summaryrefslogtreecommitdiffstats
path: root/mac/tkMacButton.c
blob: 739cc8b2ff236202b9734c2c9ebf6d08c275ac7c (plain)
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
/* 
 * tkMacButton.c --
 *
 *	This file implements the Macintosh specific portion of the
 *	button widgets.
 *
 * Copyright (c) 1996-1997 by Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tkMacButton.c,v 1.9 2000/02/10 08:51:43 jingham Exp $
 */

#include "tkButton.h"
#include "tkMacInt.h"
#include <Controls.h>
#include <LowMem.h>
#include <Appearance.h>


#include <ToolUtils.h>

/*
 * Some defines used to control what type of control is drawn.
 */

#define DRAW_LABEL	0		/* Labels are treated genericly. */
#define DRAW_CONTROL	1		/* Draw using the Native control. */
#define DRAW_CUSTOM	2		/* Make our own button drawing. */
#define DRAW_BEVEL	3

/*
 * The following structures are used to draw our controls.  Rather than
 * having many Mac controls we just use one control of each type and
 * reuse them for all Tk widgets.  When the windowRef variable is NULL
 * it means none of the data structures have been allocated.
 */

static WindowRef windowRef = NULL;
static CWindowRecord windowRecord;
static ControlRef buttonHandle;
static ControlRef checkHandle;
static ControlRef radioHandle;
static ControlRef smallBevelHandle;
static ControlRef smallStickyBevelHandle;
static ControlRef medBevelHandle;
static ControlRef medStickyBevelHandle;
static ControlRef largeBevelHandle;
static ControlRef largeStickyBevelHandle;

/*
 * These are used to store the image content for
 * beveled buttons - i.e. buttons with images.
 */
 
static ControlButtonContentInfo bevelButtonContent;
static OpenCPicParams picParams;

static CCTabHandle buttonTabHandle;
static CCTabHandle checkTabHandle;
static CCTabHandle radioTabHandle;
static PixMapHandle oldPixPtr;

/*
 * These functions are used when Appearance is present.
 * By embedding all our controls in a userPane control,
 * we can color the background of the text in radiobuttons
 * and checkbuttons.  Thanks to Peter Gontier of Apple DTS
 * for help on this one.
 */

static ControlRef userPaneHandle;
static RGBColor gUserPaneBackground = { ~0, ~0, ~0};
static pascal OSErr SetUserPaneDrawProc(ControlRef control,
	ControlUserPaneDrawProcPtr upp);
static pascal OSErr SetUserPaneSetUpSpecialBackgroundProc(ControlRef control,
	ControlUserPaneBackgroundProcPtr upp);
static pascal void UserPaneDraw(ControlRef control, ControlPartCode cpc);
static pascal void UserPaneBackgroundProc(ControlHandle,
	ControlBackgroundPtr info);

/*
 * Forward declarations for procedures defined later in this file:
 */

static int	UpdateControlColors _ANSI_ARGS_((TkButton *butPtr,
	ControlRef controlHandle, CCTabHandle ccTabHandle,
	RGBColor *saveColorPtr));
static void	DrawBufferedControl _ANSI_ARGS_((TkButton *butPtr,
	GWorldPtr destPort, GC gc, Pixmap pixmap));
static void	InitSampleControls();
static void	SetupBevelButton _ANSI_ARGS_((TkButton *butPtr,
	ControlRef controlHandle, 
	GWorldPtr destPort, GC gc, Pixmap pixmap));
static void	ChangeBackgroundWindowColor _ANSI_ARGS_((
    WindowRef macintoshWindow, RGBColor rgbColor,
    RGBColor *oldColor));
static void	ButtonExitProc _ANSI_ARGS_((ClientData clientData));

/*
 * The class procedure table for the button widgets.
 */

TkClassProcs tkpButtonProcs = { 
    NULL,			/* createProc. */
    TkButtonWorldChanged,	/* geometryProc. */
    NULL			/* modalProc. */
};

/*
 *----------------------------------------------------------------------
 *
 * TkpCreateButton --
 *
 *	Allocate a new TkButton structure.
 *
 * Results:
 *	Returns a newly allocated TkButton structure.
 *
 * Side effects:
 *	Registers an event handler for the widget.
 *
 *----------------------------------------------------------------------
 */

TkButton *
TkpCreateButton(
    Tk_Window tkwin)
{
    return (TkButton *) ckalloc(sizeof(TkButton));
}

/*
 *----------------------------------------------------------------------
 *
 * TkpDisplayButton --
 *
 *	This procedure is invoked to display a button widget.  It is
 *	normally invoked as an idle handler.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Commands are output to X to display the button in its
 *	current mode.  The REDRAW_PENDING flag is cleared.
 *
 *----------------------------------------------------------------------
 */

void
TkpDisplayButton(
    ClientData clientData)	/* Information about widget. */
{
    TkButton *butPtr = (TkButton *) clientData;
    Pixmap pixmap;
    GC gc;
    Tk_3DBorder border;
    int x = 0;			/* Initialization only needed to stop
				 * compiler warning. */
    int y, relief;
    register Tk_Window tkwin = butPtr->tkwin;
    int width, height;
    int offset;			/* 0 means this is a normal widget.  1 means
				 * it is an image button, so we offset the
				 * image to make the button appear to move
				 * up and down as the relief changes. */
    int hasImageOrBitmap;
    CGrafPtr saveWorld;
    GDHandle saveDevice;
    GWorldPtr destPort;
    int drawType, borderWidth;

    GetGWorld(&saveWorld, &saveDevice);

    butPtr->flags &= ~REDRAW_PENDING;
    if ((butPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
	return;
    }

    /*
     * In order to avoid screen flashes, this procedure redraws
     * the button in a pixmap, then copies the pixmap to the
     * screen in a single operation.  This means that there's no
     * point in time where the on-sreen image has been cleared.
     */

    pixmap = Tk_GetPixmap(butPtr->display, Tk_WindowId(tkwin),
	    Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin));

    hasImageOrBitmap = ((butPtr->image != NULL) || (butPtr->bitmap != None));
    offset = (butPtr->type == TYPE_BUTTON) && hasImageOrBitmap;

    border = butPtr->normalBorder;
    if ((butPtr->state == STATE_DISABLED) && (butPtr->disabledFg != NULL)) {
	gc = butPtr->disabledGC;
    } else if ((butPtr->type == TYPE_BUTTON)
	    && (butPtr->state == STATE_ACTIVE)) {
	gc = butPtr->activeTextGC;
	border = butPtr->activeBorder;
    } else {
	gc = butPtr->normalTextGC;
    }
    
    if ((butPtr->flags & SELECTED) && (butPtr->state != STATE_ACTIVE)
	    && (butPtr->selectBorder != NULL) && !butPtr->indicatorOn) {
	border = butPtr->selectBorder;
    }

