summaryrefslogtreecommitdiffstats
path: root/macosx/tkMacOSXWindowEvent.c
blob: 75949ba937aacf1c4fe0bf66b3867c9c6c053fe4 (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
/*
 * tkMacOSXWindowEvent.c --
 *
 *	This file defines the routines for both creating and handling Window
 *	Manager class events for Tk.
 *
 * Copyright 2001-2009, Apple Inc.
 * Copyright (c) 2005-2009 Daniel A. Steffen <das@users.sourceforge.net>
 * Copyright (c) 2015 Kevin Walzer/WordTech Communications LLC.
 * Copyright (c) 2015 Marc Culler.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tkMacOSXPrivate.h"
#include "tkMacOSXWm.h"
#include "tkMacOSXEvent.h"
#include "tkMacOSXDebug.h"

/*
#ifdef TK_MAC_DEBUG
#define TK_MAC_DEBUG_EVENTS
#define TK_MAC_DEBUG_DRAWING
#endif
*/

/*
 * Declaration of functions used only in this file
 */

static int		GenerateUpdates(HIShapeRef updateRgn,
			    CGRect *updateBounds, TkWindow *winPtr);
static int		GenerateActivateEvents(TkWindow *winPtr,
			    int activeFlag);
static void		DoWindowActivate(ClientData clientData);

#pragma mark TKApplication(TKWindowEvent)

#ifdef TK_MAC_DEBUG_NOTIFICATIONS
extern NSString *NSWindowWillOrderOnScreenNotification;
extern NSString *NSWindowDidOrderOnScreenNotification;
extern NSString *NSWindowDidOrderOffScreenNotification;

#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
#define NSWindowWillStartLiveResizeNotification @"NSWindowWillStartLiveResizeNotification"
#define NSWindowDidEndLiveResizeNotification  @"NSWindowDidEndLiveResizeNotification"
#endif
#endif

extern BOOL opaqueTag;

@implementation TKApplication(TKWindowEvent)

- (void) windowActivation: (NSNotification *) notification
{
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
#endif
    BOOL activate = [[notification name]
	    isEqualToString:NSWindowDidBecomeKeyNotification];
    NSWindow *w = [notification object];
    TkWindow *winPtr = TkMacOSXGetTkWindow(w);

    if (winPtr && Tk_IsMapped(winPtr)) {
	GenerateActivateEvents(winPtr, activate);
    }
}

- (void) windowBoundsChanged: (NSNotification *) notification
{
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
#endif
    BOOL movedOnly = [[notification name]
	    isEqualToString:NSWindowDidMoveNotification];

    if (movedOnly) {
	/* constraining to screen after move not needed with AppKit */
    }

    NSWindow *w = [notification object];
    TkWindow *winPtr = TkMacOSXGetTkWindow(w);

    if (winPtr) {
	WmInfo *wmPtr = winPtr->wmInfoPtr;
	NSRect bounds = [w frame];
	int x, y, width = -1, height = -1, flags = 0;

	x = bounds.origin.x;
	y = tkMacOSXZeroScreenHeight - (bounds.origin.y + bounds.size.height);
	if (winPtr->changes.x != x || winPtr->changes.y != y){
	    flags |= TK_LOCATION_CHANGED;
	} else {
	    x = y = -1;
	}
	if (!movedOnly && (winPtr->changes.width != bounds.size.width ||
		winPtr->changes.height !=  bounds.size.height)) {
	    width = bounds.size.width - wmPtr->xInParent;
	    height = bounds.size.height - wmPtr->yInParent;
	    flags |= TK_SIZE_CHANGED;
	}
	if (Tcl_GetServiceMode() != TCL_SERVICE_NONE) {
	    /*
	     * Propagate geometry changes immediately.
	     */

	    flags |= TK_MACOSX_HANDLE_EVENT_IMMEDIATELY;
	}
	TkGenWMConfigureEvent((Tk_Window) winPtr, x, y, width, height, flags);
    }
}

