summaryrefslogtreecommitdiffstats
path: root/generic/tkInt.h
blob: 51bc8962bf84b2c9c593c84e9c8521a6c6ef4112 (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
/*
 * tkInt.h --
 *
 *	Declarations for things used internally by the Tk functions but not
 *	exported outside the module.
 *
 * Copyright (c) 1990-1994 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 * Copyright (c) 1998 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#ifndef _TKINT
#define _TKINT

#ifndef _TKPORT
#include "tkPort.h"
#endif

/*
 * Ensure WORDS_BIGENDIAN is defined correctly:
 * Needs to happen here in addition to configure to work with fat compiles on
 * Darwin (where configure runs only once for multiple architectures).
 */

#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
#    include <sys/types.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#    include <sys/param.h>
#endif
#ifdef BYTE_ORDER
#    ifdef BIG_ENDIAN
#	 if BYTE_ORDER == BIG_ENDIAN
#	     undef WORDS_BIGENDIAN
#	     define WORDS_BIGENDIAN 1
#	 endif
#    endif
#    ifdef LITTLE_ENDIAN
#	 if BYTE_ORDER == LITTLE_ENDIAN
#	     undef WORDS_BIGENDIAN
#	 endif
#    endif
#endif

/*
 * Used to tag functions that are only to be visible within the module being
 * built and not outside it (where this is supported by the linker).
 */

#ifndef MODULE_SCOPE
#   ifdef __cplusplus
#	define MODULE_SCOPE extern "C"
#   else
#	define MODULE_SCOPE extern
#   endif
#endif

/*
 * Macros used to cast between pointers and integers (e.g. when storing an int
 * in ClientData), on 64-bit architectures they avoid gcc warning about "cast
 * to/from pointer from/to integer of different size".
 */

#if !defined(INT2PTR) && !defined(PTR2INT)
#   if defined(HAVE_INTPTR_T) || defined(intptr_t)
#	define INT2PTR(p) ((void*)(intptr_t)(p))
#	define PTR2INT(p) ((int)(intptr_t)(p))
#   else
#	define INT2PTR(p) ((void*)(p))
#	define PTR2INT(p) ((int)(p))
#   endif
#endif
#if !defined(UINT2PTR) && !defined(PTR2UINT)
#   if defined(HAVE_UINTPTR_T) || defined(uintptr_t)
#	define UINT2PTR(p) ((void*)(uintptr_t)(p))
#	define PTR2UINT(p) ((unsigned int)(uintptr_t)(p))
#   else
#	define UINT2PTR(p) ((void*)(p))
#	define PTR2UINT(p) ((unsigned int)(p))
#   endif
#endif

/*
 * Opaque type declarations:
 */

typedef struct TkColormap TkColormap;
typedef struct TkFontAttributes TkFontAttributes;
typedef struct TkGrabEvent TkGrabEvent;
typedef struct TkpCursor_ *TkpCursor;
typedef struct TkRegion_ *TkRegion;
typedef struct TkStressedCmap TkStressedCmap;
typedef struct TkBindInfo_ *TkBindInfo;
typedef struct Busy *TkBusy;

/*
 * One of the following structures is maintained for each cursor in use in the
 * system. This structure is used by tkCursor.c and the various system-
 * specific cursor files.
 */

typedef struct TkCursor {
    Tk_Cursor cursor;		/* System specific identifier for cursor. */
    Display *display;		/* Display containing cursor. Needed for
				 * disposal and retrieval of cursors. */
    int resourceRefCount;	/* Number of active uses of this cursor (each
				 * active use corresponds to a call to
				 * Tk_AllocPreserveFromObj or Tk_Preserve). If
				 * this count is 0, then this structure is no
				 * longer valid and it isn't present in a hash
				 * table: it is being kept around only because
				 * there are objects referring to it. The
				 * structure is freed when resourceRefCount
				 * and objRefCount are both 0. */
    int objRefCount;		/* Number of Tcl objects that reference this
				 * structure.. */
    Tcl_HashTable *otherTable;	/* Second table (other than idTable) used to
				 * index this entry. */
    Tcl_HashEntry *hashPtr;	/* Entry in otherTable for this structure
				 * (needed when deleting). */
    Tcl_HashEntry *idHashPtr;	/* Entry in idTable for this structure (needed
				 * when deleting). */
    struct TkCursor *nextPtr;	/* Points to the next TkCursor structure with
				 * the same name. Cursors with the same name
				 * but different displays are chained together
				 * off a single hash table entry. */
} TkCursor;

/*
 * The following structure is kept one-per-TkDisplay to maintain information
 * about the caret (cursor location) on this display. This is used to dictate
 * global focus location (Windows Accessibility guidelines) and to position
 * the IME or XIM over-the-spot window.
 */

typedef struct TkCaret {
    struct TkWindow *winPtr;	/* The window on which we requested caret
				 * placement. */
    int x;			/* Relative x coord of the caret. */
    int y;			/* Relative y coord of the caret. */
    int height;			/* Specified height of the window. */
} TkCaret;