    /*
     * Override the relief specified for the button if this is a
     * checkbutton or radiobutton and there's no indicator.
     * However, don't do this in the presence of Appearance, since
     * then the bevel button will take care of the relief.
     */

    relief = butPtr->relief;

    if ((butPtr->type >= TYPE_CHECK_BUTTON) && !butPtr->indicatorOn) { 
	if (!TkMacHaveAppearance() || !hasImageOrBitmap) {
	    relief = (butPtr->flags & SELECTED) ? TK_RELIEF_SUNKEN
		: TK_RELIEF_RAISED;
	}
    }

    /*
     * See the comment in UpdateControlColors as to why we use the 
     * highlightbackground for the border of Macintosh buttons.
     */
     
    if (butPtr->type == TYPE_BUTTON) {
	Tk_Fill3DRectangle(tkwin, pixmap, butPtr->highlightBorder, 0, 0,
		Tk_Width(tkwin), Tk_Height(tkwin), 0, TK_RELIEF_FLAT);
    } else {
	Tk_Fill3DRectangle(tkwin, pixmap, butPtr->normalBorder, 0, 0,
		Tk_Width(tkwin), Tk_Height(tkwin), 0, TK_RELIEF_FLAT);
    }
   
    if (butPtr->type == TYPE_LABEL) {
	drawType = DRAW_LABEL;
    } else if (butPtr->type == TYPE_BUTTON) {
	if (!hasImageOrBitmap) {
	    drawType = DRAW_CONTROL;
	} else if (butPtr->image != None) {
	    drawType = DRAW_BEVEL;
	} else {
	    /*
	     * TO DO - The current way the we draw bitmaps (XCopyPlane)
	     * uses CopyDeepMask in this one case.  The Picture recording 
	     * does not record this call, and so we can't use the
	     * Appearance bevel button here.  The only case that would
	     * exercise this is if you use a bitmap, with
	     * -data & -mask specified.	 We should probably draw the 
	     * appearance button and overprint the image in this case.
	     * This just punts and draws the old-style, ugly, button.
	     */
	     
	    if (gc->clip_mask == 0) {
		drawType = DRAW_BEVEL;
	    } else {
		TkpClipMask *clipPtr = (TkpClipMask*) gc->clip_mask;
		if ((clipPtr->type == TKP_CLIP_PIXMAP) &&
			(clipPtr->value.pixmap != butPtr->bitmap)) {
		    drawType = DRAW_CUSTOM;
		} else {
		    drawType = DRAW_BEVEL;
		}
	    }
	}
    } else {
	if (butPtr->indicatorOn) {
	    drawType = DRAW_CONTROL;
	} else if (hasImageOrBitmap) {
	    if (gc->clip_mask == 0) {
		drawType = DRAW_BEVEL;
	    } else {
		TkpClipMask *clipPtr = (TkpClipMask*) gc->clip_mask;
		if ((clipPtr->type == TKP_CLIP_PIXMAP) &&
			(clipPtr->value.pixmap != butPtr->bitmap)) {
		    drawType = DRAW_CUSTOM;
		} else {
		    drawType = DRAW_BEVEL;
		}
	    }
	} else {
	    drawType = DRAW_CUSTOM;
	}
    }

    /*
     * Draw the native portion of the buttons.	Start by creating the control
     * if it doesn't already exist.  Then configure the Macintosh control from
     * the Tk info.  Finally, we call Draw1Control to draw to the screen.
     */

    if ((drawType == DRAW_CONTROL) || 
	    ((drawType == DRAW_BEVEL) && TkMacHaveAppearance())) {
	borderWidth = 0;
	
	/*
	 * This part uses Macintosh rather than Tk calls to draw
	 * to the screen.  Make sure the ports etc. are set correctly.
	 */
	
	destPort = TkMacGetDrawablePort(pixmap);
	SetGWorld(destPort, NULL);
	DrawBufferedControl(butPtr, destPort, gc, pixmap);
    }

    if ((drawType == DRAW_CUSTOM) || (drawType == DRAW_LABEL)) {
	borderWidth = butPtr->borderWidth;
    }

    /*
     * Display image or bitmap or text for button.  This has
     * already been done under Appearance with the Bevel
     * button types.
     */

    if ((drawType == DRAW_BEVEL) && TkMacHaveAppearance()) {
	/* Empty Body */
    } else if (butPtr->image != None) {
	Tk_SizeOfImage(butPtr->image, &width, &height);

	imageOrBitmap:
	TkComputeAnchor(butPtr->anchor, tkwin, 0, 0,
		butPtr->indicatorSpace + width, height, &x, &y);
	x += butPtr->indicatorSpace;

	x += offset;
	y += offset;
	if (relief == TK_RELIEF_RAISED) {
	    x -= offset;
	    y -= offset;
	} else if (relief == TK_RELIEF_SUNKEN) {
	    x += offset;
	    y += offset;
	}
	if (butPtr->image != NULL) {
	    if ((butPtr->selectImage != NULL) && (butPtr->flags & SELECTED)) {
		Tk_RedrawImage(butPtr->selectImage, 0, 0, width, height,
			pixmap, x, y);
	    } else {
		Tk_RedrawImage(butPtr->image, 0, 0, width, height, pixmap,
			x, y);
	    }
	} else {
	    XSetClipOrigin(butPtr->display, gc, x, y);
	    XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc, 0, 0,
		    (unsigned int) width, (unsigned int) height, x, y, 1);
	    XSetClipOrigin(butPtr->display, gc, 0, 0);
	}
	y += height/2;
    } else if (butPtr->bitmap != None) {
	Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height);
	goto imageOrBitmap;
    } else {
	TkComputeAnchor(butPtr->anchor, tkwin, butPtr->padX, butPtr->padY,
		butPtr->indicatorSpace + butPtr->textWidth, butPtr->textHeight,
		&x, &y);

	x += butPtr->indicatorSpace;