- (void) windowExpanded: (NSNotification *) notification
{
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
#endif
    NSWindow *w = [notification object];
    TkWindow *winPtr = TkMacOSXGetTkWindow(w);

    if (winPtr) {
	winPtr->wmInfoPtr->hints.initial_state =
		TkMacOSXIsWindowZoomed(winPtr) ? ZoomState : NormalState;
	Tk_MapWindow((Tk_Window) winPtr);
	if (Tcl_GetServiceMode() != TCL_SERVICE_NONE) {
	    /*
	     * Process all Tk events generated by Tk_MapWindow().
	     */

	    while (Tcl_ServiceEvent(0)) {}
	    while (Tcl_DoOneEvent(TCL_IDLE_EVENTS|TCL_DONT_WAIT)) {}

	    /*
	     * NSWindowDidDeminiaturizeNotification is received after
	     * NSWindowDidBecomeKeyNotification, so activate manually
	     */

	    GenerateActivateEvents(winPtr, 1);
	} else {
	    Tcl_DoWhenIdle(DoWindowActivate, winPtr);
	}
    }
}

- (void) windowCollapsed: (NSNotification *) notification
{
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
#endif
    NSWindow *w = [notification object];
    TkWindow *winPtr = TkMacOSXGetTkWindow(w);

    if (winPtr) {
	Tk_UnmapWindow((Tk_Window) winPtr);
    }
}

- (BOOL) windowShouldClose: (NSWindow *) w
{
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, w);
#endif
    TkWindow *winPtr = TkMacOSXGetTkWindow(w);

    if (winPtr) {
	TkGenWMDestroyEvent((Tk_Window) winPtr);
	if (_windowWithMouse == w) {
	    _windowWithMouse = nil;
	    [w release];
	}
    }

    /*
     * If necessary, TkGenWMDestroyEvent() handles [close]ing the window,
     * so can always return NO from -windowShouldClose: for a Tk window.
     */

    return (winPtr ? NO : YES);
}

#ifdef TK_MAC_DEBUG_NOTIFICATIONS

- (void) windowDragStart: (NSNotification *) notification
{
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
}

- (void) windowLiveResize: (NSNotification *) notification
{
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
    //BOOL start = [[notification name] isEqualToString:NSWindowWillStartLiveResizeNotification];
}

- (void) windowMapped: (NSNotification *) notification
{
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
    NSWindow *w = [notification object];
    TkWindow *winPtr = TkMacOSXGetTkWindow(w);

    if (winPtr) {
	//Tk_MapWindow((Tk_Window) winPtr);
    }
}

- (void) windowBecameVisible: (NSNotification *) notification
{
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
}

- (void) windowUnmapped: (NSNotification *) notification
{
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
    NSWindow *w = [notification object];
    TkWindow *winPtr = TkMacOSXGetTkWindow(w);

    if (winPtr) {
	//Tk_UnmapWindow((Tk_Window) winPtr);
    }
}
#endif /* TK_MAC_DEBUG_NOTIFICATIONS */

- (void) _setupWindowNotifications
{
    NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];

#define observe(n, s) \
	[nc addObserver:self selector:@selector(s) name:(n) object:nil]
    observe(NSWindowDidBecomeKeyNotification, windowActivation:);
    observe(NSWindowDidResignKeyNotification, windowActivation:);
    observe(NSWindowDidMoveNotification, windowBoundsChanged:);
    observe(NSWindowDidResizeNotification, windowBoundsChanged:);
    observe(NSWindowDidDeminiaturizeNotification, windowExpanded:);
    observe(NSWindowDidMiniaturizeNotification, windowCollapsed:);
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    observe(NSWindowWillMoveNotification, windowDragStart:);
    observe(NSWindowWillStartLiveResizeNotification, windowLiveResize:);
    observe(NSWindowDidEndLiveResizeNotification, windowLiveResize:);
    observe(NSWindowWillOrderOnScreenNotification, windowMapped:);
    observe(NSWindowDidOrderOnScreenNotification, windowBecameVisible:);
    observe(NSWindowDidOrderOffScreenNotification, windowUnmapped:);
#endif
#undef observe
}
@end

#pragma mark TKApplication(TKApplicationEvent)

