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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 PR |
32 | |
33 | static int pointer_grabbed; | |
34 | static XEvent menu_post_event; | |
07bf635f RS |
35 | |
36 | static char | |
37 | xlwMenuTranslations [] = | |
38 | "<BtnDown>: start()\n\ | |
d398028f | 39 | <Motion>: drag()\n\ |
07bf635f RS |
40 | <BtnUp>: select()\n\ |
41 | "; | |
42 | ||
43 | #define offset(field) XtOffset(XlwMenuWidget, field) | |
44 | static XtResource | |
45 | xlwMenuResources[] = | |
46 | { | |
47 | {XtNfont, XtCFont, XtRFontStruct, sizeof(XFontStruct *), | |
48 | offset(menu.font),XtRString, "XtDefaultFont"}, | |
49 | {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel), | |
50 | offset(menu.foreground), XtRString, "XtDefaultForeground"}, | |
51 | {XtNbuttonForeground, XtCButtonForeground, XtRPixel, sizeof(Pixel), | |
52 | offset(menu.button_foreground), XtRString, "XtDefaultForeground"}, | |
53 | {XtNmargin, XtCMargin, XtRDimension, sizeof(Dimension), | |
54 | offset(menu.margin), XtRImmediate, (XtPointer)0}, | |
55 | {XtNhorizontalSpacing, XtCMargin, XtRDimension, sizeof(Dimension), | |
56 | offset(menu.horizontal_spacing), XtRImmediate, (XtPointer)3}, | |
57 | {XtNverticalSpacing, XtCMargin, XtRDimension, sizeof(Dimension), | |
58 | offset(menu.vertical_spacing), XtRImmediate, (XtPointer)1}, | |
59 | {XtNarrowSpacing, XtCMargin, XtRDimension, sizeof(Dimension), | |
60 | offset(menu.arrow_spacing), XtRImmediate, (XtPointer)10}, | |
61 | ||
d398028f | 62 | {XmNshadowThickness, XmCShadowThickness, XtRDimension, |
07bf635f RS |
63 | sizeof (Dimension), offset (menu.shadow_thickness), |
64 | XtRImmediate, (XtPointer) 2}, | |
65 | {XmNtopShadowColor, XmCTopShadowColor, XtRPixel, sizeof (Pixel), | |
66 | offset (menu.top_shadow_color), XtRImmediate, (XtPointer)-1}, | |
67 | {XmNbottomShadowColor, XmCBottomShadowColor, XtRPixel, sizeof (Pixel), | |
68 | offset (menu.bottom_shadow_color), XtRImmediate, (XtPointer)-1}, | |
69 | {XmNtopShadowPixmap, XmCTopShadowPixmap, XtRPixmap, sizeof (Pixmap), | |
70 | offset (menu.top_shadow_pixmap), XtRImmediate, (XtPointer)None}, | |
71 | {XmNbottomShadowPixmap, XmCBottomShadowPixmap, XtRPixmap, sizeof (Pixmap), | |
72 | offset (menu.bottom_shadow_pixmap), XtRImmediate, (XtPointer)None}, | |
73 | ||
74 | {XtNopen, XtCCallback, XtRCallback, sizeof(XtPointer), | |
75 | offset(menu.open), XtRCallback, (XtPointer)NULL}, | |
76 | {XtNselect, XtCCallback, XtRCallback, sizeof(XtPointer), | |
77 | offset(menu.select), XtRCallback, (XtPointer)NULL}, | |
78 | {XtNmenu, XtCMenu, XtRPointer, sizeof(XtPointer), | |
79 | offset(menu.contents), XtRImmediate, (XtPointer)NULL}, | |
80 | {XtNcursor, XtCCursor, XtRCursor, sizeof(Cursor), | |
81 | offset(menu.cursor_shape), XtRString, (XtPointer)"right_ptr"}, | |
82 | {XtNhorizontal, XtCHorizontal, XtRInt, sizeof(int), | |
83 | offset(menu.horizontal), XtRImmediate, (XtPointer)True}, | |
84 | }; | |
85 | #undef offset | |
86 | ||
87 | static Boolean XlwMenuSetValues(); | |
88 | static void XlwMenuRealize(); | |
89 | static void XlwMenuRedisplay(); | |
90 | static void XlwMenuResize(); | |
91 | static void XlwMenuInitialize(); | |
92 | static void XlwMenuRedisplay(); | |
93 | static void XlwMenuDestroy(); | |
94 | static void XlwMenuClassInitialize(); | |
95 | static void Start(); | |
96 | static void Drag(); | |
97 | static void Select(); | |
98 | ||
99 | static XtActionsRec | |
100 | xlwMenuActionsList [] = | |
101 | { | |
102 | {"start", Start}, | |
103 | {"drag", Drag}, | |
104 | {"select", Select}, | |
105 | }; | |
106 | ||
107 | #define SuperClass ((CoreWidgetClass)&coreClassRec) | |
108 | ||
109 | XlwMenuClassRec xlwMenuClassRec = | |
110 | { | |
111 | { /* CoreClass fields initialization */ | |
112 | (WidgetClass) SuperClass, /* superclass */ | |
113 | "XlwMenu", /* class_name */ | |
114 | sizeof(XlwMenuRec), /* size */ | |
115 | XlwMenuClassInitialize, /* class_initialize */ | |
116 | NULL, /* class_part_initialize */ | |
117 | FALSE, /* class_inited */ | |
118 | XlwMenuInitialize, /* initialize */ | |
119 | NULL, /* initialize_hook */ | |
120 | XlwMenuRealize, /* realize */ | |
121 | xlwMenuActionsList, /* actions */ | |
122 | XtNumber(xlwMenuActionsList), /* num_actions */ | |
123 | xlwMenuResources, /* resources */ | |
124 | XtNumber(xlwMenuResources), /* resource_count */ | |
125 | NULLQUARK, /* xrm_class */ | |
126 | TRUE, /* compress_motion */ | |
127 | TRUE, /* compress_exposure */ | |
128 | TRUE, /* compress_enterleave */ | |
129 | FALSE, /* visible_interest */ | |
130 | XlwMenuDestroy, /* destroy */ | |
131 | XlwMenuResize, /* resize */ | |
132 | XlwMenuRedisplay, /* expose */ | |
133 | XlwMenuSetValues, /* set_values */ | |
134 | NULL, /* set_values_hook */ | |
135 | XtInheritSetValuesAlmost, /* set_values_almost */ | |
136 | NULL, /* get_values_hook */ | |
137 | NULL, /* accept_focus */ | |
138 | XtVersion, /* version */ | |
139 | NULL, /* callback_private */ | |
140 | xlwMenuTranslations, /* tm_table */ | |
141 | XtInheritQueryGeometry, /* query_geometry */ | |
142 | XtInheritDisplayAccelerator, /* display_accelerator */ | |
143 | NULL /* extension */ | |
144 | }, /* XlwMenuClass fields initialization */ | |
145 | { | |
