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comparison lwlib/lwlib-Xaw.c @ 428:3ecd8885ac67 r21-2-22

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author cvs
date Mon, 13 Aug 2007 11:28:15 +0200
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427:0a0253eac470 428:3ecd8885ac67
1 /* The lwlib interface to Athena widgets.
2 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
3
4 This file is part of the Lucid Widget Library.
5
6 The Lucid Widget Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 1, or (at your option)
9 any later version.
10
11 The Lucid Widget Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 #include <config.h>
22 #include <stdio.h>
23
24 #ifdef STDC_HEADERS
25 #include <stdlib.h>
26 #endif
27
28 #include "lwlib-Xaw.h"
29
30 #include <X11/StringDefs.h>
31 #include <X11/IntrinsicP.h>
32 #include <X11/CoreP.h>
33 #include <X11/Shell.h>
34
35 #ifdef LWLIB_SCROLLBARS_ATHENA
36 #include <X11/Xaw/Scrollbar.h>
37 #endif
38 #ifdef LWLIB_DIALOGS_ATHENA
39 #include <X11/Xaw/Dialog.h>
40 #include <X11/Xaw/Form.h>
41 #include <X11/Xaw/Command.h>
42 #include <X11/Xaw/Label.h>
43 #endif
44 #ifdef LWLIB_WIDGETS_ATHENA
45 #include <X11/Xaw/Toggle.h>
46 #include "xlwradio.h"
47 #include "xlwcheckbox.h"
48 #include "xlwgauge.h"
49 #ifndef NEED_MOTIF
50 #include <X11/Xaw/AsciiText.h>
51 #endif
52 #endif
53 #include <X11/Xatom.h>
54
55 static void xaw_generic_callback (Widget, XtPointer, XtPointer);
56
57
58 Boolean
59 lw_xaw_widget_p (Widget widget)
60 {
61 return (0
62 #ifdef LWLIB_SCROLLBARS_ATHENA
63 || XtIsSubclass (widget, scrollbarWidgetClass)
64 #endif
65 #ifdef LWLIB_DIALOGS_ATHENA
66 || XtIsSubclass (widget, dialogWidgetClass)
67 #endif
68 #ifdef LWLIB_WIDGETS_ATHENA
69 || XtIsSubclass (widget, labelWidgetClass)
70 || XtIsSubclass (widget, toggleWidgetClass)
71 || XtIsSubclass (widget, gaugeWidgetClass)
72 #if 0
73 || XtIsSubclass (widget, textWidgetClass)
74 #endif
75 #endif
76 );
77 }
78
79 #ifdef LWLIB_SCROLLBARS_ATHENA
80 static void
81 xaw_update_scrollbar (widget_instance *instance, Widget widget,
82 widget_value *val)
83 {
84 if (val->scrollbar_data)
85 {
86 scrollbar_values *data = val->scrollbar_data;
87 float widget_shown, widget_topOfThumb;
88 float new_shown, new_topOfThumb;
89 Arg al [10];
90
91 /* First size and position the scrollbar widget. */
92 XtSetArg (al [0], XtNx, data->scrollbar_x);
93 XtSetArg (al [1], XtNy, data->scrollbar_y);
94 XtSetArg (al [2], XtNwidth, data->scrollbar_width);
95 XtSetArg (al [3], XtNheight, data->scrollbar_height);
96 XtSetValues (widget, al, 4);
97
98 /* Now size the scrollbar's slider. */
99 XtSetArg (al [0], XtNtopOfThumb, &widget_topOfThumb);