	Tk_DrawTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout,
		x, y, 0, -1);
	y += butPtr->textHeight/2;
    }

    /*
     * If the button is disabled with a stipple rather than a special
     * foreground color, generate the stippled effect.	If the widget
     * is selected and we use a different background color when selected,
     * must temporarily modify the GC.
     */

    if ((butPtr->state == STATE_DISABLED)
	    && ((butPtr->disabledFg == NULL) || (butPtr->image != NULL))) {
	if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn
		&& (butPtr->selectBorder != NULL)) {
	    XSetForeground(butPtr->display, butPtr->disabledGC,
		    Tk_3DBorderColor(butPtr->selectBorder)->pixel);
	}
	XFillRectangle(butPtr->display, pixmap, butPtr->disabledGC,
		butPtr->inset, butPtr->inset,
		(unsigned) (Tk_Width(tkwin) - 2*butPtr->inset),
		(unsigned) (Tk_Height(tkwin) - 2*butPtr->inset));
	if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn
		&& (butPtr->selectBorder != NULL)) {
	    XSetForeground(butPtr->display, butPtr->disabledGC,
		    Tk_3DBorderColor(butPtr->normalBorder)->pixel);
	}
    }

    /*
     * Draw the border and traversal highlight last.  This way, if the
     * button's contents overflow they'll be covered up by the border.
     */

    if (relief != TK_RELIEF_FLAT) {
	int inset = butPtr->highlightWidth;
	Tk_Draw3DRectangle(tkwin, pixmap, border, inset, inset,
		Tk_Width(tkwin) - 2*inset, Tk_Height(tkwin) - 2*inset,
		butPtr->borderWidth, relief);
    }

    /*
     * Copy the information from the off-screen pixmap onto the screen,
     * then delete the pixmap.
     */

    XCopyArea(butPtr->display, pixmap, Tk_WindowId(tkwin),
	    butPtr->copyGC, 0, 0, (unsigned) Tk_Width(tkwin),
	    (unsigned) Tk_Height(tkwin), 0, 0);
    Tk_FreePixmap(butPtr->display, pixmap);

    SetGWorld(saveWorld, saveDevice);
}

/*
 *----------------------------------------------------------------------
 *
 * TkpComputeButtonGeometry --
 *
 *	After changes in a button's text or bitmap, this procedure
 *	recomputes the button's geometry and passes this information
 *	along to the geometry manager for the window.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The button's window may change size.
 *
 *----------------------------------------------------------------------
 */

void
TkpComputeButtonGeometry(
    TkButton *butPtr)	/* Button whose geometry may have changed. */
{
    int width, height, avgWidth;
    Tk_FontMetrics fm;


    /*
     * First figure out the size of the contents of the button.
     */
     
    butPtr->indicatorSpace = 0;
    if (butPtr->image != NULL) {
	Tk_SizeOfImage(butPtr->image, &width, &height);
	imageOrBitmap:
	if (butPtr->width > 0) {
	    width = butPtr->width;
	}
	if (butPtr->height > 0) {
	    height = butPtr->height;
	}
	if ((butPtr->type >= TYPE_CHECK_BUTTON) && butPtr->indicatorOn) {
	    butPtr->indicatorSpace = height;
	    if (butPtr->type == TYPE_CHECK_BUTTON) {
		butPtr->indicatorDiameter = (65*height)/100;
	    } else {
		butPtr->indicatorDiameter = (75*height)/100;
	    }
	}
    } else if (butPtr->bitmap != None) {
	Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height);
	goto imageOrBitmap;
    } else {
	Tk_FreeTextLayout(butPtr->textLayout);
	butPtr->textLayout = Tk_ComputeTextLayout(butPtr->tkfont,
		Tcl_GetString(butPtr->textPtr), -1, butPtr->wrapLength,
		butPtr->justify, 0, &butPtr->textWidth, &butPtr->textHeight);

	width = butPtr->textWidth;
	height = butPtr->textHeight;
	avgWidth = Tk_TextWidth(butPtr->tkfont, "0", 1);
	Tk_GetFontMetrics(butPtr->tkfont, &fm);

	if (butPtr->width > 0) {
	    width = butPtr->width * avgWidth;
	}
	if (butPtr->height > 0) {
	    height = butPtr->height * fm.linespace;
	}
	if ((butPtr->type >= TYPE_CHECK_BUTTON) && butPtr->indicatorOn) {
	    butPtr->indicatorDiameter = fm.linespace;
	    if (butPtr->type == TYPE_CHECK_BUTTON) {
		butPtr->indicatorDiameter = (80*butPtr->indicatorDiameter)/100;
	    }
	    butPtr->indicatorSpace = butPtr->indicatorDiameter + avgWidth;
	}
    }

    /*
     * Now figure out the size of the border decorations for the button.
     */
     
    if (butPtr->highlightWidth < 0) {
	butPtr->highlightWidth = 0;
    }
    
    /*
     * The width and height calculation for Appearance buttons with images & 
     * non-Appearance buttons with images is different.	 In the latter case, 
     * we add the borderwidth to the inset, since we are going to stamp a
     * 3-D border over the image.  In the former, we add it to the height,
     * directly, since Appearance will draw the border as part of our control.
     *
     * When issuing the geometry request, add extra space for the indicator,
     * if any, and for the border and padding, plus if this is an image two 
     * extra pixels so the display can be offset by 1 pixel in either
     * direction for the raised or lowered effect.
     *
     * The highlight width corresponds to the default ring on the Macintosh.
     * As such, the highlight width is only added if the button is the default
     * button.	The actual width of the default ring is one less than the
     * highlight width as there is also one pixel of spacing.
     * Appearance buttons with images do not have a highlight ring, because the 
     * Bevel button type does not support one.
     */

    if ((butPtr->image == None) && (butPtr->bitmap == None)) {
	width += 2*butPtr->padX;
	height += 2*butPtr->padY;
    }
    