146 | 0 /* dummy */ | |
147 | }, | |
148 | }; | |
149 | ||
150 | WidgetClass xlwMenuWidgetClass = (WidgetClass) &xlwMenuClassRec; | |
151 | ||
d398028f PR |
152 | int submenu_destroyed; |
153 | ||
154 | static int next_release_must_exit; | |
155 | ||
07bf635f RS |
156 | \f/* Utilities */ |
157 | static void | |
d398028f PR |
158 | push_new_stack (mw, val) |
159 | XlwMenuWidget mw; | |
160 | widget_value* val; | |
07bf635f RS |
161 | { |
162 | if (!mw->menu.new_stack) | |
163 | { | |
164 | mw->menu.new_stack_length = 10; | |
165 | mw->menu.new_stack = | |
166 | (widget_value**)XtCalloc (mw->menu.new_stack_length, | |
167 | sizeof (widget_value*)); | |
168 | } | |
169 | else if (mw->menu.new_depth == mw->menu.new_stack_length) | |
170 | { | |
171 | mw->menu.new_stack_length *= 2; | |
172 | mw->menu.new_stack = | |
173 | (widget_value**)XtRealloc ((char*)mw->menu.new_stack, | |
174 | mw->menu.new_stack_length * sizeof (widget_value*)); | |
175 | } | |
176 | mw->menu.new_stack [mw->menu.new_depth++] = val; | |
177 | } | |
178 | ||
179 | static void | |
d398028f PR |
180 | pop_new_stack_if_no_contents (mw) |
181 | XlwMenuWidget mw; | |
07bf635f RS |
182 | { |
183 | if (mw->menu.new_depth) | |
184 | { | |
185 | if (!mw->menu.new_stack [mw->menu.new_depth - 1]->contents) | |
186 | mw->menu.new_depth -= 1; | |
187 | } | |
188 | } | |
189 | ||
190 | static void | |
d398028f PR |
191 | make_old_stack_space (mw, n) |
192 | XlwMenuWidget mw; | |
193 | int n; | |
07bf635f RS |
194 | { |
195 | if (!mw->menu.old_stack) | |
196 | { | |
197 | mw->menu.old_stack_length = 10; | |
198 | mw->menu.old_stack = | |
199 | (widget_value**)XtCalloc (mw->menu.old_stack_length, | |
200 | sizeof (widget_value*)); | |
201 | } | |
202 | else if (mw->menu.old_stack_length < n) | |
203 | { | |
204 | mw->menu.old_stack_length *= 2; | |
205 | mw->menu.old_stack = | |
206 | (widget_value**)XtRealloc ((char*)mw->menu.old_stack, | |
207 | mw->menu.old_stack_length * sizeof (widget_value*)); | |
208 | } | |
209 | } | |
210 | ||
211 | \f/* Size code */ | |
212 | static Boolean | |
d398028f PR |
213 | all_dashes_p (s) |
214 | char *s; | |
07bf635f RS |
215 | { |
216 | char* p; | |
217 | for (p = s; *p == '-'; p++); | |
218 | return !*p; | |
219 | } | |
220 | ||
d398028f PR |
221 | int |
222 | string_width (mw, s) | |
223 | XlwMenuWidget mw; | |
224 | char *s; | |
07bf635f RS |
225 | { |
226 | XCharStruct xcs; | |
227 | int drop; | |
228 | ||
229 | XTextExtents (mw->menu.font, s, strlen (s), &drop, &drop, &drop, &xcs); | |
230 | return xcs.width; | |
231 | } | |
232 | ||
233 | static int | |
d398028f PR |
234 | arrow_width (mw) |
235 | XlwMenuWidget mw; | |
07bf635f RS |
236 | { |
237 | return mw->menu.font->ascent / 2 | 1; | |
238 | } | |
239 | ||
240 | static XtResource | |
241 | nameResource[] = | |
242 | { | |
243 | {"labelString", "LabelString", XtRString, sizeof(String), | |
244 | 0, XtRImmediate, 0}, | |
245 | }; | |
246 | ||
247 | static char* | |
d398028f PR |
248 | resource_widget_value (mw, val) |
249 | XlwMenuWidget mw; | |
250 | widget_value *val; | |
07bf635f RS |
251 | { |
252 | if (!val->toolkit_data) | |
253 | { | |
254 | char* resourced_name = NULL; | |
255 | char* complete_name; | |
256 | XtGetSubresources ((Widget) mw, | |
257 | (XtPointer) &resourced_name, | |
258 | val->name, val->name, | |
259 | nameResource, 1, NULL, 0); | |
260 | if (!resourced_name) | |
261 | resourced_name = val->name; | |
262 | if (!val->value) | |
d97342f3 RS |
263 | { |
264 | complete_name = (char *) XtMalloc (strlen (resourced_name) + 1); | |
265 | strcpy (complete_name, resourced_name); | |
266 | } | |
07bf635f RS |
267 | else |
268 | { | |
269 | int complete_length = | |
270 | strlen (resourced_name) + strlen (val->value) + 2; | |
271 | complete_name = XtMalloc (complete_length); | |
272 | *complete_name = 0; | |
273 | strcat (complete_name, resourced_name); | |
274 | strcat (complete_name, " "); | |
275 | strcat (complete_name, val->value); | |
276 | } | |
277 | ||
278 | val->toolkit_data = complete_name; | |
279 | val->free_toolkit_data = True; | |
280 | } | |
281 | return (char*)val->toolkit_data; | |
282 | } | |
283 | ||
284 | /* Returns the sizes of an item */ | |
285 | static void | |
d398028f PR |
286 | size_menu_item (mw, val, horizontal_p, label_width, rest_width, height) |
287 | XlwMenuWidget mw; | |
288 | widget_value* val; | |
289 | int horizontal_p; | |
290 | int* label_width; | |
291 | int* rest_width; | |
292 | int* height; | |
07bf635f RS |
293 | { |
294 | if (all_dashes_p (val->name)) | |
295 | { | |
296 | *height = 2; | |
297 | *label_width = 1; | |
298 | *rest_width = 0; | |
299 | } | |
300 | else | |
301 | { | |
302 | *height = | |
303 | mw->menu.font->ascent + mw->menu.font->descent | |
304 | + 2 * mw->menu.vertical_spacing + 2 * mw->menu.shadow_thickness; | |
305 | ||
306 | *label_width = | |
307 | string_width (mw, resource_widget_value (mw, val)) | |
308 | + mw->menu.horizontal_spacing + mw->menu.shadow_thickness; | |
309 | ||
310 | *rest_width = mw->menu.horizontal_spacing + mw->menu.shadow_thickness; | |
311 | if (!horizontal_p) | |
312 | { | |
313 | if (val->contents) | |
314 | *rest_width += arrow_width (mw) + mw->menu.arrow_spacing; | |
