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
|
/* The lwlib interface to Athena widgets.
Copyright (C) 1993 Chuck Thompson <cthomp@cs.uiuc.edu>
Copyright (C) 1994, 2001-2016 Free Software Foundation, Inc.
This file is part of the Lucid Widget Library.
The Lucid Widget Library is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
The Lucid Widget Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdio.h>
#include <setjmp.h>
#include <lisp.h>
#include "lwlib-Xaw.h"
#include <X11/StringDefs.h>
#include <X11/IntrinsicP.h>
#include <X11/CoreP.h>
#include <X11/Shell.h>
#ifdef HAVE_XAW3D
#include <X11/Xaw3d/Scrollbar.h>
#include <X11/Xaw3d/Paned.h>
#include <X11/Xaw3d/Dialog.h>
#include <X11/Xaw3d/Form.h>
#include <X11/Xaw3d/Command.h>
#include <X11/Xaw3d/Label.h>
#else /* !HAVE_XAW3D */
#include <X11/Xaw/Scrollbar.h>
#include <X11/Xaw/Paned.h>
#include <X11/Xaw/Dialog.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/Command.h>
#include <X11/Xaw/Label.h>
#endif /* HAVE_XAW3D */
#include <X11/Xatom.h>
#ifdef HAVE_XFT
#include <X11/Xft/Xft.h>
struct widget_xft_data
{
Widget widget;
XftFont *xft_font;
XftDraw *xft_draw;
XftColor xft_fg, xft_bg;
int p_width, p_height;
Pixmap p;
};
#endif
static void xaw_generic_callback (Widget widget,
XtPointer closure,
XtPointer call_data);
Boolean
lw_xaw_widget_p (Widget widget)
{
return (XtIsSubclass (widget, scrollbarWidgetClass) ||
XtIsSubclass (widget, dialogWidgetClass));
}
#ifdef HAVE_XFT
static void
fill_xft_data (struct widget_xft_data *data, Widget widget, XftFont *font)
{
Pixel bg, fg;
XColor colors[2];
data->widget = widget;
data->xft_font = font;
XtVaGetValues (widget,
XtNbackground, &bg,
XtNforeground, &fg,
NULL);
colors[0].pixel = data->xft_fg.pixel = fg;
colors[1].pixel = data->xft_bg.pixel = bg;
XQueryColors (XtDisplay (widget),
DefaultColormapOfScreen (XtScreen (widget)),
colors, 2);
data->xft_fg.color.alpha = 0xFFFF;
data->xft_fg.color.red = colors[0].red;
data->xft_fg.color.green = colors[0].green;
data->xft_fg.color.blue = colors[0].blue;
data->xft_bg.color.alpha = 0xFFFF;
data->xft_bg.color.red = colors[1].red;
data->xft_bg.color.green = colors[1].green;
data->xft_bg.color.blue = colors[1].blue;
data->p = None;
data->xft_draw = 0;
data->p_width = data->p_height = 0;
}
static XftFont*
openFont (Widget widget, char *name)
{
char *fname = name;
int screen = XScreenNumberOfScreen (XtScreen (widget));
int len = strlen (fname), i = len-1;
XftFont *fn;
/* Try to convert Gtk-syntax (Sans 9) to Xft syntax Sans-9. */
while (i > 0 && '0' <= fname[i] && fname[i] <= '9')
--i;
if (fname[i] == ' ')
{
fname = xstrdup (name);
fname[i] = '-';
}
fn = XftFontOpenName (XtDisplay (widget), screen, fname);
if (fname != name) xfree (fname);
return fn;
}
static int
get_text_width_and_height (Widget widget, char *text,
XftFont *xft_font,
int *height)
{
int w = 0, h = 0;
char *bp = text;
while (bp && *bp != '\0')
{
XGlyphInfo gi;
char *cp = strchr (bp, '\n');
XftTextExtentsUtf8 (XtDisplay (widget), xft_font,
(FcChar8 *) bp,
cp ? cp - bp : strlen (bp),
&gi);
bp = cp ? cp + 1 : NULL;
h += xft_font->height;
if (w < gi.width) w = gi.width;
}
*height = h;
return w;
}
static void
draw_text (struct widget_xft_data *data, char *lbl, int inverse)
{
Screen *sc = XtScreen (data->widget);