    if ((butPtr->type == TYPE_BUTTON)) {
	if ((butPtr->image == None) && (butPtr->bitmap == None)) {
	    butPtr->inset = 0;
	    if (butPtr->defaultState != STATE_DISABLED) {
		butPtr->inset += butPtr->highlightWidth;
	    }
	} else if (TkMacHaveAppearance()) {
	    butPtr->inset = 0;
	    width += (2 * butPtr->borderWidth + 4);
	    height += (2 * butPtr->borderWidth + 4);
	} else {
	    butPtr->inset = butPtr->borderWidth;
	    width += 2;
	    height += 2;
	    if (butPtr->defaultState != STATE_DISABLED) {
		butPtr->inset += butPtr->highlightWidth;
	    }
	}
    } else if ((butPtr->type != TYPE_LABEL)) {
	if (butPtr->indicatorOn) {
	    butPtr->inset = 0;
	} else {
	    /*
	     * Under Appearance, the Checkbutton or radiobutton with an image
	     * is represented by a BevelButton with the Sticky defProc...  
	     * So we must set its height in the same way as the Button 
	     * with an image or bitmap.
	     */
	    if (((butPtr->image != None) || (butPtr->bitmap != None))
		    && TkMacHaveAppearance()) {
		int border;
		butPtr->inset = 0;
		if ( butPtr->borderWidth <= 2 ) {
		    border = 6;
		}  else {
		    border = 2 * butPtr->borderWidth + 2;
		}	       
		width += border;
		height += border;
	    } else {
		butPtr->inset = butPtr->borderWidth;
	    }	
	}	
    } else {
	butPtr->inset = butPtr->borderWidth;
    }



    Tk_GeometryRequest(butPtr->tkwin, (int) (width + butPtr->indicatorSpace
	    + 2*butPtr->inset), (int) (height + 2*butPtr->inset));
    Tk_SetInternalBorder(butPtr->tkwin, butPtr->inset);
}

/*
 *----------------------------------------------------------------------
 *
 * TkpDestroyButton --
 *
 *	Free data structures associated with the button control.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Restores the default control state.
 *
 *----------------------------------------------------------------------
 */

void
TkpDestroyButton(
    TkButton *butPtr)
{
    /* Do nothing. */
}

/*
 *--------------------------------------------------------------
 *
 * DrawBufferedControl --
 *
 *	This function uses a dummy Macintosh window to allow
 *	drawing Mac controls to any GWorld (including off-screen
 *	bitmaps).  In addition, this code may apply custom
 *	colors passed in the TkButton.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Control is to the GWorld.  Static state created on
 *	first invocation of this routine.
 *
 *--------------------------------------------------------------
 */

static void
DrawBufferedControl(
    TkButton *butPtr,		/* Tk button. */
    GWorldPtr destPort,		/* Off screen GWorld. */
    GC gc,			/* The GC we are drawing into - needed for
				 * the bevel button */
    Pixmap pixmap		/* The pixmap we are drawing into - needed
				   for the bevel button */
    )		
{
    ControlRef controlHandle;
    CCTabHandle ccTabHandle;
    int windowColorChanged = false;
    RGBColor saveBackColor;
    int isBevel = 0;
   
    if (windowRef == NULL) {
	InitSampleControls();
    }
    
    /*
     * Now swap in the passed in GWorld for the portBits of our fake
     * window.	We also adjust various fields in the WindowRecord to make
     * the system think this is a normal window.
     * Note, we can use DrawControlInCurrentPort under Appearance, so we don't
     * need to swap pixmaps.
     */
    
    if (!TkMacHaveAppearance()) {
	((CWindowPeek) windowRef)->port.portPixMap = destPort->portPixMap;
    }
    
    ((CWindowPeek) windowRef)->port.portRect = destPort->portRect;
    RectRgn(((CWindowPeek) windowRef)->port.visRgn, &destPort->portRect);
    RectRgn(((CWindowPeek) windowRef)->strucRgn, &destPort->portRect);
    RectRgn(((CWindowPeek) windowRef)->updateRgn, &destPort->portRect);
    RectRgn(((CWindowPeek) windowRef)->contRgn, &destPort->portRect);
    PortChanged(windowRef);
    
    /*
     * Set up control in hidden window to match what we need
     * to draw in the buffered window.	
     */
     
    isBevel = 0;   
    switch (butPtr->type) {
	case TYPE_BUTTON:
	    if (TkMacHaveAppearance()) {
		if ((butPtr->image == None) && (butPtr->bitmap == None)) {
		    controlHandle = buttonHandle;
		    ccTabHandle = buttonTabHandle;
		} else {
		    if (butPtr->borderWidth <= 2) {
			controlHandle = smallBevelHandle;
		    } else if (butPtr->borderWidth == 3) {
			controlHandle = medBevelHandle;
		    } else {
			controlHandle = largeBevelHandle;
		    }
		    ccTabHandle = buttonTabHandle;
		    SetupBevelButton(butPtr, controlHandle, destPort, 
			    gc, pixmap);
		    isBevel = 1;		
		}
	    } else {
		controlHandle = buttonHandle;
		ccTabHandle = buttonTabHandle;
	    }
	    break;
	case TYPE_RADIO_BUTTON:
	    if (TkMacHaveAppearance()) {
		if (((butPtr->image == None) && (butPtr->bitmap == None))
			|| (butPtr->indicatorOn)) {
		    controlHandle = radioHandle;
		    ccTabHandle = radioTabHandle;
		} else {
		    if (butPtr->borderWidth <= 2) {
			controlHandle = smallStickyBevelHandle;
		    } else if (butPtr->borderWidth == 3) {
			controlHandle = medStickyBevelHandle;
		    } else {
			controlHandle = largeStickyBevelHandle;
		    }
		    ccTabHandle = radioTabHandle;
		    SetupBevelButton(butPtr, controlHandle, destPort, 
			    gc, pixmap);
		    isBevel = 1;		
		}
	    } else {
		controlHandle = radioHandle;
		ccTabHandle = radioTabHandle;
	    }	       
	    break;
	case TYPE_CHECK_BUTTON:
	    if (TkMacHaveAppearance()) {
		if (((butPtr->image == None) && (butPtr->bitmap == None))
			|| (butPtr->indicatorOn)) {
		    controlHandle = checkHandle;
		    ccTabHandle = checkTabHandle;
		} else {
		    if (butPtr->borderWidth <= 2) {
			controlHandle = smallStickyBevelHandle;
		    } else if (butPtr->borderWidth == 3) {
			controlHandle = medStickyBevelHandle;
		    } else {
			controlHandle = largeStickyBevelHandle;
		    }
		    ccTabHandle = checkTabHandle;
		    SetupBevelButton(butPtr, controlHandle, destPort, 
			    gc, pixmap);
		    isBevel = 1;		
		}
	    } else {
		controlHandle = checkHandle;
		ccTabHandle = checkTabHandle;
	    }	       
	    break;
    }
    