315 | else if (val->key) | |
316 | *rest_width += | |
317 | string_width (mw, val->key) + mw->menu.arrow_spacing; | |
318 | } | |
319 | } | |
320 | } | |
321 | ||
322 | static void | |
d398028f PR |
323 | size_menu (mw, level) |
324 | XlwMenuWidget mw; | |
325 | int level; | |
07bf635f RS |
326 | { |
327 | int label_width = 0; | |
328 | int rest_width = 0; | |
329 | int max_rest_width = 0; | |
330 | int height = 0; | |
331 | int horizontal_p = mw->menu.horizontal && (level == 0); | |
332 | widget_value* val; | |
333 | window_state* ws; | |
334 | ||
335 | if (level >= mw->menu.old_depth) | |
336 | abort (); | |
337 | ||
338 | ws = &mw->menu.windows [level]; | |
339 | ws->width = 0; | |
340 | ws->height = 0; | |
341 | ws->label_width = 0; | |
342 | ||
343 | for (val = mw->menu.old_stack [level]->contents; val; val = val->next) | |
344 | { | |
345 | size_menu_item (mw, val, horizontal_p, &label_width, &rest_width, | |
346 | &height); | |
347 | if (horizontal_p) | |
348 | { | |
349 | ws->width += label_width + rest_width; | |
350 | if (height > ws->height) | |
351 | ws->height = height; | |
352 | } | |
353 | else | |
354 | { | |
355 | if (label_width > ws->label_width) | |
356 | ws->label_width = label_width; | |
357 | if (rest_width > max_rest_width) | |
358 | max_rest_width = rest_width; | |
359 | ws->height += height; | |
360 | } | |
361 | } | |
362 | ||
363 | if (horizontal_p) | |
364 | ws->label_width = 0; | |
365 | else | |
366 | ws->width = ws->label_width + max_rest_width; | |
367 | ||
368 | ws->width += 2 * mw->menu.shadow_thickness; | |
369 | ws->height += 2 * mw->menu.shadow_thickness; | |
370 | } | |
371 | ||
372 | ||
373 | \f/* Display code */ | |
374 | static void | |
d398028f PR |
375 | draw_arrow (mw, window, gc, x, y, width) |
376 | XlwMenuWidget mw; | |
377 | Window window; | |
378 | GC gc; | |
379 | int x; | |
380 | int y; | |
381 | int width; | |
07bf635f RS |
382 | { |
383 | XPoint points [3]; | |
384 | points [0].x = x; | |
385 | points [0].y = y + mw->menu.font->ascent; | |
386 | points [1].x = x; | |
387 | points [1].y = y; | |
388 | points [2].x = x + width; | |
389 | points [2].y = y + mw->menu.font->ascent / 2; | |
390 | ||
391 | XFillPolygon (XtDisplay (mw), window, gc, points, 3, Convex, | |
392 | CoordModeOrigin); | |
393 | } | |
394 | ||
395 | static void | |
d398028f PR |
396 | draw_shadow_rectangle (mw, window, x, y, width, height, erase_p) |
397 | XlwMenuWidget mw; | |
398 | Window window; | |
399 | int x; | |
400 | int y; | |
401 | int width; | |
402 | int height; | |
403 | int erase_p; | |
07bf635f RS |
404 | { |
405 | Display *dpy = XtDisplay (mw); | |
406 | GC top_gc = !erase_p ? mw->menu.shadow_top_gc : mw->menu.background_gc; | |
407 | GC bottom_gc = !erase_p ? mw->menu.shadow_bottom_gc : mw->menu.background_gc; | |
408 | int thickness = mw->menu.shadow_thickness; | |
409 | XPoint points [4]; | |
410 | points [0].x = x; | |
411 | points [0].y = y; | |
412 | points [1].x = x + width; | |
413 | points [1].y = y; | |
414 | points [2].x = x + width - thickness; | |
415 | points [2].y = y + thickness; | |
416 | points [3].x = x; | |
417 | points [3].y = y + thickness; | |
418 | XFillPolygon (dpy, window, top_gc, points, 4, Convex, CoordModeOrigin); | |
419 | points [0].x = x; | |
420 | points [0].y = y + thickness; | |
421 | points [1].x = x; | |
422 | points [1].y = y + height; | |
423 | points [2].x = x + thickness; | |
424 | points [2].y = y + height - thickness; | |
425 | points [3].x = x + thickness; | |
426 | points [3].y = y + thickness; | |
427 | XFillPolygon (dpy, window, top_gc, points, 4, Convex, CoordModeOrigin); | |
428 | points [0].x = x + width; | |
429 | points [0].y = y; | |
430 | points [1].x = x + width - thickness; | |
431 | points [1].y = y + thickness; | |
432 | points [2].x = x + width - thickness; | |
433 | points [2].y = y + height - thickness; | |
434 | points [3].x = x + width; | |
435 | points [3].y = y + height - thickness; | |
436 | XFillPolygon (dpy, window, bottom_gc, points, 4, Convex, CoordModeOrigin); | |
437 | points [0].x = x; | |
438 | points [0].y = y + height; | |
439 | points [1].x = x + width; | |
440 | points [1].y = y + height; | |
441 | points [2].x = x + width; | |
442 | points [2].y = y + height - thickness; | |
443 | points [3].x = x + thickness; | |
444 | points [3].y = y + height - thickness; | |
445 | XFillPolygon (dpy, window, bottom_gc, points, 4, Convex, CoordModeOrigin); | |
446 | } | |
447 | ||
448 | ||
449 | /* Display the menu item and increment where.x and where.y to show how large | |
450 | ** the menu item was. | |
451 | */ | |
452 | static void | |
d398028f PR |
453 | display_menu_item (mw, val, ws, where, highlighted_p, horizontal_p, just_compute_p) |
454 | XlwMenuWidget mw; | |
455 | widget_value* val; | |
456 | window_state* ws; | |
457 | XPoint* where; | |
458 | Boolean highlighted_p; | |
459 | Boolean horizontal_p; | |
460 | Boolean just_compute_p; | |
07bf635f RS |
461 | { |
462 | GC deco_gc; | |
463 | GC text_gc; | |
464 | int font_ascent = mw->menu.font->ascent; | |
465 | int font_descent = mw->menu.font->descent; | |
466 | int shadow = mw->menu.shadow_thickness; | |
467 | int separator_p = all_dashes_p (val->name); | |
468 | int h_spacing = mw->menu.horizontal_spacing; | |
