);
painter->drawTiledPixmap(rect, brush.texture(), rect.topLeft());
}
#endif // Q_WS_MAC
} else if (brush.gradient()
&& brush.gradient()->coordinateMode() == QGradient::ObjectBoundingMode) {
painter->save();
painter->setClipRegion(rgn);
painter->fillRect(0, 0, painter->device()->width(), painter->device()->height(), brush);
painter->restore();
} else {
const QVector<QRect> &rects = rgn.rects();
for (int i = 0; i < rects.size(); ++i)
painter->fillRect(rects.at(i), brush);
}
}
void QWidgetPrivate::paintBackground(QPainter *painter, const QRegion &rgn, int flags) const
{
Q_Q(const QWidget);
#ifndef QT_NO_SCROLLAREA
bool resetBrushOrigin = false;
QPointF oldBrushOrigin;
//If we are painting the viewport of a scrollarea, we must apply an offset to the brush in case we are drawing a texture
QAbstractScrollArea *scrollArea = qobject_cast<QAbstractScrollArea *>(parent);
if (scrollArea && scrollArea->viewport() == q) {
QObjectData *scrollPrivate = static_cast<QWidget *>(scrollArea)->d_ptr.data();
QAbstractScrollAreaPrivate *priv = static_cast<QAbstractScrollAreaPrivate *>(scrollPrivate);
oldBrushOrigin = painter->brushOrigin();
resetBrushOrigin = true;
painter->setBrushOrigin(-priv->contentsOffset());
}
#endif // QT_NO_SCROLLAREA
const QBrush autoFillBrush = q->palette().brush(q->backgroundRole());
if ((flags & DrawAsRoot) && !(q->autoFillBackground() && autoFillBrush.isOpaque())) {
const QBrush bg = q->palette().brush(QPalette::Window);
#if defined(Q_WS_QWS) || defined(Q_WS_QPA)
if (!(flags & DontSetCompositionMode)) {
//copy alpha straight in
QPainter::CompositionMode oldMode = painter->compositionMode();
painter->setCompositionMode(QPainter::CompositionMode_Source);
fillRegion(painter, rgn, bg);
painter->setCompositionMode(oldMode);
} else {
fillRegion(painter, rgn, bg);
}
#else
fillRegion(painter, rgn, bg);
#endif
}
if (q->autoFillBackground())
fillRegion(painter, rgn, autoFillBrush);
if (q->testAttribute(Qt::WA_StyledBackground)) {
painter->setClipRegion(rgn);
QStyleOption opt;
opt.initFrom(q);
q->style()->drawPrimitive(QStyle::PE_Widget, &opt, painter, q);
}
#ifndef QT_NO_SCROLLAREA
if (resetBrushOrigin)
painter->setBrushOrigin(oldBrushOrigin);
#endif // QT_NO_SCROLLAREA
}
/*
\internal
This function is called when a widget is hidden or destroyed.
It resets some application global pointers that should only refer active,
visible widgets.
*/
#ifdef Q_WS_MAC
extern QPointer<QWidget> qt_button_down;
#else
extern QWidget *qt_button_down;
#endif
void QWidgetPrivate::deactivateWidgetCleanup()
{
Q_Q(QWidget);
// If this was the active application window, reset it
if (QApplication::activeWindow() == q)
QApplication::setActiveWindow(0);
// If the is the active mouse press widget, reset it
if (q == qt_button_down)
qt_button_down = 0;
}
/*!
Returns a pointer to the widget with window identifer/handle \a
id.
The window identifier type depends on the underlying window
system, see \c qwindowdefs.h for the actual definition. If there
is no widget with this identifier, 0 is returned.
*/
QWidget *QWidget::find(WId id)
{
return QWidgetPrivate::mapper ? QWidgetPrivate::mapper->value(id, 0) : 0;
}
/*!
\fn WId QWidget::internalWinId() const
\internal
Returns the window system identifier of the widget, or 0 if the widget is not created yet.
*/
/*!
\fn WId QWidget::winId() const
Returns the window system identifier of the widget.
Portable in principle, but if you use it you are probably about to
do something non-portable. Be careful.
If a widget is non-native (alien) and winId() is invoked on it, that widget
will be provided a native handle.
On Mac OS X, the type returned depends on which framework Qt was linked
against. If Qt is using Carbon, the {WId} is actually an HIViewRef. If Qt
is using Cocoa, {WId} is a pointer to an NSView.
This value may change at run-time. An event with type QEvent::WinIdChange
will be sent to the widget following a change in window system identifier.
\sa find()
*/
WId QWidget::winId() const
{
if (!testAttribute(Qt::WA_WState_Created) || !internalWinId()) {
#ifdef ALIEN_DEBUG
qDebug() << "QWidget::winId: creating native window for" << this;
#endif
QWidget *that = const_cast<QWidget*>(this);
#ifndef Q_WS_QPA
that->setAttribute(Qt::WA_NativeWindow);
#endif
that->d_func()->createWinId();
return that->data->winid;
}
return data->winid;
}
void QWidgetPrivate::createWinId(WId winid)
{
Q_Q(QWidget);
#ifdef ALIEN_DEBUG
qDebug() << "QWidgetPrivate::createWinId for" << q << winid;
#endif
const bool forceNativeWindow = q->testAttribute(Qt::WA_NativeWindow);
if (!q->testAttribute(Qt::WA_WState_Created) || (forceNativeWindow && !q->internalWinId())) {
#ifndef Q_WS_QPA
if (!q->isWindow()) {
QWidget *parent = q->parentWidget();
QWidgetPrivate *pd = parent->d_func();
if (forceNativeWindow && !q->testAttribute(Qt::WA_DontCreateNativeAncestors))
parent->setAttribute(Qt::WA_NativeWindow);
if (!parent->internalWinId()) {
pd->createWinId();
}
for (int i = 0; i < pd->children.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(pd->children.at(i));
if (w && !w->isWindow() && (!w->testAttribute(Qt::WA_WState_Created)
|| (!w->internalWinId() && w->testAttribute(Qt::WA_NativeWindow)))) {
if (w!=q) {
w->create();
} else {
w->create(winid);
// if the window has already been created, we
// need to raise it to its proper stacking position
if (winid)
w->raise();
}
}
}
} else {
q->create();
}
#else
Q_UNUSED(winid);
q->create();
#endif //Q_WS_QPA
}
}
/*!
\internal
Ensures that the widget has a window system identifier, i.e. that it is known to the windowing system.
*/
void QWidget::createWinId()
{
Q_D(QWidget);
#ifdef ALIEN_DEBUG
qDebug() << "QWidget::createWinId" << this;
#endif
// qWarning("QWidget::createWinId is obsolete, please fix your code.");
d->createWinId();
}
/*!
\since 4.4
Returns the effective window system identifier of the widget, i.e. the
native parent's window system identifier.
If the widget is native, this function returns the native widget ID.
Otherwise, the window ID of the first native parent widget, i.e., the
top-level widget that contains this widget, is returned.
\note We recommend that you do not store this value as it is likely to
change at run-time.
\sa nativeParentWidget()
*/
WId QWidget::effectiveWinId() const
{
WId id = internalWinId();
if (id || !testAttribute(Qt::WA_WState_Created))
return id;
QWidget *realParent = nativeParentWidget();
if (!realParent && d_func()->inSetParent) {
// In transitional state. This is really just a workaround. The real problem
// is that QWidgetPrivate::setParent_sys (platform specific code) first sets
// the window id to 0 (setWinId(0)) before it sets the Qt::WA_WState_Created
// attribute to false. The correct way is to do it the other way around, and
// in that case the Qt::WA_WState_Created logic above will kick in and
// return 0 whenever the widget is in a transitional state. However, changing
// the original logic for all platforms is far more intrusive and might
// break existing applications.
// Note: The widget can only be in a transitional state when changing its
// parent -- everything else is an internal error -- hence explicitly checking
// against 'inSetParent' rather than doing an unconditional return whenever
// 'realParent' is 0 (which may cause strange artifacts and headache later).
return 0;
}
// This widget *must* have a native parent widget.
Q_ASSERT(realParent);
Q_ASSERT(realParent->internalWinId());
return realParent->internalWinId();
}
#ifndef QT_NO_STYLE_STYLESHEET
/*!
\property QWidget::styleSheet
\brief the widget's style sheet
\since 4.2
The style sheet contains a textual description of customizations to the
widget's style, as described in the \l{Qt Style Sheets} document.
Since Qt 4.5, Qt style sheets fully supports Mac OS X.
\warning Qt style sheets are currently not supported for custom QStyle
subclasses. We plan to address this in some future release.
\sa setStyle(), QApplication::styleSheet, {Qt Style Sheets}
*/
QString QWidget::styleSheet() const
{
Q_D(const QWidget);
if (!d->extra)
return QString();
return d->extra->styleSheet;
}
void QWidget::setStyleSheet(const QString& styleSheet)
{
Q_D(QWidget);
d->createExtra();
QStyleSheetStyle *proxy = qobject_cast<QStyleSheetStyle *>(d->extra->style);
d->extra->styleSheet = styleSheet;
if (styleSheet.isEmpty()) { // stylesheet removed
if (!proxy)
return;
d->inheritStyle();
return;
}
if (proxy) { // style sheet update
proxy->repolish(this);
return;
}
if (testAttribute(Qt::WA_SetStyle)) {
d->setStyle_helper(new QStyleSheetStyle(d->extra->style), true);
} else {
d->setStyle_helper(new QStyleSheetStyle(0), true);
}
}
#endif // QT_NO_STYLE_STYLESHEET
/*!
\sa QWidget::setStyle(), QApplication::setStyle(), QApplication::style()
*/
QStyle *QWidget::style() const
{
Q_D(const QWidget);
if (d->extra && d->extra->style)
return d->extra->style;
return QApplication::style();
}
/*!
Sets the widget's GUI style to \a style. The ownership of the style
object is not transferred.
If no style is set, the widget uses the application's style,
QApplication::style() instead.
Setting a widget's style has no effect on existing or future child
widgets.
\warning This function is particularly useful for demonstration
purposes, where you want to show Qt's styling capabilities. Real
applications should avoid it and use one consistent GUI style
instead.
\warning Qt style sheets are currently not supported for custom QStyle
subclasses. We plan to address this in some future release.
\sa style(), QStyle, QApplication::style(), QApplication::setStyle()
*/
void QWidget::setStyle(QStyle *style)
{
Q_D(QWidget);
setAttribute(Qt::WA_SetStyle, style != 0);
d->createExtra();
#ifndef QT_NO_STYLE_STYLESHEET
if (QStyleSheetStyle *proxy = qobject_cast<QStyleSheetStyle *>(style)) {
//if for some reason someone try to set a QStyleSheetStyle, ref it
//(this may happen for exemple in QButtonDialogBox which propagates its style)
proxy->ref();
d->setStyle_helper(style, false);
} else if (qobject_cast<QStyleSheetStyle *>(d->extra->style) || !qApp->styleSheet().isEmpty()) {
// if we have an application stylesheet or have a proxy already, propagate
d->setStyle_helper(new QStyleSheetStyle(style), true);
} else
#endif
d->setStyle_helper(style, false);
}
void QWidgetPrivate::setStyle_helper(QStyle *newStyle, bool propagate, bool
#ifdef Q_WS_MAC
metalHack
#endif
)
{
Q_Q(QWidget);
QStyle *oldStyle = q->style();
#ifndef QT_NO_STYLE_STYLESHEET
QWeakPointer<QStyle> origStyle;
#endif
#ifdef Q_WS_MAC
// the metalhack boolean allows Qt/Mac to do a proper re-polish depending
// on how the Qt::WA_MacBrushedMetal attribute is set. It is only ever
// set when changing that attribute and passes the widget's CURRENT style.
// therefore no need to do a reassignment.
if (!metalHack)
#endif
{
createExtra();
#ifndef QT_NO_STYLE_STYLESHEET
origStyle = extra->style.data();
#endif
extra->style = newStyle;
}
// repolish
if (q->windowType() != Qt::Desktop) {
if (polished) {
oldStyle->unpolish(q);
#ifdef Q_WS_MAC
if (metalHack)
macUpdateMetalAttribute();
#endif
q->style()->polish(q);
#ifdef Q_WS_MAC
} else if (metalHack) {
macUpdateMetalAttribute();
#endif
}
}
if (propagate) {
for (int i = 0; i < children.size(); ++i) {
QWidget *c = qobject_cast<QWidget*>(children.at(i));
if (c)
c->d_func()->inheritStyle();
}
}
#ifndef QT_NO_STYLE_STYLESHEET
if (!qobject_cast<QStyleSheetStyle*>(newStyle)) {
if (const QStyleSheetStyle* cssStyle = qobject_cast<QStyleSheetStyle*>(origStyle.data())) {
cssStyle->clearWidgetFont(q);
}
}
#endif
QEvent e(QEvent::StyleChange);
QApplication::sendEvent(q, &e);
#ifdef QT3_SUPPORT
q->styleChange(*oldStyle);
#endif
#ifndef QT_NO_STYLE_STYLESHEET
// dereference the old stylesheet style
if (QStyleSheetStyle *proxy = qobject_cast<QStyleSheetStyle *>(origStyle.data()))
proxy->deref();
#endif
}
// Inherits style from the current parent and propagates it as necessary
void QWidgetPrivate::inheritStyle()
{
#ifndef QT_NO_STYLE_STYLESHEET
Q_Q(QWidget);
QStyleSheetStyle *proxy = extra ? qobject_cast<QStyleSheetStyle *>(extra->style) : 0;
if (!q->styleSheet().isEmpty()) {
Q_ASSERT(proxy);
proxy->repolish(q);
return;
}
QStyle *origStyle = proxy ? proxy->base : (extra ? (QStyle*)extra->style : 0);
QWidget *parent = q->parentWidget();
QStyle *parentStyle = (parent && parent->d_func()->extra) ? (QStyle*)parent->d_func()->extra->style : 0;
// If we have stylesheet on app or parent has stylesheet style, we need
// to be running a proxy
if (!qApp->styleSheet().isEmpty() || qobject_cast<QStyleSheetStyle *>(parentStyle)) {
QStyle *newStyle = parentStyle;
if (q->testAttribute(Qt::WA_SetStyle))
newStyle = new QStyleSheetStyle(origStyle);
else if (QStyleSheetStyle *newProxy = qobject_cast<QStyleSheetStyle *>(parentStyle))
newProxy->ref();
setStyle_helper(newStyle, true);
return;
}
// So, we have no stylesheet on parent/app and we have an empty stylesheet
// we just need our original style back
if (origStyle == (extra ? (QStyle*)extra->style : 0)) // is it any different?
return;
// We could have inherited the proxy from our parent (which has a custom style)
// In such a case we need to start following the application style (i.e revert
// the propagation behavior of QStyleSheetStyle)
if (!q->testAttribute(Qt::WA_SetStyle))
origStyle = 0;
setStyle_helper(origStyle, true);
#endif // QT_NO_STYLE_STYLESHEET
}
#ifdef QT3_SUPPORT
/*!
\overload
Sets the widget's GUI style to \a style using the QStyleFactory.
*/
QStyle* QWidget::setStyle(const QString &style)
{
QStyle *s = QStyleFactory::create(style);
setStyle(s);
return s;
}
#endif
/*!
\fn bool QWidget::isWindow() const
Returns true if the widget is an independent window, otherwise
returns false.
A window is a widget that isn't visually the child of any other
widget and that usually has a frame and a
\l{QWidget::setWindowTitle()}{window title}.
A window can have a \l{QWidget::parentWidget()}{parent widget}.
It will then be grouped with its parent and deleted when the
parent is deleted, minimized when the parent is minimized etc. If
supported by the window manager, it will also have a common
taskbar entry with its parent.
QDialog and QMainWindow widgets are by default windows, even if a
parent widget is specified in the constructor. This behavior is
specified by the Qt::Window flag.
\sa window(), isModal(), parentWidget()
*/
/*!
\property QWidget::modal
\brief whether the widget is a modal widget
This property only makes sense for windows. A modal widget
prevents widgets in all other windows from getting any input.
By default, this property is false.
\sa isWindow(), windowModality, QDialog
*/
/*!
\property QWidget::windowModality
\brief which windows are blocked by the modal widget
\since 4.1
This property only makes sense for windows. A modal widget
prevents widgets in other windows from getting input. The value of
this property controls which windows are blocked when the widget
is visible. Changing this property while the window is visible has
no effect; you must hide() the widget first, then show() it again.
By default, this property is Qt::NonModal.
\sa isWindow(), QWidget::modal, QDialog
*/
Qt::WindowModality QWidget::windowModality() const
{
return static_cast<Qt::WindowModality>(data->window_modality);
}
void QWidget::setWindowModality(Qt::WindowModality windowModality)
{
data->window_modality = windowModality;
// setModal_sys() will be called by setAttribute()
setAttribute(Qt::WA_ShowModal, (data->window_modality != Qt::NonModal));
setAttribute(Qt::WA_SetWindowModality, true);
}
/*!
\fn bool QWidget::underMouse() const
Returns true if the widget is under the mouse cursor; otherwise
returns false.
This value is not updated properly during drag and drop
operations.
\sa enterEvent(), leaveEvent()
*/
/*!
\property QWidget::minimized
\brief whether this widget is minimized (iconified)
This property is only relevant for windows.
By default, this property is false.
\sa showMinimized(), visible, show(), hide(), showNormal(), maximized
*/
bool QWidget::isMinimized() const
{ return data->window_state & Qt::WindowMinimized; }
/*!
Shows the widget minimized, as an icon.
Calling this function only affects \l{isWindow()}{windows}.
\sa showNormal(), showMaximized(), show(), hide(), isVisible(),
isMinimized()
*/
void QWidget::showMinimized()
{
bool isMin = isMinimized();
if (isMin && isVisible())
return;
ensurePolished();
#ifdef QT3_SUPPORT
if (parent())
QApplication::sendPostedEvents(parent(), QEvent::ChildInserted);
#endif
if (!isMin)
setWindowState((windowState() & ~Qt::WindowActive) | Qt::WindowMinimized);
show();
}
/*!
\property QWidget::maximized
\brief whether this widget is maximized
This property is only relevant for windows.
\note Due to limitations on some window systems, this does not always
report the expected results (e.g., if the user on X11 maximizes the
window via the window manager, Qt has no way of distinguishing this
from any other resize). This is expected to improve as window manager
protocols evolve.
By default, this property is false.
\sa windowState(), showMaximized(), visible, show(), hide(), showNormal(), minimized
*/
bool QWidget::isMaximized() const
{ return data->window_state & Qt::WindowMaximized; }
/*!
Returns the current window state. The window state is a OR'ed
combination of Qt::WindowState: Qt::WindowMinimized,
Qt::WindowMaximized, Qt::WindowFullScreen, and Qt::WindowActive.
\sa Qt::WindowState setWindowState()
*/
Qt::WindowStates QWidget::windowState() const
{
return Qt::WindowStates(data->window_state);
}
/*!\internal
The function sets the window state on child widgets similar to
setWindowState(). The difference is that the window state changed
event has the isOverride() flag set. It exists mainly to keep
Q3Workspace working.
*/
void QWidget::overrideWindowState(Qt::WindowStates newstate)
{
QWindowStateChangeEvent e(Qt::WindowStates(data->window_state), true);
data->window_state = newstate;
QApplication::sendEvent(this, &e);
}
/*!
\fn void QWidget::setWindowState(Qt::WindowStates windowState)
Sets the window state to \a windowState. The window state is a OR'ed
combination of Qt::WindowState: Qt::WindowMinimized,
Qt::WindowMaximized, Qt::WindowFullScreen, and Qt::WindowActive.
If the window is not visible (i.e. isVisible() returns false), the
window state will take effect when show() is called. For visible
windows, the change is immediate. For example, to toggle between
full-screen and normal mode, use the following code:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 0
In order to restore and activate a minimized window (while
preserving its maximized and/or full-screen state), use the following:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 1
Calling this function will hide the widget. You must call show() to make
the widget visible again.
\note On some window systems Qt::WindowActive is not immediate, and may be
ignored in certain cases.
When the window state changes, the widget receives a changeEvent()
of type QEvent::WindowStateChange.
\sa Qt::WindowState windowState()
*/
/*!
\property QWidget::fullScreen
\brief whether the widget is shown in full screen mode
A widget in full screen mode occupies the whole screen area and does not
display window decorations, such as a title bar.
By default, this property is false.
\sa windowState(), minimized, maximized
*/
bool QWidget::isFullScreen() const
{ return data->window_state & Qt::WindowFullScreen; }
/*!
Shows the widget in full-screen mode.
Calling this function only affects \l{isWindow()}{windows}.
To return from full-screen mode, call showNormal().
Full-screen mode works fine under Windows, but has certain
problems under X. These problems are due to limitations of the
ICCCM protocol that specifies the communication between X11
clients and the window manager. ICCCM simply does not understand
the concept of non-decorated full-screen windows. Therefore, the
best we can do is to request a borderless window and place and
resize it to fill the entire screen. Depending on the window
manager, this may or may not work. The borderless window is
requested using MOTIF hints, which are at least partially
supported by virtually all modern window managers.
An alternative would be to bypass the window manager entirely and
create a window with the Qt::X11BypassWindowManagerHint flag. This
has other severe problems though, like totally broken keyboard focus
and very strange effects on desktop changes or when the user raises
other windows.
X11 window managers that follow modern post-ICCCM specifications
support full-screen mode properly.
\sa showNormal(), showMaximized(), show(), hide(), isVisible()
*/
void QWidget::showFullScreen()
{
#ifdef Q_WS_MAC
// If the unified toolbar is enabled, we have to disable it before going fullscreen.
QMainWindow *mainWindow = qobject_cast<QMainWindow*>(this);
if (mainWindow && mainWindow->unifiedTitleAndToolBarOnMac()) {
mainWindow->setUnifiedTitleAndToolBarOnMac(false);
QMainWindowLayout *mainLayout = qobject_cast<QMainWindowLayout*>(mainWindow->layout());
mainLayout->activateUnifiedToolbarAfterFullScreen = true;
}
#endif // Q_WS_MAC
ensurePolished();
#ifdef QT3_SUPPORT
if (parent())
QApplication::sendPostedEvents(parent(), QEvent::ChildInserted);
#endif
setWindowState((windowState() & ~(Qt::WindowMinimized | Qt::WindowMaximized))
| Qt::WindowFullScreen);
show();
activateWindow();
}
/*!
Shows the widget maximized.
Calling this function only affects \l{isWindow()}{windows}.
On X11, this function may not work properly with certain window
managers. See the \l{Window Geometry} documentation for an explanation.
\sa setWindowState(), showNormal(), showMinimized(), show(), hide(), isVisible()
*/
void QWidget::showMaximized()
{
ensurePolished();
#ifdef QT3_SUPPORT
if (parent())
QApplication::sendPostedEvents(parent(), QEvent::ChildInserted);
#endif
setWindowState((windowState() & ~(Qt::WindowMinimized | Qt::WindowFullScreen))
| Qt::WindowMaximized);
#ifdef Q_WS_MAC
// If the unified toolbar was enabled before going fullscreen, we have to enable it back.
QMainWindow *mainWindow = qobject_cast<QMainWindow*>(this);
if (mainWindow)
{
QMainWindowLayout *mainLayout = qobject_cast<QMainWindowLayout*>(mainWindow->layout());
if (mainLayout->activateUnifiedToolbarAfterFullScreen) {
mainWindow->setUnifiedTitleAndToolBarOnMac(true);
mainLayout->activateUnifiedToolbarAfterFullScreen = false;
}
}
#endif // Q_WS_MAC
show();
}
/*!
Restores the widget after it has been maximized or minimized.
Calling this function only affects \l{isWindow()}{windows}.
\sa setWindowState(), showMinimized(), showMaximized(), show(), hide(), isVisible()
*/
void QWidget::showNormal()
{
ensurePolished();
#ifdef QT3_SUPPORT
if (parent())
QApplication::sendPostedEvents(parent(), QEvent::ChildInserted);
#endif
setWindowState(windowState() & ~(Qt::WindowMinimized
| Qt::WindowMaximized
| Qt::WindowFullScreen));
#ifdef Q_WS_MAC
// If the unified toolbar was enabled before going fullscreen, we have to enable it back.
QMainWindow *mainWindow = qobject_cast<QMainWindow*>(this);
if (mainWindow)
{
QMainWindowLayout *mainLayout = qobject_cast<QMainWindowLayout*>(mainWindow->layout());
if (mainLayout->activateUnifiedToolbarAfterFullScreen) {
mainWindow->setUnifiedTitleAndToolBarOnMac(true);
mainLayout->activateUnifiedToolbarAfterFullScreen = false;
}
}
#endif // Q_WS_MAC
show();
}
/*!
Returns true if this widget would become enabled if \a ancestor is
enabled; otherwise returns false.
This is the case if neither the widget itself nor every parent up
to but excluding \a ancestor has been explicitly disabled.
isEnabledTo(0) is equivalent to isEnabled().
\sa setEnabled() enabled
*/
bool QWidget::isEnabledTo(QWidget* ancestor) const
{
const QWidget * w = this;
while (!w->testAttribute(Qt::WA_ForceDisabled)
&& !w->isWindow()
&& w->parentWidget()
&& w->parentWidget() != ancestor)
w = w->parentWidget();
return !w->testAttribute(Qt::WA_ForceDisabled);
}
#ifndef QT_NO_ACTION
/*!
Appends the action \a action to this widget's list of actions.
All QWidgets have a list of \l{QAction}s, however they can be
represented graphically in many different ways. The default use of
the QAction list (as returned by actions()) is to create a context
QMenu.
A QWidget should only have one of each action and adding an action
it already has will not cause the same action to be in the widget twice.
The ownership of \a action is not transferred to this QWidget.
\sa removeAction(), insertAction(), actions(), QMenu
*/
void QWidget::addAction(QAction *action)
{
insertAction(0, action);
}
/*!
Appends the actions \a actions to this widget's list of actions.
\sa removeAction(), QMenu, addAction()
*/
void QWidget::addActions(QList<QAction*> actions)
{
for(int i = 0; i < actions.count(); i++)
insertAction(0, actions.at(i));
}
/*!
Inserts the action \a action to this widget's list of actions,
before the action \a before. It appends the action if \a before is 0 or
\a before is not a valid action for this widget.
A QWidget should only have one of each action.
\sa removeAction(), addAction(), QMenu, contextMenuPolicy, actions()
*/
void QWidget::insertAction(QAction *before, QAction *action)
{
if(!action) {
qWarning("QWidget::insertAction: Attempt to insert null action");
return;
}
Q_D(QWidget);
if(d->actions.contains(action))
removeAction(action);
int pos = d->actions.indexOf(before);
if (pos < 0) {
before = 0;
pos = d->actions.size();
}
d->actions.insert(pos, action);
QActionPrivate *apriv = action->d_func();
apriv->widgets.append(this);
QActionEvent e(QEvent::ActionAdded, action, before);
QApplication::sendEvent(this, &e);
}
/*!
Inserts the actions \a actions to this widget's list of actions,
before the action \a before. It appends the action if \a before is 0 or
\a before is not a valid action for this widget.
A QWidget can have at most one of each action.
\sa removeAction(), QMenu, insertAction(), contextMenuPolicy
*/
void QWidget::insertActions(QAction *before, QList<QAction*> actions)
{
for(int i = 0; i < actions.count(); ++i)
insertAction(before, actions.at(i));
}
/*!
Removes the action \a action from this widget's list of actions.
\sa insertAction(), actions(), insertAction()
*/
void QWidget::removeAction(QAction *action)
{
if (!action)
return;
Q_D(QWidget);
QActionPrivate *apriv = action->d_func();
apriv->widgets.removeAll(this);
if (d->actions.removeAll(action)) {
QActionEvent e(QEvent::ActionRemoved, action);
QApplication::sendEvent(this, &e);
}
}
/*!
Returns the (possibly empty) list of this widget's actions.
\sa contextMenuPolicy, insertAction(), removeAction()
*/
QList<QAction*> QWidget::actions() const
{
Q_D(const QWidget);
return d->actions;
}
#endif // QT_NO_ACTION
/*!
\fn bool QWidget::isEnabledToTLW() const
\obsolete
This function is deprecated. It is equivalent to isEnabled()
*/
/*!
\property QWidget::enabled
\brief whether the widget is enabled
In general an enabled widget handles keyboard and mouse events; a disabled
widget does not. An exception is made with \l{QAbstractButton}.
Some widgets display themselves differently when they are
disabled. For example a button might draw its label grayed out. If
your widget needs to know when it becomes enabled or disabled, you
can use the changeEvent() with type QEvent::EnabledChange.
Disabling a widget implicitly disables all its children. Enabling
respectively enables all child widgets unless they have been
explicitly disabled.
By default, this property is true.
\sa isEnabledTo(), QKeyEvent, QMouseEvent, changeEvent()
*/
void QWidget::setEnabled(bool enable)
{
Q_D(QWidget);
setAttribute(Qt::WA_ForceDisabled, !enable);
d->setEnabled_helper(enable);
}
void QWidgetPrivate::setEnabled_helper(bool enable)
{
Q_Q(QWidget);
if (enable && !q->isWindow() && q->parentWidget() && !q->parentWidget()->isEnabled())
return; // nothing we can do
if (enable != q->testAttribute(Qt::WA_Disabled))
return; // nothing to do
q->setAttribute(Qt::WA_Disabled, !enable);
updateSystemBackground();
if (!enable && q->window()->focusWidget() == q) {
bool parentIsEnabled = (!q->parentWidget() || q->parentWidget()->isEnabled());
if (!parentIsEnabled || !q->focusNextChild())
q->clearFocus();
}
Qt::WidgetAttribute attribute = enable ? Qt::WA_ForceDisabled : Qt::WA_Disabled;
for (int i = 0; i < children.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(children.at(i));
if (w && !w->testAttribute(attribute))
w->d_func()->setEnabled_helper(enable);
}
#if defined(Q_WS_X11)
if (q->testAttribute(Qt::WA_SetCursor) || q->isWindow()) {
// enforce the windows behavior of clearing the cursor on
// disabled widgets
qt_x11_enforce_cursor(q);
}
#endif
#if defined(Q_WS_MAC)
setEnabled_helper_sys(enable);
#endif
#ifndef QT_NO_IM
if (q->testAttribute(Qt::WA_InputMethodEnabled) && q->hasFocus()) {
QWidget *focusWidget = effectiveFocusWidget();
QInputContext *qic = focusWidget->d_func()->inputContext();
if (enable) {
if (focusWidget->testAttribute(Qt::WA_InputMethodEnabled))
qic->setFocusWidget(focusWidget);
} else {
qic->reset();
qic->setFocusWidget(0);
}
}
#endif //QT_NO_IM
QEvent e(QEvent::EnabledChange);
QApplication::sendEvent(q, &e);
#ifdef QT3_SUPPORT
q->enabledChange(!enable); // compatibility
#endif
}
/*!
\property QWidget::acceptDrops
\brief whether drop events are enabled for this widget
Setting this property to true announces to the system that this
widget \e may be able to accept drop events.
If the widget is the desktop (windowType() == Qt::Desktop), this may
fail if another application is using the desktop; you can call
acceptDrops() to test if this occurs.
\warning Do not modify this property in a drag and drop event handler.
By default, this property is false.
\sa {Drag and Drop}
*/
bool QWidget::acceptDrops() const
{
return testAttribute(Qt::WA_AcceptDrops);
}
void QWidget::setAcceptDrops(bool on)
{
setAttribute(Qt::WA_AcceptDrops, on);
}
/*!
\fn void QWidget::enabledChange(bool)
\internal
\obsolete
*/
/*!
\fn void QWidget::paletteChange(const QPalette &)
\internal
\obsolete
*/
/*!
\fn void QWidget::fontChange(const QFont &)
\internal
\obsolete
*/
/*!
\fn void QWidget::windowActivationChange(bool)
\internal
\obsolete
*/
/*!
\fn void QWidget::languageChange()
\obsolete
*/
/*!
\fn void QWidget::styleChange(QStyle& style)
\internal
\obsolete
*/
/*!
Disables widget input events if \a disable is true; otherwise
enables input events.
See the \l enabled documentation for more information.
\sa isEnabledTo(), QKeyEvent, QMouseEvent, changeEvent()
*/
void QWidget::setDisabled(bool disable)
{
setEnabled(!disable);
}
/*!
\property QWidget::frameGeometry
\brief geometry of the widget relative to its parent including any
window frame
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
By default, this property contains a value that depends on the user's
platform and screen geometry.
\sa geometry() x() y() pos()
*/
QRect QWidget::frameGeometry() const
{
Q_D(const QWidget);
if (isWindow() && ! (windowType() == Qt::Popup)) {
QRect fs = d->frameStrut();
return QRect(data->crect.x() - fs.left(),
data->crect.y() - fs.top(),
data->crect.width() + fs.left() + fs.right(),
data->crect.height() + fs.top() + fs.bottom());
}
return data->crect;
}
/*!
\property QWidget::x
\brief the x coordinate of the widget relative to its parent including
any window frame
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
By default, this property has a value of 0.
\sa frameGeometry, y, pos
*/
int QWidget::x() const
{
Q_D(const QWidget);
if (isWindow() && ! (windowType() == Qt::Popup))
return data->crect.x() - d->frameStrut().left();
return data->crect.x();
}
/*!
\property QWidget::y
\brief the y coordinate of the widget relative to its parent and
including any window frame
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
By default, this property has a value of 0.
\sa frameGeometry, x, pos
*/
int QWidget::y() const
{
Q_D(const QWidget);
if (isWindow() && ! (windowType() == Qt::Popup))
return data->crect.y() - d->frameStrut().top();
return data->crect.y();
}
/*!
\property QWidget::pos
\brief the position of the widget within its parent widget
If the widget is a window, the position is that of the widget on
the desktop, including its frame.
When changing the position, the widget, if visible, receives a
move event (moveEvent()) immediately. If the widget is not
currently visible, it is guaranteed to receive an event before it
is shown.
By default, this property contains a position that refers to the
origin.
\warning Calling move() or setGeometry() inside moveEvent() can
lead to infinite recursion.
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
\sa frameGeometry, size x(), y()
*/
QPoint QWidget::pos() const
{
Q_D(const QWidget);
if (isWindow() && ! (windowType() == Qt::Popup)) {
QRect fs = d->frameStrut();
return QPoint(data->crect.x() - fs.left(), data->crect.y() - fs.top());
}
return data->crect.topLeft();
}
/*!
\property QWidget::geometry
\brief the geometry of the widget relative to its parent and
excluding the window frame
When changing the geometry, the widget, if visible, receives a
move event (moveEvent()) and/or a resize event (resizeEvent())
immediately. If the widget is not currently visible, it is
guaranteed to receive appropriate events before it is shown.
The size component is adjusted if it lies outside the range
defined by minimumSize() and maximumSize().
\warning Calling setGeometry() inside resizeEvent() or moveEvent()
can lead to infinite recursion.
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
By default, this property contains a value that depends on the user's
platform and screen geometry.
\sa frameGeometry(), rect(), move(), resize(), moveEvent(),
resizeEvent(), minimumSize(), maximumSize()
*/
/*!
\property QWidget::normalGeometry
\brief the geometry of the widget as it will appear when shown as
a normal (not maximized or full screen) top-level widget
For child widgets this property always holds an empty rectangle.
By default, this property contains an empty rectangle.
\sa QWidget::windowState(), QWidget::geometry
*/
/*!
\property QWidget::size
\brief the size of the widget excluding any window frame
If the widget is visible when it is being resized, it receives a resize event
(resizeEvent()) immediately. If the widget is not currently
visible, it is guaranteed to receive an event before it is shown.
The size is adjusted if it lies outside the range defined by
minimumSize() and maximumSize().
By default, this property contains a value that depends on the user's
platform and screen geometry.
\warning Calling resize() or setGeometry() inside resizeEvent() can
lead to infinite recursion.
\note Setting the size to \c{QSize(0, 0)} will cause the widget to not
appear on screen. This also applies to windows.
\sa pos, geometry, minimumSize, maximumSize, resizeEvent(), adjustSize()
*/
/*!
\property QWidget::width
\brief the width of the widget excluding any window frame
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
\note Do not use this function to find the width of a screen on
a \l{QDesktopWidget}{multiple screen desktop}. Read
\l{QDesktopWidget#Screen Geometry}{this note} for details.
By default, this property contains a value that depends on the user's
platform and screen geometry.
\sa geometry, height, size
*/
/*!
\property QWidget::height
\brief the height of the widget excluding any window frame
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
\note Do not use this function to find the height of a screen
on a \l{QDesktopWidget}{multiple screen desktop}. Read
\l{QDesktopWidget#Screen Geometry}{this note} for details.
By default, this property contains a value that depends on the user's
platform and screen geometry.
\sa geometry, width, size
*/
/*!
\property QWidget::rect
\brief the internal geometry of the widget excluding any window
frame
The rect property equals QRect(0, 0, width(), height()).
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
By default, this property contains a value that depends on the user's
platform and screen geometry.
\sa size
*/
QRect QWidget::normalGeometry() const
{
Q_D(const QWidget);
if (!d->extra || !d->extra->topextra)
return QRect();
if (!isMaximized() && !isFullScreen())
return geometry();
return d->topData()->normalGeometry;
}
/*!
\property QWidget::childrenRect
\brief the bounding rectangle of the widget's children
Hidden children are excluded.
By default, for a widget with no children, this property contains a
rectangle with zero width and height located at the origin.
\sa childrenRegion() geometry()
*/
QRect QWidget::childrenRect() const
{
Q_D(const QWidget);
QRect r(0, 0, 0, 0);
for (int i = 0; i < d->children.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(d->children.at(i));
if (w && !w->isWindow() && !w->isHidden())
r |= w->geometry();
}
return r;
}
/*!