int screen = XScreenNumberOfScreen (sc);
int y = data->xft_font->ascent;
int x = inverse ? 0 : 2;
char *bp = lbl;
data->xft_draw = XftDrawCreate (XtDisplay (data->widget),
data->p,
DefaultVisual (XtDisplay (data->widget),
screen),
DefaultColormapOfScreen (sc));
XftDrawRect (data->xft_draw,
inverse ? &data->xft_fg : &data->xft_bg,
0, 0, data->p_width, data->p_height);
if (!inverse) y += 2;
while (bp && *bp != '\0')
{
char *cp = strchr (bp, '\n');
XftDrawStringUtf8 (data->xft_draw,
inverse ? &data->xft_bg : &data->xft_fg,
data->xft_font, x, y,
(FcChar8 *) bp,
cp ? cp - bp : strlen (bp));
bp = cp ? cp + 1 : NULL;
/* 1.2 gives reasonable line spacing. */
y += data->xft_font->height * 1.2;
}
}
static void
set_text (struct widget_xft_data *data, Widget toplevel, char *lbl, int margin)
{
int width, height;
width = get_text_width_and_height (data->widget, lbl, data->xft_font,
&height);
data->p_width = width + margin;
data->p_height = height + margin;
data->p = XCreatePixmap (XtDisplay (data->widget),
XtWindow (toplevel),
data->p_width,
data->p_height,
DefaultDepthOfScreen (XtScreen (data->widget)));
draw_text (data, lbl, 0);
XtVaSetValues (data->widget, XtNbitmap, data->p, NULL);
}
static struct widget_xft_data *
find_xft_data (Widget widget)
{
widget_instance *inst = NULL;
Widget parent = XtParent (widget);
struct widget_xft_data *data = NULL;
int nr;
while (parent && !inst)
{
inst = lw_get_widget_instance (parent);
parent = XtParent (parent);
}
if (!inst || !inst->xft_data || !inst->xft_data[0].xft_font) return 0;
for (nr = 0; data == NULL && nr < inst->nr_xft_data; ++nr)
{
if (inst->xft_data[nr].widget == widget)
data = &inst->xft_data[nr];
}
return data;
}
static void
command_press (Widget widget,
XEvent* event,
String *params,
Cardinal *num_params)
{
struct widget_xft_data *data = find_xft_data (widget);
if (data)
{
char *lbl;
/* Since this isn't used for rectangle buttons, use it to for armed. */
XtVaSetValues (widget, XtNcornerRoundPercent, 1, NULL);
XtVaGetValues (widget, XtNlabel, &lbl, NULL);
draw_text (data, lbl, 1);
}
}
static void
command_reset (Widget widget,
XEvent* event,
String *params,
Cardinal *num_params)
{
struct widget_xft_data *data = find_xft_data (widget);
if (data)
{
Dimension cr;
XtVaGetValues (widget, XtNcornerRoundPercent, &cr, NULL);
if (cr == 1)
{
char *lbl;
XtVaSetValues (widget, XtNcornerRoundPercent, 0, NULL);
XtVaGetValues (widget, XtNlabel, &lbl, NULL);
draw_text (data, lbl, 0);
}
}
}
#endif
void
xaw_update_one_widget (widget_instance *instance,
Widget widget,
widget_value *val,
Boolean deep_p)
{
if (XtIsSubclass (widget, dialogWidgetClass))
{
#ifdef HAVE_XFT
if (instance->xft_data && instance->xft_data[0].xft_font)
{
set_text (&instance->xft_data[0], instance->parent,
val->contents->value, 10);
}
#endif
XtVaSetValues (widget, XtNlabel, val->contents->value, NULL);
}
else if (XtIsSubclass (widget, commandWidgetClass))
{
Dimension bw = 0;
Arg al[10];
int ac = 0;
XtVaGetValues (widget, XtNborderWidth, &bw, NULL);
if (bw == 0)
/* Don't let buttons end up with 0 borderwidth, that's ugly...
Yeah, all this should really be done through app-defaults files
or fallback resources, but that's a whole different can of worms
that I don't feel like opening right now. Making Athena widgets
not look like shit is just entirely too much work.