469 | int v_spacing = mw->menu.vertical_spacing; | |
470 | int label_width; | |
471 | int rest_width; | |
472 | int height; | |
473 | int width; | |
474 | int button_p; | |
475 | ||
476 | /* compute the sizes of the item */ | |
477 | size_menu_item (mw, val, horizontal_p, &label_width, &rest_width, &height); | |
478 | ||
479 | if (horizontal_p) | |
480 | width = label_width + rest_width; | |
481 | else | |
482 | { | |
483 | label_width = ws->label_width; | |
484 | width = ws->width - 2 * shadow; | |
485 | } | |
486 | ||
487 | /* see if it should be a button in the menubar */ | |
488 | button_p = horizontal_p && val->call_data; | |
489 | ||
490 | /* Only highlight an enabled item that has a callback. */ | |
491 | if (highlighted_p) | |
492 | if (!val->enabled || !(val->call_data || val->contents)) | |
493 | highlighted_p = 0; | |
494 | ||
495 | /* do the drawing. */ | |
496 | if (!just_compute_p) | |
497 | { | |
498 | /* Add the shadow border of the containing menu */ | |
499 | int x = where->x + shadow; | |
500 | int y = where->y + shadow; | |
501 | ||
502 | /* pick the foreground and background GC. */ | |
503 | if (val->enabled) | |
504 | text_gc = button_p ? mw->menu.button_gc : mw->menu.foreground_gc; | |
505 | else | |
506 | text_gc = | |
507 | button_p ? mw->menu.inactive_button_gc : mw->menu.inactive_gc; | |
508 | deco_gc = mw->menu.foreground_gc; | |
509 | ||
510 | if (separator_p) | |
511 | { | |
512 | XDrawLine (XtDisplay (mw), ws->window, mw->menu.shadow_bottom_gc, | |
513 | x, y, x + width, y); | |
514 | XDrawLine (XtDisplay (mw), ws->window, mw->menu.shadow_top_gc, | |
515 | x, y + 1, x + width, y + 1); | |
516 | } | |
517 | else | |
518 | { | |
84593cae | 519 | int x_offset = x + h_spacing + shadow; |
07bf635f RS |
520 | char* display_string = resource_widget_value (mw, val); |
521 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, True); | |
84593cae PR |
522 | |
523 | /* Deal with centering a menu title. */ | |
524 | if (!horizontal_p && !val->contents && !val->call_data) | |
525 | { | |
526 | int l = string_width (mw, display_string); | |
527 | ||
528 | if (width > l) | |
529 | x_offset = (width - l) >> 1; | |
530 | } | |
531 | XDrawString (XtDisplay (mw), ws->window, text_gc, x_offset, | |
07bf635f RS |
532 | y + v_spacing + shadow + font_ascent, |
533 | display_string, strlen (display_string)); | |
534 | ||
535 | if (!horizontal_p) | |
536 | { | |
537 | if (val->contents) | |
538 | { | |
539 | int a_w = arrow_width (mw); | |
540 | draw_arrow (mw, ws->window, deco_gc, | |
d398028f PR |
541 | x + width - arrow_width (mw) |
542 | - mw->menu.horizontal_spacing | |
543 | - mw->menu.shadow_thickness, | |
07bf635f RS |
544 | y + v_spacing + shadow, a_w); |
545 | } | |
546 | else if (val->key) | |
547 | { | |
548 | XDrawString (XtDisplay (mw), ws->window, text_gc, | |
549 | x + label_width + mw->menu.arrow_spacing, | |
550 | y + v_spacing + shadow + font_ascent, | |
551 | val->key, strlen (val->key)); | |
552 | } | |
553 | } | |
554 | ||
555 | else if (button_p) | |
556 | { | |
557 | #if 1 | |
558 | XDrawRectangle (XtDisplay (mw), ws->window, deco_gc, | |
559 | x + shadow, y + shadow, | |
560 | label_width + h_spacing - 1, | |
561 | font_ascent + font_descent + 2 * v_spacing - 1); | |
d398028f PR |
562 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, |
563 | False); | |
07bf635f RS |
564 | #else |
565 | highlighted_p = True; | |
566 | #endif | |
567 | } | |
d398028f PR |
568 | else |
569 | { | |
570 | XDrawRectangle (XtDisplay (mw), ws->window, | |
571 | mw->menu.background_gc, | |
572 | x + shadow, y + shadow, | |
573 | label_width + h_spacing - 1, | |
574 | font_ascent + font_descent + 2 * v_spacing - 1); | |
575 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, | |
576 | True); | |
577 | } | |
07bf635f RS |
578 | |
579 | if (highlighted_p) | |
580 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, False); | |
581 | } | |
582 | } | |
583 | ||
584 | where->x += width; | |
585 | where->y += height; | |
586 | } | |
587 | ||
588 | static void | |
d398028f PR |
589 | display_menu (mw, level, just_compute_p, highlighted_pos, hit, hit_return, |
590 | this, that) | |
591 | XlwMenuWidget mw; | |
592 | int level; | |
593 | Boolean just_compute_p; | |
594 | XPoint* highlighted_pos; | |
595 | XPoint* hit; | |
596 | widget_value** hit_return; | |
597 | widget_value* this; | |
598 | widget_value* that; | |
07bf635f RS |
599 | { |
600 | widget_value* val; | |
601 | widget_value* following_item; | |
602 | window_state* ws; | |
603 | XPoint where; | |
604 | int horizontal_p = mw->menu.horizontal && (level == 0); | |
605 | int highlighted_p; | |
606 | int just_compute_this_one_p; | |
607 | ||
608 | if (level >= mw->menu.old_depth) | |
609 | abort (); | |
610 | ||
611 | if (level < mw->menu.old_depth - 1) | |
612 | following_item = mw->menu.old_stack [level + 1]; | |
613 | else | |
614 | following_item = NULL; | |
615 | ||
616 | if (hit) | |
617 | *hit_return = NULL; | |
618 | ||
619 | where.x = 0; | |
620 | where.y = 0; | |
621 | ||
622 | ws = &mw->menu.windows [level]; | |
623 | for (val = mw->menu.old_stack [level]->contents; val; val = val->next) | |
624 | { | |
625 | highlighted_p = val == following_item; | |