@implementation TKApplication(TKApplicationEvent)

- (void) applicationActivate: (NSNotification *) notification
{
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
#endif
    [NSApp tkCheckPasteboard];
}

- (void) applicationDeactivate: (NSNotification *) notification
{
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
#endif
    TkSuspendClipboard();
}

- (void) applicationShowHide: (NSNotification *) notification
{
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
#endif
    const char *cmd = ([[notification name] isEqualToString:
	    NSApplicationDidUnhideNotification] ?
	    "::tk::mac::OnShow" : "::tk::mac::OnHide");
    Tcl_CmdInfo dummy;

    if (_eventInterp && Tcl_GetCommandInfo(_eventInterp, cmd, &dummy)) {
	int code = Tcl_EvalEx(_eventInterp, cmd, -1, TCL_EVAL_GLOBAL);

	if (code != TCL_OK) {
	    Tcl_BackgroundError(_eventInterp);
	}
	Tcl_ResetResult(_eventInterp);
    }
}

- (void) displayChanged: (NSNotification *) notification
{
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
#endif
    TkDisplay *dispPtr = TkGetDisplayList();

    if (dispPtr) {
	TkMacOSXDisplayChanged(dispPtr->display);
    }
}
@end

#pragma mark -

/*
 *----------------------------------------------------------------------
 *
 * GenerateUpdates --
 *
 *	Given a Macintosh update region and a Tk window this function geneates
 *	a X Expose event for the window if it is within the update region. The
 *	function will then recursivly have each damaged window generate Expose
 *	events for its child windows.
 *
 * Results:
 *	True if event(s) are generated - false otherwise.
 *
 * Side effects:
 *	Additional events may be place on the Tk event queue.
 *
 *----------------------------------------------------------------------
 */

static int
GenerateUpdates(
    HIShapeRef updateRgn,
    CGRect *updateBounds,
    TkWindow *winPtr)
{
    TkWindow *childPtr;
    XEvent event;
    CGRect bounds, damageBounds;
    HIShapeRef boundsRgn, damageRgn;

    TkMacOSXWinCGBounds(winPtr, &bounds);
    if (!CGRectIntersectsRect(bounds, *updateBounds)) {
	return 0;
    }
    if (!HIShapeIntersectsRect(updateRgn, &bounds)) {
	return 0;
    }

    /*
     * Compute the bounding box of the area that the damage occured in.
     */

    boundsRgn = HIShapeCreateWithRect(&bounds);
    damageRgn = HIShapeCreateIntersection(updateRgn, boundsRgn);
    if (HIShapeIsEmpty(damageRgn)) {
	CFRelease(damageRgn);
	CFRelease(boundsRgn);
	return 0;
    }
    HIShapeGetBounds(damageRgn, &damageBounds);

    CFRelease(damageRgn);
    CFRelease(boundsRgn);

    event.xany.serial = LastKnownRequestProcessed(Tk_Display(winPtr));
    event.xany.send_event = false;
    event.xany.window = Tk_WindowId(winPtr);
    event.xany.display = Tk_Display(winPtr);
    event.type = Expose;
    event.xexpose.x = damageBounds.origin.x - bounds.origin.x;
    event.xexpose.y = damageBounds.origin.y - bounds.origin.y;
    event.xexpose.width = damageBounds.size.width;
    event.xexpose.height = damageBounds.size.height;
    event.xexpose.count = 0;
    Tk_HandleEvent(&event);

#ifdef TK_MAC_DEBUG_DRAWING
    NSLog(@"Expose %p {{%d, %d}, {%d, %d}}", event.xany.window, event.xexpose.x,
	event.xexpose.y, event.xexpose.width, event.xexpose.height);
#endif

    /*
     * Generate updates for the children of this window
     */

    for (childPtr = winPtr->childList; childPtr != NULL;
	    childPtr = childPtr->nextPtr) {
	if (!Tk_IsMapped(childPtr) || Tk_IsTopLevel(childPtr)) {
	    continue;
	}
	GenerateUpdates(updateRgn, updateBounds, childPtr);
    }