\property QWidget::childrenRegion
\brief the combined region occupied by the widget's children
Hidden children are excluded.
By default, for a widget with no children, this property contains an
empty region.
\sa childrenRect() geometry() mask()
*/
QRegion QWidget::childrenRegion() const
{
Q_D(const QWidget);
QRegion r;
for (int i = 0; i < d->children.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(d->children.at(i));
if (w && !w->isWindow() && !w->isHidden()) {
QRegion mask = w->mask();
if (mask.isEmpty())
r |= w->geometry();
else
r |= mask.translated(w->pos());
}
}
return r;
}
/*!
\property QWidget::minimumSize
\brief the widget's minimum size
The widget cannot be resized to a smaller size than the minimum
widget size. The widget's size is forced to the minimum size if
the current size is smaller.
The minimum size set by this function will override the minimum size
defined by QLayout. In order to unset the minimum size, use a
value of \c{QSize(0, 0)}.
By default, this property contains a size with zero width and height.
\sa minimumWidth, minimumHeight, maximumSize, sizeIncrement
*/
QSize QWidget::minimumSize() const
{
Q_D(const QWidget);
return d->extra ? QSize(d->extra->minw, d->extra->minh) : QSize(0, 0);
}
/*!
\property QWidget::maximumSize
\brief the widget's maximum size in pixels
The widget cannot be resized to a larger size than the maximum
widget size.
By default, this property contains a size in which both width and height
have values of 16777215.
\note The definition of the \c QWIDGETSIZE_MAX macro limits the maximum size
of widgets.
\sa maximumWidth, maximumHeight, minimumSize, sizeIncrement
*/
QSize QWidget::maximumSize() const
{
Q_D(const QWidget);
return d->extra ? QSize(d->extra->maxw, d->extra->maxh)
: QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);
}
/*!
\property QWidget::minimumWidth
\brief the widget's minimum width in pixels
This property corresponds to the width held by the \l minimumSize property.
By default, this property has a value of 0.
\sa minimumSize, minimumHeight
*/
/*!
\property QWidget::minimumHeight
\brief the widget's minimum height in pixels
This property corresponds to the height held by the \l minimumSize property.
By default, this property has a value of 0.
\sa minimumSize, minimumWidth
*/
/*!
\property QWidget::maximumWidth
\brief the widget's maximum width in pixels
This property corresponds to the width held by the \l maximumSize property.
By default, this property contains a value of 16777215.
\note The definition of the \c QWIDGETSIZE_MAX macro limits the maximum size
of widgets.
\sa maximumSize, maximumHeight
*/
/*!
\property QWidget::maximumHeight
\brief the widget's maximum height in pixels
This property corresponds to the height held by the \l maximumSize property.
By default, this property contains a value of 16777215.
\note The definition of the \c QWIDGETSIZE_MAX macro limits the maximum size
of widgets.
\sa maximumSize, maximumWidth
*/
/*!
\property QWidget::sizeIncrement
\brief the size increment of the widget
When the user resizes the window, the size will move in steps of
sizeIncrement().width() pixels horizontally and
sizeIncrement.height() pixels vertically, with baseSize() as the
basis. Preferred widget sizes are for non-negative integers \e i
and \e j:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 2
Note that while you can set the size increment for all widgets, it
only affects windows.
By default, this property contains a size with zero width and height.
\warning The size increment has no effect under Windows, and may
be disregarded by the window manager on X11.
\sa size, minimumSize, maximumSize
*/
QSize QWidget::sizeIncrement() const
{
Q_D(const QWidget);
return (d->extra && d->extra->topextra)
? QSize(d->extra->topextra->incw, d->extra->topextra->inch)
: QSize(0, 0);
}
/*!
\property QWidget::baseSize
\brief the base size of the widget
The base size is used to calculate a proper widget size if the
widget defines sizeIncrement().
By default, for a newly-created widget, this property contains a size with
zero width and height.
\sa setSizeIncrement()
*/
QSize QWidget::baseSize() const
{
Q_D(const QWidget);
return (d->extra != 0 && d->extra->topextra != 0)
? QSize(d->extra->topextra->basew, d->extra->topextra->baseh)
: QSize(0, 0);
}
bool QWidgetPrivate::setMinimumSize_helper(int &minw, int &minh)
{
Q_Q(QWidget);
#ifdef Q_WS_QWS
if (q->isWindow()) {
const QRect maxWindowRect = QApplication::desktop()->availableGeometry(QApplication::desktop()->screenNumber(q));
if (!maxWindowRect.isEmpty()) {
// ### This is really just a work-around. Layout shouldn't be
// asking for minimum sizes bigger than the screen.
if (minw > maxWindowRect.width())
minw = maxWindowRect.width();
if (minh > maxWindowRect.height())
minh = maxWindowRect.height();
}
}
#endif
int mw = minw, mh = minh;
if (mw == QWIDGETSIZE_MAX)
mw = 0;
if (mh == QWIDGETSIZE_MAX)
mh = 0;
if (minw > QWIDGETSIZE_MAX || minh > QWIDGETSIZE_MAX) {
qWarning("QWidget::setMinimumSize: (%s/%s) "
"The largest allowed size is (%d,%d)",
q->objectName().toLocal8Bit().data(), q->metaObject()->className(), QWIDGETSIZE_MAX,
QWIDGETSIZE_MAX);
minw = mw = qMin<int>(minw, QWIDGETSIZE_MAX);
minh = mh = qMin<int>(minh, QWIDGETSIZE_MAX);
}
if (minw < 0 || minh < 0) {
qWarning("QWidget::setMinimumSize: (%s/%s) Negative sizes (%d,%d) "
"are not possible",
q->objectName().toLocal8Bit().data(), q->metaObject()->className(), minw, minh);
minw = mw = qMax(minw, 0);
minh = mh = qMax(minh, 0);
}
createExtra();
if (extra->minw == mw && extra->minh == mh)
return false;
extra->minw = mw;
extra->minh = mh;
extra->explicitMinSize = (mw ? Qt::Horizontal : 0) | (mh ? Qt::Vertical : 0);
return true;
}
/*!
\overload
This function corresponds to setMinimumSize(QSize(minw, minh)).
Sets the minimum width to \a minw and the minimum height to \a
minh.
*/
void QWidget::setMinimumSize(int minw, int minh)
{
Q_D(QWidget);
if (!d->setMinimumSize_helper(minw, minh))
return;
if (isWindow())
d->setConstraints_sys();
if (minw > width() || minh > height()) {
bool resized = testAttribute(Qt::WA_Resized);
bool maximized = isMaximized();
resize(qMax(minw,width()), qMax(minh,height()));
setAttribute(Qt::WA_Resized, resized); //not a user resize
if (maximized)
data->window_state = data->window_state | Qt::WindowMaximized;
}
#ifndef QT_NO_GRAPHICSVIEW
if (d->extra) {
if (d->extra->proxyWidget)
d->extra->proxyWidget->setMinimumSize(minw, minh);
}
#endif
d->updateGeometry_helper(d->extra->minw == d->extra->maxw && d->extra->minh == d->extra->maxh);
}
bool QWidgetPrivate::setMaximumSize_helper(int &maxw, int &maxh)
{
Q_Q(QWidget);
if (maxw > QWIDGETSIZE_MAX || maxh > QWIDGETSIZE_MAX) {
qWarning("QWidget::setMaximumSize: (%s/%s) "
"The largest allowed size is (%d,%d)",
q->objectName().toLocal8Bit().data(), q->metaObject()->className(), QWIDGETSIZE_MAX,
QWIDGETSIZE_MAX);
maxw = qMin<int>(maxw, QWIDGETSIZE_MAX);
maxh = qMin<int>(maxh, QWIDGETSIZE_MAX);
}
if (maxw < 0 || maxh < 0) {
qWarning("QWidget::setMaximumSize: (%s/%s) Negative sizes (%d,%d) "
"are not possible",
q->objectName().toLocal8Bit().data(), q->metaObject()->className(), maxw, maxh);
maxw = qMax(maxw, 0);
maxh = qMax(maxh, 0);
}
createExtra();
if (extra->maxw == maxw && extra->maxh == maxh)
return false;
extra->maxw = maxw;
extra->maxh = maxh;
extra->explicitMaxSize = (maxw != QWIDGETSIZE_MAX ? Qt::Horizontal : 0) |
(maxh != QWIDGETSIZE_MAX ? Qt::Vertical : 0);
return true;
}
/*!
\overload
This function corresponds to setMaximumSize(QSize(\a maxw, \a
maxh)). Sets the maximum width to \a maxw and the maximum height
to \a maxh.
*/
void QWidget::setMaximumSize(int maxw, int maxh)
{
Q_D(QWidget);
if (!d->setMaximumSize_helper(maxw, maxh))
return;
if (isWindow())
d->setConstraints_sys();
if (maxw < width() || maxh < height()) {
bool resized = testAttribute(Qt::WA_Resized);
resize(qMin(maxw,width()), qMin(maxh,height()));
setAttribute(Qt::WA_Resized, resized); //not a user resize
}
#ifndef QT_NO_GRAPHICSVIEW
if (d->extra) {
if (d->extra->proxyWidget)
d->extra->proxyWidget->setMaximumSize(maxw, maxh);
}
#endif
d->updateGeometry_helper(d->extra->minw == d->extra->maxw && d->extra->minh == d->extra->maxh);
}
/*!
\overload
Sets the x (width) size increment to \a w and the y (height) size
increment to \a h.
*/
void QWidget::setSizeIncrement(int w, int h)
{
Q_D(QWidget);
d->createTLExtra();
QTLWExtra* x = d->topData();
if (x->incw == w && x->inch == h)
return;
x->incw = w;
x->inch = h;
if (isWindow())
d->setConstraints_sys();
}
/*!
\overload
This corresponds to setBaseSize(QSize(\a basew, \a baseh)). Sets
the widgets base size to width \a basew and height \a baseh.
*/
void QWidget::setBaseSize(int basew, int baseh)
{
Q_D(QWidget);
d->createTLExtra();
QTLWExtra* x = d->topData();
if (x->basew == basew && x->baseh == baseh)
return;
x->basew = basew;
x->baseh = baseh;
if (isWindow())
d->setConstraints_sys();
}
/*!
Sets both the minimum and maximum sizes of the widget to \a s,
thereby preventing it from ever growing or shrinking.
This will override the default size constraints set by QLayout.
To remove constraints, set the size to QWIDGETSIZE_MAX.
Alternatively, if you want the widget to have a
fixed size based on its contents, you can call
QLayout::setSizeConstraint(QLayout::SetFixedSize);
\sa maximumSize, minimumSize
*/
void QWidget::setFixedSize(const QSize & s)
{
setFixedSize(s.width(), s.height());
}
/*!
\fn void QWidget::setFixedSize(int w, int h)
\overload
Sets the width of the widget to \a w and the height to \a h.
*/
void QWidget::setFixedSize(int w, int h)
{
Q_D(QWidget);
#ifdef Q_WS_QWS
// temporary fix for 4.3.x.
// Should move the embedded spesific contraints in setMinimumSize_helper into QLayout
int tmpW = w;
int tmpH = h;
bool minSizeSet = d->setMinimumSize_helper(tmpW, tmpH);
#else
bool minSizeSet = d->setMinimumSize_helper(w, h);
#endif
bool maxSizeSet = d->setMaximumSize_helper(w, h);
if (!minSizeSet && !maxSizeSet)
return;
if (isWindow())
d->setConstraints_sys();
else
d->updateGeometry_helper(true);
if (w != QWIDGETSIZE_MAX || h != QWIDGETSIZE_MAX)
resize(w, h);
}
void QWidget::setMinimumWidth(int w)
{
Q_D(QWidget);
d->createExtra();
uint expl = d->extra->explicitMinSize | (w ? Qt::Horizontal : 0);
setMinimumSize(w, minimumSize().height());
d->extra->explicitMinSize = expl;
}
void QWidget::setMinimumHeight(int h)
{
Q_D(QWidget);
d->createExtra();
uint expl = d->extra->explicitMinSize | (h ? Qt::Vertical : 0);
setMinimumSize(minimumSize().width(), h);
d->extra->explicitMinSize = expl;
}
void QWidget::setMaximumWidth(int w)
{
Q_D(QWidget);
d->createExtra();
uint expl = d->extra->explicitMaxSize | (w == QWIDGETSIZE_MAX ? 0 : Qt::Horizontal);
setMaximumSize(w, maximumSize().height());
d->extra->explicitMaxSize = expl;
}
void QWidget::setMaximumHeight(int h)
{
Q_D(QWidget);
d->createExtra();
uint expl = d->extra->explicitMaxSize | (h == QWIDGETSIZE_MAX ? 0 : Qt::Vertical);
setMaximumSize(maximumSize().width(), h);
d->extra->explicitMaxSize = expl;
}
/*!
Sets both the minimum and maximum width of the widget to \a w
without changing the heights. Provided for convenience.
\sa sizeHint() minimumSize() maximumSize() setFixedSize()
*/
void QWidget::setFixedWidth(int w)
{
Q_D(QWidget);
d->createExtra();
uint explMin = d->extra->explicitMinSize | Qt::Horizontal;
uint explMax = d->extra->explicitMaxSize | Qt::Horizontal;
setMinimumSize(w, minimumSize().height());
setMaximumSize(w, maximumSize().height());
d->extra->explicitMinSize = explMin;
d->extra->explicitMaxSize = explMax;
}
/*!
Sets both the minimum and maximum heights of the widget to \a h
without changing the widths. Provided for convenience.
\sa sizeHint() minimumSize() maximumSize() setFixedSize()
*/
void QWidget::setFixedHeight(int h)
{
Q_D(QWidget);
d->createExtra();
uint explMin = d->extra->explicitMinSize | Qt::Vertical;
uint explMax = d->extra->explicitMaxSize | Qt::Vertical;
setMinimumSize(minimumSize().width(), h);
setMaximumSize(maximumSize().width(), h);
d->extra->explicitMinSize = explMin;
d->extra->explicitMaxSize = explMax;
}
/*!
Translates the widget coordinate \a pos to the coordinate system
of \a parent. The \a parent must not be 0 and must be a parent
of the calling widget.
\sa mapFrom() mapToParent() mapToGlobal() underMouse()
*/
QPoint QWidget::mapTo(QWidget * parent, const QPoint & pos) const
{
QPoint p = pos;
if (parent) {
const QWidget * w = this;
while (w != parent) {
Q_ASSERT_X(w, "QWidget::mapTo(QWidget *parent, const QPoint &pos)",
"parent must be in parent hierarchy");
p = w->mapToParent(p);
w = w->parentWidget();
}
}
return p;
}
/*!
Translates the widget coordinate \a pos from the coordinate system
of \a parent to this widget's coordinate system. The \a parent
must not be 0 and must be a parent of the calling widget.
\sa mapTo() mapFromParent() mapFromGlobal() underMouse()
*/
QPoint QWidget::mapFrom(QWidget * parent, const QPoint & pos) const
{
QPoint p(pos);
if (parent) {
const QWidget * w = this;
while (w != parent) {
Q_ASSERT_X(w, "QWidget::mapFrom(QWidget *parent, const QPoint &pos)",
"parent must be in parent hierarchy");
p = w->mapFromParent(p);
w = w->parentWidget();
}
}
return p;
}
/*!
Translates the widget coordinate \a pos to a coordinate in the
parent widget.
Same as mapToGlobal() if the widget has no parent.
\sa mapFromParent() mapTo() mapToGlobal() underMouse()
*/
QPoint QWidget::mapToParent(const QPoint &pos) const
{
return pos + data->crect.topLeft();
}
/*!
Translates the parent widget coordinate \a pos to widget
coordinates.
Same as mapFromGlobal() if the widget has no parent.
\sa mapToParent() mapFrom() mapFromGlobal() underMouse()
*/
QPoint QWidget::mapFromParent(const QPoint &pos) const
{
return pos - data->crect.topLeft();
}
/*!
Returns the window for this widget, i.e. the next ancestor widget
that has (or could have) a window-system frame.
If the widget is a window, the widget itself is returned.
Typical usage is changing the window title:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 3
\sa isWindow()
*/
QWidget *QWidget::window() const
{
QWidget *w = (QWidget *)this;
QWidget *p = w->parentWidget();
while (!w->isWindow() && p) {
w = p;
p = p->parentWidget();
}
return w;
}
/*!
\since 4.4
Returns the native parent for this widget, i.e. the next ancestor widget
that has a system identifier, or 0 if it does not have any native parent.
\sa effectiveWinId()
*/
QWidget *QWidget::nativeParentWidget() const
{
QWidget *parent = parentWidget();
while (parent && !parent->internalWinId())
parent = parent->parentWidget();
return parent;
}
/*! \fn QWidget *QWidget::topLevelWidget() const
\obsolete
Use window() instead.
*/
#ifdef QT3_SUPPORT
/*!
Returns the color role used for painting the widget's background.
Use QPalette(backgroundRole(()) instead.
*/
Qt::BackgroundMode QWidget::backgroundMode() const
{
if (testAttribute(Qt::WA_NoSystemBackground))
return Qt::NoBackground;
switch(backgroundRole()) {
case QPalette::WindowText:
return Qt::PaletteForeground;
case QPalette::Button:
return Qt::PaletteButton;
case QPalette::Light:
return Qt::PaletteLight;
case QPalette::Midlight:
return Qt::PaletteMidlight;
case QPalette::Dark:
return Qt::PaletteDark;
case QPalette::Mid:
return Qt::PaletteMid;
case QPalette::Text:
return Qt::PaletteText;
case QPalette::BrightText:
return Qt::PaletteBrightText;
case QPalette::Base:
return Qt::PaletteBase;
case QPalette::Window:
return Qt::PaletteBackground;
case QPalette::Shadow:
return Qt::PaletteShadow;
case QPalette::Highlight:
return Qt::PaletteHighlight;
case QPalette::HighlightedText:
return Qt::PaletteHighlightedText;
case QPalette::ButtonText:
return Qt::PaletteButtonText;
case QPalette::Link:
return Qt::PaletteLink;
case QPalette::LinkVisited:
return Qt::PaletteLinkVisited;
default:
break;
}
return Qt::NoBackground;
}
/*!
\fn void QWidget::setBackgroundMode(Qt::BackgroundMode
widgetBackground, Qt::BackgroundMode paletteBackground)
Sets the color role used for painting the widget's background to
background mode \a widgetBackground. The \a paletteBackground mode
parameter is ignored.
*/
void QWidget::setBackgroundMode(Qt::BackgroundMode m, Qt::BackgroundMode)
{
Q_D(QWidget);
if(m == Qt::NoBackground) {
setAttribute(Qt::WA_NoSystemBackground, true);
return;
}
setAttribute(Qt::WA_NoSystemBackground, false);
d->fg_role = QPalette::NoRole;
QPalette::ColorRole role = d->bg_role;
switch(m) {
case Qt::FixedColor:
case Qt::FixedPixmap:
break;
case Qt::PaletteForeground:
role = QPalette::WindowText;
break;
case Qt::PaletteButton:
role = QPalette::Button;
break;
case Qt::PaletteLight:
role = QPalette::Light;
break;
case Qt::PaletteMidlight:
role = QPalette::Midlight;
break;
case Qt::PaletteDark:
role = QPalette::Dark;
break;
case Qt::PaletteMid:
role = QPalette::Mid;
break;
case Qt::PaletteText:
role = QPalette::Text;
break;
case Qt::PaletteBrightText:
role = QPalette::BrightText;
break;
case Qt::PaletteBase:
role = QPalette::Base;
break;
case Qt::PaletteBackground:
role = QPalette::Window;
break;
case Qt::PaletteShadow:
role = QPalette::Shadow;
break;
case Qt::PaletteHighlight:
role = QPalette::Highlight;
break;
case Qt::PaletteHighlightedText:
role = QPalette::HighlightedText;
break;
case Qt::PaletteButtonText:
role = QPalette::ButtonText;
break;
case Qt::PaletteLink:
role = QPalette::Link;
break;
case Qt::PaletteLinkVisited:
role = QPalette::LinkVisited;
break;
case Qt::X11ParentRelative:
d->fg_role = role = QPalette::NoRole;
default:
break;
}
setBackgroundRole(role);
}
/*!
The widget mapper is no longer part of the public API.
*/
QT3_SUPPORT QWidgetMapper *QWidget::wmapper() { return QWidgetPrivate::mapper; }
#endif
/*!
Returns the background role of the widget.
The background role defines the brush from the widget's \l palette that
is used to render the background.
If no explicit background role is set, the widget inherts its parent
widget's background role.
\sa setBackgroundRole(), foregroundRole()
*/
QPalette::ColorRole QWidget::backgroundRole() const
{
const QWidget *w = this;
do {
QPalette::ColorRole role = w->d_func()->bg_role;
if (role != QPalette::NoRole)
return role;
if (w->isWindow() || w->windowType() == Qt::SubWindow)
break;
w = w->parentWidget();
} while (w);
return QPalette::Window;
}
/*!
Sets the background role of the widget to \a role.
The background role defines the brush from the widget's \l palette that
is used to render the background.
If \a role is QPalette::NoRole, then the widget inherits its
parent's background role.
Note that styles are free to choose any color from the palette.
You can modify the palette or set a style sheet if you don't
achieve the result you want with setBackgroundRole().
\sa backgroundRole(), foregroundRole()
*/
void QWidget::setBackgroundRole(QPalette::ColorRole role)
{
Q_D(QWidget);
d->bg_role = role;
d->updateSystemBackground();
d->propagatePaletteChange();
d->updateIsOpaque();
}
/*!
Returns the foreground role.
The foreground role defines the color from the widget's \l palette that
is used to draw the foreground.
If no explicit foreground role is set, the function returns a role
that contrasts with the background role.
\sa setForegroundRole(), backgroundRole()
*/
QPalette::ColorRole QWidget::foregroundRole() const
{
Q_D(const QWidget);
QPalette::ColorRole rl = QPalette::ColorRole(d->fg_role);
if (rl != QPalette::NoRole)
return rl;
QPalette::ColorRole role = QPalette::WindowText;
switch (backgroundRole()) {
case QPalette::Button:
role = QPalette::ButtonText;
break;
case QPalette::Base:
role = QPalette::Text;
break;
case QPalette::Dark:
case QPalette::Shadow:
role = QPalette::Light;
break;
case QPalette::Highlight:
role = QPalette::HighlightedText;
break;
case QPalette::ToolTipBase:
role = QPalette::ToolTipText;
break;
default:
;
}
return role;
}
/*!
Sets the foreground role of the widget to \a role.
The foreground role defines the color from the widget's \l palette that
is used to draw the foreground.
If \a role is QPalette::NoRole, the widget uses a foreground role
that contrasts with the background role.
Note that styles are free to choose any color from the palette.
You can modify the palette or set a style sheet if you don't
achieve the result you want with setForegroundRole().
\sa foregroundRole(), backgroundRole()
*/
void QWidget::setForegroundRole(QPalette::ColorRole role)
{
Q_D(QWidget);
d->fg_role = role;
d->updateSystemBackground();
d->propagatePaletteChange();
}
/*!
\property QWidget::palette
\brief the widget's palette
This property describes the widget's palette. The palette is used by the
widget's style when rendering standard components, and is available as a
means to ensure that custom widgets can maintain consistency with the
native platform's look and feel. It's common that different platforms, or
different styles, have different palettes.
When you assign a new palette to a widget, the color roles from this
palette are combined with the widget's default palette to form the
widget's final palette. The palette entry for the widget's background role
is used to fill the widget's background (see QWidget::autoFillBackground),
and the foreground role initializes QPainter's pen.
The default depends on the system environment. QApplication maintains a
system/theme palette which serves as a default for all widgets. There may
also be special palette defaults for certain types of widgets (e.g., on
Windows XP and Vista, all classes that derive from QMenuBar have a special
default palette). You can also define default palettes for widgets
yourself by passing a custom palette and the name of a widget to
QApplication::setPalette(). Finally, the style always has the option of
polishing the palette as it's assigned (see QStyle::polish()).
QWidget propagates explicit palette roles from parent to child. If you
assign a brush or color to a specific role on a palette and assign that
palette to a widget, that role will propagate to all the widget's
children, overriding any system defaults for that role. Note that palettes
by default don't propagate to windows (see isWindow()) unless the
Qt::WA_WindowPropagation attribute is enabled.
QWidget's palette propagation is similar to its font propagation.
The current style, which is used to render the content of all standard Qt
widgets, is free to choose colors and brushes from the widget palette, or
in some cases, to ignore the palette (partially, or completely). In
particular, certain styles like GTK style, Mac style, Windows XP, and
Vista style, depend on third party APIs to render the content of widgets,
and these styles typically do not follow the palette. Because of this,
assigning roles to a widget's palette is not guaranteed to change the
appearance of the widget. Instead, you may choose to apply a \l
styleSheet. You can refer to our Knowledge Base article
\l{http://qt.nokia.com/developer/knowledgebase/22}{here} for more
information.
\warning Do not use this function in conjunction with \l{Qt Style Sheets}.
When using style sheets, the palette of a widget can be customized using
the "color", "background-color", "selection-color",
"selection-background-color" and "alternate-background-color".
\sa QApplication::palette(), QWidget::font()
*/
const QPalette &QWidget::palette() const
{
if (!isEnabled()) {
data->pal.setCurrentColorGroup(QPalette::Disabled);
} else if ((!isVisible() || isActiveWindow())
#if defined(Q_OS_WIN) && !defined(Q_WS_WINCE)
&& !QApplicationPrivate::isBlockedByModal(const_cast<QWidget *>(this))
#endif
) {
data->pal.setCurrentColorGroup(QPalette::Active);
} else {
#ifdef Q_WS_MAC
extern bool qt_mac_can_clickThrough(const QWidget *); //qwidget_mac.cpp
if (qt_mac_can_clickThrough(this))
data->pal.setCurrentColorGroup(QPalette::Active);
else
#endif
data->pal.setCurrentColorGroup(QPalette::Inactive);
}
return data->pal;
}
void QWidget::setPalette(const QPalette &palette)
{
Q_D(QWidget);
setAttribute(Qt::WA_SetPalette, palette.resolve() != 0);
// Determine which palette is inherited from this widget's ancestors and
// QApplication::palette, resolve this against \a palette (attributes from
// the inherited palette are copied over this widget's palette). Then
// propagate this palette to this widget's children.
QPalette naturalPalette = d->naturalWidgetPalette(d->inheritedPaletteResolveMask);
QPalette resolvedPalette = palette.resolve(naturalPalette);
d->setPalette_helper(resolvedPalette);
}
/*!
\internal
Returns the palette that the widget \a w inherits from its ancestors and
QApplication::palette. \a inheritedMask is the combination of the widget's
ancestors palette request masks (i.e., which attributes from the parent
widget's palette are implicitly imposed on this widget by the user). Note
that this font does not take into account the palette set on \a w itself.
*/
QPalette QWidgetPrivate::naturalWidgetPalette(uint inheritedMask) const
{
Q_Q(const QWidget);
QPalette naturalPalette = QApplication::palette(q);
if (!q->testAttribute(Qt::WA_StyleSheet)
&& (!q->isWindow() || q->testAttribute(Qt::WA_WindowPropagation)
#ifndef QT_NO_GRAPHICSVIEW
|| (extra && extra->proxyWidget)
#endif //QT_NO_GRAPHICSVIEW
)) {
if (QWidget *p = q->parentWidget()) {
if (!p->testAttribute(Qt::WA_StyleSheet)) {
if (!naturalPalette.isCopyOf(QApplication::palette())) {
QPalette inheritedPalette = p->palette();
inheritedPalette.resolve(inheritedMask);
naturalPalette = inheritedPalette.resolve(naturalPalette);
} else {
naturalPalette = p->palette();
}
}
}
#ifndef QT_NO_GRAPHICSVIEW
else if (extra && extra->proxyWidget) {
QPalette inheritedPalette = extra->proxyWidget->palette();
inheritedPalette.resolve(inheritedMask);
naturalPalette = inheritedPalette.resolve(naturalPalette);
}
#endif //QT_NO_GRAPHICSVIEW
}
naturalPalette.resolve(0);
return naturalPalette;
}
/*!
\internal
Determine which palette is inherited from this widget's ancestors and
QApplication::palette, resolve this against this widget's palette
(attributes from the inherited palette are copied over this widget's
palette). Then propagate this palette to this widget's children.
*/
void QWidgetPrivate::resolvePalette()
{
QPalette naturalPalette = naturalWidgetPalette(inheritedPaletteResolveMask);
QPalette resolvedPalette = data.pal.resolve(naturalPalette);
setPalette_helper(resolvedPalette);
}
void QWidgetPrivate::setPalette_helper(const QPalette &palette)
{
Q_Q(QWidget);
if (data.pal == palette && data.pal.resolve() == palette.resolve())
return;
data.pal = palette;
updateSystemBackground();
propagatePaletteChange();
updateIsOpaque();
q->update();
updateIsOpaque();
}
/*!
\property QWidget::font
\brief the font currently set for the widget
This property describes the widget's requested font. The font is used by
the widget's style when rendering standard components, and is available as
a means to ensure that custom widgets can maintain consistency with the
native platform's look and feel. It's common that different platforms, or
different styles, define different fonts for an application.
When you assign a new font to a widget, the properties from this font are
combined with the widget's default font to form the widget's final
font. You can call fontInfo() to get a copy of the widget's final
font. The final font is also used to initialize QPainter's font.
The default depends on the system environment. QApplication maintains a
system/theme font which serves as a default for all widgets. There may
also be special font defaults for certain types of widgets. You can also
define default fonts for widgets yourself by passing a custom font and the
name of a widget to QApplication::setFont(). Finally, the font is matched
against Qt's font database to find the best match.
QWidget propagates explicit font properties from parent to child. If you
change a specific property on a font and assign that font to a widget,
that property will propagate to all the widget's children, overriding any
system defaults for that property. Note that fonts by default don't
propagate to windows (see isWindow()) unless the Qt::WA_WindowPropagation
attribute is enabled.
QWidget's font propagation is similar to its palette propagation.
The current style, which is used to render the content of all standard Qt
widgets, is free to choose to use the widget font, or in some cases, to
ignore it (partially, or completely). In particular, certain styles like
GTK style, Mac style, Windows XP, and Vista style, apply special
modifications to the widget font to match the platform's native look and
feel. Because of this, assigning properties to a widget's font is not
guaranteed to change the appearance of the widget. Instead, you may choose
to apply a \l styleSheet.
\note If \l{Qt Style Sheets} are used on the same widget as setFont(),
style sheets will take precedence if the settings conflict.
\sa fontInfo(), fontMetrics()
*/
void QWidget::setFont(const QFont &font)
{
Q_D(QWidget);
#ifndef QT_NO_STYLE_STYLESHEET
const QStyleSheetStyle* style;
if (d->extra && (style = qobject_cast<const QStyleSheetStyle*>(d->extra->style))) {
style->saveWidgetFont(this, font);
}
#endif
setAttribute(Qt::WA_SetFont, font.resolve() != 0);
// Determine which font is inherited from this widget's ancestors and
// QApplication::font, resolve this against \a font (attributes from the
// inherited font are copied over). Then propagate this font to this
// widget's children.
QFont naturalFont = d->naturalWidgetFont(d->inheritedFontResolveMask);
QFont resolvedFont = font.resolve(naturalFont);
d->setFont_helper(resolvedFont);
}
/*
\internal
Returns the font that the widget \a w inherits from its ancestors and
QApplication::font. \a inheritedMask is the combination of the widget's
ancestors font request masks (i.e., which attributes from the parent
widget's font are implicitly imposed on this widget by the user). Note
that this font does not take into account the font set on \a w itself.
### Stylesheet has a different font propagation mechanism. When a stylesheet
is applied, fonts are not propagated anymore
*/
QFont QWidgetPrivate::naturalWidgetFont(uint inheritedMask) const
{
Q_Q(const QWidget);
QFont naturalFont = QApplication::font(q);
if (!q->testAttribute(Qt::WA_StyleSheet)
&& (!q->isWindow() || q->testAttribute(Qt::WA_WindowPropagation)
#ifndef QT_NO_GRAPHICSVIEW
|| (extra && extra->proxyWidget)
#endif //QT_NO_GRAPHICSVIEW
)) {
if (QWidget *p = q->parentWidget()) {
if (!p->testAttribute(Qt::WA_StyleSheet)) {
if (!naturalFont.isCopyOf(QApplication::font())) {
QFont inheritedFont = p->font();
inheritedFont.resolve(inheritedMask);
naturalFont = inheritedFont.resolve(naturalFont);
} else {
naturalFont = p->font();
}
}
}
#ifndef QT_NO_GRAPHICSVIEW
else if (extra && extra->proxyWidget) {
QFont inheritedFont = extra->proxyWidget->font();
inheritedFont.resolve(inheritedMask);
naturalFont = inheritedFont.resolve(naturalFont);
}
#endif //QT_NO_GRAPHICSVIEW
}
naturalFont.resolve(0);
return naturalFont;
}
/*!
\internal
Determine which font is implicitly imposed on this widget by its ancestors
and QApplication::font, resolve this against its own font (attributes from
the implicit font are copied over). Then propagate this font to this
widget's children.
*/
void QWidgetPrivate::resolveFont()
{
QFont naturalFont = naturalWidgetFont(inheritedFontResolveMask);
QFont resolvedFont = data.fnt.resolve(naturalFont);
setFont_helper(resolvedFont);
}
/*!
\internal
Assign \a font to this widget, and propagate it to all children, except
style sheet widgets (handled differently) and windows that don't enable
window propagation. \a implicitMask is the union of all ancestor widgets'
font request masks, and determines which attributes from this widget's
font should propagate.
*/
void QWidgetPrivate::updateFont(const QFont &font)
{
Q_Q(QWidget);
#ifndef QT_NO_STYLE_STYLESHEET
const QStyleSheetStyle* cssStyle;
cssStyle = extra ? qobject_cast<const QStyleSheetStyle*>(extra->style) : 0;
#endif
#ifdef QT3_SUPPORT
QFont old = data.fnt;
#endif
data.fnt = QFont(font, q);
#if defined(Q_WS_X11)
// make sure the font set on this widget is associated with the correct screen
data.fnt.x11SetScreen(xinfo.screen());
#endif
// Combine new mask with natural mask and propagate to children.
#ifndef QT_NO_GRAPHICSVIEW
if (!q->parentWidget() && extra && extra->proxyWidget) {
QGraphicsProxyWidget *p = extra->proxyWidget;
inheritedFontResolveMask = p->d_func()->inheritedFontResolveMask | p->font().resolve();
} else
#endif //QT_NO_GRAPHICSVIEW
if (q->isWindow() && !q->testAttribute(Qt::WA_WindowPropagation)) {
inheritedFontResolveMask = 0;
}
uint newMask = data.fnt.resolve() | inheritedFontResolveMask;
for (int i = 0; i < children.size(); ++i) {
QWidget *w = qobject_cast<QWidget*>(children.at(i));
if (w) {
if (0) {
#ifndef QT_NO_STYLE_STYLESHEET
} else if (w->testAttribute(Qt::WA_StyleSheet)) {
// Style sheets follow a different font propagation scheme.
if (cssStyle)
cssStyle->updateStyleSheetFont(w);
#endif
} else if ((!w->isWindow() || w->testAttribute(Qt::WA_WindowPropagation))) {
// Propagate font changes.
QWidgetPrivate *wd = w->d_func();
wd->inheritedFontResolveMask = newMask;
wd->resolveFont();
}
}
}
#ifndef QT_NO_STYLE_STYLESHEET
if (cssStyle) {
cssStyle->updateStyleSheetFont(q);
}
#endif
QEvent e(QEvent::FontChange);
QApplication::sendEvent(q, &e);
#ifdef QT3_SUPPORT
q->fontChange(old);
#endif
}
void QWidgetPrivate::setLayoutDirection_helper(Qt::LayoutDirection direction)
{
Q_Q(QWidget);
if ( (direction == Qt::RightToLeft) == q->testAttribute(Qt::WA_RightToLeft))
return;
q->setAttribute(Qt::WA_RightToLeft, (direction == Qt::RightToLeft));
if (!children.isEmpty()) {
for (int i = 0; i < children.size(); ++i) {
QWidget *w = qobject_cast<QWidget*>(children.at(i));
if (w && !w->isWindow() && !w->testAttribute(Qt::WA_SetLayoutDirection))
w->d_func()->setLayoutDirection_helper(direction);
}
}
QEvent e(QEvent::LayoutDirectionChange);
QApplication::sendEvent(q, &e);
}
void QWidgetPrivate::resolveLayoutDirection()
{
Q_Q(const QWidget);
if (!q->testAttribute(Qt::WA_SetLayoutDirection))
setLayoutDirection_helper(q->isWindow() ? QApplication::layoutDirection() : q->parentWidget()->layoutDirection());
}
/*!
\property QWidget::layoutDirection
\brief the layout direction for this widget
By default, this property is set to Qt::LeftToRight.
When the layout direction is set on a widget, it will propagate to
the widget's children, but not to a child that is a window and not
to a child for which setLayoutDirection() has been explicitly
called. Also, child widgets added \e after setLayoutDirection()
has been called for the parent do not inherit the parent's layout
direction.
This method no longer affects text layout direction since Qt 4.7.