    (**controlHandle).contrlRect.left = butPtr->inset;
    (**controlHandle).contrlRect.top = butPtr->inset;
    (**controlHandle).contrlRect.right = Tk_Width(butPtr->tkwin) 
	- butPtr->inset;
    (**controlHandle).contrlRect.bottom = Tk_Height(butPtr->tkwin) 
	- butPtr->inset;
	    
    /*
     * Setting the control visibility by hand does not 
     * seem to work under Appearance. 
     */
     
    if (TkMacHaveAppearance()) {
	SetControlVisibility(controlHandle, true, false);      
	(**userPaneHandle).contrlRect.left = 0;
	(**userPaneHandle).contrlRect.top = 0;
	(**userPaneHandle).contrlRect.right = Tk_Width(butPtr->tkwin);
	(**userPaneHandle).contrlRect.bottom = Tk_Height(butPtr->tkwin);
    } else {	  
	(**controlHandle).contrlVis = 255;
    }	  
    
		
    
    if (butPtr->flags & SELECTED) {
	(**controlHandle).contrlValue = 1;
    } else {
	(**controlHandle).contrlValue = 0;
    }
    
    if (butPtr->state == STATE_ACTIVE) {
	if (isBevel) {
	    (**controlHandle).contrlHilite = kControlButtonPart;
	} else {
	    switch (butPtr->type) {
		case TYPE_BUTTON:
		    (**controlHandle).contrlHilite = kControlButtonPart;
		    break;
		case TYPE_RADIO_BUTTON:
		    (**controlHandle).contrlHilite = kControlRadioButtonPart;
		    break;
		case TYPE_CHECK_BUTTON:
		    (**controlHandle).contrlHilite = kControlCheckBoxPart;
		    break;
	    }
	}
    } else if (butPtr->state == STATE_DISABLED) {
	(**controlHandle).contrlHilite = kControlInactivePart;
    } else {
	(**controlHandle).contrlHilite = kControlNoPart;
    }
    /*
     * Before we draw the control we must add the hidden window back to the
     * main window list.  Otherwise, radiobuttons and checkbuttons will draw
     * incorrectly.  I don't really know why - but clearly the control draw
     * proc needs to have the controls window in the window list.  This is not
     * necessary under Appearance, and will have to go when we Carbonize Tk...
     */
    if (!TkMacHaveAppearance()) {
        ((CWindowPeek) windowRef)->nextWindow = (CWindowPeek) LMGetWindowList();
        LMSetWindowList(windowRef);
    }

    /*
     * Now we can set the port to our doctered up window.  We next need
     * to muck with the colors for the port & window to draw the control
     * with the proper Tk colors.  If we need to we also draw a default
     * ring for buttons.
     * Under Appearance, we draw the control directly into destPort, and
     * just set the default control data.
     */

    if (TkMacHaveAppearance()) {
	SetPort((GrafPort *) destPort);
    } else {
	SetPort(windowRef);
    }

    windowColorChanged = UpdateControlColors(butPtr, controlHandle, 
	    ccTabHandle, &saveBackColor);
	
    if ((butPtr->type == TYPE_BUTTON) && TkMacHaveAppearance()) {
	Boolean isDefault;
	
	if (butPtr->defaultState == STATE_ACTIVE) {
	    isDefault = true;
	} else {
	    isDefault = false;
	}
	SetControlData(controlHandle, kControlNoPart, 
		kControlPushButtonDefaultTag,
		sizeof(isDefault), (Ptr) &isDefault);			
    }

    if (TkMacHaveAppearance()) {
	DrawControlInCurrentPort(userPaneHandle);
    } else {
	Draw1Control(controlHandle);
    }

    if (!TkMacHaveAppearance() &&
	    (butPtr->type == TYPE_BUTTON) && 
	    (butPtr->defaultState == STATE_ACTIVE)) {
	Rect box = (**controlHandle).contrlRect;
	RGBColor rgbColor;

	TkSetMacColor(butPtr->highlightColorPtr->pixel, &rgbColor);
	RGBForeColor(&rgbColor);
	PenSize(butPtr->highlightWidth - 1, butPtr->highlightWidth - 1);
	InsetRect(&box, -butPtr->highlightWidth, -butPtr->highlightWidth);
	FrameRoundRect(&box, 16, 16);
    }
    
    if (windowColorChanged) {
	RGBColor dummyColor;
	ChangeBackgroundWindowColor(windowRef, saveBackColor, &dummyColor);
    }
    
    /*
     * Clean up: remove the hidden window from the main window list, and
     * hide the control we drew.  
     */

    if (TkMacHaveAppearance()) {
	SetControlVisibility(controlHandle, false, false);
	if (isBevel) {
	    KillPicture(bevelButtonContent.u.picture);
	}     
    } else {	  
	(**controlHandle).contrlVis = 0;
    }	  
    if (!TkMacHaveAppearance()) {    
        LMSetWindowList((WindowRef) ((CWindowPeek) windowRef)->nextWindow);
    }
}

/*
 *--------------------------------------------------------------
 *
 * InitSampleControls --
 *
 *	This function initializes a dummy Macintosh window and
 *	sample controls to allow drawing Mac controls to any GWorld 
 *	(including off-screen bitmaps).	 
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Controls & a window are created.
 *
 *--------------------------------------------------------------
 */

static void
InitSampleControls()
{
    Rect geometry = {0, 0, 10, 10};
    CWindowPeek windowList;

    /*
     * Create a dummy window that we can draw to.  We will
     * actually replace this window's bitmap with the one
     * we want to draw to at a later time.  This window and
     * the data structures attached to it are only deallocated
     * on exit of the application.
     */

    windowRef = NewCWindow(NULL, &geometry, "\pempty", false, 
	    zoomDocProc, (WindowRef) -1, true, 0);
    if (windowRef == NULL) {
	panic("Can't allocate buffer window.");
    }
	