/*
 * One of the following structures is maintained for each display containing a
 * window managed by Tk. In part, the structure is used to store thread-
 * specific data, since each thread will have its own TkDisplay structure.
 */

typedef struct TkDisplay {
    Display *display;		/* Xlib's info about display. */
    struct TkDisplay *nextPtr;	/* Next in list of all displays. */
    char *name;			/* Name of display (with any screen identifier
				 * removed). Malloc-ed. */
    Time lastEventTime;		/* Time of last event received for this
				 * display. */

    /*
     * Information used primarily by tk3d.c:
     */

    int borderInit;		/* 0 means borderTable needs initializing. */
    Tcl_HashTable borderTable;	/* Maps from color name to TkBorder
				 * structure. */

    /*
     * Information used by tkAtom.c only:
     */

    int atomInit;		/* 0 means stuff below hasn't been initialized
				 * yet. */
    Tcl_HashTable nameTable;	/* Maps from names to Atom's. */
    Tcl_HashTable atomTable;	/* Maps from Atom's back to names. */

    /*
     * Information used primarily by tkBind.c:
     */

    int bindInfoStale;		/* Non-zero means the variables in this part
				 * of the structure are potentially incorrect
				 * and should be recomputed. */
    unsigned int modeModMask;	/* Has one bit set to indicate the modifier
				 * corresponding to "mode shift". If no such
				 * modifier, than this is zero. */
    unsigned int metaModMask;	/* Has one bit set to indicate the modifier
				 * corresponding to the "Meta" key. If no such
				 * modifier, then this is zero. */
    unsigned int altModMask;	/* Has one bit set to indicate the modifier
				 * corresponding to the "Meta" key. If no such
				 * modifier, then this is zero. */
    enum {LU_IGNORE, LU_CAPS, LU_SHIFT} lockUsage;
				/* Indicates how to interpret lock
				 * modifier. */
    int numModKeyCodes;		/* Number of entries in modKeyCodes array
				 * below. */
    KeyCode *modKeyCodes;	/* Pointer to an array giving keycodes for all
				 * of the keys that have modifiers associated
				 * with them. Malloc'ed, but may be NULL. */

    /*
     * Information used by tkBitmap.c only:
     */

    int bitmapInit;		/* 0 means tables above need initializing. */
    int bitmapAutoNumber;	/* Used to number bitmaps. */
    Tcl_HashTable bitmapNameTable;
				/* Maps from name of bitmap to the first
				 * TkBitmap record for that name. */
    Tcl_HashTable bitmapIdTable;/* Maps from bitmap id to the TkBitmap
				 * structure for the bitmap. */
    Tcl_HashTable bitmapDataTable;
				/* Used by Tk_GetBitmapFromData to map from a
				 * collection of in-core data about a bitmap
				 * to a reference giving an automatically-
				 * generated name for the bitmap. */

    /*
     * Information used by tkCanvas.c only:
     */

    int numIdSearches;
    int numSlowSearches;

    /*
     * Used by tkColor.c only:
     */

    int colorInit;		/* 0 means color module needs initializing. */
    TkStressedCmap *stressPtr;	/* First in list of colormaps that have filled
				 * up, so we have to pick an approximate
				 * color. */
    Tcl_HashTable colorNameTable;
				/* Maps from color name to TkColor structure
				 * for that color. */
    Tcl_HashTable colorValueTable;
				/* Maps from integer RGB values to TkColor
				 * structures. */

    /*
     * Used by tkCursor.c only:
     */

    int cursorInit;		/* 0 means cursor module need initializing. */
    Tcl_HashTable cursorNameTable;
				/* Maps from a string name to a cursor to the
				 * TkCursor record for the cursor. */
    Tcl_HashTable cursorDataTable;
				/* Maps from a collection of in-core data
				 * about a cursor to a TkCursor structure. */
    Tcl_HashTable cursorIdTable;
				/* Maps from a cursor id to the TkCursor
				 * structure for the cursor. */
    char cursorString[20];	/* Used to store a cursor id string. */
    Font cursorFont;		/* Font to use for standard cursors. None
				 * means font not loaded yet. */

    /*
     * Information used by tkError.c only:
     */

    struct TkErrorHandler *errorPtr;
				/* First in list of error handlers for this
				 * display. NULL means no handlers exist at
				 * present. */
    int deleteCount;		/* Counts # of handlers deleted since last
				 * time inactive handlers were garbage-
				 * collected. When this number gets big,
				 * handlers get cleaned up. */

    /*
     * Used by tkEvent.c only:
     */

    struct TkWindowEvent *delayedMotionPtr;
				/* Points to a malloc-ed motion event whose
				 * processing has been delayed in the hopes
				 * that another motion event will come along
				 * right away and we can merge the two of them
				 * together. NULL means that there is no
				 * delayed motion event. */

    /*
     * Information used by tkFocus.c only:
     */

    int focusDebug;		/* 1 means collect focus debugging
				 * statistics. */
    struct TkWindow *implicitWinPtr;
				/* If the focus arrived at a toplevel window
				 * implicitly via an Enter event (rather than
				 * via a FocusIn event), this points to the
				 * toplevel window. Otherwise it is NULL. */
    struct TkWindow *focusPtr;	/* Points to the window on this display that
				 * should be receiving keyboard events. When
				 * multiple applications on the display have
				 * the focus, this will refer to the innermost
				 * window in the innermost application. This
				 * information isn't used on Windows, but it's
				 * needed on the Mac, and also on X11 when XIM
				 * processing is being done. */