\sa QApplication::layoutDirection
*/
void QWidget::setLayoutDirection(Qt::LayoutDirection direction)
{
Q_D(QWidget);
if (direction == Qt::LayoutDirectionAuto) {
unsetLayoutDirection();
return;
}
setAttribute(Qt::WA_SetLayoutDirection);
d->setLayoutDirection_helper(direction);
}
Qt::LayoutDirection QWidget::layoutDirection() const
{
return testAttribute(Qt::WA_RightToLeft) ? Qt::RightToLeft : Qt::LeftToRight;
}
void QWidget::unsetLayoutDirection()
{
Q_D(QWidget);
setAttribute(Qt::WA_SetLayoutDirection, false);
d->resolveLayoutDirection();
}
/*!
\fn QFontMetrics QWidget::fontMetrics() const
Returns the font metrics for the widget's current font.
Equivalent to QFontMetrics(widget->font()).
\sa font(), fontInfo(), setFont()
*/
/*!
\fn QFontInfo QWidget::fontInfo() const
Returns the font info for the widget's current font.
Equivalent to QFontInto(widget->font()).
\sa font(), fontMetrics(), setFont()
*/
/*!
\property QWidget::cursor
\brief the cursor shape for this widget
The mouse cursor will assume this shape when it's over this
widget. See the \link Qt::CursorShape list of predefined cursor
objects\endlink for a range of useful shapes.
An editor widget might use an I-beam cursor:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 6
If no cursor has been set, or after a call to unsetCursor(), the
parent's cursor is used.
By default, this property contains a cursor with the Qt::ArrowCursor
shape.
Some underlying window implementations will reset the cursor if it
leaves a widget even if the mouse is grabbed. If you want to have
a cursor set for all widgets, even when outside the window, consider
QApplication::setOverrideCursor().
\sa QApplication::setOverrideCursor()
*/
#ifndef QT_NO_CURSOR
QCursor QWidget::cursor() const
{
Q_D(const QWidget);
if (testAttribute(Qt::WA_SetCursor))
return (d->extra && d->extra->curs)
? *d->extra->curs
: QCursor(Qt::ArrowCursor);
if (isWindow() || !parentWidget())
return QCursor(Qt::ArrowCursor);
return parentWidget()->cursor();
}
void QWidget::setCursor(const QCursor &cursor)
{
Q_D(QWidget);
// On Mac we must set the cursor even if it is the ArrowCursor.
#if !defined(Q_WS_MAC) && !defined(Q_WS_QWS)
if (cursor.shape() != Qt::ArrowCursor
|| (d->extra && d->extra->curs))
#endif
{
d->createExtra();
QCursor *newCursor = new QCursor(cursor);
delete d->extra->curs;
d->extra->curs = newCursor;
}
setAttribute(Qt::WA_SetCursor);
d->setCursor_sys(cursor);
QEvent event(QEvent::CursorChange);
QApplication::sendEvent(this, &event);
}
void QWidget::unsetCursor()
{
Q_D(QWidget);
if (d->extra) {
delete d->extra->curs;
d->extra->curs = 0;
}
if (!isWindow())
setAttribute(Qt::WA_SetCursor, false);
d->unsetCursor_sys();
QEvent event(QEvent::CursorChange);
QApplication::sendEvent(this, &event);
}
#endif
/*!
\enum QWidget::RenderFlag
This enum describes how to render the widget when calling QWidget::render().
\value DrawWindowBackground If you enable this option, the widget's background
is rendered into the target even if autoFillBackground is not set. By default,
this option is enabled.
\value DrawChildren If you enable this option, the widget's children
are rendered recursively into the target. By default, this option is enabled.
\value IgnoreMask If you enable this option, the widget's QWidget::mask()
is ignored when rendering into the target. By default, this option is disabled.
\since 4.3
*/
/*!
\since 4.3
Renders the \a sourceRegion of this widget into the \a target
using \a renderFlags to determine how to render. Rendering
starts at \a targetOffset in the \a target. For example:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 7
If \a sourceRegion is a null region, this function will use QWidget::rect() as
the region, i.e. the entire widget.
Ensure that you call QPainter::end() for the \a target device's
active painter (if any) before rendering. For example:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 8
\note To obtain the contents of an OpenGL widget, use QGLWidget::grabFrameBuffer()
or QGLWidget::renderPixmap() instead.
*/
void QWidget::render(QPaintDevice *target, const QPoint &targetOffset,
const QRegion &sourceRegion, RenderFlags renderFlags)
{
d_func()->render(target, targetOffset, sourceRegion, renderFlags, false);
}
/*!
\overload
Renders the widget into the \a painter's QPainter::device().
Transformations and settings applied to the \a painter will be used
when rendering.
\note The \a painter must be active. On Mac OS X the widget will be
rendered into a QPixmap and then drawn by the \a painter.
\sa QPainter::device()
*/
void QWidget::render(QPainter *painter, const QPoint &targetOffset,
const QRegion &sourceRegion, RenderFlags renderFlags)
{
if (!painter) {
qWarning("QWidget::render: Null pointer to painter");
return;
}
if (!painter->isActive()) {
qWarning("QWidget::render: Cannot render with an inactive painter");
return;
}
const qreal opacity = painter->opacity();
if (qFuzzyIsNull(opacity))
return; // Fully transparent.
Q_D(QWidget);
const bool inRenderWithPainter = d->extra && d->extra->inRenderWithPainter;
const QRegion toBePainted = !inRenderWithPainter ? d->prepareToRender(sourceRegion, renderFlags)
: sourceRegion;
if (toBePainted.isEmpty())
return;
if (!d->extra)
d->createExtra();
d->extra->inRenderWithPainter = true;
#ifdef Q_WS_MAC
d->render_helper(painter, targetOffset, toBePainted, renderFlags);
#else
QPaintEngine *engine = painter->paintEngine();
Q_ASSERT(engine);
QPaintEnginePrivate *enginePriv = engine->d_func();
Q_ASSERT(enginePriv);
QPaintDevice *target = engine->paintDevice();
Q_ASSERT(target);
// Render via a pixmap when dealing with non-opaque painters or printers.
if (!inRenderWithPainter && (opacity < 1.0 || (target->devType() == QInternal::Printer))) {
d->render_helper(painter, targetOffset, toBePainted, renderFlags);
d->extra->inRenderWithPainter = false;
return;
}
// Set new shared painter.
QPainter *oldPainter = d->sharedPainter();
d->setSharedPainter(painter);
// Save current system clip, viewport and transform,
const QTransform oldTransform = enginePriv->systemTransform;
const QRegion oldSystemClip = enginePriv->systemClip;
const QRegion oldSystemViewport = enginePriv->systemViewport;
// This ensures that all painting triggered by render() is clipped to the current engine clip.
if (painter->hasClipping()) {
const QRegion painterClip = painter->deviceTransform().map(painter->clipRegion());
enginePriv->setSystemViewport(oldSystemClip.isEmpty() ? painterClip : oldSystemClip & painterClip);
} else {
enginePriv->setSystemViewport(oldSystemClip);
}
render(target, targetOffset, toBePainted, renderFlags);
// Restore system clip, viewport and transform.
enginePriv->systemClip = oldSystemClip;
enginePriv->setSystemViewport(oldSystemViewport);
enginePriv->setSystemTransform(oldTransform);
// Restore shared painter.
d->setSharedPainter(oldPainter);
#endif
d->extra->inRenderWithPainter = false;
}
/*!
\brief The graphicsEffect function returns a pointer to the
widget's graphics effect.
If the widget has no graphics effect, 0 is returned.
\since 4.6
\sa setGraphicsEffect()
*/
#ifndef QT_NO_GRAPHICSEFFECT
QGraphicsEffect *QWidget::graphicsEffect() const
{
Q_D(const QWidget);
return d->graphicsEffect;
}
#endif //QT_NO_GRAPHICSEFFECT
/*!
\brief The setGraphicsEffect function is for setting the widget's graphics effect.
Sets \a effect as the widget's effect. If there already is an effect installed
on this widget, QWidget will delete the existing effect before installing
the new \a effect.
If \a effect is the installed on a different widget, setGraphicsEffect() will remove
the effect from the widget and install it on this widget.
QWidget takes ownership of \a effect.
\note This function will apply the effect on itself and all its children.
\note Graphics effects are not supported on Mac, so they will not cause any difference
to the rendering of the widget.
\since 4.6
\sa graphicsEffect()
*/
#ifndef QT_NO_GRAPHICSEFFECT
void QWidget::setGraphicsEffect(QGraphicsEffect *effect)
{
Q_D(QWidget);
if (d->graphicsEffect == effect)
return;
if (d->graphicsEffect) {
d->invalidateBuffer(rect());
delete d->graphicsEffect;
d->graphicsEffect = 0;
}
if (effect) {
// Set new effect.
QGraphicsEffectSourcePrivate *sourced = new QWidgetEffectSourcePrivate(this);
QGraphicsEffectSource *source = new QGraphicsEffectSource(*sourced);
d->graphicsEffect = effect;
effect->d_func()->setGraphicsEffectSource(source);
update();
}
d->updateIsOpaque();
}
#endif //QT_NO_GRAPHICSEFFECT
bool QWidgetPrivate::isAboutToShow() const
{
if (data.in_show)
return true;
Q_Q(const QWidget);
if (q->isHidden())
return false;
// The widget will be shown if any of its ancestors are about to show.
QWidget *parent = q->parentWidget();
return parent ? parent->d_func()->isAboutToShow() : false;
}
QRegion QWidgetPrivate::prepareToRender(const QRegion ®ion, QWidget::RenderFlags renderFlags)
{
Q_Q(QWidget);
const bool isVisible = q->isVisible();
// Make sure the widget is laid out correctly.
if (!isVisible && !isAboutToShow()) {
QWidget *topLevel = q->window();
(void)topLevel->d_func()->topData(); // Make sure we at least have top-data.
topLevel->ensurePolished();
// Invalidate the layout of hidden ancestors (incl. myself) and pretend
// they're not explicitly hidden.
QWidget *widget = q;
QWidgetList hiddenWidgets;
while (widget) {
if (widget->isHidden()) {
widget->setAttribute(Qt::WA_WState_Hidden, false);
hiddenWidgets.append(widget);
if (!widget->isWindow() && widget->parentWidget()->d_func()->layout)
widget->d_func()->updateGeometry_helper(true);
}
widget = widget->parentWidget();
}
// Activate top-level layout.
if (topLevel->d_func()->layout)
topLevel->d_func()->layout->activate();
// Adjust size if necessary.
QTLWExtra *topLevelExtra = topLevel->d_func()->maybeTopData();
if (topLevelExtra && !topLevelExtra->sizeAdjusted
&& !topLevel->testAttribute(Qt::WA_Resized)) {
topLevel->adjustSize();
topLevel->setAttribute(Qt::WA_Resized, false);
}
// Activate child layouts.
topLevel->d_func()->activateChildLayoutsRecursively();
// We're not cheating with WA_WState_Hidden anymore.
for (int i = 0; i < hiddenWidgets.size(); ++i) {
QWidget *widget = hiddenWidgets.at(i);
widget->setAttribute(Qt::WA_WState_Hidden);
if (!widget->isWindow() && widget->parentWidget()->d_func()->layout)
widget->parentWidget()->d_func()->layout->invalidate();
}
} else if (isVisible) {
q->window()->d_func()->sendPendingMoveAndResizeEvents(true, true);
}
// Calculate the region to be painted.
QRegion toBePainted = !region.isEmpty() ? region : QRegion(q->rect());
if (!(renderFlags & QWidget::IgnoreMask) && extra && extra->hasMask)
toBePainted &= extra->mask;
return toBePainted;
}
void QWidgetPrivate::render_helper(QPainter *painter, const QPoint &targetOffset, const QRegion &toBePainted,
QWidget::RenderFlags renderFlags)
{
Q_ASSERT(painter);
Q_ASSERT(!toBePainted.isEmpty());
Q_Q(QWidget);
#ifndef Q_WS_MAC
const QTransform originalTransform = painter->worldTransform();
const bool useDeviceCoordinates = originalTransform.isScaling();
if (!useDeviceCoordinates) {
#endif
// Render via a pixmap.
const QRect rect = toBePainted.boundingRect();
const QSize size = rect.size();
if (size.isNull())
return;
QPixmap pixmap(size);
if (!(renderFlags & QWidget::DrawWindowBackground) || !isOpaque)
pixmap.fill(Qt::transparent);
q->render(&pixmap, QPoint(), toBePainted, renderFlags);
const bool restore = !(painter->renderHints() & QPainter::SmoothPixmapTransform);
painter->setRenderHints(QPainter::SmoothPixmapTransform, true);
painter->drawPixmap(targetOffset, pixmap);
if (restore)
painter->setRenderHints(QPainter::SmoothPixmapTransform, false);
#ifndef Q_WS_MAC
} else {
// Render via a pixmap in device coordinates (to avoid pixmap scaling).
QTransform transform = originalTransform;
transform.translate(targetOffset.x(), targetOffset.y());
QPaintDevice *device = painter->device();
Q_ASSERT(device);
// Calculate device rect.
const QRectF rect(toBePainted.boundingRect());
QRect deviceRect = transform.mapRect(QRectF(0, 0, rect.width(), rect.height())).toAlignedRect();
deviceRect &= QRect(0, 0, device->width(), device->height());
QPixmap pixmap(deviceRect.size());
pixmap.fill(Qt::transparent);
// Create a pixmap device coordinate painter.
QPainter pixmapPainter(&pixmap);
pixmapPainter.setRenderHints(painter->renderHints());
transform *= QTransform::fromTranslate(-deviceRect.x(), -deviceRect.y());
pixmapPainter.setTransform(transform);
q->render(&pixmapPainter, QPoint(), toBePainted, renderFlags);
pixmapPainter.end();
// And then draw the pixmap.
painter->setTransform(QTransform());
painter->drawPixmap(deviceRect.topLeft(), pixmap);
painter->setTransform(originalTransform);
}
#endif
}
void QWidgetPrivate::drawWidget(QPaintDevice *pdev, const QRegion &rgn, const QPoint &offset, int flags,
QPainter *sharedPainter, QWidgetBackingStore *backingStore)
{
if (rgn.isEmpty())
return;
#if defined(Q_WS_MAC) && defined(QT_MAC_USE_COCOA)
if (qt_mac_clearDirtyOnWidgetInsideDrawWidget)
dirtyOnWidget = QRegion();
// We disable the rendering of QToolBar in the backingStore if
// it's supposed to be in the unified toolbar on Mac OS X.
if (backingStore && isInUnifiedToolbar)
return;
#endif // Q_WS_MAC && QT_MAC_USE_COCOA
Q_Q(QWidget);
#if !defined(QT_NO_GRAPHICSEFFECT) && !defined(Q_WS_MAC)
if (graphicsEffect && graphicsEffect->isEnabled()) {
QGraphicsEffectSource *source = graphicsEffect->d_func()->source;
QWidgetEffectSourcePrivate *sourced = static_cast<QWidgetEffectSourcePrivate *>
(source->d_func());
if (!sourced->context) {
QWidgetPaintContext context(pdev, rgn, offset, flags, sharedPainter, backingStore);
sourced->context = &context;
if (!sharedPainter) {
QPaintEngine *paintEngine = pdev->paintEngine();
paintEngine->d_func()->systemClip = rgn.translated(offset);
QPainter p(pdev);
p.translate(offset);
context.painter = &p;
graphicsEffect->draw(&p);
paintEngine->d_func()->systemClip = QRegion();
} else {
context.painter = sharedPainter;
if (sharedPainter->worldTransform() != sourced->lastEffectTransform) {
sourced->invalidateCache();
sourced->lastEffectTransform = sharedPainter->worldTransform();
}
sharedPainter->save();
sharedPainter->translate(offset);
graphicsEffect->draw(sharedPainter);
sharedPainter->restore();
}
sourced->context = 0;
return;
}
}
#endif //QT_NO_GRAFFICSEFFECT
const bool asRoot = flags & DrawAsRoot;
const bool alsoOnScreen = flags & DrawPaintOnScreen;
const bool recursive = flags & DrawRecursive;
const bool alsoInvisible = flags & DrawInvisible;
Q_ASSERT(sharedPainter ? sharedPainter->isActive() : true);
QRegion toBePainted(rgn);
if (asRoot && !alsoInvisible)
toBePainted &= clipRect(); //(rgn & visibleRegion());
if (!(flags & DontSubtractOpaqueChildren))
subtractOpaqueChildren(toBePainted, q->rect());
if (!toBePainted.isEmpty()) {
bool onScreen = paintOnScreen();
if (!onScreen || alsoOnScreen) {
//update the "in paint event" flag
if (q->testAttribute(Qt::WA_WState_InPaintEvent))
qWarning("QWidget::repaint: Recursive repaint detected");
q->setAttribute(Qt::WA_WState_InPaintEvent);
//clip away the new area
#ifndef QT_NO_PAINT_DEBUG
bool flushed = QWidgetBackingStore::flushPaint(q, toBePainted);
#endif
QPaintEngine *paintEngine = pdev->paintEngine();
if (paintEngine) {
setRedirected(pdev, -offset);
#ifdef Q_WS_MAC
// (Alien support) Special case for Mac when redirecting: If the paint device
// is of the Widget type we need to set WA_WState_InPaintEvent since painting
// outside the paint event is not supported on QWidgets. The attributeis
// restored further down.
if (pdev->devType() == QInternal::Widget)
static_cast<QWidget *>(pdev)->setAttribute(Qt::WA_WState_InPaintEvent);
#endif
if (sharedPainter)
paintEngine->d_func()->systemClip = toBePainted;
else
paintEngine->d_func()->systemRect = q->data->crect;
//paint the background
if ((asRoot || q->autoFillBackground() || onScreen || q->testAttribute(Qt::WA_StyledBackground))
&& !q->testAttribute(Qt::WA_OpaquePaintEvent) && !q->testAttribute(Qt::WA_NoSystemBackground)) {
QPainter p(q);
paintBackground(&p, toBePainted, (asRoot || onScreen) ? flags | DrawAsRoot : 0);
}
if (!sharedPainter)
paintEngine->d_func()->systemClip = toBePainted.translated(offset);
if (!onScreen && !asRoot && !isOpaque && q->testAttribute(Qt::WA_TintedBackground)) {
QPainter p(q);
QColor tint = q->palette().window().color();
tint.setAlphaF(qreal(.6));
p.fillRect(toBePainted.boundingRect(), tint);
}
}
#if 0
qDebug() << "painting" << q << "opaque ==" << isOpaque();
qDebug() << "clipping to" << toBePainted << "location == " << offset
<< "geometry ==" << QRect(q->mapTo(q->window(), QPoint(0, 0)), q->size());
#endif
//actually send the paint event
QPaintEvent e(toBePainted);
QCoreApplication::sendSpontaneousEvent(q, &e);
#if !defined(Q_WS_QWS) && !defined(Q_WS_QPA)
if (backingStore && !onScreen && !asRoot && (q->internalWinId() || !q->nativeParentWidget()->isWindow()))
backingStore->markDirtyOnScreen(toBePainted, q, offset);
#endif
//restore
if (paintEngine) {
#ifdef Q_WS_MAC
if (pdev->devType() == QInternal::Widget)
static_cast<QWidget *>(pdev)->setAttribute(Qt::WA_WState_InPaintEvent, false);
#endif
restoreRedirected();
if (!sharedPainter)
paintEngine->d_func()->systemRect = QRect();
else
paintEngine->d_func()->currentClipWidget = 0;
paintEngine->d_func()->systemClip = QRegion();
}
q->setAttribute(Qt::WA_WState_InPaintEvent, false);
if (q->paintingActive() && !q->testAttribute(Qt::WA_PaintOutsidePaintEvent))
qWarning("QWidget::repaint: It is dangerous to leave painters active on a widget outside of the PaintEvent");
if (paintEngine && paintEngine->autoDestruct()) {
delete paintEngine;
}
#ifndef QT_NO_PAINT_DEBUG
if (flushed)
QWidgetBackingStore::unflushPaint(q, toBePainted);
#endif
} else if (q->isWindow()) {
QPaintEngine *engine = pdev->paintEngine();
if (engine) {
QPainter p(pdev);
p.setClipRegion(toBePainted);
const QBrush bg = q->palette().brush(QPalette::Window);
if (bg.style() == Qt::TexturePattern)
p.drawTiledPixmap(q->rect(), bg.texture());
else
p.fillRect(q->rect(), bg);
if (engine->autoDestruct())
delete engine;
}
}
}
if (recursive && !children.isEmpty()) {
paintSiblingsRecursive(pdev, children, children.size() - 1, rgn, offset, flags & ~DrawAsRoot
#ifdef Q_BACKINGSTORE_SUBSURFACES
, q->windowSurface()
#endif
, sharedPainter, backingStore);
}
}
void QWidgetPrivate::render(QPaintDevice *target, const QPoint &targetOffset,
const QRegion &sourceRegion, QWidget::RenderFlags renderFlags,
bool readyToRender)
{
if (!target) {
qWarning("QWidget::render: null pointer to paint device");
return;
}
const bool inRenderWithPainter = extra && extra->inRenderWithPainter;
QRegion paintRegion = !inRenderWithPainter && !readyToRender
? prepareToRender(sourceRegion, renderFlags)
: sourceRegion;
if (paintRegion.isEmpty())
return;
#ifndef Q_WS_MAC
QPainter *oldSharedPainter = inRenderWithPainter ? sharedPainter() : 0;
// Use the target's shared painter if set (typically set when doing
// "other->render(widget);" in the widget's paintEvent.
if (target->devType() == QInternal::Widget) {
QWidgetPrivate *targetPrivate = static_cast<QWidget *>(target)->d_func();
if (targetPrivate->extra && targetPrivate->extra->inRenderWithPainter) {
QPainter *targetPainter = targetPrivate->sharedPainter();
if (targetPainter && targetPainter->isActive())
setSharedPainter(targetPainter);
}
}
#endif
// Use the target's redirected device if set and adjust offset and paint
// region accordingly. This is typically the case when people call render
// from the paintEvent.
QPoint offset = targetOffset;
offset -= paintRegion.boundingRect().topLeft();
QPoint redirectionOffset;
QPaintDevice *redirected = 0;
if (target->devType() == QInternal::Widget)
redirected = static_cast<QWidget *>(target)->d_func()->redirected(&redirectionOffset);
if (!redirected)
redirected = QPainter::redirected(target, &redirectionOffset);
if (redirected) {
target = redirected;
offset -= redirectionOffset;
}
if (!inRenderWithPainter) { // Clip handled by shared painter (in qpainter.cpp).
if (QPaintEngine *targetEngine = target->paintEngine()) {
const QRegion targetSystemClip = targetEngine->systemClip();
if (!targetSystemClip.isEmpty())
paintRegion &= targetSystemClip.translated(-offset);
}
}
// Set backingstore flags.
int flags = DrawPaintOnScreen | DrawInvisible;
if (renderFlags & QWidget::DrawWindowBackground)
flags |= DrawAsRoot;
if (renderFlags & QWidget::DrawChildren)
flags |= DrawRecursive;
else
flags |= DontSubtractOpaqueChildren;
#if defined(Q_WS_QWS) || defined(Q_WS_QPA)
flags |= DontSetCompositionMode;
#endif
if (target->devType() == QInternal::Printer) {
QPainter p(target);
render_helper(&p, targetOffset, paintRegion, renderFlags);
return;
}
#ifndef Q_WS_MAC
// Render via backingstore.
drawWidget(target, paintRegion, offset, flags, sharedPainter());
// Restore shared painter.
if (oldSharedPainter)
setSharedPainter(oldSharedPainter);
#else
// Render via backingstore (no shared painter).
drawWidget(target, paintRegion, offset, flags, 0);
#endif
}
void QWidgetPrivate::paintSiblingsRecursive(QPaintDevice *pdev, const QObjectList& siblings, int index, const QRegion &rgn,
const QPoint &offset, int flags
#ifdef Q_BACKINGSTORE_SUBSURFACES
, const QWindowSurface *currentSurface
#endif
, QPainter *sharedPainter, QWidgetBackingStore *backingStore)
{
QWidget *w = 0;
QRect boundingRect;
bool dirtyBoundingRect = true;
const bool exludeOpaqueChildren = (flags & DontDrawOpaqueChildren);
const bool excludeNativeChildren = (flags & DontDrawNativeChildren);
do {
QWidget *x = qobject_cast<QWidget*>(siblings.at(index));
if (x && !(exludeOpaqueChildren && x->d_func()->isOpaque) && !x->isHidden() && !x->isWindow()
&& !(excludeNativeChildren && x->internalWinId())) {
if (dirtyBoundingRect) {
boundingRect = rgn.boundingRect();
dirtyBoundingRect = false;
}
if (qRectIntersects(boundingRect, x->d_func()->effectiveRectFor(x->data->crect))) {
#ifdef Q_BACKINGSTORE_SUBSURFACES
if (x->windowSurface() == currentSurface)
#endif
{
w = x;
break;
}
}
}
--index;
} while (index >= 0);
if (!w)
return;
QWidgetPrivate *wd = w->d_func();
const QPoint widgetPos(w->data->crect.topLeft());
const bool hasMask = wd->extra && wd->extra->hasMask && !wd->graphicsEffect;
if (index > 0) {
QRegion wr(rgn);
if (wd->isOpaque)
wr -= hasMask ? wd->extra->mask.translated(widgetPos) : w->data->crect;
paintSiblingsRecursive(pdev, siblings, --index, wr, offset, flags
#ifdef Q_BACKINGSTORE_SUBSURFACES
, currentSurface
#endif
, sharedPainter, backingStore);
}
if (w->updatesEnabled()
#ifndef QT_NO_GRAPHICSVIEW
&& (!w->d_func()->extra || !w->d_func()->extra->proxyWidget)
#endif //QT_NO_GRAPHICSVIEW
) {
QRegion wRegion(rgn);
wRegion &= wd->effectiveRectFor(w->data->crect);
wRegion.translate(-widgetPos);
if (hasMask)
wRegion &= wd->extra->mask;
wd->drawWidget(pdev, wRegion, offset + widgetPos, flags, sharedPainter, backingStore);
}
}
#ifndef QT_NO_GRAPHICSEFFECT
QRectF QWidgetEffectSourcePrivate::boundingRect(Qt::CoordinateSystem system) const
{
if (system != Qt::DeviceCoordinates)
return m_widget->rect();
if (!context) {
// Device coordinates without context not yet supported.
qWarning("QGraphicsEffectSource::boundingRect: Not yet implemented, lacking device context");
return QRectF();
}
return context->painter->worldTransform().mapRect(m_widget->rect());
}
void QWidgetEffectSourcePrivate::draw(QPainter *painter)
{
if (!context || context->painter != painter) {
m_widget->render(painter);
return;
}
// The region saved in the context is neither clipped to the rect
// nor the mask, so we have to clip it here before calling drawWidget.
QRegion toBePainted = context->rgn;
toBePainted &= m_widget->rect();
QWidgetPrivate *wd = qt_widget_private(m_widget);
if (wd->extra && wd->extra->hasMask)
toBePainted &= wd->extra->mask;
wd->drawWidget(context->pdev, toBePainted, context->offset, context->flags,
context->sharedPainter, context->backingStore);
}
QPixmap QWidgetEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QPoint *offset,
QGraphicsEffect::PixmapPadMode mode) const
{
const bool deviceCoordinates = (system == Qt::DeviceCoordinates);
if (!context && deviceCoordinates) {
// Device coordinates without context not yet supported.
qWarning("QGraphicsEffectSource::pixmap: Not yet implemented, lacking device context");
return QPixmap();
}
QPoint pixmapOffset;
QRectF sourceRect = m_widget->rect();
if (deviceCoordinates) {
const QTransform &painterTransform = context->painter->worldTransform();
sourceRect = painterTransform.mapRect(sourceRect);
pixmapOffset = painterTransform.map(pixmapOffset);
}
QRect effectRect;
if (mode == QGraphicsEffect::PadToEffectiveBoundingRect)
effectRect = m_widget->graphicsEffect()->boundingRectFor(sourceRect).toAlignedRect();
else if (mode == QGraphicsEffect::PadToTransparentBorder)
effectRect = sourceRect.adjusted(-1, -1, 1, 1).toAlignedRect();
else
effectRect = sourceRect.toAlignedRect();
if (offset)
*offset = effectRect.topLeft();
pixmapOffset -= effectRect.topLeft();
QPixmap pixmap(effectRect.size());
pixmap.fill(Qt::transparent);
m_widget->render(&pixmap, pixmapOffset, QRegion(), QWidget::DrawChildren);
return pixmap;
}
#endif //QT_NO_GRAPHICSEFFECT
#ifndef QT_NO_GRAPHICSVIEW
/*!
\internal
Finds the nearest widget embedded in a graphics proxy widget along the chain formed by this
widget and its ancestors. The search starts at \a origin (inclusive).
If successful, the function returns the proxy that embeds the widget, or 0 if no embedded
widget was found.
*/
QGraphicsProxyWidget * QWidgetPrivate::nearestGraphicsProxyWidget(const QWidget *origin)
{
if (origin) {
QWExtra *extra = origin->d_func()->extra;
if (extra && extra->proxyWidget)
return extra->proxyWidget;
return nearestGraphicsProxyWidget(origin->parentWidget());
}
return 0;
}
#endif
/*!
\property QWidget::locale
\brief the widget's locale
\since 4.3
As long as no special locale has been set, this is either
the parent's locale or (if this widget is a top level widget),
the default locale.
If the widget displays dates or numbers, these should be formatted
using the widget's locale.
\sa QLocale QLocale::setDefault()
*/
void QWidgetPrivate::setLocale_helper(const QLocale &loc, bool forceUpdate)
{
Q_Q(QWidget);
if (locale == loc && !forceUpdate)
return;
locale = loc;
if (!children.isEmpty()) {
for (int i = 0; i < children.size(); ++i) {
QWidget *w = qobject_cast<QWidget*>(children.at(i));
if (!w)
continue;
if (w->testAttribute(Qt::WA_SetLocale))
continue;
if (w->isWindow() && !w->testAttribute(Qt::WA_WindowPropagation))
continue;
w->d_func()->setLocale_helper(loc, forceUpdate);
}
}
QEvent e(QEvent::LocaleChange);
QApplication::sendEvent(q, &e);
}
void QWidget::setLocale(const QLocale &locale)
{
Q_D(QWidget);
setAttribute(Qt::WA_SetLocale);
d->setLocale_helper(locale);
}
QLocale QWidget::locale() const
{
Q_D(const QWidget);
return d->locale;
}
void QWidgetPrivate::resolveLocale()
{
Q_Q(const QWidget);
if (!q->testAttribute(Qt::WA_SetLocale)) {
setLocale_helper(q->isWindow()
? QLocale()
: q->parentWidget()->locale());
}
}
void QWidget::unsetLocale()
{
Q_D(QWidget);
setAttribute(Qt::WA_SetLocale, false);
d->resolveLocale();
}
static QString constructWindowTitleFromFilePath(const QString &filePath)
{
QFileInfo fi(filePath);
QString windowTitle = fi.fileName() + QLatin1String("[*]");
#ifndef Q_WS_MAC
QString appName = QApplication::applicationName();
if (!appName.isEmpty())
windowTitle += QLatin1Char(' ') + QChar(0x2014) + QLatin1Char(' ') + appName;
#endif
return windowTitle;
}
/*!
\property QWidget::windowTitle
\brief the window title (caption)
This property only makes sense for top-level widgets, such as
windows and dialogs. If no caption has been set, the title is based of the
\l windowFilePath. If neither of these is set, then the title is
an empty string.
If you use the \l windowModified mechanism, the window title must
contain a "[*]" placeholder, which indicates where the '*' should
appear. Normally, it should appear right after the file name
(e.g., "document1.txt[*] - Text Editor"). If the \l
windowModified property is false (the default), the placeholder
is simply removed.
\sa windowIcon, windowIconText, windowModified, windowFilePath
*/
QString QWidget::windowTitle() const
{
Q_D(const QWidget);
if (d->extra && d->extra->topextra) {
if (!d->extra->topextra->caption.isEmpty())
return d->extra->topextra->caption;
if (!d->extra->topextra->filePath.isEmpty())
return constructWindowTitleFromFilePath(d->extra->topextra->filePath);
}
return QString();
}
/*!
Returns a modified window title with the [*] place holder
replaced according to the rules described in QWidget::setWindowTitle
This function assumes that "[*]" can be quoted by another
"[*]", so it will replace two place holders by one and
a single last one by either "*" or nothing depending on
the modified flag.
\internal
*/
QString qt_setWindowTitle_helperHelper(const QString &title, const QWidget *widget)
{
Q_ASSERT(widget);
#ifdef QT_EVAL
extern QString qt_eval_adapt_window_title(const QString &title);
QString cap = qt_eval_adapt_window_title(title);
#else
QString cap = title;
#endif
if (cap.isEmpty())
return cap;
QLatin1String placeHolder("[*]");
int placeHolderLength = 3; // QLatin1String doesn't have length()
int index = cap.indexOf(placeHolder);
// here the magic begins
while (index != -1) {
index += placeHolderLength;
int count = 1;
while (cap.indexOf(placeHolder, index) == index) {
++count;
index += placeHolderLength;
}
if (count%2) { // odd number of [*] -> replace last one
int lastIndex = cap.lastIndexOf(placeHolder, index - 1);
if (widget->isWindowModified()
&& widget->style()->styleHint(QStyle::SH_TitleBar_ModifyNotification, 0, widget))
cap.replace(lastIndex, 3, QWidget::tr("*"));
else
cap.remove(lastIndex, 3);
}
index = cap.indexOf(placeHolder, index);
}
cap.replace(QLatin1String("[*][*]"), placeHolder);
return cap;
}
void QWidgetPrivate::setWindowTitle_helper(const QString &title)
{
Q_Q(QWidget);
if (q->testAttribute(Qt::WA_WState_Created))
setWindowTitle_sys(qt_setWindowTitle_helperHelper(title, q));
}
void QWidgetPrivate::setWindowIconText_helper(const QString &title)
{
Q_Q(QWidget);
if (q->testAttribute(Qt::WA_WState_Created))
setWindowIconText_sys(qt_setWindowTitle_helperHelper(title, q));
}
void QWidget::setWindowIconText(const QString &iconText)
{
if (QWidget::windowIconText() == iconText)
return;
Q_D(QWidget);
d->topData()->iconText = iconText;
d->setWindowIconText_helper(iconText);
QEvent e(QEvent::IconTextChange);
QApplication::sendEvent(this, &e);
}
void QWidget::setWindowTitle(const QString &title)
{
if (QWidget::windowTitle() == title && !title.isEmpty() && !title.isNull())
return;
Q_D(QWidget);
d->topData()->caption = title;
d->setWindowTitle_helper(title);
QEvent e(QEvent::WindowTitleChange);
QApplication::sendEvent(this, &e);
}
/*!
\property QWidget::windowIcon
\brief the widget's icon
This property only makes sense for windows. If no icon
has been set, windowIcon() returns the application icon
(QApplication::windowIcon()).
\sa windowIconText, windowTitle
*/
QIcon QWidget::windowIcon() const
{
const QWidget *w = this;
while (w) {
const QWidgetPrivate *d = w->d_func();
if (d->extra && d->extra->topextra && d->extra->topextra->icon)
return *d->extra->topextra->icon;
w = w->parentWidget();
}
return QApplication::windowIcon();
}
void QWidgetPrivate::setWindowIcon_helper()
{
QEvent e(QEvent::WindowIconChange);
QApplication::sendEvent(q_func(), &e);
for (int i = 0; i < children.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(children.at(i));
if (w && !w->isWindow())
QApplication::sendEvent(w, &e);
}
}
void QWidget::setWindowIcon(const QIcon &icon)
{
Q_D(QWidget);
setAttribute(Qt::WA_SetWindowIcon, !icon.isNull());
d->createTLExtra();
if (!d->extra->topextra->icon)
d->extra->topextra->icon = new QIcon();
*d->extra->topextra->icon = icon;
delete d->extra->topextra->iconPixmap;
d->extra->topextra->iconPixmap = 0;
d->setWindowIcon_sys();
d->setWindowIcon_helper();
}
/*!
\property QWidget::windowIconText
\brief the widget's icon text
This property only makes sense for windows. If no icon
text has been set, this functions returns an empty string.
\sa windowIcon, windowTitle
*/
QString QWidget::windowIconText() const
{
Q_D(const QWidget);
return (d->extra && d->extra->topextra) ? d->extra->topextra->iconText : QString();
}
/*!
\property QWidget::windowFilePath
\since 4.4
\brief the file path associated with a widget
This property only makes sense for windows. It associates a file path with
a window. If you set the file path, but have not set the window title, Qt
sets the window title to contain a string created using the following
components.
On Mac OS X:
\list
\o The file name of the specified path, obtained using QFileInfo::fileName().
\endlist
On Windows and X11:
\list
\o The file name of the specified path, obtained using QFileInfo::fileName().
\o An optional \c{*} character, if the \l windowModified property is set.
\o The \c{0x2014} unicode character, padded either side by spaces.
\o The application name, obtained from the application's
\l{QCoreApplication::}{applicationName} property.
\endlist
If the window title is set at any point, then the window title takes precedence and
will be shown instead of the file path string.
Additionally, on Mac OS X, this has an added benefit that it sets the
\l{http://developer.apple.com/documentation/UserExperience/Conceptual/OSXHIGuidelines/XHIGWindows/chapter_17_section_3.html}{proxy icon}
for the window, assuming that the file path exists.
If no file path is set, this property contains an empty string.
By default, this property contains an empty string.