*/
{
XtSetArg (al[0], XtNborderWidth, 1);
XtSetValues (widget, al, 1);
}
XtSetSensitive (widget, val->enabled);
XtSetArg (al[ac], XtNlabel, val->value);ac++;
/* Force centered button text. Se above. */
XtSetArg (al[ac], XtNjustify, XtJustifyCenter);ac++;
#ifdef HAVE_XFT
if (instance->xft_data && instance->xft_data[0].xft_font)
{
int th;
int nr;
for (nr = 0; nr < instance->nr_xft_data; ++nr)
if (instance->xft_data[nr].widget == widget)
break;
if (nr < instance->nr_xft_data)
{
set_text (&instance->xft_data[nr], instance->parent,
val->value, 6);
/* Must set internalHeight to twice the highlight thickness,
or else it gets overwritten by our pixmap. Probably a bug. */
XtVaGetValues (widget, XtNhighlightThickness, &th, NULL);
XtSetArg (al[ac], XtNinternalHeight, 2*th);ac++;
}
}
#endif
XtSetValues (widget, al, ac);
XtRemoveAllCallbacks (widget, XtNcallback);
XtAddCallback (widget, XtNcallback, xaw_generic_callback, instance);
}
}
void
xaw_update_one_value (widget_instance *instance,
Widget widget,
widget_value *val)
{
/* This function is not used by the scrollbars and those are the only
Athena widget implemented at the moment so do nothing. */
return;
}
void
xaw_destroy_instance (widget_instance *instance)
{
#ifdef HAVE_XFT
if (instance->xft_data)
{
int i;
for (i = 0; i < instance->nr_xft_data; ++i)
{
if (instance->xft_data[i].xft_draw)
XftDrawDestroy (instance->xft_data[i].xft_draw);
if (instance->xft_data[i].p != None)
{
XtVaSetValues (instance->xft_data[i].widget, XtNbitmap, None,
NULL);
XFreePixmap (XtDisplay (instance->widget),
instance->xft_data[i].p);
}
}
if (instance->xft_data[0].xft_font)
XftFontClose (XtDisplay (instance->widget),
instance->xft_data[0].xft_font);
xfree (instance->xft_data);
}
#endif
if (XtIsSubclass (instance->widget, dialogWidgetClass))
/* Need to destroy the Shell too. */
XtDestroyWidget (XtParent (instance->widget));
else
XtDestroyWidget (instance->widget);
}
void
xaw_popup_menu (Widget widget, XEvent *event)
{
/* An Athena menubar has not been implemented. */
return;
}
void
xaw_pop_instance (widget_instance *instance, Boolean up)
{
Widget widget = instance->widget;
if (up)
{
if (XtIsSubclass (widget, dialogWidgetClass))
{
/* For dialogs, we need to call XtPopup on the parent instead
of calling XtManageChild on the widget.
Also we need to hack the shell's WM_PROTOCOLS to get it to
understand what the close box is supposed to do!!
*/
Display *dpy = XtDisplay (widget);
Widget shell = XtParent (widget);
Atom props [2];
int i = 0;
props [i++] = XInternAtom (dpy, "WM_DELETE_WINDOW", False);
XChangeProperty (dpy, XtWindow (shell),
XInternAtom (dpy, "WM_PROTOCOLS", False),
XA_ATOM, 32, PropModeAppend,
(unsigned char *) props, i);
/* Center the widget in its parent. Why isn't this kind of crap
done automatically? I thought toolkits were supposed to make
life easier?
*/
{
unsigned int x, y, w, h;
Widget topmost = instance->parent;
Arg args[2];
w = shell->core.width;
h = shell->core.height;
while (topmost->core.parent && XtIsRealized (topmost->core.parent))
topmost = topmost->core.parent;
if (topmost->core.width < w) x = topmost->core.x;
else x = topmost->core.x + ((topmost->core.width - w) / 2);
if (topmost->core.height < h) y = topmost->core.y;
else y = topmost->core.y + ((topmost->core.height - h) / 2);
/* Using XtMoveWidget caused the widget to come
out in the wrong place with vtwm.