    /*
     * Information used by tkGC.c only:
     */

    Tcl_HashTable gcValueTable; /* Maps from a GC's values to a TkGC structure
				 * describing a GC with those values. */
    Tcl_HashTable gcIdTable;    /* Maps from a GC to a TkGC. */
    int gcInit;			/* 0 means the tables below need
				 * initializing. */

    /*
     * Information used by tkGeometry.c only:
     */

    Tcl_HashTable maintainHashTable;
				/* Hash table that maps from a master's
				 * Tk_Window token to a list of slaves managed
				 * by that master. */
    int geomInit;

    /*
     * Information used by tkGet.c only:
     */

    Tcl_HashTable uidTable;	/* Stores all Tk_Uid used in a thread. */
    int uidInit;		/* 0 means uidTable needs initializing. */

    /*
     * Information used by tkGrab.c only:
     */

    struct TkWindow *grabWinPtr;/* Window in which the pointer is currently
				 * grabbed, or NULL if none. */
    struct TkWindow *eventualGrabWinPtr;
				/* Value that grabWinPtr will have once the
				 * grab event queue (below) has been
				 * completely emptied. */
    struct TkWindow *buttonWinPtr;
				/* Window in which first mouse button was
				 * pressed while grab was in effect, or NULL
				 * if no such press in effect. */
    struct TkWindow *serverWinPtr;
				/* If no application contains the pointer then
				 * this is NULL. Otherwise it contains the
				 * last window for which we've gotten an Enter
				 * or Leave event from the server (i.e. the
				 * last window known to have contained the
				 * pointer). Doesn't reflect events that were
				 * synthesized in tkGrab.c. */
    TkGrabEvent *firstGrabEventPtr;
				/* First in list of enter/leave events
				 * synthesized by grab code. These events must
				 * be processed in order before any other
				 * events are processed. NULL means no such
				 * events. */
    TkGrabEvent *lastGrabEventPtr;
				/* Last in list of synthesized events, or NULL
				 * if list is empty. */
    int grabFlags;		/* Miscellaneous flag values. See definitions
				 * in tkGrab.c. */

    /*
     * Information used by tkGrid.c only:
     */

    int gridInit;		/* 0 means table below needs initializing. */
    Tcl_HashTable gridHashTable;/* Maps from Tk_Window tokens to corresponding
				 * Grid structures. */

    /*
     * Information used by tkImage.c only:
     */

    int imageId;		/* Value used to number image ids. */

    /*
     * Information used by tkMacWinMenu.c only:
     */

    int postCommandGeneration;

    /*
     * Information used by tkPack.c only.
     */

    int packInit;		/* 0 means table below needs initializing. */
    Tcl_HashTable packerHashTable;
				/* Maps from Tk_Window tokens to corresponding
				 * Packer structures. */

    /*
     * Information used by tkPlace.c only.
     */

    int placeInit;		/* 0 means tables below need initializing. */
    Tcl_HashTable masterTable;	/* Maps from Tk_Window toke to the Master
				 * structure for the window, if it exists. */
    Tcl_HashTable slaveTable;	/* Maps from Tk_Window toke to the Slave
				 * structure for the window, if it exists. */

    /*
     * Information used by tkSelect.c and tkClipboard.c only:
     */

    struct TkSelectionInfo *selectionInfoPtr;
				/* First in list of selection information
				 * records. Each entry contains information
				 * about the current owner of a particular
				 * selection on this display. */
    Atom multipleAtom;		/* Atom for MULTIPLE. None means selection
				 * stuff isn't initialized. */
    Atom incrAtom;		/* Atom for INCR. */
    Atom targetsAtom;		/* Atom for TARGETS. */
    Atom timestampAtom;		/* Atom for TIMESTAMP. */
    Atom textAtom;		/* Atom for TEXT. */
    Atom compoundTextAtom;	/* Atom for COMPOUND_TEXT. */
    Atom applicationAtom;	/* Atom for TK_APPLICATION. */
    Atom windowAtom;		/* Atom for TK_WINDOW. */
    Atom clipboardAtom;		/* Atom for CLIPBOARD. */
    Atom utf8Atom;		/* Atom for UTF8_STRING. */

    Tk_Window clipWindow;	/* Window used for clipboard ownership and to
				 * retrieve selections between processes. NULL
				 * means clipboard info hasn't been
				 * initialized. */
    int clipboardActive;	/* 1 means we currently own the clipboard
				 * selection, 0 means we don't. */
    struct TkMainInfo *clipboardAppPtr;
				/* Last application that owned clipboard. */
    struct TkClipboardTarget *clipTargetPtr;
				/* First in list of clipboard type information
				 * records. Each entry contains information
				 * about the buffers for a given selection
				 * target. */

    /*
     * Information used by tkSend.c only:
     */

    Tk_Window commTkwin;	/* Window used for communication between
				 * interpreters during "send" commands. NULL
				 * means send info hasn't been initialized
				 * yet. */
    Atom commProperty;		/* X's name for comm property. */
    Atom registryProperty;	/* X's name for property containing registry
				 * of interpreter names. */
    Atom appNameProperty;	/* X's name for property used to hold the
				 * application name on each comm window. */