\sa windowTitle, windowIcon
*/
QString QWidget::windowFilePath() const
{
Q_D(const QWidget);
return (d->extra && d->extra->topextra) ? d->extra->topextra->filePath : QString();
}
void QWidget::setWindowFilePath(const QString &filePath)
{
if (filePath == windowFilePath())
return;
Q_D(QWidget);
d->createTLExtra();
d->extra->topextra->filePath = filePath;
d->setWindowFilePath_helper(filePath);
}
void QWidgetPrivate::setWindowFilePath_helper(const QString &filePath)
{
if (extra->topextra && extra->topextra->caption.isEmpty()) {
#ifdef Q_WS_MAC
setWindowTitle_helper(QFileInfo(filePath).fileName());
#else
Q_Q(QWidget);
Q_UNUSED(filePath);
setWindowTitle_helper(q->windowTitle());
#endif
}
#ifdef Q_WS_MAC
setWindowFilePath_sys(filePath);
#endif
}
/*!
Returns the window's role, or an empty string.
\sa windowIcon, windowTitle
*/
QString QWidget::windowRole() const
{
Q_D(const QWidget);
return (d->extra && d->extra->topextra) ? d->extra->topextra->role : QString();
}
/*!
Sets the window's role to \a role. This only makes sense for
windows on X11.
*/
void QWidget::setWindowRole(const QString &role)
{
#if defined(Q_WS_X11)
Q_D(QWidget);
d->topData()->role = role;
d->setWindowRole();
#else
Q_UNUSED(role)
#endif
}
/*!
\property QWidget::mouseTracking
\brief whether mouse tracking is enabled for the widget
If mouse tracking is disabled (the default), the widget only
receives mouse move events when at least one mouse button is
pressed while the mouse is being moved.
If mouse tracking is enabled, the widget receives mouse move
events even if no buttons are pressed.
\sa mouseMoveEvent()
*/
/*!
Sets the widget's focus proxy to widget \a w. If \a w is 0, the
function resets this widget to have no focus proxy.
Some widgets can "have focus", but create a child widget, such as
QLineEdit, to actually handle the focus. In this case, the widget
can set the line edit to be its focus proxy.
setFocusProxy() sets the widget which will actually get focus when
"this widget" gets it. If there is a focus proxy, setFocus() and
hasFocus() operate on the focus proxy.
\sa focusProxy()
*/
void QWidget::setFocusProxy(QWidget * w)
{
Q_D(QWidget);
if (!w && !d->extra)
return;
for (QWidget* fp = w; fp; fp = fp->focusProxy()) {
if (fp == this) {
qWarning("QWidget: %s (%s) already in focus proxy chain", metaObject()->className(), objectName().toLocal8Bit().constData());
return;
}
}
d->createExtra();
d->extra->focus_proxy = w;
}
/*!
Returns the focus proxy, or 0 if there is no focus proxy.
\sa setFocusProxy()
*/
QWidget * QWidget::focusProxy() const
{
Q_D(const QWidget);
return d->extra ? (QWidget *)d->extra->focus_proxy : 0;
}
/*!
\property QWidget::focus
\brief whether this widget (or its focus proxy) has the keyboard
input focus
By default, this property is false.
\note Obtaining the value of this property for a widget is effectively equivalent
to checking whether QApplication::focusWidget() refers to the widget.
\sa setFocus(), clearFocus(), setFocusPolicy(), QApplication::focusWidget()
*/
bool QWidget::hasFocus() const
{
const QWidget* w = this;
while (w->d_func()->extra && w->d_func()->extra->focus_proxy)
w = w->d_func()->extra->focus_proxy;
if (QWidget *window = w->window()) {
#ifndef QT_NO_GRAPHICSVIEW
QWExtra *e = window->d_func()->extra;
if (e && e->proxyWidget && e->proxyWidget->hasFocus() && window->focusWidget() == w)
return true;
#endif
}
return (QApplication::focusWidget() == w);
}
/*!
Gives the keyboard input focus to this widget (or its focus
proxy) if this widget or one of its parents is the \link
isActiveWindow() active window\endlink. The \a reason argument will
be passed into any focus event sent from this function, it is used
to give an explanation of what caused the widget to get focus.
If the window is not active, the widget will be given the focus when
the window becomes active.
First, a focus out event is sent to the focus widget (if any) to
tell it that it is about to lose the focus. Then a focus in event
is sent to this widget to tell it that it just received the focus.
(Nothing happens if the focus in and focus out widgets are the
same.)
\note On embedded platforms, setFocus() will not cause an input panel
to be opened by the input method. If you want this to happen, you
have to send a QEvent::RequestSoftwareInputPanel event to the
widget yourself.
setFocus() gives focus to a widget regardless of its focus policy,
but does not clear any keyboard grab (see grabKeyboard()).
Be aware that if the widget is hidden, it will not accept focus
until it is shown.
\warning If you call setFocus() in a function which may itself be
called from focusOutEvent() or focusInEvent(), you may get an
infinite recursion.
\sa hasFocus(), clearFocus(), focusInEvent(), focusOutEvent(),
setFocusPolicy(), focusWidget(), QApplication::focusWidget(), grabKeyboard(),
grabMouse(), {Keyboard Focus}, QEvent::RequestSoftwareInputPanel
*/
void QWidget::setFocus(Qt::FocusReason reason)
{
if (!isEnabled())
return;
QWidget *f = this;
while (f->d_func()->extra && f->d_func()->extra->focus_proxy)
f = f->d_func()->extra->focus_proxy;
if (QApplication::focusWidget() == f
#if defined(Q_WS_WIN)
&& GetFocus() == f->internalWinId()
#endif
)
return;
#ifndef QT_NO_GRAPHICSVIEW
QWidget *previousProxyFocus = 0;
if (QWExtra *topData = window()->d_func()->extra) {
if (topData->proxyWidget && topData->proxyWidget->hasFocus()) {
previousProxyFocus = topData->proxyWidget->widget()->focusWidget();
if (previousProxyFocus && previousProxyFocus->focusProxy())
previousProxyFocus = previousProxyFocus->focusProxy();
if (previousProxyFocus == this && !topData->proxyWidget->d_func()->proxyIsGivingFocus)
return;
}
}
#endif
QWidget *w = f;
if (isHidden()) {
while (w && w->isHidden()) {
w->d_func()->focus_child = f;
w = w->isWindow() ? 0 : w->parentWidget();
}
} else {
while (w) {
w->d_func()->focus_child = f;
w = w->isWindow() ? 0 : w->parentWidget();
}
}
#ifndef QT_NO_GRAPHICSVIEW
// Update proxy state
if (QWExtra *topData = window()->d_func()->extra) {
if (topData->proxyWidget && !topData->proxyWidget->hasFocus()) {
topData->proxyWidget->d_func()->focusFromWidgetToProxy = 1;
topData->proxyWidget->setFocus(reason);
topData->proxyWidget->d_func()->focusFromWidgetToProxy = 0;
}
}
#endif
if (f->isActiveWindow()) {
QApplicationPrivate::setFocusWidget(f, reason);
#ifndef QT_NO_ACCESSIBILITY
# ifdef Q_OS_WIN
// The negation of the condition in setFocus_sys
if (!(testAttribute(Qt::WA_WState_Created) && window()->windowType() != Qt::Popup && internalWinId()))
//setFocusWidget will already post a focus event for us (that the AT client receives) on Windows
# endif
# ifdef Q_OS_UNIX
// menus update the focus manually and this would create bogus events
if (!(f->inherits("QMenuBar") || f->inherits("QMenu") || f->inherits("QMenuItem")))
# endif
QAccessible::updateAccessibility(f, 0, QAccessible::Focus);
#endif
#ifndef QT_NO_GRAPHICSVIEW
if (QWExtra *topData = window()->d_func()->extra) {
if (topData->proxyWidget) {
if (previousProxyFocus && previousProxyFocus != f) {
// Send event to self
QFocusEvent event(QEvent::FocusOut, reason);
QPointer<QWidget> that = previousProxyFocus;
QApplication::sendEvent(previousProxyFocus, &event);
if (that)
QApplication::sendEvent(that->style(), &event);
}
if (!isHidden()) {
#ifndef QT_NO_GRAPHICSVIEW
// Update proxy state
if (QWExtra *topData = window()->d_func()->extra)
if (topData->proxyWidget && topData->proxyWidget->hasFocus())
topData->proxyWidget->d_func()->updateProxyInputMethodAcceptanceFromWidget();
#endif
// Send event to self
QFocusEvent event(QEvent::FocusIn, reason);
QPointer<QWidget> that = f;
QApplication::sendEvent(f, &event);
if (that)
QApplication::sendEvent(that->style(), &event);
}
}
}
#endif
}
}
/*!
\fn void QWidget::setFocus()
\overload
Gives the keyboard input focus to this widget (or its focus
proxy) if this widget or one of its parents is the
\l{isActiveWindow()}{active window}.
*/
/*!
Takes keyboard input focus from the widget.
If the widget has active focus, a \link focusOutEvent() focus out
event\endlink is sent to this widget to tell it that it is about
to lose the focus.
This widget must enable focus setting in order to get the keyboard
input focus, i.e. it must call setFocusPolicy().
\sa hasFocus(), setFocus(), focusInEvent(), focusOutEvent(),
setFocusPolicy(), QApplication::focusWidget()
*/
void QWidget::clearFocus()
{
QWidget *w = this;
while (w) {
if (w->d_func()->focus_child == this)
w->d_func()->focus_child = 0;
w = w->parentWidget();
}
#ifndef QT_NO_GRAPHICSVIEW
QWExtra *topData = d_func()->extra;
if (topData && topData->proxyWidget)
topData->proxyWidget->clearFocus();
#endif
if (hasFocus()) {
// Update proxy state
QApplicationPrivate::setFocusWidget(0, Qt::OtherFocusReason);
#if defined(Q_WS_WIN)
if (!(windowType() == Qt::Popup) && GetFocus() == internalWinId())
SetFocus(0);
else
#endif
{
#ifndef QT_NO_ACCESSIBILITY
QAccessible::updateAccessibility(this, 0, QAccessible::Focus);
#endif
}
}
}
/*!
\fn bool QWidget::focusNextChild()
Finds a new widget to give the keyboard focus to, as appropriate
for \key Tab, and returns true if it can find a new widget, or
false if it can't.
\sa focusPreviousChild()
*/
/*!
\fn bool QWidget::focusPreviousChild()
Finds a new widget to give the keyboard focus to, as appropriate
for \key Shift+Tab, and returns true if it can find a new widget,
or false if it can't.
\sa focusNextChild()
*/
/*!
Finds a new widget to give the keyboard focus to, as appropriate
for Tab and Shift+Tab, and returns true if it can find a new
widget, or false if it can't.
If \a next is true, this function searches forward, if \a next
is false, it searches backward.
Sometimes, you will want to reimplement this function. For
example, a web browser might reimplement it to move its "current
active link" forward or backward, and call
focusNextPrevChild() only when it reaches the last or
first link on the "page".
Child widgets call focusNextPrevChild() on their parent widgets,
but only the window that contains the child widgets decides where
to redirect focus. By reimplementing this function for an object,
you thus gain control of focus traversal for all child widgets.
\sa focusNextChild(), focusPreviousChild()
*/
bool QWidget::focusNextPrevChild(bool next)
{
Q_D(QWidget);
QWidget* p = parentWidget();
bool isSubWindow = (windowType() == Qt::SubWindow);
if (!isWindow() && !isSubWindow && p)
return p->focusNextPrevChild(next);
#ifndef QT_NO_GRAPHICSVIEW
if (d->extra && d->extra->proxyWidget)
return d->extra->proxyWidget->focusNextPrevChild(next);
#endif
QWidget *w = QApplicationPrivate::focusNextPrevChild_helper(this, next);
if (!w) return false;
w->setFocus(next ? Qt::TabFocusReason : Qt::BacktabFocusReason);
return true;
}
/*!
Returns the last child of this widget that setFocus had been
called on. For top level widgets this is the widget that will get
focus in case this window gets activated
This is not the same as QApplication::focusWidget(), which returns
the focus widget in the currently active window.
*/
QWidget *QWidget::focusWidget() const
{
return const_cast<QWidget *>(d_func()->focus_child);
}
/*!
Returns the next widget in this widget's focus chain.
\sa previousInFocusChain()
*/
QWidget *QWidget::nextInFocusChain() const
{
return const_cast<QWidget *>(d_func()->focus_next);
}
/*!
\brief The previousInFocusChain function returns the previous
widget in this widget's focus chain.
\sa nextInFocusChain()
\since 4.6
*/
QWidget *QWidget::previousInFocusChain() const
{
return const_cast<QWidget *>(d_func()->focus_prev);
}
/*!
\property QWidget::isActiveWindow
\brief whether this widget's window is the active window
The active window is the window that contains the widget that has
keyboard focus (The window may still have focus if it has no
widgets or none of its widgets accepts keyboard focus).
When popup windows are visible, this property is true for both the
active window \e and for the popup.
By default, this property is false.
\sa activateWindow(), QApplication::activeWindow()
*/
bool QWidget::isActiveWindow() const
{
QWidget *tlw = window();
if(tlw == QApplication::activeWindow() || (isVisible() && (tlw->windowType() == Qt::Popup)))
return true;
#ifndef QT_NO_GRAPHICSVIEW
if (QWExtra *tlwExtra = tlw->d_func()->extra) {
if (isVisible() && tlwExtra->proxyWidget)
return tlwExtra->proxyWidget->isActiveWindow();
}
#endif
#ifdef Q_WS_MAC
extern bool qt_mac_is_macdrawer(const QWidget *); //qwidget_mac.cpp
if(qt_mac_is_macdrawer(tlw) &&
tlw->parentWidget() && tlw->parentWidget()->isActiveWindow())
return true;
extern bool qt_mac_insideKeyWindow(const QWidget *); //qwidget_mac.cpp
if (QApplication::testAttribute(Qt::AA_MacPluginApplication) && qt_mac_insideKeyWindow(tlw))
return true;
#endif
if(style()->styleHint(QStyle::SH_Widget_ShareActivation, 0, this)) {
if(tlw->windowType() == Qt::Tool &&
!tlw->isModal() &&
(!tlw->parentWidget() || tlw->parentWidget()->isActiveWindow()))
return true;
QWidget *w = QApplication::activeWindow();
while(w && tlw->windowType() == Qt::Tool &&
!w->isModal() && w->parentWidget()) {
w = w->parentWidget()->window();
if(w == tlw)
return true;
}
}
#if defined(Q_WS_WIN32)
HWND active = GetActiveWindow();
if (!tlw->testAttribute(Qt::WA_WState_Created))
return false;
return active == tlw->internalWinId() || ::IsChild(active, tlw->internalWinId());
#else
return false;
#endif
}
/*!
Puts the \a second widget after the \a first widget in the focus order.
Note that since the tab order of the \a second widget is changed, you
should order a chain like this:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 9
\e not like this:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 10
If \a first or \a second has a focus proxy, setTabOrder()
correctly substitutes the proxy.
\sa setFocusPolicy(), setFocusProxy(), {Keyboard Focus}
*/
void QWidget::setTabOrder(QWidget* first, QWidget *second)
{
if (!first || !second || first->focusPolicy() == Qt::NoFocus || second->focusPolicy() == Qt::NoFocus)
return;
if (first->window() != second->window()) {
qWarning("QWidget::setTabOrder: 'first' and 'second' must be in the same window");
return;
}
QWidget *fp = first->focusProxy();
if (fp) {
// If first is redirected, set first to the last child of first
// that can take keyboard focus so that second is inserted after
// that last child, and the focus order within first is (more
// likely to be) preserved.
QList<QWidget *> l = first->findChildren<QWidget *>();
for (int i = l.size()-1; i >= 0; --i) {
QWidget * next = l.at(i);
if (next->window() == fp->window()) {
fp = next;
if (fp->focusPolicy() != Qt::NoFocus)
break;
}
}
first = fp;
}
if (fp == second)
return;
if (QWidget *sp = second->focusProxy())
second = sp;
// QWidget *fp = first->d_func()->focus_prev;
QWidget *fn = first->d_func()->focus_next;
if (fn == second || first == second)
return;
QWidget *sp = second->d_func()->focus_prev;
QWidget *sn = second->d_func()->focus_next;
fn->d_func()->focus_prev = second;
first->d_func()->focus_next = second;
second->d_func()->focus_next = fn;
second->d_func()->focus_prev = first;
sp->d_func()->focus_next = sn;
sn->d_func()->focus_prev = sp;
Q_ASSERT(first->d_func()->focus_next->d_func()->focus_prev == first);
Q_ASSERT(first->d_func()->focus_prev->d_func()->focus_next == first);
Q_ASSERT(second->d_func()->focus_next->d_func()->focus_prev == second);
Q_ASSERT(second->d_func()->focus_prev->d_func()->focus_next == second);
}
/*!\internal
Moves the relevant subwidgets of this widget from the \a oldtlw's
tab chain to that of the new parent, if there's anything to move and
we're really moving
This function is called from QWidget::reparent() *after* the widget
has been reparented.
\sa reparent()
*/
void QWidgetPrivate::reparentFocusWidgets(QWidget * oldtlw)
{
Q_Q(QWidget);
if (oldtlw == q->window())
return; // nothing to do
if(focus_child)
focus_child->clearFocus();
// separate the focus chain into new (children of myself) and old (the rest)
QWidget *firstOld = 0;
//QWidget *firstNew = q; //invariant
QWidget *o = 0; // last in the old list
QWidget *n = q; // last in the new list
bool prevWasNew = true;
QWidget *w = focus_next;
//Note: for efficiency, we do not maintain the list invariant inside the loop
//we append items to the relevant list, and we optimize by not changing pointers
//when subsequent items are going into the same list.
while (w != q) {
bool currentIsNew = q->isAncestorOf(w);
if (currentIsNew) {
if (!prevWasNew) {
//prev was old -- append to new list
n->d_func()->focus_next = w;
w->d_func()->focus_prev = n;
}
n = w;
} else {
if (prevWasNew) {
//prev was new -- append to old list, if there is one
if (o) {
o->d_func()->focus_next = w;
w->d_func()->focus_prev = o;
} else {
// "create" the old list
firstOld = w;
}
}
o = w;
}
w = w->d_func()->focus_next;
prevWasNew = currentIsNew;
}
//repair the old list:
if (firstOld) {
o->d_func()->focus_next = firstOld;
firstOld->d_func()->focus_prev = o;
}
if (!q->isWindow()) {
QWidget *topLevel = q->window();
//insert new chain into toplevel's chain
QWidget *prev = topLevel->d_func()->focus_prev;
topLevel->d_func()->focus_prev = n;
prev->d_func()->focus_next = q;
focus_prev = prev;
n->d_func()->focus_next = topLevel;
} else {
//repair the new list
n->d_func()->focus_next = q;
focus_prev = n;
}
}
/*!\internal
Measures the shortest distance from a point to a rect.
This function is called from QDesktopwidget::screen(QPoint) to find the
closest screen for a point.
In directional KeypadNavigation, it is called to find the closest
widget to the current focus widget center.
*/
int QWidgetPrivate::pointToRect(const QPoint &p, const QRect &r)
{
int dx = 0;
int dy = 0;
if (p.x() < r.left())
dx = r.left() - p.x();
else if (p.x() > r.right())
dx = p.x() - r.right();
if (p.y() < r.top())
dy = r.top() - p.y();
else if (p.y() > r.bottom())
dy = p.y() - r.bottom();
return dx + dy;
}
/*!
\property QWidget::frameSize
\brief the size of the widget including any window frame
By default, this property contains a value that depends on the user's
platform and screen geometry.
*/
QSize QWidget::frameSize() const
{
Q_D(const QWidget);
if (isWindow() && !(windowType() == Qt::Popup)) {
QRect fs = d->frameStrut();
return QSize(data->crect.width() + fs.left() + fs.right(),
data->crect.height() + fs.top() + fs.bottom());
}
return data->crect.size();
}
/*! \fn void QWidget::move(int x, int y)
\overload
This corresponds to move(QPoint(\a x, \a y)).
*/
void QWidget::move(const QPoint &p)
{
Q_D(QWidget);
setAttribute(Qt::WA_Moved);
if (isWindow())
d->topData()->posFromMove = true;
if (testAttribute(Qt::WA_WState_Created)) {
d->setGeometry_sys(p.x() + geometry().x() - QWidget::x(),
p.y() + geometry().y() - QWidget::y(),
width(), height(), true);
d->setDirtyOpaqueRegion();
} else {
data->crect.moveTopLeft(p); // no frame yet
setAttribute(Qt::WA_PendingMoveEvent);
}
}
/*! \fn void QWidget::resize(int w, int h)
\overload
This corresponds to resize(QSize(\a w, \a h)).
*/
void QWidget::resize(const QSize &s)
{
Q_D(QWidget);
setAttribute(Qt::WA_Resized);
if (testAttribute(Qt::WA_WState_Created)) {
d->setGeometry_sys(geometry().x(), geometry().y(), s.width(), s.height(), false);
d->setDirtyOpaqueRegion();
} else {
data->crect.setSize(s.boundedTo(maximumSize()).expandedTo(minimumSize()));
setAttribute(Qt::WA_PendingResizeEvent);
}
}
void QWidget::setGeometry(const QRect &r)
{
Q_D(QWidget);
setAttribute(Qt::WA_Resized);
setAttribute(Qt::WA_Moved);
if (isWindow())
d->topData()->posFromMove = false;
if (testAttribute(Qt::WA_WState_Created)) {
d->setGeometry_sys(r.x(), r.y(), r.width(), r.height(), true);
d->setDirtyOpaqueRegion();
} else {
data->crect.setTopLeft(r.topLeft());
data->crect.setSize(r.size().boundedTo(maximumSize()).expandedTo(minimumSize()));
setAttribute(Qt::WA_PendingMoveEvent);
setAttribute(Qt::WA_PendingResizeEvent);
}
}
/*!
\since 4.2
Saves the current geometry and state for top-level widgets.
To save the geometry when the window closes, you can
implement a close event like this:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 11
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
Use QMainWindow::saveState() to save the geometry and the state of
toolbars and dock widgets.
\sa restoreGeometry(), QMainWindow::saveState(), QMainWindow::restoreState()
*/
QByteArray QWidget::saveGeometry() const
{
#ifdef QT_MAC_USE_COCOA
// We check if the window was maximized during this invocation. If so, we need to record the
// starting position as 0,0.
Q_D(const QWidget);
QRect newFramePosition = frameGeometry();
QRect newNormalPosition = normalGeometry();
if(d->topData()->wasMaximized && !(windowState() & Qt::WindowMaximized)) {
// Change the starting position
newFramePosition.moveTo(0, 0);
newNormalPosition.moveTo(0, 0);
}
#endif // QT_MAC_USE_COCOA
QByteArray array;
QDataStream stream(&array, QIODevice::WriteOnly);
stream.setVersion(QDataStream::Qt_4_0);
const quint32 magicNumber = 0x1D9D0CB;
quint16 majorVersion = 1;
quint16 minorVersion = 0;
stream << magicNumber
<< majorVersion
<< minorVersion
#ifdef QT_MAC_USE_COCOA
<< newFramePosition
<< newNormalPosition
#else
<< frameGeometry()
<< normalGeometry()
#endif // QT_MAC_USE_COCOA
<< qint32(QApplication::desktop()->screenNumber(this))
<< quint8(windowState() & Qt::WindowMaximized)
<< quint8(windowState() & Qt::WindowFullScreen);
return array;
}
/*!
\since 4.2
Restores the geometry and state top-level widgets stored in the
byte array \a geometry. Returns true on success; otherwise
returns false.
If the restored geometry is off-screen, it will be modified to be
inside the available screen geometry.
To restore geometry saved using QSettings, you can use code like
this:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 12
See the \l{Window Geometry} documentation for an overview of geometry
issues with windows.
Use QMainWindow::restoreState() to restore the geometry and the
state of toolbars and dock widgets.
\sa saveGeometry(), QSettings, QMainWindow::saveState(), QMainWindow::restoreState()
*/
bool QWidget::restoreGeometry(const QByteArray &geometry)
{
if (geometry.size() < 4)
return false;
QDataStream stream(geometry);
stream.setVersion(QDataStream::Qt_4_0);
const quint32 magicNumber = 0x1D9D0CB;
quint32 storedMagicNumber;
stream >> storedMagicNumber;
if (storedMagicNumber != magicNumber)
return false;
const quint16 currentMajorVersion = 1;
quint16 majorVersion = 0;
quint16 minorVersion = 0;
stream >> majorVersion >> minorVersion;
if (majorVersion != currentMajorVersion)
return false;
// (Allow all minor versions.)
QRect restoredFrameGeometry;
QRect restoredNormalGeometry;
qint32 restoredScreenNumber;
quint8 maximized;
quint8 fullScreen;
stream >> restoredFrameGeometry
>> restoredNormalGeometry
>> restoredScreenNumber
>> maximized
>> fullScreen;
const int frameHeight = 20;
if (!restoredFrameGeometry.isValid())
restoredFrameGeometry = QRect(QPoint(0,0), sizeHint());
if (!restoredNormalGeometry.isValid())
restoredNormalGeometry = QRect(QPoint(0, frameHeight), sizeHint());
if (!restoredNormalGeometry.isValid()) {
// use the widget's adjustedSize if the sizeHint() doesn't help
restoredNormalGeometry.setSize(restoredNormalGeometry
.size()
.expandedTo(d_func()->adjustedSize()));
}
const QDesktopWidget * const desktop = QApplication::desktop();
if (restoredScreenNumber >= desktop->numScreens())
restoredScreenNumber = desktop->primaryScreen();
const QRect availableGeometry = desktop->availableGeometry(restoredScreenNumber);
// Modify the restored geometry if we are about to restore to coordinates
// that would make the window "lost". This happens if:
// - The restored geometry is completely oustside the available geometry
// - The title bar is outside the available geometry.
// - (Mac only) The window is higher than the available geometry. It must
// be possible to bring the size grip on screen by moving the window.
#ifdef Q_WS_MAC
restoredFrameGeometry.setHeight(qMin(restoredFrameGeometry.height(), availableGeometry.height()));
restoredNormalGeometry.setHeight(qMin(restoredNormalGeometry.height(), availableGeometry.height() - frameHeight));
#endif
if (!restoredFrameGeometry.intersects(availableGeometry)) {
restoredFrameGeometry.moveBottom(qMin(restoredFrameGeometry.bottom(), availableGeometry.bottom()));
restoredFrameGeometry.moveLeft(qMax(restoredFrameGeometry.left(), availableGeometry.left()));
restoredFrameGeometry.moveRight(qMin(restoredFrameGeometry.right(), availableGeometry.right()));
}
restoredFrameGeometry.moveTop(qMax(restoredFrameGeometry.top(), availableGeometry.top()));
if (!restoredNormalGeometry.intersects(availableGeometry)) {
restoredNormalGeometry.moveBottom(qMin(restoredNormalGeometry.bottom(), availableGeometry.bottom()));
restoredNormalGeometry.moveLeft(qMax(restoredNormalGeometry.left(), availableGeometry.left()));
restoredNormalGeometry.moveRight(qMin(restoredNormalGeometry.right(), availableGeometry.right()));
}
restoredNormalGeometry.moveTop(qMax(restoredNormalGeometry.top(), availableGeometry.top() + frameHeight));
if (maximized || fullScreen) {
// set geomerty before setting the window state to make
// sure the window is maximized to the right screen.
// Skip on windows: the window is restored into a broken
// half-maximized state.
#ifndef Q_WS_WIN
setGeometry(restoredNormalGeometry);
#endif
Qt::WindowStates ws = windowState();
if (maximized)
ws |= Qt::WindowMaximized;
if (fullScreen)
ws |= Qt::WindowFullScreen;
setWindowState(ws);
d_func()->topData()->normalGeometry = restoredNormalGeometry;
} else {
QPoint offset;
#ifdef Q_WS_X11
if (isFullScreen())
offset = d_func()->topData()->fullScreenOffset;
#endif
setWindowState(windowState() & ~(Qt::WindowMaximized | Qt::WindowFullScreen));
move(restoredFrameGeometry.topLeft() + offset);
resize(restoredNormalGeometry.size());
}
return true;
}
/*!\fn void QWidget::setGeometry(int x, int y, int w, int h)
\overload
This corresponds to setGeometry(QRect(\a x, \a y, \a w, \a h)).
*/
/*!
Sets the margins around the contents of the widget to have the sizes
\a left, \a top, \a right, and \a bottom. The margins are used by
the layout system, and may be used by subclasses to specify the area
to draw in (e.g. excluding the frame).
Changing the margins will trigger a resizeEvent().
\sa contentsRect(), getContentsMargins()
*/
void QWidget::setContentsMargins(int left, int top, int right, int bottom)
{
Q_D(QWidget);
if (left == d->leftmargin && top == d->topmargin
&& right == d->rightmargin && bottom == d->bottommargin)
return;
d->leftmargin = left;
d->topmargin = top;
d->rightmargin = right;
d->bottommargin = bottom;
if (QLayout *l=d->layout)
l->update(); //force activate; will do updateGeometry
else
updateGeometry();
// ### Qt 5: compat, remove
if (isVisible()) {
update();
QResizeEvent e(data->crect.size(), data->crect.size());
QApplication::sendEvent(this, &e);
} else {
setAttribute(Qt::WA_PendingResizeEvent, true);
}
QEvent e(QEvent::ContentsRectChange);
QApplication::sendEvent(this, &e);
}
/*!
\overload
\since 4.6
\brief The setContentsMargins function sets the margins around the
widget's contents.
Sets the margins around the contents of the widget to have the
sizes determined by \a margins. The margins are
used by the layout system, and may be used by subclasses to
specify the area to draw in (e.g. excluding the frame).
Changing the margins will trigger a resizeEvent().
\sa contentsRect(), getContentsMargins()
*/
void QWidget::setContentsMargins(const QMargins &margins)
{
setContentsMargins(margins.left(), margins.top(),
margins.right(), margins.bottom());
}
/*!
Returns the widget's contents margins for \a left, \a top, \a
right, and \a bottom.
\sa setContentsMargins(), contentsRect()
*/
void QWidget::getContentsMargins(int *left, int *top, int *right, int *bottom) const
{
Q_D(const QWidget);
if (left)
*left = d->leftmargin;
if (top)
*top = d->topmargin;
if (right)
*right = d->rightmargin;
if (bottom)
*bottom = d->bottommargin;
}
/*!
\since 4.6
\brief The contentsMargins function returns the widget's contents margins.
\sa getContentsMargins(), setContentsMargins(), contentsRect()
*/
QMargins QWidget::contentsMargins() const
{
Q_D(const QWidget);
return QMargins(d->leftmargin, d->topmargin, d->rightmargin, d->bottommargin);
}
/*!
Returns the area inside the widget's margins.
\sa setContentsMargins(), getContentsMargins()
*/
QRect QWidget::contentsRect() const
{
Q_D(const QWidget);
return QRect(QPoint(d->leftmargin, d->topmargin),
QPoint(data->crect.width() - 1 - d->rightmargin,
data->crect.height() - 1 - d->bottommargin));
}
/*!
\fn void QWidget::customContextMenuRequested(const QPoint &pos)
This signal is emitted when the widget's \l contextMenuPolicy is
Qt::CustomContextMenu, and the user has requested a context menu on
the widget. The position \a pos is the position of the context menu
event that the widget receives. Normally this is in widget
coordinates. The exception to this rule is QAbstractScrollArea and
its subclasses that map the context menu event to coordinates of the
\link QAbstractScrollArea::viewport() viewport() \endlink .
\sa mapToGlobal() QMenu contextMenuPolicy
*/
/*!
\property QWidget::contextMenuPolicy
\brief how the widget shows a context menu
The default value of this property is Qt::DefaultContextMenu,
which means the contextMenuEvent() handler is called. Other values
are Qt::NoContextMenu, Qt::PreventContextMenu,
Qt::ActionsContextMenu, and Qt::CustomContextMenu. With
Qt::CustomContextMenu, the signal customContextMenuRequested() is
emitted.
\sa contextMenuEvent(), customContextMenuRequested(), actions()
*/
Qt::ContextMenuPolicy QWidget::contextMenuPolicy() const
{
return (Qt::ContextMenuPolicy)data->context_menu_policy;
}
void QWidget::setContextMenuPolicy(Qt::ContextMenuPolicy policy)
{
data->context_menu_policy = (uint) policy;
}
/*!
\property QWidget::focusPolicy
\brief the way the widget accepts keyboard focus
The policy is Qt::TabFocus if the widget accepts keyboard
focus by tabbing, Qt::ClickFocus if the widget accepts
focus by clicking, Qt::StrongFocus if it accepts both, and
Qt::NoFocus (the default) if it does not accept focus at
all.
You must enable keyboard focus for a widget if it processes
keyboard events. This is normally done from the widget's
constructor. For instance, the QLineEdit constructor calls
setFocusPolicy(Qt::StrongFocus).
If the widget has a focus proxy, then the focus policy will
be propagated to it.
\sa focusInEvent(), focusOutEvent(), keyPressEvent(), keyReleaseEvent(), enabled
*/
Qt::FocusPolicy QWidget::focusPolicy() const
{
return (Qt::FocusPolicy)data->focus_policy;
}
void QWidget::setFocusPolicy(Qt::FocusPolicy policy)
{
data->focus_policy = (uint) policy;
Q_D(QWidget);
if (d->extra && d->extra->focus_proxy)
d->extra->focus_proxy->setFocusPolicy(policy);
}
/*!
\property QWidget::updatesEnabled
\brief whether updates are enabled
An updates enabled widget receives paint events and has a system
background; a disabled widget does not. This also implies that
calling update() and repaint() has no effect if updates are
disabled.
By default, this property is true.
setUpdatesEnabled() is normally used to disable updates for a
short period of time, for instance to avoid screen flicker during
large changes. In Qt, widgets normally do not generate screen
flicker, but on X11 the server might erase regions on the screen
when widgets get hidden before they can be replaced by other
widgets. Disabling updates solves this.
Example:
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 13
Disabling a widget implicitly disables all its children. Enabling a widget
enables all child widgets \e except top-level widgets or those that
have been explicitly disabled. Re-enabling updates implicitly calls
update() on the widget.
\sa paintEvent()
*/
void QWidget::setUpdatesEnabled(bool enable)
{
Q_D(QWidget);
setAttribute(Qt::WA_ForceUpdatesDisabled, !enable);
d->setUpdatesEnabled_helper(enable);
}
/*! \fn void QWidget::show()
Shows the widget and its child widgets. This function is
equivalent to setVisible(true).
\sa raise(), showEvent(), hide(), setVisible(), showMinimized(), showMaximized(),
showNormal(), isVisible()
*/
/*! \internal
Makes the widget visible in the isVisible() meaning of the word.
It is only called for toplevels or widgets with visible parents.
*/
void QWidgetPrivate::show_recursive()
{
Q_Q(QWidget);
// polish if necessary
if (!q->testAttribute(Qt::WA_WState_Created))
createRecursively();
q->ensurePolished();
#ifdef QT3_SUPPORT
if(sendChildEvents)
QApplication::sendPostedEvents(q, QEvent::ChildInserted);
#endif
if (!q->isWindow() && q->parentWidget()->d_func()->layout && !q->parentWidget()->data->in_show)
q->parentWidget()->d_func()->layout->activate();
// activate our layout before we and our children become visible
if (layout)
layout->activate();
show_helper();
}
void QWidgetPrivate::sendPendingMoveAndResizeEvents(bool recursive, bool disableUpdates)
{
Q_Q(QWidget);
disableUpdates = disableUpdates && q->updatesEnabled();
if (disableUpdates)
q->setAttribute(Qt::WA_UpdatesDisabled);
if (q->testAttribute(Qt::WA_PendingMoveEvent)) {
QMoveEvent e(data.crect.topLeft(), data.crect.topLeft());
QApplication::sendEvent(q, &e);
q->setAttribute(Qt::WA_PendingMoveEvent, false);
}
if (q->testAttribute(Qt::WA_PendingResizeEvent)) {
QResizeEvent e(data.crect.size(), QSize());
QApplication::sendEvent(q, &e);
q->setAttribute(Qt::WA_PendingResizeEvent, false);
}
if (disableUpdates)
q->setAttribute(Qt::WA_UpdatesDisabled, false);
if (!recursive)
return;
for (int i = 0; i < children.size(); ++i) {
if (QWidget *child = qobject_cast<QWidget *>(children.at(i)))
child->d_func()->sendPendingMoveAndResizeEvents(recursive, disableUpdates);
}
}
void QWidgetPrivate::activateChildLayoutsRecursively()
{
sendPendingMoveAndResizeEvents(false, true);
for (int i = 0; i < children.size(); ++i) {
QWidget *child = qobject_cast<QWidget *>(children.at(i));
if (!child || child->isHidden() || child->isWindow())
continue;
child->ensurePolished();
// Activate child's layout
QWidgetPrivate *childPrivate = child->d_func();
if (childPrivate->layout)
childPrivate->layout->activate();
// Pretend we're visible.
const bool wasVisible = child->isVisible();
if (!wasVisible)
child->setAttribute(Qt::WA_WState_Visible);
// Do the same for all my children.
childPrivate->activateChildLayoutsRecursively();
// We're not cheating anymore.
if (!wasVisible)
child->setAttribute(Qt::WA_WState_Visible, false);
}
}
void QWidgetPrivate::show_helper()
{
Q_Q(QWidget);
data.in_show = true; // qws optimization
// make sure we receive pending move and resize events
sendPendingMoveAndResizeEvents();
// become visible before showing all children
q->setAttribute(Qt::WA_WState_Visible);
// finally show all children recursively
showChildren(false);
#ifdef QT3_SUPPORT
if (q->parentWidget() && sendChildEvents)
QApplication::sendPostedEvents(q->parentWidget(),
QEvent::ChildInserted);
#endif
// popup handling: new popups and tools need to be raised, and
// existing popups must be closed. Also propagate the current
// windows's KeyboardFocusChange status.
if (q->isWindow()) {
if ((q->windowType() == Qt::Tool) || (q->windowType() == Qt::Popup) || q->windowType() == Qt::ToolTip) {
q->raise();
if (q->parentWidget() && q->parentWidget()->window()->testAttribute(Qt::WA_KeyboardFocusChange))
q->setAttribute(Qt::WA_KeyboardFocusChange);
} else {
while (QApplication::activePopupWidget()) {
if (!QApplication::activePopupWidget()->close())
break;
}
}
}
// Automatic embedding of child windows of widgets already embedded into
// QGraphicsProxyWidget when they are shown the first time.
bool isEmbedded = false;
#ifndef QT_NO_GRAPHICSVIEW
if (q->isWindow()) {
isEmbedded = q->graphicsProxyWidget() ? true : false;
if (!isEmbedded && !bypassGraphicsProxyWidget(q)) {
QGraphicsProxyWidget *ancestorProxy = nearestGraphicsProxyWidget(q->parentWidget());
if (ancestorProxy) {
isEmbedded = true;
ancestorProxy->d_func()->embedSubWindow(q);
}
}
}
#else
Q_UNUSED(isEmbedded);
#endif
// On Windows, show the popup now so that our own focus handling
// stores the correct old focus widget even if it's stolen in the
// showevent
#if defined(Q_WS_WIN) || defined(Q_WS_MAC) || defined(Q_OS_SYMBIAN)
if (!isEmbedded && q->windowType() == Qt::Popup)
qApp->d_func()->openPopup(q);
#endif
// send the show event before showing the window
QShowEvent showEvent;
QApplication::sendEvent(q, &showEvent);
if (!isEmbedded && q->isModal() && q->isWindow())
// QApplicationPrivate::enterModal *before* show, otherwise the initial
// stacking might be wrong
QApplicationPrivate::enterModal(q);
show_sys();
#if !defined(Q_WS_WIN) && !defined(Q_WS_MAC) && !defined(Q_OS_SYMBIAN)
if (!isEmbedded && q->windowType() == Qt::Popup)
qApp->d_func()->openPopup(q);
#endif
#ifndef QT_NO_ACCESSIBILITY
if (q->windowType() != Qt::ToolTip) // Tooltips are read aloud twice in MS narrator.