626 | if (highlighted_p && highlighted_pos) | |
627 | { | |
628 | if (horizontal_p) | |
629 | highlighted_pos->x = where.x; | |
630 | else | |
631 | highlighted_pos->y = where.y; | |
632 | } | |
633 | ||
634 | just_compute_this_one_p = | |
635 | just_compute_p || ((this || that) && val != this && val != that); | |
636 | ||
637 | display_menu_item (mw, val, ws, &where, highlighted_p, horizontal_p, | |
638 | just_compute_this_one_p); | |
639 | ||
640 | if (highlighted_p && highlighted_pos) | |
641 | { | |
642 | if (horizontal_p) | |
643 | highlighted_pos->y = where.y; | |
644 | else | |
645 | highlighted_pos->x = where.x; | |
646 | } | |
647 | ||
648 | if (hit | |
649 | && !*hit_return | |
650 | && (horizontal_p ? hit->x < where.x : hit->y < where.y) | |
651 | && !all_dashes_p (val->name)) | |
652 | *hit_return = val; | |
653 | ||
654 | if (horizontal_p) | |
655 | where.y = 0; | |
656 | else | |
657 | where.x = 0; | |
658 | } | |
659 | ||
660 | if (!just_compute_p) | |
661 | draw_shadow_rectangle (mw, ws->window, 0, 0, ws->width, ws->height, False); | |
662 | } | |
663 | ||
664 | \f/* Motion code */ | |
665 | static void | |
d398028f PR |
666 | set_new_state (mw, val, level) |
667 | XlwMenuWidget mw; | |
668 | widget_value* val; | |
669 | int level; | |
07bf635f RS |
670 | { |
671 | int i; | |
672 | ||
673 | mw->menu.new_depth = 0; | |
674 | for (i = 0; i < level; i++) | |
675 | push_new_stack (mw, mw->menu.old_stack [i]); | |
676 | push_new_stack (mw, val); | |
677 | } | |
678 | ||
679 | static void | |
d398028f PR |
680 | make_windows_if_needed (mw, n) |
681 | XlwMenuWidget mw; | |
682 | int n; | |
07bf635f RS |
683 | { |
684 | int i; | |
685 | int start_at; | |
686 | XSetWindowAttributes xswa; | |
687 | int mask; | |
688 | Window root = RootWindowOfScreen (DefaultScreenOfDisplay (XtDisplay (mw))); | |
689 | window_state* windows; | |
690 | ||
691 | if (mw->menu.windows_length >= n) | |
692 | return; | |
693 | ||
694 | xswa.save_under = True; | |
695 | xswa.override_redirect = True; | |
696 | xswa.background_pixel = mw->core.background_pixel; | |
697 | xswa.border_pixel = mw->core.border_pixel; | |
698 | xswa.event_mask = | |
d398028f | 699 | ExposureMask | PointerMotionMask | PointerMotionHintMask |
07bf635f RS |
700 | | ButtonReleaseMask | ButtonPressMask; |
701 | xswa.cursor = mw->menu.cursor_shape; | |
702 | mask = CWSaveUnder | CWOverrideRedirect | CWBackPixel | CWBorderPixel | |
703 | | CWEventMask | CWCursor; | |
704 | ||
705 | if (!mw->menu.windows) | |
706 | { | |
707 | mw->menu.windows = | |
708 | (window_state*)XtMalloc (n * sizeof (window_state)); | |
709 | start_at = 0; | |
710 | } | |
711 | else | |
712 | { | |
713 | mw->menu.windows = | |
714 | (window_state*)XtRealloc ((char*)mw->menu.windows, | |
715 | n * sizeof (window_state)); | |
716 | start_at = mw->menu.windows_length; | |
717 | } | |
718 | mw->menu.windows_length = n; | |
719 | ||
720 | windows = mw->menu.windows; | |
721 | ||
722 | for (i = start_at; i < n; i++) | |
723 | { | |
724 | windows [i].x = 0; | |
725 | windows [i].y = 0; | |
726 | windows [i].width = 1; | |
727 | windows [i].height = 1; | |
728 | windows [i].window = | |
729 | XCreateWindow (XtDisplay (mw), root, 0, 0, 1, 1, | |
730 | 0, 0, CopyFromParent, CopyFromParent, mask, &xswa); | |
731 | } | |
732 | } | |
733 | ||
734 | /* Make the window fit in the screen */ | |
735 | static void | |
d398028f PR |
736 | fit_to_screen (mw, ws, previous_ws, horizontal_p) |
737 | XlwMenuWidget mw; | |
738 | window_state* ws; | |
739 | window_state* previous_ws; | |
740 | Boolean horizontal_p; | |
07bf635f RS |
741 | { |
742 | int screen_width = WidthOfScreen (XtScreen (mw)); | |
743 | int screen_height = HeightOfScreen (XtScreen (mw)); | |
744 | ||
745 | if (ws->x < 0) | |
746 | ws->x = 0; | |
747 | else if (ws->x + ws->width > screen_width) | |
748 | { | |
749 | if (!horizontal_p) | |
750 | ws->x = previous_ws->x - ws->width; | |
751 | else | |
752 | ws->x = screen_width - ws->width; | |
753 | } | |
754 | if (ws->y < 0) | |
755 | ws->y = 0; | |
756 | else if (ws->y + ws->height > screen_height) | |
757 | { | |
758 | if (horizontal_p) | |
759 | ws->y = previous_ws->y - ws->height; | |
760 | else | |
761 | ws->y = screen_height - ws->height; | |
762 | } | |
763 | } | |
764 | ||
765 | /* Updates old_stack from new_stack and redisplays. */ | |
766 | static void | |
d398028f PR |
767 | remap_menubar (mw) |
768 | XlwMenuWidget mw; | |
07bf635f RS |
769 | { |
770 | int i; | |
771 | int last_same; | |
772 | XPoint selection_position; | |
773 | int old_depth = mw->menu.old_depth; | |
774 | int new_depth = mw->menu.new_depth; | |
775 | widget_value** old_stack; | |
776 | widget_value** new_stack; | |
777 | window_state* windows; | |
778 | widget_value* old_selection; | |
779 | widget_value* new_selection; | |
780 | ||
781 | /* Check that enough windows and old_stack are ready. */ | |
782 | make_windows_if_needed (mw, new_depth); | |
783 | make_old_stack_space (mw, new_depth); | |
784 | windows = mw->menu.windows; | |
785 | old_stack = mw->menu.old_stack; | |
786 | new_stack = mw->menu.new_stack; | |
787 | ||
788 | /* compute the last identical different entry */ | |
789 | for (i = 1; i < old_depth && i < new_depth; i++) | |