    /*
     * Information used by tkUnixWm.c and tkWinWm.c only:
     */

    struct TkWmInfo *firstWmPtr;/* Points to first top-level window. */
    struct TkWmInfo *foregroundWmPtr;
				/* Points to the foreground window. */

    /*
     * Information used by tkVisual.c only:
     */

    TkColormap *cmapPtr;	/* First in list of all non-default colormaps
				 * allocated for this display. */

    /*
     * Miscellaneous information:
     */

#ifdef TK_USE_INPUT_METHODS
    XIM inputMethod;		/* Input method for this display. */
    XIMStyle inputStyle;	/* Input style selected for this display. */
    XFontSet inputXfs;		/* XFontSet cached for over-the-spot XIM. */
#endif /* TK_USE_INPUT_METHODS */
    Tcl_HashTable winTable;	/* Maps from X window ids to TkWindow ptrs. */

    int refCount;		/* Reference count of how many Tk applications
				 * are using this display. Used to clean up
				 * the display when we no longer have any Tk
				 * applications using it. */

    /*
     * The following field were all added for Tk8.3
     */

    int mouseButtonState;	/* Current mouse button state for this
				 * display. */
    Window mouseButtonWindow;	/* Window the button state was set in, added
				 * in Tk 8.4. */
    Tk_Window warpWindow;
    Tk_Window warpMainwin;	/* For finding the root window for warping
				 * purposes. */
    int warpX;
    int warpY;

    /*
     * The following field(s) were all added for Tk8.4
     */

    unsigned int flags;		/* Various flag values: these are all defined
				 * in below. */
    TkCaret caret;		/* Information about the caret for this
				 * display. This is not a pointer. */

    int iconDataSize;		/* Size of default iconphoto image data. */
    unsigned char *iconDataPtr;	/* Default iconphoto image data, if set. */
} TkDisplay;

/*
 * Flag values for TkDisplay flags.
 *  TK_DISPLAY_COLLAPSE_MOTION_EVENTS:	(default on)
 *	Indicates that we should collapse motion events on this display
 *  TK_DISPLAY_USE_IM:			(default on, set via tk.tcl)
 *	Whether to use input methods for this display
 *  TK_DISPLAY_WM_TRACING:		(default off)
 *	Whether we should do wm tracing on this display.
 *  TK_DISPLAY_IN_WARP:			(default off)
 *	Indicates that we are in a pointer warp
 */

#define TK_DISPLAY_COLLAPSE_MOTION_EVENTS	(1 << 0)
#define TK_DISPLAY_USE_IM			(1 << 1)
#define TK_DISPLAY_WM_TRACING			(1 << 3)
#define TK_DISPLAY_IN_WARP			(1 << 4)

/*
 * One of the following structures exists for each error handler created by a
 * call to Tk_CreateErrorHandler. The structure is managed by tkError.c.
 */

typedef struct TkErrorHandler {
    TkDisplay *dispPtr;		/* Display to which handler applies. */
    unsigned long firstRequest;	/* Only errors with serial numbers >= to this
				 * are considered. */
    unsigned long lastRequest;	/* Only errors with serial numbers <= to this
				 * are considered. This field is filled in
				 * when XUnhandle is called. -1 means
				 * XUnhandle hasn't been called yet. */
    int error;			/* Consider only errors with this error_code
				 * (-1 means consider all errors). */
    int request;		/* Consider only errors with this major
				 * request code (-1 means consider all major
				 * codes). */
    int minorCode;		/* Consider only errors with this minor
				 * request code (-1 means consider all minor
				 * codes). */
    Tk_ErrorProc *errorProc;	/* Function to invoke when a matching error
				 * occurs. NULL means just ignore errors. */
    ClientData clientData;	/* Arbitrary value to pass to errorProc. */
    struct TkErrorHandler *nextPtr;
				/* Pointer to next older handler for this
				 * display, or NULL for end of list. */
} TkErrorHandler;

/*
 * One of the following structures exists for each event handler created by
 * calling Tk_CreateEventHandler. This information is used by tkEvent.c only.
 */

typedef struct TkEventHandler {
    unsigned long mask;		/* Events for which to invoke proc. */
    Tk_EventProc *proc;		/* Function to invoke when an event in mask
				 * occurs. */
    ClientData clientData;	/* Argument to pass to proc. */
    struct TkEventHandler *nextPtr;
				/* Next in list of handlers associated with
				 * window (NULL means end of list). */
} TkEventHandler;

/*
 * Tk keeps one of the following data structures for each main window (created
 * by a call to TkCreateMainWindow). It stores information that is shared by
 * all of the windows associated with a particular main window.
 */

typedef struct TkMainInfo {
    int refCount;		/* Number of windows whose "mainPtr" fields
				 * point here. When this becomes zero, can
				 * free up the structure (the reference count
				 * is zero because windows can get deleted in
				 * almost any order; the main window isn't
				 * necessarily the last one deleted). */
    struct TkWindow *winPtr;	/* Pointer to main window. */
    Tcl_Interp *interp;		/* Interpreter associated with application. */
    Tcl_HashTable nameTable;	/* Hash table mapping path names to TkWindow
				 * structs for all windows related to this
				 * main window. Managed by tkWindow.c. */
    long deletionEpoch;		/* Incremented by window deletions. */
    Tk_BindingTable bindingTable;
				/* Used in conjunction with "bind" command to
				 * bind events to Tcl commands. */
    TkBindInfo bindInfo;	/* Information used by tkBind.c on a per
				 * application basis. */
    struct TkFontInfo *fontInfoPtr;
				/* Information used by tkFont.c on a per
				 * application basis. */