QAccessible::updateAccessibility(q, 0, QAccessible::ObjectShow);
#endif
if (QApplicationPrivate::hidden_focus_widget == q) {
QApplicationPrivate::hidden_focus_widget = 0;
q->setFocus(Qt::OtherFocusReason);
}
// Process events when showing a Qt::SplashScreen widget before the event loop
// is spinnning; otherwise it might not show up on particular platforms.
// This makes QSplashScreen behave the same on all platforms.
if (!qApp->d_func()->in_exec && q->windowType() == Qt::SplashScreen)
QApplication::processEvents();
data.in_show = false; // reset qws optimization
}
/*! \fn void QWidget::hide()
Hides the widget. This function is equivalent to
setVisible(false).
\note If you are working with QDialog or its subclasses and you invoke
the show() function after this function, the dialog will be displayed in
its original position.
\sa hideEvent(), isHidden(), show(), setVisible(), isVisible(), close()
*/
/*!\internal
*/
void QWidgetPrivate::hide_helper()
{
Q_Q(QWidget);
bool isEmbedded = false;
#if !defined QT_NO_GRAPHICSVIEW
isEmbedded = q->isWindow() && !bypassGraphicsProxyWidget(q) && nearestGraphicsProxyWidget(q->parentWidget()) != 0;
#else
Q_UNUSED(isEmbedded);
#endif
if (!isEmbedded && (q->windowType() == Qt::Popup))
qApp->d_func()->closePopup(q);
// Move test modal here. Otherwise, a modal dialog could get
// destroyed and we lose all access to its parent because we haven't
// left modality. (Eg. modal Progress Dialog)
if (!isEmbedded && q->isModal() && q->isWindow())
QApplicationPrivate::leaveModal(q);
#if defined(Q_WS_WIN)
if (q->isWindow() && !(q->windowType() == Qt::Popup) && q->parentWidget()
&& !q->parentWidget()->isHidden() && q->isActiveWindow())
q->parentWidget()->activateWindow(); // Activate parent
#endif
q->setAttribute(Qt::WA_Mapped, false);
hide_sys();
bool wasVisible = q->testAttribute(Qt::WA_WState_Visible);
if (wasVisible) {
q->setAttribute(Qt::WA_WState_Visible, false);
}
QHideEvent hideEvent;
QApplication::sendEvent(q, &hideEvent);
hideChildren(false);
// next bit tries to move the focus if the focus widget is now
// hidden.
if (wasVisible) {
#if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined (Q_WS_QWS) || defined(Q_WS_MAC) || defined(Q_WS_QPA)
qApp->d_func()->sendSyntheticEnterLeave(q);
#endif
QWidget *fw = QApplication::focusWidget();
while (fw && !fw->isWindow()) {
if (fw == q) {
q->focusNextPrevChild(true);
break;
}
fw = fw->parentWidget();
}
}
if (QWidgetBackingStore *bs = maybeBackingStore())
bs->removeDirtyWidget(q);
#ifndef QT_NO_ACCESSIBILITY
if (wasVisible)
QAccessible::updateAccessibility(q, 0, QAccessible::ObjectHide);
#endif
}
/*!
\fn bool QWidget::isHidden() const
Returns true if the widget is hidden, otherwise returns false.
A hidden widget will only become visible when show() is called on
it. It will not be automatically shown when the parent is shown.
To check visibility, use !isVisible() instead (notice the exclamation mark).
isHidden() implies !isVisible(), but a widget can be not visible
and not hidden at the same time. This is the case for widgets that are children of
widgets that are not visible.
Widgets are hidden if:
\list
\o they were created as independent windows,
\o they were created as children of visible widgets,
\o hide() or setVisible(false) was called.
\endlist
*/
void QWidget::setVisible(bool visible)
{
if (visible) { // show
if (testAttribute(Qt::WA_WState_ExplicitShowHide) && !testAttribute(Qt::WA_WState_Hidden))
return;
Q_D(QWidget);
// Designer uses a trick to make grabWidget work without showing
if (!isWindow() && parentWidget() && parentWidget()->isVisible()
&& !parentWidget()->testAttribute(Qt::WA_WState_Created))
parentWidget()->window()->d_func()->createRecursively();
//we have to at least create toplevels before applyX11SpecificCommandLineArguments
//but not children of non-visible parents
QWidget *pw = parentWidget();
if (!testAttribute(Qt::WA_WState_Created)
&& (isWindow() || pw->testAttribute(Qt::WA_WState_Created))) {
create();
}
#if defined(Q_WS_X11)
if (windowType() == Qt::Window)
QApplicationPrivate::applyX11SpecificCommandLineArguments(this);
#elif defined(Q_WS_QWS)
if (windowType() == Qt::Window)
QApplicationPrivate::applyQWSSpecificCommandLineArguments(this);
#endif
bool wasResized = testAttribute(Qt::WA_Resized);
Qt::WindowStates initialWindowState = windowState();
// polish if necessary
ensurePolished();
// remember that show was called explicitly
setAttribute(Qt::WA_WState_ExplicitShowHide);
// whether we need to inform the parent widget immediately
bool needUpdateGeometry = !isWindow() && testAttribute(Qt::WA_WState_Hidden);
// we are no longer hidden
setAttribute(Qt::WA_WState_Hidden, false);
if (needUpdateGeometry)
d->updateGeometry_helper(true);
#ifdef QT3_SUPPORT
QApplication::sendPostedEvents(this, QEvent::ChildInserted);
#endif
// activate our layout before we and our children become visible
if (d->layout)
d->layout->activate();
if (!isWindow()) {
QWidget *parent = parentWidget();
while (parent && parent->isVisible() && parent->d_func()->layout && !parent->data->in_show) {
parent->d_func()->layout->activate();
if (parent->isWindow())
break;
parent = parent->parentWidget();
}
if (parent)
parent->d_func()->setDirtyOpaqueRegion();
}
// adjust size if necessary
if (!wasResized
&& (isWindow() || !parentWidget()->d_func()->layout)) {
if (isWindow()) {
adjustSize();
if (windowState() != initialWindowState)
setWindowState(initialWindowState);
} else {
adjustSize();
}
setAttribute(Qt::WA_Resized, false);
}
setAttribute(Qt::WA_KeyboardFocusChange, false);
if (isWindow() || parentWidget()->isVisible()) {
// remove posted quit events when showing a new window
QCoreApplication::removePostedEvents(qApp, QEvent::Quit);
d->show_helper();
#if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined (Q_WS_QWS) || defined(Q_WS_MAC) || defined(Q_WS_QPA)
qApp->d_func()->sendSyntheticEnterLeave(this);
#endif
}
QEvent showToParentEvent(QEvent::ShowToParent);
QApplication::sendEvent(this, &showToParentEvent);
} else { // hide
if (testAttribute(Qt::WA_WState_ExplicitShowHide) && testAttribute(Qt::WA_WState_Hidden))
return;
#if defined(Q_WS_WIN)
// reset WS_DISABLED style in a Blocked window
if(isWindow() && testAttribute(Qt::WA_WState_Created)
&& QApplicationPrivate::isBlockedByModal(this))
{
LONG dwStyle = GetWindowLong(winId(), GWL_STYLE);
dwStyle &= ~WS_DISABLED;
SetWindowLong(winId(), GWL_STYLE, dwStyle);
}
#endif
if (QApplicationPrivate::hidden_focus_widget == this)
QApplicationPrivate::hidden_focus_widget = 0;
Q_D(QWidget);
// hw: The test on getOpaqueRegion() needs to be more intelligent
// currently it doesn't work if the widget is hidden (the region will
// be clipped). The real check should be testing the cached region
// (and dirty flag) directly.
if (!isWindow() && parentWidget()) // && !d->getOpaqueRegion().isEmpty())
parentWidget()->d_func()->setDirtyOpaqueRegion();
setAttribute(Qt::WA_WState_Hidden);
setAttribute(Qt::WA_WState_ExplicitShowHide);
if (testAttribute(Qt::WA_WState_Created))
d->hide_helper();
// invalidate layout similar to updateGeometry()
if (!isWindow() && parentWidget()) {
if (parentWidget()->d_func()->layout)
parentWidget()->d_func()->layout->invalidate();
else if (parentWidget()->isVisible())
QApplication::postEvent(parentWidget(), new QEvent(QEvent::LayoutRequest));
}
QEvent hideToParentEvent(QEvent::HideToParent);
QApplication::sendEvent(this, &hideToParentEvent);
}
}
/*!\fn void QWidget::setHidden(bool hidden)
Convenience function, equivalent to setVisible(!\a hidden).
*/
/*!\fn void QWidget::setShown(bool shown)
Use setVisible(\a shown) instead.
*/
void QWidgetPrivate::_q_showIfNotHidden()
{
Q_Q(QWidget);
if ( !(q->isHidden() && q->testAttribute(Qt::WA_WState_ExplicitShowHide)) )
q->setVisible(true);
}
void QWidgetPrivate::showChildren(bool spontaneous)
{
QList<QObject*> childList = children;
for (int i = 0; i < childList.size(); ++i) {
QWidget *widget = qobject_cast<QWidget*>(childList.at(i));
if (!widget
|| widget->isWindow()
|| widget->testAttribute(Qt::WA_WState_Hidden))
continue;
if (spontaneous) {
widget->setAttribute(Qt::WA_Mapped);
widget->d_func()->showChildren(true);
QShowEvent e;
QApplication::sendSpontaneousEvent(widget, &e);
} else {
if (widget->testAttribute(Qt::WA_WState_ExplicitShowHide))
widget->d_func()->show_recursive();
else
widget->show();
}
}
}
void QWidgetPrivate::hideChildren(bool spontaneous)
{
QList<QObject*> childList = children;
for (int i = 0; i < childList.size(); ++i) {
QWidget *widget = qobject_cast<QWidget*>(childList.at(i));
if (!widget || widget->isWindow() || widget->testAttribute(Qt::WA_WState_Hidden))
continue;
#ifdef QT_MAC_USE_COCOA
// Before doing anything we need to make sure that we don't leave anything in a non-consistent state.
// When hiding a widget we need to make sure that no mouse_down events are active, because
// the mouse_up event will never be received by a hidden widget or one of its descendants.
// The solution is simple, before going through with this we check if there are any mouse_down events in
// progress, if so we check if it is related to this widget or not. If so, we just reset the mouse_down and
// then we continue.
// In X11 and Windows we send a mouse_release event, however we don't do that here because we were already
// ignoring that from before. I.e. Carbon did not send the mouse release event, so we will not send the
// mouse release event. There are two ways to interpret this:
// 1. If we don't send the mouse release event, the widget might get into an inconsistent state, i.e. it
// might be waiting for a release event that will never arrive.
// 2. If we send the mouse release event, then the widget might decide to trigger an action that is not
// supposed to trigger because it is not visible.
if(widget == qt_button_down)
qt_button_down = 0;
#endif // QT_MAC_USE_COCOA
if (spontaneous)
widget->setAttribute(Qt::WA_Mapped, false);
else
widget->setAttribute(Qt::WA_WState_Visible, false);
widget->d_func()->hideChildren(spontaneous);
QHideEvent e;
if (spontaneous) {
QApplication::sendSpontaneousEvent(widget, &e);
} else {
QApplication::sendEvent(widget, &e);
if (widget->internalWinId()
&& widget->testAttribute(Qt::WA_DontCreateNativeAncestors)) {
// hide_sys() on an ancestor won't have any affect on this
// widget, so it needs an explicit hide_sys() of its own
widget->d_func()->hide_sys();
}
}
#if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined (Q_WS_QWS) || defined(Q_WS_MAC) || defined(Q_WS_QPA)
qApp->d_func()->sendSyntheticEnterLeave(widget);
#endif
#ifndef QT_NO_ACCESSIBILITY
if (!spontaneous)
QAccessible::updateAccessibility(widget, 0, QAccessible::ObjectHide);
#endif
}
}
bool QWidgetPrivate::close_helper(CloseMode mode)
{
if (data.is_closing)
return true;
Q_Q(QWidget);
data.is_closing = 1;
QPointer<QWidget> that = q;
QPointer<QWidget> parentWidget = q->parentWidget();
#ifdef QT3_SUPPORT
bool isMain = (QApplicationPrivate::main_widget == q);
#endif
bool quitOnClose = q->testAttribute(Qt::WA_QuitOnClose);
if (mode != CloseNoEvent) {
QCloseEvent e;
if (mode == CloseWithSpontaneousEvent)
QApplication::sendSpontaneousEvent(q, &e);
else
QApplication::sendEvent(q, &e);
if (!that.isNull() && !e.isAccepted()) {
data.is_closing = 0;
return false;
}
}
if (!that.isNull() && !q->isHidden())
q->hide();
#ifdef QT3_SUPPORT
if (isMain)
QApplication::quit();
#endif
// Attempt to close the application only if this has WA_QuitOnClose set and a non-visible parent
quitOnClose = quitOnClose && (parentWidget.isNull() || !parentWidget->isVisible());
if (quitOnClose) {
/* if there is no non-withdrawn primary window left (except
the ones without QuitOnClose), we emit the lastWindowClosed
signal */
QWidgetList list = QApplication::topLevelWidgets();
bool lastWindowClosed = true;
for (int i = 0; i < list.size(); ++i) {
QWidget *w = list.at(i);
if (!w->isVisible() || w->parentWidget() || !w->testAttribute(Qt::WA_QuitOnClose))
continue;
lastWindowClosed = false;
break;
}
if (lastWindowClosed)
QApplicationPrivate::emitLastWindowClosed();
}
if (!that.isNull()) {
data.is_closing = 0;
if (q->testAttribute(Qt::WA_DeleteOnClose)) {
q->setAttribute(Qt::WA_DeleteOnClose, false);
q->deleteLater();
}
}
return true;
}
/*!
Closes this widget. Returns true if the widget was closed;
otherwise returns false.
First it sends the widget a QCloseEvent. The widget is \link
hide() hidden\endlink if it \link QCloseEvent::accept()
accepts\endlink the close event. If it \link QCloseEvent::ignore()
ignores\endlink the event, nothing happens. The default
implementation of QWidget::closeEvent() accepts the close event.
If the widget has the Qt::WA_DeleteOnClose flag, the widget
is also deleted. A close events is delivered to the widget no
matter if the widget is visible or not.
The \l QApplication::lastWindowClosed() signal is emitted when the
last visible primary window (i.e. window with no parent) with the
Qt::WA_QuitOnClose attribute set is closed. By default this
attribute is set for all widgets except transient windows such as
splash screens, tool windows, and popup menus.
*/
bool QWidget::close()
{
return d_func()->close_helper(QWidgetPrivate::CloseWithEvent);
}
/*!
\property QWidget::visible
\brief whether the widget is visible
Calling setVisible(true) or show() sets the widget to visible
status if all its parent widgets up to the window are visible. If
an ancestor is not visible, the widget won't become visible until
all its ancestors are shown. If its size or position has changed,
Qt guarantees that a widget gets move and resize events just
before it is shown. If the widget has not been resized yet, Qt
will adjust the widget's size to a useful default using
adjustSize().
Calling setVisible(false) or hide() hides a widget explicitly. An
explicitly hidden widget will never become visible, even if all
its ancestors become visible, unless you show it.
A widget receives show and hide events when its visibility status
changes. Between a hide and a show event, there is no need to
waste CPU cycles preparing or displaying information to the user.
A video application, for example, might simply stop generating new
frames.
A widget that happens to be obscured by other windows on the
screen is considered to be visible. The same applies to iconified
windows and windows that exist on another virtual
desktop (on platforms that support this concept). A widget
receives spontaneous show and hide events when its mapping status
is changed by the window system, e.g. a spontaneous hide event
when the user minimizes the window, and a spontaneous show event
when the window is restored again.
You almost never have to reimplement the setVisible() function. If
you need to change some settings before a widget is shown, use
showEvent() instead. If you need to do some delayed initialization
use the Polish event delivered to the event() function.
\sa show(), hide(), isHidden(), isVisibleTo(), isMinimized(),
showEvent(), hideEvent()
*/
/*!
Returns true if this widget would become visible if \a ancestor is
shown; otherwise returns false.
The true case occurs if neither the widget itself nor any parent
up to but excluding \a ancestor has been explicitly hidden.
This function will still return true if the widget is obscured by
other windows on the screen, but could be physically visible if it
or they were to be moved.
isVisibleTo(0) is identical to isVisible().
\sa show() hide() isVisible()
*/
bool QWidget::isVisibleTo(QWidget* ancestor) const
{
if (!ancestor)
return isVisible();
const QWidget * w = this;
while (!w->isHidden()
&& !w->isWindow()
&& w->parentWidget()
&& w->parentWidget() != ancestor)
w = w->parentWidget();
return !w->isHidden();
}
#ifdef QT3_SUPPORT
/*!
Use visibleRegion() instead.
*/
QRect QWidget::visibleRect() const
{
return d_func()->clipRect();
}
#endif
/*!
Returns the unobscured region where paint events can occur.
For visible widgets, this is an approximation of the area not
covered by other widgets; otherwise, this is an empty region.
The repaint() function calls this function if necessary, so in
general you do not need to call it.
*/
QRegion QWidget::visibleRegion() const
{
Q_D(const QWidget);
QRect clipRect = d->clipRect();
if (clipRect.isEmpty())
return QRegion();
QRegion r(clipRect);
d->subtractOpaqueChildren(r, clipRect);
d->subtractOpaqueSiblings(r);
#ifdef Q_WS_QWS
const QWSWindowSurface *surface = static_cast<const QWSWindowSurface*>(windowSurface());
if (surface) {
const QPoint offset = mapTo(surface->window(), QPoint());
r &= surface->clipRegion().translated(-offset);
}
#endif
return r;
}
QSize QWidgetPrivate::adjustedSize() const
{
Q_Q(const QWidget);
QSize s = q->sizeHint();
if (q->isWindow()) {
Qt::Orientations exp;
if (layout) {
if (layout->hasHeightForWidth())
s.setHeight(layout->totalHeightForWidth(s.width()));
exp = layout->expandingDirections();
} else
{
if (q->sizePolicy().hasHeightForWidth())
s.setHeight(q->heightForWidth(s.width()));
exp = q->sizePolicy().expandingDirections();
}
if (exp & Qt::Horizontal)
s.setWidth(qMax(s.width(), 200));
if (exp & Qt::Vertical)
s.setHeight(qMax(s.height(), 100));
#if defined(Q_WS_X11)
QRect screen = QApplication::desktop()->screenGeometry(q->x11Info().screen());
#else // all others
QRect screen = QApplication::desktop()->screenGeometry(q->pos());
#endif
#if defined (Q_WS_WINCE) || defined (Q_OS_SYMBIAN)
s.setWidth(qMin(s.width(), screen.width()));
s.setHeight(qMin(s.height(), screen.height()));
#else
s.setWidth(qMin(s.width(), screen.width()*2/3));
s.setHeight(qMin(s.height(), screen.height()*2/3));
#endif
if (QTLWExtra *extra = maybeTopData())
extra->sizeAdjusted = true;
}
if (!s.isValid()) {
QRect r = q->childrenRect(); // get children rectangle
if (r.isNull())
return s;
s = r.size() + QSize(2 * r.x(), 2 * r.y());
}
return s;
}
/*!
Adjusts the size of the widget to fit its contents.
This function uses sizeHint() if it is valid, i.e., the size hint's width
and height are \>= 0. Otherwise, it sets the size to the children
rectangle that covers all child widgets (the union of all child widget
rectangles).
For windows, the screen size is also taken into account. If the sizeHint()
is less than (200, 100) and the size policy is \l{QSizePolicy::Expanding}
{expanding}, the window will be at least (200, 100). The maximum size of
a window is 2/3 of the screen's width and height.
\sa sizeHint(), childrenRect()
*/
void QWidget::adjustSize()
{
Q_D(QWidget);
ensurePolished();
QSize s = d->adjustedSize();
if (d->layout)
d->layout->activate();
if (s.isValid())
resize(s);
}
/*!
\property QWidget::sizeHint
\brief the recommended size for the widget
If the value of this property is an invalid size, no size is
recommended.
The default implementation of sizeHint() returns an invalid size
if there is no layout for this widget, and returns the layout's
preferred size otherwise.
\sa QSize::isValid(), minimumSizeHint(), sizePolicy(),
setMinimumSize(), updateGeometry()
*/
QSize QWidget::sizeHint() const
{
Q_D(const QWidget);
if (d->layout)
return d->layout->totalSizeHint();
return QSize(-1, -1);
}
/*!
\property QWidget::minimumSizeHint
\brief the recommended minimum size for the widget
If the value of this property is an invalid size, no minimum size
is recommended.
The default implementation of minimumSizeHint() returns an invalid
size if there is no layout for this widget, and returns the
layout's minimum size otherwise. Most built-in widgets reimplement
minimumSizeHint().
\l QLayout will never resize a widget to a size smaller than the
minimum size hint unless minimumSize() is set or the size policy is
set to QSizePolicy::Ignore. If minimumSize() is set, the minimum
size hint will be ignored.
\sa QSize::isValid(), resize(), setMinimumSize(), sizePolicy()
*/
QSize QWidget::minimumSizeHint() const
{
Q_D(const QWidget);
if (d->layout)
return d->layout->totalMinimumSize();
return QSize(-1, -1);
}
/*!
\fn QWidget *QWidget::parentWidget() const
Returns the parent of this widget, or 0 if it does not have any
parent widget.
*/
/*!
Returns true if this widget is a parent, (or grandparent and so on
to any level), of the given \a child, and both widgets are within
the same window; otherwise returns false.
*/
bool QWidget::isAncestorOf(const QWidget *child) const
{
while (child) {
if (child == this)
return true;
if (child->isWindow())
return false;
child = child->parentWidget();
}
return false;
}
#if defined(Q_WS_WIN)
inline void setDisabledStyle(QWidget *w, bool setStyle)
{
// set/reset WS_DISABLED style.
if(w && w->isWindow() && w->isVisible() && w->isEnabled()) {
LONG dwStyle = GetWindowLong(w->winId(), GWL_STYLE);
LONG newStyle = dwStyle;
if (setStyle)
newStyle |= WS_DISABLED;
else
newStyle &= ~WS_DISABLED;
if (newStyle != dwStyle) {
SetWindowLong(w->winId(), GWL_STYLE, newStyle);
// we might need to repaint in some situations (eg. menu)
w->repaint();
}
}
}
#endif
/*****************************************************************************
QWidget event handling
*****************************************************************************/
/*!
This is the main event handler; it handles event \a event. You can
reimplement this function in a subclass, but we recommend using
one of the specialized event handlers instead.
Key press and release events are treated differently from other
events. event() checks for Tab and Shift+Tab and tries to move the
focus appropriately. If there is no widget to move the focus to
(or the key press is not Tab or Shift+Tab), event() calls
keyPressEvent().
Mouse and tablet event handling is also slightly special: only
when the widget is \l enabled, event() will call the specialized
handlers such as mousePressEvent(); otherwise it will discard the
event.
This function returns true if the event was recognized, otherwise
it returns false. If the recognized event was accepted (see \l
QEvent::accepted), any further processing such as event
propagation to the parent widget stops.
\sa closeEvent(), focusInEvent(), focusOutEvent(), enterEvent(),
keyPressEvent(), keyReleaseEvent(), leaveEvent(),
mouseDoubleClickEvent(), mouseMoveEvent(), mousePressEvent(),
mouseReleaseEvent(), moveEvent(), paintEvent(), resizeEvent(),
QObject::event(), QObject::timerEvent()
*/
bool QWidget::event(QEvent *event)
{
Q_D(QWidget);
// ignore mouse events when disabled
if (!isEnabled()) {
switch(event->type()) {
case QEvent::TabletPress:
case QEvent::TabletRelease:
case QEvent::TabletMove:
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
case QEvent::MouseButtonDblClick:
case QEvent::MouseMove:
case QEvent::TouchBegin:
case QEvent::TouchUpdate:
case QEvent::TouchEnd:
case QEvent::ContextMenu:
#ifndef QT_NO_WHEELEVENT
case QEvent::Wheel:
#endif
return false;
default:
break;
}
}
switch (event->type()) {
case QEvent::MouseMove:
mouseMoveEvent((QMouseEvent*)event);
break;
case QEvent::MouseButtonPress:
// Don't reset input context here. Whether reset or not is
// a responsibility of input method. reset() will be
// called by mouseHandler() of input method if necessary
// via mousePressEvent() of text widgets.
#if 0
resetInputContext();
#endif
mousePressEvent((QMouseEvent*)event);
break;
case QEvent::MouseButtonRelease:
mouseReleaseEvent((QMouseEvent*)event);
break;
case QEvent::MouseButtonDblClick:
mouseDoubleClickEvent((QMouseEvent*)event);
break;
case QEvent::NonClientAreaMouseButtonPress: {
QWidget* w;
while ((w = QApplication::activePopupWidget()) && w != this) {
w->close();
if (QApplication::activePopupWidget() == w) // widget does not want to disappear
w->hide(); // hide at least
}
break;
}
#ifndef QT_NO_WHEELEVENT
case QEvent::Wheel:
wheelEvent((QWheelEvent*)event);
break;
#endif
#ifndef QT_NO_TABLETEVENT
case QEvent::TabletMove:
case QEvent::TabletPress:
case QEvent::TabletRelease:
tabletEvent((QTabletEvent*)event);
break;
#endif
#ifdef QT3_SUPPORT
case QEvent::Accel:
event->ignore();
return false;
#endif
case QEvent::KeyPress: {
QKeyEvent *k = (QKeyEvent *)event;
bool res = false;
if (!(k->modifiers() & (Qt::ControlModifier | Qt::AltModifier))) { //### Add MetaModifier?
if (k->key() == Qt::Key_Backtab
|| (k->key() == Qt::Key_Tab && (k->modifiers() & Qt::ShiftModifier)))
res = focusNextPrevChild(false);
else if (k->key() == Qt::Key_Tab)
res = focusNextPrevChild(true);
if (res)
break;
}
keyPressEvent(k);
#ifdef QT_KEYPAD_NAVIGATION
if (!k->isAccepted() && QApplication::keypadNavigationEnabled()
&& !(k->modifiers() & (Qt::ControlModifier | Qt::AltModifier | Qt::ShiftModifier))) {
if (QApplication::navigationMode() == Qt::NavigationModeKeypadTabOrder) {
if (k->key() == Qt::Key_Up)
res = focusNextPrevChild(false);
else if (k->key() == Qt::Key_Down)
res = focusNextPrevChild(true);
} else if (QApplication::navigationMode() == Qt::NavigationModeKeypadDirectional) {
if (k->key() == Qt::Key_Up)
res = QWidgetPrivate::navigateToDirection(QWidgetPrivate::DirectionNorth);
else if (k->key() == Qt::Key_Right)
res = QWidgetPrivate::navigateToDirection(QWidgetPrivate::DirectionEast);
else if (k->key() == Qt::Key_Down)
res = QWidgetPrivate::navigateToDirection(QWidgetPrivate::DirectionSouth);
else if (k->key() == Qt::Key_Left)
res = QWidgetPrivate::navigateToDirection(QWidgetPrivate::DirectionWest);
}
if (res) {
k->accept();
break;
}
}
#endif
#ifndef QT_NO_WHATSTHIS
if (!k->isAccepted()
&& k->modifiers() & Qt::ShiftModifier && k->key() == Qt::Key_F1
&& d->whatsThis.size()) {
QWhatsThis::showText(mapToGlobal(inputMethodQuery(Qt::ImMicroFocus).toRect().center()), d->whatsThis, this);
k->accept();
}
#endif
}
break;
case QEvent::KeyRelease:
keyReleaseEvent((QKeyEvent*)event);
// fall through
case QEvent::ShortcutOverride:
break;
case QEvent::InputMethod:
inputMethodEvent((QInputMethodEvent *) event);
break;
case QEvent::PolishRequest:
ensurePolished();
break;
case QEvent::Polish: {
style()->polish(this);
setAttribute(Qt::WA_WState_Polished);
if (!QApplication::font(this).isCopyOf(QApplication::font()))
d->resolveFont();
if (!QApplication::palette(this).isCopyOf(QApplication::palette()))
d->resolvePalette();
#ifdef QT3_SUPPORT
if(d->sendChildEvents)
QApplication::sendPostedEvents(this, QEvent::ChildInserted);
#endif
}
break;
case QEvent::ApplicationWindowIconChange:
if (isWindow() && !testAttribute(Qt::WA_SetWindowIcon)) {
d->setWindowIcon_sys();
d->setWindowIcon_helper();
}
break;
case QEvent::FocusIn:
#ifdef QT_SOFTKEYS_ENABLED
QSoftKeyManager::updateSoftKeys();
#endif
focusInEvent((QFocusEvent*)event);
break;
case QEvent::FocusOut:
focusOutEvent((QFocusEvent*)event);
break;
case QEvent::Enter:
#ifndef QT_NO_STATUSTIP
if (d->statusTip.size()) {
QStatusTipEvent tip(d->statusTip);
QApplication::sendEvent(const_cast<QWidget *>(this), &tip);
}
#endif
enterEvent(event);
break;
case QEvent::Leave:
#ifndef QT_NO_STATUSTIP
if (d->statusTip.size()) {
QString empty;
QStatusTipEvent tip(empty);
QApplication::sendEvent(const_cast<QWidget *>(this), &tip);
}
#endif
leaveEvent(event);
break;
case QEvent::HoverEnter:
case QEvent::HoverLeave:
update();
break;
case QEvent::Paint:
// At this point the event has to be delivered, regardless
// whether the widget isVisible() or not because it
// already went through the filters
paintEvent((QPaintEvent*)event);
break;
case QEvent::Move:
moveEvent((QMoveEvent*)event);
break;
case QEvent::Resize:
resizeEvent((QResizeEvent*)event);
break;
case QEvent::Close:
closeEvent((QCloseEvent *)event);
break;
#ifndef QT_NO_CONTEXTMENU
case QEvent::ContextMenu:
switch (data->context_menu_policy) {
case Qt::PreventContextMenu:
break;
case Qt::DefaultContextMenu:
contextMenuEvent(static_cast<QContextMenuEvent *>(event));
break;
case Qt::CustomContextMenu:
emit customContextMenuRequested(static_cast<QContextMenuEvent *>(event)->pos());
break;
#ifndef QT_NO_MENU
case Qt::ActionsContextMenu:
if (d->actions.count()) {
QMenu::exec(d->actions, static_cast<QContextMenuEvent *>(event)->globalPos(),
0, this);
break;
}
// fall through
#endif
default:
event->ignore();
break;
}
break;
#endif // QT_NO_CONTEXTMENU
#ifndef QT_NO_DRAGANDDROP
case QEvent::Drop:
dropEvent((QDropEvent*) event);
break;
case QEvent::DragEnter:
dragEnterEvent((QDragEnterEvent*) event);
break;
case QEvent::DragMove:
dragMoveEvent((QDragMoveEvent*) event);
break;
case QEvent::DragLeave:
dragLeaveEvent((QDragLeaveEvent*) event);
break;
#endif
case QEvent::Show:
showEvent((QShowEvent*) event);
break;
case QEvent::Hide:
hideEvent((QHideEvent*) event);
break;
case QEvent::ShowWindowRequest:
if (!isHidden())
d->show_sys();
break;
case QEvent::ApplicationFontChange:
d->resolveFont();
break;
case QEvent::ApplicationPaletteChange:
if (!(windowType() == Qt::Desktop))
d->resolvePalette();
break;
case QEvent::ToolBarChange:
case QEvent::ActivationChange:
case QEvent::EnabledChange:
case QEvent::FontChange:
case QEvent::StyleChange:
case QEvent::PaletteChange:
case QEvent::WindowTitleChange:
case QEvent::IconTextChange:
case QEvent::ModifiedChange:
case QEvent::MouseTrackingChange:
case QEvent::ParentChange:
case QEvent::WindowStateChange:
case QEvent::LocaleChange:
case QEvent::MacSizeChange:
case QEvent::ContentsRectChange:
changeEvent(event);
break;
case QEvent::WindowActivate:
case QEvent::WindowDeactivate: {
#ifdef QT3_SUPPORT
windowActivationChange(event->type() != QEvent::WindowActivate);
#endif
if (isVisible() && !palette().isEqual(QPalette::Active, QPalette::Inactive))
update();
QList<QObject*> childList = d->children;
for (int i = 0; i < childList.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(childList.at(i));
if (w && w->isVisible() && !w->isWindow())
QApplication::sendEvent(w, event);
}
#ifdef QT_SOFTKEYS_ENABLED
if (isWindow())
QSoftKeyManager::updateSoftKeys();
#endif
break; }
case QEvent::LanguageChange:
#ifdef QT3_SUPPORT
languageChange();
#endif
changeEvent(event);
{
QList<QObject*> childList = d->children;
for (int i = 0; i < childList.size(); ++i) {
QObject *o = childList.at(i);
if (o)
QApplication::sendEvent(o, event);
}
}
update();
break;
case QEvent::ApplicationLayoutDirectionChange:
d->resolveLayoutDirection();
break;
case QEvent::LayoutDirectionChange:
if (d->layout)
d->layout->invalidate();
update();
changeEvent(event);
break;
case QEvent::UpdateRequest:
d->syncBackingStore();
break;
case QEvent::UpdateLater:
update(static_cast<QUpdateLaterEvent*>(event)->region());
break;
case QEvent::WindowBlocked:
case QEvent::WindowUnblocked:
{
QList<QObject*> childList = d->children;
for (int i = 0; i < childList.size(); ++i) {
QObject *o = childList.at(i);
if (o && o != QApplication::activeModalWidget()) {
if (qobject_cast<QWidget *>(o) && static_cast<QWidget *>(o)->isWindow()) {
// do not forward the event to child windows,
// QApplication does this for us
continue;
}
QApplication::sendEvent(o, event);
}
}
#if defined(Q_WS_WIN)
setDisabledStyle(this, (event->type() == QEvent::WindowBlocked));
#endif
}
break;
#ifndef QT_NO_TOOLTIP
case QEvent::ToolTip:
if (!d->toolTip.isEmpty())
QToolTip::showText(static_cast<QHelpEvent*>(event)->globalPos(), d->toolTip, this);
else
event->ignore();
break;
#endif
#ifndef QT_NO_WHATSTHIS
case QEvent::WhatsThis:
if (d->whatsThis.size())
QWhatsThis::showText(static_cast<QHelpEvent *>(event)->globalPos(), d->whatsThis, this);
else
event->ignore();
break;
case QEvent::QueryWhatsThis:
if (d->whatsThis.isEmpty())
event->ignore();
break;
#endif
#ifndef QT_NO_ACCESSIBILITY
case QEvent::AccessibilityDescription:
case QEvent::AccessibilityHelp: {
QAccessibleEvent *ev = static_cast<QAccessibleEvent *>(event);
if (ev->child())
return false;
switch (ev->type()) {
#ifndef QT_NO_TOOLTIP
case QEvent::AccessibilityDescription:
ev->setValue(d->toolTip);
break;
#endif
#ifndef QT_NO_WHATSTHIS
case QEvent::AccessibilityHelp:
ev->setValue(d->whatsThis);
break;
#endif
default:
return false;
}
break; }
#endif
case QEvent::EmbeddingControl:
d->topData()->frameStrut.setCoords(0 ,0, 0, 0);
data->fstrut_dirty = false;
#if defined(Q_WS_WIN) || defined(Q_WS_X11)
d->topData()->embedded = 1;
#endif
break;
#ifndef QT_NO_ACTION
case QEvent::ActionAdded:
case QEvent::ActionRemoved:
case QEvent::ActionChanged:
#ifdef QT_SOFTKEYS_ENABLED
QSoftKeyManager::updateSoftKeys();
#endif
actionEvent((QActionEvent*)event);
break;
#endif
case QEvent::KeyboardLayoutChange:
{
changeEvent(event);
// inform children of the change
QList<QObject*> childList = d->children;
for (int i = 0; i < childList.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(childList.at(i));
if (w && w->isVisible() && !w->isWindow())
QApplication::sendEvent(w, event);
}
break;
}
#ifdef Q_WS_MAC
case QEvent::MacGLWindowChange:
d->needWindowChange = false;
break;
#endif
case QEvent::TouchBegin:
case QEvent::TouchUpdate:
case QEvent::TouchEnd:
{
#ifndef Q_WS_MAC
QTouchEvent *touchEvent = static_cast<QTouchEvent *>(event);
const QTouchEvent::TouchPoint &touchPoint = touchEvent->touchPoints().first();
if (touchPoint.isPrimary() || touchEvent->deviceType() == QTouchEvent::TouchPad)
break;
// fake a mouse event!