790 | if (old_stack [i] != new_stack [i]) | |
791 | break; | |
792 | last_same = i - 1; | |
793 | ||
794 | /* Memorize the previously selected item to be able to refresh it */ | |
795 | old_selection = last_same + 1 < old_depth ? old_stack [last_same + 1] : NULL; | |
796 | if (old_selection && !old_selection->enabled) | |
797 | old_selection = NULL; | |
798 | new_selection = last_same + 1 < new_depth ? new_stack [last_same + 1] : NULL; | |
799 | if (new_selection && !new_selection->enabled) | |
800 | new_selection = NULL; | |
801 | ||
802 | /* updates old_state from new_state. It has to be done now because | |
803 | display_menu (called below) uses the old_stack to know what to display. */ | |
804 | for (i = last_same + 1; i < new_depth; i++) | |
805 | old_stack [i] = new_stack [i]; | |
806 | mw->menu.old_depth = new_depth; | |
807 | ||
808 | /* refresh the last seletion */ | |
809 | selection_position.x = 0; | |
810 | selection_position.y = 0; | |
811 | display_menu (mw, last_same, new_selection == old_selection, | |
812 | &selection_position, NULL, NULL, old_selection, new_selection); | |
813 | ||
814 | /* Now popup the new menus */ | |
815 | for (i = last_same + 1; i < new_depth && new_stack [i]->contents; i++) | |
816 | { | |
817 | window_state* previous_ws = &windows [i - 1]; | |
818 | window_state* ws = &windows [i]; | |
819 | ||
820 | ws->x = | |
821 | previous_ws->x + selection_position.x + mw->menu.shadow_thickness; | |
822 | if (!mw->menu.horizontal || i > 1) | |
823 | ws->x += mw->menu.shadow_thickness; | |
824 | ws->y = | |
825 | previous_ws->y + selection_position.y + mw->menu.shadow_thickness; | |
826 | ||
827 | size_menu (mw, i); | |
828 | ||
829 | fit_to_screen (mw, ws, previous_ws, mw->menu.horizontal && i == 1); | |
830 | ||
831 | XClearWindow (XtDisplay (mw), ws->window); | |
832 | XMoveResizeWindow (XtDisplay (mw), ws->window, ws->x, ws->y, | |
833 | ws->width, ws->height); | |
834 | XMapRaised (XtDisplay (mw), ws->window); | |
835 | display_menu (mw, i, False, &selection_position, NULL, NULL, NULL, NULL); | |
836 | } | |
837 | ||
838 | /* unmap the menus that popped down */ | |
839 | for (i = new_depth - 1; i < old_depth; i++) | |
840 | if (i >= new_depth || !new_stack [i]->contents) | |
841 | XUnmapWindow (XtDisplay (mw), windows [i].window); | |
842 | } | |
843 | ||
844 | static Boolean | |
d398028f PR |
845 | motion_event_is_in_menu (mw, ev, level, relative_pos) |
846 | XlwMenuWidget mw; | |
847 | XMotionEvent* ev; | |
848 | int level; | |
849 | XPoint* relative_pos; | |
07bf635f RS |
850 | { |
851 | window_state* ws = &mw->menu.windows [level]; | |
852 | int x = level == 0 ? ws->x : ws->x + mw->menu.shadow_thickness; | |
853 | int y = level == 0 ? ws->y : ws->y + mw->menu.shadow_thickness; | |
854 | relative_pos->x = ev->x_root - x; | |
855 | relative_pos->y = ev->y_root - y; | |
856 | return (x < ev->x_root && ev->x_root < x + ws->width | |
857 | && y < ev->y_root && ev->y_root < y + ws->height); | |
858 | } | |
859 | ||
860 | static Boolean | |
d398028f PR |
861 | map_event_to_widget_value (mw, ev, val, level) |
862 | XlwMenuWidget mw; | |
863 | XMotionEvent* ev; | |
864 | widget_value** val; | |
865 | int* level; | |
07bf635f RS |
866 | { |
867 | int i; | |
868 | XPoint relative_pos; | |
869 | window_state* ws; | |
870 | ||
871 | *val = NULL; | |
872 | ||
873 | /* Find the window */ | |
874 | for (i = mw->menu.old_depth - 1; i >= 0; i--) | |
875 | { | |
876 | ws = &mw->menu.windows [i]; | |
877 | if (ws && motion_event_is_in_menu (mw, ev, i, &relative_pos)) | |
878 | { | |
879 | display_menu (mw, i, True, NULL, &relative_pos, val, NULL, NULL); | |
880 | ||
881 | if (*val) | |
882 | { | |
883 | *level = i + 1; | |
884 | return True; | |
885 | } | |
886 | } | |
887 | } | |
888 | return False; | |
889 | } | |
890 | ||
891 | \f/* Procedures */ | |
892 | static void | |
d398028f PR |
893 | make_drawing_gcs (mw) |
894 | XlwMenuWidget mw; | |
07bf635f RS |
895 | { |
896 | XGCValues xgcv; | |
897 | ||
898 | xgcv.font = mw->menu.font->fid; | |
899 | xgcv.foreground = mw->menu.foreground; | |
900 | xgcv.background = mw->core.background_pixel; | |
901 | mw->menu.foreground_gc = XtGetGC ((Widget)mw, | |
902 | GCFont | GCForeground | GCBackground, | |
903 | &xgcv); | |
904 | ||
905 | xgcv.font = mw->menu.font->fid; | |
906 | xgcv.foreground = mw->menu.button_foreground; | |
907 | xgcv.background = mw->core.background_pixel; | |
908 | mw->menu.button_gc = XtGetGC ((Widget)mw, | |
909 | GCFont | GCForeground | GCBackground, | |
910 | &xgcv); | |
911 | ||
912 | xgcv.font = mw->menu.font->fid; | |
913 | xgcv.foreground = mw->menu.foreground; | |
914 | xgcv.background = mw->core.background_pixel; | |
915 | xgcv.fill_style = FillStippled; | |
916 | xgcv.stipple = mw->menu.gray_pixmap; | |
917 | mw->menu.inactive_gc = XtGetGC ((Widget)mw, | |
918 | (GCFont | GCForeground | GCBackground | |
919 | | GCFillStyle | GCStipple), &xgcv); | |
920 | ||
921 | xgcv.font = mw->menu.font->fid; | |
922 | xgcv.foreground = mw->menu.button_foreground; | |
923 | xgcv.background = mw->core.background_pixel; | |
924 | xgcv.fill_style = FillStippled; | |
925 | xgcv.stipple = mw->menu.gray_pixmap; | |
926 | mw->menu.inactive_button_gc = XtGetGC ((Widget)mw, | |