    /*
     * Information used only by tkFocus.c and tk*Embed.c:
     */

    struct TkToplevelFocusInfo *tlFocusPtr;
				/* First in list of records containing focus
				 * information for each top-level in the
				 * application. Used only by tkFocus.c. */
    struct TkDisplayFocusInfo *displayFocusPtr;
				/* First in list of records containing focus
				 * information for each display that this
				 * application has ever used. Used only by
				 * tkFocus.c. */

    struct ElArray *optionRootPtr;
				/* Top level of option hierarchy for this main
				 * window. NULL means uninitialized. Managed
				 * by tkOption.c. */
    Tcl_HashTable imageTable;	/* Maps from image names to Tk_ImageMaster
				 * structures. Managed by tkImage.c. */
    int strictMotif;		/* This is linked to the tk_strictMotif global
				 * variable. */
    int alwaysShowSelection;	/* This is linked to the
				 * ::tk::AlwaysShowSelection variable. */
    struct TkMainInfo *nextPtr;	/* Next in list of all main windows managed by
				 * this process. */
    Tcl_HashTable busyTable;	/* Information used by [tk busy] command. */
} TkMainInfo;

/*
 * Tk keeps the following data structure for each of it's builtin bitmaps.
 * This structure is only used by tkBitmap.c and other platform specific
 * bitmap files.
 */

typedef struct {
    const void *source;		/* Bits for bitmap. */
    int width, height;		/* Dimensions of bitmap. */
    int native;			/* 0 means generic (X style) bitmap, 1 means
    				 * native style bitmap. */
} TkPredefBitmap;

/*
 * Tk keeps one of the following structures for each window. Some of the
 * information (like size and location) is a shadow of information managed by
 * the X server, and some is special information used here, such as event and
 * geometry management information. This information is (mostly) managed by
 * tkWindow.c. WARNING: the declaration below must be kept consistent with the
 * Tk_FakeWin structure in tk.h. If you change one, be sure to change the
 * other!
 */

typedef struct TkWindow {
    /*
     * Structural information:
     */

    Display *display;		/* Display containing window. */
    TkDisplay *dispPtr;		/* Tk's information about display for
				 * window. */
    int screenNum;		/* Index of screen for window, among all those
				 * for dispPtr. */
    Visual *visual;		/* Visual to use for window. If not default,
				 * MUST be set before X window is created. */
    int depth;			/* Number of bits/pixel. */
    Window window;		/* X's id for window. NULL means window hasn't
				 * actually been created yet, or it's been
				 * deleted. */
    struct TkWindow *childList;	/* First in list of child windows, or NULL if
				 * no children. List is in stacking order,
				 * lowest window first.*/
    struct TkWindow *lastChildPtr;
				/* Last in list of child windows (highest in
				 * stacking order), or NULL if no children. */
    struct TkWindow *parentPtr;	/* Pointer to parent window (logical parent,
				 * not necessarily X parent). NULL means
				 * either this is the main window, or the
				 * window's parent has already been deleted. */
    struct TkWindow *nextPtr;	/* Next higher sibling (in stacking order) in
				 * list of children with same parent. NULL
				 * means end of list. */
    TkMainInfo *mainPtr;	/* Information shared by all windows
				 * associated with a particular main window.
				 * NULL means this window is a rogue that is
				 * not associated with any application (at
				 * present, this only happens for the dummy
				 * windows used for "send" communication). */

    /*
     * Name and type information for the window:
     */

    char *pathName;		/* Path name of window (concatenation of all
				 * names between this window and its top-level
				 * ancestor). This is a pointer into an entry
				 * in mainPtr->nameTable. NULL means that the
				 * window hasn't been completely created
				 * yet. */
    Tk_Uid nameUid;		/* Name of the window within its parent
				 * (unique within the parent). */
    Tk_Uid classUid;		/* Class of the window. NULL means window
				 * hasn't been given a class yet. */

    /*
     * Geometry and other attributes of window. This information may not be
     * updated on the server immediately; stuff that hasn't been reflected in
     * the server yet is called "dirty". At present, information can be dirty
     * only if the window hasn't yet been created.
     */

    XWindowChanges changes;	/* Geometry and other info about window. */
    unsigned int dirtyChanges;	/* Bits indicate fields of "changes" that are
				 * dirty. */
    XSetWindowAttributes atts;	/* Current attributes of window. */
    unsigned long dirtyAtts;	/* Bits indicate fields of "atts" that are
				 * dirty. */

    unsigned int flags;		/* Various flag values: these are all defined
				 * in tk.h (confusing, but they're needed
				 * there for some query macros). */