    /*
     * Now add the three standard controls to hidden window.  We
     * only create one of each and reuse them for every widget in
     * Tk.
     * Under Appearance, we have to embed the controls in a UserPane
     * control, so that we can color the background text in 
     * radiobuttons and checkbuttons.
     */
	
    SetPort(windowRef);
	
    if (TkMacHaveAppearance()) {
	    
	OSErr err;
	ControlRef dontCare;
	    
 	/* 
 	 * Adding UserPaneBackgroundProcs to the root control does
	 * not seem to work, so we have to add another UserPane to 
	 * the root control.
	 */
	     
	err = CreateRootControl(windowRef, &dontCare);
	if (err != noErr) {
	    panic("Can't create root control in DrawBufferedControl");
	}
	    
	userPaneHandle = NewControl(windowRef, &geometry, "\p",
		true, kControlSupportsEmbedding|kControlHasSpecialBackground, 
		0, 1, kControlUserPaneProc, (SInt32) 0);
	SetUserPaneSetUpSpecialBackgroundProc(userPaneHandle,
		UserPaneBackgroundProc);
	SetUserPaneDrawProc(userPaneHandle, UserPaneDraw);

	buttonHandle = NewControl(windowRef, &geometry, "\p",
		false, 1, 0, 1, kControlPushButtonProc, (SInt32) 0);
	EmbedControl(buttonHandle, userPaneHandle);
	checkHandle = NewControl(windowRef, &geometry, "\p",
		false, 1, 0, 1, kControlCheckBoxProc, (SInt32) 0);
	EmbedControl(checkHandle, userPaneHandle);
	radioHandle = NewControl(windowRef, &geometry, "\p",
		false, 1, 0, 1, kControlRadioButtonProc, (SInt32) 0);
	EmbedControl(radioHandle, userPaneHandle);
	smallBevelHandle = NewControl(windowRef, &geometry, "\p",
		false, 0, 0, 
		kControlBehaviorOffsetContents << 16
		| kControlContentPictHandle, 
		kControlBevelButtonSmallBevelProc, (SInt32) 0);
	EmbedControl(smallBevelHandle, userPaneHandle);
	medBevelHandle = NewControl(windowRef, &geometry, "\p",
		false, 0, 0, 
		kControlBehaviorOffsetContents << 16
		| kControlContentPictHandle, 
		kControlBevelButtonNormalBevelProc, (SInt32) 0);
	EmbedControl(medBevelHandle, userPaneHandle);
	largeBevelHandle = NewControl(windowRef, &geometry, "\p",
		false, 0, 0, 
		kControlBehaviorOffsetContents << 16
		| kControlContentPictHandle, 
		kControlBevelButtonLargeBevelProc, (SInt32) 0);
	EmbedControl(largeBevelHandle, userPaneHandle);
	bevelButtonContent.contentType = kControlContentPictHandle;
	smallStickyBevelHandle = NewControl(windowRef, &geometry, "\p",
		false, 0, 0, 
		(kControlBehaviorOffsetContents
			| kControlBehaviorSticky) << 16 
		| kControlContentPictHandle, 
		kControlBevelButtonSmallBevelProc, (SInt32) 0);
	EmbedControl(smallStickyBevelHandle, userPaneHandle);
	medStickyBevelHandle = NewControl(windowRef, &geometry, "\p",
		false, 0, 0, 
		(kControlBehaviorOffsetContents
			| kControlBehaviorSticky) << 16 
		| kControlContentPictHandle, 
		kControlBevelButtonNormalBevelProc, (SInt32) 0);
	EmbedControl(medStickyBevelHandle, userPaneHandle);
	largeStickyBevelHandle = NewControl(windowRef, &geometry, "\p",
		false, 0, 0, 
		(kControlBehaviorOffsetContents
			| kControlBehaviorSticky) << 16 
		| kControlContentPictHandle, 
		kControlBevelButtonLargeBevelProc, (SInt32) 0);
	EmbedControl(largeStickyBevelHandle, userPaneHandle);
    
	picParams.version = -2;
	picParams.hRes = 0x00480000;
	picParams.vRes = 0x00480000;
	picParams.srcRect.top = 0;
	picParams.srcRect.left = 0;
    
	((CWindowPeek) windowRef)->visible = true;
    } else {
	buttonHandle = NewControl(windowRef, &geometry, "\p",
		false, 1, 0, 1, pushButProc, (SInt32) 0);
	checkHandle = NewControl(windowRef, &geometry, "\p",
		false, 1, 0, 1, checkBoxProc, (SInt32) 0);
	radioHandle = NewControl(windowRef, &geometry, "\p",
		false, 1, 0, 1, radioButProc, (SInt32) 0);
	((CWindowPeek) windowRef)->visible = true;

	buttonTabHandle = (CCTabHandle) NewHandle(sizeof(CtlCTab));
	checkTabHandle = (CCTabHandle) NewHandle(sizeof(CtlCTab));
	radioTabHandle = (CCTabHandle) NewHandle(sizeof(CtlCTab));
    }

    /*
     * Remove our window from the window list.	This way our
     * applications and others will not be confused that this
     * window exists - but no one knows about it.
     * I actually don't see the point of doing this, and it causes Floating
     * Window support to crash under Appearance, so I just leave it out.
     * Note that we have to do without this under Carbon, since you can't
     * go poking at the window list...
     */

    if (!TkMacHaveAppearance()) {
        windowList = (CWindowPeek) LMGetWindowList();
        if (windowList == (CWindowPeek) windowRef) {
	    LMSetWindowList((WindowRef) windowList->nextWindow);
        } else {
	    while ((windowList != NULL) 
		    && (windowList->nextWindow != (CWindowPeek) windowRef)) {
	        windowList = windowList->nextWindow;
	    }
	    if (windowList != NULL) {
	        windowList->nextWindow = windowList->nextWindow->nextWindow;
	    }
        }
        ((CWindowPeek) windowRef)->nextWindow = NULL;
    }

    /* 
     * Create an exit handler to clean up this mess if we our
     * unloaded etc.  We need to remember the windows portPixMap
     * so it isn't leaked.
     *
     * TODO: The ButtonExitProc doesn't currently work and the
     * code it includes will crash the Mac on exit from Tk.
	 
     oldPixPtr = ((CWindowPeek) windowRef)->port.portPixMap;
     Tcl_CreateExitHandler(ButtonExitProc, (ClientData) NULL);
    */