927 | (GCFont | GCForeground | GCBackground | |
928 | | GCFillStyle | GCStipple), &xgcv); | |
929 | ||
930 | xgcv.font = mw->menu.font->fid; | |
931 | xgcv.foreground = mw->core.background_pixel; | |
932 | xgcv.background = mw->menu.foreground; | |
933 | mw->menu.background_gc = XtGetGC ((Widget)mw, | |
934 | GCFont | GCForeground | GCBackground, | |
935 | &xgcv); | |
936 | } | |
937 | ||
938 | static void | |
d398028f PR |
939 | release_drawing_gcs (mw) |
940 | XlwMenuWidget mw; | |
07bf635f RS |
941 | { |
942 | XtReleaseGC ((Widget) mw, mw->menu.foreground_gc); | |
943 | XtReleaseGC ((Widget) mw, mw->menu.button_gc); | |
944 | XtReleaseGC ((Widget) mw, mw->menu.inactive_gc); | |
945 | XtReleaseGC ((Widget) mw, mw->menu.inactive_button_gc); | |
946 | XtReleaseGC ((Widget) mw, mw->menu.background_gc); | |
947 | /* let's get some segvs if we try to use these... */ | |
948 | mw->menu.foreground_gc = (GC) -1; | |
949 | mw->menu.button_gc = (GC) -1; | |
950 | mw->menu.inactive_gc = (GC) -1; | |
951 | mw->menu.inactive_button_gc = (GC) -1; | |
952 | mw->menu.background_gc = (GC) -1; | |
953 | } | |
954 | ||
955 | #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \ | |
956 | ? ((unsigned long) (x)) : ((unsigned long) (y))) | |
957 | ||
958 | static void | |
d398028f PR |
959 | make_shadow_gcs (mw) |
960 | XlwMenuWidget mw; | |
07bf635f RS |
961 | { |
962 | XGCValues xgcv; | |
963 | unsigned long pm = 0; | |
964 | Display *dpy = XtDisplay ((Widget) mw); | |
965 | Colormap cmap = DefaultColormapOfScreen (XtScreen ((Widget) mw)); | |
966 | XColor topc, botc; | |
967 | int top_frobbed = 0, bottom_frobbed = 0; | |
968 | ||
969 | if (mw->menu.top_shadow_color == -1) | |
970 | mw->menu.top_shadow_color = mw->core.background_pixel; | |
971 | if (mw->menu.bottom_shadow_color == -1) | |
972 | mw->menu.bottom_shadow_color = mw->menu.foreground; | |
973 | ||
974 | if (mw->menu.top_shadow_color == mw->core.background_pixel || | |
975 | mw->menu.top_shadow_color == mw->menu.foreground) | |
976 | { | |
977 | topc.pixel = mw->core.background_pixel; | |
978 | XQueryColor (dpy, cmap, &topc); | |
979 | /* don't overflow/wrap! */ | |
980 | topc.red = MINL (65535, topc.red * 1.2); | |
981 | topc.green = MINL (65535, topc.green * 1.2); | |
982 | topc.blue = MINL (65535, topc.blue * 1.2); | |
983 | if (XAllocColor (dpy, cmap, &topc)) | |
984 | { | |
985 | mw->menu.top_shadow_color = topc.pixel; | |
986 | top_frobbed = 1; | |
987 | } | |
988 | } | |
989 | if (mw->menu.bottom_shadow_color == mw->menu.foreground || | |
990 | mw->menu.bottom_shadow_color == mw->core.background_pixel) | |
991 | { | |
992 | botc.pixel = mw->core.background_pixel; | |
993 | XQueryColor (dpy, cmap, &botc); | |
994 | botc.red *= 0.6; | |
995 | botc.green *= 0.6; | |
996 | botc.blue *= 0.6; | |
997 | if (XAllocColor (dpy, cmap, &botc)) | |
998 | { | |
999 | mw->menu.bottom_shadow_color = botc.pixel; | |
1000 | bottom_frobbed = 1; | |
1001 | } | |
1002 | } | |
1003 | ||
1004 | if (top_frobbed && bottom_frobbed) | |
1005 | { | |
1006 | int top_avg = ((topc.red / 3) + (topc.green / 3) + (topc.blue / 3)); | |
1007 | int bot_avg = ((botc.red / 3) + (botc.green / 3) + (botc.blue / 3)); | |
1008 | if (bot_avg > top_avg) | |
1009 | { | |
1010 | Pixel tmp = mw->menu.top_shadow_color; | |
1011 | mw->menu.top_shadow_color = mw->menu.bottom_shadow_color; | |
1012 | mw->menu.bottom_shadow_color = tmp; | |
1013 | } | |
1014 | else if (topc.pixel == botc.pixel) | |
1015 | { | |
1016 | if (botc.pixel == mw->menu.foreground) | |
1017 | mw->menu.top_shadow_color = mw->core.background_pixel; | |
1018 | else | |
1019 | mw->menu.bottom_shadow_color = mw->menu.foreground; | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | if (!mw->menu.top_shadow_pixmap && | |
1024 | mw->menu.top_shadow_color == mw->core.background_pixel) | |
1025 | { | |
1026 | mw->menu.top_shadow_pixmap = mw->menu.gray_pixmap; | |
1027 | mw->menu.top_shadow_color = mw->menu.foreground; | |
1028 | } | |
1029 | if (!mw->menu.bottom_shadow_pixmap && | |
1030 | mw->menu.bottom_shadow_color == mw->core.background_pixel) | |
1031 | { | |
1032 | mw->menu.bottom_shadow_pixmap = mw->menu.gray_pixmap; | |
1033 | mw->menu.bottom_shadow_color = mw->menu.foreground; | |
1034 | } | |
1035 | ||
1036 | xgcv.fill_style = FillStippled; | |
1037 | xgcv.foreground = mw->menu.top_shadow_color; | |
1038 | xgcv.stipple = mw->menu.top_shadow_pixmap; | |
1039 | pm = (xgcv.stipple ? GCStipple|GCFillStyle : 0); | |
1040 | mw->menu.shadow_top_gc = XtGetGC ((Widget)mw, GCForeground | pm, &xgcv); | |
1041 | ||
1042 | xgcv.foreground = mw->menu.bottom_shadow_color; | |
1043 | xgcv.stipple = mw->menu.bottom_shadow_pixmap; | |
1044 | pm = (xgcv.stipple ? GCStipple|GCFillStyle : 0); | |
1045 | mw->menu.shadow_bottom_gc = XtGetGC ((Widget)mw, GCForeground | pm, &xgcv); | |
1046 | } | |
1047 | ||
1048 | ||
1049 | static void | |
d398028f PR |
1050 | release_shadow_gcs (mw) |
1051 | XlwMenuWidget mw; | |
07bf635f RS |
1052 | { |
1053 | XtReleaseGC ((Widget) mw, mw->menu.shadow_top_gc); | |
1054 | XtReleaseGC ((Widget) mw, mw->menu.shadow_bottom_gc); | |
1055 | } | |
1056 | ||
1057 | static void | |
d398028f PR |
1058 | XlwMenuInitialize (request, new, args, num_args) |