    /*
     * Information kept by the event manager (tkEvent.c):
     */

    TkEventHandler *handlerList;/* First in list of event handlers declared
				 * for this window, or NULL if none. */
#ifdef TK_USE_INPUT_METHODS
    XIC inputContext;		/* XIM input context. */
#endif /* TK_USE_INPUT_METHODS */

    /*
     * Information used for event bindings (see "bind" and "bindtags" commands
     * in tkCmds.c):
     */

    ClientData *tagPtr;		/* Points to array of tags used for bindings
				 * on this window. Each tag is a Tk_Uid.
				 * Malloc'ed. NULL means no tags. */
    int numTags;		/* Number of tags at *tagPtr. */

    /*
     * Information used by tkOption.c to manage options for the window.
     */

    int optionLevel;		/* -1 means no option information is currently
				 * cached for this window. Otherwise this
				 * gives the level in the option stack at
				 * which info is cached. */
    /*
     * Information used by tkSelect.c to manage the selection.
     */

    struct TkSelHandler *selHandlerList;
				/* First in list of handlers for returning the
				 * selection in various forms. */

    /*
     * Information used by tkGeometry.c for geometry management.
     */

    const Tk_GeomMgr *geomMgrPtr;
				/* Information about geometry manager for this
				 * window. */
    ClientData geomData;	/* Argument for geometry manager functions. */
    int reqWidth, reqHeight;	/* Arguments from last call to
				 * Tk_GeometryRequest, or 0's if
				 * Tk_GeometryRequest hasn't been called. */
    int internalBorderLeft;	/* Width of internal border of window (0 means
				 * no internal border). Geometry managers
				 * should not normally place children on top
				 * of the border. Fields for the other three
				 * sides are found below. */

    /*
     * Information maintained by tkWm.c for window manager communication.
     */

    struct TkWmInfo *wmInfoPtr;	/* For top-level windows (and also for special
				 * Unix menubar and wrapper windows), points
				 * to structure with wm-related info (see
				 * tkWm.c). For other windows, this is
				 * NULL. */

    /*
     * Information used by widget classes.
     */

    const Tk_ClassProcs *classProcsPtr;
    ClientData instanceData;

    /*
     * Platform specific information private to each port.
     */

    struct TkWindowPrivate *privatePtr;

    /*
     * More information used by tkGeometry.c for geometry management.
     */

    /* The remaining fields of internal border. */
    int internalBorderRight;
    int internalBorderTop;
    int internalBorderBottom;

    int minReqWidth;		/* Minimum requested width. */
    int minReqHeight;		/* Minimum requested height. */
    char *geometryMaster;
} TkWindow;

/*
 * Real definition of some events. Note that these events come from outside
 * but have internally generated pieces added to them.
 */

typedef struct {
    XKeyEvent keyEvent;		/* The real event from X11. */
    char *charValuePtr;		/* A pointer to a string that holds the key's
				 * %A substitution text (before backslash
				 * adding), or NULL if that has not been
				 * computed yet. If non-NULL, this string was
				 * allocated with ckalloc(). */
    int charValueLen;		/* Length of string in charValuePtr when that
				 * is non-NULL. */
    KeySym keysym;		/* Key symbol computed after input methods
				 * have been invoked */
} TkKeyEvent;

/*
 * Flags passed to TkpMakeMenuWindow's 'transient' argument.
 */

#define TK_MAKE_MENU_TEAROFF	0	/* Only non-transient case. */
#define TK_MAKE_MENU_POPUP	1
#define TK_MAKE_MENU_DROPDOWN	2

/*
 * The following structure is used with TkMakeEnsemble to create ensemble
 * commands and optionally to create sub-ensembles.
 */

typedef struct TkEnsemble {
    const char *name;
    Tcl_ObjCmdProc *proc;
    const struct TkEnsemble *subensemble;
} TkEnsemble;

/*
 * The following structure is used as a two way map between integers and
 * strings, usually to map between an internal C representation and the
 * strings used in Tcl.
 */

typedef struct TkStateMap {
    int numKey;			/* Integer representation of a value. */
    const char *strKey;		/* String representation of a value. */
} TkStateMap;

/*
 * This structure is used by the Mac and Window porting layers as the internal
 * representation of a clip_mask in a GC.
 */

typedef struct TkpClipMask {
    int type;			/* TKP_CLIP_PIXMAP or TKP_CLIP_REGION. */
    union {
	Pixmap pixmap;
	TkRegion region;
    } value;
} TkpClipMask;

#define TKP_CLIP_PIXMAP 0
#define TKP_CLIP_REGION 1

/*
 * Return values from TkGrabState:
 */

#define TK_GRAB_NONE		0
#define TK_GRAB_IN_TREE		1
#define TK_GRAB_ANCESTOR	2
#define TK_GRAB_EXCLUDED	3

/*
 * Additional flag for TkpMeasureCharsInContext. Coordinate with other flags
 * for this routine, but don't make public until TkpMeasureCharsInContext is
 * made public, too.
 */

#define TK_ISOLATE_END		32

/*
 * The macro below is used to modify a "char" value (e.g. by casting it to an
 * unsigned character) so that it can be used safely with macros such as
 * isspace().
 */