QEvent::Type eventType = QEvent::None;
switch (touchEvent->type()) {
case QEvent::TouchBegin:
eventType = QEvent::MouseButtonPress;
break;
case QEvent::TouchUpdate:
eventType = QEvent::MouseMove;
break;
case QEvent::TouchEnd:
eventType = QEvent::MouseButtonRelease;
break;
default:
Q_ASSERT(!true);
break;
}
if (eventType == QEvent::None)
break;
QMouseEvent mouseEvent(eventType,
touchPoint.pos().toPoint(),
touchPoint.screenPos().toPoint(),
Qt::LeftButton,
Qt::LeftButton,
touchEvent->modifiers());
(void) QApplication::sendEvent(this, &mouseEvent);
#endif // Q_WS_MAC
break;
}
#ifndef QT_NO_GESTURES
case QEvent::Gesture:
event->ignore();
break;
#endif
#ifndef QT_NO_PROPERTIES
case QEvent::DynamicPropertyChange: {
const QByteArray &propName = static_cast<QDynamicPropertyChangeEvent *>(event)->propertyName();
if (!qstrncmp(propName, "_q_customDpi", 12) && propName.length() == 13) {
uint value = property(propName.constData()).toUInt();
if (!d->extra)
d->createExtra();
const char axis = propName.at(12);
if (axis == 'X')
d->extra->customDpiX = value;
else if (axis == 'Y')
d->extra->customDpiY = value;
d->updateFont(d->data.fnt);
}
// fall through
}
#endif
default:
return QObject::event(event);
}
return true;
}
/*!
This event handler can be reimplemented to handle state changes.
The state being changed in this event can be retrieved through the \a event
supplied.
Change events include: QEvent::ToolBarChange,
QEvent::ActivationChange, QEvent::EnabledChange, QEvent::FontChange,
QEvent::StyleChange, QEvent::PaletteChange,
QEvent::WindowTitleChange, QEvent::IconTextChange,
QEvent::ModifiedChange, QEvent::MouseTrackingChange,
QEvent::ParentChange, QEvent::WindowStateChange,
QEvent::LanguageChange, QEvent::LocaleChange,
QEvent::LayoutDirectionChange.
*/
void QWidget::changeEvent(QEvent * event)
{
switch(event->type()) {
case QEvent::EnabledChange:
update();
#ifndef QT_NO_ACCESSIBILITY
QAccessible::updateAccessibility(this, 0, QAccessible::StateChanged);
#endif
break;
case QEvent::FontChange:
case QEvent::StyleChange: {
Q_D(QWidget);
update();
updateGeometry();
if (d->layout)
d->layout->invalidate();
#ifdef Q_WS_QWS
if (isWindow())
d->data.fstrut_dirty = true;
#endif
break;
}
case QEvent::PaletteChange:
update();
break;
#ifdef Q_WS_MAC
case QEvent::MacSizeChange:
updateGeometry();
break;
case QEvent::ToolTipChange:
case QEvent::MouseTrackingChange:
qt_mac_update_mouseTracking(this);
break;
#endif
default:
break;
}
}
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive mouse move events for the widget.
If mouse tracking is switched off, mouse move events only occur if
a mouse button is pressed while the mouse is being moved. If mouse
tracking is switched on, mouse move events occur even if no mouse
button is pressed.
QMouseEvent::pos() reports the position of the mouse cursor,
relative to this widget. For press and release events, the
position is usually the same as the position of the last mouse
move event, but it might be different if the user's hand shakes.
This is a feature of the underlying window system, not Qt.
If you want to show a tooltip immediately, while the mouse is
moving (e.g., to get the mouse coordinates with QMouseEvent::pos()
and show them as a tooltip), you must first enable mouse tracking
as described above. Then, to ensure that the tooltip is updated
immediately, you must call QToolTip::showText() instead of
setToolTip() in your implementation of mouseMoveEvent().
\sa setMouseTracking(), mousePressEvent(), mouseReleaseEvent(),
mouseDoubleClickEvent(), event(), QMouseEvent, {Scribble Example}
*/
void QWidget::mouseMoveEvent(QMouseEvent *event)
{
event->ignore();
}
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive mouse press events for the widget.
If you create new widgets in the mousePressEvent() the
mouseReleaseEvent() may not end up where you expect, depending on
the underlying window system (or X11 window manager), the widgets'
location and maybe more.
The default implementation implements the closing of popup widgets
when you click outside the window. For other widget types it does
nothing.
\sa mouseReleaseEvent(), mouseDoubleClickEvent(),
mouseMoveEvent(), event(), QMouseEvent, {Scribble Example}
*/
void QWidget::mousePressEvent(QMouseEvent *event)
{
event->ignore();
if ((windowType() == Qt::Popup)) {
event->accept();
QWidget* w;
while ((w = QApplication::activePopupWidget()) && w != this){
w->close();
if (QApplication::activePopupWidget() == w) // widget does not want to disappear
w->hide(); // hide at least
}
if (!rect().contains(event->pos())){
close();
}
}
}
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive mouse release events for the widget.
\sa mousePressEvent(), mouseDoubleClickEvent(),
mouseMoveEvent(), event(), QMouseEvent, {Scribble Example}
*/
void QWidget::mouseReleaseEvent(QMouseEvent *event)
{
event->ignore();
}
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive mouse double click events for the widget.
The default implementation generates a normal mouse press event.
\note The widget will also receive mouse press and mouse release
events in addition to the double click event. It is up to the
developer to ensure that the application interprets these events
correctly.
\sa mousePressEvent(), mouseReleaseEvent() mouseMoveEvent(),
event(), QMouseEvent
*/
void QWidget::mouseDoubleClickEvent(QMouseEvent *event)
{
mousePressEvent(event); // try mouse press event
}
#ifndef QT_NO_WHEELEVENT
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive wheel events for the widget.
If you reimplement this handler, it is very important that you
\link QWheelEvent ignore()\endlink the event if you do not handle
it, so that the widget's parent can interpret it.
The default implementation ignores the event.
\sa QWheelEvent::ignore(), QWheelEvent::accept(), event(),
QWheelEvent
*/
void QWidget::wheelEvent(QWheelEvent *event)
{
event->ignore();
}
#endif // QT_NO_WHEELEVENT
#ifndef QT_NO_TABLETEVENT
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive tablet events for the widget.
If you reimplement this handler, it is very important that you
\link QTabletEvent ignore()\endlink the event if you do not handle
it, so that the widget's parent can interpret it.
The default implementation ignores the event.
\sa QTabletEvent::ignore(), QTabletEvent::accept(), event(),
QTabletEvent
*/
void QWidget::tabletEvent(QTabletEvent *event)
{
event->ignore();
}
#endif // QT_NO_TABLETEVENT
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive key press events for the widget.
A widget must call setFocusPolicy() to accept focus initially and
have focus in order to receive a key press event.
If you reimplement this handler, it is very important that you
call the base class implementation if you do not act upon the key.
The default implementation closes popup widgets if the user
presses Esc. Otherwise the event is ignored, so that the widget's
parent can interpret it.
Note that QKeyEvent starts with isAccepted() == true, so you do not
need to call QKeyEvent::accept() - just do not call the base class
implementation if you act upon the key.
\sa keyReleaseEvent(), setFocusPolicy(),
focusInEvent(), focusOutEvent(), event(), QKeyEvent, {Tetrix Example}
*/
void QWidget::keyPressEvent(QKeyEvent *event)
{
if ((windowType() == Qt::Popup) && event->key() == Qt::Key_Escape) {
event->accept();
close();
} else {
event->ignore();
}
}
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive key release events for the widget.
A widget must \link setFocusPolicy() accept focus\endlink
initially and \link hasFocus() have focus\endlink in order to
receive a key release event.
If you reimplement this handler, it is very important that you
call the base class implementation if you do not act upon the key.
The default implementation ignores the event, so that the widget's
parent can interpret it.
Note that QKeyEvent starts with isAccepted() == true, so you do not
need to call QKeyEvent::accept() - just do not call the base class
implementation if you act upon the key.
\sa keyPressEvent(), QKeyEvent::ignore(), setFocusPolicy(),
focusInEvent(), focusOutEvent(), event(), QKeyEvent
*/
void QWidget::keyReleaseEvent(QKeyEvent *event)
{
event->ignore();
}
/*!
\fn void QWidget::focusInEvent(QFocusEvent *event)
This event handler can be reimplemented in a subclass to receive
keyboard focus events (focus received) for the widget. The event
is passed in the \a event parameter
A widget normally must setFocusPolicy() to something other than
Qt::NoFocus in order to receive focus events. (Note that the
application programmer can call setFocus() on any widget, even
those that do not normally accept focus.)
The default implementation updates the widget (except for windows
that do not specify a focusPolicy()).
\sa focusOutEvent(), setFocusPolicy(), keyPressEvent(),
keyReleaseEvent(), event(), QFocusEvent
*/
void QWidget::focusInEvent(QFocusEvent *)
{
if (focusPolicy() != Qt::NoFocus || !isWindow()) {
update();
}
}
/*!
\fn void QWidget::focusOutEvent(QFocusEvent *event)
This event handler can be reimplemented in a subclass to receive
keyboard focus events (focus lost) for the widget. The events is
passed in the \a event parameter.
A widget normally must setFocusPolicy() to something other than
Qt::NoFocus in order to receive focus events. (Note that the
application programmer can call setFocus() on any widget, even
those that do not normally accept focus.)
The default implementation updates the widget (except for windows
that do not specify a focusPolicy()).
\sa focusInEvent(), setFocusPolicy(), keyPressEvent(),
keyReleaseEvent(), event(), QFocusEvent
*/
void QWidget::focusOutEvent(QFocusEvent *)
{
if (focusPolicy() != Qt::NoFocus || !isWindow())
update();
}
/*!
\fn void QWidget::enterEvent(QEvent *event)
This event handler can be reimplemented in a subclass to receive
widget enter events which are passed in the \a event parameter.
An event is sent to the widget when the mouse cursor enters the
widget.
\sa leaveEvent(), mouseMoveEvent(), event()
*/
void QWidget::enterEvent(QEvent *)
{
}
/*!
\fn void QWidget::leaveEvent(QEvent *event)
This event handler can be reimplemented in a subclass to receive
widget leave events which are passed in the \a event parameter.
A leave event is sent to the widget when the mouse cursor leaves
the widget.
\sa enterEvent(), mouseMoveEvent(), event()
*/
void QWidget::leaveEvent(QEvent *)
{
}
/*!
\fn void QWidget::paintEvent(QPaintEvent *event)
This event handler can be reimplemented in a subclass to receive paint
events passed in \a event.
A paint event is a request to repaint all or part of a widget. It can
happen for one of the following reasons:
\list
\o repaint() or update() was invoked,
\o the widget was obscured and has now been uncovered, or
\o many other reasons.
\endlist
Many widgets can simply repaint their entire surface when asked to, but
some slow widgets need to optimize by painting only the requested region:
QPaintEvent::region(). This speed optimization does not change the result,
as painting is clipped to that region during event processing. QListView
and QTableView do this, for example.
Qt also tries to speed up painting by merging multiple paint events into
one. When update() is called several times or the window system sends
several paint events, Qt merges these events into one event with a larger
region (see QRegion::united()). The repaint() function does not permit this
optimization, so we suggest using update() whenever possible.
When the paint event occurs, the update region has normally been erased, so
you are painting on the widget's background.
The background can be set using setBackgroundRole() and setPalette().
Since Qt 4.0, QWidget automatically double-buffers its painting, so there
is no need to write double-buffering code in paintEvent() to avoid flicker.
\bold{Note for the X11 platform}: It is possible to toggle global double
buffering by calling \c qt_x11_set_global_double_buffer(). For example,
\snippet doc/src/snippets/code/src_gui_kernel_qwidget.cpp 14
\note Generally, you should refrain from calling update() or repaint()
\bold{inside} a paintEvent(). For example, calling update() or repaint() on
children inside a paintevent() results in undefined behavior; the child may
or may not get a paint event.
\warning If you are using a custom paint engine without Qt's backingstore,
Qt::WA_PaintOnScreen must be set. Otherwise, QWidget::paintEngine() will
never be called; the backingstore will be used instead.
\sa event(), repaint(), update(), QPainter, QPixmap, QPaintEvent,
{Analog Clock Example}
*/
void QWidget::paintEvent(QPaintEvent *)
{
}
/*!
\fn void QWidget::moveEvent(QMoveEvent *event)
This event handler can be reimplemented in a subclass to receive
widget move events which are passed in the \a event parameter.
When the widget receives this event, it is already at the new
position.
The old position is accessible through QMoveEvent::oldPos().
\sa resizeEvent(), event(), move(), QMoveEvent
*/
void QWidget::moveEvent(QMoveEvent *)
{
}
/*!
This event handler can be reimplemented in a subclass to receive
widget resize events which are passed in the \a event parameter.
When resizeEvent() is called, the widget already has its new
geometry. The old size is accessible through
QResizeEvent::oldSize().
The widget will be erased and receive a paint event immediately
after processing the resize event. No drawing need be (or should
be) done inside this handler.
\sa moveEvent(), event(), resize(), QResizeEvent, paintEvent(),
{Scribble Example}
*/
void QWidget::resizeEvent(QResizeEvent * /* event */)
{
}
#ifndef QT_NO_ACTION
/*!
\fn void QWidget::actionEvent(QActionEvent *event)
This event handler is called with the given \a event whenever the
widget's actions are changed.
\sa addAction(), insertAction(), removeAction(), actions(), QActionEvent
*/
void QWidget::actionEvent(QActionEvent *)
{
}
#endif
/*!
This event handler is called with the given \a event when Qt receives a window
close request for a top-level widget from the window system.
By default, the event is accepted and the widget is closed. You can reimplement
this function to change the way the widget responds to window close requests.
For example, you can prevent the window from closing by calling \l{QEvent::}{ignore()}
on all events.
Main window applications typically use reimplementations of this function to check
whether the user's work has been saved and ask for permission before closing.
For example, the \l{Application Example} uses a helper function to determine whether
or not to close the window:
\snippet mainwindows/application/mainwindow.cpp 3
\snippet mainwindows/application/mainwindow.cpp 4
\sa event(), hide(), close(), QCloseEvent, {Application Example}
*/
void QWidget::closeEvent(QCloseEvent *event)
{
event->accept();
}
#ifndef QT_NO_CONTEXTMENU
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive widget context menu events.
The handler is called when the widget's \l contextMenuPolicy is
Qt::DefaultContextMenu.
The default implementation ignores the context event.
See the \l QContextMenuEvent documentation for more details.
\sa event(), QContextMenuEvent customContextMenuRequested()
*/
void QWidget::contextMenuEvent(QContextMenuEvent *event)
{
event->ignore();
}
#endif // QT_NO_CONTEXTMENU
/*!
This event handler, for event \a event, can be reimplemented in a
subclass to receive Input Method composition events. This handler
is called when the state of the input method changes.
Note that when creating custom text editing widgets, the
Qt::WA_InputMethodEnabled window attribute must be set explicitly
(using the setAttribute() function) in order to receive input
method events.
The default implementation calls event->ignore(), which rejects the
Input Method event. See the \l QInputMethodEvent documentation for more
details.
\sa event(), QInputMethodEvent
*/
void QWidget::inputMethodEvent(QInputMethodEvent *event)
{
event->ignore();
}
/*!
This method is only relevant for input widgets. It is used by the
input method to query a set of properties of the widget to be
able to support complex input method operations as support for
surrounding text and reconversions.
\a query specifies which property is queried.
\sa inputMethodEvent(), QInputMethodEvent, QInputContext, inputMethodHints
*/
QVariant QWidget::inputMethodQuery(Qt::InputMethodQuery query) const
{
switch(query) {
case Qt::ImMicroFocus:
return QRect(width()/2, 0, 1, height());
case Qt::ImFont:
return font();
case Qt::ImAnchorPosition:
// Fallback.
return inputMethodQuery(Qt::ImCursorPosition);
default:
return QVariant();
}
}
/*!
\property QWidget::inputMethodHints
\brief What input method specific hints the widget has.
This is only relevant for input widgets. It is used by
the input method to retrieve hints as to how the input method
should operate. For example, if the Qt::ImhFormattedNumbersOnly flag
is set, the input method may change its visual components to reflect
that only numbers can be entered.
\note The flags are only hints, so the particular input method
implementation is free to ignore them. If you want to be
sure that a certain type of characters are entered,
you should also set a QValidator on the widget.
The default value is Qt::ImhNone.
\since 4.6
\sa inputMethodQuery(), QInputContext
*/
Qt::InputMethodHints QWidget::inputMethodHints() const
{
#ifndef QT_NO_IM
const QWidgetPrivate *priv = d_func();
while (priv->inheritsInputMethodHints) {
priv = priv->q_func()->parentWidget()->d_func();
Q_ASSERT(priv);
}
return priv->imHints;
#else //QT_NO_IM
return 0;
#endif //QT_NO_IM
}
void QWidget::setInputMethodHints(Qt::InputMethodHints hints)
{
#ifndef QT_NO_IM
Q_D(QWidget);
if (d->imHints == hints)
return;
d->imHints = hints;
// Optimization to update input context only it has already been created.
if (d->ic || qApp->d_func()->inputContext) {
QInputContext *ic = inputContext();
if (ic)
ic->update();
}
#endif //QT_NO_IM
}
#ifndef QT_NO_DRAGANDDROP
/*!
\fn void QWidget::dragEnterEvent(QDragEnterEvent *event)
This event handler is called when a drag is in progress and the
mouse enters this widget. The event is passed in the \a event parameter.
If the event is ignored, the widget won't receive any \l{dragMoveEvent()}{drag
move events}.
See the \link dnd.html Drag-and-drop documentation\endlink for an
overview of how to provide drag-and-drop in your application.
\sa QDrag, QDragEnterEvent
*/
void QWidget::dragEnterEvent(QDragEnterEvent *)
{
}
/*!
\fn void QWidget::dragMoveEvent(QDragMoveEvent *event)
This event handler is called if a drag is in progress, and when
any of the following conditions occur: the cursor enters this widget,
the cursor moves within this widget, or a modifier key is pressed on
the keyboard while this widget has the focus. The event is passed
in the \a event parameter.
See the \link dnd.html Drag-and-drop documentation\endlink for an
overview of how to provide drag-and-drop in your application.
\sa QDrag, QDragMoveEvent
*/
void QWidget::dragMoveEvent(QDragMoveEvent *)
{
}
/*!
\fn void QWidget::dragLeaveEvent(QDragLeaveEvent *event)
This event handler is called when a drag is in progress and the
mouse leaves this widget. The event is passed in the \a event
parameter.
See the \link dnd.html Drag-and-drop documentation\endlink for an
overview of how to provide drag-and-drop in your application.
\sa QDrag, QDragLeaveEvent
*/
void QWidget::dragLeaveEvent(QDragLeaveEvent *)
{
}
/*!
\fn void QWidget::dropEvent(QDropEvent *event)
This event handler is called when the drag is dropped on this
widget. The event is passed in the \a event parameter.
See the \link dnd.html Drag-and-drop documentation\endlink for an
overview of how to provide drag-and-drop in your application.
\sa QDrag, QDropEvent
*/
void QWidget::dropEvent(QDropEvent *)
{
}
#endif // QT_NO_DRAGANDDROP
/*!
\fn void QWidget::showEvent(QShowEvent *event)
This event handler can be reimplemented in a subclass to receive
widget show events which are passed in the \a event parameter.
Non-spontaneous show events are sent to widgets immediately
before they are shown. The spontaneous show events of windows are
delivered afterwards.
Note: A widget receives spontaneous show and hide events when its
mapping status is changed by the window system, e.g. a spontaneous
hide event when the user minimizes the window, and a spontaneous
show event when the window is restored again. After receiving a
spontaneous hide event, a widget is still considered visible in
the sense of isVisible().
\sa visible, event(), QShowEvent
*/
void QWidget::showEvent(QShowEvent *)
{
}
/*!
\fn void QWidget::hideEvent(QHideEvent *event)
This event handler can be reimplemented in a subclass to receive
widget hide events. The event is passed in the \a event parameter.
Hide events are sent to widgets immediately after they have been
hidden.
Note: A widget receives spontaneous show and hide events when its
mapping status is changed by the window system, e.g. a spontaneous
hide event when the user minimizes the window, and a spontaneous
show event when the window is restored again. After receiving a
spontaneous hide event, a widget is still considered visible in
the sense of isVisible().
\sa visible, event(), QHideEvent
*/
void QWidget::hideEvent(QHideEvent *)
{
}
/*
\fn QWidget::x11Event(MSG *)
This special event handler can be reimplemented in a subclass to receive
native X11 events.
In your reimplementation of this function, if you want to stop Qt from
handling the event, return true. If you return false, this native event
is passed back to Qt, which translates it into a Qt event and sends it to
the widget.
\note Events are only delivered to this event handler if the widget is
native.
\warning This function is not portable.
\sa QApplication::x11EventFilter(), QWidget::winId()
*/
#if defined(Q_WS_MAC)
/*!
\fn bool QWidget::macEvent(EventHandlerCallRef caller, EventRef event)
This special event handler can be reimplemented in a subclass to
receive native Macintosh events.
The parameters are a bit different depending if Qt is build against Carbon
or Cocoa. In Carbon, \a caller and \a event are the corresponding
EventHandlerCallRef and EventRef that correspond to the Carbon event
handlers that are installed. In Cocoa, \a caller is always 0 and the
EventRef is the EventRef generated from the NSEvent.
In your reimplementation of this function, if you want to stop the
event being handled by Qt, return true. If you return false, this
native event is passed back to Qt, which translates the event into
a Qt event and sends it to the widget.
\warning This function is not portable.
\warning This function was not called inside of Qt until Qt 4.4.
If you need compatibility with earlier versions of Qt, consider QApplication::macEventFilter() instead.
\sa QApplication::macEventFilter()
*/
bool QWidget::macEvent(EventHandlerCallRef, EventRef)
{
return false;
}
#endif
#if defined(Q_WS_WIN)
/*!
This special event handler can be reimplemented in a subclass to
receive native Windows events which are passed in the \a message
parameter.
In your reimplementation of this function, if you want to stop the
event being handled by Qt, return true and set \a result to the value
that the window procedure should return. If you return false, this
native event is passed back to Qt, which translates the event into
a Qt event and sends it to the widget.
\warning This function is not portable.
\sa QApplication::winEventFilter()
*/
bool QWidget::winEvent(MSG *message, long *result)
{
Q_UNUSED(message);
Q_UNUSED(result);
return false;
}
#endif
#if defined(Q_WS_X11)
/*!
\fn bool QWidget::x11Event(XEvent *event)
This special event handler can be reimplemented in a subclass to receive
native X11 events passed in the \a event parameter.
In your reimplementation of this function, if you want to stop Qt from
handling the event, return true. If you return false, this native event
is passed back to Qt, which translates it into a Qt event and sends it to
the widget.
\note Events are only delivered to this event handler if the widget is
native.
\warning This function is not portable.
\sa QApplication::x11EventFilter(), QWidget::winId()
*/
bool QWidget::x11Event(XEvent *)
{
return false;
}
#endif
#if defined(Q_WS_QWS)
/*!
\fn bool QWidget::qwsEvent(QWSEvent *event)
This special event handler can be reimplemented in a subclass to
receive native Qt for Embedded Linux events which are passed in the
\a event parameter.
In your reimplementation of this function, if you want to stop the
event being handled by Qt, return true. If you return false, this
native event is passed back to Qt, which translates the event into
a Qt event and sends it to the widget.
\warning This function is not portable.
\sa QApplication::qwsEventFilter()
*/
bool QWidget::qwsEvent(QWSEvent *)
{
return false;
}
#endif
/*!
Ensures that the widget has been polished by QStyle (i.e., has a
proper font and palette).
QWidget calls this function after it has been fully constructed
but before it is shown the very first time. You can call this
function if you want to ensure that the widget is polished before
doing an operation, e.g., the correct font size might be needed in
the widget's sizeHint() reimplementation. Note that this function
\e is called from the default implementation of sizeHint().
Polishing is useful for final initialization that must happen after
all constructors (from base classes as well as from subclasses)
have been called.
If you need to change some settings when a widget is polished,
reimplement event() and handle the QEvent::Polish event type.
\bold{Note:} The function is declared const so that it can be called from
other const functions (e.g., sizeHint()).
\sa event()
*/
void QWidget::ensurePolished() const
{
Q_D(const QWidget);
const QMetaObject *m = metaObject();
if (m == d->polished)
return;
d->polished = m;
QEvent e(QEvent::Polish);
QCoreApplication::sendEvent(const_cast<QWidget *>(this), &e);
// polish children after 'this'
QList<QObject*> children = d->children;
for (int i = 0; i < children.size(); ++i) {
QObject *o = children.at(i);
if(!o->isWidgetType())
continue;
if (QWidget *w = qobject_cast<QWidget *>(o))
w->ensurePolished();
}
if (d->parent && d->sendChildEvents) {
QChildEvent e(QEvent::ChildPolished, const_cast<QWidget *>(this));
QCoreApplication::sendEvent(d->parent, &e);
}
}
/*!
Returns the mask currently set on a widget. If no mask is set the
return value will be an empty region.
\sa setMask(), clearMask(), QRegion::isEmpty(), {Shaped Clock Example}
*/
QRegion QWidget::mask() const
{
Q_D(const QWidget);
return d->extra ? d->extra->mask : QRegion();
}
/*!
Returns the layout manager that is installed on this widget, or 0
if no layout manager is installed.
The layout manager sets the geometry of the widget's children
that have been added to the layout.
\sa setLayout(), sizePolicy(), {Layout Management}
*/
QLayout *QWidget::layout() const
{
return d_func()->layout;
}
/*!
\fn void QWidget::setLayout(QLayout *layout)
Sets the layout manager for this widget to \a layout.
If there already is a layout manager installed on this widget,
QWidget won't let you install another. You must first delete the
existing layout manager (returned by layout()) before you can
call setLayout() with the new layout.
If \a layout is the layout manger on a different widget, setLayout()
will reparent the layout and make it the layout manager for this widget.
Example:
\snippet examples/uitools/textfinder/textfinder.cpp 3b
An alternative to calling this function is to pass this widget to
the layout's constructor.
The QWidget will take ownership of \a layout.
\sa layout(), {Layout Management}
*/
void QWidget::setLayout(QLayout *l)
{
if (!l) {
qWarning("QWidget::setLayout: Cannot set layout to 0");
return;
}
if (layout()) {
if (layout() != l)
qWarning("QWidget::setLayout: Attempting to set QLayout \"%s\" on %s \"%s\", which already has a"
" layout", l->objectName().toLocal8Bit().data(), metaObject()->className(),
objectName().toLocal8Bit().data());
return;
}
QObject *oldParent = l->parent();
if (oldParent && oldParent != this) {
if (oldParent->isWidgetType()) {
// Steal the layout off a widget parent. Takes effect when
// morphing laid-out container widgets in Designer.
QWidget *oldParentWidget = static_cast<QWidget *>(oldParent);
oldParentWidget->takeLayout();
} else {
qWarning("QWidget::setLayout: Attempting to set QLayout \"%s\" on %s \"%s\", when the QLayout already has a parent",
l->objectName().toLocal8Bit().data(), metaObject()->className(),
objectName().toLocal8Bit().data());
return;
}
}
Q_D(QWidget);
l->d_func()->topLevel = true;
d->layout = l;
if (oldParent != this) {
l->setParent(this);
l->d_func()->reparentChildWidgets(this);
l->invalidate();
}
if (isWindow() && d->maybeTopData())
d->topData()->sizeAdjusted = false;
}
/*!
\fn QLayout *QWidget::takeLayout()
Remove the layout from the widget.
\since 4.5
*/
QLayout *QWidget::takeLayout()
{
Q_D(QWidget);
QLayout *l = layout();
if (!l)
return 0;
d->layout = 0;
l->setParent(0);
return l;
}
/*!
\property QWidget::sizePolicy
\brief the default layout behavior of the widget
If there is a QLayout that manages this widget's children, the
size policy specified by that layout is used. If there is no such
QLayout, the result of this function is used.
The default policy is Preferred/Preferred, which means that the
widget can be freely resized, but prefers to be the size
sizeHint() returns. Button-like widgets set the size policy to
specify that they may stretch horizontally, but are fixed
vertically. The same applies to lineedit controls (such as
QLineEdit, QSpinBox or an editable QComboBox) and other
horizontally orientated widgets (such as QProgressBar).
QToolButton's are normally square, so they allow growth in both
directions. Widgets that support different directions (such as
QSlider, QScrollBar or QHeader) specify stretching in the
respective direction only. Widgets that can provide scroll bars
(usually subclasses of QScrollArea) tend to specify that they can
use additional space, and that they can make do with less than
sizeHint().
\sa sizeHint() QLayout QSizePolicy updateGeometry()
*/
QSizePolicy QWidget::sizePolicy() const
{
Q_D(const QWidget);
return d->size_policy;
}
void QWidget::setSizePolicy(QSizePolicy policy)
{
Q_D(QWidget);
setAttribute(Qt::WA_WState_OwnSizePolicy);
if (policy == d->size_policy)
return;
d->size_policy = policy;
#ifndef QT_NO_GRAPHICSVIEW
if (QWExtra *extra = d->extra) {
if (extra->proxyWidget)
extra->proxyWidget->setSizePolicy(policy);
}
#endif
updateGeometry();
if (isWindow() && d->maybeTopData())
d->topData()->sizeAdjusted = false;
}
/*!
\fn void QWidget::setSizePolicy(QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical)
\overload
Sets the size policy of the widget to \a horizontal and \a
vertical, with standard stretch and no height-for-width.
\sa QSizePolicy::QSizePolicy()
*/
/*!
Returns the preferred height for this widget, given the width \a w.
If this widget has a layout, the default implementation returns
the layout's preferred height. if there is no layout, the default
implementation returns -1 indicating that the preferred height
does not depend on the width.
*/
int QWidget::heightForWidth(int w) const
{
if (layout() && layout()->hasHeightForWidth())
return layout()->totalHeightForWidth(w);
return -1;
}
/*!
\internal
*virtual private*
This is a bit hackish, but ideally we would have created a virtual function
in the public API (however, too late...) so that subclasses could reimplement
their own function.
Instead we add a virtual function to QWidgetPrivate.
### Qt5: move to public class and make virtual
*/
bool QWidgetPrivate::hasHeightForWidth() const
{
return layout ? layout->hasHeightForWidth() : size_policy.hasHeightForWidth();
}
/*!
\fn QWidget *QWidget::childAt(int x, int y) const
Returns the visible child widget at the position (\a{x}, \a{y})
in the widget's coordinate system. If there is no visible child
widget at the specified position, the function returns 0.
*/
/*!
\overload
Returns the visible child widget at point \a p in the widget's own
coordinate system.
*/
QWidget *QWidget::childAt(const QPoint &p) const
{
return d_func()->childAt_helper(p, false);
}
QWidget *QWidgetPrivate::childAt_helper(const QPoint &p, bool ignoreChildrenInDestructor) const
{
if (children.isEmpty())
return 0;
#ifdef Q_WS_MAC
Q_Q(const QWidget);
// Unified tool bars on the Mac require special handling since they live outside
// QMainWindow's geometry(). See commit: 35667fd45ada49269a5987c235fdedfc43e92bb8
bool includeFrame = q->isWindow() && qobject_cast<const QMainWindow *>(q)
&& static_cast<const QMainWindow *>(q)->unifiedTitleAndToolBarOnMac();
if (includeFrame)
return childAtRecursiveHelper(p, ignoreChildrenInDestructor, includeFrame);
#endif
if (!pointInsideRectAndMask(p))
return 0;
return childAtRecursiveHelper(p, ignoreChildrenInDestructor);
}
QWidget *QWidgetPrivate::childAtRecursiveHelper(const QPoint &p, bool ignoreChildrenInDestructor, bool includeFrame) const
{
#ifndef Q_WS_MAC
Q_UNUSED(includeFrame);
#endif
for (int i = children.size() - 1; i >= 0; --i) {
QWidget *child = qobject_cast<QWidget *>(children.at(i));
if (!child || child->isWindow() || child->isHidden() || child->testAttribute(Qt::WA_TransparentForMouseEvents)
|| (ignoreChildrenInDestructor && child->data->in_destructor)) {
continue;
}
// Map the point 'p' from parent coordinates to child coordinates.
QPoint childPoint = p;
#ifdef Q_WS_MAC
// 'includeFrame' is true if the child's parent is a top-level QMainWindow with an unified tool bar.
// An unified tool bar on the Mac lives outside QMainWindow's geometry(), so a normal
// QWidget::mapFromParent won't do the trick.
if (includeFrame && qobject_cast<QToolBar *>(child))
childPoint = qt_mac_nativeMapFromParent(child, p);
else
#endif
childPoint -= child->data->crect.topLeft();
// Check if the point hits the child.
if (!child->d_func()->pointInsideRectAndMask(childPoint))
continue;
// Do the same for the child's descendants.
if (QWidget *w = child->d_func()->childAtRecursiveHelper(childPoint, ignoreChildrenInDestructor))
return w;
// We have found our target; namely the child at position 'p'.
return child;
}
return 0;
}
void QWidgetPrivate::updateGeometry_helper(bool forceUpdate)
{
Q_Q(QWidget);
if (widgetItem)
widgetItem->invalidateSizeCache();
QWidget *parent;
if (forceUpdate || !extra || extra->minw != extra->maxw || extra->minh != extra->maxh) {
if (!q->isWindow() && !q->isHidden() && (parent = q->parentWidget())) {
if (parent->d_func()->layout)
parent->d_func()->layout->invalidate();
else if (parent->isVisible())
QApplication::postEvent(parent, new QEvent(QEvent::LayoutRequest));
}
}
}
/*!
Notifies the layout system that this widget has changed and may
need to change geometry.
Call this function if the sizeHint() or sizePolicy() have changed.
For explicitly hidden widgets, updateGeometry() is a no-op. The
layout system will be notified as soon as the widget is shown.
*/
void QWidget::updateGeometry()
{
Q_D(QWidget);
d->updateGeometry_helper(false);
}
/*! \property QWidget::windowFlags
Window flags are a combination of a type (e.g. Qt::Dialog) and
zero or more hints to the window system (e.g.
Qt::FramelessWindowHint).
If the widget had type Qt::Widget or Qt::SubWindow and becomes a
window (Qt::Window, Qt::Dialog, etc.), it is put at position (0,
0) on the desktop. If the widget is a window and becomes a
Qt::Widget or Qt::SubWindow, it is put at position (0, 0)
relative to its parent widget.
\note This function calls setParent() when changing the flags for
a window, causing the widget to be hidden. You must call show() to make
the widget visible again..
\sa windowType(), {Window Flags Example}
*/
void QWidget::setWindowFlags(Qt::WindowFlags flags)
{
if (data->window_flags == flags)
return;
Q_D(QWidget);
if ((data->window_flags | flags) & Qt::Window) {
// the old type was a window and/or the new type is a window
QPoint oldPos = pos();
bool visible = isVisible();
setParent(parentWidget(), flags);
// if both types are windows or neither of them are, we restore
// the old position
if (!((data->window_flags ^ flags) & Qt::Window)
&& (visible || testAttribute(Qt::WA_Moved))) {
move(oldPos);
}
// for backward-compatibility we change Qt::WA_QuitOnClose attribute value only when the window was recreated.
d->adjustQuitOnCloseAttribute();
} else {
data->window_flags = flags;
}
}
/*!
Sets the window flags for the widget to \a flags,
\e without telling the window system.
\warning Do not call this function unless you really know what
you're doing.
\sa setWindowFlags()
*/
void QWidget::overrideWindowFlags(Qt::WindowFlags flags)
{
data->window_flags = flags;
}
/*!
\fn Qt::WindowType QWidget::windowType() const
Returns the window type of this widget. This is identical to
windowFlags() & Qt::WindowType_Mask.
\sa windowFlags
*/
/*!
Sets the parent of the widget to \a parent, and resets the window
flags. The widget is moved to position (0, 0) in its new parent.
If the new parent widget is in a different window, the
reparented widget and its children are appended to the end of the
\l{setFocusPolicy()}{tab chain} of the new parent
widget, in the same internal order as before. If one of the moved
widgets had keyboard focus, setParent() calls clearFocus() for that
widget.
If the new parent widget is in the same window as the
old parent, setting the parent doesn't change the tab order or
keyboard focus.
If the "new" parent widget is the old parent widget, this function
does nothing.
\note The widget becomes invisible as part of changing its parent,
even if it was previously visible. You must call show() to make the
widget visible again.
\warning It is very unlikely that you will ever need this
function. If you have a widget that changes its content
dynamically, it is far easier to use \l QStackedWidget.