}

/*
 *--------------------------------------------------------------
 *
 * SetupBevelButton --
 *
 *	Sets up the Bevel Button with image by copying the
 *	source image onto the PicHandle for the button.
 *
 * Results:
 *	None
 *
 * Side effects:
 *	The image or bitmap for the button is copied over to a picture.
 *
 *--------------------------------------------------------------
 */
void
SetupBevelButton(
    TkButton *butPtr,		/* Tk button. */
    ControlRef controlHandle,	 /* The control to set this picture to */
    GWorldPtr destPort,		/* Off screen GWorld. */
    GC gc,			/* The GC we are drawing into - needed for
				 * the bevel button */
    Pixmap pixmap		/* The pixmap we are drawing into - needed
				   for the bevel button */
    )
{
    int height, width;
    ControlButtonGraphicAlignment theAlignment;
    
    SetPort((GrafPtr) destPort);

    if (butPtr->image != None) {
	Tk_SizeOfImage(butPtr->image, 
		&width, &height);
    } else {
	Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, 
		&width, &height);
    }
	    
    if ((butPtr->width > 0) && (butPtr->width < width)) {
	width = butPtr->width;
    }
    if ((butPtr->height > 0) && (butPtr->height < height)) {
	height = butPtr->height;
    }
    
    picParams.srcRect.right = width;
    picParams.srcRect.bottom = height;
    
    bevelButtonContent.u.picture = OpenCPicture(&picParams);
    
    /*
     * TO DO - There is one case where XCopyPlane calls CopyDeepMask,
     * which does not get recorded in the picture.  So the bitmap code
     * will fail in that case.
     */
     
    if ((butPtr->selectImage != NULL) && (butPtr->flags & SELECTED)) {
	Tk_RedrawImage(butPtr->selectImage, 0, 0, width, height,
		pixmap, 0, 0);
    } else if (butPtr->image != NULL) {
	Tk_RedrawImage(butPtr->image, 0, 0, width, 
		height, pixmap, 0, 0);
    } else {			
	XSetClipOrigin(butPtr->display, gc, 0, 0);
	XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc, 0, 0,
		(unsigned int) width, (unsigned int) height, 0, 0, 1);
    }
    
    ClosePicture();
    
    SetControlData(controlHandle, kControlButtonPart,
	    kControlBevelButtonContentTag,
	    sizeof(ControlButtonContentInfo),
	    (char *) &bevelButtonContent);
	    
    if (butPtr->anchor == TK_ANCHOR_N) {
	theAlignment = kControlBevelButtonAlignTop;
    } else if (butPtr->anchor == TK_ANCHOR_NE) { 
	theAlignment = kControlBevelButtonAlignTopRight;
    } else if (butPtr->anchor == TK_ANCHOR_E) { 
	theAlignment = kControlBevelButtonAlignRight;
    } else if (butPtr->anchor == TK_ANCHOR_SE) {
	theAlignment = kControlBevelButtonAlignBottomRight;
    } else if (butPtr->anchor == TK_ANCHOR_S) {
	theAlignment = kControlBevelButtonAlignBottom;
    } else if (butPtr->anchor == TK_ANCHOR_SW) {
	theAlignment = kControlBevelButtonAlignBottomLeft;
    } else if (butPtr->anchor == TK_ANCHOR_W) {
	theAlignment = kControlBevelButtonAlignLeft;
    } else if (butPtr->anchor == TK_ANCHOR_NW) {
	theAlignment = kControlBevelButtonAlignTopLeft;
    } else if (butPtr->anchor == TK_ANCHOR_CENTER) {
	theAlignment = kControlBevelButtonAlignCenter;
    }

    SetControlData(controlHandle, kControlButtonPart,
	    kControlBevelButtonGraphicAlignTag,
	    sizeof(ControlButtonGraphicAlignment),
	    (char *) &theAlignment);

}

/*
 *--------------------------------------------------------------
 *
 * SetUserPaneDrawProc --
 *
 *	Utility function to add a UserPaneDrawProc
 *	to a userPane control.	From MoreControls code
 *	from Apple DTS.
 *
 * Results:
 *	MacOS system error.
 *
 * Side effects:
 *	The user pane gets a new UserPaneDrawProc.
 *
 *--------------------------------------------------------------
 */
pascal OSErr SetUserPaneDrawProc (
    ControlRef control,
    ControlUserPaneDrawProcPtr upp)
{
    ControlUserPaneDrawUPP myControlUserPaneDrawUPP;
    myControlUserPaneDrawUPP = NewControlUserPaneDrawProc(upp);	
    return SetControlData (control, 
	    kControlNoPart, kControlUserPaneDrawProcTag, 
	    sizeof(myControlUserPaneDrawUPP), 
	    (Ptr) &myControlUserPaneDrawUPP);
}

/*
 *--------------------------------------------------------------
 *
 * SetUserPaneSetUpSpecialBackgroundProc --
 *
 *	Utility function to add a UserPaneBackgroundProc
 *	to a userPane control
 *
 * Results:
 *	MacOS system error.
 *
 * Side effects:
 *	The user pane gets a new UserPaneBackgroundProc.
 *
 *--------------------------------------------------------------
 */
pascal OSErr
SetUserPaneSetUpSpecialBackgroundProc(
    ControlRef control, 
    ControlUserPaneBackgroundProcPtr upp)
{
    ControlUserPaneBackgroundUPP myControlUserPaneBackgroundUPP;
    myControlUserPaneBackgroundUPP = NewControlUserPaneBackgroundProc(upp);
    return SetControlData (control, kControlNoPart, 
	    kControlUserPaneBackgroundProcTag, 
	    sizeof(myControlUserPaneBackgroundUPP), 
	    (Ptr) &myControlUserPaneBackgroundUPP);
}

/*
 *--------------------------------------------------------------
 *
 * UserPaneDraw --
 *
 *	This function draws the background of the user pane that will 
 *	lie under checkboxes and radiobuttons.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The user pane gets updated to the current color.
 *
 *--------------------------------------------------------------
 */
pascal void
UserPaneDraw(
    ControlRef control,
    ControlPartCode cpc)
{
    Rect contrlRect = (**control).contrlRect;
    RGBBackColor (&gUserPaneBackground);
    EraseRect (&contrlRect);
}