#define UCHAR(c) ((unsigned char) (c))

/*
 * The following symbol is used in the mode field of FocusIn events generated
 * by an embedded application to request the input focus from its container.
 */

#define EMBEDDED_APP_WANTS_FOCUS (NotifyNormal + 20)

/*
 * The following special modifier mask bits are defined, to indicate logical
 * modifiers such as Meta and Alt that may float among the actual modifier
 * bits.
 */

#define META_MASK	(AnyModifier<<1)
#define ALT_MASK	(AnyModifier<<2)
#define EXTENDED_MASK	(AnyModifier<<3)

/*
 * Object types not declared in tkObj.c need to be mentioned here so they can
 * be properly registered with Tcl:
 */

MODULE_SCOPE const Tcl_ObjType tkBorderObjType;
MODULE_SCOPE const Tcl_ObjType tkBitmapObjType;
MODULE_SCOPE const Tcl_ObjType tkColorObjType;
MODULE_SCOPE const Tcl_ObjType tkCursorObjType;
MODULE_SCOPE const Tcl_ObjType tkFontObjType;
MODULE_SCOPE const Tcl_ObjType tkStateKeyObjType;
MODULE_SCOPE const Tcl_ObjType tkTextIndexType;

/*
 * Miscellaneous variables shared among Tk modules but not exported to the
 * outside world:
 */

MODULE_SCOPE const Tk_SmoothMethod tkBezierSmoothMethod;
MODULE_SCOPE Tk_ImageType	tkBitmapImageType;
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtGIF;
MODULE_SCOPE void		(*tkHandleEventProc) (XEvent* eventPtr);
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtPNG;
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtPPM;
MODULE_SCOPE TkMainInfo		*tkMainWindowList;
MODULE_SCOPE Tk_ImageType	tkPhotoImageType;
MODULE_SCOPE Tcl_HashTable	tkPredefBitmapTable;

/*
 * The definition of pi, at least from the perspective of double-precision
 * floats.
 */

#ifndef PI
#ifdef M_PI
#define PI	M_PI
#else
#define PI	3.14159265358979323846
#endif
#endif

/*
 * Support for Clang Static Analyzer <http://clang-analyzer.llvm.org>
 */

#if defined(PURIFY) && defined(__clang__)
#if __has_feature(attribute_analyzer_noreturn) && \
	!defined(Tcl_Panic) && defined(Tcl_Panic_TCL_DECLARED)
void Tcl_Panic(const char *, ...) __attribute__((analyzer_noreturn));
#endif
#if !defined(CLANG_ASSERT)
#include <assert.h>
#define CLANG_ASSERT(x) assert(x)
#endif
#elif !defined(CLANG_ASSERT)
#define CLANG_ASSERT(x)
#endif /* PURIFY && __clang__ */

/*
 * The following magic value is stored in the "send_event" field of FocusIn
 * and FocusOut events. This allows us to separate "real" events coming from
 * the server from those that we generated.
 */

#define GENERATED_FOCUS_EVENT_MAGIC	((Bool) 0x547321ac)

/*
 * Exported internals.
 */

#include "tkIntDecls.h"

/*
 * Themed widget set init function:
 */

MODULE_SCOPE int	Ttk_Init(Tcl_Interp *interp);

/*
 * Internal functions shared among Tk modules but not exported to the outside
 * world:
 */

MODULE_SCOPE int	Tk_BellObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_BindObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_BindtagsObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_BusyObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_ButtonObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_CanvasObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int argc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_CheckbuttonObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_ClipboardObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_ChooseColorObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_ChooseDirectoryObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_DestroyObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_EntryObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_EventObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_FrameObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_FocusObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_FontObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_GetOpenFileObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_GetSaveFileObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_GrabObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_GridObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_ImageObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_LabelObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_LabelframeObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_ListboxObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_LowerObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_MenubuttonObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_MessageBoxObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_MessageObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_PanedWindowObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_OptionObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_PackObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_PlaceObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_RadiobuttonObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_RaiseObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_ScaleObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_ScrollbarCmd(ClientData clientData,
			    Tcl_Interp *interp, int argc, const char **argv);
MODULE_SCOPE int	Tk_SelectionObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_SendCmd(ClientData clientData,
			    Tcl_Interp *interp, int argc, const char **argv);
MODULE_SCOPE int	Tk_SendObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_SpinboxObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_TextObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_TkwaitObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_ToplevelObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_UpdateObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_WinfoObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	Tk_WmObjCmd(ClientData clientData, Tcl_Interp *interp,
			    int objc, Tcl_Obj *const objv[]);

MODULE_SCOPE int	Tk_GetDoublePixelsFromObj(Tcl_Interp *interp,
			    Tk_Window tkwin, Tcl_Obj *objPtr,
			    double *doublePtr);
MODULE_SCOPE int	TkSetGeometryMaster(Tcl_Interp *interp,
			    Tk_Window tkwin, const char *master);
MODULE_SCOPE void	TkFreeGeometryMaster(Tk_Window tkwin,
			    const char *master);