\sa setWindowFlags()
*/
void QWidget::setParent(QWidget *parent)
{
if (parent == parentWidget())
return;
setParent((QWidget*)parent, windowFlags() & ~Qt::WindowType_Mask);
}
/*!
\overload
This function also takes widget flags, \a f as an argument.
*/
void QWidget::setParent(QWidget *parent, Qt::WindowFlags f)
{
Q_D(QWidget);
d->inSetParent = true;
bool resized = testAttribute(Qt::WA_Resized);
bool wasCreated = testAttribute(Qt::WA_WState_Created);
QWidget *oldtlw = window();
QWidget *desktopWidget = 0;
if (parent && parent->windowType() == Qt::Desktop)
desktopWidget = parent;
bool newParent = (parent != parentWidget()) || !wasCreated || desktopWidget;
#if defined(Q_WS_X11) || defined(Q_WS_WIN) || defined(Q_WS_MAC) || defined(Q_OS_SYMBIAN)
if (newParent && parent && !desktopWidget) {
if (testAttribute(Qt::WA_NativeWindow) && !qApp->testAttribute(Qt::AA_DontCreateNativeWidgetSiblings)
#if defined(Q_WS_MAC) && defined(QT_MAC_USE_COCOA)
// On Mac, toolbars inside the unified title bar will never overlap with
// siblings in the content view. So we skip enforce native siblings in that case
&& !d->isInUnifiedToolbar && parentWidget() && parentWidget()->isWindow()
#endif // Q_WS_MAC && QT_MAC_USE_COCOA
)
parent->d_func()->enforceNativeChildren();
else if (parent->d_func()->nativeChildrenForced() || parent->testAttribute(Qt::WA_PaintOnScreen))
setAttribute(Qt::WA_NativeWindow);
}
#endif
if (wasCreated) {
if (!testAttribute(Qt::WA_WState_Hidden)) {
hide();
setAttribute(Qt::WA_WState_ExplicitShowHide, false);
}
if (newParent) {
QEvent e(QEvent::ParentAboutToChange);
QApplication::sendEvent(this, &e);
}
}
if (newParent && isAncestorOf(focusWidget()))
focusWidget()->clearFocus();
QTLWExtra *oldTopExtra = window()->d_func()->maybeTopData();
QWidgetBackingStoreTracker *oldBsTracker = oldTopExtra ? &oldTopExtra->backingStore : 0;
d->setParent_sys(parent, f);
QTLWExtra *topExtra = window()->d_func()->maybeTopData();
QWidgetBackingStoreTracker *bsTracker = topExtra ? &topExtra->backingStore : 0;
if (oldBsTracker && oldBsTracker != bsTracker)
oldBsTracker->unregisterWidgetSubtree(this);
if (desktopWidget)
parent = 0;
#ifdef Q_BACKINGSTORE_SUBSURFACES
QTLWExtra *extra = d->maybeTopData();
QWindowSurface *windowSurface = (extra ? extra->windowSurface : 0);
if (newParent && windowSurface) {
QWidgetBackingStore *oldBs = oldtlw->d_func()->maybeBackingStore();
if (oldBs)
oldBs->subSurfaces.removeAll(windowSurface);
if (parent) {
QWidgetBackingStore *newBs = parent->d_func()->maybeBackingStore();
if (newBs)
newBs->subSurfaces.append(windowSurface);
}
}
#endif
if (QWidgetBackingStore *oldBs = oldtlw->d_func()->maybeBackingStore()) {
if (newParent)
oldBs->removeDirtyWidget(this);
// Move the widget and all its static children from
// the old backing store to the new one.
oldBs->moveStaticWidgets(this);
}
if ((QApplicationPrivate::app_compile_version < 0x040200
|| QApplicationPrivate::testAttribute(Qt::AA_ImmediateWidgetCreation))
&& !testAttribute(Qt::WA_WState_Created))
create();
d->reparentFocusWidgets(oldtlw);
setAttribute(Qt::WA_Resized, resized);
if (!testAttribute(Qt::WA_StyleSheet)
&& (!parent || !parent->testAttribute(Qt::WA_StyleSheet))) {
d->resolveFont();
d->resolvePalette();
}
d->resolveLayoutDirection();
d->resolveLocale();
// Note: GL widgets under WGL or EGL will always need a ParentChange
// event to handle recreation/rebinding of the GL context, hence the
// (f & Qt::MSWindowsOwnDC) clause (which is set on QGLWidgets on all
// platforms).
if (newParent
#if defined(Q_WS_WIN) || defined(QT_OPENGL_ES)
|| (f & Qt::MSWindowsOwnDC)
#endif
) {
// propagate enabled updates enabled state to non-windows
if (!isWindow()) {
if (!testAttribute(Qt::WA_ForceDisabled))
d->setEnabled_helper(parent ? parent->isEnabled() : true);
if (!testAttribute(Qt::WA_ForceUpdatesDisabled))
d->setUpdatesEnabled_helper(parent ? parent->updatesEnabled() : true);
}
d->inheritStyle();
// send and post remaining QObject events
if (parent && d->sendChildEvents) {
QChildEvent e(QEvent::ChildAdded, this);
QApplication::sendEvent(parent, &e);
#ifdef QT3_SUPPORT
if (parent->d_func()->pendingChildInsertedEvents.isEmpty()) {
QApplication::postEvent(parent,
new QEvent(QEvent::ChildInsertedRequest),
Qt::HighEventPriority);
}
parent->d_func()->pendingChildInsertedEvents.append(this);
#endif
}
//### already hidden above ---> must probably do something smart on the mac
// #ifdef Q_WS_MAC
// extern bool qt_mac_is_macdrawer(const QWidget *); //qwidget_mac.cpp
// if(!qt_mac_is_macdrawer(q)) //special case
// q->setAttribute(Qt::WA_WState_Hidden);
// #else
// q->setAttribute(Qt::WA_WState_Hidden);
//#endif
if (parent && d->sendChildEvents && d->polished) {
QChildEvent e(QEvent::ChildPolished, this);
QCoreApplication::sendEvent(parent, &e);
}
QEvent e(QEvent::ParentChange);
QApplication::sendEvent(this, &e);
}
if (!wasCreated) {
if (isWindow() || parentWidget()->isVisible())
setAttribute(Qt::WA_WState_Hidden, true);
else if (!testAttribute(Qt::WA_WState_ExplicitShowHide))
setAttribute(Qt::WA_WState_Hidden, false);
}
d->updateIsOpaque();
#ifndef QT_NO_GRAPHICSVIEW
// Embed the widget into a proxy if the parent is embedded.
// ### Doesn't handle reparenting out of an embedded widget.
if (oldtlw->graphicsProxyWidget()) {
if (QGraphicsProxyWidget *ancestorProxy = d->nearestGraphicsProxyWidget(oldtlw))
ancestorProxy->d_func()->unembedSubWindow(this);
}
if (isWindow() && parent && !graphicsProxyWidget() && !bypassGraphicsProxyWidget(this)) {
if (QGraphicsProxyWidget *ancestorProxy = d->nearestGraphicsProxyWidget(parent))
ancestorProxy->d_func()->embedSubWindow(this);
}
#endif
d->inSetParent = false;
}
/*!
Scrolls the widget including its children \a dx pixels to the
right and \a dy downward. Both \a dx and \a dy may be negative.
After scrolling, the widgets will receive paint events for
the areas that need to be repainted. For widgets that Qt knows to
be opaque, this is only the newly exposed parts.
For example, if an opaque widget is scrolled 8 pixels to the left,
only an 8-pixel wide stripe at the right edge needs updating.
Since widgets propagate the contents of their parents by default,
you need to set the \l autoFillBackground property, or use
setAttribute() to set the Qt::WA_OpaquePaintEvent attribute, to make
a widget opaque.
For widgets that use contents propagation, a scroll will cause an
update of the entire scroll area.
\sa {Transparency and Double Buffering}
*/
void QWidget::scroll(int dx, int dy)
{
if ((!updatesEnabled() && children().size() == 0) || !isVisible())
return;
if (dx == 0 && dy == 0)
return;
Q_D(QWidget);
#ifndef QT_NO_GRAPHICSVIEW
if (QGraphicsProxyWidget *proxy = QWidgetPrivate::nearestGraphicsProxyWidget(this)) {
// Graphics View maintains its own dirty region as a list of rects;
// until we can connect item updates directly to the view, we must
// separately add a translated dirty region.
if (!d->dirty.isEmpty()) {
foreach (const QRect &rect, (d->dirty.translated(dx, dy)).rects())
proxy->update(rect);
}
proxy->scroll(dx, dy, proxy->subWidgetRect(this));
return;
}
#endif
d->setDirtyOpaqueRegion();
d->scroll_sys(dx, dy);
}
/*!
\overload
This version only scrolls \a r and does not move the children of
the widget.
If \a r is empty or invalid, the result is undefined.
\sa QScrollArea
*/
void QWidget::scroll(int dx, int dy, const QRect &r)
{
if ((!updatesEnabled() && children().size() == 0) || !isVisible())
return;
if (dx == 0 && dy == 0)
return;
Q_D(QWidget);
#ifndef QT_NO_GRAPHICSVIEW
if (QGraphicsProxyWidget *proxy = QWidgetPrivate::nearestGraphicsProxyWidget(this)) {
// Graphics View maintains its own dirty region as a list of rects;
// until we can connect item updates directly to the view, we must
// separately add a translated dirty region.
if (!d->dirty.isEmpty()) {
foreach (const QRect &rect, (d->dirty.translated(dx, dy) & r).rects())
proxy->update(rect);
}
proxy->scroll(dx, dy, r.translated(proxy->subWidgetRect(this).topLeft().toPoint()));
return;
}
#endif
d->scroll_sys(dx, dy, r);
}
/*!
Repaints the widget directly by calling paintEvent() immediately,
unless updates are disabled or the widget is hidden.
We suggest only using repaint() if you need an immediate repaint,
for example during animation. In almost all circumstances update()
is better, as it permits Qt to optimize for speed and minimize
flicker.
\warning If you call repaint() in a function which may itself be
called from paintEvent(), you may get infinite recursion. The
update() function never causes recursion.
\sa update(), paintEvent(), setUpdatesEnabled()
*/
void QWidget::repaint()
{
repaint(rect());
}
/*! \overload
This version repaints a rectangle (\a x, \a y, \a w, \a h) inside
the widget.
If \a w is negative, it is replaced with \c{width() - x}, and if
\a h is negative, it is replaced width \c{height() - y}.
*/
void QWidget::repaint(int x, int y, int w, int h)
{
if (x > data->crect.width() || y > data->crect.height())
return;
if (w < 0)
w = data->crect.width() - x;
if (h < 0)
h = data->crect.height() - y;
repaint(QRect(x, y, w, h));
}
/*! \overload
This version repaints a rectangle \a rect inside the widget.
*/
void QWidget::repaint(const QRect &rect)
{
Q_D(QWidget);
if (testAttribute(Qt::WA_WState_ConfigPending)) {
update(rect);
return;
}
if (!isVisible() || !updatesEnabled() || rect.isEmpty())
return;
if (hasBackingStoreSupport()) {
#ifdef QT_MAC_USE_COCOA
if (qt_widget_private(this)->isInUnifiedToolbar) {
qt_widget_private(this)->unifiedSurface->renderToolbar(this, true);
return;
}
#endif // QT_MAC_USE_COCOA
QTLWExtra *tlwExtra = window()->d_func()->maybeTopData();
if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore) {
tlwExtra->inRepaint = true;
tlwExtra->backingStore->markDirty(rect, this, true);
tlwExtra->inRepaint = false;
}
} else {
d->repaint_sys(rect);
}
}
/*!
\overload
This version repaints a region \a rgn inside the widget.
*/
void QWidget::repaint(const QRegion &rgn)
{
Q_D(QWidget);
if (testAttribute(Qt::WA_WState_ConfigPending)) {
update(rgn);
return;
}
if (!isVisible() || !updatesEnabled() || rgn.isEmpty())
return;
if (hasBackingStoreSupport()) {
#ifdef QT_MAC_USE_COCOA
if (qt_widget_private(this)->isInUnifiedToolbar) {
qt_widget_private(this)->unifiedSurface->renderToolbar(this, true);
return;
}
#endif // QT_MAC_USE_COCOA
QTLWExtra *tlwExtra = window()->d_func()->maybeTopData();
if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore) {
tlwExtra->inRepaint = true;
tlwExtra->backingStore->markDirty(rgn, this, true);
tlwExtra->inRepaint = false;
}
} else {
d->repaint_sys(rgn);
}
}
/*!
Updates the widget unless updates are disabled or the widget is
hidden.
This function does not cause an immediate repaint; instead it
schedules a paint event for processing when Qt returns to the main
event loop. This permits Qt to optimize for more speed and less
flicker than a call to repaint() does.
Calling update() several times normally results in just one
paintEvent() call.
Qt normally erases the widget's area before the paintEvent() call.
If the Qt::WA_OpaquePaintEvent widget attribute is set, the widget is
responsible for painting all its pixels with an opaque color.
\sa repaint() paintEvent(), setUpdatesEnabled(), {Analog Clock Example}
*/
void QWidget::update()
{
update(rect());
}
/*! \fn void QWidget::update(int x, int y, int w, int h)
\overload
This version updates a rectangle (\a x, \a y, \a w, \a h) inside
the widget.
*/
/*!
\overload
This version updates a rectangle \a rect inside the widget.
*/
void QWidget::update(const QRect &rect)
{
if (!isVisible() || !updatesEnabled())
return;
QRect r = rect & QWidget::rect();
if (r.isEmpty())
return;
if (testAttribute(Qt::WA_WState_InPaintEvent)) {
QApplication::postEvent(this, new QUpdateLaterEvent(r));
return;
}
if (hasBackingStoreSupport()) {
#ifdef QT_MAC_USE_COCOA
if (qt_widget_private(this)->isInUnifiedToolbar) {
qt_widget_private(this)->unifiedSurface->renderToolbar(this, true);
return;
}
#endif // QT_MAC_USE_COCOA
QTLWExtra *tlwExtra = window()->d_func()->maybeTopData();
if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore)
tlwExtra->backingStore->markDirty(r, this);
} else {
d_func()->repaint_sys(r);
}
}
/*!
\overload
This version repaints a region \a rgn inside the widget.
*/
void QWidget::update(const QRegion &rgn)
{
if (!isVisible() || !updatesEnabled() || rgn.isEmpty())
return;
QRegion r = rgn & QWidget::rect();
if (r.isEmpty())
return;
if (testAttribute(Qt::WA_WState_InPaintEvent)) {
QApplication::postEvent(this, new QUpdateLaterEvent(r));
return;
}
if (hasBackingStoreSupport()) {
#ifdef QT_MAC_USE_COCOA
if (qt_widget_private(this)->isInUnifiedToolbar) {
qt_widget_private(this)->unifiedSurface->renderToolbar(this, true);
return;
}
#endif // QT_MAC_USE_COCOA
QTLWExtra *tlwExtra = window()->d_func()->maybeTopData();
if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore)
tlwExtra->backingStore->markDirty(r, this);
} else {
d_func()->repaint_sys(r);
}
}
#ifdef QT3_SUPPORT
/*!
Clear the rectangle at point (\a x, \a y) of width \a w and height
\a h.
\warning This is best done in a paintEvent().
*/
void QWidget::erase_helper(int x, int y, int w, int h)
{
if (testAttribute(Qt::WA_NoSystemBackground) || testAttribute(Qt::WA_UpdatesDisabled) || !testAttribute(Qt::WA_WState_Visible))
return;
if (w < 0)
w = data->crect.width() - x;
if (h < 0)
h = data->crect.height() - y;
if (w != 0 && h != 0) {
QPainter p(this);
p.eraseRect(QRect(x, y, w, h));
}
}
/*!
\overload
Clear the given region, \a rgn.
Drawing may only take place in a QPaintEvent. Overload
paintEvent() to do your erasing and call update() to schedule a
replaint whenever necessary. See also QPainter.
*/
void QWidget::erase(const QRegion& rgn)
{
if (testAttribute(Qt::WA_NoSystemBackground) || testAttribute(Qt::WA_UpdatesDisabled) || !testAttribute(Qt::WA_WState_Visible))
return;
QPainter p(this);
p.setClipRegion(rgn);
p.eraseRect(rgn.boundingRect());
}
void QWidget::drawText_helper(int x, int y, const QString &str)
{
if(!testAttribute(Qt::WA_WState_Visible))
return;
QPainter paint(this);
paint.drawText(x, y, str);
}
/*!
Closes the widget.
Use the no-argument overload instead.
*/
bool QWidget::close(bool alsoDelete)
{
QPointer<QWidget> that = this;
bool accepted = close();
if (alsoDelete && accepted && that)
deleteLater();
return accepted;
}
void QWidget::setIcon(const QPixmap &i)
{
setWindowIcon(i);
}
/*!
Return's the widget's icon.
Use windowIcon() instead.
*/
const QPixmap *QWidget::icon() const
{
Q_D(const QWidget);
return (d->extra && d->extra->topextra) ? d->extra->topextra->iconPixmap : 0;
}
#endif // QT3_SUPPORT
/*!
\internal
This just sets the corresponding attribute bit to 1 or 0
*/
static void setAttribute_internal(Qt::WidgetAttribute attribute, bool on, QWidgetData *data,
QWidgetPrivate *d)
{
if (attribute < int(8*sizeof(uint))) {
if (on)
data->widget_attributes |= (1<<attribute);
else
data->widget_attributes &= ~(1<<attribute);
} else {
const int x = attribute - 8*sizeof(uint);
const int int_off = x / (8*sizeof(uint));
if (on)
d->high_attributes[int_off] |= (1<<(x-(int_off*8*sizeof(uint))));
else
d->high_attributes[int_off] &= ~(1<<(x-(int_off*8*sizeof(uint))));
}
}
/*!
Sets the attribute \a attribute on this widget if \a on is true;
otherwise clears the attribute.
\sa testAttribute()
*/
void QWidget::setAttribute(Qt::WidgetAttribute attribute, bool on)
{
if (testAttribute(attribute) == on)
return;
Q_D(QWidget);
Q_ASSERT_X(sizeof(d->high_attributes)*8 >= (Qt::WA_AttributeCount - sizeof(uint)*8),
"QWidget::setAttribute(WidgetAttribute, bool)",
"QWidgetPrivate::high_attributes[] too small to contain all attributes in WidgetAttribute");
#ifdef Q_WS_WIN
// ### Don't use PaintOnScreen+paintEngine() to do native painting in 5.0
if (attribute == Qt::WA_PaintOnScreen && on && !inherits("QGLWidget")) {
// see qwidget_win.cpp, ::paintEngine for details
paintEngine();
if (d->noPaintOnScreen)
return;
}
#endif
setAttribute_internal(attribute, on, data, d);
switch (attribute) {
#ifndef QT_NO_DRAGANDDROP
case Qt::WA_AcceptDrops: {
if (on && !testAttribute(Qt::WA_DropSiteRegistered))
setAttribute(Qt::WA_DropSiteRegistered, true);
else if (!on && (isWindow() || !parentWidget() || !parentWidget()->testAttribute(Qt::WA_DropSiteRegistered)))
setAttribute(Qt::WA_DropSiteRegistered, false);
QEvent e(QEvent::AcceptDropsChange);
QApplication::sendEvent(this, &e);
break;
}
case Qt::WA_DropSiteRegistered: {
d->registerDropSite(on);
for (int i = 0; i < d->children.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(d->children.at(i));
if (w && !w->isWindow() && !w->testAttribute(Qt::WA_AcceptDrops) && w->testAttribute(Qt::WA_DropSiteRegistered) != on)
w->setAttribute(Qt::WA_DropSiteRegistered, on);
}
break;
}
#endif
case Qt::WA_NoChildEventsForParent:
d->sendChildEvents = !on;
break;
case Qt::WA_NoChildEventsFromChildren:
d->receiveChildEvents = !on;
break;
case Qt::WA_MacBrushedMetal:
#ifdef Q_WS_MAC
d->setStyle_helper(style(), false, true); // Make sure things get unpolished/polished correctly.
// fall through since changing the metal attribute affects the opaque size grip.
case Qt::WA_MacOpaqueSizeGrip:
d->macUpdateOpaqueSizeGrip();
break;
case Qt::WA_MacShowFocusRect:
if (hasFocus()) {
clearFocus();
setFocus();
}
break;
case Qt::WA_Hover:
qt_mac_update_mouseTracking(this);
break;
#endif
case Qt::WA_MacAlwaysShowToolWindow:
#ifdef Q_WS_MAC
d->macUpdateHideOnSuspend();
#endif
break;
case Qt::WA_MacNormalSize:
case Qt::WA_MacSmallSize:
case Qt::WA_MacMiniSize:
#ifdef Q_WS_MAC
{
// We can only have one of these set at a time
const Qt::WidgetAttribute MacSizes[] = { Qt::WA_MacNormalSize, Qt::WA_MacSmallSize,
Qt::WA_MacMiniSize };
for (int i = 0; i < 3; ++i) {
if (MacSizes[i] != attribute)
setAttribute_internal(MacSizes[i], false, data, d);
}
d->macUpdateSizeAttribute();
}
#endif
break;
case Qt::WA_ShowModal:
if (!on) {
if (isVisible())
QApplicationPrivate::leaveModal(this);
// reset modality type to Modeless when clearing WA_ShowModal
data->window_modality = Qt::NonModal;
} else if (data->window_modality == Qt::NonModal) {
// determine the modality type if it hasn't been set prior
// to setting WA_ShowModal. set the default to WindowModal
// if we are the child of a group leader; otherwise use
// ApplicationModal.
QWidget *w = parentWidget();
if (w)
w = w->window();
while (w && !w->testAttribute(Qt::WA_GroupLeader)) {
w = w->parentWidget();
if (w)
w = w->window();
}
data->window_modality = (w && w->testAttribute(Qt::WA_GroupLeader))
? Qt::WindowModal
: Qt::ApplicationModal;
// Some window managers does not allow us to enter modal after the
// window is showing. Therefore, to be consistent, we cannot call
// QApplicationPrivate::enterModal(this) here. The window must be
// hidden before changing modality.
}
if (testAttribute(Qt::WA_WState_Created)) {
// don't call setModal_sys() before create_sys()
d->setModal_sys();
}
break;
case Qt::WA_MouseTracking: {
QEvent e(QEvent::MouseTrackingChange);
QApplication::sendEvent(this, &e);
break; }
case Qt::WA_NativeWindow: {
#ifndef QT_NO_IM
QWidget *focusWidget = d->effectiveFocusWidget();
QInputContext *ic = 0;
if (on && !internalWinId() && hasFocus()
&& focusWidget->testAttribute(Qt::WA_InputMethodEnabled)) {
ic = focusWidget->d_func()->inputContext();
if (ic) {
ic->reset();
ic->setFocusWidget(0);
}
}
if (!qApp->testAttribute(Qt::AA_DontCreateNativeWidgetSiblings) && parentWidget()
#if defined(Q_WS_MAC) && defined(QT_MAC_USE_COCOA)
// On Mac, toolbars inside the unified title bar will never overlap with
// siblings in the content view. So we skip enforce native siblings in that case
&& !d->isInUnifiedToolbar && parentWidget()->isWindow()
#endif // Q_WS_MAC && QT_MAC_USE_COCOA
)
parentWidget()->d_func()->enforceNativeChildren();
if (on && !internalWinId() && testAttribute(Qt::WA_WState_Created))
d->createWinId();
if (ic && isEnabled() && focusWidget->isEnabled()
&& focusWidget->testAttribute(Qt::WA_InputMethodEnabled)) {
ic->setFocusWidget(focusWidget);
}
#endif //QT_NO_IM
break;
}
case Qt::WA_PaintOnScreen:
d->updateIsOpaque();
#if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_OS_SYMBIAN)
// Recreate the widget if it's already created as an alien widget and
// WA_PaintOnScreen is enabled. Paint on screen widgets must have win id.
// So must their children.
if (on) {
setAttribute(Qt::WA_NativeWindow);
d->enforceNativeChildren();
}
#endif
// fall through
case Qt::WA_OpaquePaintEvent:
d->updateIsOpaque();
break;
case Qt::WA_NoSystemBackground:
d->updateIsOpaque();
// fall through...
case Qt::WA_UpdatesDisabled:
d->updateSystemBackground();
break;
case Qt::WA_TransparentForMouseEvents:
#ifdef Q_WS_MAC
d->macUpdateIgnoreMouseEvents();
#endif
break;
case Qt::WA_InputMethodEnabled: {
#ifndef QT_NO_IM
QWidget *focusWidget = d->effectiveFocusWidget();
QInputContext *ic = focusWidget->d_func()->assignedInputContext();
if (!ic && (!on || hasFocus()))
ic = focusWidget->d_func()->inputContext();
if (ic) {
if (on && hasFocus() && ic->focusWidget() != focusWidget && isEnabled()
&& focusWidget->testAttribute(Qt::WA_InputMethodEnabled)) {
ic->setFocusWidget(focusWidget);
} else if (!on && ic->focusWidget() == focusWidget) {
ic->reset();
ic->setFocusWidget(0);
}
}
#endif //QT_NO_IM
break;
}
case Qt::WA_WindowPropagation:
d->resolvePalette();
d->resolveFont();
d->resolveLocale();
break;
#ifdef Q_WS_X11
case Qt::WA_NoX11EventCompression:
if (!d->extra)
d->createExtra();
d->extra->compress_events = on;
break;
case Qt::WA_X11OpenGLOverlay:
d->updateIsOpaque();
break;
case Qt::WA_X11DoNotAcceptFocus:
if (testAttribute(Qt::WA_WState_Created))
d->updateX11AcceptFocus();
break;
#endif
case Qt::WA_DontShowOnScreen: {
if (on && isVisible()) {
// Make sure we keep the current state and only hide the widget
// from the desktop. show_sys will only update platform specific
// attributes at this point.
d->hide_sys();
#ifdef Q_WS_QWS
// Release the region for this window from qws if the widget has
// been shown before the attribute was set.
if (QWSWindowSurface *surface = static_cast<QWSWindowSurface *>(windowSurface())) {
QWidget::qwsDisplay()->requestRegion(surface->winId(), surface->key(),
surface->permanentState(), QRegion());
}
#endif
d->show_sys();
}
break;
}
#ifdef Q_WS_X11
case Qt::WA_X11NetWmWindowTypeDesktop:
case Qt::WA_X11NetWmWindowTypeDock:
case Qt::WA_X11NetWmWindowTypeToolBar:
case Qt::WA_X11NetWmWindowTypeMenu:
case Qt::WA_X11NetWmWindowTypeUtility:
case Qt::WA_X11NetWmWindowTypeSplash:
case Qt::WA_X11NetWmWindowTypeDialog:
case Qt::WA_X11NetWmWindowTypeDropDownMenu:
case Qt::WA_X11NetWmWindowTypePopupMenu:
case Qt::WA_X11NetWmWindowTypeToolTip:
case Qt::WA_X11NetWmWindowTypeNotification:
case Qt::WA_X11NetWmWindowTypeCombo:
case Qt::WA_X11NetWmWindowTypeDND:
if (testAttribute(Qt::WA_WState_Created))
d->setNetWmWindowTypes();
break;
#endif
case Qt::WA_StaticContents:
if (QWidgetBackingStore *bs = d->maybeBackingStore()) {
if (on)
bs->addStaticWidget(this);
else
bs->removeStaticWidget(this);
}
break;
case Qt::WA_TranslucentBackground:
#if defined(Q_OS_SYMBIAN)
setAttribute(Qt::WA_NoSystemBackground, on);
#else
if (on) {
setAttribute(Qt::WA_NoSystemBackground);
d->updateIsTranslucent();
}
#endif
break;
case Qt::WA_AcceptTouchEvents:
#if defined(Q_WS_WIN) || defined(Q_WS_MAC) || defined(Q_OS_SYMBIAN)
if (on)
d->registerTouchWindow();
#endif
break;
case Qt::WA_LockPortraitOrientation:
case Qt::WA_LockLandscapeOrientation:
case Qt::WA_AutoOrientation: {
const Qt::WidgetAttribute orientations[3] = {
Qt::WA_LockPortraitOrientation,
Qt::WA_LockLandscapeOrientation,
Qt::WA_AutoOrientation
};
if (on) {
// We can only have one of these set at a time
for (int i = 0; i < 3; ++i) {
if (orientations[i] != attribute)
setAttribute_internal(orientations[i], false, data, d);
}
}
#ifdef Q_OS_BLACKBERRY
if (testAttribute(Qt::WA_AutoOrientation)) {
navigator_rotation_lock(false);
} else {
#ifdef Q_OS_BLACKBERRY_TABLET
const bool portraitLocked = testAttribute(Qt::WA_LockPortraitOrientation);
orientation_direction_t direction;
orientation_get(&direction, 0);
int rotation = 0;
switch (direction) {
case ORIENTATION_TOP_UP:
case ORIENTATION_RIGHT_UP:
rotation = portraitLocked ? 90 : 0;
break;
case ORIENTATION_BOTTOM_UP:
case ORIENTATION_LEFT_UP:
rotation = portraitLocked ? 270 : 180;
break;
default:
break;
}
navigator_set_orientation(rotation, 0);
#else
navigator_set_orientation_mode((testAttribute(Qt::WA_LockPortraitOrientation) ?
NAVIGATOR_PORTRAIT : NAVIGATOR_LANDSCAPE), 0);
#endif // Q_OS_BLACKBERRY_TABLET
navigator_rotation_lock(true);
}
#endif // Q_OS_BLACKBERRY
#ifdef Q_WS_S60
CAknAppUiBase* appUi = static_cast<CAknAppUiBase*>(CEikonEnv::Static()->EikAppUi());
const CAknAppUiBase::TAppUiOrientation s60orientations[] = {
CAknAppUiBase::EAppUiOrientationPortrait,
CAknAppUiBase::EAppUiOrientationLandscape,
CAknAppUiBase::EAppUiOrientationAutomatic
};
CAknAppUiBase::TAppUiOrientation s60orientation = CAknAppUiBase::EAppUiOrientationUnspecified;
for (int i = 0; i < 3; ++i) {
if (testAttribute(orientations[i])) {
s60orientation = s60orientations[i];
break;
}
}
QT_TRAP_THROWING(appUi->SetOrientationL(s60orientation));
S60->orientationSet = true;
QSymbianControl *window = static_cast<QSymbianControl *>(internalWinId());
if (window)
window->ensureFixNativeOrientation();
#endif
break;
}
default:
break;
}
}
/*! \fn bool QWidget::testAttribute(Qt::WidgetAttribute attribute) const
Returns true if attribute \a attribute is set on this widget;
otherwise returns false.
\sa setAttribute()
*/
bool QWidget::testAttribute_helper(Qt::WidgetAttribute attribute) const
{
Q_D(const QWidget);
const int x = attribute - 8*sizeof(uint);
const int int_off = x / (8*sizeof(uint));
return (d->high_attributes[int_off] & (1<<(x-(int_off*8*sizeof(uint)))));
}
/*!
\property QWidget::windowOpacity
\brief The level of opacity for the window.
The valid range of opacity is from 1.0 (completely opaque) to
0.0 (completely transparent).
By default the value of this property is 1.0.
This feature is available on Embedded Linux, Mac OS X, Windows,
and X11 platforms that support the Composite extension.
This feature is not available on Windows CE.
Note that under X11 you need to have a composite manager running,
and the X11 specific _NET_WM_WINDOW_OPACITY atom needs to be
supported by the window manager you are using.
\warning Changing this property from opaque to transparent might issue a
paint event that needs to be processed before the window is displayed
correctly. This affects mainly the use of QPixmap::grabWindow(). Also note
that semi-transparent windows update and resize significantly slower than
opaque windows.
\sa setMask()
*/
qreal QWidget::windowOpacity() const
{
Q_D(const QWidget);
return (isWindow() && d->maybeTopData()) ? d->maybeTopData()->opacity / qreal(255.) : qreal(1.0);
}
void QWidget::setWindowOpacity(qreal opacity)
{
Q_D(QWidget);
if (!isWindow())
return;
opacity = qBound(qreal(0.0), opacity, qreal(1.0));
QTLWExtra *extra = d->topData();
extra->opacity = uint(opacity * 255);
setAttribute(Qt::WA_WState_WindowOpacitySet);
#ifndef Q_WS_QWS
if (!testAttribute(Qt::WA_WState_Created))
return;
#endif
#ifndef QT_NO_GRAPHICSVIEW
if (QGraphicsProxyWidget *proxy = graphicsProxyWidget()) {
// Avoid invalidating the cache if set.
if (proxy->cacheMode() == QGraphicsItem::NoCache)
proxy->update();
else if (QGraphicsScene *scene = proxy->scene())
scene->update(proxy->sceneBoundingRect());
return;
}
#endif
d->setWindowOpacity_sys(opacity);
}
/*!
\property QWidget::windowModified
\brief whether the document shown in the window has unsaved changes
A modified window is a window whose content has changed but has
not been saved to disk. This flag will have different effects
varied by the platform. On Mac OS X the close button will have a
modified look; on other platforms, the window title will have an
'*' (asterisk).
The window title must contain a "[*]" placeholder, which
indicates where the '*' should appear. Normally, it should appear
right after the file name (e.g., "document1.txt[*] - Text
Editor"). If the window isn't modified, the placeholder is simply
removed.
Note that if a widget is set as modified, all its ancestors will
also be set as modified. However, if you call \c
{setWindowModified(false)} on a widget, this will not propagate to
its parent because other children of the parent might have been
modified.
\sa windowTitle, {Application Example}, {SDI Example}, {MDI Example}
*/
bool QWidget::isWindowModified() const
{
return testAttribute(Qt::WA_WindowModified);
}
void QWidget::setWindowModified(bool mod)
{
Q_D(QWidget);
setAttribute(Qt::WA_WindowModified, mod);
#ifndef Q_WS_MAC
if (!windowTitle().contains(QLatin1String("[*]")) && mod)
qWarning("QWidget::setWindowModified: The window title does not contain a '[*]' placeholder");
#endif
d->setWindowTitle_helper(windowTitle());
d->setWindowIconText_helper(windowIconText());
#ifdef Q_WS_MAC
d->setWindowModified_sys(mod);
#endif
QEvent e(QEvent::ModifiedChange);
QApplication::sendEvent(this, &e);
}
#ifndef QT_NO_TOOLTIP
/*!
\property QWidget::toolTip
\brief the widget's tooltip
Note that by default tooltips are only shown for widgets that are
children of the active window. You can change this behavior by
setting the attribute Qt::WA_AlwaysShowToolTips on the \e window,
not on the widget with the tooltip.
If you want to control a tooltip's behavior, you can intercept the
event() function and catch the QEvent::ToolTip event (e.g., if you
want to customize the area for which the tooltip should be shown).
By default, this property contains an empty string.
\sa QToolTip statusTip whatsThis
*/
void QWidget::setToolTip(const QString &s)
{
Q_D(QWidget);
d->toolTip = s;
QEvent event(QEvent::ToolTipChange);
QApplication::sendEvent(this, &event);
}
QString QWidget::toolTip() const
{
Q_D(const QWidget);
return d->toolTip;
}
#endif // QT_NO_TOOLTIP
#ifndef QT_NO_STATUSTIP
/*!
\property QWidget::statusTip
\brief the widget's status tip
By default, this property contains an empty string.
\sa toolTip whatsThis
*/
void QWidget::setStatusTip(const QString &s)
{
Q_D(QWidget);
d->statusTip = s;
}
QString QWidget::statusTip() const
{
Q_D(const QWidget);
return d->statusTip;
}
#endif // QT_NO_STATUSTIP
#ifndef QT_NO_WHATSTHIS
/*!
\property QWidget::whatsThis
\brief the widget's What's This help text.
By default, this property contains an empty string.
\sa QWhatsThis QWidget::toolTip QWidget::statusTip
*/
void QWidget::setWhatsThis(const QString &s)
{
Q_D(QWidget);
d->whatsThis = s;
}
QString QWidget::whatsThis() const
{
Q_D(const QWidget);
return d->whatsThis;
}
#endif // QT_NO_WHATSTHIS
#ifndef QT_NO_ACCESSIBILITY
/*!
\property QWidget::accessibleName
\brief the widget's name as seen by assistive technologies
This property is used by accessible clients to identify, find, or announce
the widget for accessible clients.
By default, this property contains an empty string.
\sa QAccessibleInterface::text()
*/
void QWidget::setAccessibleName(const QString &name)
{
Q_D(QWidget);
d->accessibleName = name;
QAccessible::updateAccessibility(this, 0, QAccessible::NameChanged);
}
QString QWidget::accessibleName() const
{
Q_D(const QWidget);
return d->accessibleName;
}
/*!
\property QWidget::accessibleDescription
\brief the widget's description as seen by assistive technologies
By default, this property contains an empty string.
\sa QAccessibleInterface::text()
*/
void QWidget::setAccessibleDescription(const QString &description)
{
Q_D(QWidget);
d->accessibleDescription = description;
QAccessible::updateAccessibility(this, 0, QAccessible::DescriptionChanged);
}
QString QWidget::accessibleDescription() const
{
Q_D(const QWidget);
return d->accessibleDescription;
}
#endif // QT_NO_ACCESSIBILITY
#ifndef QT_NO_SHORTCUT
/*!
Adds a shortcut to Qt's shortcut system that watches for the given
\a key sequence in the given \a context. If the \a context is
Qt::ApplicationShortcut, the shortcut applies to the application as a
whole. Otherwise, it is either local to this widget, Qt::WidgetShortcut,
or to the window itself, Qt::WindowShortcut.
