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
|
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qevent.h"
#include "qcursor.h"
#include "qapplication.h"
#include "private/qapplication_p.h"
#include "private/qkeysequence_p.h"
#include "qwidget.h"
#include "qgraphicsview.h"
#include "qdebug.h"
#include "qmime.h"
#include "qdnd_p.h"
#include "qevent_p.h"
#include "qgesture.h"
#include "qgesture_p.h"
QT_BEGIN_NAMESPACE
/*!
\class QInputEvent
\ingroup events
\brief The QInputEvent class is the base class for events that
describe user input.
*/
/*!
\internal
*/
QInputEvent::QInputEvent(Type type, Qt::KeyboardModifiers modifiers)
: QEvent(type), modState(modifiers)
{}
/*!
\internal
*/
QInputEvent::~QInputEvent()
{
}
/*!
\fn Qt::KeyboardModifiers QInputEvent::modifiers() const
Returns the keyboard modifier flags that existed immediately
before the event occurred.
\sa QApplication::keyboardModifiers()
*/
/*! \fn void QInputEvent::setModifiers(Qt::KeyboardModifiers modifiers)
\internal
Sets the keyboard modifiers flags for this event.
*/
/*!
\class QMouseEvent
\ingroup events
\brief The QMouseEvent class contains parameters that describe a mouse event.
Mouse events occur when a mouse button is pressed or released
inside a widget, or when the mouse cursor is moved.
Mouse move events will occur only when a mouse button is pressed
down, unless mouse tracking has been enabled with
QWidget::setMouseTracking().
Qt automatically grabs the mouse when a mouse button is pressed
inside a widget; the widget will continue to receive mouse events
until the last mouse button is released.
A mouse event contains a special accept flag that indicates
whether the receiver wants the event. You should call ignore() if
the mouse event is not handled by your widget. A mouse event is
propagated up the parent widget chain until a widget accepts it
with accept(), or an event filter consumes it.
\note If a mouse event is propagated to a \l{QWidget}{widget} for
which Qt::WA_NoMousePropagation has been set, that mouse event
will not be propagated further up the parent widget chain.
The state of the keyboard modifier keys can be found by calling the
\l{QInputEvent::modifiers()}{modifiers()} function, inherited from
QInputEvent.
The functions pos(), x(), and y() give the cursor position
relative to the widget that receives the mouse event. If you
move the widget as a result of the mouse event, use the global
position returned by globalPos() to avoid a shaking motion.
The QWidget::setEnabled() function can be used to enable or
disable mouse and keyboard events for a widget.
Reimplement the QWidget event handlers, QWidget::mousePressEvent(),
QWidget::mouseReleaseEvent(), QWidget::mouseDoubleClickEvent(),
and QWidget::mouseMoveEvent() to receive mouse events in your own
widgets.
\sa QWidget::setMouseTracking() QWidget::grabMouse()
QCursor::pos()
*/
/*!
Constructs a mouse event object.
The \a type parameter must be one of QEvent::MouseButtonPress,
QEvent::MouseButtonRelease, QEvent::MouseButtonDblClick,
or QEvent::MouseMove.
The \a position is the mouse cursor's position relative to the
receiving widget.
The \a button that caused the event is given as a value from
the Qt::MouseButton enum. If the event \a type is
\l MouseMove, the appropriate button for this event is Qt::NoButton.
The mouse and keyboard states at the time of the event are specified by
\a buttons and \a modifiers.
The globalPos() is initialized to QCursor::pos(), which may not
be appropriate. Use the other constructor to specify the global
position explicitly.
*/
QMouseEvent::QMouseEvent(Type type, const QPoint &position, Qt::MouseButton button,
Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
: QInputEvent(type, modifiers), p(position), b(button), mouseState(buttons)
{
g = QCursor::pos();
}
/*!
\internal
*/
QMouseEvent::~QMouseEvent()
{
}
#ifdef QT3_SUPPORT
/*!
Use QMouseEvent(\a type, \a pos, \a button, \c buttons, \c
modifiers) instead, where \c buttons is \a state &
Qt::MouseButtonMask and \c modifiers is \a state &
Qt::KeyButtonMask.
*/
QMouseEvent::QMouseEvent(Type type, const QPoint &pos, Qt::ButtonState button, int state)
: QInputEvent(type), p(pos), b((Qt::MouseButton)button)
{
g = QCursor::pos();
mouseState = Qt::MouseButtons((state ^ b) & Qt::MouseButtonMask);
modState = Qt::KeyboardModifiers(state & (int)Qt::KeyButtonMask);
}
/*!
Use QMouseEvent(\a type, \a pos, \a globalPos, \a button,
\c buttons, \c modifiers) instead, where
\c buttons is \a state & Qt::MouseButtonMask and
\c modifiers is \a state & Qt::KeyButtonMask.
*/
QMouseEvent::QMouseEvent(Type type, const QPoint &pos, const QPoint &globalPos,
Qt::ButtonState button, int state)
: QInputEvent(type), p(pos), g(globalPos), b((Qt::MouseButton)button)
{
mouseState = Qt::MouseButtons((state ^ b) & Qt::MouseButtonMask);
modState = Qt::KeyboardModifiers(state & (int)Qt::KeyButtonMask);
}
#endif
/*!
Constructs a mouse event object.
The \a type parameter must be QEvent::MouseButtonPress,
QEvent::MouseButtonRelease, QEvent::MouseButtonDblClick,
or QEvent::MouseMove.
The \a pos is the mouse cursor's position relative to the
receiving widget. The cursor's position in global coordinates is
specified by \a globalPos. The \a button that caused the event is
given as a value from the \l Qt::MouseButton enum. If the event \a
type is \l MouseMove, the appropriate button for this event is
Qt::NoButton. \a buttons is the state of all buttons at the
time of the event, \a modifiers the state of all keyboard
modifiers.
*/
QMouseEvent::QMouseEvent(Type type, const QPoint &pos, const QPoint &globalPos,
Qt::MouseButton button, Qt::MouseButtons buttons,
Qt::KeyboardModifiers modifiers)
: QInputEvent(type, modifiers), p(pos), g(globalPos), b(button), mouseState(buttons)
{}
/*!
\internal
*/
QMouseEvent *QMouseEvent::createExtendedMouseEvent(Type type, const QPointF &pos,
const QPoint &globalPos, Qt::MouseButton button,
Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
{
return new QMouseEventEx(type, pos, globalPos, button, buttons, modifiers);
}
/*!
\fn bool QMouseEvent::hasExtendedInfo() const
\internal
*/
/*!
\since 4.4
Returns the position of the mouse cursor as a QPointF, relative to the
widget that received the event.
If you move the widget as a result of the mouse event, use the
global position returned by globalPos() to avoid a shaking
motion.
\sa x() y() pos() globalPos()
*/
QPointF QMouseEvent::posF() const
{
return hasExtendedInfo() ? reinterpret_cast<const QMouseEventEx *>(this)->posF : QPointF(pos());
}
/*!
\internal
*/
QMouseEventEx::QMouseEventEx(Type type, const QPointF &pos, const QPoint &globalPos,
Qt::MouseButton button, Qt::MouseButtons buttons,
Qt::KeyboardModifiers modifiers)
: QMouseEvent(type, pos.toPoint(), globalPos, button, buttons, modifiers), posF(pos)
{
d = reinterpret_cast<QEventPrivate *>(this);
}
/*!
\internal
*/
QMouseEventEx::~QMouseEventEx()
{
}
/*!
\fn const QPoint &QMouseEvent::pos() const
Returns the position of the mouse cursor, relative to the widget
that received the event.
If you move the widget as a result of the mouse event, use the
global position returned by globalPos() to avoid a shaking
motion.
\sa x() y() globalPos()
*/
/*!
\fn const QPoint &QMouseEvent::globalPos() const
Returns the global position of the mouse cursor \e{at the time
of the event}. This is important on asynchronous window systems
like X11. Whenever you move your widgets around in response to
mouse events, globalPos() may differ a lot from the current
pointer position QCursor::pos(), and from
QWidget::mapToGlobal(pos()).
\sa globalX() globalY()
*/
/*!
\fn int QMouseEvent::x() const
Returns the x position of the mouse cursor, relative to the
widget that received the event.
\sa y() pos()
*/
/*!
\fn int QMouseEvent::y() const
Returns the y position of the mouse cursor, relative to the
widget that received the event.
\sa x() pos()
*/
/*!
\fn int QMouseEvent::globalX() const
Returns the global x position of the mouse cursor at the time of
the event.
\sa globalY() globalPos()
*/
/*!
\fn int QMouseEvent::globalY() const
Returns the global y position of the mouse cursor at the time of
the event.
\sa globalX() globalPos()
*/
/*!
\fn Qt::MouseButton QMouseEvent::button() const
Returns the button that caused the event.
Note that the returned value is always Qt::NoButton for mouse
move events.
\sa buttons() Qt::MouseButton
*/
/*!
\fn Qt::MouseButton QMouseEvent::buttons() const
Returns the button state when the event was generated. The button
state is a combination of Qt::LeftButton, Qt::RightButton,
Qt::MidButton using the OR operator. For mouse move events,
this is all buttons that are pressed down. For mouse press and
double click events this includes the button that caused the
event. For mouse release events this excludes the button that
caused the event.
\sa button() Qt::MouseButton
*/
/*!
\fn Qt::ButtonState QMouseEvent::state() const
Returns the button state immediately before the event was
generated. The button state is a combination of mouse buttons
(see Qt::ButtonState) and keyboard modifiers (Qt::MouseButtons).
Use buttons() and/or modifiers() instead. Be aware that buttons()
return the state immediately \e after the event was generated.
*/
/*!
\fn Qt::ButtonState QMouseEvent::stateAfter() const
Returns the button state immediately after the event was
generated. The button state is a combination of mouse buttons
(see Qt::ButtonState) and keyboard modifiers (Qt::MouseButtons).
Use buttons() and/or modifiers() instead.
*/
/*!
\class QHoverEvent
\ingroup events
\brief The QHoverEvent class contains parameters that describe a mouse event.
Mouse events occur when a mouse cursor is moved into, out of, or within a
widget, and if the widget has the Qt::WA_Hover attribute.
The function pos() gives the current cursor position, while oldPos() gives
the old mouse position.
There are a few similarities between the events QEvent::HoverEnter
and QEvent::HoverLeave, and the events QEvent::Enter and QEvent::Leave.
However, they are slightly different because we do an update() in the event
handler of HoverEnter and HoverLeave.
QEvent::HoverMove is also slightly different from QEvent::MouseMove. Let us
consider a top-level window A containing a child B which in turn contains a
child C (all with mouse tracking enabled):
\image hoverevents.png
Now, if you move the cursor from the top to the bottom in the middle of A,
you will get the following QEvent::MouseMove events:
\list 1
\o A::MouseMove
\o B::MouseMove
\o C::MouseMove
\endlist
You will get the same events for QEvent::HoverMove, except that the event
always propagates to the top-level regardless whether the event is accepted
or not. It will only stop propagating with the Qt::WA_NoMousePropagation
attribute.
In this case the events will occur in the following way:
\list 1
\o A::HoverMove
\o A::HoverMove, B::HoverMove
\o A::HoverMove, B::HoverMove, C::HoverMove
\endlist
*/
/*!
\fn const QPoint &QHoverEvent::pos() const
Returns the position of the mouse cursor, relative to the widget
that received the event.
On QEvent::HoverLeave events, this position will always be
QPoint(-1, -1).
\sa oldPos()
*/
/*!
\fn const QPoint &QHoverEvent::oldPos() const
Returns the previous position of the mouse cursor, relative to the widget
that received the event. If there is no previous position, oldPos() will
return the same position as pos().
On QEvent::HoverEnter events, this position will always be
QPoint(-1, -1).
\sa pos()
*/
/*!
Constructs a hover event object.
The \a type parameter must be QEvent::HoverEnter,
QEvent::HoverLeave, or QEvent::HoverMove.
The \a pos is the current mouse cursor's position relative to the
receiving widget, while \a oldPos is the previous mouse cursor's
position relative to the receiving widget.
*/
QHoverEvent::QHoverEvent(Type type, const QPoint &pos, const QPoint &oldPos)
: QEvent(type), p(pos), op(oldPos)
{
}
/*!
\internal
*/
QHoverEvent::~QHoverEvent()
{
}
/*!
\class QWheelEvent
\brief The QWheelEvent class contains parameters that describe a wheel event.
\ingroup events
Wheel events are sent to the widget under the mouse cursor, but
if that widget does not handle the event they are sent to the
focus widget. The rotation distance is provided by delta().
The functions pos() and globalPos() return the mouse cursor's
location at the time of the event.
A wheel event contains a special accept flag that indicates
whether the receiver wants the event. You should call ignore() if
you do not handle the wheel event; this ensures that it will be
sent to the parent widget.
The QWidget::setEnabled() function can be used to enable or
disable mouse and keyboard events for a widget.
The event handler QWidget::wheelEvent() receives wheel events.
\sa QMouseEvent QWidget::grabMouse()
*/
/*!
\fn Qt::MouseButtons QWheelEvent::buttons() const
Returns the mouse state when the event occurred.
*/
/*!
\fn Qt::Orientation QWheelEvent::orientation() const
Returns the wheel's orientation.
*/
/*!
Constructs a wheel event object.
The position, \a pos, is the location of the mouse cursor within
the widget. The globalPos() is initialized to QCursor::pos()
which is usually, but not always, correct.
Use the other constructor if you need to specify the global
position explicitly.
The \a buttons describe the state of the mouse buttons at the time
of the event, \a delta contains the rotation distance,
\a modifiers holds the keyboard modifier flags at the time of the
event, and \a orient holds the wheel's orientation.
\sa pos() delta() state()
*/
#ifndef QT_NO_WHEELEVENT
QWheelEvent::QWheelEvent(const QPoint &pos, int delta,
Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers,
Qt::Orientation orient)
: QInputEvent(Wheel, modifiers), p(pos), d(delta), mouseState(buttons), o(orient)
{
g = QCursor::pos();
}
/*!
\internal
*/
QWheelEvent::~QWheelEvent()
{
}
#ifdef QT3_SUPPORT
/*!
Use one of the other constructors instead.
*/
QWheelEvent::QWheelEvent(const QPoint &pos, int delta, int state, Qt::Orientation orient)
: QInputEvent(Wheel), p(pos), d(delta), o(orient)
{
g = QCursor::pos();
mouseState = Qt::MouseButtons(state & Qt::MouseButtonMask);
modState = Qt::KeyboardModifiers(state & (int)Qt::KeyButtonMask);
}
#endif
/*!
Constructs a wheel event object.
The \a pos provides the location of the mouse cursor
within the widget. The position in global coordinates is specified
by \a globalPos. \a delta contains the rotation distance, \a modifiers
holds the keyboard modifier flags at the time of the event, and
\a orient holds the wheel's orientation.
\sa pos() globalPos() delta() state()
*/
QWheelEvent::QWheelEvent(const QPoint &pos, const QPoint& globalPos, int delta,
Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers,
Qt::Orientation orient)
: QInputEvent(Wheel, modifiers), p(pos), g(globalPos), d(delta), mouseState(buttons), o(orient)
{}
#ifdef QT3_SUPPORT
/*!