    /*
     * Generate updates for any contained windows
     */

    if (Tk_IsContainer(winPtr)) {
	childPtr = TkpGetOtherWindow(winPtr);
	if (childPtr != NULL && Tk_IsMapped(childPtr)) {
	    GenerateUpdates(updateRgn, updateBounds, childPtr);
	}

	/*
	 * TODO: Here we should handle out of process embedding.
	 */
    }

    return 1;
}

/*
 *----------------------------------------------------------------------
 *
 * GenerateActivateEvents --
 *
 *	Given a Macintosh window activate event this function generates all the
 *	X Activate events needed by Tk.
 *
 * Results:
 *	True if event(s) are generated - false otherwise.
 *
 * Side effects:
 *	Additional events may be place on the Tk event queue.
 *
 *----------------------------------------------------------------------
 */

int
GenerateActivateEvents(
    TkWindow *winPtr,
    int activeFlag)
{
    TkGenerateActivateEvents(winPtr, activeFlag);
    TkMacOSXGenerateFocusEvent(winPtr, activeFlag);
    return true;
}

/*
 *----------------------------------------------------------------------
 *
 * DoWindowActivate --
 *
 *	Idle handler that calls GenerateActivateEvents().
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Additional events may be place on the Tk event queue.
 *
 *----------------------------------------------------------------------
 */

void
DoWindowActivate(
    ClientData clientData)
{
    GenerateActivateEvents(clientData, 1);
}

/*
 *----------------------------------------------------------------------
 *
 * TkMacOSXGenerateFocusEvent --
 *
 *	Given a Macintosh window activate event this function generates all
 *	the X Focus events needed by Tk.
 *
 * Results:
 *	True if event(s) are generated - false otherwise.
 *
 * Side effects:
 *	Additional events may be place on the Tk event queue.
 *
 *----------------------------------------------------------------------
 */

MODULE_SCOPE int
TkMacOSXGenerateFocusEvent(
    TkWindow *winPtr,		/* Root X window for event. */
    int activeFlag)
{
    XEvent event;

    /*
     * Don't send focus events to windows of class help or to windows with the
     * kWindowNoActivatesAttribute.
     */

    if (winPtr->wmInfoPtr && (winPtr->wmInfoPtr->macClass == kHelpWindowClass ||
	    winPtr->wmInfoPtr->attributes & kWindowNoActivatesAttribute)) {
	return false;
    }

    /*
     * Generate FocusIn and FocusOut events. This event is only sent to the
     * toplevel window.
     */

    if (activeFlag) {
	event.xany.type = FocusIn;
    } else {
	event.xany.type = FocusOut;
    }

    event.xany.serial = LastKnownRequestProcessed(Tk_Display(winPtr));
    event.xany.send_event = False;
    event.xfocus.display = Tk_Display(winPtr);
    event.xfocus.window = winPtr->window;
    event.xfocus.mode = NotifyNormal;
    event.xfocus.detail = NotifyDetailNone;

    Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
    return true;
}

/*
 *----------------------------------------------------------------------
 *
 * TkGenWMConfigureEvent --
 *
 *	Generate a ConfigureNotify event for Tk. Depending on the value of flag
 *	the values of width/height, x/y, or both may be changed.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	A ConfigureNotify event is sent to Tk.
 *
 *----------------------------------------------------------------------
 */

void
TkGenWMConfigureEvent(
    Tk_Window tkwin,
    int x, int y,
    int width, int height,
    int flags)
{
    XEvent event;
    WmInfo *wmPtr;
    TkWindow *winPtr = (TkWindow *) tkwin;

    if (tkwin == NULL) {
	return;
    }

    event.type = ConfigureNotify;
    event.xconfigure.serial = LastKnownRequestProcessed(Tk_Display(tkwin));
    event.xconfigure.send_event = False;
    event.xconfigure.display = Tk_Display(tkwin);
    event.xconfigure.event = Tk_WindowId(tkwin);
    event.xconfigure.window = Tk_WindowId(tkwin);
    event.xconfigure.border_width = winPtr->changes.border_width;
    event.xconfigure.override_redirect = winPtr->atts.override_redirect;
    if (winPtr->changes.stack_mode == Above) {
	event.xconfigure.above = winPtr->changes.sibling;
    } else {
	event.xconfigure.above = None;
    }

    if (!(flags & TK_LOCATION_CHANGED)) {
	x = Tk_X(tkwin);
	y = Tk_Y(tkwin);
    }
    if (!(flags & TK_SIZE_CHANGED)) {
	width = Tk_Width(tkwin);
	height = Tk_Height(tkwin);
    }
    event.xconfigure.x = x;
    event.xconfigure.y = y;
    event.xconfigure.width = width;
    event.xconfigure.height = height;

    if (flags & TK_MACOSX_HANDLE_EVENT_IMMEDIATELY) {
	Tk_HandleEvent(&event);
    } else {
	Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
    }

    /*
     * Update window manager information.
     */

    if (Tk_IsTopLevel(winPtr)) {
	wmPtr = winPtr->wmInfoPtr;
	if (flags & TK_LOCATION_CHANGED) {
	    wmPtr->x = x;
	    wmPtr->y = y;
	    wmPtr->flags &= ~(WM_NEGATIVE_X | WM_NEGATIVE_Y);
	}
	if ((flags & TK_SIZE_CHANGED) && !(wmPtr->flags & WM_SYNC_PENDING) &&
		((width != Tk_Width(tkwin)) || (height != Tk_Height(tkwin)))) {
	    if ((wmPtr->width == -1) && (width == winPtr->reqWidth)) {
		/*
		 * Don't set external width, since the user didn't change it
		 * from what the widgets asked for.
		 */
	    } else if (wmPtr->gridWin != NULL) {
		wmPtr->width = wmPtr->reqGridWidth
			+ (width - winPtr->reqWidth)/wmPtr->widthInc;
		if (wmPtr->width < 0) {
		    wmPtr->width = 0;
		}
	    } else {
		wmPtr->width = width;
	    }

	    if ((wmPtr->height == -1) && (height == winPtr->reqHeight)) {
		/*
		 * Don't set external height, since the user didn't change it
		 * from what the widgets asked for.
		 */
	    } else if (wmPtr->gridWin != NULL) {
		wmPtr->height = wmPtr->reqGridHeight
			+ (height - winPtr->reqHeight)/wmPtr->heightInc;
		if (wmPtr->height < 0) {
		    wmPtr->height = 0;
		}
	    } else {
		wmPtr->height = height;
	    }

	    wmPtr->configWidth = width;
	    wmPtr->configHeight = height;
	}
    }

    /*
     * Now set up the changes structure. Under X we wait for the
     * ConfigureNotify to set these values. On the Mac we know imediatly that
     * this is what we want - so we just set them. However, we need to make
     * sure the windows clipping region is marked invalid so the change is
     * visible to the subwindow.
     */

    winPtr->changes.x = x;
    winPtr->changes.y = y;
    winPtr->changes.width = width;
    winPtr->changes.height = height;
    TkMacOSXInvalClipRgns(tkwin);
}

/*
 *----------------------------------------------------------------------
 *
 * TkGenWMDestroyEvent --
 *
 *	Generate a WM Destroy event for Tk.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	A WM_PROTOCOL/WM_DELETE_WINDOW event is sent to Tk.
 *
 *----------------------------------------------------------------------
 */

void
TkGenWMDestroyEvent(
    Tk_Window tkwin)
{
    XEvent event;

    event.xany.serial = LastKnownRequestProcessed(Tk_Display(tkwin));
    event.xany.send_event = False;
    event.xany.display = Tk_Display(tkwin);

    event.xclient.window = Tk_WindowId(tkwin);
    event.xclient.type = ClientMessage;
    event.xclient.message_type = Tk_InternAtom(tkwin, "WM_PROTOCOLS");
    event.xclient.format = 32;
    event.xclient.data.l[0] = Tk_InternAtom(tkwin, "WM_DELETE_WINDOW");
    Tk_HandleEvent(&event);
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmProtocolEventProc --
 *
 *	This procedure is called by the Tk_HandleEvent whenever a ClientMessage
 *	event arrives whose type is "WM_PROTOCOLS". This procedure handles the
 *	message from the window manager in an appropriate fashion.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Depends on what sort of handler, if any, was set up for the protocol.
 *
 *----------------------------------------------------------------------
 */