100 XtSetArg (al [1], XtNshown, &widget_shown);
101 XtGetValues (widget, al, 2);
102
103 new_shown = (double) data->slider_size /
104 (double) (data->maximum - data->minimum);
105
106 new_topOfThumb = (double) (data->slider_position - data->minimum) /
107 (double) (data->maximum - data->minimum);
108
109 if (new_shown > 1.0)
110 new_shown = 1.0;
111 else if (new_shown < 0)
112 new_shown = 0;
113
114 if (new_topOfThumb > 1.0)
115 new_topOfThumb = 1.0;
116 else if (new_topOfThumb < 0)
117 new_topOfThumb = 0;
118
119 if (new_shown != widget_shown || new_topOfThumb != widget_topOfThumb)
120 XawScrollbarSetThumb (widget, new_topOfThumb, new_shown);
121 }
122 }
123 #endif /* LWLIB_SCROLLBARS_ATHENA */
124
125 void
126 xaw_update_one_widget (widget_instance *instance, Widget widget,
127 widget_value *val, Boolean deep_p)
128 {
129 if (val->nargs)
130 XtSetValues (widget, val->args, val->nargs);
131
132 if (0)
133 ;
134 #ifdef LWLIB_SCROLLBARS_ATHENA
135 else if (XtIsSubclass (widget, scrollbarWidgetClass))
136 {
137 xaw_update_scrollbar (instance, widget, val);
138 }
139 #endif
140 #ifdef LWLIB_DIALOGS_ATHENA
141 else if (XtIsSubclass (widget, dialogWidgetClass))
142 {
143 Arg al [1];
144 XtSetArg (al [0], XtNlabel, val->contents->value);
145 XtSetValues (widget, al, 1);
146 }
147 #endif /* LWLIB_DIALOGS_ATHENA */
148 #ifdef LWLIB_WIDGETS_ATHENA
149 else if (XtClass (widget) == labelWidgetClass)
150 {
151 Arg al [1];
152 XtSetArg (al [0], XtNlabel, val->value);
153 XtSetValues (widget, al, 1);
154 }
155 #endif /* LWLIB_WIDGETS_ATHENA */
156 #if defined (LWLIB_DIALOGS_ATHENA) || defined (LWLIB_WIDGETS_ATHENA)
157 else if (XtIsSubclass (widget, commandWidgetClass))
158 {
159 Dimension bw = 0;
160 Arg al [3];
161 XtSetArg (al [0], XtNborderWidth, &bw);
162 XtGetValues (widget, al, 1);
163
164 #ifndef LWLIB_DIALOGS_ATHENA3D
165 if (bw == 0)
166 /* Don't let buttons end up with 0 borderwidth, that's ugly...
167 Yeah, all this should really be done through app-defaults files
168 or fallback resources, but that's a whole different can of worms
169 that I don't feel like opening right now. Making Athena widgets
170 not look like shit is just entirely too much work.
171 */
172 {
173 XtSetArg (al [0], XtNborderWidth, 1);
174 XtSetValues (widget, al, 1);
175 }
176 #endif /* ! LWLIB_DIALOGS_ATHENA3D */
177
178 XtSetArg (al [0], XtNlabel, val->value);
179 XtSetArg (al [1], XtNsensitive, val->enabled);
180 /* Force centered button text. See above. */
181 XtSetArg (al [2], XtNjustify, XtJustifyCenter);
182 XtSetValues (widget, al, 3);
183
184 XtRemoveAllCallbacks (widget, XtNcallback);
185 XtAddCallback (widget, XtNcallback, xaw_generic_callback, instance);
186 #ifdef LWLIB_WIDGETS_ATHENA
187 /* set the selected state */
188 if (XtIsSubclass (widget, toggleWidgetClass))
189 {
190 XtSetArg (al [0], XtNstate, val->selected);
191 XtSetValues (widget, al, 1);
192 }
193 #endif /* LWLIB_WIDGETS_ATHENA */
194 }
195 #endif /* LWLIB_DIALOGS_ATHENA */
196 }
197
198 void
199 xaw_update_one_value (widget_instance *instance, Widget widget,
200 widget_value *val)
201 {
202 #ifdef LWLIB_WIDGETS_ATHENA
203 widget_value *old_wv;
204
205 /* copy the call_data slot into the "return" widget_value */
206 for (old_wv = instance->info->val->contents; old_wv; old_wv = old_wv->next)
207 if (!strcmp (val->name, old_wv->name))
208 {
209 val->call_data = old_wv->call_data;
210 break;
211 }
212
213 if (XtIsSubclass (widget, toggleWidgetClass))
214 {
215 Arg al [1];
216 XtSetArg (al [0], XtNstate, &val->selected);
217 XtGetValues (widget, al, 1);
218 val->edited = True;
219 }
220 #ifndef NEED_MOTIF
221 else if (XtIsSubclass (widget, asciiTextWidgetClass))
222 {
223 Arg al [1];
224 if (val->value)
225 free (val->value);
226 XtSetArg (al [0], XtNstring, &val->value);
227 XtGetValues (widget, al, 1);
228 val->edited = True;
229 }
230 #endif
231 #endif /* LWLIB_WIDGETS_ATHENA */
232 }
233
234 void
235 xaw_destroy_instance (widget_instance *instance)
236 {
237 #ifdef LWLIB_DIALOGS_ATHENA
238 if (XtIsSubclass (instance->widget, dialogWidgetClass))
239 /* Need to destroy the Shell too. */
240 XtDestroyWidget (XtParent (instance->widget));
241 else
242 #endif
243 XtDestroyWidget (instance->widget);
244 }
245
246 void
247 xaw_popup_menu (Widget widget, XEvent *event)
248 {
249 /* An Athena menubar has not been implemented. */
250 return;
251 }
252
253 void
254 xaw_pop_instance (widget_instance *instance, Boolean up)
255 {
256 Widget widget = instance->widget;
257
258 if (up)
259 {
260 #ifdef LWLIB_DIALOGS_ATHENA
261 if (XtIsSubclass (widget, dialogWidgetClass))
262 {
263 /* For dialogs, we need to call XtPopup on the parent instead
264 of calling XtManageChild on the widget.
265 Also we need to hack the shell's WM_PROTOCOLS to get it to
266 understand what the close box is supposed to do!!
267 */
268 Display *dpy = XtDisplay (widget);
269 Widget shell = XtParent (widget);
270 Atom props [2];
271 int i = 0;
272 props [i++] = XInternAtom (dpy, "WM_DELETE_WINDOW", False);
273 XChangeProperty (dpy, XtWindow (shell),
274 XInternAtom (dpy, "WM_PROTOCOLS", False),
275 XA_ATOM, 32, PropModeAppend,
276 (unsigned char *) props, i);
277
278 /* Center the widget in its parent. Why isn't this kind of crap
279 done automatically? I thought toolkits were supposed to make
280 life easier?
281 */
282 {
283 unsigned int x, y, w, h;
284 Widget topmost = instance->parent;
285 w = shell->core.width;
286 h = shell->core.height;
287 while (topmost->core.parent &&
288 XtIsRealized (topmost->core.parent) &&
289 /* HAVE_SESSION adds an unmapped parent widget that
290 we should ignore here. */
291 topmost->core.parent->core.mapped_when_managed)
292 topmost = topmost->core.parent;
293 if (topmost->core.width < w) x = topmost->core.x;
294 else x = topmost->core.x + ((topmost->core.width - w) / 2);
295 if (topmost->core.height < h) y = topmost->core.y;
296 else y = topmost->core.y + ((topmost->core.height - h) / 2);
297 XtMoveWidget (shell, x, y);
298 }
299
300 /* Finally, pop it up. */
301 XtPopup (shell, XtGrabNonexclusive);
302 }
303 else
304 #endif /* LWLIB_DIALOGS_ATHENA */
305 XtManageChild (widget);
306 }
307 else
308 {
309 #ifdef LWLIB_DIALOGS_ATHENA
310 if (XtIsSubclass (widget, dialogWidgetClass))
311 XtUnmanageChild (XtParent (widget));
312 else
313 #endif
314 XtUnmanageChild (widget);
315 }
316 }
317
318
319 #ifdef LWLIB_DIALOGS_ATHENA
320 /* Dialog boxes */
321
322 static char overrideTrans[] =
323 "<Message>WM_PROTOCOLS: lwlib_delete_dialog()";
324 static XtActionProc wm_delete_window (Widget shell, XtPointer closure,
325 XtPointer call_data);
326 static XtActionsRec xaw_actions [] = {
327 {"lwlib_delete_dialog", (XtActionProc) wm_delete_window}
328 };
329 static Boolean actions_initted = False;
330
331 static Widget
332 make_dialog (CONST char* name, Widget parent, Boolean pop_up_p,
333 CONST char* shell_title, CONST char* icon_name,
334 Boolean text_input_slot,
335 Boolean radio_box, Boolean list,
336 int left_buttons, int right_buttons)
337 {
338 Arg av [20];
339 int ac = 0;
340 int i, bc;
341 char button_name [255];
342 Widget shell;
343 Widget dialog;
344 Widget button;
345 XtTranslations override;
346
347 if (! pop_up_p) abort (); /* not implemented */
348 if (text_input_slot) abort (); /* not implemented */
349 if (radio_box) abort (); /* not implemented */
350 if (list) abort (); /* not implemented */
351
352 if (! actions_initted)
353 {
354 XtAppContext app = XtWidgetToApplicationContext (parent);
355 XtAppAddActions (app, xaw_actions,
356 sizeof (xaw_actions) / sizeof (xaw_actions[0]));
357 actions_initted = True;
358 }
359
360 override = XtParseTranslationTable (overrideTrans);
361
362 ac = 0;
363 XtSetArg (av[ac], XtNtitle, shell_title); ac++;
364 XtSetArg (av[ac], XtNallowShellResize, True); ac++;
365 XtSetArg (av[ac], XtNtransientFor, parent); ac++;
366 shell = XtCreatePopupShell ("dialog", transientShellWidgetClass,
367 parent, av, ac);
368 XtOverrideTranslations (shell, override);
369
370 ac = 0;
371 dialog = XtCreateManagedWidget (name, dialogWidgetClass, shell, av, ac);
372
373 bc = 0;
374 button = 0;
375 for (i = 0; i < left_buttons; i++)
376 {
377 ac = 0;
378 XtSetArg (av [ac], XtNfromHoriz, button); ac++;
379 XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
380 XtSetArg (av [ac], XtNright, XtChainLeft); ac++;
381 XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
382 XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
383 XtSetArg (av [ac], XtNresizable, True); ac++;
384 sprintf (button_name, "button%d", ++bc);
385 button = XtCreateManagedWidget (button_name, commandWidgetClass,
386 dialog, av, ac);
387 }
388 if (right_buttons)
389 {
390 /* Create a separator
391
392 I want the separator to take up the slack between the buttons on
393 the right and the buttons on the left (that is I want the buttons
394 after the separator to be packed against the right edge of the
395 window) but I can't seem to make it do it.
396 */
397 ac = 0;
398 XtSetArg (av [ac], XtNfromHoriz, button); ac++;
399 /* XtSetArg (av [ac], XtNfromVert, XtNameToWidget (dialog, "label")); ac++; */
400 XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
401 XtSetArg (av [ac], XtNright, XtChainRight); ac++;
402 XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
403 XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
404 XtSetArg (av [ac], XtNlabel, ""); ac++;
405 XtSetArg (av [ac], XtNwidth, 30); ac++; /* #### aaack!! */
406 XtSetArg (av [ac], XtNborderWidth, 0); ac++;
407 XtSetArg (av [ac], XtNshapeStyle, XmuShapeRectangle); ac++;
408 XtSetArg (av [ac], XtNresizable, False); ac++;
409 XtSetArg (av [ac], XtNsensitive, False); ac++;
410 button = XtCreateManagedWidget ("separator",
411 /* labelWidgetClass, */
412 /* This has to be Command to fake out
413 the Dialog widget... */
414 commandWidgetClass,
415 dialog, av, ac);
416 }
417 for (i = 0; i < right_buttons; i++)
418 {
419 ac = 0;
420 XtSetArg (av [ac], XtNfromHoriz, button); ac++;
421 XtSetArg (av [ac], XtNleft, XtChainRight); ac++;
422 XtSetArg (av [ac], XtNright, XtChainRight); ac++;
423 XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
424 XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
425 XtSetArg (av [ac], XtNresizable, True); ac++;
426 sprintf (button_name, "button%d", ++bc);
427 button = XtCreateManagedWidget (button_name, commandWidgetClass,
428 dialog, av, ac);
429 }
430
431 return dialog;
432 }
433
434 Widget
435 xaw_create_dialog (widget_instance* instance)
436 {
437 char *name = instance->info->type;
438 Widget parent = instance->parent;
439 Widget widget;
440 Boolean pop_up_p = instance->pop_up_p;
441 CONST char *shell_name = 0;
442 CONST char *icon_name = 0;
443 Boolean text_input_slot = False;
444 Boolean radio_box = False;
445 Boolean list = False;
446 int total_buttons;
447 int left_buttons = 0;
448 int right_buttons = 1;
449
450 switch (name [0]) {
451 case 'E': case 'e':
452 icon_name = "dbox-error";
453 shell_name = "Error";
454 break;
455
456 case 'I': case 'i':
457 icon_name = "dbox-info";
458 shell_name = "Information";
459 break;
460
461 case 'L': case 'l':
462 list = True;
463 icon_name = "dbox-question";
464 shell_name = "Prompt";
465 break;
466
467 case 'P': case 'p':
468 text_input_slot = True;
469 icon_name = "dbox-question";
470 shell_name = "Prompt";
471 break;
472
473 case 'Q': case 'q':
474 icon_name = "dbox-question";
475 shell_name = "Question";
476 break;
477 }
478
479 total_buttons = name [1] - '0';
480
481 if (name [3] == 'T' || name [3] == 't')
482 {
483 text_input_slot = False;
484 radio_box = True;
485 }
486 else if (name [3])
487 right_buttons = name [4] - '0';
488
489 left_buttons = total_buttons - right_buttons;
490
491 widget = make_dialog (name, parent, pop_up_p,
492 shell_name, icon_name, text_input_slot, radio_box,
493 list, left_buttons, right_buttons);
494
495 return widget;
496 }
497 #endif /* LWLIB_DIALOGS_ATHENA */
498
499
500 static void
501 xaw_generic_callback (Widget widget, XtPointer closure, XtPointer call_data)
502 {
503 widget_instance *instance = (widget_instance *) closure;
504 Widget instance_widget;
505 LWLIB_ID id;
506 XtPointer user_data;
507 #ifdef LWLIB_WIDGETS_ATHENA
508 /* We want the selected status to change only when we decide it
509 should change. Yuck but correct. */
510 if (XtIsSubclass (widget, toggleWidgetClass))
511 {
512 Boolean check;
513 Arg al [1];
514
515 XtSetArg (al [0], XtNstate, &check);
516 XtGetValues (widget, al, 1);
517
518 XtSetArg (al [0], XtNstate, !check);
519 XtSetValues (widget, al, 1);
520 }
521 #endif /* LWLIB_WIDGETS_ATHENA */
522 lw_internal_update_other_instances (widget, closure, call_data);
523
524 if (! instance)
525 return;
526 if (widget->core.being_destroyed)
527 return;
528
529 instance_widget = instance->widget;
530 if (!instance_widget)
531 return;
532
533 id = instance->info->id;
534
535 #if 0
536 user_data = NULL;
537 {
538 Arg al [1];
539 XtSetArg (al [0], XtNuserData, &user_data);
540 XtGetValues (widget, al, 1);
541 }
542 #else
543 /* Damn! Athena doesn't give us a way to hang our own data on the
544 buttons, so we have to go find it... I guess this assumes that
545 all instances of a button have the same call data.
546
547 ... Which is a totally bogus assumption --andyp */
548 {
549 widget_value *val = instance->info->val;
550 /* If the widget is a buffer/gutter widget then we already have
551 the one we are looking for, so don't try and descend the widget
552 tree. */
553 if (val->contents)
554 {
555 char *name = XtName (widget);
556 val = val->contents;
557 while (val)
558 {
559 if (val->name && !strcmp (val->name, name))
560 break;
561 val = val->next;
562 }
563 if (! val) abort ();
564 }
565 user_data = val->call_data;
566 }
567 #endif
568
569 if (instance->info->selection_cb)
570 instance->info->selection_cb (widget, id, user_data);
571 }
572
573 #ifdef LWLIB_DIALOGS_ATHENA
574
575 static XtActionProc
576 wm_delete_window (Widget shell, XtPointer closure, XtPointer call_data)
577 {
578 LWLIB_ID id;
579 Widget *kids = 0;
580 Widget widget;
581 Arg al [1];
582 if (! XtIsSubclass (shell, shellWidgetClass))
583 abort ();
584 XtSetArg (al [0], XtNchildren, &kids);
585 XtGetValues (shell, al, 1);
586 if (!kids || !*kids)
587 abort ();
588 widget = kids [0];
589 if (! XtIsSubclass (widget, dialogWidgetClass))
590 abort ();
591 id = lw_get_widget_id (widget);
592 if (! id) abort ();
593
594 {
595 widget_info *info = lw_get_widget_info (id);
596 if (! info) abort ();
597 if (info->selection_cb)
598 info->selection_cb (widget, id, (XtPointer) -1);
599 }
600
601 lw_destroy_all_widgets (id);
602 return NULL;
603 }
604
605 #endif /* LWLIB_DIALOGS_ATHENA */
606
607
608 /* Scrollbars */
609
610 #ifdef LWLIB_SCROLLBARS_ATHENA
611 static void
612 xaw_scrollbar_scroll (Widget widget, XtPointer closure, XtPointer call_data)
613 {
614 widget_instance *instance = (widget_instance *) closure;
615 LWLIB_ID id;
616 scroll_event event_data;
617
618 if (!instance || widget->core.being_destroyed)
619 return;
620
621 id = instance->info->id;
622 event_data.slider_value = (int) call_data;
623 event_data.time = 0;
624
625 if ((int) call_data > 0)
626 /* event_data.action = SCROLLBAR_PAGE_DOWN;*/
627 event_data.action = SCROLLBAR_LINE_DOWN;
628 else
629 /* event_data.action = SCROLLBAR_PAGE_UP;*/
630 event_data.action = SCROLLBAR_LINE_UP;
631
632 if (instance->info->pre_activate_cb)
633 instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
634 }
635
636 static void
637 xaw_scrollbar_jump (Widget widget, XtPointer closure, XtPointer call_data)
638 {
639 widget_instance *instance = (widget_instance *) closure;
640 LWLIB_ID id;
641 scroll_event event_data;
642 scrollbar_values *val =
643 (scrollbar_values *) instance->info->val->scrollbar_data;
644 float percent;
645
646 if (!instance || widget->core.being_destroyed)
647 return;
648
649 id = instance->info->id;
650
651 percent = * (float *) call_data;
652 event_data.slider_value =
653 (int) (percent * (float) (val->maximum - val->minimum)) + val->minimum;
654
655 event_data.time = 0;
656 event_data.action = SCROLLBAR_DRAG;
657
658 if (instance->info->pre_activate_cb)
659 instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
660 }
661
662 static Widget
663 xaw_create_scrollbar (widget_instance *instance, int vertical)
664 {
665 Arg av[10];
666 int ac = 0;
667
668 static XtCallbackRec jumpCallbacks[2] =
669 { {xaw_scrollbar_jump, NULL}, {NULL, NULL} };
670
671 static XtCallbackRec scrollCallbacks[2] =
672 { {xaw_scrollbar_scroll, NULL}, {NULL, NULL} };
673
674 jumpCallbacks[0].closure = scrollCallbacks[0].closure = (XtPointer) instance;
675
676 /* #### This is tacked onto the with and height and completely
677 screws our geometry management. We should probably make the
678 top-level aware of this so that people could have a border but so
679 few people use the Athena scrollbar now that it really isn't
680 worth the effort, at least not at the moment. */
681 XtSetArg (av [ac], XtNborderWidth, 0); ac++;
682 XtSetArg (av [ac], XtNorientation,
683 vertical ? XtorientVertical : XtorientHorizontal); ac++;
684 XtSetArg (av [ac], "jumpProc", jumpCallbacks); ac++;
685 XtSetArg (av [ac], "scrollProc", scrollCallbacks); ac++;
686
687 return XtCreateWidget (instance->info->name, scrollbarWidgetClass,
688 instance->parent, av, ac);
689 }
690
691 static Widget
692 xaw_create_vertical_scrollbar (widget_instance *instance)
693 {
694 return xaw_create_scrollbar (instance, 1);
695 }
696
697 static Widget
698 xaw_create_horizontal_scrollbar (widget_instance *instance)
699 {
700 return xaw_create_scrollbar (instance, 0);
701 }
702 #endif /* LWLIB_SCROLLBARS_ATHENA */
703
704 #ifdef LWLIB_WIDGETS_ATHENA
705 /* glyph widgets */
706 static Widget
707 xaw_create_button (widget_instance *instance)
708 {
709 Arg al[20];
710 int ac = 0;
711 Widget button = 0;
712 widget_value* val = instance->info->val;
713
714 XtSetArg (al [ac], XtNsensitive, val->enabled); ac++;
715 XtSetArg (al [ac], XtNmappedWhenManaged, FALSE); ac++;
716 XtSetArg (al [ac], XtNjustify, XtJustifyCenter); ac++;
717 /* The highlight doesn't appear to be dynamically set which makes it
718 look ugly. I think this may be a LessTif bug but for now we just
719 get rid of it. */
720 XtSetArg (al [ac], XtNhighlightThickness, (Dimension)0);ac++;
721
722 /* add any args the user supplied for creation time */
723 lw_add_value_args_to_args (val, al, &ac);
724
725 if (!val->call_data)
726 button = XtCreateManagedWidget (val->name, labelWidgetClass,
727 instance->parent, al, ac);
728
729 else
730 {
731 if (val->type == TOGGLE_TYPE || val->type == RADIO_TYPE)
732 {
733 XtSetArg (al [ac], XtNstate, val->selected); ac++;
734 button = XtCreateManagedWidget
735 (val->name,
736 val->type == TOGGLE_TYPE ? checkboxWidgetClass : radioWidgetClass,
737 instance->parent, al, ac);
738 }
739 else
740 {
741 button = XtCreateManagedWidget (val->name, commandWidgetClass,
742 instance->parent, al, ac);
743 }
744 XtRemoveAllCallbacks (button, XtNcallback);
745 XtAddCallback (button, XtNcallback, xaw_generic_callback, (XtPointer)instance);
746 }
747
748 XtManageChild (button);
749
750 return button;
751 }
752
753 static Widget
754 xaw_create_label_field (widget_instance *instance)
755 {
756 return xaw_create_label (instance->parent, instance->info->val);
757 }
758
759 Widget
760 xaw_create_label (Widget parent, widget_value* val)
761 {
762 Arg al[20];
763 int ac = 0;
764 Widget label = 0;
765
766 XtSetArg (al [ac], XtNsensitive, val->enabled); ac++;
767 XtSetArg (al [ac], XtNmappedWhenManaged, FALSE); ac++;
768 XtSetArg (al [ac], XtNjustify, XtJustifyCenter); ac++;
769
770 /* add any args the user supplied for creation time */
771 lw_add_value_args_to_args (val, al, &ac);
772
773 label = XtCreateManagedWidget (val->name, labelWidgetClass,
774 parent, al, ac);
775
776 /* Do it again for arguments that have no effect until the widget is realized. */
777 ac = 0;
778 lw_add_value_args_to_args (val, al, &ac);
779 XtSetValues (label, al, ac);
780
781 return label;
782 }
783
784 static Widget
785 xaw_create_progress (widget_instance *instance)
786 {
787 Arg al[20];
788 int ac = 0;
789 Widget scale = 0;
790 widget_value* val = instance->info->val;
791
792 if (!val->call_data)
793 {
794 XtSetArg (al [ac], XtNsensitive, False); ac++;
795 }
796 else
797 {
798 XtSetArg (al [ac], XtNsensitive, val->enabled); ac++;
799 }
800 XtSetArg (al [ac], XtNmappedWhenManaged, FALSE); ac++;
801 XtSetArg (al [ac], XtNorientation, XtorientHorizontal); ac++;
802 XtSetArg (al [ac], XtNhighlightThickness, (Dimension)0);ac++;
803 XtSetArg (al [ac], XtNntics, (Cardinal)10);ac++;
804
805 /* add any args the user supplied for creation time */
806 lw_add_value_args_to_args (val, al, &ac);
807
808 scale = XtCreateManagedWidget (val->name, gaugeWidgetClass,
809 instance->parent, al, ac);
810 /* add the callback */
811 if (val->call_data)
812 XtAddCallback (scale, XtNgetValue, xaw_generic_callback, (XtPointer)instance);
813
814 XtManageChild (scale);
815
816 return scale;
817 }
818
819 #ifndef NEED_MOTIF
820 static Widget
821 xaw_create_text_field (widget_instance *instance)
822 {
823 Arg al[20];
824 int ac = 0;
825 Widget text = 0;
826 widget_value* val = instance->info->val;
827
828 XtSetArg (al [ac], XtNsensitive, val->enabled && val->call_data); ac++;
829 XtSetArg (al [ac], XtNmappedWhenManaged, FALSE); ac++;
830 XtSetArg (al [ac], XtNhighlightThickness, (Dimension)0); ac++;
831 XtSetArg (al [ac], XtNtype, XawAsciiString); ac++;
832 XtSetArg (al [ac], XtNeditType, XawtextEdit); ac++;
833
834 /* add any args the user supplied for creation time */
835 lw_add_value_args_to_args (val, al, &ac);
836
837 text = XtCreateManagedWidget (val->name, asciiTextWidgetClass,
838 instance->parent, al, ac);
839 XtManageChild (text);
840
841 return text;
842 }
843 #endif
844 #endif /* LWLIB_WIDGETS_ATHENA */
845
846 widget_creation_entry
847 xaw_creation_table [] =
848 {
849 #ifdef LWLIB_SCROLLBARS_ATHENA
850 {"vertical-scrollbar", xaw_create_vertical_scrollbar },
851 {"horizontal-scrollbar", xaw_create_horizontal_scrollbar },
852 #endif
853 #ifdef LWLIB_WIDGETS_ATHENA
854 {"button", xaw_create_button },
855 { "label", xaw_create_label_field },
856 #ifndef NEED_MOTIF
857 {"text-field", xaw_create_text_field },
858 #endif
859 {"progress", xaw_create_progress },
860 #endif
861 {NULL, NULL}
862 };
863