Question of virtual vs real coords, perhaps. */
XtSetArg (args[0], XtNx, x);
XtSetArg (args[1], XtNy, y);
XtSetValues (shell, args, 2);
}
/* Finally, pop it up. */
XtPopup (shell, XtGrabNonexclusive);
}
else
XtManageChild (widget);
}
else
{
if (XtIsSubclass (widget, dialogWidgetClass))
XtUnmanageChild (XtParent (widget));
else
XtUnmanageChild (widget);
}
}
/* Dialog boxes */
static char overrideTrans[] =
"<Message>WM_PROTOCOLS: lwlib_delete_dialog()";
/* Dialogs pop down on any key press */
static char dialogOverride[] =
"<KeyPress>Escape: lwlib_delete_dialog()";
static void wm_delete_window (Widget w,
XEvent *event,
String *params,
Cardinal *num_params);
static XtActionsRec xaw_actions [] = {
{"lwlib_delete_dialog", wm_delete_window}
};
static Boolean actions_initted = False;
#ifdef HAVE_XFT
static XtActionsRec button_actions[] =
{
{ "my_reset", command_reset },
{ "my_press", command_press },
};
char buttonTrans[] =
"<Leave>: reset() my_reset()\n"
"<Btn1Down>: set() my_press()\n"
"<Btn1Up>: my_reset() notify() unset()\n";
#endif
static Widget
make_dialog (char* name,
Widget parent,
Boolean pop_up_p,
char* shell_title,
char* icon_name,
Boolean text_input_slot,
Boolean radio_box,
Boolean list,
int left_buttons,
int right_buttons,
widget_instance *instance)
{
Arg av [20];
int ac = 0;
int i, bc;
char button_name [255];
Widget shell;
Widget dialog;
Widget button;
XtTranslations override;
#ifdef HAVE_XFT
XftFont *xft_font = 0;
XtTranslations button_override;
#endif
if (! pop_up_p) abort (); /* not implemented */
if (text_input_slot) abort (); /* not implemented */
if (radio_box) abort (); /* not implemented */
if (list) abort (); /* not implemented */
if (! actions_initted)
{
XtAppContext app = XtWidgetToApplicationContext (parent);
XtAppAddActions (app, xaw_actions,
sizeof (xaw_actions) / sizeof (xaw_actions[0]));
#ifdef HAVE_XFT
XtAppAddActions (app, button_actions,
sizeof (button_actions) / sizeof (button_actions[0]));
#endif
actions_initted = True;
}
override = XtParseTranslationTable (overrideTrans);
ac = 0;
XtSetArg (av[ac], XtNtitle, shell_title); ac++;
XtSetArg (av[ac], XtNallowShellResize, True); ac++;
/* Don't allow any geometry request from the user. */
XtSetArg (av[ac], XtNgeometry, 0); ac++;
shell = XtCreatePopupShell ("dialog", transientShellWidgetClass,
parent, av, ac);
XtOverrideTranslations (shell, override);
ac = 0;
dialog = XtCreateManagedWidget (name, dialogWidgetClass, shell, av, ac);
override = XtParseTranslationTable (dialogOverride);
XtOverrideTranslations (dialog, override);
#ifdef HAVE_XFT
{
int num;
Widget *ch = NULL;
Widget w = 0;
XtVaGetValues (dialog,
XtNnumChildren, &num,
XtNchildren, &ch, NULL);
for (i = 0; i < num; ++i)
{
if (!XtIsSubclass (ch[i], commandWidgetClass)
&& XtIsSubclass (ch[i], labelWidgetClass))
{
w = ch[i];
break;
}
}
instance->xft_data = 0;
instance->nr_xft_data = 0;
if (w)
{
XtResource rec[] =
{ { "font", "Font", XtRString, sizeof(String), 0, XtRString,
(XtPointer)"Sans-10" }};
char *fontName = NULL;
XtVaGetSubresources (dialog, &fontName, "Dialog", "dialog",
rec, 1, (String)NULL);
if (fontName)
{
XFontStruct *xfn = XLoadQueryFont (XtDisplay (dialog), fontName);
if (!xfn)
xft_font = openFont (dialog, fontName);
else
XFreeFont (XtDisplay (dialog), xfn);
}
if (xft_font)
{
instance->nr_xft_data = left_buttons + right_buttons + 1;
instance->xft_data = calloc (instance->nr_xft_data,
sizeof(*instance->xft_data));
fill_xft_data (&instance->xft_data[0], w, xft_font);
}
}
button_override = XtParseTranslationTable (buttonTrans);
}
#endif
bc = 0;
button = 0;
for (i = 0; i < left_buttons; i++)
{
ac = 0;
XtSetArg (av [ac], XtNfromHoriz, button); ac++;
XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
XtSetArg (av [ac], XtNright, XtChainLeft); ac++;
XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
XtSetArg (av [ac], XtNresizable, True); ac++;
#ifdef HAVE_XAW3D
if (DefaultDepthOfScreen (XtScreen (dialog)) >= 16)
{
/* Turn of dithered shadow if we can. Looks bad */
XtSetArg (av [ac], "beNiceToColormap", False); ac++;
}
#endif
sprintf (button_name, "button%d", ++bc);
button = XtCreateManagedWidget (button_name, commandWidgetClass,
dialog, av, ac);
#ifdef HAVE_XFT
if (xft_font)
{
fill_xft_data (&instance->xft_data[bc], button, xft_font);