If the same \a key sequence has been grabbed by several widgets,
when the \a key sequence occurs a QEvent::Shortcut event is sent
to all the widgets to which it applies in a non-deterministic
order, but with the ``ambiguous'' flag set to true.
\warning You should not normally need to use this function;
instead create \l{QAction}s with the shortcut key sequences you
require (if you also want equivalent menu options and toolbar
buttons), or create \l{QShortcut}s if you just need key sequences.
Both QAction and QShortcut handle all the event filtering for you,
and provide signals which are triggered when the user triggers the
key sequence, so are much easier to use than this low-level
function.
\sa releaseShortcut() setShortcutEnabled()
*/
int QWidget::grabShortcut(const QKeySequence &key, Qt::ShortcutContext context)
{
Q_ASSERT(qApp);
if (key.isEmpty())
return 0;
setAttribute(Qt::WA_GrabbedShortcut);
return qApp->d_func()->shortcutMap.addShortcut(this, key, context);
}
/*!
Removes the shortcut with the given \a id from Qt's shortcut
system. The widget will no longer receive QEvent::Shortcut events
for the shortcut's key sequence (unless it has other shortcuts
with the same key sequence).
\warning You should not normally need to use this function since
Qt's shortcut system removes shortcuts automatically when their
parent widget is destroyed. It is best to use QAction or
QShortcut to handle shortcuts, since they are easier to use than
this low-level function. Note also that this is an expensive
operation.
\sa grabShortcut() setShortcutEnabled()
*/
void QWidget::releaseShortcut(int id)
{
Q_ASSERT(qApp);
if (id)
qApp->d_func()->shortcutMap.removeShortcut(id, this, 0);
}
/*!
If \a enable is true, the shortcut with the given \a id is
enabled; otherwise the shortcut is disabled.
\warning You should not normally need to use this function since
Qt's shortcut system enables/disables shortcuts automatically as
widgets become hidden/visible and gain or lose focus. It is best
to use QAction or QShortcut to handle shortcuts, since they are
easier to use than this low-level function.
\sa grabShortcut() releaseShortcut()
*/
void QWidget::setShortcutEnabled(int id, bool enable)
{
Q_ASSERT(qApp);
if (id)
qApp->d_func()->shortcutMap.setShortcutEnabled(enable, id, this, 0);
}
/*!
\since 4.2
If \a enable is true, auto repeat of the shortcut with the
given \a id is enabled; otherwise it is disabled.
\sa grabShortcut() releaseShortcut()
*/
void QWidget::setShortcutAutoRepeat(int id, bool enable)
{
Q_ASSERT(qApp);
if (id)
qApp->d_func()->shortcutMap.setShortcutAutoRepeat(enable, id, this, 0);
}
#endif // QT_NO_SHORTCUT
/*!
Updates the widget's micro focus.
\sa QInputContext
*/
void QWidget::updateMicroFocus()
{
#if !defined(QT_NO_IM) && (defined(Q_WS_X11) || defined(Q_WS_QWS) || defined(Q_OS_SYMBIAN))
Q_D(QWidget);
// and optimization to update input context only it has already been created.
if (d->assignedInputContext() || qApp->d_func()->inputContext) {
QInputContext *ic = inputContext();
if (ic)
ic->update();
}
#endif
#ifndef QT_NO_ACCESSIBILITY
if (isVisible()) {
// ##### is this correct
QAccessible::updateAccessibility(this, 0, QAccessible::StateChanged);
}
#endif
}
#if defined (Q_WS_WIN)
/*!
Returns the window system handle of the widget, for low-level
access. Using this function is not portable.
An HDC acquired with getDC() has to be released with releaseDC().
\warning Using this function is not portable.
*/
HDC QWidget::getDC() const
{
Q_D(const QWidget);
if (d->hd)
return (HDC) d->hd;
return GetDC(winId());
}
/*!
Releases the HDC \a hdc acquired by a previous call to getDC().
\warning Using this function is not portable.
*/
void QWidget::releaseDC(HDC hdc) const
{
Q_D(const QWidget);
// If its the widgets own dc, it will be released elsewhere. If
// its a different HDC we release it and issue a warning if it
// fails.
if (hdc != d->hd && !ReleaseDC(winId(), hdc))
qErrnoWarning("QWidget::releaseDC(): failed to release HDC");
}
#else
/*!
Returns the window system handle of the widget, for low-level
access. Using this function is not portable.
The HANDLE type varies with platform; see \c qwindowdefs.h for
details.
*/
Qt::HANDLE QWidget::handle() const
{
Q_D(const QWidget);
if (!internalWinId() && testAttribute(Qt::WA_WState_Created))
(void)winId(); // enforce native window
return d->hd;
}
#endif
/*!
Raises this widget to the top of the parent widget's stack.
After this call the widget will be visually in front of any
overlapping sibling widgets.
\note When using activateWindow(), you can call this function to
ensure that the window is stacked on top.
\sa lower(), stackUnder()
*/
void QWidget::raise()
{
Q_D(QWidget);
if (!isWindow()) {
QWidget *p = parentWidget();
const int parentChildCount = p->d_func()->children.size();
if (parentChildCount < 2)
return;
const int from = p->d_func()->children.indexOf(this);
Q_ASSERT(from >= 0);
// Do nothing if the widget is already in correct stacking order _and_ created.
if (from != parentChildCount -1)
p->d_func()->children.move(from, parentChildCount - 1);
if (!testAttribute(Qt::WA_WState_Created) && p->testAttribute(Qt::WA_WState_Created))
create();
else if (from == parentChildCount - 1)
return;
QRegion region(rect());
d->subtractOpaqueSiblings(region);
d->invalidateBuffer(region);
}
if (testAttribute(Qt::WA_WState_Created))
d->raise_sys();
QEvent e(QEvent::ZOrderChange);
QApplication::sendEvent(this, &e);
}
/*!
Lowers the widget to the bottom of the parent widget's stack.
After this call the widget will be visually behind (and therefore
obscured by) any overlapping sibling widgets.
\sa raise(), stackUnder()
*/
void QWidget::lower()
{
Q_D(QWidget);
if (!isWindow()) {
QWidget *p = parentWidget();
const int parentChildCount = p->d_func()->children.size();
if (parentChildCount < 2)
return;
const int from = p->d_func()->children.indexOf(this);
Q_ASSERT(from >= 0);
// Do nothing if the widget is already in correct stacking order _and_ created.
if (from != 0)
p->d_func()->children.move(from, 0);
if (!testAttribute(Qt::WA_WState_Created) && p->testAttribute(Qt::WA_WState_Created))
create();
else if (from == 0)
return;
}
if (testAttribute(Qt::WA_WState_Created))
d->lower_sys();
QEvent e(QEvent::ZOrderChange);
QApplication::sendEvent(this, &e);
}
/*!
Places the widget under \a w in the parent widget's stack.
To make this work, the widget itself and \a w must be siblings.
\sa raise(), lower()
*/
void QWidget::stackUnder(QWidget* w)
{
Q_D(QWidget);
QWidget *p = parentWidget();
if (!w || isWindow() || p != w->parentWidget() || this == w)
return;
if (p) {
int from = p->d_func()->children.indexOf(this);
int to = p->d_func()->children.indexOf(w);
Q_ASSERT(from >= 0);
Q_ASSERT(to >= 0);
if (from < to)
--to;
// Do nothing if the widget is already in correct stacking order _and_ created.
if (from != to)
p->d_func()->children.move(from, to);
if (!testAttribute(Qt::WA_WState_Created) && p->testAttribute(Qt::WA_WState_Created))
create();
else if (from == to)
return;
}
if (testAttribute(Qt::WA_WState_Created))
d->stackUnder_sys(w);
QEvent e(QEvent::ZOrderChange);
QApplication::sendEvent(this, &e);
}
void QWidget::styleChange(QStyle&) { }
void QWidget::enabledChange(bool) { } // compat
void QWidget::paletteChange(const QPalette &) { } // compat
void QWidget::fontChange(const QFont &) { } // compat
void QWidget::windowActivationChange(bool) { } // compat
void QWidget::languageChange() { } // compat
/*!
\enum QWidget::BackgroundOrigin
\compat
\value WidgetOrigin
\value ParentOrigin
\value WindowOrigin
\value AncestorOrigin
*/
/*!
\fn bool QWidget::isVisibleToTLW() const
Use isVisible() instead.
*/
/*!
\fn void QWidget::iconify()
Use showMinimized() instead.
*/
/*!
\fn void QWidget::constPolish() const
Use ensurePolished() instead.
*/
/*!
\fn void QWidget::reparent(QWidget *parent, Qt::WindowFlags f, const QPoint &p, bool showIt)
Use setParent() to change the parent or the widget's widget flags;
use move() to move the widget, and use show() to show the widget.
*/
/*!
\fn void QWidget::reparent(QWidget *parent, const QPoint &p, bool showIt)
Use setParent() to change the parent; use move() to move the
widget, and use show() to show the widget.
*/
/*!
\fn void QWidget::recreate(QWidget *parent, Qt::WindowFlags f, const QPoint & p, bool showIt)
Use setParent() to change the parent or the widget's widget flags;
use move() to move the widget, and use show() to show the widget.
*/
/*!
\fn bool QWidget::hasMouse() const
Use testAttribute(Qt::WA_UnderMouse) instead.
*/
/*!
\fn bool QWidget::ownCursor() const
Use testAttribute(Qt::WA_SetCursor) instead.
*/
/*!
\fn bool QWidget::ownFont() const
Use testAttribute(Qt::WA_SetFont) instead.
*/
/*!
\fn void QWidget::unsetFont()
Use setFont(QFont()) instead.
*/
/*!
\fn bool QWidget::ownPalette() const
Use testAttribute(Qt::WA_SetPalette) instead.
*/
/*!
\fn void QWidget::unsetPalette()
Use setPalette(QPalette()) instead.
*/
/*!
\fn void QWidget::setEraseColor(const QColor &color)
Use the palette instead.
\oldcode
widget->setEraseColor(color);
\newcode
QPalette palette;
palette.setColor(widget->backgroundRole(), color);
widget->setPalette(palette);
\endcode
*/
/*!
\fn void QWidget::setErasePixmap(const QPixmap &pixmap)
Use the palette instead.
\oldcode
widget->setErasePixmap(pixmap);
\newcode
QPalette palette;
palette.setBrush(widget->backgroundRole(), QBrush(pixmap));
widget->setPalette(palette);
\endcode
*/
/*!
\fn void QWidget::setPaletteForegroundColor(const QColor &color)
Use the palette directly.
\oldcode
widget->setPaletteForegroundColor(color);
\newcode
QPalette palette;
palette.setColor(widget->foregroundRole(), color);
widget->setPalette(palette);
\endcode
*/
/*!
\fn void QWidget::setPaletteBackgroundColor(const QColor &color)
Use the palette directly.
\oldcode
widget->setPaletteBackgroundColor(color);
\newcode
QPalette palette;
palette.setColor(widget->backgroundRole(), color);
widget->setPalette(palette);
\endcode
*/
/*!
\fn void QWidget::setPaletteBackgroundPixmap(const QPixmap &pixmap)
Use the palette directly.
\oldcode
widget->setPaletteBackgroundPixmap(pixmap);
\newcode
QPalette palette;
palette.setBrush(widget->backgroundRole(), QBrush(pixmap));
widget->setPalette(palette);
\endcode
*/
/*!
\fn void QWidget::setBackgroundPixmap(const QPixmap &pixmap)
Use the palette instead.
\oldcode
widget->setBackgroundPixmap(pixmap);
\newcode
QPalette palette;
palette.setBrush(widget->backgroundRole(), QBrush(pixmap));
widget->setPalette(palette);
\endcode
*/
/*!
\fn void QWidget::setBackgroundColor(const QColor &color)
Use the palette instead.
\oldcode
widget->setBackgroundColor(color);
\newcode
QPalette palette;
palette.setColor(widget->backgroundRole(), color);
widget->setPalette(palette);
\endcode
*/
/*!
\fn QColorGroup QWidget::colorGroup() const
Use QColorGroup(palette()) instead.
*/
/*!
\fn QWidget *QWidget::parentWidget(bool sameWindow) const
Use the no-argument overload instead.
*/
/*!
\fn void QWidget::setKeyCompression(bool b)
Use setAttribute(Qt::WA_KeyCompression, b) instead.
*/
/*!
\fn void QWidget::setFont(const QFont &f, bool b)
Use the single-argument overload instead.
*/
/*!
\fn void QWidget::setPalette(const QPalette &p, bool b)
Use the single-argument overload instead.
*/
/*!
\fn void QWidget::setBackgroundOrigin(BackgroundOrigin background)
\obsolete
*/
/*!
\fn BackgroundOrigin QWidget::backgroundOrigin() const
\obsolete
Always returns \c WindowOrigin.
*/
/*!
\fn QPoint QWidget::backgroundOffset() const
\obsolete
Always returns QPoint().
*/
/*!
\fn void QWidget::repaint(bool b)
The boolean parameter \a b is ignored. Use the no-argument overload instead.
*/
/*!
\fn void QWidget::repaint(int x, int y, int w, int h, bool b)
The boolean parameter \a b is ignored. Use the four-argument overload instead.
*/
/*!
\fn void QWidget::repaint(const QRect &r, bool b)
The boolean parameter \a b is ignored. Use the single rect-argument overload instead.
*/
/*!
\fn void QWidget::repaint(const QRegion &rgn, bool b)
The boolean parameter \a b is ignored. Use the single region-argument overload instead.
*/
/*!
\fn void QWidget::erase()
Drawing may only take place in a QPaintEvent. Overload
paintEvent() to do your erasing and call update() to schedule a
replaint whenever necessary. See also QPainter.
*/
/*!
\fn void QWidget::erase(int x, int y, int w, int h)
Drawing may only take place in a QPaintEvent. Overload
paintEvent() to do your erasing and call update() to schedule a
replaint whenever necessary. See also QPainter.
*/
/*!
\fn void QWidget::erase(const QRect &rect)
Drawing may only take place in a QPaintEvent. Overload
paintEvent() to do your erasing and call update() to schedule a
replaint whenever necessary. See also QPainter.
*/
/*!
\fn void QWidget::drawText(const QPoint &p, const QString &s)
Drawing may only take place in a QPaintEvent. Overload
paintEvent() to do your drawing and call update() to schedule a
replaint whenever necessary. See also QPainter.
*/
/*!
\fn void QWidget::drawText(int x, int y, const QString &s)
Drawing may only take place in a QPaintEvent. Overload
paintEvent() to do your drawing and call update() to schedule a
replaint whenever necessary. See also QPainter.
*/
/*!
\fn QWidget *QWidget::childAt(const QPoint &p, bool includeThis) const
Use the single point argument overload instead.
*/
/*!
\fn void QWidget::setCaption(const QString &c)
Use setWindowTitle() instead.
*/
/*!
\fn void QWidget::setIcon(const QPixmap &i)
Use setWindowIcon() instead.
*/
/*!
\fn void QWidget::setIconText(const QString &it)
Use setWindowIconText() instead.
*/
/*!
\fn QString QWidget::caption() const
Use windowTitle() instead.
*/
/*!
\fn QString QWidget::iconText() const
Use windowIconText() instead.
*/
/*!
\fn bool QWidget::isTopLevel() const
\obsolete
Use isWindow() instead.
*/
/*!
\fn bool QWidget::isRightToLeft() const
\internal
*/
/*!
\fn bool QWidget::isLeftToRight() const
\internal
*/
/*!
\fn void QWidget::setInputMethodEnabled(bool enabled)
Use setAttribute(Qt::WA_InputMethodEnabled, \a enabled) instead.
*/
/*!
\fn bool QWidget::isInputMethodEnabled() const
Use testAttribute(Qt::WA_InputMethodEnabled) instead.
*/
/*!
\fn void QWidget::setActiveWindow()
Use activateWindow() instead.
*/
/*!
\fn bool QWidget::isShown() const
Use !isHidden() instead (notice the exclamation mark), or use isVisible() to check whether the widget is visible.
*/
/*!
\fn bool QWidget::isDialog() const
Use windowType() == Qt::Dialog instead.
*/
/*!
\fn bool QWidget::isPopup() const
Use windowType() == Qt::Popup instead.
*/
/*!
\fn bool QWidget::isDesktop() const
Use windowType() == Qt::Desktop instead.
*/
/*!
\fn void QWidget::polish()
Use ensurePolished() instead.
*/
/*!
\fn QWidget *QWidget::childAt(int x, int y, bool includeThis) const
Use the childAt() overload that doesn't have an \a includeThis parameter.
\oldcode
return widget->childAt(x, y, true);
\newcode
QWidget *child = widget->childAt(x, y, true);
if (child)
return child;
if (widget->rect().contains(x, y))
return widget;
\endcode
*/
/*!
\fn void QWidget::setSizePolicy(QSizePolicy::Policy hor, QSizePolicy::Policy ver, bool hfw)
\compat
Use the \l sizePolicy property and heightForWidth() function instead.
*/
/*!
\fn bool QWidget::isUpdatesEnabled() const
\compat
Use the \l updatesEnabled property instead.
*/
/*!
\macro QWIDGETSIZE_MAX
\relates QWidget
Defines the maximum size for a QWidget object.
The largest allowed size for a widget is QSize(QWIDGETSIZE_MAX,
QWIDGETSIZE_MAX), i.e. QSize (16777215,16777215).
\sa QWidget::setMaximumSize()
*/
/*!
\fn QWidget::setupUi(QWidget *widget)
Sets up the user interface for the specified \a widget.
\note This function is available with widgets that derive from user
interface descriptions created using \l{uic}.
\sa {Using a Designer UI File in Your Application}
*/
QRect QWidgetPrivate::frameStrut() const
{
Q_Q(const QWidget);
if (!q->isWindow() || (q->windowType() == Qt::Desktop) || q->testAttribute(Qt::WA_DontShowOnScreen)) {
// x2 = x1 + w - 1, so w/h = 1
return QRect(0, 0, 1, 1);
}
if (data.fstrut_dirty
#ifndef Q_WS_WIN
// ### Fix properly for 4.3
&& q->isVisible()
#endif
&& q->testAttribute(Qt::WA_WState_Created))
const_cast<QWidgetPrivate *>(this)->updateFrameStrut();
return maybeTopData() ? maybeTopData()->frameStrut : QRect();
}
#ifdef QT_KEYPAD_NAVIGATION
/*!
\internal
Changes the focus from the current focusWidget to a widget in
the \a direction.
Returns true, if there was a widget in that direction
*/
bool QWidgetPrivate::navigateToDirection(Direction direction)
{
QWidget *targetWidget = widgetInNavigationDirection(direction);
if (targetWidget)
targetWidget->setFocus();
return (targetWidget != 0);
}
/*!
\internal
Searches for a widget that is positioned in the \a direction, starting
from the current focusWidget.
Returns the pointer to a found widget or 0, if there was no widget in
that direction.
*/
QWidget *QWidgetPrivate::widgetInNavigationDirection(Direction direction)
{
const QWidget *sourceWidget = QApplication::focusWidget();
if (!sourceWidget)
return 0;
const QRect sourceRect = sourceWidget->rect().translated(sourceWidget->mapToGlobal(QPoint()));
const int sourceX =
(direction == DirectionNorth || direction == DirectionSouth) ?
(sourceRect.left() + (sourceRect.right() - sourceRect.left()) / 2)
:(direction == DirectionEast ? sourceRect.right() : sourceRect.left());
const int sourceY =
(direction == DirectionEast || direction == DirectionWest) ?
(sourceRect.top() + (sourceRect.bottom() - sourceRect.top()) / 2)
:(direction == DirectionSouth ? sourceRect.bottom() : sourceRect.top());
const QPoint sourcePoint(sourceX, sourceY);
const QPoint sourceCenter = sourceRect.center();
const QWidget *sourceWindow = sourceWidget->window();
QWidget *targetWidget = 0;
int shortestDistance = INT_MAX;
foreach(QWidget *targetCandidate, QApplication::allWidgets()) {
const QRect targetCandidateRect = targetCandidate->rect().translated(targetCandidate->mapToGlobal(QPoint()));
// For focus proxies, the child widget handling the focus can have keypad navigation focus,
// but the owner of the proxy cannot.
// Additionally, empty widgets should be ignored.
if (targetCandidate->focusProxy() || targetCandidateRect.isEmpty())
continue;
// Only navigate to a target widget that...
if ( targetCandidate != sourceWidget
// ...takes the focus,
&& targetCandidate->focusPolicy() & Qt::TabFocus
// ...is above if DirectionNorth,
&& !(direction == DirectionNorth && targetCandidateRect.bottom() > sourceRect.top())
// ...is on the right if DirectionEast,
&& !(direction == DirectionEast && targetCandidateRect.left() < sourceRect.right())
// ...is below if DirectionSouth,
&& !(direction == DirectionSouth && targetCandidateRect.top() < sourceRect.bottom())
// ...is on the left if DirectionWest,
&& !(direction == DirectionWest && targetCandidateRect.right() > sourceRect.left())
// ...is enabled,
&& targetCandidate->isEnabled()
// ...is visible,
&& targetCandidate->isVisible()
// ...is in the same window,
&& targetCandidate->window() == sourceWindow) {
const int targetCandidateDistance = pointToRect(sourcePoint, targetCandidateRect);
if (targetCandidateDistance < shortestDistance) {
shortestDistance = targetCandidateDistance;
targetWidget = targetCandidate;
}
}
}
return targetWidget;
}
/*!
\internal
Tells us if it there is currently a reachable widget by keypad navigation in
a certain \a orientation.
If no navigation is possible, occurring key events in that \a orientation may
be used to interact with the value in the focused widget, even though it
currently has not the editFocus.
\sa QWidgetPrivate::widgetInNavigationDirection(), QWidget::hasEditFocus()
*/
bool QWidgetPrivate::canKeypadNavigate(Qt::Orientation orientation)
{
return orientation == Qt::Horizontal?
(QWidgetPrivate::widgetInNavigationDirection(QWidgetPrivate::DirectionEast)
|| QWidgetPrivate::widgetInNavigationDirection(QWidgetPrivate::DirectionWest))
:(QWidgetPrivate::widgetInNavigationDirection(QWidgetPrivate::DirectionNorth)
|| QWidgetPrivate::widgetInNavigationDirection(QWidgetPrivate::DirectionSouth));
}
/*!
\internal
Checks, if the \a widget is inside a QTabWidget. If is is inside
one, left/right key events will be used to switch between tabs in keypad
navigation. If there is no QTabWidget, the horizontal key events can be used
to
interact with the value in the focused widget, even though it currently has
not the editFocus.
\sa QWidget::hasEditFocus()
*/
bool QWidgetPrivate::inTabWidget(QWidget *widget)
{
for (QWidget *tabWidget = widget; tabWidget; tabWidget = tabWidget->parentWidget())
if (qobject_cast<const QTabWidget*>(tabWidget))
return true;
return false;
}
#endif
/*!
\preliminary
\since 4.2
\obsolete
Sets the window surface to be the \a surface specified.
The QWidget takes will ownership of the \a surface.
widget itself is deleted.
*/
void QWidget::setWindowSurface(QWindowSurface *surface)
{
// ### createWinId() ??
#ifndef Q_BACKINGSTORE_SUBSURFACES
if (!isTopLevel())
return;
#endif
Q_D(QWidget);
QTLWExtra *topData = d->topData();
if (topData->windowSurface == surface)
return;
QWindowSurface *oldSurface = topData->windowSurface;
delete topData->windowSurface;
topData->windowSurface = surface;
QWidgetBackingStore *bs = d->maybeBackingStore();
if (!bs)
return;
if (isTopLevel()) {
if (bs->windowSurface != oldSurface && bs->windowSurface != surface)
delete bs->windowSurface;
bs->windowSurface = surface;
}
#ifdef Q_BACKINGSTORE_SUBSURFACES
else {
bs->subSurfaces.append(surface);
}
bs->subSurfaces.removeOne(oldSurface);
#endif
}
/*!
\preliminary
\since 4.2
Returns the QWindowSurface this widget will be drawn into.
*/
QWindowSurface *QWidget::windowSurface() const
{
Q_D(const QWidget);
QTLWExtra *extra = d->maybeTopData();
if (extra && extra->windowSurface)
return extra->windowSurface;
QWidgetBackingStore *bs = d->maybeBackingStore();
#ifdef Q_BACKINGSTORE_SUBSURFACES
if (bs && bs->subSurfaces.isEmpty())
return bs->windowSurface;
if (!isTopLevel()) {
const QWidget *w = parentWidget();
while (w) {
QTLWExtra *extra = w->d_func()->maybeTopData();
if (extra && extra->windowSurface)
return extra->windowSurface;
if (w->isTopLevel())
break;
w = w->parentWidget();
}
}
#endif // Q_BACKINGSTORE_SUBSURFACES
return bs ? bs->windowSurface : 0;
}
void QWidgetPrivate::getLayoutItemMargins(int *left, int *top, int *right, int *bottom) const
{
if (left)
*left = (int)leftLayoutItemMargin;
if (top)
*top = (int)topLayoutItemMargin;
if (right)
*right = (int)rightLayoutItemMargin;
if (bottom)
*bottom = (int)bottomLayoutItemMargin;
}
void QWidgetPrivate::setLayoutItemMargins(int left, int top, int right, int bottom)
{
if (leftLayoutItemMargin == left
&& topLayoutItemMargin == top
&& rightLayoutItemMargin == right
&& bottomLayoutItemMargin == bottom)
return;
Q_Q(QWidget);
leftLayoutItemMargin = (signed char)left;
topLayoutItemMargin = (signed char)top;
rightLayoutItemMargin = (signed char)right;
bottomLayoutItemMargin = (signed char)bottom;
q->updateGeometry();
}
void QWidgetPrivate::setLayoutItemMargins(QStyle::SubElement element, const QStyleOption *opt)
{
Q_Q(QWidget);
QStyleOption myOpt;
if (!opt) {
myOpt.initFrom(q);
myOpt.rect.setRect(0, 0, 32768, 32768); // arbitrary
opt = &myOpt;
}
QRect liRect = q->style()->subElementRect(element, opt, q);
if (liRect.isValid()) {
leftLayoutItemMargin = (signed char)(opt->rect.left() - liRect.left());
topLayoutItemMargin = (signed char)(opt->rect.top() - liRect.top());
rightLayoutItemMargin = (signed char)(liRect.right() - opt->rect.right());
bottomLayoutItemMargin = (signed char)(liRect.bottom() - opt->rect.bottom());
} else {
leftLayoutItemMargin = 0;
topLayoutItemMargin = 0;
rightLayoutItemMargin = 0;
bottomLayoutItemMargin = 0;
}
}
// resets the Qt::WA_QuitOnClose attribute to the default value for transient widgets.
void QWidgetPrivate::adjustQuitOnCloseAttribute()
{
Q_Q(QWidget);
if (!q->parentWidget()) {
Qt::WindowType type = q->windowType();
if (type == Qt::Widget || type == Qt::SubWindow)
type = Qt::Window;
if (type != Qt::Widget && type != Qt::Window && type != Qt::Dialog)
q->setAttribute(Qt::WA_QuitOnClose, false);
}
}
Q_GUI_EXPORT QWidgetData *qt_qwidget_data(QWidget *widget)
{
return widget->data;
}
Q_GUI_EXPORT QWidgetPrivate *qt_widget_private(QWidget *widget)
{
return widget->d_func();
}
#ifndef QT_NO_GRAPHICSVIEW
/*!
\since 4.5
Returns the proxy widget for the corresponding embedded widget in a graphics
view; otherwise returns 0.
\sa QGraphicsProxyWidget::createProxyForChildWidget(),
QGraphicsScene::addWidget()
*/
QGraphicsProxyWidget *QWidget::graphicsProxyWidget() const
{
Q_D(const QWidget);
if (d->extra) {
return d->extra->proxyWidget;
}
return 0;
}
#endif
/*!
\typedef QWidgetList
\relates QWidget
Synonym for QList<QWidget *>.
*/
#ifndef QT_NO_GESTURES
/*!
Subscribes the widget to a given \a gesture with specific \a flags.
\sa ungrabGesture(), QGestureEvent
\since 4.6
*/
void QWidget::grabGesture(Qt::GestureType gesture, Qt::GestureFlags flags)
{
Q_D(QWidget);
d->gestureContext.insert(gesture, flags);
(void)QGestureManager::instance(); // create a gesture manager
}
/*!
Unsubscribes the widget from a given \a gesture type
\sa grabGesture(), QGestureEvent
\since 4.6
*/
void QWidget::ungrabGesture(Qt::GestureType gesture)
{
Q_D(QWidget);
if (d->gestureContext.remove(gesture)) {
if (QGestureManager *manager = QGestureManager::instance())
manager->cleanupCachedGestures(this, gesture);
}
}
#endif // QT_NO_GESTURES
/*!
\typedef WId
\relates QWidget
Platform dependent window identifier.
*/
/*!
\fn void QWidget::destroy(bool destroyWindow, bool destroySubWindows)
Frees up window system resources. Destroys the widget window if \a
destroyWindow is true.
destroy() calls itself recursively for all the child widgets,
passing \a destroySubWindows for the \a destroyWindow parameter.
To have more control over destruction of subwidgets, destroy
subwidgets selectively first.
This function is usually called from the QWidget destructor.
*/
/*!
\fn QPaintEngine *QWidget::paintEngine() const
Returns the widget's paint engine.
Note that this function should not be called explicitly by the
user, since it's meant for reimplementation purposes only. The
function is called by Qt internally, and the default
implementation may not always return a valid pointer.
*/
/*!
\fn QPoint QWidget::mapToGlobal(const QPoint &pos) const
Translates the widget coordinate \a pos to global screen
coordinates. For example, \c{mapToGlobal(QPoint(0,0))} would give
the global coordinates of the top-left pixel of the widget.
\sa mapFromGlobal() mapTo() mapToParent()
*/
/*!
\fn QPoint QWidget::mapFromGlobal(const QPoint &pos) const
Translates the global screen coordinate \a pos to widget
coordinates.
\sa mapToGlobal() mapFrom() mapFromParent()
*/
/*!
\fn void QWidget::grabMouse()
Grabs the mouse input.
This widget receives all mouse events until releaseMouse() is
called; other widgets get no mouse events at all. Keyboard
events are not affected. Use grabKeyboard() if you want to grab
that.
\warning Bugs in mouse-grabbing applications very often lock the
terminal. Use this function with extreme caution, and consider
using the \c -nograb command line option while debugging.
It is almost never necessary to grab the mouse when using Qt, as
Qt grabs and releases it sensibly. In particular, Qt grabs the
mouse when a mouse button is pressed and keeps it until the last
button is released.
\note Only visible widgets can grab mouse input. If isVisible()
returns false for a widget, that widget cannot call grabMouse().
\note \bold{(Mac OS X developers)} For \e Cocoa, calling
grabMouse() on a widget only works when the mouse is inside the
frame of that widget. For \e Carbon, it works outside the widget's
frame as well, like for Windows and X11.
\sa releaseMouse() grabKeyboard() releaseKeyboard()
*/
/*!
\fn void QWidget::grabMouse(const QCursor &cursor)
\overload grabMouse()
Grabs the mouse input and changes the cursor shape.
The cursor will assume shape \a cursor (for as long as the mouse
focus is grabbed) and this widget will be the only one to receive
mouse events until releaseMouse() is called().
\warning Grabbing the mouse might lock the terminal.
\note \bold{(Mac OS X developers)} See the note in QWidget::grabMouse().
\sa releaseMouse(), grabKeyboard(), releaseKeyboard(), setCursor()
*/
/*!
\fn void QWidget::releaseMouse()
Releases the mouse grab.
\sa grabMouse(), grabKeyboard(), releaseKeyboard()
*/
/*!
\fn void QWidget::grabKeyboard()
Grabs the keyboard input.
This widget receives all keyboard events until releaseKeyboard()
is called; other widgets get no keyboard events at all. Mouse
events are not affected. Use grabMouse() if you want to grab that.
The focus widget is not affected, except that it doesn't receive
any keyboard events. setFocus() moves the focus as usual, but the
new focus widget receives keyboard events only after
releaseKeyboard() is called.
If a different widget is currently grabbing keyboard input, that
widget's grab is released first.
\sa releaseKeyboard() grabMouse() releaseMouse() focusWidget()
*/
/*!
\fn void QWidget::releaseKeyboard()
Releases the keyboard grab.
\sa grabKeyboard(), grabMouse(), releaseMouse()
*/
/*!
\fn QWidget *QWidget::mouseGrabber()
Returns the widget that is currently grabbing the mouse input.
If no widget in this application is currently grabbing the mouse,
0 is returned.
\sa grabMouse(), keyboardGrabber()
*/
/*!
\fn QWidget *QWidget::keyboardGrabber()
Returns the widget that is currently grabbing the keyboard input.
If no widget in this application is currently grabbing the
keyboard, 0 is returned.
\sa grabMouse(), mouseGrabber()
*/
/*!
\fn void QWidget::activateWindow()
Sets the top-level widget containing this widget to be the active
window.
An active window is a visible top-level window that has the
keyboard input focus.
This function performs the same operation as clicking the mouse on
the title bar of a top-level window. On X11, the result depends on
the Window Manager. If you want to ensure that the window is
stacked on top as well you should also call raise(). Note that the
window must be visible, otherwise activateWindow() has no effect.
On Windows, if you are calling this when the application is not
currently the active one then it will not make it the active
window. It will change the color of the taskbar entry to indicate
that the window has changed in some way. This is because Microsoft
does not allow an application to interrupt what the user is currently
doing in another application.
\sa isActiveWindow(), window(), show()
*/
/*!
\fn int QWidget::metric(PaintDeviceMetric m) const
Internal implementation of the virtual QPaintDevice::metric()
function.
\a m is the metric to get.
*/
/*!
\fn void QWidget::setMask(const QRegion ®ion)
\overload
Causes only the parts of the widget which overlap \a region to be
visible. If the region includes pixels outside the rect() of the
widget, window system controls in that area may or may not be
visible, depending on the platform.
Note that this effect can be slow if the region is particularly
complex.
\sa windowOpacity
*/
void QWidget::setMask(const QRegion &newMask)
{
Q_D(QWidget);
d->createExtra();
if (newMask == d->extra->mask)
return;
#ifndef QT_NO_BACKINGSTORE
const QRegion oldMask(d->extra->mask);
#endif
d->extra->mask = newMask;
d->extra->hasMask = !newMask.isEmpty();
#ifndef QT_MAC_USE_COCOA
if (!testAttribute(Qt::WA_WState_Created))
return;
#endif
d->setMask_sys(newMask);
#ifndef QT_NO_BACKINGSTORE
if (!isVisible())
return;
if (!d->extra->hasMask) {
// Mask was cleared; update newly exposed area.
QRegion expose(rect());
expose -= oldMask;
if (!expose.isEmpty()) {
d->setDirtyOpaqueRegion();
update(expose);
}
return;
}
if (!isWindow()) {
// Update newly exposed area on the parent widget.
QRegion parentExpose(rect());
parentExpose -= newMask;
if (!parentExpose.isEmpty()) {
d->setDirtyOpaqueRegion();
parentExpose.translate(data->crect.topLeft());
parentWidget()->update(parentExpose);
}
// Update newly exposed area on this widget
if (!oldMask.isEmpty())
update(newMask - oldMask);
}
#endif
}
/*!
\fn void QWidget::setMask(const QBitmap &bitmap)
Causes only the pixels of the widget for which \a bitmap has a
corresponding 1 bit to be visible. If the region includes pixels
outside the rect() of the widget, window system controls in that
area may or may not be visible, depending on the platform.
Note that this effect can be slow if the region is particularly
complex.
The following code shows how an image with an alpha channel can be
used to generate a mask for a widget:
\snippet doc/src/snippets/widget-mask/main.cpp 0
The label shown by this code is masked using the image it contains,
giving the appearance that an irregularly-shaped image is being drawn
directly onto the screen.
Masked widgets receive mouse events only on their visible
portions.
\sa clearMask(), windowOpacity(), {Shaped Clock Example}
*/
void QWidget::setMask(const QBitmap &bitmap)
{
setMask(QRegion(bitmap));
}
/*!
\fn void QWidget::clearMask()
Removes any mask set by setMask().
\sa setMask()
*/
void QWidget::clearMask()
{
setMask(QRegion());
}
/*! \fn const QX11Info &QWidget::x11Info() const
Returns information about the configuration of the X display used to display
the widget.
\warning This function is only available on X11.
*/
/*! \fn Qt::HANDLE QWidget::x11PictureHandle() const
Returns the X11 Picture handle of the widget for XRender
support. Use of this function is not portable. This function will
return 0 if XRender support is not compiled into Qt, if the
XRender extension is not supported on the X11 display, or if the
handle could not be created.
*/
#ifdef Q_OS_SYMBIAN
void QWidgetPrivate::_q_cleanupWinIds()
{
foreach (WId wid, widCleanupList)
delete wid;
widCleanupList.clear();
}
#endif
#if QT_MAC_USE_COCOA
void QWidgetPrivate::syncUnifiedMode() {
// The whole purpose of this method is to keep the unifiedToolbar in sync.
// That means making sure we either exchange the drawing methods or we let
// the toolbar know that it does not require to draw the baseline.
Q_Q(QWidget);
// This function makes sense only if this is a top level
if(!q->isWindow())
return;
OSWindowRef window = qt_mac_window_for(q);
if(changeMethods) {
// Ok, we are in documentMode.
if(originalDrawMethod)
qt_mac_replaceDrawRect(window, this);
} else {
if(!originalDrawMethod)
qt_mac_replaceDrawRectOriginal(window, this);
}
}
#endif // QT_MAC_USE_COCOA
QT_END_NAMESPACE
#include "moc_qwidget.cpp"
|