MODULE_SCOPE void	TkEventInit(void);
MODULE_SCOPE void	TkRegisterObjTypes(void);
MODULE_SCOPE int	TkCreateMenuCmd(Tcl_Interp *interp);
MODULE_SCOPE int	TkDeadAppCmd(ClientData clientData,
			    Tcl_Interp *interp, int argc, const char **argv);
MODULE_SCOPE int	TkCanvasGetCoordObj(Tcl_Interp *interp,
			    Tk_Canvas canvas, Tcl_Obj *obj,
			    double *doublePtr);
MODULE_SCOPE int	TkGetDoublePixels(Tcl_Interp *interp, Tk_Window tkwin,
			    const char *string, double *doublePtr);
MODULE_SCOPE int	TkPostscriptImage(Tcl_Interp *interp, Tk_Window tkwin,
			    Tk_PostscriptInfo psInfo, XImage *ximage,
			    int x, int y, int width, int height);
MODULE_SCOPE void       TkMapTopFrame(Tk_Window tkwin);
MODULE_SCOPE XEvent *	TkpGetBindingXEvent(Tcl_Interp *interp);
MODULE_SCOPE void	TkCreateExitHandler(Tcl_ExitProc *proc,
			    ClientData clientData);
MODULE_SCOPE void	TkDeleteExitHandler(Tcl_ExitProc *proc,
			    ClientData clientData);
MODULE_SCOPE Tcl_ExitProc	TkFinalize;
MODULE_SCOPE Tcl_ExitProc	TkFinalizeThread;
MODULE_SCOPE void	TkpBuildRegionFromAlphaData(TkRegion region,
			    unsigned x, unsigned y, unsigned width,
			    unsigned height, unsigned char *dataPtr,
			    unsigned pixelStride, unsigned lineStride);
MODULE_SCOPE void	TkPrintPadAmount(Tcl_Interp *interp,
			    const char *buffer, int pad1, int pad2);
MODULE_SCOPE int	TkParsePadAmount(Tcl_Interp *interp,
			    Tk_Window tkwin, Tcl_Obj *objPtr,
			    int *pad1Ptr, int *pad2Ptr);
MODULE_SCOPE void       TkFocusSplit(TkWindow *winPtr);
MODULE_SCOPE void       TkFocusJoin(TkWindow *winPtr);
MODULE_SCOPE int	TkpAlwaysShowSelection(Tk_Window tkwin);
MODULE_SCOPE void	TkpDrawCharsInContext(Display * display,
			    Drawable drawable, GC gc, Tk_Font tkfont,
			    const char *source, int numBytes, int rangeStart,
			    int rangeLength, int x, int y);
MODULE_SCOPE int	TkpMeasureCharsInContext(Tk_Font tkfont,
			    const char *source, int numBytes, int rangeStart,
			    int rangeLength, int maxLength, int flags,
			    int *lengthPtr);
MODULE_SCOPE void	TkUnderlineCharsInContext(Display *display,
			    Drawable drawable, GC gc, Tk_Font tkfont,
			    const char *string, int numBytes, int x, int y,
			    int firstByte, int lastByte);
MODULE_SCOPE void	TkpGetFontAttrsForChar(Tk_Window tkwin, Tk_Font tkfont,
			    Tcl_UniChar c, struct TkFontAttributes *faPtr);
MODULE_SCOPE Tcl_Obj *	TkNewWindowObj(Tk_Window tkwin);
MODULE_SCOPE void	TkpShowBusyWindow(TkBusy busy);
MODULE_SCOPE void	TkpHideBusyWindow(TkBusy busy);
MODULE_SCOPE void	TkpMakeTransparentWindowExist(Tk_Window tkwin,
			    Window parent);
MODULE_SCOPE void	TkpCreateBusy(Tk_FakeWin *winPtr, Tk_Window tkRef,
			    Window *parentPtr, Tk_Window tkParent,
			    TkBusy busy);
MODULE_SCOPE int	TkBackgroundEvalObjv(Tcl_Interp *interp,
			    int objc, Tcl_Obj *const *objv, int flags);
MODULE_SCOPE void	TkSendVirtualEvent(Tk_Window tgtWin,
			    const char *eventName);
MODULE_SCOPE Tcl_Command TkMakeEnsemble(Tcl_Interp *interp,
			    const char *nsname, const char *name,
			    ClientData clientData, const TkEnsemble *map);
MODULE_SCOPE int	TkInitTkCmd(Tcl_Interp *interp,
			    ClientData clientData);
MODULE_SCOPE int	TkInitFontchooser(Tcl_Interp *interp,
			    ClientData clientData);
MODULE_SCOPE void	TkpWarpPointer(TkDisplay *dispPtr);

/*
 * Unsupported commands.
 */

MODULE_SCOPE int	TkUnsupported1ObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);

/*
 * For Tktest.
 */
MODULE_SCOPE int SquareObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj * const objv[]);
MODULE_SCOPE int	TkOldTestInit(Tcl_Interp *interp);
#if !(defined(__WIN32__) || defined(MAC_OSX_TK))
#define TkplatformtestInit(x) TCL_OK
#else
MODULE_SCOPE int	TkplatformtestInit(Tcl_Interp *interp);
#endif

#endif /* _TKINT */

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */