Commit | Line | Data |
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07bf635f RS |
1 | /* Implements a lightweight menubar widget. |
2 | Copyright (C) 1992 Lucid, 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 2, 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 | |
2289f3f4 | 17 | Alongalong with GNU Emacs; see the file COPYING. If not, write to |
07bf635f RS |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
19 | ||
20 | /* Created by devin@lucid.com */ | |
21 | ||
07bf635f RS |
22 | #include <stdio.h> |
23 | ||
24 | #include <sys/types.h> | |
25 | #include <X11/Xos.h> | |
26 | #include <X11/IntrinsicP.h> | |
2289f3f4 | 27 | #include <X11/ObjectP.h> |
07bf635f RS |
28 | #include <X11/StringDefs.h> |
29 | #include <X11/cursorfont.h> | |
30 | #include <X11/bitmaps/gray> | |
31 | #include "xlwmenuP.h" | |
d398028f | 32 | |
d35cf493 PR |
33 | static int disable_add_grab, disable_grab_pointer; |
34 | ||
d398028f PR |
35 | static int pointer_grabbed; |
36 | static XEvent menu_post_event; | |
07bf635f RS |
37 | |
38 | static char | |
39 | xlwMenuTranslations [] = | |
40 | "<BtnDown>: start()\n\ | |
d398028f | 41 | <Motion>: drag()\n\ |
07bf635f RS |
42 | <BtnUp>: select()\n\ |
43 | "; | |
44 | ||
45 | #define offset(field) XtOffset(XlwMenuWidget, field) | |
46 | static XtResource | |
47 | xlwMenuResources[] = | |
48 | { | |
49 | {XtNfont, XtCFont, XtRFontStruct, sizeof(XFontStruct *), | |
50 | offset(menu.font),XtRString, "XtDefaultFont"}, | |
51 | {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel), | |
52 | offset(menu.foreground), XtRString, "XtDefaultForeground"}, | |
53 | {XtNbuttonForeground, XtCButtonForeground, XtRPixel, sizeof(Pixel), | |
54 | offset(menu.button_foreground), XtRString, "XtDefaultForeground"}, | |
55 | {XtNmargin, XtCMargin, XtRDimension, sizeof(Dimension), | |
56 | offset(menu.margin), XtRImmediate, (XtPointer)0}, | |
57 | {XtNhorizontalSpacing, XtCMargin, XtRDimension, sizeof(Dimension), | |
58 | offset(menu.horizontal_spacing), XtRImmediate, (XtPointer)3}, | |
59 | {XtNverticalSpacing, XtCMargin, XtRDimension, sizeof(Dimension), | |
60 | offset(menu.vertical_spacing), XtRImmediate, (XtPointer)1}, | |
61 | {XtNarrowSpacing, XtCMargin, XtRDimension, sizeof(Dimension), | |
62 | offset(menu.arrow_spacing), XtRImmediate, (XtPointer)10}, | |
63 | ||
d398028f | 64 | {XmNshadowThickness, XmCShadowThickness, XtRDimension, |
07bf635f RS |
65 | sizeof (Dimension), offset (menu.shadow_thickness), |
66 | XtRImmediate, (XtPointer) 2}, | |
67 | {XmNtopShadowColor, XmCTopShadowColor, XtRPixel, sizeof (Pixel), | |
68 | offset (menu.top_shadow_color), XtRImmediate, (XtPointer)-1}, | |
69 | {XmNbottomShadowColor, XmCBottomShadowColor, XtRPixel, sizeof (Pixel), | |
70 | offset (menu.bottom_shadow_color), XtRImmediate, (XtPointer)-1}, | |
71 | {XmNtopShadowPixmap, XmCTopShadowPixmap, XtRPixmap, sizeof (Pixmap), | |
72 | offset (menu.top_shadow_pixmap), XtRImmediate, (XtPointer)None}, | |
73 | {XmNbottomShadowPixmap, XmCBottomShadowPixmap, XtRPixmap, sizeof (Pixmap), | |
74 | offset (menu.bottom_shadow_pixmap), XtRImmediate, (XtPointer)None}, | |
75 | ||
76 | {XtNopen, XtCCallback, XtRCallback, sizeof(XtPointer), | |
77 | offset(menu.open), XtRCallback, (XtPointer)NULL}, | |
78 | {XtNselect, XtCCallback, XtRCallback, sizeof(XtPointer), | |
79 | offset(menu.select), XtRCallback, (XtPointer)NULL}, | |
80 | {XtNmenu, XtCMenu, XtRPointer, sizeof(XtPointer), | |
81 | offset(menu.contents), XtRImmediate, (XtPointer)NULL}, | |
82 | {XtNcursor, XtCCursor, XtRCursor, sizeof(Cursor), | |
83 | offset(menu.cursor_shape), XtRString, (XtPointer)"right_ptr"}, | |
84 | {XtNhorizontal, XtCHorizontal, XtRInt, sizeof(int), | |
85 | offset(menu.horizontal), XtRImmediate, (XtPointer)True}, | |
86 | }; | |
87 | #undef offset | |
88 | ||
89 | static Boolean XlwMenuSetValues(); | |
90 | static void XlwMenuRealize(); | |
91 | static void XlwMenuRedisplay(); | |
92 | static void XlwMenuResize(); | |
93 | static void XlwMenuInitialize(); | |
94 | static void XlwMenuRedisplay(); | |
95 | static void XlwMenuDestroy(); | |
96 | static void XlwMenuClassInitialize(); | |
97 | static void Start(); | |
98 | static void Drag(); | |
99 | static void Select(); | |
100 | ||
101 | static XtActionsRec | |
102 | xlwMenuActionsList [] = | |
103 | { | |
104 | {"start", Start}, | |
105 | {"drag", Drag}, | |
106 | {"select", Select}, | |
107 | }; | |
108 | ||
109 | #define SuperClass ((CoreWidgetClass)&coreClassRec) | |
110 | ||
111 | XlwMenuClassRec xlwMenuClassRec = | |
112 | { | |
113 | { /* CoreClass fields initialization */ | |
114 | (WidgetClass) SuperClass, /* superclass */ | |
115 | "XlwMenu", /* class_name */ | |
116 | sizeof(XlwMenuRec), /* size */ | |
117 | XlwMenuClassInitialize, /* class_initialize */ | |
118 | NULL, /* class_part_initialize */ | |
119 | FALSE, /* class_inited */ | |
120 | XlwMenuInitialize, /* initialize */ | |
121 | NULL, /* initialize_hook */ | |
122 | XlwMenuRealize, /* realize */ | |
123 | xlwMenuActionsList, /* actions */ | |
124 | XtNumber(xlwMenuActionsList), /* num_actions */ | |
125 | xlwMenuResources, /* resources */ | |
126 | XtNumber(xlwMenuResources), /* resource_count */ | |
127 | NULLQUARK, /* xrm_class */ | |
128 | TRUE, /* compress_motion */ | |
129 | TRUE, /* compress_exposure */ | |
130 | TRUE, /* compress_enterleave */ | |
131 | FALSE, /* visible_interest */ | |
132 | XlwMenuDestroy, /* destroy */ | |
133 | XlwMenuResize, /* resize */ | |
134 | XlwMenuRedisplay, /* expose */ | |
135 | XlwMenuSetValues, /* set_values */ | |
136 | NULL, /* set_values_hook */ | |
137 | XtInheritSetValuesAlmost, /* set_values_almost */ | |
138 | NULL, /* get_values_hook */ | |
139 | NULL, /* accept_focus */ | |
140 | XtVersion, /* version */ | |
141 | NULL, /* callback_private */ | |
142 | xlwMenuTranslations, /* tm_table */ | |
143 | XtInheritQueryGeometry, /* query_geometry */ | |
144 | XtInheritDisplayAccelerator, /* display_accelerator */ | |
145 | NULL /* extension */ | |
146 | }, /* XlwMenuClass fields initialization */ | |
147 | { | |
148 | 0 /* dummy */ | |
149 | }, | |
150 | }; | |
151 | ||
152 | WidgetClass xlwMenuWidgetClass = (WidgetClass) &xlwMenuClassRec; | |
153 | ||
d398028f PR |
154 | int submenu_destroyed; |
155 | ||
156 | static int next_release_must_exit; | |
157 | ||
07bf635f RS |
158 | \f/* Utilities */ |
159 | static void | |
d398028f PR |
160 | push_new_stack (mw, val) |
161 | XlwMenuWidget mw; | |
162 | widget_value* val; | |
07bf635f RS |
163 | { |
164 | if (!mw->menu.new_stack) | |
165 | { | |
166 | mw->menu.new_stack_length = 10; | |
167 | mw->menu.new_stack = | |
168 | (widget_value**)XtCalloc (mw->menu.new_stack_length, | |
169 | sizeof (widget_value*)); | |
170 | } | |
171 | else if (mw->menu.new_depth == mw->menu.new_stack_length) | |
172 | { | |
173 | mw->menu.new_stack_length *= 2; | |
174 | mw->menu.new_stack = | |
175 | (widget_value**)XtRealloc ((char*)mw->menu.new_stack, | |
176 | mw->menu.new_stack_length * sizeof (widget_value*)); | |
177 | } | |
178 | mw->menu.new_stack [mw->menu.new_depth++] = val; | |
179 | } | |
180 | ||
181 | static void | |
d398028f PR |
182 | pop_new_stack_if_no_contents (mw) |
183 | XlwMenuWidget mw; | |
07bf635f RS |
184 | { |
185 | if (mw->menu.new_depth) | |
186 | { | |
187 | if (!mw->menu.new_stack [mw->menu.new_depth - 1]->contents) | |
188 | mw->menu.new_depth -= 1; | |
189 | } | |
190 | } | |
191 | ||
192 | static void | |
d398028f PR |
193 | make_old_stack_space (mw, n) |
194 | XlwMenuWidget mw; | |
195 | int n; | |
07bf635f RS |
196 | { |
197 | if (!mw->menu.old_stack) | |
198 | { | |
199 | mw->menu.old_stack_length = 10; | |
200 | mw->menu.old_stack = | |
201 | (widget_value**)XtCalloc (mw->menu.old_stack_length, | |
202 | sizeof (widget_value*)); | |
203 | } | |
204 | else if (mw->menu.old_stack_length < n) | |
205 | { | |
206 | mw->menu.old_stack_length *= 2; | |
207 | mw->menu.old_stack = | |
208 | (widget_value**)XtRealloc ((char*)mw->menu.old_stack, | |
209 | mw->menu.old_stack_length * sizeof (widget_value*)); | |
210 | } | |
211 | } | |
212 | ||
213 | \f/* Size code */ | |
214 | static Boolean | |
d398028f PR |
215 | all_dashes_p (s) |
216 | char *s; | |
07bf635f RS |
217 | { |
218 | char* p; | |
219 | for (p = s; *p == '-'; p++); | |
220 | return !*p; | |
221 | } | |
222 | ||
d398028f PR |
223 | int |
224 | string_width (mw, s) | |
225 | XlwMenuWidget mw; | |
226 | char *s; | |
07bf635f RS |
227 | { |
228 | XCharStruct xcs; | |
229 | int drop; | |
230 | ||
231 | XTextExtents (mw->menu.font, s, strlen (s), &drop, &drop, &drop, &xcs); | |
232 | return xcs.width; | |
233 | } | |
234 | ||
235 | static int | |
d398028f PR |
236 | arrow_width (mw) |
237 | XlwMenuWidget mw; | |
07bf635f RS |
238 | { |
239 | return mw->menu.font->ascent / 2 | 1; | |
240 | } | |
241 | ||
242 | static XtResource | |
243 | nameResource[] = | |
244 | { | |
245 | {"labelString", "LabelString", XtRString, sizeof(String), | |
246 | 0, XtRImmediate, 0}, | |
247 | }; | |
248 | ||
249 | static char* | |
d398028f PR |
250 | resource_widget_value (mw, val) |
251 | XlwMenuWidget mw; | |
252 | widget_value *val; | |
07bf635f RS |
253 | { |
254 | if (!val->toolkit_data) | |
255 | { | |
256 | char* resourced_name = NULL; | |
257 | char* complete_name; | |
258 | XtGetSubresources ((Widget) mw, | |
259 | (XtPointer) &resourced_name, | |
260 | val->name, val->name, | |
261 | nameResource, 1, NULL, 0); | |
262 | if (!resourced_name) | |
263 | resourced_name = val->name; | |
264 | if (!val->value) | |
d97342f3 RS |
265 | { |
266 | complete_name = (char *) XtMalloc (strlen (resourced_name) + 1); | |
267 | strcpy (complete_name, resourced_name); | |
268 | } | |
07bf635f RS |
269 | else |
270 | { | |
271 | int complete_length = | |
272 | strlen (resourced_name) + strlen (val->value) + 2; | |
273 | complete_name = XtMalloc (complete_length); | |
274 | *complete_name = 0; | |
275 | strcat (complete_name, resourced_name); | |
276 | strcat (complete_name, " "); | |
277 | strcat (complete_name, val->value); | |
278 | } | |
279 | ||
280 | val->toolkit_data = complete_name; | |
281 | val->free_toolkit_data = True; | |
282 | } | |
283 | return (char*)val->toolkit_data; | |
284 | } | |
285 | ||
286 | /* Returns the sizes of an item */ | |
287 | static void | |
d398028f PR |
288 | size_menu_item (mw, val, horizontal_p, label_width, rest_width, height) |
289 | XlwMenuWidget mw; | |
290 | widget_value* val; | |
291 | int horizontal_p; | |
292 | int* label_width; | |
293 | int* rest_width; | |
294 | int* height; | |
07bf635f RS |
295 | { |
296 | if (all_dashes_p (val->name)) | |
297 | { | |
298 | *height = 2; | |
299 | *label_width = 1; | |
300 | *rest_width = 0; | |
301 | } | |
302 | else | |
303 | { | |
304 | *height = | |
305 | mw->menu.font->ascent + mw->menu.font->descent | |
306 | + 2 * mw->menu.vertical_spacing + 2 * mw->menu.shadow_thickness; | |
307 | ||
308 | *label_width = | |
309 | string_width (mw, resource_widget_value (mw, val)) | |
310 | + mw->menu.horizontal_spacing + mw->menu.shadow_thickness; | |
311 | ||
312 | *rest_width = mw->menu.horizontal_spacing + mw->menu.shadow_thickness; | |
313 | if (!horizontal_p) | |
314 | { | |
315 | if (val->contents) | |
316 | *rest_width += arrow_width (mw) + mw->menu.arrow_spacing; | |
317 | else if (val->key) | |
318 | *rest_width += | |
319 | string_width (mw, val->key) + mw->menu.arrow_spacing; | |
320 | } | |
321 | } | |
322 | } | |
323 | ||
324 | static void | |
d398028f PR |
325 | size_menu (mw, level) |
326 | XlwMenuWidget mw; | |
327 | int level; | |
07bf635f RS |
328 | { |
329 | int label_width = 0; | |
330 | int rest_width = 0; | |
331 | int max_rest_width = 0; | |
332 | int height = 0; | |
333 | int horizontal_p = mw->menu.horizontal && (level == 0); | |
334 | widget_value* val; | |
335 | window_state* ws; | |
336 | ||
337 | if (level >= mw->menu.old_depth) | |
338 | abort (); | |
339 | ||
340 | ws = &mw->menu.windows [level]; | |
341 | ws->width = 0; | |
342 | ws->height = 0; | |
343 | ws->label_width = 0; | |
344 | ||
345 | for (val = mw->menu.old_stack [level]->contents; val; val = val->next) | |
346 | { | |
347 | size_menu_item (mw, val, horizontal_p, &label_width, &rest_width, | |
348 | &height); | |
349 | if (horizontal_p) | |
350 | { | |
351 | ws->width += label_width + rest_width; | |
352 | if (height > ws->height) | |
353 | ws->height = height; | |
354 | } | |
355 | else | |
356 | { | |
357 | if (label_width > ws->label_width) | |
358 | ws->label_width = label_width; | |
359 | if (rest_width > max_rest_width) | |
360 | max_rest_width = rest_width; | |
361 | ws->height += height; | |
362 | } | |
363 | } | |
364 | ||
365 | if (horizontal_p) | |
366 | ws->label_width = 0; | |
367 | else | |
368 | ws->width = ws->label_width + max_rest_width; | |
369 | ||
370 | ws->width += 2 * mw->menu.shadow_thickness; | |
371 | ws->height += 2 * mw->menu.shadow_thickness; | |
372 | } | |
373 | ||
374 | ||
375 | \f/* Display code */ | |
376 | static void | |
d398028f PR |
377 | draw_arrow (mw, window, gc, x, y, width) |
378 | XlwMenuWidget mw; | |
379 | Window window; | |
380 | GC gc; | |
381 | int x; | |
382 | int y; | |
383 | int width; | |
07bf635f RS |
384 | { |
385 | XPoint points [3]; | |
386 | points [0].x = x; | |
387 | points [0].y = y + mw->menu.font->ascent; | |
388 | points [1].x = x; | |
389 | points [1].y = y; | |
390 | points [2].x = x + width; | |
391 | points [2].y = y + mw->menu.font->ascent / 2; | |
392 | ||
393 | XFillPolygon (XtDisplay (mw), window, gc, points, 3, Convex, | |
394 | CoordModeOrigin); | |
395 | } | |
396 | ||
397 | static void | |
d398028f PR |
398 | draw_shadow_rectangle (mw, window, x, y, width, height, erase_p) |
399 | XlwMenuWidget mw; | |
400 | Window window; | |
401 | int x; | |
402 | int y; | |
403 | int width; | |
404 | int height; | |
405 | int erase_p; | |
07bf635f RS |
406 | { |
407 | Display *dpy = XtDisplay (mw); | |
408 | GC top_gc = !erase_p ? mw->menu.shadow_top_gc : mw->menu.background_gc; | |
409 | GC bottom_gc = !erase_p ? mw->menu.shadow_bottom_gc : mw->menu.background_gc; | |
410 | int thickness = mw->menu.shadow_thickness; | |
411 | XPoint points [4]; | |
412 | points [0].x = x; | |
413 | points [0].y = y; | |
414 | points [1].x = x + width; | |
415 | points [1].y = y; | |
416 | points [2].x = x + width - thickness; | |
417 | points [2].y = y + thickness; | |
418 | points [3].x = x; | |
419 | points [3].y = y + thickness; | |
420 | XFillPolygon (dpy, window, top_gc, points, 4, Convex, CoordModeOrigin); | |
421 | points [0].x = x; | |
422 | points [0].y = y + thickness; | |
423 | points [1].x = x; | |
424 | points [1].y = y + height; | |
425 | points [2].x = x + thickness; | |
426 | points [2].y = y + height - thickness; | |
427 | points [3].x = x + thickness; | |
428 | points [3].y = y + thickness; | |
429 | XFillPolygon (dpy, window, top_gc, points, 4, Convex, CoordModeOrigin); | |
430 | points [0].x = x + width; | |
431 | points [0].y = y; | |
432 | points [1].x = x + width - thickness; | |
433 | points [1].y = y + thickness; | |
434 | points [2].x = x + width - thickness; | |
435 | points [2].y = y + height - thickness; | |
436 | points [3].x = x + width; | |
437 | points [3].y = y + height - thickness; | |
438 | XFillPolygon (dpy, window, bottom_gc, points, 4, Convex, CoordModeOrigin); | |
439 | points [0].x = x; | |
440 | points [0].y = y + height; | |
441 | points [1].x = x + width; | |
442 | points [1].y = y + height; | |
443 | points [2].x = x + width; | |
444 | points [2].y = y + height - thickness; | |
445 | points [3].x = x + thickness; | |
446 | points [3].y = y + height - thickness; | |
447 | XFillPolygon (dpy, window, bottom_gc, points, 4, Convex, CoordModeOrigin); | |
448 | } | |
449 | ||
450 | ||
451 | /* Display the menu item and increment where.x and where.y to show how large | |
452 | ** the menu item was. | |
453 | */ | |
454 | static void | |
d398028f PR |
455 | display_menu_item (mw, val, ws, where, highlighted_p, horizontal_p, just_compute_p) |
456 | XlwMenuWidget mw; | |
457 | widget_value* val; | |
458 | window_state* ws; | |
459 | XPoint* where; | |
460 | Boolean highlighted_p; | |
461 | Boolean horizontal_p; | |
462 | Boolean just_compute_p; | |
07bf635f RS |
463 | { |
464 | GC deco_gc; | |
465 | GC text_gc; | |
466 | int font_ascent = mw->menu.font->ascent; | |
467 | int font_descent = mw->menu.font->descent; | |
468 | int shadow = mw->menu.shadow_thickness; | |
469 | int separator_p = all_dashes_p (val->name); | |
470 | int h_spacing = mw->menu.horizontal_spacing; | |
471 | int v_spacing = mw->menu.vertical_spacing; | |
472 | int label_width; | |
473 | int rest_width; | |
474 | int height; | |
475 | int width; | |
476 | int button_p; | |
477 | ||
478 | /* compute the sizes of the item */ | |
479 | size_menu_item (mw, val, horizontal_p, &label_width, &rest_width, &height); | |
480 | ||
481 | if (horizontal_p) | |
482 | width = label_width + rest_width; | |
483 | else | |
484 | { | |
485 | label_width = ws->label_width; | |
486 | width = ws->width - 2 * shadow; | |
487 | } | |
488 | ||
489 | /* see if it should be a button in the menubar */ | |
490 | button_p = horizontal_p && val->call_data; | |
491 | ||
492 | /* Only highlight an enabled item that has a callback. */ | |
493 | if (highlighted_p) | |
494 | if (!val->enabled || !(val->call_data || val->contents)) | |
495 | highlighted_p = 0; | |
496 | ||
497 | /* do the drawing. */ | |
498 | if (!just_compute_p) | |
499 | { | |
500 | /* Add the shadow border of the containing menu */ | |
501 | int x = where->x + shadow; | |
502 | int y = where->y + shadow; | |
503 | ||
504 | /* pick the foreground and background GC. */ | |
505 | if (val->enabled) | |
506 | text_gc = button_p ? mw->menu.button_gc : mw->menu.foreground_gc; | |
507 | else | |
508 | text_gc = | |
509 | button_p ? mw->menu.inactive_button_gc : mw->menu.inactive_gc; | |
510 | deco_gc = mw->menu.foreground_gc; | |
511 | ||
512 | if (separator_p) | |
513 | { | |
514 | XDrawLine (XtDisplay (mw), ws->window, mw->menu.shadow_bottom_gc, | |
515 | x, y, x + width, y); | |
516 | XDrawLine (XtDisplay (mw), ws->window, mw->menu.shadow_top_gc, | |
517 | x, y + 1, x + width, y + 1); | |
518 | } | |
519 | else | |
520 | { | |
521 | char* display_string = resource_widget_value (mw, val); | |
522 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, True); | |
523 | XDrawString (XtDisplay (mw), ws->window, text_gc, | |
524 | x + h_spacing + shadow, | |
525 | y + v_spacing + shadow + font_ascent, | |
526 | display_string, strlen (display_string)); | |
527 | ||
528 | if (!horizontal_p) | |
529 | { | |
530 | if (val->contents) | |
531 | { | |
532 | int a_w = arrow_width (mw); | |
533 | draw_arrow (mw, ws->window, deco_gc, | |
d398028f PR |
534 | x + width - arrow_width (mw) |
535 | - mw->menu.horizontal_spacing | |
536 | - mw->menu.shadow_thickness, | |
07bf635f RS |
537 | y + v_spacing + shadow, a_w); |
538 | } | |
539 | else if (val->key) | |
540 | { | |
541 | XDrawString (XtDisplay (mw), ws->window, text_gc, | |
542 | x + label_width + mw->menu.arrow_spacing, | |
543 | y + v_spacing + shadow + font_ascent, | |
544 | val->key, strlen (val->key)); | |
545 | } | |
546 | } | |
547 | ||
548 | else if (button_p) | |
549 | { | |
550 | #if 1 | |
551 | XDrawRectangle (XtDisplay (mw), ws->window, deco_gc, | |
552 | x + shadow, y + shadow, | |
553 | label_width + h_spacing - 1, | |
554 | font_ascent + font_descent + 2 * v_spacing - 1); | |
d398028f PR |
555 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, |
556 | False); | |
07bf635f RS |
557 | #else |
558 | highlighted_p = True; | |
559 | #endif | |
560 | } | |
d398028f PR |
561 | else |
562 | { | |
563 | XDrawRectangle (XtDisplay (mw), ws->window, | |
564 | mw->menu.background_gc, | |
565 | x + shadow, y + shadow, | |
566 | label_width + h_spacing - 1, | |
567 | font_ascent + font_descent + 2 * v_spacing - 1); | |
568 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, | |
569 | True); | |
570 | } | |
07bf635f RS |
571 | |
572 | if (highlighted_p) | |
573 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, False); | |
574 | } | |
575 | } | |
576 | ||
577 | where->x += width; | |
578 | where->y += height; | |
579 | } | |
580 | ||
581 | static void | |
d398028f PR |
582 | display_menu (mw, level, just_compute_p, highlighted_pos, hit, hit_return, |
583 | this, that) | |
584 | XlwMenuWidget mw; | |
585 | int level; | |
586 | Boolean just_compute_p; | |
587 | XPoint* highlighted_pos; | |
588 | XPoint* hit; | |
589 | widget_value** hit_return; | |
590 | widget_value* this; | |
591 | widget_value* that; | |
07bf635f RS |
592 | { |
593 | widget_value* val; | |
594 | widget_value* following_item; | |
595 | window_state* ws; | |
596 | XPoint where; | |
597 | int horizontal_p = mw->menu.horizontal && (level == 0); | |
598 | int highlighted_p; | |
599 | int just_compute_this_one_p; | |
600 | ||
601 | if (level >= mw->menu.old_depth) | |
602 | abort (); | |
603 | ||
604 | if (level < mw->menu.old_depth - 1) | |
605 | following_item = mw->menu.old_stack [level + 1]; | |
606 | else | |
607 | following_item = NULL; | |
608 | ||
609 | if (hit) | |
610 | *hit_return = NULL; | |
611 | ||
612 | where.x = 0; | |
613 | where.y = 0; | |
614 | ||
615 | ws = &mw->menu.windows [level]; | |
616 | for (val = mw->menu.old_stack [level]->contents; val; val = val->next) | |
617 | { | |
618 | highlighted_p = val == following_item; | |
619 | if (highlighted_p && highlighted_pos) | |
620 | { | |
621 | if (horizontal_p) | |
622 | highlighted_pos->x = where.x; | |
623 | else | |
624 | highlighted_pos->y = where.y; | |
625 | } | |
626 | ||
627 | just_compute_this_one_p = | |
628 | just_compute_p || ((this || that) && val != this && val != that); | |
629 | ||
630 | display_menu_item (mw, val, ws, &where, highlighted_p, horizontal_p, | |
631 | just_compute_this_one_p); | |
632 | ||
633 | if (highlighted_p && highlighted_pos) | |
634 | { | |
635 | if (horizontal_p) | |
636 | highlighted_pos->y = where.y; | |
637 | else | |
638 | highlighted_pos->x = where.x; | |
639 | } | |
640 | ||
641 | if (hit | |
642 | && !*hit_return | |
643 | && (horizontal_p ? hit->x < where.x : hit->y < where.y) | |
644 | && !all_dashes_p (val->name)) | |
645 | *hit_return = val; | |
646 | ||
647 | if (horizontal_p) | |
648 | where.y = 0; | |
649 | else | |
650 | where.x = 0; | |
651 | } | |
652 | ||
653 | if (!just_compute_p) | |
654 | draw_shadow_rectangle (mw, ws->window, 0, 0, ws->width, ws->height, False); | |
655 | } | |
656 | ||
657 | \f/* Motion code */ | |
658 | static void | |
d398028f PR |
659 | set_new_state (mw, val, level) |
660 | XlwMenuWidget mw; | |
661 | widget_value* val; | |
662 | int level; | |
07bf635f RS |
663 | { |
664 | int i; | |
665 | ||
666 | mw->menu.new_depth = 0; | |
667 | for (i = 0; i < level; i++) | |
668 | push_new_stack (mw, mw->menu.old_stack [i]); | |
669 | push_new_stack (mw, val); | |
670 | } | |
671 | ||
672 | static void | |
d398028f PR |
673 | make_windows_if_needed (mw, n) |
674 | XlwMenuWidget mw; | |
675 | int n; | |
07bf635f RS |
676 | { |
677 | int i; | |
678 | int start_at; | |
679 | XSetWindowAttributes xswa; | |
680 | int mask; | |
681 | Window root = RootWindowOfScreen (DefaultScreenOfDisplay (XtDisplay (mw))); | |
682 | window_state* windows; | |
683 | ||
684 | if (mw->menu.windows_length >= n) | |
685 | return; | |
686 | ||
687 | xswa.save_under = True; | |
688 | xswa.override_redirect = True; | |
689 | xswa.background_pixel = mw->core.background_pixel; | |
690 | xswa.border_pixel = mw->core.border_pixel; | |
691 | xswa.event_mask = | |
d398028f | 692 | ExposureMask | PointerMotionMask | PointerMotionHintMask |
07bf635f RS |
693 | | ButtonReleaseMask | ButtonPressMask; |
694 | xswa.cursor = mw->menu.cursor_shape; | |
695 | mask = CWSaveUnder | CWOverrideRedirect | CWBackPixel | CWBorderPixel | |
696 | | CWEventMask | CWCursor; | |
697 | ||
698 | if (!mw->menu.windows) | |
699 | { | |
700 | mw->menu.windows = | |
701 | (window_state*)XtMalloc (n * sizeof (window_state)); | |
702 | start_at = 0; | |
703 | } | |
704 | else | |
705 | { | |
706 | mw->menu.windows = | |
707 | (window_state*)XtRealloc ((char*)mw->menu.windows, | |
708 | n * sizeof (window_state)); | |
709 | start_at = mw->menu.windows_length; | |
710 | } | |
711 | mw->menu.windows_length = n; | |
712 | ||
713 | windows = mw->menu.windows; | |
714 | ||
715 | for (i = start_at; i < n; i++) | |
716 | { | |
717 | windows [i].x = 0; | |
718 | windows [i].y = 0; | |
719 | windows [i].width = 1; | |
720 | windows [i].height = 1; | |
721 | windows [i].window = | |
722 | XCreateWindow (XtDisplay (mw), root, 0, 0, 1, 1, | |
723 | 0, 0, CopyFromParent, CopyFromParent, mask, &xswa); | |
724 | } | |
725 | } | |
726 | ||
727 | /* Make the window fit in the screen */ | |
728 | static void | |
d398028f PR |
729 | fit_to_screen (mw, ws, previous_ws, horizontal_p) |
730 | XlwMenuWidget mw; | |
731 | window_state* ws; | |
732 | window_state* previous_ws; | |
733 | Boolean horizontal_p; | |
07bf635f RS |
734 | { |
735 | int screen_width = WidthOfScreen (XtScreen (mw)); | |
736 | int screen_height = HeightOfScreen (XtScreen (mw)); | |
737 | ||
738 | if (ws->x < 0) | |
739 | ws->x = 0; | |
740 | else if (ws->x + ws->width > screen_width) | |
741 | { | |
742 | if (!horizontal_p) | |
743 | ws->x = previous_ws->x - ws->width; | |
744 | else | |
745 | ws->x = screen_width - ws->width; | |
746 | } | |
747 | if (ws->y < 0) | |
748 | ws->y = 0; | |
749 | else if (ws->y + ws->height > screen_height) | |
750 | { | |
751 | if (horizontal_p) | |
752 | ws->y = previous_ws->y - ws->height; | |
753 | else | |
754 | ws->y = screen_height - ws->height; | |
755 | } | |
756 | } | |
757 | ||
758 | /* Updates old_stack from new_stack and redisplays. */ | |
759 | static void | |
d398028f PR |
760 | remap_menubar (mw) |
761 | XlwMenuWidget mw; | |
07bf635f RS |
762 | { |
763 | int i; | |
764 | int last_same; | |
765 | XPoint selection_position; | |
766 | int old_depth = mw->menu.old_depth; | |
767 | int new_depth = mw->menu.new_depth; | |
768 | widget_value** old_stack; | |
769 | widget_value** new_stack; | |
770 | window_state* windows; | |
771 | widget_value* old_selection; | |
772 | widget_value* new_selection; | |
773 | ||
774 | /* Check that enough windows and old_stack are ready. */ | |
775 | make_windows_if_needed (mw, new_depth); | |
776 | make_old_stack_space (mw, new_depth); | |
777 | windows = mw->menu.windows; | |
778 | old_stack = mw->menu.old_stack; | |
779 | new_stack = mw->menu.new_stack; | |
780 | ||
781 | /* compute the last identical different entry */ | |
782 | for (i = 1; i < old_depth && i < new_depth; i++) | |
783 | if (old_stack [i] != new_stack [i]) | |
784 | break; | |
785 | last_same = i - 1; | |
786 | ||
787 | /* Memorize the previously selected item to be able to refresh it */ | |
788 | old_selection = last_same + 1 < old_depth ? old_stack [last_same + 1] : NULL; | |
789 | if (old_selection && !old_selection->enabled) | |
790 | old_selection = NULL; | |
791 | new_selection = last_same + 1 < new_depth ? new_stack [last_same + 1] : NULL; | |
792 | if (new_selection && !new_selection->enabled) | |
793 | new_selection = NULL; | |
794 | ||
795 | /* updates old_state from new_state. It has to be done now because | |
796 | display_menu (called below) uses the old_stack to know what to display. */ | |
797 | for (i = last_same + 1; i < new_depth; i++) | |
798 | old_stack [i] = new_stack [i]; | |
799 | mw->menu.old_depth = new_depth; | |
800 | ||
801 | /* refresh the last seletion */ | |
802 | selection_position.x = 0; | |
803 | selection_position.y = 0; | |
804 | display_menu (mw, last_same, new_selection == old_selection, | |
805 | &selection_position, NULL, NULL, old_selection, new_selection); | |
806 | ||
807 | /* Now popup the new menus */ | |
808 | for (i = last_same + 1; i < new_depth && new_stack [i]->contents; i++) | |
809 | { | |
810 | window_state* previous_ws = &windows [i - 1]; | |
811 | window_state* ws = &windows [i]; | |
812 | ||
813 | ws->x = | |
814 | previous_ws->x + selection_position.x + mw->menu.shadow_thickness; | |
815 | if (!mw->menu.horizontal || i > 1) | |
816 | ws->x += mw->menu.shadow_thickness; | |
817 | ws->y = | |
818 | previous_ws->y + selection_position.y + mw->menu.shadow_thickness; | |
819 | ||
820 | size_menu (mw, i); | |
821 | ||
822 | fit_to_screen (mw, ws, previous_ws, mw->menu.horizontal && i == 1); | |
823 | ||
824 | XClearWindow (XtDisplay (mw), ws->window); | |
825 | XMoveResizeWindow (XtDisplay (mw), ws->window, ws->x, ws->y, | |
826 | ws->width, ws->height); | |
827 | XMapRaised (XtDisplay (mw), ws->window); | |
828 | display_menu (mw, i, False, &selection_position, NULL, NULL, NULL, NULL); | |
829 | } | |
830 | ||
831 | /* unmap the menus that popped down */ | |
832 | for (i = new_depth - 1; i < old_depth; i++) | |
833 | if (i >= new_depth || !new_stack [i]->contents) | |
834 | XUnmapWindow (XtDisplay (mw), windows [i].window); | |
835 | } | |
836 | ||
837 | static Boolean | |
d398028f PR |
838 | motion_event_is_in_menu (mw, ev, level, relative_pos) |
839 | XlwMenuWidget mw; | |
840 | XMotionEvent* ev; | |
841 | int level; | |
842 | XPoint* relative_pos; | |
07bf635f RS |
843 | { |
844 | window_state* ws = &mw->menu.windows [level]; | |
845 | int x = level == 0 ? ws->x : ws->x + mw->menu.shadow_thickness; | |
846 | int y = level == 0 ? ws->y : ws->y + mw->menu.shadow_thickness; | |
847 | relative_pos->x = ev->x_root - x; | |
848 | relative_pos->y = ev->y_root - y; | |
849 | return (x < ev->x_root && ev->x_root < x + ws->width | |
850 | && y < ev->y_root && ev->y_root < y + ws->height); | |
851 | } | |
852 | ||
853 | static Boolean | |
d398028f PR |
854 | map_event_to_widget_value (mw, ev, val, level) |
855 | XlwMenuWidget mw; | |
856 | XMotionEvent* ev; | |
857 | widget_value** val; | |
858 | int* level; | |
07bf635f RS |
859 | { |
860 | int i; | |
861 | XPoint relative_pos; | |
862 | window_state* ws; | |
863 | ||
864 | *val = NULL; | |
865 | ||
866 | /* Find the window */ | |
867 | for (i = mw->menu.old_depth - 1; i >= 0; i--) | |
868 | { | |
869 | ws = &mw->menu.windows [i]; | |
870 | if (ws && motion_event_is_in_menu (mw, ev, i, &relative_pos)) | |
871 | { | |
872 | display_menu (mw, i, True, NULL, &relative_pos, val, NULL, NULL); | |
873 | ||
874 | if (*val) | |
875 | { | |
876 | *level = i + 1; | |
877 | return True; | |
878 | } | |
879 | } | |
880 | } | |
881 | return False; | |
882 | } | |
883 | ||
884 | \f/* Procedures */ | |
885 | static void | |
d398028f PR |
886 | make_drawing_gcs (mw) |
887 | XlwMenuWidget mw; | |
07bf635f RS |
888 | { |
889 | XGCValues xgcv; | |
890 | ||
891 | xgcv.font = mw->menu.font->fid; | |
892 | xgcv.foreground = mw->menu.foreground; | |
893 | xgcv.background = mw->core.background_pixel; | |
894 | mw->menu.foreground_gc = XtGetGC ((Widget)mw, | |
895 | GCFont | GCForeground | GCBackground, | |
896 | &xgcv); | |
897 | ||
898 | xgcv.font = mw->menu.font->fid; | |
899 | xgcv.foreground = mw->menu.button_foreground; | |
900 | xgcv.background = mw->core.background_pixel; | |
901 | mw->menu.button_gc = XtGetGC ((Widget)mw, | |
902 | GCFont | GCForeground | GCBackground, | |
903 | &xgcv); | |
904 | ||
905 | xgcv.font = mw->menu.font->fid; | |
906 | xgcv.foreground = mw->menu.foreground; | |
907 | xgcv.background = mw->core.background_pixel; | |
908 | xgcv.fill_style = FillStippled; | |
909 | xgcv.stipple = mw->menu.gray_pixmap; | |
910 | mw->menu.inactive_gc = XtGetGC ((Widget)mw, | |
911 | (GCFont | GCForeground | GCBackground | |
912 | | GCFillStyle | GCStipple), &xgcv); | |
913 | ||
914 | xgcv.font = mw->menu.font->fid; | |
915 | xgcv.foreground = mw->menu.button_foreground; | |
916 | xgcv.background = mw->core.background_pixel; | |
917 | xgcv.fill_style = FillStippled; | |
918 | xgcv.stipple = mw->menu.gray_pixmap; | |
919 | mw->menu.inactive_button_gc = XtGetGC ((Widget)mw, | |
920 | (GCFont | GCForeground | GCBackground | |
921 | | GCFillStyle | GCStipple), &xgcv); | |
922 | ||
923 | xgcv.font = mw->menu.font->fid; | |
924 | xgcv.foreground = mw->core.background_pixel; | |
925 | xgcv.background = mw->menu.foreground; | |
926 | mw->menu.background_gc = XtGetGC ((Widget)mw, | |
927 | GCFont | GCForeground | GCBackground, | |
928 | &xgcv); | |
929 | } | |
930 | ||
931 | static void | |
d398028f PR |
932 | release_drawing_gcs (mw) |
933 | XlwMenuWidget mw; | |
07bf635f RS |
934 | { |
935 | XtReleaseGC ((Widget) mw, mw->menu.foreground_gc); | |
936 | XtReleaseGC ((Widget) mw, mw->menu.button_gc); | |
937 | XtReleaseGC ((Widget) mw, mw->menu.inactive_gc); | |
938 | XtReleaseGC ((Widget) mw, mw->menu.inactive_button_gc); | |
939 | XtReleaseGC ((Widget) mw, mw->menu.background_gc); | |
940 | /* let's get some segvs if we try to use these... */ | |
941 | mw->menu.foreground_gc = (GC) -1; | |
942 | mw->menu.button_gc = (GC) -1; | |
943 | mw->menu.inactive_gc = (GC) -1; | |
944 | mw->menu.inactive_button_gc = (GC) -1; | |
945 | mw->menu.background_gc = (GC) -1; | |
946 | } | |
947 | ||
948 | #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \ | |
949 | ? ((unsigned long) (x)) : ((unsigned long) (y))) | |
950 | ||
951 | static void | |
d398028f PR |
952 | make_shadow_gcs (mw) |
953 | XlwMenuWidget mw; | |
07bf635f RS |
954 | { |
955 | XGCValues xgcv; | |
956 | unsigned long pm = 0; | |
957 | Display *dpy = XtDisplay ((Widget) mw); | |
958 | Colormap cmap = DefaultColormapOfScreen (XtScreen ((Widget) mw)); | |
959 | XColor topc, botc; | |
960 | int top_frobbed = 0, bottom_frobbed = 0; | |
961 | ||
962 | if (mw->menu.top_shadow_color == -1) | |
963 | mw->menu.top_shadow_color = mw->core.background_pixel; | |
964 | if (mw->menu.bottom_shadow_color == -1) | |
965 | mw->menu.bottom_shadow_color = mw->menu.foreground; | |
966 | ||
967 | if (mw->menu.top_shadow_color == mw->core.background_pixel || | |
968 | mw->menu.top_shadow_color == mw->menu.foreground) | |
969 | { | |
970 | topc.pixel = mw->core.background_pixel; | |
971 | XQueryColor (dpy, cmap, &topc); | |
972 | /* don't overflow/wrap! */ | |
973 | topc.red = MINL (65535, topc.red * 1.2); | |
974 | topc.green = MINL (65535, topc.green * 1.2); | |
975 | topc.blue = MINL (65535, topc.blue * 1.2); | |
976 | if (XAllocColor (dpy, cmap, &topc)) | |
977 | { | |
978 | mw->menu.top_shadow_color = topc.pixel; | |
979 | top_frobbed = 1; | |
980 | } | |
981 | } | |
982 | if (mw->menu.bottom_shadow_color == mw->menu.foreground || | |
983 | mw->menu.bottom_shadow_color == mw->core.background_pixel) | |
984 | { | |
985 | botc.pixel = mw->core.background_pixel; | |
986 | XQueryColor (dpy, cmap, &botc); | |
987 | botc.red *= 0.6; | |
988 | botc.green *= 0.6; | |
989 | botc.blue *= 0.6; | |
990 | if (XAllocColor (dpy, cmap, &botc)) | |
991 | { | |
992 | mw->menu.bottom_shadow_color = botc.pixel; | |
993 | bottom_frobbed = 1; | |
994 | } | |
995 | } | |
996 | ||
997 | if (top_frobbed && bottom_frobbed) | |
998 | { | |
999 | int top_avg = ((topc.red / 3) + (topc.green / 3) + (topc.blue / 3)); | |
1000 | int bot_avg = ((botc.red / 3) + (botc.green / 3) + (botc.blue / 3)); | |
1001 | if (bot_avg > top_avg) | |
1002 | { | |
1003 | Pixel tmp = mw->menu.top_shadow_color; | |
1004 | mw->menu.top_shadow_color = mw->menu.bottom_shadow_color; | |
1005 | mw->menu.bottom_shadow_color = tmp; | |
1006 | } | |
1007 | else if (topc.pixel == botc.pixel) | |
1008 | { | |
1009 | if (botc.pixel == mw->menu.foreground) | |
1010 | mw->menu.top_shadow_color = mw->core.background_pixel; | |
1011 | else | |
1012 | mw->menu.bottom_shadow_color = mw->menu.foreground; | |
1013 | } | |
1014 | } | |
1015 | ||
1016 | if (!mw->menu.top_shadow_pixmap && | |
1017 | mw->menu.top_shadow_color == mw->core.background_pixel) | |
1018 | { | |
1019 | mw->menu.top_shadow_pixmap = mw->menu.gray_pixmap; | |
1020 | mw->menu.top_shadow_color = mw->menu.foreground; | |
1021 | } | |
1022 | if (!mw->menu.bottom_shadow_pixmap && | |
1023 | mw->menu.bottom_shadow_color == mw->core.background_pixel) | |
1024 | { | |
1025 | mw->menu.bottom_shadow_pixmap = mw->menu.gray_pixmap; | |
1026 | mw->menu.bottom_shadow_color = mw->menu.foreground; | |
1027 | } | |
1028 | ||
1029 | xgcv.fill_style = FillStippled; | |
1030 | xgcv.foreground = mw->menu.top_shadow_color; | |
1031 | xgcv.stipple = mw->menu.top_shadow_pixmap; | |
1032 | pm = (xgcv.stipple ? GCStipple|GCFillStyle : 0); | |
1033 | mw->menu.shadow_top_gc = XtGetGC ((Widget)mw, GCForeground | pm, &xgcv); | |
1034 | ||
1035 | xgcv.foreground = mw->menu.bottom_shadow_color; | |
1036 | xgcv.stipple = mw->menu.bottom_shadow_pixmap; | |
1037 | pm = (xgcv.stipple ? GCStipple|GCFillStyle : 0); | |
1038 | mw->menu.shadow_bottom_gc = XtGetGC ((Widget)mw, GCForeground | pm, &xgcv); | |
1039 | } | |
1040 | ||
1041 | ||
1042 | static void | |
d398028f PR |
1043 | release_shadow_gcs (mw) |
1044 | XlwMenuWidget mw; | |
07bf635f RS |
1045 | { |
1046 | XtReleaseGC ((Widget) mw, mw->menu.shadow_top_gc); | |
1047 | XtReleaseGC ((Widget) mw, mw->menu.shadow_bottom_gc); | |
1048 | } | |
1049 | ||
1050 | static void | |
d398028f PR |
1051 | XlwMenuInitialize (request, new, args, num_args) |
1052 | Widget request; | |
1053 | Widget new; | |
1054 | ArgList args; | |
1055 | Cardinal *num_args; | |
07bf635f RS |
1056 | { |
1057 | /* Get the GCs and the widget size */ | |
1058 | XlwMenuWidget mw = (XlwMenuWidget)new; | |
1059 | ||
1060 | XSetWindowAttributes xswa; | |
1061 | int mask; | |
1062 | ||
1063 | Window window = RootWindowOfScreen (DefaultScreenOfDisplay (XtDisplay (mw))); | |
1064 | Display* display = XtDisplay (mw); | |
1065 | ||
d398028f PR |
1066 | #if 0 |
1067 | widget_value *tem = (widget_value *) XtMalloc (sizeof (widget_value)); | |
1068 | ||
1069 | /* _XtCreate is freeing the object that was passed to us, | |
1070 | so make a copy that we will actually keep. */ | |
1071 | lwlib_bcopy (mw->menu.contents, tem, sizeof (widget_value)); | |
1072 | mw->menu.contents = tem; | |
1073 | #endif | |
1074 | ||
07bf635f RS |
1075 | /* mw->menu.cursor = XCreateFontCursor (display, mw->menu.cursor_shape); */ |
1076 | mw->menu.cursor = mw->menu.cursor_shape; | |
1077 | ||
1078 | mw->menu.gray_pixmap = XCreatePixmapFromBitmapData (display, window, | |
1079 | gray_bits, gray_width, | |
1080 | gray_height, 1, 0, 1); | |
1081 | ||
1082 | make_drawing_gcs (mw); | |
1083 | make_shadow_gcs (mw); | |
1084 | ||
1085 | xswa.background_pixel = mw->core.background_pixel; | |
1086 | xswa.border_pixel = mw->core.border_pixel; | |
1087 | mask = CWBackPixel | CWBorderPixel; | |
1088 | ||
1089 | mw->menu.popped_up = False; | |
1090 | ||
1091 | mw->menu.old_depth = 1; | |
1092 | mw->menu.old_stack = (widget_value**)XtMalloc (sizeof (widget_value*)); | |
1093 | mw->menu.old_stack_length = 1; | |
1094 | mw->menu.old_stack [0] = mw->menu.contents; | |
1095 | ||
1096 | mw->menu.new_depth = 0; | |
1097 | mw->menu.new_stack = 0; | |
1098 | mw->menu.new_stack_length = 0; | |
1099 | push_new_stack (mw, mw->menu.contents); | |
1100 | ||
1101 | mw->menu.windows = (window_state*)XtMalloc (sizeof (window_state)); | |
1102 | mw->menu.windows_length = 1; | |
1103 | mw->menu.windows [0].x = 0; | |
1104 | mw->menu.windows [0].y = 0; | |
1105 | mw->menu.windows [0].width = 0; | |
1106 | mw->menu.windows [0].height = 0; | |
1107 | size_menu (mw, 0); | |
1108 | ||
1109 | mw->core.width = mw->menu.windows [0].width; | |
1110 | mw->core.height = mw->menu.windows [0].height; | |
1111 | } | |
1112 | ||
1113 | static void | |
1114 | XlwMenuClassInitialize () | |
1115 | { | |
1116 | } | |
1117 | ||
1118 | static void | |
d398028f PR |
1119 | XlwMenuRealize (w, valueMask, attributes) |
1120 | Widget w; | |
1121 | Mask *valueMask; | |
1122 | XSetWindowAttributes *attributes; | |
07bf635f RS |
1123 | { |
1124 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1125 | XSetWindowAttributes xswa; | |
1126 | int mask; | |
1127 | ||
1128 | (*xlwMenuWidgetClass->core_class.superclass->core_class.realize) | |
1129 | (w, valueMask, attributes); | |
1130 | ||
1131 | xswa.save_under = True; | |
1132 | xswa.cursor = mw->menu.cursor_shape; | |
1133 | mask = CWSaveUnder | CWCursor; | |
1134 | XChangeWindowAttributes (XtDisplay (w), XtWindow (w), mask, &xswa); | |
1135 | ||
1136 | mw->menu.windows [0].window = XtWindow (w); | |
1137 | mw->menu.windows [0].x = w->core.x; | |
1138 | mw->menu.windows [0].y = w->core.y; | |
1139 | mw->menu.windows [0].width = w->core.width; | |
1140 | mw->menu.windows [0].height = w->core.height; | |
1141 | } | |
1142 | ||
1143 | /* Only the toplevel menubar/popup is a widget so it's the only one that | |
1144 | receives expose events through Xt. So we repaint all the other panes | |
1145 | when receiving an Expose event. */ | |
1146 | static void | |
d398028f PR |
1147 | XlwMenuRedisplay (w, ev, region) |
1148 | Widget w; | |
1149 | XEvent* ev; | |
1150 | Region region; | |
07bf635f RS |
1151 | { |
1152 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1153 | int i; | |
1154 | ||
d398028f PR |
1155 | /* If we have a depth beyond 1, it's because a submenu was displayed. |
1156 | If the submenu has been destroyed, set the depth back to 1. */ | |
1157 | if (submenu_destroyed) | |
1158 | { | |
1159 | mw->menu.old_depth = 1; | |
1160 | submenu_destroyed = 0; | |
1161 | } | |
1162 | ||
07bf635f RS |
1163 | for (i = 0; i < mw->menu.old_depth; i++) |
1164 | display_menu (mw, i, False, NULL, NULL, NULL, NULL, NULL); | |
1165 | } | |
1166 | ||
1167 | static void | |
d398028f PR |
1168 | XlwMenuDestroy (w) |
1169 | Widget w; | |
07bf635f RS |
1170 | { |
1171 | int i; | |
1172 | XlwMenuWidget mw = (XlwMenuWidget) w; | |
1173 | ||
d398028f PR |
1174 | if (pointer_grabbed) |
1175 | XtUngrabPointer ((Widget)w, CurrentTime); | |
1176 | pointer_grabbed = 0; | |
1177 | ||
1178 | submenu_destroyed = 1; | |
1179 | ||
07bf635f RS |
1180 | release_drawing_gcs (mw); |
1181 | release_shadow_gcs (mw); | |
1182 | ||
1183 | /* this doesn't come from the resource db but is created explicitly | |
1184 | so we must free it ourselves. */ | |
1185 | XFreePixmap (XtDisplay (mw), mw->menu.gray_pixmap); | |
1186 | mw->menu.gray_pixmap = (Pixmap) -1; | |
1187 | ||
d398028f PR |
1188 | #if 0 |
1189 | /* Do free mw->menu.contents because nowadays we copy it | |
1190 | during initialization. */ | |
1191 | XtFree (mw->menu.contents); | |
1192 | #endif | |
1193 | ||
07bf635f RS |
1194 | /* Don't free mw->menu.contents because that comes from our creator. |
1195 | The `*_stack' elements are just pointers into `contents' so leave | |
1196 | that alone too. But free the stacks themselves. */ | |
1197 | if (mw->menu.old_stack) XtFree ((char *) mw->menu.old_stack); | |
1198 | if (mw->menu.new_stack) XtFree ((char *) mw->menu.new_stack); | |
1199 | ||
1200 | /* Remember, you can't free anything that came from the resource | |
1201 | database. This includes: | |
1202 | mw->menu.cursor | |
1203 | mw->menu.top_shadow_pixmap | |
1204 | mw->menu.bottom_shadow_pixmap | |
1205 | mw->menu.font | |
1206 | Also the color cells of top_shadow_color, bottom_shadow_color, | |
1207 | foreground, and button_foreground will never be freed until this | |
1208 | client exits. Nice, eh? | |
1209 | */ | |
1210 | ||
1211 | /* start from 1 because the one in slot 0 is w->core.window */ | |
1212 | for (i = 1; i < mw->menu.windows_length; i++) | |
1213 | XDestroyWindow (XtDisplay (mw), mw->menu.windows [i].window); | |
1214 | if (mw->menu.windows) | |
1215 | XtFree ((char *) mw->menu.windows); | |
1216 | } | |
1217 | ||
1218 | static Boolean | |
d398028f PR |
1219 | XlwMenuSetValues (current, request, new) |
1220 | Widget current; | |
1221 | Widget request; | |
1222 | Widget new; | |
07bf635f RS |
1223 | { |
1224 | XlwMenuWidget oldmw = (XlwMenuWidget)current; | |
1225 | XlwMenuWidget newmw = (XlwMenuWidget)new; | |
1226 | Boolean redisplay = False; | |
1227 | int i; | |
1228 | ||
1229 | if (newmw->menu.contents | |
1230 | && newmw->menu.contents->contents | |
1231 | && newmw->menu.contents->contents->change >= VISIBLE_CHANGE) | |
1232 | redisplay = True; | |
1233 | ||
1234 | if (newmw->core.background_pixel != oldmw->core.background_pixel | |
d398028f PR |
1235 | || newmw->menu.foreground != oldmw->menu.foreground |
1236 | || newmw->menu.font != oldmw->menu.font) | |
07bf635f RS |
1237 | { |
1238 | release_drawing_gcs (newmw); | |
1239 | make_drawing_gcs (newmw); | |
1240 | redisplay = True; | |
1241 | ||
1242 | for (i = 0; i < oldmw->menu.windows_length; i++) | |
1243 | { | |
1244 | XSetWindowBackground (XtDisplay (oldmw), | |
1245 | oldmw->menu.windows [i].window, | |
1246 | newmw->core.background_pixel); | |
1247 | /* clear windows and generate expose events */ | |
1248 | XClearArea (XtDisplay (oldmw), oldmw->menu.windows[i].window, | |
1249 | 0, 0, 0, 0, True); | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | return redisplay; | |
1254 | } | |
1255 | ||
1256 | static void | |
d398028f PR |
1257 | XlwMenuResize (w) |
1258 | Widget w; | |
07bf635f RS |
1259 | { |
1260 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1261 | ||
d398028f PR |
1262 | if (mw->menu.popped_up) |
1263 | { | |
1264 | /* Don't allow the popup menu to resize itself. */ | |
1265 | mw->core.width = mw->menu.windows [0].width; | |
1266 | mw->core.height = mw->menu.windows [0].height; | |
1267 | mw->core.parent->core.width = mw->core.width ; | |
1268 | mw->core.parent->core.height = mw->core.height ; | |
1269 | } | |
1270 | else | |
1271 | { | |
1272 | mw->menu.windows [0].width = mw->core.width; | |
1273 | mw->menu.windows [0].height = mw->core.height; | |
1274 | } | |
07bf635f RS |
1275 | } |
1276 | ||
1277 | \f/* Action procedures */ | |
1278 | static void | |
d398028f PR |
1279 | handle_single_motion_event (mw, ev) |
1280 | XlwMenuWidget mw; | |
1281 | XMotionEvent* ev; | |
07bf635f RS |
1282 | { |
1283 | widget_value* val; | |
1284 | int level; | |
1285 | ||
1286 | if (!map_event_to_widget_value (mw, ev, &val, &level)) | |
1287 | pop_new_stack_if_no_contents (mw); | |
1288 | else | |
1289 | set_new_state (mw, val, level); | |
1290 | remap_menubar (mw); | |
1291 | ||
45d91af4 | 1292 | #if 1 |
07bf635f RS |
1293 | /* Sync with the display. Makes it feel better on X terms. */ |
1294 | XSync (XtDisplay (mw), False); | |
d398028f | 1295 | #endif |
07bf635f RS |
1296 | } |
1297 | ||
1298 | static void | |
d398028f PR |
1299 | handle_motion_event (mw, ev) |
1300 | XlwMenuWidget mw; | |
1301 | XMotionEvent* ev; | |
07bf635f RS |
1302 | { |
1303 | int x = ev->x_root; | |
1304 | int y = ev->y_root; | |
1305 | int state = ev->state; | |
1306 | ||
1307 | handle_single_motion_event (mw, ev); | |
1308 | ||
1309 | /* allow motion events to be generated again */ | |
45d91af4 | 1310 | #if 0 |
07bf635f RS |
1311 | if (ev->is_hint |
1312 | && XQueryPointer (XtDisplay (mw), ev->window, | |
1313 | &ev->root, &ev->subwindow, | |
1314 | &ev->x_root, &ev->y_root, | |
1315 | &ev->x, &ev->y, | |