void
TkWmProtocolEventProc(
    TkWindow *winPtr,		/* Window to which the event was sent. */
    XEvent *eventPtr)		/* X event. */
{
    WmInfo *wmPtr;
    ProtocolHandler *protPtr;
    Tcl_Interp *interp;
    Atom protocol;
    int result;

    wmPtr = winPtr->wmInfoPtr;
    if (wmPtr == NULL) {
	return;
    }
    protocol = (Atom) eventPtr->xclient.data.l[0];
    for (protPtr = wmPtr->protPtr; protPtr != NULL;
	    protPtr = protPtr->nextPtr) {
	if (protocol == protPtr->protocol) {
	    Tcl_Preserve(protPtr);
	    interp = protPtr->interp;
	    Tcl_Preserve(interp);
	    result = Tcl_EvalEx(interp, protPtr->command, -1, TCL_EVAL_GLOBAL);
	    if (result != TCL_OK) {
		Tcl_AddErrorInfo(interp, "\n    (command for \"");
		Tcl_AddErrorInfo(interp,
			Tk_GetAtomName((Tk_Window) winPtr, protocol));
		Tcl_AddErrorInfo(interp, "\" window manager protocol)");
		Tcl_BackgroundError(interp);
	    }
	    Tcl_Release(interp);
	    Tcl_Release(protPtr);
	    return;
	}
    }

    /*
     * No handler was present for this protocol. If this is a WM_DELETE_WINDOW
     * message then just destroy the window.
     */

    if (protocol == Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW")) {
	Tk_DestroyWindow((Tk_Window) winPtr);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_MacOSXIsAppInFront --
 *
 *	Returns 1 if this app is the foreground app.
 *
 * Results:
 *	1 if app is in front, 0 otherwise.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

int
Tk_MacOSXIsAppInFront(void)
{
    Boolean isFrontProcess = true;
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
    ProcessSerialNumber frontPsn, ourPsn = {0, kCurrentProcess};

    if (noErr == GetFrontProcess(&frontPsn)){
	SameProcess(&frontPsn, &ourPsn, &isFrontProcess);
    }
#else
    isFrontProcess = [NSRunningApplication currentApplication].active;
#endif
    return (isFrontProcess == true);
}

#pragma mark TKContentView

#import <ApplicationServices/ApplicationServices.h>

/*
 * Custom content view for use in Tk NSWindows.
 *
 * Since Tk handles all drawing of widgets, we only use the AppKit event loop
 * as a source of input events.  To do this, we overload the NSView drawRect
 * method with a method which generates Expose events for Tk but does no
 * drawing.  The redrawing operations are then done when Tk processes these
 * events.
 *
 * Earlier versions of Mac Tk used subclasses of NSView, e.g. NSButton, as the
 * basis for Tk widgets.  These would then appear as subviews of the
 * TKContentView.  To prevent the AppKit from redrawing and corrupting the Tk
 * Widgets it was necessary to use Apple private API calls.  In order to avoid
 * using private API calls, the NSView-based widgets have been replaced with
 * normal Tk widgets which draw themselves as native widgets by using the
 * HITheme API.
 *
 */

/*Restrict event processing to Expose events.*/
static Tk_RestrictAction
ExposeRestrictProc(
    ClientData arg,
    XEvent *eventPtr)
{
    return (eventPtr->type==Expose && eventPtr->xany.serial==PTR2UINT(arg)
	    ? TK_PROCESS_EVENT : TK_DEFER_EVENT);
}

/*Restrict event processing to ConfigureNotify events.*/
static Tk_RestrictAction
ConfigureRestrictProc(
    ClientData arg,
    XEvent *eventPtr)
{
    return (eventPtr->type==ConfigureNotify ? TK_PROCESS_EVENT : TK_DEFER_EVENT);
}