Use one of the other constructors instead.
*/
QWheelEvent::QWheelEvent(const QPoint &pos, const QPoint& globalPos, int delta, int state,
Qt::Orientation orient)
: QInputEvent(Wheel), p(pos), g(globalPos), d(delta), o(orient)
{
mouseState = Qt::MouseButtons(state & Qt::MouseButtonMask);
modState = Qt::KeyboardModifiers(state & (int) Qt::KeyButtonMask);
}
#endif
#endif // QT_NO_WHEELEVENT
/*!
\fn int QWheelEvent::delta() const
Returns the distance that the wheel is rotated, in eighths of a
degree. A positive value indicates that the wheel was rotated
forwards away from the user; a negative value indicates that the
wheel was rotated backwards toward the user.
Most mouse types work in steps of 15 degrees, in which case the
delta value is a multiple of 120; i.e., 120 units * 1/8 = 15 degrees.
However, some mice have finer-resolution wheels and send delta values
that are less than 120 units (less than 15 degrees). To support this
possibility, you can either cumulatively add the delta values from events
until the value of 120 is reached, then scroll the widget, or you can
partially scroll the widget in response to each wheel event.
Example:
\snippet doc/src/snippets/code/src_gui_kernel_qevent.cpp 0
*/
/*!
\fn const QPoint &QWheelEvent::pos() const
Returns the position of the mouse cursor relative to the widget
that received the event.
If you move your widgets around in response to mouse events,
use globalPos() instead of this function.
\sa x() y() globalPos()
*/
/*!
\fn int QWheelEvent::x() const
Returns the x position of the mouse cursor, relative to the
widget that received the event.
\sa y() pos()
*/
/*!
\fn int QWheelEvent::y() const
Returns the y position of the mouse cursor, relative to the
widget that received the event.
\sa x() pos()
*/
/*!
\fn const QPoint &QWheelEvent::globalPos() const
Returns the global position of the mouse pointer \e{at the time
of the event}. This is important on asynchronous window systems
such as X11; whenever you move your widgets around in response to
mouse events, globalPos() can differ a lot from the current
cursor position returned by QCursor::pos().
\sa globalX() globalY()
*/
/*!
\fn int QWheelEvent::globalX() const
Returns the global x position of the mouse cursor at the time of
the event.
\sa globalY() globalPos()
*/
/*!
\fn int QWheelEvent::globalY() const
Returns the global y position of the mouse cursor at the time of
the event.
\sa globalX() globalPos()
*/
/*! \obsolete
\fn Qt::ButtonState QWheelEvent::state() const
Returns the keyboard modifier flags at the time of the event.
The returned value is a selection of the following values,
combined using the OR operator: Qt::ShiftButton,
Qt::ControlButton, and Qt::AltButton.
*/
/*!
\class QKeyEvent
\brief The QKeyEvent class describes a key event.
\ingroup events
Key events are sent to the widget with keyboard input focus
when keys are pressed or released.
A key event contains a special accept flag that indicates whether
the receiver will handle the key event. You should call ignore()
if the key press or release event is not handled by your widget.
A key event is propagated up the parent widget chain until a
widget accepts it with accept() or an event filter consumes it.
Key events for multimedia keys are ignored by default. You should
call accept() if your widget handles those events.
The QWidget::setEnable() function can be used to enable or disable
mouse and keyboard events for a widget.
The event handlers QWidget::keyPressEvent(), QWidget::keyReleaseEvent(),
QGraphicsItem::keyPressEvent() and QGraphicsItem::keyReleaseEvent()
receive key events.
\sa QFocusEvent, QWidget::grabKeyboard()
*/
/*!
Constructs a key event object.
The \a type parameter must be QEvent::KeyPress, QEvent::KeyRelease,
or QEvent::ShortcutOverride.
Int \a key is the code for the Qt::Key that the event loop should listen
for. If \a key is 0, the event is not a result of a known key; for
example, it may be the result of a compose sequence or keyboard macro.
The \a modifiers holds the keyboard modifiers, and the given \a text
is the Unicode text that the key generated. If \a autorep is true,
isAutoRepeat() will be true. \a count is the number of keys involved
in the event.
*/
QKeyEvent::QKeyEvent(Type type, int key, Qt::KeyboardModifiers modifiers, const QString& text,
bool autorep, ushort count)
: QInputEvent(type, modifiers), txt(text), k(key), c(count), autor(autorep)
{
}
/*!
\internal
*/
QKeyEvent::~QKeyEvent()
{
}
/*!
\internal
*/
QKeyEvent *QKeyEvent::createExtendedKeyEvent(Type type, int key, Qt::KeyboardModifiers modifiers,
quint32 nativeScanCode, quint32 nativeVirtualKey,
quint32 nativeModifiers,
const QString& text, bool autorep, ushort count)
{
return new QKeyEventEx(type, key, modifiers, text, autorep, count,
nativeScanCode, nativeVirtualKey, nativeModifiers);
}
/*!
\fn bool QKeyEvent::hasExtendedInfo() const
\internal
*/
/*!
\since 4.2
Returns the native scan code of the key event. If the key event
does not contain this data 0 is returned.
Note: The native scan code may be 0, even if the key event contains
extended information.
Note: On Mac OS/X, this function is not useful, because there is no
way to get the scan code from Carbon or Cocoa. The function always
returns 1 (or 0 in the case explained above).
*/
quint32 QKeyEvent::nativeScanCode() const
{
return (reinterpret_cast<const QKeyEvent*>(d) != this
? 0 : reinterpret_cast<const QKeyEventEx*>(this)->nScanCode);
}
/*!
\since 4.2
Returns the native virtual key, or key sym of the key event.
If the key event does not contain this data 0 is returned.
Note: The native virtual key may be 0, even if the key event contains extended information.
*/
quint32 QKeyEvent::nativeVirtualKey() const
{
return (reinterpret_cast<const QKeyEvent*>(d) != this
? 0 : reinterpret_cast<const QKeyEventEx*>(this)->nVirtualKey);
}
/*!
\since 4.2
Returns the native modifiers of a key event.
If the key event does not contain this data 0 is returned.
Note: The native modifiers may be 0, even if the key event contains extended information.
*/
quint32 QKeyEvent::nativeModifiers() const
{
return (reinterpret_cast<const QKeyEvent*>(d) != this
? 0 : reinterpret_cast<const QKeyEventEx*>(this)->nModifiers);
}
/*!
\internal
Creates an extended key event object, which in addition to the normal key event data, also
contains the native scan code, virtual key and modifiers. This extra data is used by the
shortcut system, to determine which shortcuts to trigger.
*/
QKeyEventEx::QKeyEventEx(Type type, int key, Qt::KeyboardModifiers modifiers,
const QString &text, bool autorep, ushort count,
quint32 nativeScanCode, quint32 nativeVirtualKey, quint32 nativeModifiers)
: QKeyEvent(type, key, modifiers, text, autorep, count),
nScanCode(nativeScanCode), nVirtualKey(nativeVirtualKey), nModifiers(nativeModifiers)
{
d = reinterpret_cast<QEventPrivate*>(this);
}
/*!
\internal
Creates a copy of an other extended key event.
*/
QKeyEventEx::QKeyEventEx(const QKeyEventEx &other)
: QKeyEvent(QEvent::Type(other.t), other.k, other.modState, other.txt, other.autor, other.c),
nScanCode(other.nScanCode), nVirtualKey(other.nVirtualKey), nModifiers(other.nModifiers)
{
d = reinterpret_cast<QEventPrivate*>(this);
}
/*!
\internal
*/
QKeyEventEx::~QKeyEventEx()
{
}
/*!
\fn int QKeyEvent::key() const
Returns the code of the key that was pressed or released.
See \l Qt::Key for the list of keyboard codes. These codes are
independent of the underlying window system. Note that this
function does not distinguish between capital and non-capital
letters, use the text() function (returning the Unicode text the
key generated) for this purpose.
A value of either 0 or Qt::Key_unknown means that the event is not
the result of a known key; for example, it may be the result of
a compose sequence, a keyboard macro, or due to key event
compression.
\sa Qt::WA_KeyCompression
*/
/*!
\fn QString QKeyEvent::text() const
Returns the Unicode text that this key generated. The text
returned can be an empty string in cases
where modifier keys, such as Shift, Control, Alt, and Meta,
are being pressed or released. In such cases key() will contain
a valid value.
\sa Qt::WA_KeyCompression
*/
/*!
Returns the keyboard modifier flags that existed immediately
after the event occurred.
\warning This function cannot always be trusted. The user can
confuse it by pressing both \key{Shift} keys simultaneously and
releasing one of them, for example.
\sa QApplication::keyboardModifiers()
*/
//###### We must check with XGetModifierMapping
Qt::KeyboardModifiers QKeyEvent::modifiers() const
{
if (key() == Qt::Key_Shift)
return Qt::KeyboardModifiers(QInputEvent::modifiers()^Qt::ShiftModifier);
if (key() == Qt::Key_Control)
return Qt::KeyboardModifiers(QInputEvent::modifiers()^Qt::ControlModifier);
if (key() == Qt::Key_Alt)
return Qt::KeyboardModifiers(QInputEvent::modifiers()^Qt::AltModifier);
if (key() == Qt::Key_Meta)
return Qt::KeyboardModifiers(QInputEvent::modifiers()^Qt::MetaModifier);
return QInputEvent::modifiers();
}
#ifndef QT_NO_SHORTCUT
/*!
\fn bool QKeyEvent::matches(QKeySequence::StandardKey key) const
\since 4.2
Returns true if the key event matches the given standard \a key;
otherwise returns false.
*/
bool QKeyEvent::matches(QKeySequence::StandardKey matchKey) const
{
uint searchkey = (modifiers() | key()) & ~(Qt::KeypadModifier); //The keypad modifier should not make a difference
uint platform = QApplicationPrivate::currentPlatform();
#ifdef Q_WS_MAC
if (qApp->testAttribute(Qt::AA_MacDontSwapCtrlAndMeta)) {
uint oldSearchKey = searchkey;
searchkey &= ~(Qt::ControlModifier | Qt::MetaModifier);
if (oldSearchKey & Qt::ControlModifier)
searchkey |= Qt::MetaModifier;
if (oldSearchKey & Qt::MetaModifier)
searchkey |= Qt::ControlModifier;
}
#endif
uint N = QKeySequencePrivate::numberOfKeyBindings;
int first = 0;
int last = N - 1;
while (first <= last) {
int mid = (first + last) / 2;
QKeyBinding midVal = QKeySequencePrivate::keyBindings[mid];
if (searchkey > midVal.shortcut){
first = mid + 1; // Search in top half
}
else if (searchkey < midVal.shortcut){
last = mid - 1; // Search in bottom half
}
else {
//found correct shortcut value, now we must check for platform match
if ((midVal.platform & platform) && (midVal.standardKey == matchKey)) {
return true;
} else { //We may have several equal values for different platforms, so we must search in both directions
//search forward
for ( unsigned int i = mid + 1 ; i < N - 1 ; ++i) {
QKeyBinding current = QKeySequencePrivate::keyBindings[i];
if (current.shortcut != searchkey)
break;
else if (current.platform & platform && current.standardKey == matchKey)
return true;
}
//search back
for ( int i = mid - 1 ; i >= 0 ; --i) {
QKeyBinding current = QKeySequencePrivate::keyBindings[i];
if (current.shortcut != searchkey)
break;
else if (current.platform & platform && current.standardKey == matchKey)
return true;
}
return false; //we could not find it among the matching keySequences
}
}
}
return false; //we could not find matching keySequences at all
}
#endif // QT_NO_SHORTCUT
/*!
\fn bool QKeyEvent::isAutoRepeat() const
Returns true if this event comes from an auto-repeating key;
returns false if it comes from an initial key press.
Note that if the event is a multiple-key compressed event that is
partly due to auto-repeat, this function could return either true
or false indeterminately.
*/
/*!
\fn int QKeyEvent::count() const
Returns the number of keys involved in this event. If text()
is not empty, this is simply the length of the string.
\sa Qt::WA_KeyCompression
*/
#ifdef QT3_SUPPORT
/*!
\fn QKeyEvent::QKeyEvent(Type type, int key, int ascii,
int modifiers, const QString &text,
bool autorep, ushort count)
Use one of the other constructors instead.
*/
/*!
\fn int QKeyEvent::ascii() const
Use text() instead.
*/
/*!
\fn Qt::ButtonState QKeyEvent::state() const
Use QInputEvent::modifiers() instead.
*/
/*!
\fn Qt::ButtonState QKeyEvent::stateAfter() const
Use modifiers() instead.
*/
#endif
/*!
\class QFocusEvent
\brief The QFocusEvent class contains event parameters for widget focus
events.
\ingroup events
Focus events are sent to widgets when the keyboard input focus
changes. Focus events occur due to mouse actions, key presses
(such as \gui{Tab} or \gui{Backtab}), the window system, popup
menus, keyboard shortcuts, or other application-specific reasons.
The reason for a particular focus event is returned by reason()
in the appropriate event handler.
The event handlers QWidget::focusInEvent(),
QWidget::focusOutEvent(), QGraphicsItem::focusInEvent and
QGraphicsItem::focusOutEvent() receive focus events.
\sa QWidget::setFocus(), QWidget::setFocusPolicy(), {Keyboard Focus}
*/
/*!
Constructs a focus event object.
The \a type parameter must be either QEvent::FocusIn or
QEvent::FocusOut. The \a reason describes the cause of the change
in focus.
*/
QFocusEvent::QFocusEvent(Type type, Qt::FocusReason reason)
: QEvent(type), m_reason(reason)
{}
/*!
\internal
*/
QFocusEvent::~QFocusEvent()
{
}
// ### Qt 5: remove
/*!
\internal
*/
Qt::FocusReason QFocusEvent::reason()
{
return m_reason;
}
/*!
Returns the reason for this focus event.
*/
Qt::FocusReason QFocusEvent::reason() const
{
return m_reason;
}
/*!
\fn bool QFocusEvent::gotFocus() const
Returns true if type() is QEvent::FocusIn; otherwise returns
false.
*/
/*!
\fn bool QFocusEvent::lostFocus() const
Returns true if type() is QEvent::FocusOut; otherwise returns
false.
*/
#ifdef QT3_SUPPORT
/*!
\enum QFocusEvent::Reason
\compat
Use Qt::FocusReason instead.
\value Mouse Same as Qt::MouseFocusReason.
\value Tab Same as Qt::TabFocusReason.
\value Backtab Same as Qt::BacktabFocusReason.
\value MenuBar Same as Qt::MenuBarFocusReason.
\value ActiveWindow Same as Qt::ActiveWindowFocusReason
\value Other Same as Qt::OtherFocusReason
\value Popup Same as Qt::PopupFocusReason
\value Shortcut Same as Qt::ShortcutFocusReason
*/
#endif
/*!
\class QPaintEvent
\brief The QPaintEvent class contains event parameters for paint events.