1316 | &ev->state) | |
1317 | && ev->state == state | |
1318 | && (ev->x_root != x || ev->y_root != y)) | |
1319 | handle_single_motion_event (mw, ev); | |
45d91af4 PR |
1320 | #else |
1321 | XQueryPointer (XtDisplay (mw), ev->window, | |
1322 | &ev->root, &ev->subwindow, | |
1323 | &ev->x_root, &ev->y_root, | |
1324 | &ev->x, &ev->y, | |
1325 | &ev->state); | |
1326 | handle_single_motion_event (mw, ev); | |
1327 | #endif | |
07bf635f RS |
1328 | } |
1329 | ||
1330 | static void | |
d398028f PR |
1331 | Start (w, ev, params, num_params) |
1332 | Widget w; | |
1333 | XEvent *ev; | |
1334 | String *params; | |
1335 | Cardinal *num_params; | |
07bf635f RS |
1336 | { |
1337 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1338 | ||
d398028f PR |
1339 | if (!mw->menu.popped_up) |
1340 | { | |
1341 | menu_post_event = *ev; | |
4cc76151 | 1342 | pop_up_menu (mw, ev); |
d398028f PR |
1343 | } |
1344 | else | |
4cc76151 PR |
1345 | { |
1346 | /* If we push a button while the menu is posted semipermanently, | |
1347 | releasing the button should always pop the menu down. */ | |
1348 | next_release_must_exit = 1; | |
d398028f | 1349 | |
4cc76151 PR |
1350 | /* notes the absolute position of the menubar window */ |
1351 | mw->menu.windows [0].x = ev->xmotion.x_root - ev->xmotion.x; | |
1352 | mw->menu.windows [0].y = ev->xmotion.y_root - ev->xmotion.y; | |
07bf635f | 1353 | |
4cc76151 PR |
1354 | /* handles the down like a move, slots are compatible */ |
1355 | handle_motion_event (mw, &ev->xmotion); | |
1356 | } | |
07bf635f RS |
1357 | } |
1358 | ||
1359 | static void | |
d398028f PR |
1360 | Drag (w, ev, params, num_params) |
1361 | Widget w; | |
1362 | XEvent *ev; | |
1363 | String *params; | |
1364 | Cardinal *num_params; | |
07bf635f RS |
1365 | { |
1366 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1367 | handle_motion_event (mw, &ev->xmotion); | |
1368 | } | |
1369 | ||
1370 | static void | |
d398028f PR |
1371 | Select (w, ev, params, num_params) |
1372 | Widget w; | |
1373 | XEvent *ev; | |
1374 | String *params; | |
1375 | Cardinal *num_params; | |
07bf635f RS |
1376 | { |
1377 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1378 | widget_value* selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; | |
1379 | ||
d398028f PR |
1380 | /* If user releases the button quickly, without selecting anything, |
1381 | after the initial down-click that brought the menu up, | |
1382 | do nothing. */ | |
1383 | if ((selected_item == 0 | |
1384 | || ((widget_value *) selected_item)->call_data == 0) | |
1385 | && !next_release_must_exit | |
1386 | && (ev->xbutton.time - menu_post_event.xbutton.time | |
1387 | < XtGetMultiClickTime (XtDisplay (w)))) | |
1388 | return; | |
1389 | ||
1390 | /* pop down everything. */ | |
07bf635f RS |
1391 | mw->menu.new_depth = 1; |
1392 | remap_menubar (mw); | |
1393 | ||
1394 | if (mw->menu.popped_up) | |
1395 | { | |
1396 | mw->menu.popped_up = False; | |
1397 | XtUngrabPointer ((Widget)mw, ev->xmotion.time); | |
2289f3f4 PR |
1398 | if (XtIsShell (XtParent ((Widget) mw))) |
1399 | XtPopdown (XtParent ((Widget) mw)); | |
4cc76151 PR |
1400 | else |
1401 | { | |
1402 | XtRemoveGrab ((Widget) mw); | |
1403 | display_menu (mw, 0, False, NULL, NULL, NULL, NULL, NULL); | |
1404 | } | |
07bf635f RS |
1405 | } |
1406 | ||
1407 | /* callback */ | |
1408 | XtCallCallbackList ((Widget)mw, mw->menu.select, (XtPointer)selected_item); | |
07bf635f RS |
1409 | } |
1410 | ||
1411 | ||
1412 | \f/* Special code to pop-up a menu */ | |
1413 | void | |
d398028f PR |
1414 | pop_up_menu (mw, event) |
1415 | XlwMenuWidget mw; | |
1416 | XButtonPressedEvent* event; | |
07bf635f RS |
1417 | { |
1418 | int x = event->x_root; | |
1419 | int y = event->y_root; | |
1420 | int w; | |
1421 | int h; | |
1422 | int borderwidth = mw->menu.shadow_thickness; | |
1423 | Screen* screen = XtScreen (mw); | |
1424 | ||
d398028f PR |
1425 | next_release_must_exit = 0; |
1426 | ||
07bf635f RS |
1427 | XtCallCallbackList ((Widget)mw, mw->menu.open, NULL); |
1428 | ||
2289f3f4 | 1429 | if (XtIsShell (XtParent ((Widget)mw))) |
4cc76151 | 1430 | size_menu (mw, 0); |
07bf635f RS |
1431 | |
1432 | w = mw->menu.windows [0].width; | |
1433 | h = mw->menu.windows [0].height; | |
1434 | ||
1435 | x -= borderwidth; | |
1436 | y -= borderwidth; | |
1437 | if (x < borderwidth) | |
1438 | x = borderwidth; | |
1439 | if (x + w + 2 * borderwidth > WidthOfScreen (screen)) | |
1440 | x = WidthOfScreen (screen) - w - 2 * borderwidth; | |
1441 | if (y < borderwidth) | |
1442 | y = borderwidth; | |
1443 | if (y + h + 2 * borderwidth> HeightOfScreen (screen)) | |
1444 | y = HeightOfScreen (screen) - h - 2 * borderwidth; | |
1445 | ||
1446 | mw->menu.popped_up = True; | |
2289f3f4 | 1447 | if (XtIsShell (XtParent ((Widget)mw))) |
4cc76151 | 1448 | { |
2289f3f4 PR |
1449 | XtConfigureWidget (XtParent ((Widget)mw), x, y, w, h, |
1450 | XtParent ((Widget)mw)->core.border_width); | |
1451 | XtPopup (XtParent ((Widget)mw), XtGrabExclusive); | |
4cc76151 PR |
1452 | display_menu (mw, 0, False, NULL, NULL, NULL, NULL, NULL); |
1453 | mw->menu.windows [0].x = x + borderwidth; | |
1454 | mw->menu.windows [0].y = y + borderwidth; | |
1455 | } | |
1456 | else | |
1457 | { | |
1458 | XEvent *ev = (XEvent *) event; | |
1459 | ||
d35cf493 PR |
1460 | if (!disable_add_grab) |
1461 | XtAddGrab ((Widget) mw, True, True); | |
4cc76151 PR |
1462 | |
1463 | /* notes the absolute position of the menubar window */ | |
1464 | mw->menu.windows [0].x = ev->xmotion.x_root - ev->xmotion.x; | |
1465 | mw->menu.windows [0].y = ev->xmotion.y_root - ev->xmotion.y; | |
1466 | } | |
1467 | ||
d398028f PR |
1468 | #ifdef emacs |
1469 | x_catch_errors (); | |
1470 | #endif | |
d35cf493 PR |
1471 | if (!disable_grab_pointer) |
1472 | { | |
1473 | XtGrabPointer ((Widget)mw, False, | |
1474 | (PointerMotionMask | |
1475 | | PointerMotionHintMask | |
1476 | | ButtonReleaseMask | |
1477 | | ButtonPressMask), | |
1478 | GrabModeAsync, GrabModeAsync, None, | |
1479 | mw->menu.cursor_shape, | |
1480 | event->time); | |
1481 | pointer_grabbed = 1; | |
1482 | } | |
d398028f PR |
1483 | #ifdef emacs |
1484 | if (x_had_errors_p ()) | |
1485 | { | |
1486 | pointer_grabbed = 0; | |
1487 | XtUngrabPointer ((Widget)mw, event->time); | |
1488 | } | |
1489 | x_uncatch_errors (); | |
1490 | #endif | |
07bf635f | 1491 | |
07bf635f RS |
1492 | handle_motion_event (mw, (XMotionEvent*)event); |
1493 | } | |
45d91af4 PR |
1494 | |
1495 | void GetWindowAttributes (w) | |
1496 | Widget w; | |
1497 | { | |
1498 | XWindowAttributes attrs; | |
1499 | ||
1500 | XGetWindowAttributes (XtDisplay (w), | |
1501 | XtWindow (w), | |
1502 | &attrs); | |
1503 | } |