@implementation TKContentView(TKWindowEvent)

- (void) drawRect: (NSRect) rect
{
    const NSRect *rectsBeingDrawn;
    NSInteger rectsBeingDrawnCount;

    [self getRectsBeingDrawn:&rectsBeingDrawn count:&rectsBeingDrawnCount];

#ifdef TK_MAC_DEBUG_DRAWING
    TKLog(@"-[%@(%p) %s%@]", [self class], self, _cmd, NSStringFromRect(rect));
    [[NSColor colorWithDeviceRed:0.0 green:1.0 blue:0.0 alpha:.1] setFill];
    NSRectFillListUsingOperation(rectsBeingDrawn, rectsBeingDrawnCount,
	    NSCompositeSourceOver);
#endif


    CGFloat height = [self bounds].size.height;
    HIMutableShapeRef drawShape = HIShapeCreateMutable();

    while (rectsBeingDrawnCount--) {
	CGRect r = NSRectToCGRect(*rectsBeingDrawn++);
	r.origin.y = height - (r.origin.y + r.size.height);
	HIShapeUnionWithRect(drawShape, &r);
    }
    if (CFRunLoopGetMain() == CFRunLoopGetCurrent()) {
	[self generateExposeEvents:(HIShapeRef)drawShape];
    } else {
	[self performSelectorOnMainThread:@selector(generateExposeEvents:)
		withObject:(id)drawShape waitUntilDone:NO
		modes:[NSArray arrayWithObjects:NSRunLoopCommonModes,

			NSEventTrackingRunLoopMode, NSModalPanelRunLoopMode,
			nil]];
    }

    CFRelease(drawShape);

}

-(void) setFrameSize: (NSSize)newsize
{
    [super setFrameSize: newsize];
    if ([self inLiveResize]) {
	NSWindow *w = [self window];
	TkWindow *winPtr = TkMacOSXGetTkWindow(w);
	Tk_Window tkwin = (Tk_Window) winPtr;
	unsigned int width = (unsigned int)newsize.width;
	unsigned int height=(unsigned int)newsize.height;
	ClientData oldArg;
    	Tk_RestrictProc *oldProc;

	/* This can be called from outside the Tk event loop.
	 * Since it calls Tcl_DoOneEvent, we need to make sure we
	 * don't clobber the AutoreleasePool set up by the caller.
	 */
	[NSApp setPoolProtected:YES];

	/*
	 * Try to prevent flickers and flashes.
	 */
	[w disableFlushWindow];
	NSDisableScreenUpdates();

	/* Disable Tk drawing until the window has been completely configured.*/
	TkMacOSXSetDrawingEnabled(winPtr, 0);

	 /* Generate and handle a ConfigureNotify event for the new size.*/
	TkGenWMConfigureEvent(tkwin, Tk_X(tkwin), Tk_Y(tkwin), width, height,
			      TK_SIZE_CHANGED | TK_MACOSX_HANDLE_EVENT_IMMEDIATELY);
    	oldProc = Tk_RestrictEvents(ConfigureRestrictProc, NULL, &oldArg);
	while (Tk_DoOneEvent(TK_X_EVENTS|TK_DONT_WAIT)) {}
    	Tk_RestrictEvents(oldProc, oldArg, &oldArg);

	/* Now that Tk has configured all subwindows we can create the clip regions. */
	TkMacOSXSetDrawingEnabled(winPtr, 1);
	TkMacOSXInvalClipRgns(tkwin);
	TkMacOSXUpdateClipRgn(winPtr);

	 /* Finally, generate and process expose events to redraw the window. */
	HIRect bounds = NSRectToCGRect([self bounds]);
	HIShapeRef shape = HIShapeCreateWithRect(&bounds);
	[self generateExposeEvents: shape];
	while (Tk_DoOneEvent(TK_ALL_EVENTS|TK_DONT_WAIT)) {}
	[w enableFlushWindow];
	[w flushWindowIfNeeded];
	NSEnableScreenUpdates();
	[NSApp setPoolProtected:NO];
    }
}