\ingroup events
Paint events are sent to widgets that need to update themselves,
for instance when part of a widget is exposed because a covering
widget was moved.
The event contains a region() that needs to be updated, and a
rect() that is the bounding rectangle of that region. Both are
provided because many widgets can't make much use of region(),
and rect() can be much faster than region().boundingRect().
\section1 Automatic Clipping
Painting is clipped to region() during the processing of a paint
event. This clipping is performed by Qt's paint system and is
independent of any clipping that may be applied to a QPainter used to
draw on the paint device.
As a result, the value returned by QPainter::clipRegion() on
a newly-constructed QPainter will not reflect the clip region that is
used by the paint system.
\sa QPainter, QWidget::update(), QWidget::repaint(),
QWidget::paintEvent()
*/
/*!
\fn bool QPaintEvent::erased() const
\compat
Returns true if the paint event region (or rectangle) has been
erased with the widget's background; otherwise returns false.
Qt 4 \e always erases regions that require painting. The exception
to this rule is if the widget sets the Qt::WA_OpaquePaintEvent or
Qt::WA_NoSystemBackground attributes. If either one of those
attributes is set \e and the window system does not make use of
subwidget alpha composition (currently X11 and Windows, but this
may change), then the region is not erased.
*/
/*!
\fn void QPaintEvent::setErased(bool b) { m_erased = b; }
\internal
*/
/*!
Constructs a paint event object with the region that needs to
be updated. The region is specified by \a paintRegion.
*/
QPaintEvent::QPaintEvent(const QRegion& paintRegion)
: QEvent(Paint), m_rect(paintRegion.boundingRect()), m_region(paintRegion), m_erased(false)
{}
/*!
Constructs a paint event object with the rectangle that needs
to be updated. The region is specified by \a paintRect.
*/
QPaintEvent::QPaintEvent(const QRect &paintRect)
: QEvent(Paint), m_rect(paintRect),m_region(paintRect), m_erased(false)
{}
#ifdef QT3_SUPPORT
/*!
Constructs a paint event object with both a \a paintRegion and a
\a paintRect, both of which represent the area of the widget that
needs to be updated.
*/
QPaintEvent::QPaintEvent(const QRegion &paintRegion, const QRect &paintRect)
: QEvent(Paint), m_rect(paintRect), m_region(paintRegion), m_erased(false)
{}
#endif
/*!
\internal
*/
QPaintEvent::~QPaintEvent()
{
}
/*!
\fn const QRect &QPaintEvent::rect() const
Returns the rectangle that needs to be updated.
\sa region() QPainter::setClipRect()
*/
/*!
\fn const QRegion &QPaintEvent::region() const
Returns the region that needs to be updated.
\sa rect() QPainter::setClipRegion()
*/
QUpdateLaterEvent::QUpdateLaterEvent(const QRegion& paintRegion)
: QEvent(UpdateLater), m_region(paintRegion)
{
}
QUpdateLaterEvent::~QUpdateLaterEvent()
{
}
/*!
\class QMoveEvent
\brief The QMoveEvent class contains event parameters for move events.
\ingroup events
Move events are sent to widgets that have been moved to a new
position relative to their parent.
The event handler QWidget::moveEvent() receives move events.
\sa QWidget::move(), QWidget::setGeometry()
*/
/*!
Constructs a move event with the new and old widget positions,
\a pos and \a oldPos respectively.
*/
QMoveEvent::QMoveEvent(const QPoint &pos, const QPoint &oldPos)
: QEvent(Move), p(pos), oldp(oldPos)
{}
/*!
\internal
*/
QMoveEvent::~QMoveEvent()
{
}
/*!
\fn const QPoint &QMoveEvent::pos() const
Returns the new position of the widget. This excludes the window
frame for top level widgets.
*/
/*!
\fn const QPoint &QMoveEvent::oldPos() const
Returns the old position of the widget.
*/
/*!
\class QResizeEvent
\brief The QResizeEvent class contains event parameters for resize events.
\ingroup events
Resize events are sent to widgets that have been resized.
The event handler QWidget::resizeEvent() receives resize events.
\sa QWidget::resize() QWidget::setGeometry()
*/
/*!
Constructs a resize event with the new and old widget sizes, \a
size and \a oldSize respectively.
*/
QResizeEvent::QResizeEvent(const QSize &size, const QSize &oldSize)
: QEvent(Resize), s(size), olds(oldSize)
{}
/*!
\internal
*/
QResizeEvent::~QResizeEvent()
{
}
/*!
\fn const QSize &QResizeEvent::size() const
Returns the new size of the widget. This is the same as
QWidget::size().
*/
/*!
\fn const QSize &QResizeEvent::oldSize() const
Returns the old size of the widget.
*/
/*!
\class QCloseEvent
\brief The QCloseEvent class contains parameters that describe a close event.
\ingroup events
Close events are sent to widgets that the user wants to close,
usually by choosing "Close" from the window menu, or by clicking
the \gui{X} title bar button. They are also sent when you call
QWidget::close() to close a widget programmatically.
Close events contain a flag that indicates whether the receiver
wants the widget to be closed or not. When a widget accepts the
close event, it is hidden (and destroyed if it was created with
the Qt::WA_DeleteOnClose flag). If it refuses to accept the close
event nothing happens. (Under X11 it is possible that the window
manager will forcibly close the window; but at the time of writing
we are not aware of any window manager that does this.)
The event handler QWidget::closeEvent() receives close events. The
default implementation of this event handler accepts the close
event. If you do not want your widget to be hidden, or want some
special handing, you should reimplement the event handler and
ignore() the event.
The \l{mainwindows/application#close event handler}{closeEvent() in the
Application example} shows a close event handler that
asks whether to save a document before closing.
If you want the widget to be deleted when it is closed, create it
with the Qt::WA_DeleteOnClose flag. This is very useful for
independent top-level windows in a multi-window application.
\l{QObject}s emits the \l{QObject::destroyed()}{destroyed()}
signal when they are deleted.
If the last top-level window is closed, the
QApplication::lastWindowClosed() signal is emitted.
The isAccepted() function returns true if the event's receiver has
agreed to close the widget; call accept() to agree to close the
widget and call ignore() if the receiver of this event does not
want the widget to be closed.
\sa QWidget::close(), QWidget::hide(), QObject::destroyed(),
QCoreApplication::exec(), QCoreApplication::quit(),
QApplication::lastWindowClosed()
*/
/*!
Constructs a close event object.
\sa accept()
*/
QCloseEvent::QCloseEvent()
: QEvent(Close)
{}
/*! \internal
*/
QCloseEvent::~QCloseEvent()
{
}
/*!
\class QIconDragEvent
\brief The QIconDragEvent class indicates that a main icon drag has begun.
\ingroup events
Icon drag events are sent to widgets when the main icon of a window
has been dragged away. On Mac OS X, this happens when the proxy
icon of a window is dragged off the title bar.
It is normal to begin using drag and drop in response to this
event.
\sa {Drag and Drop}, QMimeData, QDrag
*/
/*!
Constructs an icon drag event object with the accept flag set to
false.
\sa accept()
*/
QIconDragEvent::QIconDragEvent()
: QEvent(IconDrag)
{ ignore(); }
/*! \internal */
QIconDragEvent::~QIconDragEvent()
{
}
/*!
\class QContextMenuEvent
\brief The QContextMenuEvent class contains parameters that describe a context menu event.
\ingroup events
Context menu events are sent to widgets when a user performs
an action associated with opening a context menu.
The actions required to open context menus vary between platforms;
for example, on Windows, pressing the menu button or clicking the
right mouse button will cause this event to be sent.
When this event occurs it is customary to show a QMenu with a
context menu, if this is relevant to the context.
Context menu events contain a special accept flag that indicates
whether the receiver accepted the event. If the event handler does
not accept the event then, if possible, whatever triggered the event will be
handled as a regular input event.
*/
#ifndef QT_NO_CONTEXTMENU
/*!
Constructs a context menu event object with the accept parameter
flag set to false.
The \a reason parameter must be QContextMenuEvent::Mouse or
QContextMenuEvent::Keyboard.
The \a pos parameter specifies the mouse position relative to the
receiving widget. \a globalPos is the mouse position in absolute
coordinates.
*/
QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos, const QPoint &globalPos)
: QInputEvent(ContextMenu), p(pos), gp(globalPos), reas(reason)
{}
/*!
Constructs a context menu event object with the accept parameter
flag set to false.
The \a reason parameter must be QContextMenuEvent::Mouse or
QContextMenuEvent::Keyboard.
The \a pos parameter specifies the mouse position relative to the
receiving widget. \a globalPos is the mouse position in absolute
coordinates. The \a modifiers holds the keyboard modifiers.
*/
QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos, const QPoint &globalPos,
Qt::KeyboardModifiers modifiers)
: QInputEvent(ContextMenu, modifiers), p(pos), gp(globalPos), reas(reason)
{}
#ifdef QT3_SUPPORT
/*!
Constructs a context menu event with the given \a reason for the
position specified by \a pos in widget coordinates and \a globalPos
in global screen coordinates. \a dummy is ignored.
*/
QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos, const QPoint &globalPos,
int /* dummy */)
: QInputEvent(ContextMenu), p(pos), gp(globalPos), reas(reason)
{}
#endif
/*! \internal */
QContextMenuEvent::~QContextMenuEvent()
{
}
/*!
Constructs a context menu event object with the accept parameter
flag set to false.
The \a reason parameter must be QContextMenuEvent::Mouse or
QContextMenuEvent::Keyboard.
The \a pos parameter specifies the mouse position relative to the
receiving widget.
The globalPos() is initialized to QCursor::pos(), which may not be
appropriate. Use the other constructor to specify the global
position explicitly.
*/
QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos)
: QInputEvent(ContextMenu), p(pos), reas(reason)
{
gp = QCursor::pos();
}
#ifdef QT3_SUPPORT
/*!
Constructs a context menu event with the given \a reason for the
position specified by \a pos in widget coordinates. \a dummy is
ignored.
*/
QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos, int /* dummy */)
: QInputEvent(ContextMenu), p(pos), reas(reason)
{
gp = QCursor::pos();
}
Qt::ButtonState QContextMenuEvent::state() const
{
return Qt::ButtonState(int(QApplication::keyboardModifiers())|QApplication::mouseButtons());
}
#endif
/*!
\fn const QPoint &QContextMenuEvent::pos() const
Returns the position of the mouse pointer relative to the widget
that received the event.
\sa x(), y(), globalPos()
*/
/*!
\fn int QContextMenuEvent::x() const
Returns the x position of the mouse pointer, relative to the
widget that received the event.
\sa y(), pos()
*/
/*!
\fn int QContextMenuEvent::y() const
Returns the y position of the mouse pointer, relative to the
widget that received the event.
\sa x(), pos()
*/
/*!
\fn const QPoint &QContextMenuEvent::globalPos() const
Returns the global position of the mouse pointer at the time of
the event.
\sa x(), y(), pos()
*/
/*!
\fn int QContextMenuEvent::globalX() const
Returns the global x position of the mouse pointer at the time of
the event.
\sa globalY(), globalPos()
*/
/*!
\fn int QContextMenuEvent::globalY() const
Returns the global y position of the mouse pointer at the time of
the event.
\sa globalX(), globalPos()
*/
#endif // QT_NO_CONTEXTMENU
/*!
\fn Qt::ButtonState QContextMenuEvent::state() const
Returns the button state (a combination of mouse buttons
and keyboard modifiers) immediately before the event was
generated.
The returned value is a selection of the following values,
combined with the OR operator:
Qt::LeftButton, Qt::RightButton, Qt::MidButton,
Qt::ShiftButton, Qt::ControlButton, and Qt::AltButton.
*/
/*!
\enum QContextMenuEvent::Reason
This enum describes the reason why the event was sent.
\value Mouse The mouse caused the event to be sent. Normally this
means the right mouse button was clicked, but this is platform
dependent.
\value Keyboard The keyboard caused this event to be sent. On
Windows, this means the menu button was pressed.
\value Other The event was sent by some other means (i.e. not by
the mouse or keyboard).
*/
/*!
\fn QContextMenuEvent::Reason QContextMenuEvent::reason() const
Returns the reason for this context event.
*/
/*!
\class QInputMethodEvent
\brief The QInputMethodEvent class provides parameters for input method events.
\ingroup events
Input method events are sent to widgets when an input method is
used to enter text into a widget. Input methods are widely used
to enter text for languages with non-Latin alphabets.
Note that when creating custom text editing widgets, the
Qt::WA_InputMethodEnabled window attribute must be set explicitly
(using the QWidget::setAttribute() function) in order to receive
input method events.
The events are of interest to authors of keyboard entry widgets
who want to be able to correctly handle languages with complex
character input. Text input in such languages is usually a three
step process:
\list 1
\o \bold{Starting to Compose}
When the user presses the first key on a keyboard, an input
context is created. This input context will contain a string
of the typed characters.
\o \bold{Composing}
With every new key pressed, the input method will try to create a
matching string for the text typed so far called preedit
string. While the input context is active, the user can only move
the cursor inside the string belonging to this input context.
\o \bold{Completing}
At some point, the user will activate a user interface component
(perhaps using a particular key) where they can choose from a
number of strings matching the text they have typed so far. The
user can either confirm their choice cancel the input; in either
case the input context will be closed.
\endlist
QInputMethodEvent models these three stages, and transfers the
information needed to correctly render the intermediate result. A
QInputMethodEvent has two main parameters: preeditString() and
commitString(). The preeditString() parameter gives the currently
active preedit string. The commitString() parameter gives a text
that should get added to (or replace parts of) the text of the
editor widget. It usually is a result of the input operations and
has to be inserted to the widgets text directly before the preedit
string.
If the commitString() should replace parts of the of the text in
the editor, replacementLength() will contain the number of
characters to be replaced. replacementStart() contains the position
at which characters are to be replaced relative from the start of
the preedit string.
A number of attributes control the visual appearance of the
preedit string (the visual appearance of text outside the preedit
string is controlled by the widget only). The AttributeType enum
describes the different attributes that can be set.
A class implementing QWidget::inputMethodEvent() or
QGraphicsItem::inputMethodEvent() should at least understand and
honor the \l TextFormat and \l Cursor attributes.
Since input methods need to be able to query certain properties
from the widget or graphics item, subclasses must also implement
QWidget::inputMethodQuery() and QGraphicsItem::inputMethodQuery(),
respectively.
When receiving an input method event, the text widget has to performs the
following steps:
\list 1
\o If the widget has selected text, the selected text should get
removed.
\o Remove the text starting at replacementStart() with length
replacementLength() and replace it by the commitString(). If
replacementLength() is 0, replacementStart() gives the insertion
position for the commitString().
When doing replacement the area of the preedit
string is ignored, thus a replacement starting at -1 with a length
of 2 will remove the last character before the preedit string and
the first character afterwards, and insert the commit string
directly before the preedit string.
If the widget implements undo/redo, this operation gets added to
the undo stack.
\o If there is no current preedit string, insert the
preeditString() at the current cursor position; otherwise replace
the previous preeditString with the one received from this event.