/*
 *--------------------------------------------------------------
 *
 * UserPaneBackgroundProc --
 *
 *	This function sets up the background of the user pane that will 
 *	lie under checkboxes and radiobuttons.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The user pane background gets set to the current color.
 *
 *--------------------------------------------------------------
 */

pascal void
UserPaneBackgroundProc(
    ControlHandle,
    ControlBackgroundPtr info)
{
    if (info->colorDevice) {
	RGBBackColor (&gUserPaneBackground);
    }
}

/*
 *--------------------------------------------------------------
 *
 * UpdateControlColors --
 *
 *	This function will review the colors used to display
 *	a Macintosh button.  If any non-standard colors are
 *	used we create a custom palette for the button, populate
 *	with the colors for the button and install the palette.
 *
 *	Under Appearance, we just set the pointer that will be
 *	used by the UserPaneDrawProc.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The Macintosh control may get a custom palette installed.
 *
 *--------------------------------------------------------------
 */

static int
UpdateControlColors(
    TkButton *butPtr,
    ControlRef controlHandle,
    CCTabHandle ccTabHandle,
    RGBColor *saveColorPtr)
{
    XColor *xcolor;
    
    /*
     * Under Appearance we cannot change the background of the
     * button itself.  However, the color we are setting is the color
     *	of the containing userPane.  This will be the color that peeks 
     * around the rounded corners of the button.  
     * We make this the highlightbackground rather than the background,
     * because if you color the background of a frame containing a
     * button, you usually also color the highlightbackground as well,
     * or you will get a thin grey ring around the button.
     */
      
    if (TkMacHaveAppearance() && (butPtr->type == TYPE_BUTTON)) {
	xcolor = Tk_3DBorderColor(butPtr->highlightBorder);
    } else {
	xcolor = Tk_3DBorderColor(butPtr->normalBorder);
    }
    if (TkMacHaveAppearance()) {
	TkSetMacColor(xcolor->pixel, &gUserPaneBackground);
    } else {
	(**ccTabHandle).ccSeed = 0;
	(**ccTabHandle).ccRider = 0;
	(**ccTabHandle).ctSize = 3;
	(**ccTabHandle).ctTable[0].value = cBodyColor;
	TkSetMacColor(xcolor->pixel,
		&(**ccTabHandle).ctTable[0].rgb);
	(**ccTabHandle).ctTable[1].value = cTextColor;
	TkSetMacColor(butPtr->normalFg->pixel,
		&(**ccTabHandle).ctTable[1].rgb);
	(**ccTabHandle).ctTable[2].value = cFrameColor;
	TkSetMacColor(butPtr->highlightColorPtr->pixel,
		&(**ccTabHandle).ctTable[2].rgb);
	SetControlColor(controlHandle, ccTabHandle);
	
	if (((xcolor->pixel >> 24) != CONTROL_BODY_PIXEL) && 
		((butPtr->type == TYPE_CHECK_BUTTON) ||
			(butPtr->type == TYPE_RADIO_BUTTON))) {
	    RGBColor newColor;
	
	    if (TkSetMacColor(xcolor->pixel, &newColor)) {
	    ChangeBackgroundWindowColor((**controlHandle).contrlOwner,
		    newColor, saveColorPtr);
            }
	    return true;
	}
    }
    
    return false;
}

/*
 *--------------------------------------------------------------
 *
 * ChangeBackgroundWindowColor --
 *
 *	This procedure will change the background color entry
 *	in the Window's colortable.  The system isn't notified
 *	of the change.	This call should only be used to fool
 *	the drawing routines for checkboxes and radiobuttons.
 *	Any change should be temporary and be reverted after
 *	the widget is drawn.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The Window's color table will be adjusted.
 *
 *--------------------------------------------------------------
 */

static void
ChangeBackgroundWindowColor(
    WindowRef macintoshWindow,	/* A Mac window whose color to change. */
    RGBColor rgbColor,		/* The new RGB Color for the background. */
    RGBColor *oldColor)		/* The old color of the background. */
{
    AuxWinHandle auxWinHandle;
    WCTabHandle winCTabHandle;
    short ctIndex;
    ColorSpecPtr rgbScan;
	
    GetAuxWin(macintoshWindow, &auxWinHandle);
    winCTabHandle = (WCTabHandle) ((**auxWinHandle).awCTable);

    /*
     * Scan through the color table until we find the content
     * (background) color for the window.  Don't tell the system
     * about the change - it will generate damage and we will get
     * into an infinite loop.
     */

    ctIndex = (**winCTabHandle).ctSize;
    while (ctIndex > -1) {
	rgbScan = ctIndex + (**winCTabHandle).ctTable;

	if (rgbScan->value == wContentColor) {
	    *oldColor = rgbScan->rgb;
	    rgbScan->rgb = rgbColor;
	    break;
	}
	ctIndex--;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * ButtonExitProc --
 *
 *	This procedure is invoked just before the application exits.
 *	It frees all of the control handles, our dummy window, etc.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Memory is freed.
 *
 *----------------------------------------------------------------------
 */

static void
ButtonExitProc(clientData)
    ClientData clientData;		/* Not used. */
{
    Rect pixRect = {0, 0, 10, 10};
    Rect rgnRect = {0, 0, 0, 0};

    /*
     * Restore our dummy window to it's origional state by putting it
     * back in the window list and restoring it's bits.	 The destroy
     * the controls and window.
     */
 
    ((CWindowPeek) windowRef)->nextWindow = (CWindowPeek) LMGetWindowList();
    LMSetWindowList(windowRef);
    ((CWindowPeek) windowRef)->port.portPixMap = oldPixPtr;
    ((CWindowPeek) windowRef)->port.portRect = pixRect;
    RectRgn(((CWindowPeek) windowRef)->port.visRgn, &rgnRect);
    RectRgn(((CWindowPeek) windowRef)->strucRgn, &rgnRect);
    RectRgn(((CWindowPeek) windowRef)->updateRgn, &rgnRect);
    RectRgn(((CWindowPeek) windowRef)->contRgn, &rgnRect);
    PortChanged(windowRef);

    DisposeControl(buttonHandle);
    DisposeControl(checkHandle);
    DisposeControl(radioHandle);
    DisposeWindow(windowRef);
    windowRef = NULL;
}