/*
 * As insurance against bugs that might cause layout glitches during a live
 * resize, we redraw the window one more time at the end of the resize
 * operation.
 */

- (void)viewDidEndLiveResize
{
    HIRect bounds = NSRectToCGRect([self bounds]);
    HIShapeRef shape = HIShapeCreateWithRect(&bounds);
    [super viewDidEndLiveResize];
    [self generateExposeEvents: shape];

}

/* Core method of this class: generates expose events for redrawing.
 * Whereas drawRect is intended to be called only from the Appkit event
 * loop, this can be called from Tk.  If the Tcl_ServiceMode is set to
 * TCL_SERVICE_ALL then the expose events will be immediately removed
 * from the Tcl event loop and processed.  Typically, they should be queued,
 * however.
 */
- (void) generateExposeEvents: (HIShapeRef) shape
{
    [self generateExposeEvents:shape childrenOnly:0];
}

- (void) generateExposeEvents: (HIShapeRef) shape
		 childrenOnly: (int) childrenOnly
{
    TkWindow *winPtr = TkMacOSXGetTkWindow([self window]);
    unsigned long serial;
    CGRect updateBounds;
    int updatesNeeded;

    if (!winPtr) {
		return;
    }

    /* Generate Tk Expose events. */
    HIShapeGetBounds(shape, &updateBounds);
    /* All of these events will share the same serial number. */
    serial = LastKnownRequestProcessed(Tk_Display(winPtr));
    updatesNeeded = GenerateUpdates(shape, &updateBounds, winPtr);

    /* Process the Expose events if the service mode is TCL_SERVICE_ALL */
    if (updatesNeeded && Tcl_GetServiceMode() == TCL_SERVICE_ALL) {
	ClientData oldArg;
    	Tk_RestrictProc *oldProc = Tk_RestrictEvents(ExposeRestrictProc,
						     UINT2PTR(serial), &oldArg);
    	while (Tcl_ServiceEvent(TCL_WINDOW_EVENTS)) {}
    	Tk_RestrictEvents(oldProc, oldArg, &oldArg);
    }
}

/*
 * This is no-op on 10.7 and up because Apple has removed this widget,
 * but we are leaving it here for backwards compatibility.
 */
- (void) tkToolbarButton: (id) sender
{
#ifdef TK_MAC_DEBUG_EVENTS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd);
#endif
    XVirtualEvent event;
    int x, y;
    TkWindow *winPtr = TkMacOSXGetTkWindow([self window]);
    Tk_Window tkwin = (Tk_Window) winPtr;
    bzero(&event, sizeof(XVirtualEvent));
    event.type = VirtualEvent;
    event.serial = LastKnownRequestProcessed(Tk_Display(tkwin));
    event.send_event = false;
    event.display = Tk_Display(tkwin);
    event.event = Tk_WindowId(tkwin);
    event.root = XRootWindow(Tk_Display(tkwin), 0);
    event.subwindow = None;
    event.time = TkpGetMS();
    XQueryPointer(NULL, winPtr->window, NULL, NULL,
	    &event.x_root, &event.y_root, &x, &y, &event.state);
    Tk_TopCoordsToWindow(tkwin, x, y, &event.x, &event.y);
    event.same_screen = true;
    event.name = Tk_GetUid("ToolbarButton");
    Tk_QueueWindowEvent((XEvent *) &event, TCL_QUEUE_TAIL);
}

- (BOOL) isOpaque
{
    NSWindow *w = [self window];

    if (opaqueTag) {
      return YES;
	} else {

     return (w && (([w styleMask] & NSTexturedBackgroundWindowMask) ||
    	    ![w isOpaque]) ? NO : YES);
    }
}

- (BOOL) wantsDefaultClipping
{
    return NO;
}

- (BOOL) acceptsFirstResponder
{
    return YES;
}

- (void) keyDown: (NSEvent *) theEvent
{
#ifdef TK_MAC_DEBUG_EVENTS
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, theEvent);
#endif
}

@end

/*
 * Local Variables:
 * mode: objc
 * c-basic-offset: 4
 * fill-column: 79
 * coding: utf-8
 * End:
 */