If the widget implements undo/redo, the preeditString() should not
influence the undo/redo stack in any way.
The widget should examine the list of attributes to apply to the
preedit string. It has to understand at least the TextFormat and
Cursor attributes and render them as specified.
\endlist
\sa QInputContext
*/
/*!
\enum QInputMethodEvent::AttributeType
\value TextFormat
A QTextCharFormat for the part of the preedit string specified by
start and length. value contains a QVariant of type QTextFormat
specifying rendering of this part of the preedit string. There
should be at most one format for every part of the preedit
string. If several are specified for any character in the string the
behaviour is undefined. A conforming implementation has to at least
honor the backgroundColor, textColor and fontUnderline properties
of the format.
\value Cursor If set, a cursor should be shown inside the preedit
string at position start. The length variable determines whether
the cursor is visible or not. If the length is 0 the cursor is
invisible. If value is a QVariant of type QColor this color will
be used for rendering the cursor, otherwise the color of the
surrounding text will be used. There should be at most one Cursor
attribute per event. If several are specified the behaviour is
undefined.
\value Language
The variant contains a QLocale object specifying the language of a
certain part of the preedit string. There should be at most one
language set for every part of the preedit string. If several are
specified for any character in the string the behavior is undefined.
\value Ruby
The ruby text for a part of the preedit string. There should be at
most one ruby text set for every part of the preedit string. If
several are specified for any character in the string the behaviour
is undefined.
\value Selection
If set, the edit cursor should be moved to the specified position
in the editor text contents. In contrast with \c Cursor, this
attribute does not work on the preedit text, but on the surrounding
text. The cursor will be moved after the commit string has been
committed, and the preedit string will be located at the new edit
position.
The start position specifies the new position and the length
variable can be used to set a selection starting from that point.
The value is unused.
\sa Attribute
*/
/*!
\class QInputMethodEvent::Attribute
\brief The QInputMethodEvent::Attribute class stores an input method attribute.
*/
/*!
\fn QInputMethodEvent::Attribute::Attribute(AttributeType type, int start, int length, QVariant value)
Constructs an input method attribute. \a type specifies the type
of attribute, \a start and \a length the position of the
attribute, and \a value the value of the attribute.
*/
/*!
Constructs an event of type QEvent::InputMethod. The
attributes(), preeditString(), commitString(), replacementStart(),
and replacementLength() are initialized to default values.
\sa setCommitString()
*/
QInputMethodEvent::QInputMethodEvent()
: QEvent(QEvent::InputMethod), replace_from(0), replace_length(0)
{
}
/*!
Construcs an event of type QEvent::InputMethod. The
preedit text is set to \a preeditText, the attributes to
\a attributes.
The commitString(), replacementStart(), and replacementLength()
values can be set using setCommitString().
\sa preeditString(), attributes()
*/
QInputMethodEvent::QInputMethodEvent(const QString &preeditText, const QList<Attribute> &attributes)
: QEvent(QEvent::InputMethod), preedit(preeditText), attrs(attributes),
replace_from(0), replace_length(0)
{
}
/*!
Constructs a copy of \a other.
*/
QInputMethodEvent::QInputMethodEvent(const QInputMethodEvent &other)
: QEvent(QEvent::InputMethod), preedit(other.preedit), attrs(other.attrs),
commit(other.commit), replace_from(other.replace_from), replace_length(other.replace_length)
{
}
/*!
Sets the commit string to \a commitString.
The commit string is the text that should get added to (or
replace parts of) the text of the editor widget. It usually is a
result of the input operations and has to be inserted to the
widgets text directly before the preedit string.
If the commit string should replace parts of the of the text in
the editor, \a replaceLength specifies the number of
characters to be replaced. \a replaceFrom specifies the position
at which characters are to be replaced relative from the start of
the preedit string.
\sa commitString(), replacementStart(), replacementLength()
*/
void QInputMethodEvent::setCommitString(const QString &commitString, int replaceFrom, int replaceLength)
{
commit = commitString;
replace_from = replaceFrom;
replace_length = replaceLength;
}
/*!
\fn const QList<Attribute> &QInputMethodEvent::attributes() const
Returns the list of attributes passed to the QInputMethodEvent
constructor. The attributes control the visual appearance of the
preedit string (the visual appearance of text outside the preedit
string is controlled by the widget only).
\sa preeditString(), Attribute
*/
/*!
\fn const QString &QInputMethodEvent::preeditString() const
Returns the preedit text, i.e. the text before the user started
editing it.
\sa commitString(), attributes()
*/
/*!
\fn const QString &QInputMethodEvent::commitString() const
Returns the text that should get added to (or replace parts of)
the text of the editor widget. It usually is a result of the
input operations and has to be inserted to the widgets text
directly before the preedit string.
\sa setCommitString(), preeditString(), replacementStart(), replacementLength()
*/
/*!
\fn int QInputMethodEvent::replacementStart() const
Returns the position at which characters are to be replaced relative
from the start of the preedit string.
\sa replacementLength(), setCommitString()
*/
/*!
\fn int QInputMethodEvent::replacementLength() const
Returns the number of characters to be replaced in the preedit
string.
\sa replacementStart(), setCommitString()
*/
#ifndef QT_NO_TABLETEVENT
/*!
\class QTabletEvent
\brief The QTabletEvent class contains parameters that describe a Tablet event.
\ingroup events
Tablet Events are generated from a Wacom tablet. Most of the time you will
want to deal with events from the tablet as if they were events from a
mouse; for example, you would retrieve the cursor position with x(), y(),
pos(), globalX(), globalY(), and globalPos(). In some situations you may
wish to retrieve the extra information provided by the tablet device
driver; for example, you might want to do subpixeling with higher
resolution coordinates or you may want to adjust color brightness based on
pressure. QTabletEvent allows you to read the pressure(), the xTilt(), and
yTilt(), as well as the type of device being used with device() (see
\l{TabletDevice}). It can also give you the minimum and maximum values for
each device's pressure and high resolution coordinates.
A tablet event contains a special accept flag that indicates whether the
receiver wants the event. You should call QTabletEvent::accept() if you
handle the tablet event; otherwise it will be sent to the parent widget.
The exception are TabletEnterProximity and TabletLeaveProximity events,
these are only sent to QApplication and don't check whether or not they are
accepted.
The QWidget::setEnabled() function can be used to enable or
disable mouse and keyboard events for a widget.
The event handler QWidget::tabletEvent() receives all three types of
tablet events. Qt will first send a tabletEvent then, if it is not
accepted, it will send a mouse event. This allows applications that
don't utilize tablets to use a tablet like a mouse, while also
enabling those who want to use both tablets and mouses differently.
\section1 Notes for X11 Users
Qt uses the following hard-coded names to identify tablet
devices from the xorg.conf file on X11 (apart from IRIX):
'stylus', 'pen', and 'eraser'. If the devices have other names,
they will not be picked up Qt.
*/
/*!
\enum QTabletEvent::TabletDevice
This enum defines what type of device is generating the event.
\value NoDevice No device, or an unknown device.
\value Puck A Puck (a device that is similar to a flat mouse with
a transparent circle with cross-hairs).
\value Stylus A Stylus.
\value Airbrush An airbrush
\value FourDMouse A 4D Mouse.
\value RotationStylus A special stylus that also knows about rotation
(a 6D stylus). \since 4.1
\omitvalue XFreeEraser
*/
/*!
\enum QTabletEvent::PointerType
This enum defines what type of point is generating the event.
\value UnknownPointer An unknown device.
\value Pen Tip end of a stylus-like device (the narrow end of the pen).
\value Cursor Any puck-like device.
\value Eraser Eraser end of a stylus-like device (the broad end of the pen).
\sa pointerType()
*/
/*!
Construct a tablet event of the given \a type.
The \a pos parameter indicates where the event occurred in the
widget; \a globalPos is the corresponding position in absolute
coordinates. The \a hiResGlobalPos contains a high resolution
measurement of the position.
\a pressure contains the pressure exerted on the \a device.
\a pointerType describes the type of pen that is being used.
\a xTilt and \a yTilt contain the device's degree of tilt from the
x and y axes respectively.
\a keyState specifies which keyboard modifiers are pressed (e.g.,
\key{Ctrl}).
The \a uniqueID parameter contains the unique ID for the current device.
The \a z parameter contains the coordinate of the device on the tablet, this
is usually given by a wheel on 4D mouse. If the device does not support a
Z-axis, pass zero here.
The \a tangentialPressure paramater contins the tangential pressure of an air
brush. If the device does not support tangential pressure, pass 0 here.
\a rotation contains the device's rotation in degrees. 4D mice support
rotation. If the device does not support rotation, pass 0 here.
\sa pos() globalPos() device() pressure() xTilt() yTilt() uniqueId(), rotation(), tangentialPressure(), z()
*/
QTabletEvent::QTabletEvent(Type type, const QPoint &pos, const QPoint &globalPos,
const QPointF &hiResGlobalPos, int device, int pointerType,
qreal pressure, int xTilt, int yTilt, qreal tangentialPressure,
qreal rotation, int z, Qt::KeyboardModifiers keyState, qint64 uniqueID)
: QInputEvent(type, keyState),
mPos(pos),
mGPos(globalPos),
mHiResGlobalPos(hiResGlobalPos),
mDev(device),
mPointerType(pointerType),
mXT(xTilt),
mYT(yTilt),
mZ(z),
mPress(pressure),
mTangential(tangentialPressure),
mRot(rotation),
mUnique(uniqueID),
mExtra(0)
{
}
/*!
\internal
*/
QTabletEvent::~QTabletEvent()
{
}
/*!
\fn TabletDevices QTabletEvent::device() const
Returns the type of device that generated the event.
\sa TabletDevice
*/
/*!
\fn PointerType QTabletEvent::pointerType() const
Returns the type of point that generated the event.
*/
/*!
\fn qreal QTabletEvent::tangentialPressure() const
Returns the tangential pressure for the device. This is typically given by a finger
wheel on an airbrush tool. The range is from -1.0 to 1.0. 0.0 indicates a
neutral position. Current airbrushes can only move in the positive
direction from the neutrual position. If the device does not support
tangential pressure, this value is always 0.0.
\sa pressure()
*/
/*!
\fn qreal QTabletEvent::rotation() const
Returns the rotation of the current device in degress. This is usually
given by a 4D Mouse. If the device doesn't support rotation this value is
always 0.0.
*/
/*!
\fn qreal QTabletEvent::pressure() const
Returns the pressure for the device. 0.0 indicates that the stylus is not
on the tablet, 1.0 indicates the maximum amount of pressure for the stylus.
\sa tangentialPressure()
*/
/*!
\fn int QTabletEvent::xTilt() const
Returns the angle between the device (a pen, for example) and the
perpendicular in the direction of the x axis.
Positive values are towards the tablet's physical right. The angle
is in the range -60 to +60 degrees.
\img qtabletevent-tilt.png
\sa yTilt()
*/
/*!
\fn int QTabletEvent::yTilt() const
Returns the angle between the device (a pen, for example) and the
perpendicular in the direction of the y axis.
Positive values are towards the bottom of the tablet. The angle is
within the range -60 to +60 degrees.
\sa xTilt()
*/
/*!
\fn const QPoint &QTabletEvent::pos() const
Returns the position of the device, relative to the widget that
received the event.
If you move widgets around in response to mouse events, use
globalPos() instead of this function.
\sa x() y() globalPos()
*/
/*!
\fn int QTabletEvent::x() const
Returns the x position of the device, relative to the widget that
received the event.
\sa y() pos()
*/
/*!
\fn int QTabletEvent::y() const
Returns the y position of the device, relative to the widget that
received the event.
\sa x() pos()
*/
/*!
\fn int QTabletEvent::z() const
Returns the z position of the device. Typically this is represented by a
wheel on a 4D Mouse. If the device does not support a Z-axis, this value is
always zero. This is \bold not the same as pressure.
\sa pressure()
*/
/*!
\fn const QPoint &QTabletEvent::globalPos() const
Returns the global position of the device \e{at the time of the
event}. This is important on asynchronous windows systems like X11;
whenever you move your widgets around in response to mouse events,
globalPos() can differ significantly from the current position
QCursor::pos().
\sa globalX() globalY() hiResGlobalPos()
*/
/*!
\fn int QTabletEvent::globalX() const
Returns the global x position of the mouse pointer at the time of
the event.
\sa globalY() globalPos() hiResGlobalX()
*/
/*!
\fn int QTabletEvent::globalY() const
Returns the global y position of the tablet device at the time of
the event.
\sa globalX() globalPos() hiResGlobalY()
*/
/*!
\fn qint64 QTabletEvent::uniqueId() const
Returns a unique ID for the current device, making it possible
to differentiate between multiple devices being used at the same
time on the tablet.
Support of this feature is dependent on the tablet.
Values for the same device may vary from OS to OS.
Later versions of the Wacom driver for Linux will now report
the ID information. If you have a tablet that supports unique ID
and are not getting the information on Linux, consider upgrading
your driver.
As of Qt 4.2, the unique ID is the same regardless of the orientation
of the pen. Earlier versions would report a different value when using
the eraser-end versus the pen-end of the stylus on some OS's.
\sa pointerType()
*/
/*!
\fn const QPointF &QTabletEvent::hiResGlobalPos() const
The high precision coordinates delivered from the tablet expressed.
Sub pixeling information is in the fractional part of the QPointF.
\sa globalPos() hiResGlobalX() hiResGlobalY()
*/
/*!
\fn qreal &QTabletEvent::hiResGlobalX() const
The high precision x position of the tablet device.
*/
/*!
\fn qreal &QTabletEvent::hiResGlobalY() const
The high precision y position of the tablet device.
*/
#endif // QT_NO_TABLETEVENT
#ifndef QT_NO_DRAGANDDROP
/*!
Creates a QDragMoveEvent of the required \a type indicating
that the mouse is at position \a pos given within a widget.
The mouse and keyboard states are specified by \a buttons and
\a modifiers, and the \a actions describe the types of drag
and drop operation that are possible.
The drag data is passed as MIME-encoded information in \a data.
\warning Do not attempt to create a QDragMoveEvent yourself.
These objects rely on Qt's internal state.
*/
QDragMoveEvent::QDragMoveEvent(const QPoint& pos, Qt::DropActions actions, const QMimeData *data,
Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Type type)
: QDropEvent(pos, actions, data, buttons, modifiers, type)
, rect(pos, QSize(1, 1))
{}
/*!
Destroys the event.
*/
QDragMoveEvent::~QDragMoveEvent()
{
}
/*!
\fn void QDragMoveEvent::accept(bool y)
Calls setAccepted(\a y) instead.
*/
/*!
\fn void QDragMoveEvent::accept(const QRect &rectangle)
The same as accept(), but also notifies that future moves will
also be acceptable if they remain within the \a rectangle
given on the widget. This can improve performance, but may
also be ignored by the underlying system.
If the rectangle is empty, drag move events will be sent
continuously. This is useful if the source is scrolling in a
timer event.
*/
/*!
\fn void QDragMoveEvent::accept()
\overload
Calls QDropEvent::accept().
*/
/*!