XtOverrideTranslations (button, button_override);
}
#endif
}
for (i = 0; i < right_buttons; i++)
{
ac = 0;
XtSetArg (av [ac], XtNfromHoriz, button); ac++;
if (i == 0)
{
/* Separator to the other buttons. */
XtSetArg (av [ac], XtNhorizDistance, 30); ac++;
}
XtSetArg (av [ac], XtNleft, XtChainRight); ac++;
XtSetArg (av [ac], XtNright, XtChainRight); ac++;
XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
XtSetArg (av [ac], XtNresizable, True); ac++;
#ifdef HAVE_XAW3D
if (DefaultDepthOfScreen (XtScreen (dialog)) >= 16)
{
/* Turn of dithered shadow if we can. Looks bad */
XtSetArg (av [ac], "beNiceToColormap", False); ac++;
}
#endif
sprintf (button_name, "button%d", ++bc);
button = XtCreateManagedWidget (button_name, commandWidgetClass,
dialog, av, ac);
#ifdef HAVE_XFT
if (xft_font)
{
fill_xft_data (&instance->xft_data[bc], button, xft_font);
XtOverrideTranslations (button, button_override);
}
#endif
}
return dialog;
}
Widget
xaw_create_dialog (widget_instance *instance)
{
char *name = instance->info->type;
Widget parent = instance->parent;
Widget widget;
Boolean pop_up_p = instance->pop_up_p;
char *shell_name = 0;
char *icon_name = 0;
Boolean text_input_slot = False;
Boolean radio_box = False;
Boolean list = False;
int total_buttons;
int left_buttons = 0;
int right_buttons = 1;
switch (name [0]) {
case 'E': case 'e':
icon_name = "dbox-error";
shell_name = "Error";
break;
case 'I': case 'i':
icon_name = "dbox-info";
shell_name = "Information";
break;
case 'L': case 'l':
list = True;
icon_name = "dbox-question";
shell_name = "Prompt";
break;
case 'P': case 'p':
text_input_slot = True;
icon_name = "dbox-question";
shell_name = "Prompt";
break;
case 'Q': case 'q':
icon_name = "dbox-question";
shell_name = "Question";
break;
}
total_buttons = name [1] - '0';
if (name [3] == 'T' || name [3] == 't')
{
text_input_slot = False;
radio_box = True;
}
else if (name [3])
right_buttons = name [4] - '0';
left_buttons = total_buttons - right_buttons;
widget = make_dialog (name, parent, pop_up_p,
shell_name, icon_name, text_input_slot, radio_box,
list, left_buttons, right_buttons, instance);
return widget;
}
static void
xaw_generic_callback (Widget widget, XtPointer closure, XtPointer call_data)
{
widget_instance *instance = (widget_instance *) closure;
Widget instance_widget;
LWLIB_ID id;
XtPointer user_data;
lw_internal_update_other_instances (widget, closure, call_data);
if (! instance)
return;
if (widget->core.being_destroyed)
return;
instance_widget = instance->widget;
if (!instance_widget)
return;
id = instance->info->id;
/* Damn! Athena doesn't give us a way to hang our own data on the
buttons, so we have to go find it... I guess this assumes that
all instances of a button have the same call data. */
{
widget_value *val = instance->info->val->contents;
char *name = XtName (widget);
while (val)
{
if (val->name && !strcmp (val->name, name))
break;
val = val->next;
}
if (! val) abort ();
user_data = val->call_data;
}
if (instance->info->selection_cb)
instance->info->selection_cb (widget, id, user_data);
}
static void
wm_delete_window (Widget w,
XEvent *event,
String *params,
Cardinal *num_params)
{
LWLIB_ID id;
Cardinal nkids;
int i;
Widget *kids = 0;
Widget widget = 0, shell;
if (XtIsSubclass (w, dialogWidgetClass))
shell = XtParent (w);
else
shell = w;
if (! XtIsSubclass (shell, shellWidgetClass))
abort ();
XtVaGetValues (shell, XtNnumChildren, &nkids, NULL);
XtVaGetValues (shell, XtNchildren, &kids, NULL);
if (!kids || !*kids)
abort ();
for (i = 0; i < nkids; i++)
{
widget = kids[i];
if (XtIsSubclass (widget, dialogWidgetClass))
break;
}
if (! widget) return;
id = lw_get_widget_id (widget);
if (! id) abort ();
{
widget_info *info = lw_get_widget_info (id);
if (! info) abort ();
if (info->selection_cb)
info->selection_cb (widget, id, (XtPointer) -1);
}
lw_destroy_all_widgets (id);
}
static Widget
xaw_create_main (widget_instance *instance)
{
Arg al[1];
int ac;
/* Create a vertical Paned to hold menubar */
ac = 0;
XtSetArg (al[ac], XtNborderWidth, 0); ac++;
return XtCreateWidget (instance->info->name, panedWidgetClass,
instance->parent, al, ac);
}
widget_creation_entry
xaw_creation_table [] =
{
{"main", xaw_create_main},
{NULL, NULL}
};
|