\fn void QDragMoveEvent::ignore()
\overload
Calls QDropEvent::ignore().
*/
/*!
\fn void QDragMoveEvent::ignore(const QRect &rectangle)
The opposite of the accept(const QRect&) function.
Moves within the \a rectangle are not acceptable, and will be
ignored.
*/
/*!
\fn QRect QDragMoveEvent::answerRect() const
Returns the rectangle in the widget where the drop will occur if accepted.
You can use this information to restrict drops to certain places on the
widget.
*/
/*!
\class QDropEvent
\ingroup events
\ingroup draganddrop
\brief The QDropEvent class provides an event which is sent when a
drag and drop action is completed.
When a widget \l{QWidget::setAcceptDrops()}{accepts drop events}, it will
receive this event if it has accepted the most recent QDragEnterEvent or
QDragMoveEvent sent to it.
The drop event contains a proposed action, available from proposedAction(), for
the widget to either accept or ignore. If the action can be handled by the
widget, you should call the acceptProposedAction() function. Since the
proposed action can be a combination of \l Qt::DropAction values, it may be
useful to either select one of these values as a default action or ask
the user to select their preferred action.
If the proposed drop action is not suitable, perhaps because your custom
widget does not support that action, you can replace it with any of the
\l{possibleActions()}{possible drop actions} by calling setDropAction()
with your preferred action. If you set a value that is not present in the
bitwise OR combination of values returned by possibleActions(), the default
copy action will be used. Once a replacement drop action has been set, call
accept() instead of acceptProposedAction() to complete the drop operation.
The mimeData() function provides the data dropped on the widget in a QMimeData
object. This contains information about the MIME type of the data in addition to
the data itself.
\sa QMimeData, QDrag, {Drag and Drop}
*/
/*!
\fn const QMimeData *QDropEvent::mimeData() const
Returns the data that was dropped on the widget and its associated MIME
type information.
*/
/*!
Constructs a drop event of a certain \a type corresponding to a
drop at the point specified by \a pos in the destination widget's
coordinate system.
The \a actions indicate which types of drag and drop operation can
be performed, and the drag data is stored as MIME-encoded data in \a data.
The states of the mouse buttons and keyboard modifiers at the time of
the drop are specified by \a buttons and \a modifiers.
*/ // ### pos is in which coordinate system?
QDropEvent::QDropEvent(const QPoint& pos, Qt::DropActions actions, const QMimeData *data,
Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Type type)
: QEvent(type), p(pos), mouseState(buttons),
modState(modifiers), act(actions),
mdata(data)
{
default_action = QDragManager::self()->defaultAction(act, modifiers);
drop_action = default_action;
ignore();
}
/*! \internal */
QDropEvent::~QDropEvent()
{
}
/*!
\compat
Returns a byte array containing the drag's data, in \a format.
data() normally needs to get the data from the drag source, which
is potentially very slow, so it's advisable to call this function
only if you're sure that you will need the data in that
particular \a format.
The resulting data will have a size of 0 if the format was not
available.
\sa format() QByteArray::size()
*/
QByteArray QDropEvent::encodedData(const char *format) const
{
return mdata->data(QLatin1String(format));
}
/*!
\compat
Returns a string describing one of the available data types for
this drag. Common examples are "text/plain" and "image/gif".
If \a n is less than zero or greater than the number of available
data types, format() returns 0.
This function is provided mainly for debugging. Most drop targets
will use provides().
\sa data() provides()
*/
const char* QDropEvent::format(int n) const
{
if (fmts.isEmpty()) {
QStringList formats = mdata->formats();
for (int i = 0; i < formats.size(); ++i)
fmts.append(formats.at(i).toLatin1());
}
if (n < 0 || n >= fmts.size())
return 0;
return fmts.at(n).constData();
}
/*!
\compat
Returns true if this event provides format \a mimeType; otherwise
returns false.
\sa data()
*/
bool QDropEvent::provides(const char *mimeType) const
{
return mdata->formats().contains(QLatin1String(mimeType));
}
/*!
If the source of the drag operation is a widget in this
application, this function returns that source; otherwise it
returns 0. The source of the operation is the first parameter to
the QDrag object used instantiate the drag.
This is useful if your widget needs special behavior when dragging
to itself.
\sa QDrag::QDrag()
*/
QWidget* QDropEvent::source() const
{
QDragManager *manager = QDragManager::self();
return manager ? manager->source() : 0;
}
void QDropEvent::setDropAction(Qt::DropAction action)
{
if (!(action & act) && action != Qt::IgnoreAction)
action = default_action;
drop_action = action;
}
/*!
\fn const QPoint& QDropEvent::pos() const
Returns the position where the drop was made.
*/
/*!
\fn Qt::MouseButtons QDropEvent::mouseButtons() const
Returns the mouse buttons that are pressed..
*/
/*!
\fn Qt::KeyboardModifiers QDropEvent::keyboardModifiers() const
Returns the modifier keys that are pressed.
*/
/*!
\fn void QDropEvent::accept()
\internal
*/
/*!
\fn void QDropEvent::accept(bool accept)
Call setAccepted(\a accept) instead.
*/
/*!
\fn void QDropEvent::acceptAction(bool accept = true)
Call this to indicate that the action described by action() is
accepted (i.e. if \a accept is true, which is the default), not merely
the default copy action. If you call acceptAction(true), there is
no need to also call accept(true).
*/
/*!
\enum QDropEvent::Action
\compat
When a drag and drop action is completed, the target is expected
to perform an action on the data provided by the source. This
will be one of the following:
\value Copy The default action. The source simply uses the data
provided in the operation.
\value Link The source should somehow create a link to the
location specified by the data.
\value Move The source should somehow move the object from the
location specified by the data to a new location.
\value Private The target has special knowledge of the MIME type,
which the source should respond to in a similar way to
a Copy.
\value UserAction The source and target can co-operate using
special actions. This feature is not currently
supported.
The Link and Move actions only makes sense if the data is a
reference, for example, text/uri-list file lists (see QUriDrag).
*/
/*!
\fn void QDropEvent::setDropAction(Qt::DropAction action)
Sets the \a action to be performed on the data by the target.
Use this to override the \l{proposedAction()}{proposed action}
with one of the \l{possibleActions()}{possible actions}.
If you set a drop action that is not one of the possible actions, the
drag and drop operation will default to a copy operation.
Once you have supplied a replacement drop action, call accept()
instead of acceptProposedAction().
\sa dropAction()
*/
/*!
\fn Qt::DropAction QDropEvent::dropAction() const
Returns the action to be performed on the data by the target. This may be
different from the action supplied in proposedAction() if you have called
setDropAction() to explicitly choose a drop action.
\sa setDropAction()
*/
/*!
\fn Qt::DropActions QDropEvent::possibleActions() const
Returns an OR-combination of possible drop actions.
\sa dropAction()
*/
/*!
\fn Qt::DropAction QDropEvent::proposedAction() const
Returns the proposed drop action.
\sa dropAction()
*/
/*!
\fn void QDropEvent::acceptProposedAction()
Sets the drop action to be the proposed action.
\sa setDropAction(), proposedAction(), {QEvent::accept()}{accept()}
*/
#ifdef QT3_SUPPORT
/*!
Use dropAction() instead.
The table below shows the correspondance between the return type
of action() and the return type of dropAction().
\table
\header \i Old enum value \i New enum value
\row \i QDropEvent::Copy \i Qt::CopyAction
\row \i QDropEvent::Move \i Qt::MoveAction
\row \i QDropEvent::Link \i Qt::LinkAction
\row \i other \i Qt::CopyAction
\endtable
*/
QT3_SUPPORT QDropEvent::Action QDropEvent::action() const
{
switch(drop_action) {
case Qt::CopyAction:
return Copy;
case Qt::MoveAction:
return Move;
case Qt::LinkAction:
return Link;
default:
return Copy;
}
}
#endif
/*!
\fn void QDropEvent::setPoint(const QPoint &point)
\compat
Sets the drop to happen at the given \a point. You do not normally
need to use this as it will be set internally before your widget
receives the drop event.
*/ // ### here too - what coordinate system?
/*!
\class QDragEnterEvent
\brief The QDragEnterEvent class provides an event which is sent
to a widget when a drag and drop action enters it.
\ingroup events
\ingroup draganddrop
A widget must accept this event in order to receive the \l
{QDragMoveEvent}{drag move events} that are sent while the drag
and drop action is in progress. The drag enter event is always
immediately followed by a drag move event.
QDragEnterEvent inherits most of its functionality from
QDragMoveEvent, which in turn inherits most of its functionality
from QDropEvent.
\sa QDragLeaveEvent, QDragMoveEvent, QDropEvent
*/
/*!
Constructs a QDragEnterEvent that represents a drag entering a
widget at the given \a point with mouse and keyboard states specified by
\a buttons and \a modifiers.
The drag data is passed as MIME-encoded information in \a data, and the
specified \a actions describe the possible types of drag and drop
operation that can be performed.
\warning Do not create a QDragEnterEvent yourself since these
objects rely on Qt's internal state.
*/
QDragEnterEvent::QDragEnterEvent(const QPoint& point, Qt::DropActions actions, const QMimeData *data,
Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
: QDragMoveEvent(point, actions, data, buttons, modifiers, DragEnter)
{}
/*! \internal
*/
QDragEnterEvent::~QDragEnterEvent()
{
}
/*!
Constructs a drag response event containing the \a accepted value,
indicating whether the drag and drop operation was accepted by the
recipient.
*/
QDragResponseEvent::QDragResponseEvent(bool accepted)
: QEvent(DragResponse), a(accepted)
{}
/*! \internal
*/
QDragResponseEvent::~QDragResponseEvent()
{
}
/*!
\class QDragMoveEvent
\brief The QDragMoveEvent class provides an event which is sent while a drag and drop action is in progress.
\ingroup events
\ingroup draganddrop
A widget will receive drag move events repeatedly while the drag
is within its boundaries, if it accepts
\l{QWidget::setAcceptDrops()}{drop events} and \l
{QWidget::dragEnterEvent()}{enter events}. The widget should
examine the event to see what kind of data it
\l{QDragMoveEvent::provides()}{provides}, and call the accept()
function to accept the drop if appropriate.
The rectangle supplied by the answerRect() function can be used to restrict
drops to certain parts of the widget. For example, we can check whether the
rectangle intersects with the geometry of a certain child widget and only
call \l{QDropEvent::acceptProposedAction()}{acceptProposedAction()} if that
is the case.
Note that this class inherits most of its functionality from
QDropEvent.
\sa QDragEnterEvent, QDragLeaveEvent, QDropEvent
*/
/*!
\class QDragLeaveEvent
\brief The QDragLeaveEvent class provides an event that is sent to a widget when a drag and drop action leaves it.
\ingroup events
\ingroup draganddrop
This event is always preceded by a QDragEnterEvent and a series
of \l{QDragMoveEvent}s. It is not sent if a QDropEvent is sent
instead.
\sa QDragEnterEvent, QDragMoveEvent, QDropEvent
*/
/*!
Constructs a QDragLeaveEvent.
\warning Do not create a QDragLeaveEvent yourself since these
objects rely on Qt's internal state.
*/
QDragLeaveEvent::QDragLeaveEvent()
: QEvent(DragLeave)
{}
/*! \internal
*/
QDragLeaveEvent::~QDragLeaveEvent()
{
}
#endif // QT_NO_DRAGANDDROP
/*!
\class QHelpEvent
\brief The QHelpEvent class provides an event that is used to request helpful information
about a particular point in a widget.
\ingroup events
\ingroup helpsystem
This event can be intercepted in applications to provide tooltips
or "What's This?" help for custom widgets. The type() can be
either QEvent::ToolTip or QEvent::WhatsThis.
\sa QToolTip, QWhatsThis, QStatusTipEvent, QWhatsThisClickedEvent
*/
/*!
Constructs a help event with the given \a type corresponding to the
widget-relative position specified by \a pos and the global position
specified by \a globalPos.
\a type must be either QEvent::ToolTip or QEvent::WhatsThis.
\sa pos(), globalPos()
*/
QHelpEvent::QHelpEvent(Type type, const QPoint &pos, const QPoint &globalPos)
: QEvent(type), p(pos), gp(globalPos)
{}
/*!
\fn int QHelpEvent::x() const
Same as pos().x().
\sa y(), pos(), globalPos()
*/
/*!
\fn int QHelpEvent::y() const
Same as pos().y().
\sa x(), pos(), globalPos()
*/
/*!
\fn int QHelpEvent::globalX() const
Same as globalPos().x().
\sa x(), globalY(), globalPos()
*/
/*!
\fn int QHelpEvent::globalY() const
Same as globalPos().y().
\sa y(), globalX(), globalPos()
*/
/*!
\fn const QPoint &QHelpEvent::pos() const
Returns the mouse cursor position when the event was generated,
relative to the widget to which the event is dispatched.
\sa globalPos(), x(), y()
*/
/*!
\fn const QPoint &QHelpEvent::globalPos() const
Returns the mouse cursor position when the event was generated
in global coordinates.
\sa pos(), globalX(), globalY()
*/
/*! \internal
*/
QHelpEvent::~QHelpEvent()
{
}
#ifndef QT_NO_STATUSTIP
/*!
\class QStatusTipEvent
\brief The QStatusTipEvent class provides an event that is used to show messages in a status bar.
\ingroup events
\ingroup helpsystem
Status tips can be set on a widget using the
QWidget::setStatusTip() function. They are shown in the status
bar when the mouse cursor enters the widget. For example:
\table 100%
\row
\o
\snippet doc/src/snippets/qstatustipevent/main.cpp 1
\dots
\snippet doc/src/snippets/qstatustipevent/main.cpp 3
\o
\image qstatustipevent-widget.png Widget with status tip.
\endtable
Status tips can also be set on actions using the
QAction::setStatusTip() function:
\table 100%
\row
\o
\snippet doc/src/snippets/qstatustipevent/main.cpp 0
\snippet doc/src/snippets/qstatustipevent/main.cpp 2
\dots
\snippet doc/src/snippets/qstatustipevent/main.cpp 3
\o
\image qstatustipevent-action.png Action with status tip.
\endtable
Finally, status tips are supported for the item view classes
through the Qt::StatusTipRole enum value.
\sa QStatusBar, QHelpEvent, QWhatsThisClickedEvent
*/
/*!
Constructs a status tip event with the text specified by \a tip.
\sa tip()
*/
QStatusTipEvent::QStatusTipEvent(const QString &tip)
: QEvent(StatusTip), s(tip)
{}
/*! \internal
*/
QStatusTipEvent::~QStatusTipEvent()
{
}
/*!
\fn QString QStatusTipEvent::tip() const
Returns the message to show in the status bar.
\sa QStatusBar::showMessage()
*/
#endif // QT_NO_STATUSTIP
#ifndef QT_NO_WHATSTHIS
/*!
\class QWhatsThisClickedEvent
\brief The QWhatsThisClickedEvent class provides an event that
can be used to handle hyperlinks in a "What's This?" text.
\ingroup events
\ingroup helpsystem
\sa QWhatsThis, QHelpEvent, QStatusTipEvent
*/
/*!
Constructs an event containing a URL specified by \a href when a link
is clicked in a "What's This?" message.
\sa href()
*/
QWhatsThisClickedEvent::QWhatsThisClickedEvent(const QString &href)
: QEvent(WhatsThisClicked), s(href)
{}
/*! \internal
*/
QWhatsThisClickedEvent::~QWhatsThisClickedEvent()
{
}
/*!
\fn QString QWhatsThisClickedEvent::href() const
Returns the URL that was clicked by the user in the "What's
This?" text.
*/
#endif // QT_NO_WHATSTHIS
#ifndef QT_NO_ACTION
/*!
\class QActionEvent
\brief The QActionEvent class provides an event that is generated
when a QAction is added, removed, or changed.
\ingroup events
Actions can be added to widgets using QWidget::addAction(). This
generates an \l ActionAdded event, which you can handle to provide
custom behavior. For example, QToolBar reimplements
QWidget::actionEvent() to create \l{QToolButton}s for the
actions.
\sa QAction, QWidget::addAction(), QWidget::removeAction(), QWidget::actions()
*/
/*!
Constructs an action event. The \a type can be \l ActionChanged,
\l ActionAdded, or \l ActionRemoved.
\a action is the action that is changed, added, or removed. If \a
type is ActionAdded, the action is to be inserted before the
action \a before. If \a before is 0, the action is appended.
*/
QActionEvent::QActionEvent(int type, QAction *action, QAction *before)
: QEvent(static_cast<QEvent::Type>(type)), act(action), bef(before)
{}
/*! \internal
*/
QActionEvent::~QActionEvent()
{
}
/*!
\fn QAction *QActionEvent::action() const
Returns the action that is changed, added, or removed.
\sa before()
*/
/*!
\fn QAction *QActionEvent::before() const
If type() is \l ActionAdded, returns the action that should
appear before action(). If this function returns 0, the action
should be appended to already existing actions on the same
widget.
\sa action(), QWidget::actions()
*/
#endif // QT_NO_ACTION
/*!
\class QHideEvent
\brief The QHideEvent class provides an event which is sent after a widget is hidden.
\ingroup events
This event is sent just before QWidget::hide() returns, and also
when a top-level window has been hidden (iconified) by the user.
If spontaneous() is true, the event originated outside the
application. In this case, the user hid the window using the
window manager controls, either by iconifying the window or by
switching to another virtual desktop where the window isn't
visible. The window will become hidden but not withdrawn. If the
window was iconified, QWidget::isMinimized() returns true.
\sa QShowEvent
*/
/*!
Constructs a QHideEvent.
*/
QHideEvent::QHideEvent()
: QEvent(Hide)
{}
/*! \internal
*/
QHideEvent::~QHideEvent()
{
}
/*!
\class QShowEvent
\brief The QShowEvent class provides an event that is sent when a widget is shown.
\ingroup events
There are two kinds of show events: show events caused by the
window system (spontaneous), and internal show events. Spontaneous (QEvent::spontaneous())
show events are sent just after the window system shows the
window; they are also sent when a top-level window is redisplayed
after being iconified. Internal show events are delivered just
before the widget becomes visible.
\sa QHideEvent
*/
/*!
Constructs a QShowEvent.
*/
QShowEvent::QShowEvent()
: QEvent(Show)
{}
/*! \internal
*/
QShowEvent::~QShowEvent()
{
}
/*!
\fn QByteArray QDropEvent::data(const char* f) const
\obsolete
The encoded data is in \a f.
Use QDropEvent::encodedData().
*/
/*!
\class QFileOpenEvent
\brief The QFileOpenEvent class provides an event that will be
sent when there is a request to open a file or a URL.
\ingroup events
File open events will be sent to the QApplication::instance()
when the operating system requests that a file or URL should be opened.
This is a high-level event that can be caused by different user actions
depending on the user's desktop environment; for example, double
clicking on an file icon in the Finder on Mac OS X.
This event is only used to notify the application of a request.
It may be safely ignored.
\note This class is currently supported for Mac OS X only.
*/
/*!
\internal
Constructs a file open event for the given \a file.
*/
QFileOpenEvent::QFileOpenEvent(const QString &file)
: QEvent(FileOpen), f(file)
{
d = reinterpret_cast<QEventPrivate *>(new QFileOpenEventPrivate(QUrl::fromLocalFile(file)));
}
/*!
\internal
Constructs a file open event for the given \a url.
*/
QFileOpenEvent::QFileOpenEvent(const QUrl &url)
: QEvent(FileOpen)
{
d = reinterpret_cast<QEventPrivate *>(new QFileOpenEventPrivate(url));
f = url.toLocalFile();
}
/*! \internal
*/
QFileOpenEvent::~QFileOpenEvent()
{
delete reinterpret_cast<QFileOpenEventPrivate *>(d);
}
/*!
\fn QString QFileOpenEvent::file() const
Returns the file that is being opened.
*/
/*!
\fn QUrl QFileOpenEvent::url() const
Returns the url that is being opened.
\since 4.6
*/
QUrl QFileOpenEvent::url() const
{
return reinterpret_cast<const QFileOpenEventPrivate *>(d)->url;
}
#ifndef QT_NO_TOOLBAR
/*!
\internal
\class QToolBarChangeEvent
\brief The QToolBarChangeEvent class provides an event that is
sent whenever a the toolbar button is clicked on Mac OS X.
\ingroup events
The QToolBarChangeEvent is sent when the toolbar button is clicked. On Mac
OS X, this is the long oblong button on the right side of the window
title bar. The default implementation is to toggle the appearance (hidden or
shown) of the associated toolbars for the window.
*/
/*!
\internal
Construct a QToolBarChangeEvent given the current button state in \a state.
*/
QToolBarChangeEvent::QToolBarChangeEvent(bool t)
: QEvent(ToolBarChange), tog(t)
{}
/*! \internal
*/
QToolBarChangeEvent::~QToolBarChangeEvent()
{
}
/*!
\fn bool QToolBarChangeEvent::toggle() const
\internal
*/
/*
\fn Qt::ButtonState QToolBarChangeEvent::state() const
Returns the keyboard modifier flags at the time of the event.
The returned value is a selection of the following values,
combined using the OR operator:
Qt::ShiftButton, Qt::ControlButton, Qt::MetaButton, and Qt::AltButton.
*/
#endif // QT_NO_TOOLBAR
#ifndef QT_NO_SHORTCUT
/*!
Constructs a shortcut event for the given \a key press,
associated with the QShortcut ID \a id.
\a ambiguous specifies whether there is more than one QShortcut
for the same key sequence.
*/
QShortcutEvent::QShortcutEvent(const QKeySequence &key, int id, bool ambiguous)
: QEvent(Shortcut), sequence(key), ambig(ambiguous), sid(id)
{
}
/*!
Destroys the event object.
*/
QShortcutEvent::~QShortcutEvent()
{
}
#endif // QT_NO_SHORTCUT
#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug dbg, const QEvent *e) {
#ifndef Q_BROKEN_DEBUG_STREAM
// More useful event output could be added here
if (!e)
return dbg << "QEvent(this = 0x0)";
const char *n = 0;
switch (e->type()) {
case QEvent::Timer:
n = "Timer";
break;
case QEvent::MouseButtonPress:
case QEvent::MouseMove:
case QEvent::MouseButtonRelease:
case QEvent::MouseButtonDblClick:
{
const QMouseEvent *me = static_cast<const QMouseEvent*>(e);
switch(me->type()) {
case QEvent::MouseButtonPress:
n = "MouseButtonPress";
break;
case QEvent::MouseMove:
n = "MouseMove";
break;
case QEvent::MouseButtonRelease:
n = "MouseButtonRelease";
break;
case QEvent::MouseButtonDblClick:
default:
n = "MouseButtonDblClick";
break;
}
dbg.nospace() << "QMouseEvent(" << n
<< ", " << me->button()
<< ", " << hex << (int)me->buttons()
<< ", " << hex << (int)me->modifiers()
<< ')';
}
return dbg.space();
#ifndef QT_NO_TOOLTIP
case QEvent::ToolTip:
n = "ToolTip";
break;
#endif
case QEvent::WindowActivate:
n = "WindowActivate";
break;
case QEvent::WindowDeactivate:
n = "WindowDeactivate";
break;
case QEvent::ActivationChange:
n = "ActivationChange";
break;
#ifndef QT_NO_WHEELEVENT
case QEvent::Wheel:
dbg.nospace() << "QWheelEvent(" << static_cast<const QWheelEvent *>(e)->delta()
<< ')';
return dbg.space();
#endif
case QEvent::KeyPress:
case QEvent::KeyRelease:
case QEvent::ShortcutOverride:
{
const QKeyEvent *ke = static_cast<const QKeyEvent*>(e);
switch(ke->type()) {
case QEvent::ShortcutOverride:
n = "ShortcutOverride";
break;
case QEvent::KeyRelease:
n = "KeyRelease";
break;
case QEvent::KeyPress:
default:
n = "KeyPress";
break;
}
dbg.nospace() << "QKeyEvent(" << n
<< ", " << hex << ke->key()
<< ", " << hex << (int)ke->modifiers()
<< ", \"" << ke->text()
<< "\", " << ke->isAutoRepeat()
<< ", " << ke->count()
<< ')';
}
return dbg.space();
case QEvent::FocusIn:
n = "FocusIn";
break;
case QEvent::FocusOut:
n = "FocusOut";
break;
case QEvent::Enter:
n = "Enter";
break;
case QEvent::Leave:
n = "Leave";
break;
case QEvent::PaletteChange:
n = "PaletteChange";
break;
case QEvent::PolishRequest:
n = "PolishRequest";
break;
case QEvent::Polish:
n = "Polish";
break;
case QEvent::UpdateRequest:
n = "UpdateRequest";
break;
case QEvent::Paint:
n = "Paint";
break;
case QEvent::Move:
n = "Move";
break;
case QEvent::Resize:
n = "Resize";
break;
case QEvent::Create:
n = "Create";
break;
case QEvent::Destroy:
n = "Destroy";
break;
case QEvent::Close:
n = "Close";
break;
case QEvent::Quit:
n = "Quit";
break;
case QEvent::FileOpen:
n = "FileOpen";
break;
case QEvent::Show:
n = "Show";
break;
case QEvent::ShowToParent:
n = "ShowToParent";
break;
case QEvent::Hide:
n = "Hide";
break;
case QEvent::HideToParent:
n = "HideToParent";
break;
case QEvent::None:
n = "None";
break;
case QEvent::ParentChange:
n = "ParentChange";
break;
case QEvent::ParentAboutToChange:
n = "ParentAboutToChange";
break;
case QEvent::HoverEnter:
n = "HoverEnter";
break;
case QEvent::HoverMove:
n = "HoverMove";
break;
case QEvent::HoverLeave:
n = "HoverLeave";
break;
case QEvent::ZOrderChange:
n = "ZOrderChange";
break;
case QEvent::StyleChange:
n = "StyleChange";
break;
case QEvent::DragEnter:
n = "DragEnter";
break;
case QEvent::DragMove:
n = "DragMove";
break;
case QEvent::DragLeave:
n = "DragLeave";
break;
case QEvent::Drop:
n = "Drop";
break;
case QEvent::GraphicsSceneMouseMove:
n = "GraphicsSceneMouseMove";
break;
case QEvent::GraphicsSceneMousePress:
n = "GraphicsSceneMousePress";
break;
case QEvent::GraphicsSceneMouseRelease:
n = "GraphicsSceneMouseRelease";
break;
case QEvent::GraphicsSceneMouseDoubleClick:
n = "GraphicsSceneMouseDoubleClick";
break;
case QEvent::GraphicsSceneContextMenu:
n = "GraphicsSceneContextMenu";
break;
case QEvent::GraphicsSceneHoverEnter:
n = "GraphicsSceneHoverEnter";
break;
case QEvent::GraphicsSceneHoverMove:
n = "GraphicsSceneHoverMove";
break;
case QEvent::GraphicsSceneHoverLeave:
n = "GraphicsSceneHoverLeave";
break;
case QEvent::GraphicsSceneHelp:
n = "GraphicsSceneHelp";
break;
case QEvent::GraphicsSceneDragEnter:
n = "GraphicsSceneDragEnter";
break;
case QEvent::GraphicsSceneDragMove:
n = "GraphicsSceneDragMove";
break;
case QEvent::GraphicsSceneDragLeave:
n = "GraphicsSceneDragLeave";
break;
case QEvent::GraphicsSceneDrop:
n = "GraphicsSceneDrop";
break;
case QEvent::GraphicsSceneWheel:
n = "GraphicsSceneWheel";
break;
case QEvent::GraphicsSceneResize:
n = "GraphicsSceneResize";
break;
case QEvent::GraphicsSceneMove:
n = "GraphicsSceneMove";
break;
case QEvent::CursorChange:
n = "CursorChange";
break;
case QEvent::ToolTipChange:
n = "ToolTipChange";
break;
case QEvent::StatusTip:
n = "StatusTip";
break;
case QEvent::WhatsThis:
n = "WhatsThis";
break;
case QEvent::FontChange:
n = "FontChange";
break;
case QEvent::Style:
n = "Style";
break;
case QEvent::KeyboardLayoutChange:
n = "KeyboardLayoutChange";
break;
case QEvent::DynamicPropertyChange:
n = "DynamicPropertyChange";
break;
case QEvent::GrabMouse:
n = "GrabMouse";
break;
case QEvent::UngrabMouse:
n = "UngrabMouse";
break;
case QEvent::GrabKeyboard:
n = "GrabKeyboard";
break;
case QEvent::UngrabKeyboard:
n = "UngrabKeyboard";
break;
#ifdef QT3_SUPPORT
case QEvent::ChildInsertedRequest:
n = "ChildInsertedRequest";
break;
case QEvent::ChildInserted: n = "ChildInserted";
#endif
case QEvent::ChildAdded: n = n ? n : "ChildAdded";
case QEvent::ChildPolished: n = n ? n : "ChildPolished";
case QEvent::ChildRemoved: n = n ? n : "ChildRemoved";
dbg.nospace() << "QChildEvent(" << n << ", " << (static_cast<const QChildEvent*>(e))->child();
return dbg.space();
#ifndef QT_NO_GESTURES
case QEvent::Gesture:
n = "Gesture";
break;
#endif
default:
dbg.nospace() << "QEvent(" << (const void *)e << ", type = " << e->type() << ')';
return dbg.space();
}
dbg.nospace() << 'Q' << n << "Event(" << (const void *)e << ')';
return dbg.space();
#else
qWarning("This compiler doesn't support streaming QEvent to QDebug");
return dbg;
Q_UNUSED(e);
#endif
}
#endif
#ifndef QT_NO_CLIPBOARD
/*!
\class QClipboardEvent
\ingroup events
\internal
\brief The QClipboardEvent class provides the parameters used in a clipboard event.
This class is for internal use only, and exists to aid the clipboard on various
platforms to get all the information it needs. Use QEvent::Clipboard instead.
\sa QClipboard
*/
QClipboardEvent::QClipboardEvent(QEventPrivate *data)
: QEvent(QEvent::Clipboard)
{
d = data;
}
QClipboardEvent::~QClipboardEvent()
{
}
#endif // QT_NO_CLIPBOARD
/*!
\class QShortcutEvent
\brief The QShortcutEvent class provides an event which is generated when
the user presses a key combination.
\ingroup events
Normally you don't need to use this class directly; QShortcut
provides a higher-level interface to handle shortcut keys.
\sa QShortcut
*/
/*!
\fn const QKeySequence &QShortcutEvent::key() const
Returns the key sequence that triggered the event.
*/
// ### Qt 5: remove
/*!
\fn const QKeySequence &QShortcutEvent::key()
\internal
*/
/*!
\fn int QShortcutEvent::shortcutId() const
Returns the ID of the QShortcut object for which this event was
generated.
\sa QShortcut::id()
*/
// ### Qt 5: remove
/*!
\fn int QShortcutEvent::shortcutId()
\overload
\internal
*/
/*!
\fn bool QShortcutEvent::isAmbiguous() const
Returns true if the key sequence that triggered the event is
ambiguous.
\sa QShortcut::activatedAmbiguously()
*/
// ### Qt 5: remove
/*!
\fn bool QShortcutEvent::isAmbiguous()
\internal
*/
/*!
\class QWindowStateChangeEvent
\ingroup events
\brief The QWindowStateChangeEvent class provides the window state before a
window state change.
*/
/*! \fn Qt::WindowStates QWindowStateChangeEvent::oldState() const
Returns the state of the window before the change.
*/
/*! \internal
*/
QWindowStateChangeEvent::QWindowStateChangeEvent(Qt::WindowStates s)
: QEvent(WindowStateChange), ostate(s)
{
}
/*! \internal
*/
QWindowStateChangeEvent::QWindowStateChangeEvent(Qt::WindowStates s, bool isOverride)
: QEvent(WindowStateChange), ostate(s)
{
if (isOverride)
d = (QEventPrivate*)(this);
}
/*! \internal
*/
bool QWindowStateChangeEvent::isOverride() const
{
return (d != 0);
}
/*! \internal
*/
QWindowStateChangeEvent::~QWindowStateChangeEvent()
{
}
#ifdef QT3_SUPPORT
/*!
\class QMenubarUpdatedEvent
\internal
Event sent by QMenuBar to tell Q3Workspace to update itself.
*/
/*! \internal
*/
QMenubarUpdatedEvent::QMenubarUpdatedEvent(QMenuBar * const menuBar)
:QEvent(QEvent::MenubarUpdated), m_menuBar(menuBar) {}
/*!
\fn QMenuBar *QMenubarUpdatedEvent::menuBar()
\internal
*/
/*!
\fn bool operator==(QKeyEvent *e, QKeySequence::StandardKey key)
\relates QKeyEvent
Returns true if \a key is currently bound to the key combination
specified by \a e.
Equivalent to \c {e->matches(key)}.
*/
/*!
\fn bool operator==(QKeySequence::StandardKey key, QKeyEvent *e)
\relates QKeyEvent
Returns true if \a key is currently bound to the key combination
specified by \a e.
Equivalent to \c {e->matches(key)}.
*/
/*!
\internal
\class QKeyEventEx
\ingroup events
\brief The QKeyEventEx class provides more extended information about a keyevent.
This class is for internal use only, and exists to aid the shortcut system on
various platforms to get all the information it needs.
*/
#endif
/*!
\class QTouchEvent
\brief The QTouchEvent class contains parameters that describe a touch event.
\since 4.6
\ingroup events
\ingroup touch
\section1 Enabling Touch Events
Touch events occur when pressing, releasing, or moving one or more touch points on a touch
device (such as a touch-screen or track-pad). To receive touch events, widgets have to have the
Qt::WA_AcceptTouchEvents attribute set and graphics items need to have the
\l{QGraphicsItem::setAcceptTouchEvents()}{acceptTouchEvents} attribute set to true.
When using QAbstractScrollArea based widgets, you should enable the Qt::WA_AcceptTouchEvents
attribute on the scroll area's \l{QAbstractScrollArea::viewport()}{viewport}.
Similarly to QMouseEvent, Qt automatically grabs each touch point on the first press inside a
widget, and the widget will receive all updates for the touch point until it is released.
Note that it is possible for a widget to receive events for numerous touch points, and that
multiple widgets may be receiving touch events at the same time.
\section1 Event Handling
All touch events are of type QEvent::TouchBegin, QEvent::TouchUpdate, or QEvent::TouchEnd.
Reimplement QWidget::event() or QAbstractScrollArea::viewportEvent() for widgets and
QGraphicsItem::sceneEvent() for items in a graphics view to receive touch events.
The QEvent::TouchUpdate and QEvent::TouchEnd events are sent to the widget or item that
accepted the QEvent::TouchBegin event. If the QEvent::TouchBegin event is not accepted and not
filtered by an event filter, then no further touch events are sent until the next
QEvent::TouchBegin.
The touchPoints() function returns a list of all touch points contained in the event.
Information about each touch point can be retrieved using the QTouchEvent::TouchPoint class.
The Qt::TouchPointState enum describes the different states that a touch point may have.
\section1 Event Delivery and Propagation
By default, QWidget::event() translates the first non-primary touch point in a QTouchEvent into
a QMouseEvent. This makes it possible to enable touch events on existing widgets that do not
normally handle QTouchEvent. See below for information on some special considerations needed
when doing this.
QEvent::TouchBegin is the first touch event sent to a widget. The QEvent::TouchBegin event
contains a special accept flag that indicates whether the receiver wants the event. By default,
the event is accepted. You should call ignore() if the touch event is not handled by your
widget. The QEvent::TouchBegin event is propagated up the parent widget chain until a widget
accepts it with accept(), or an event filter consumes it. For QGraphicsItems, the
QEvent::TouchBegin event is propagated to items under the mouse (similar to mouse event
propagation for QGraphicsItems).
\section1 Touch Point Grouping
As mentioned above, it is possible that several widgets can be receiving QTouchEvents at the
same time. However, Qt makes sure to never send duplicate QEvent::TouchBegin events to the same
widget, which could theoretically happen during propagation if, for example, the user touched 2
separate widgets in a QGroupBox and both widgets ignored the QEvent::TouchBegin event.
To avoid this, Qt will group new touch points together using the following rules:
\list
\i When the first touch point is detected, the destination widget is determined firstly by the
location on screen and secondly by the propagation rules.
\i When additional touch points are detected, Qt first looks to see if there are any active
touch points on any ancestor or descendent of the widget under the new touch point. If there
are, the new touch point is grouped with the first, and the new touch point will be sent in a
single QTouchEvent to the widget that handled the first touch point. (The widget under the new
touch point will not receive an event).
\endlist
This makes it possible for sibling widgets to handle touch events independently while making
sure that the sequence of QTouchEvents is always correct.
\section1 Mouse Events and the Primary Touch Point
QTouchEvent delivery is independent from that of QMouseEvent. On some windowing systems, mouse
events are also sent for the \l{QTouchEvent::TouchPoint::isPrimary()}{primary touch point}.
This means it is possible for your widget to receive both QTouchEvent and QMouseEvent for the
same user interaction point. You can use the QTouchEvent::TouchPoint::isPrimary() function to
identify the primary touch point.
Note that on some systems, it is possible to receive touch events without a primary touch
point. All this means is that there will be no mouse event generated for the touch points in
the QTouchEvent.
\section1 Caveats
\list
\i As mentioned above, enabling touch events means multiple widgets can be receiving touch
events simultaneously. Combined with the default QWidget::event() handling for QTouchEvents,
this gives you great flexibility in designing touch user interfaces. Be aware of the
implications. For example, it is possible that the user is moving a QSlider with one finger and
pressing a QPushButton with another. The signals emitted by these widgets will be
interleaved.
\i Recursion into the event loop using one of the exec() methods (e.g., QDialog::exec() or
QMenu::exec()) in a QTouchEvent event handler is not supported. Since there are multiple event
recipients, recursion may cause problems, including but not limited to lost events
and unexpected infinite recursion.
\i QTouchEvents are not affected by a \l{QWidget::grabMouse()}{mouse grab} or an
\l{QApplication::activePopupWidget()}{active pop-up widget}. The behavior of QTouchEvents is
undefined when opening a pop-up or grabbing the mouse while there are more than one active touch
points.
\endlist
\sa QTouchEvent::TouchPoint, Qt::TouchPointState, Qt::WA_AcceptTouchEvents,
QGraphicsItem::acceptTouchEvents()
*/
/*! \enum Qt::TouchPointState
\since 4.6
This enum represents the state of a touch point at the time the
QTouchEvent occurred.
\value TouchPointPressed The touch point is now pressed.
\value TouchPointMoved The touch point moved.
\value TouchPointStationary The touch point did not move.
\value TouchPointReleased The touch point was released.
\omitvalue TouchPointStateMask
\omitvalue TouchPointPrimary
*/
/*! \enum QTouchEvent::DeviceType
This enum represents the type of device that generated a QTouchEvent.
\value TouchScreen In this type of device, the touch surface and display are integrated. This
means the surface and display typically have the same size, such that there
is a direct relationship between the touch points' physical positions and the
coordinate reported by QTouchEvent::TouchPoint. As a result, Qt allows the
user to interact directly with multiple QWidgets and QGraphicsItems at the
same time.
\value TouchPad In this type of device, the touch surface is separate from the display. There
is not a direct relationship between the physical touch location and the
on-screen coordinates. Instead, they are calculated relative to the current
mouse position, and the user must use the touch-pad to move this reference
point. Unlike touch-screens, Qt allows users to only interact with a single
QWidget or QGraphicsItem at a time.
*/
/*!
Constructs a QTouchEvent with the given \a eventType, \a deviceType, and \a touchPoints.
The \a touchPointStates and \a modifiers are the current touch point states and keyboard
modifiers at the time of the event.
*/
QTouchEvent::QTouchEvent(QEvent::Type eventType,
QTouchEvent::DeviceType deviceType,
Qt::KeyboardModifiers modifiers,
Qt::TouchPointStates touchPointStates,
const QList<QTouchEvent::TouchPoint> &touchPoints)
: QInputEvent(eventType, modifiers),
_widget(0),
_deviceType(deviceType),
_touchPointStates(touchPointStates),
_touchPoints(touchPoints)
{ }
/*!
Destroys the QTouchEvent.
*/
QTouchEvent::~QTouchEvent()
{ }
/*! \fn QWidget *QTouchEvent::widget() const
Returns the widget on which the event occurred.
*/
/*! \fn Qt::TouchPointStates QTouchEvent::touchPointStates() const
Returns a bitwise OR of all the touch point states for this event.
*/
/*! \fn const QList<QTouchEvent::TouchPoint> &QTouchEvent::touchPoints() const
Returns the list of touch points contained in the touch event.
*/
/*! \fn QTouchEvent::DeviceType QTouchEvent::deviceType() const
Returns the touch device Type, which is of type \l {QTouchEvent::DeviceType} {DeviceType}.
*/
/*! \fn void QTouchEvent::setWidget(QWidget *widget)
\internal
Sets the widget for this event.
*/
/*! \fn void QTouchEvent::setTouchPointStates(Qt::TouchPointStates touchPointStates)
\internal
Sets a bitwise OR of all the touch point states for this event.
*/
/*! \fn void QTouchEvent::setTouchPoints(const QList<QTouchEvent::TouchPoint> &touchPoints)
\internal
Sets the list of touch points for this event.
*/
/*! \fn void QTouchEvent::setDeviceType(DeviceType deviceType)
\internal
Sets the device type to \a deviceType, which is of type \l {QTouchEvent::DeviceType}
{DeviceType}.
*/
/*! \class QTouchEvent::TouchPoint
\brief The TouchPoint class provides information about a touch point in a QTouchEvent.
\since 4.6
*/
/*! \internal
Constructs a QTouchEvent::TouchPoint for use in a QTouchEvent.
*/
QTouchEvent::TouchPoint::TouchPoint(int id)
: d(new QTouchEventTouchPointPrivate(id))
{ }
/*! \internal
Constructs a copy of \a other.
*/
QTouchEvent::TouchPoint::TouchPoint(const QTouchEvent::TouchPoint &other)
: d(other.d)
{
d->ref.ref();
}
/*! \internal
Destroys the QTouchEvent::TouchPoint.
*/
QTouchEvent::TouchPoint::~TouchPoint()
{
if (!d->ref.deref())
delete d;
}
/*!
Returns the id number of this touch point.
Id numbers are globally sequential, starting at zero, meaning the
first touch point in the application has id 0, the second has id 1,
and so on.
*/
int QTouchEvent::TouchPoint::id() const
{
return d->id;
}
/*!
Returns the current state of this touch point.
*/
Qt::TouchPointState QTouchEvent::TouchPoint::state() const
{
return Qt::TouchPointState(int(d->state) & Qt::TouchPointStateMask);
}
/*!
Returns true if this touch point is the primary touch point. The primary touch point is the
point for which the windowing system generates mouse events.
*/
bool QTouchEvent::TouchPoint::isPrimary() const
{
return (d->state & Qt::TouchPointPrimary) != 0;
}
/*!
Returns the position of this touch point, relative to the widget
or QGraphicsItem that received the event.
\sa startPos(), lastPos(), screenPos(), scenePos(), normalizedPos()
*/
QPointF QTouchEvent::TouchPoint::pos() const
{
return d->rect.center();
}
/*!
Returns the scene position of this touch point.
The scene position is the position in QGraphicsScene coordinates
if the QTouchEvent is handled by a QGraphicsItem::touchEvent()
reimplementation, and identical to the screen position for
widgets.
\sa startScenePos(), lastScenePos(), pos()
*/
QPointF QTouchEvent::TouchPoint::scenePos() const
{
return d->sceneRect.center();
}
/*!
Returns the screen position of this touch point.
\sa startScreenPos(), lastScreenPos(), pos()
*/
QPointF QTouchEvent::TouchPoint::screenPos() const
{
return d->screenRect.center();
}
/*!
Returns the normalized position of this touch point.
The coordinates are normalized to the size of the touch device,
i.e. (0,0) is the top-left corner and (1,1) is the bottom-right corner.
\sa startNormalizedPos(), lastNormalizedPos(), pos()
*/
QPointF QTouchEvent::TouchPoint::normalizedPos() const
{
return d->normalizedPos;
}
/*!
Returns the starting position of this touch point, relative to the
widget or QGraphicsItem that received the event.
\sa pos(), lastPos()
*/
QPointF QTouchEvent::TouchPoint::startPos() const
{
return d->startPos;
}
/*!
Returns the starting scene position of this touch point.
The scene position is the position in QGraphicsScene coordinates
if the QTouchEvent is handled by a QGraphicsItem::touchEvent()
reimplementation, and identical to the screen position for
widgets.
\sa scenePos(), lastScenePos()
*/
QPointF QTouchEvent::TouchPoint::startScenePos() const
{
return d->startScenePos;
}
/*!
Returns the starting screen position of this touch point.
\sa screenPos(), lastScreenPos()
*/
QPointF QTouchEvent::TouchPoint::startScreenPos() const
{
return d->startScreenPos;
}
/*!
Returns the normalized starting position of this touch point.
The coordinates are normalized to the size of the touch device,
i.e. (0,0) is the top-left corner and (1,1) is the bottom-right corner.
\sa normalizedPos(), lastNormalizedPos()
*/
QPointF QTouchEvent::TouchPoint::startNormalizedPos() const
{
return d->startNormalizedPos;
}
/*!
Returns the position of this touch point from the previous touch
event, relative to the widget or QGraphicsItem that received the event.
\sa pos(), startPos()
*/
QPointF QTouchEvent::TouchPoint::lastPos() const
{
return d->lastPos;
}
/*!
Returns the scene position of this touch point from the previous
touch event.
The scene position is the position in QGraphicsScene coordinates
if the QTouchEvent is handled by a QGraphicsItem::touchEvent()
reimplementation, and identical to the screen position for
widgets.
\sa scenePos(), startScenePos()
*/
QPointF QTouchEvent::TouchPoint::lastScenePos() const
{
return d->lastScenePos;
}
/*!
Returns the screen position of this touch point from the previous
touch event.
\sa screenPos(), startScreenPos()
*/
QPointF QTouchEvent::TouchPoint::lastScreenPos() const
{
return d->lastScreenPos;
}
/*!
Returns the normalized position of this touch point from the
previous touch event.
The coordinates are normalized to the size of the touch device,
i.e. (0,0) is the top-left corner and (1,1) is the bottom-right corner.
\sa normalizedPos(), startNormalizedPos()
*/
QPointF QTouchEvent::TouchPoint::lastNormalizedPos() const
{
return d->lastNormalizedPos;
}
/*!
Returns the rect for this touch point, relative to the widget
or QGraphicsItem that received the event. The rect is centered
around the point returned by pos().
\note This function returns an empty rect if the device does not report touch point sizes.
*/
QRectF QTouchEvent::TouchPoint::rect() const
{
return d->rect;
}
/*!
Returns the rect for this touch point in scene coordinates.
\note This function returns an empty rect if the device does not report touch point sizes.
\sa scenePos(), rect()
*/
QRectF QTouchEvent::TouchPoint::sceneRect() const
{
return d->sceneRect;
}
/*!
Returns the rect for this touch point in screen coordinates.
\note This function returns an empty rect if the device does not report touch point sizes.
\sa screenPos(), rect()
*/
QRectF QTouchEvent::TouchPoint::screenRect() const
{
return d->screenRect;
}
/*!
Returns the pressure of this touch point. The return value is in
the range 0.0 to 1.0.
*/
qreal QTouchEvent::TouchPoint::pressure() const
{
return d->pressure;
}
/*! \internal */
void QTouchEvent::TouchPoint::setId(int id)
{
if (d->ref != 1)
d = d->detach();
d->id = id;
}
/*! \internal */
void QTouchEvent::TouchPoint::setState(Qt::TouchPointStates state)
{
if (d->ref != 1)
d = d->detach();
d->state = state;
}
/*! \internal */
void QTouchEvent::TouchPoint::setPos(const QPointF &pos)
{
if (d->ref != 1)
d = d->detach();
d->rect.moveCenter(pos);
}
/*! \internal */
void QTouchEvent::TouchPoint::setScenePos(const QPointF &scenePos)
{
if (d->ref != 1)
d = d->detach();
d->sceneRect.moveCenter(scenePos);
}
/*! \internal */
void QTouchEvent::TouchPoint::setScreenPos(const QPointF &screenPos)
{
if (d->ref != 1)
d = d->detach();
d->screenRect.moveCenter(screenPos);
}
/*! \internal */
void QTouchEvent::TouchPoint::setNormalizedPos(const QPointF &normalizedPos)
{
if (d->ref != 1)
d = d->detach();
d->normalizedPos = normalizedPos;
}
/*! \internal */
void QTouchEvent::TouchPoint::setStartPos(const QPointF &startPos)
{
if (d->ref != 1)
d = d->detach();
d->startPos = startPos;
}
/*! \internal */
void QTouchEvent::TouchPoint::setStartScenePos(const QPointF &startScenePos)
{
if (d->ref != 1)
d = d->detach();
d->startScenePos = startScenePos;
}
/*! \internal */
void QTouchEvent::TouchPoint::setStartScreenPos(const QPointF &startScreenPos)
{
if (d->ref != 1)
d = d->detach();
d->startScreenPos = startScreenPos;
}
/*! \internal */
void QTouchEvent::TouchPoint::setStartNormalizedPos(const QPointF &startNormalizedPos)
{
if (d->ref != 1)
d = d->detach();
d->startNormalizedPos = startNormalizedPos;
}
/*! \internal */
void QTouchEvent::TouchPoint::setLastPos(const QPointF &lastPos)
{
if (d->ref != 1)
d = d->detach();
d->lastPos = lastPos;
}
/*! \internal */
void QTouchEvent::TouchPoint::setLastScenePos(const QPointF &lastScenePos)
{
if (d->ref != 1)
d = d->detach();
d->lastScenePos = lastScenePos;
}
/*! \internal */
void QTouchEvent::TouchPoint::setLastScreenPos(const QPointF &lastScreenPos)
{
if (d->ref != 1)
d = d->detach();
d->lastScreenPos = lastScreenPos;
}
/*! \internal */
void QTouchEvent::TouchPoint::setLastNormalizedPos(const QPointF &lastNormalizedPos)
{
if (d->ref != 1)
d = d->detach();
d->lastNormalizedPos = lastNormalizedPos;
}
/*! \internal */
void QTouchEvent::TouchPoint::setRect(const QRectF &rect)
{
if (d->ref != 1)
d = d->detach();
d->rect = rect;
}
/*! \internal */
void QTouchEvent::TouchPoint::setSceneRect(const QRectF &sceneRect)
{
if (d->ref != 1)
d = d->detach();
d->sceneRect = sceneRect;
}
/*! \internal */
void QTouchEvent::TouchPoint::setScreenRect(const QRectF &screenRect)
{
if (d->ref != 1)
d = d->detach();
d->screenRect = screenRect;
}
/*! \internal */
void QTouchEvent::TouchPoint::setPressure(qreal pressure)
{
if (d->ref != 1)
d = d->detach();
d->pressure = pressure;
}
/*! \internal */
QTouchEvent::TouchPoint &QTouchEvent::TouchPoint::operator=(const QTouchEvent::TouchPoint &other)
{
other.d->ref.ref();
if (!d->ref.deref())
delete d;
d = other.d;
return *this;
}
#ifndef QT_NO_GESTURES
/*!
\class QGestureEvent
\since 4.6
\ingroup events
\ingroup gestures
\brief The QGestureEvent class provides the description of triggered gestures.
The QGestureEvent class contains a list of gestures, which can be obtained using the
gestures() function.
The gestures are either active or canceled. A list of those that are currently being
executed can be obtained using the activeGestures() function. A list of those which
were previously active and have been canceled can be accessed using the
canceledGestures() function. A gesture might be canceled if the current window loses
focus, for example, or because of a timeout, or for other reasons.
If the event handler does not accept the event by calling the generic
QEvent::accept() function, all individual QGesture object that were not
accepted and in the Qt::GestureStarted state will be propagated up the
parent widget chain until a widget accepts them individually, by calling
QGestureEvent::accept() for each of them, or an event filter consumes the
event.
\sa QGesture, QGestureRecognizer,
QWidget::grabGesture(), QGraphicsObject::grabGesture()
*/
/*!
Creates new QGestureEvent containing a list of \a gestures.
*/
QGestureEvent::QGestureEvent(const QList<QGesture *> &gestures)
: QEvent(QEvent::Gesture)
{
d = reinterpret_cast<QEventPrivate *>(new QGestureEventPrivate(gestures));
}
/*!
Destroys QGestureEvent.
*/
QGestureEvent::~QGestureEvent()
{
delete reinterpret_cast<QGestureEventPrivate *>(d);
}
/*!
Returns all gestures that are delivered in the event.
*/
QList<QGesture *> QGestureEvent::gestures() const
{
return d_func()->gestures;
}
/*!
Returns a gesture object by \a type.
*/
QGesture *QGestureEvent::gesture(Qt::GestureType type) const
{
const QGestureEventPrivate *d = d_func();
for(int i = 0; i < d->gestures.size(); ++i)
if (d->gestures.at(i)->gestureType() == type)
return d->gestures.at(i);
return 0;
}
/*!
Returns a list of active (not canceled) gestures.
*/
QList<QGesture *> QGestureEvent::activeGestures() const
{
QList<QGesture *> gestures;
foreach (QGesture *gesture, d_func()->gestures) {
if (gesture->state() != Qt::GestureCanceled)
gestures.append(gesture);
}
return gestures;
}
/*!
Returns a list of canceled gestures.
*/
QList<QGesture *> QGestureEvent::canceledGestures() const
{
QList<QGesture *> gestures;
foreach (QGesture *gesture, d_func()->gestures) {
if (gesture->state() == Qt::GestureCanceled)
gestures.append(gesture);
}
return gestures;
}
/*!
Sets the accept flag of the given \a gesture object to the specified \a value.
Setting the accept flag indicates that the event receiver wants the \a gesture.
Unwanted gestures may be propagated to the parent widget.
By default, gestures in events of type QEvent::Gesture are accepted, and
gestures in QEvent::GestureOverride events are ignored.
For convenience, the accept flag can also be set with
\l{QGestureEvent::accept()}{accept(gesture)}, and cleared with
\l{QGestureEvent::ignore()}{ignore(gesture)}.
*/
void QGestureEvent::setAccepted(QGesture *gesture, bool value)
{
if (gesture)
setAccepted(gesture->gestureType(), value);
}
/*!
Sets the accept flag of the given \a gesture object, the equivalent of calling
\l{QGestureEvent::setAccepted()}{setAccepted(gesture, true)}.
Setting the accept flag indicates that the event receiver wants the
gesture. Unwanted gestures may be propagated to the parent widget.
\sa QGestureEvent::ignore()
*/
void QGestureEvent::accept(QGesture *gesture)
{
if (gesture)
setAccepted(gesture->gestureType(), true);
}
/*!
Clears the accept flag parameter of the given \a gesture object, the equivalent
of calling \l{QGestureEvent::setAccepted()}{setAccepted(gesture, false)}.
Clearing the accept flag indicates that the event receiver does not
want the gesture. Unwanted gestures may be propagated to the parent widget.
\sa QGestureEvent::accept()
*/
void QGestureEvent::ignore(QGesture *gesture)
{
if (gesture)
setAccepted(gesture->gestureType(), false);
}
/*!
Returns true if the \a gesture is accepted; otherwise returns false.
*/
bool QGestureEvent::isAccepted(QGesture *gesture) const
{
return gesture ? isAccepted(gesture->gestureType()) : false;
}
/*!
Sets the accept flag of the given \a gestureType object to the specified
\a value.
Setting the accept flag indicates that the event receiver wants to receive
gestures of the specified type, \a gestureType. Unwanted gestures may be
propagated to the parent widget.
By default, gestures in events of type QEvent::Gesture are accepted, and
gestures in QEvent::GestureOverride events are ignored.
For convenience, the accept flag can also be set with
\l{QGestureEvent::accept()}{accept(gestureType)}, and cleared with
\l{QGestureEvent::ignore()}{ignore(gestureType)}.
*/
void QGestureEvent::setAccepted(Qt::GestureType gestureType, bool value)
{
setAccepted(false);
d_func()->accepted[gestureType] = value;
}
/*!
Sets the accept flag of the given \a gestureType, the equivalent of calling
\l{QGestureEvent::setAccepted()}{setAccepted(gestureType, true)}.
Setting the accept flag indicates that the event receiver wants the
gesture. Unwanted gestures may be propagated to the parent widget.
\sa QGestureEvent::ignore()
*/
void QGestureEvent::accept(Qt::GestureType gestureType)
{
setAccepted(gestureType, true);
}
/*!
Clears the accept flag parameter of the given \a gestureType, the equivalent
of calling \l{QGestureEvent::setAccepted()}{setAccepted(gesture, false)}.
Clearing the accept flag indicates that the event receiver does not
want the gesture. Unwanted gestures may be propgated to the parent widget.
\sa QGestureEvent::accept()
*/
void QGestureEvent::ignore(Qt::GestureType gestureType)
{
setAccepted(gestureType, false);
}
/*!
Returns true if the gesture of type \a gestureType is accepted; otherwise
returns false.
*/
bool QGestureEvent::isAccepted(Qt::GestureType gestureType) const
{
return d_func()->accepted.value(gestureType, true);
}
/*!
\internal
Sets the widget for this event to the \a widget specified.
*/
void QGestureEvent::setWidget(QWidget *widget)
{
d_func()->widget = widget;
}
/*!
Returns the widget on which the event occurred.
*/
QWidget *QGestureEvent::widget() const
{
return d_func()->widget;
}
#ifndef QT_NO_GRAPHICSVIEW
/*!
Returns the scene-local coordinates if the \a gesturePoint is inside a
graphics view.
This functional might be useful when the gesture event is delivered to a
QGraphicsObject to translate a point in screen coordinates to scene-local
coordinates.
\sa QPointF::isNull().
*/
QPointF QGestureEvent::mapToGraphicsScene(const QPointF &gesturePoint) const
{
QWidget *w = widget();
if (w) // we get the viewport as widget, not the graphics view
w = w->parentWidget();
QGraphicsView *view = qobject_cast<QGraphicsView*>(w);
if (view) {
return view->mapToScene(view->mapFromGlobal(gesturePoint.toPoint()));
}
return QPointF();
}
#endif //QT_NO_GRAPHICSVIEW
/*!
\internal
*/
QGestureEventPrivate *QGestureEvent::d_func()
{
return reinterpret_cast<QGestureEventPrivate *>(d);
}
/*!
\internal
*/
const QGestureEventPrivate *QGestureEvent::d_func() const
{
return reinterpret_cast<const QGestureEventPrivate *>(d);
}
#ifdef Q_NO_USING_KEYWORD
/*!
\fn void QGestureEvent::setAccepted(bool accepted)
Sets or clears the event's internal flag that determines whether it should
be delivered to other objects.
Calling this function with a value of true for \a accepted indicates that the
caller has accepted the event and that it should not be propagated further.
Calling this function with a value of false indicates that the caller has
ignored the event and that it should be delivered to other objects.
For convenience, the accept flag can also be set with accept(), and cleared
with ignore().
\sa QEvent::accepted
*/
/*!
\fn bool QGestureEvent::isAccepted() const
Returns true is the event has been accepted; otherwise returns false.
\sa QEvent::accepted
*/
/*!
\fn void QGestureEvent::accept()
Accepts the event, the equivalent of calling setAccepted(true).
\sa QEvent::accept()
*/
/*!
\fn void QGestureEvent::ignore()
Ignores the event, the equivalent of calling setAccepted(false).
\sa QEvent::ignore()
*/
#endif
#endif // QT_NO_GESTURES
QT_END_NAMESPACE
|