1059 | Widget request; | |
1060 | Widget new; | |
1061 | ArgList args; | |
1062 | Cardinal *num_args; | |
07bf635f RS |
1063 | { |
1064 | /* Get the GCs and the widget size */ | |
1065 | XlwMenuWidget mw = (XlwMenuWidget)new; | |
1066 | ||
1067 | XSetWindowAttributes xswa; | |
1068 | int mask; | |
1069 | ||
1070 | Window window = RootWindowOfScreen (DefaultScreenOfDisplay (XtDisplay (mw))); | |
1071 | Display* display = XtDisplay (mw); | |
1072 | ||
d398028f PR |
1073 | #if 0 |
1074 | widget_value *tem = (widget_value *) XtMalloc (sizeof (widget_value)); | |
1075 | ||
1076 | /* _XtCreate is freeing the object that was passed to us, | |
1077 | so make a copy that we will actually keep. */ | |
1078 | lwlib_bcopy (mw->menu.contents, tem, sizeof (widget_value)); | |
1079 | mw->menu.contents = tem; | |
1080 | #endif | |
1081 | ||
07bf635f RS |
1082 | /* mw->menu.cursor = XCreateFontCursor (display, mw->menu.cursor_shape); */ |
1083 | mw->menu.cursor = mw->menu.cursor_shape; | |
1084 | ||
1085 | mw->menu.gray_pixmap = XCreatePixmapFromBitmapData (display, window, | |
1086 | gray_bits, gray_width, | |
1087 | gray_height, 1, 0, 1); | |
1088 | ||
1089 | make_drawing_gcs (mw); | |
1090 | make_shadow_gcs (mw); | |
1091 | ||
1092 | xswa.background_pixel = mw->core.background_pixel; | |
1093 | xswa.border_pixel = mw->core.border_pixel; | |
1094 | mask = CWBackPixel | CWBorderPixel; | |
1095 | ||
1096 | mw->menu.popped_up = False; | |
1097 | ||
1098 | mw->menu.old_depth = 1; | |
1099 | mw->menu.old_stack = (widget_value**)XtMalloc (sizeof (widget_value*)); | |
1100 | mw->menu.old_stack_length = 1; | |
1101 | mw->menu.old_stack [0] = mw->menu.contents; | |
1102 | ||
1103 | mw->menu.new_depth = 0; | |
1104 | mw->menu.new_stack = 0; | |
1105 | mw->menu.new_stack_length = 0; | |
1106 | push_new_stack (mw, mw->menu.contents); | |
1107 | ||
1108 | mw->menu.windows = (window_state*)XtMalloc (sizeof (window_state)); | |
1109 | mw->menu.windows_length = 1; | |
1110 | mw->menu.windows [0].x = 0; | |
1111 | mw->menu.windows [0].y = 0; | |
1112 | mw->menu.windows [0].width = 0; | |
1113 | mw->menu.windows [0].height = 0; | |
1114 | size_menu (mw, 0); | |
1115 | ||
1116 | mw->core.width = mw->menu.windows [0].width; | |
1117 | mw->core.height = mw->menu.windows [0].height; | |
1118 | } | |
1119 | ||
1120 | static void | |
1121 | XlwMenuClassInitialize () | |
1122 | { | |
1123 | } | |
1124 | ||
1125 | static void | |
d398028f PR |
1126 | XlwMenuRealize (w, valueMask, attributes) |
1127 | Widget w; | |
1128 | Mask *valueMask; | |
1129 | XSetWindowAttributes *attributes; | |
07bf635f RS |
1130 | { |
1131 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1132 | XSetWindowAttributes xswa; | |
1133 | int mask; | |
1134 | ||
1135 | (*xlwMenuWidgetClass->core_class.superclass->core_class.realize) | |
1136 | (w, valueMask, attributes); | |
1137 | ||
1138 | xswa.save_under = True; | |
1139 | xswa.cursor = mw->menu.cursor_shape; | |
1140 | mask = CWSaveUnder | CWCursor; | |
1141 | XChangeWindowAttributes (XtDisplay (w), XtWindow (w), mask, &xswa); | |
1142 | ||
1143 | mw->menu.windows [0].window = XtWindow (w); | |
1144 | mw->menu.windows [0].x = w->core.x; | |
1145 | mw->menu.windows [0].y = w->core.y; | |
1146 | mw->menu.windows [0].width = w->core.width; | |
1147 | mw->menu.windows [0].height = w->core.height; | |
1148 | } | |
1149 | ||
1150 | /* Only the toplevel menubar/popup is a widget so it's the only one that | |
1151 | receives expose events through Xt. So we repaint all the other panes | |
1152 | when receiving an Expose event. */ | |
1153 | static void | |
d398028f PR |
1154 | XlwMenuRedisplay (w, ev, region) |
1155 | Widget w; | |
1156 | XEvent* ev; | |
1157 | Region region; | |
07bf635f RS |
1158 | { |
1159 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1160 | int i; | |
1161 | ||
d398028f PR |
1162 | /* If we have a depth beyond 1, it's because a submenu was displayed. |
1163 | If the submenu has been destroyed, set the depth back to 1. */ | |
1164 | if (submenu_destroyed) | |
1165 | { | |
1166 | mw->menu.old_depth = 1; | |
1167 | submenu_destroyed = 0; | |
1168 | } | |
1169 | ||
07bf635f RS |
1170 | for (i = 0; i < mw->menu.old_depth; i++) |
1171 | display_menu (mw, i, False, NULL, NULL, NULL, NULL, NULL); | |
1172 | } | |
1173 | ||
1174 | static void | |
d398028f PR |
1175 | XlwMenuDestroy (w) |
1176 | Widget w; | |
07bf635f RS |
1177 | { |
1178 | int i; | |
1179 | XlwMenuWidget mw = (XlwMenuWidget) w; | |
1180 | ||
d398028f PR |
1181 | if (pointer_grabbed) |
1182 | XtUngrabPointer ((Widget)w, CurrentTime); | |
1183 | pointer_grabbed = 0; | |
1184 | ||
1185 | submenu_destroyed = 1; | |
1186 | ||
07bf635f RS |
1187 | release_drawing_gcs (mw); |
1188 | release_shadow_gcs (mw); | |
1189 | ||
1190 | /* this doesn't come from the resource db but is created explicitly | |
1191 | so we must free it ourselves. */ | |
1192 | XFreePixmap (XtDisplay (mw), mw->menu.gray_pixmap); | |
1193 | mw->menu.gray_pixmap = (Pixmap) -1; | |
1194 | ||
d398028f PR |
1195 | #if 0 |
1196 | /* Do free mw->menu.contents because nowadays we copy it | |
1197 | during initialization. */ | |
1198 | XtFree (mw->menu.contents); | |
1199 | #endif | |
1200 | ||
07bf635f RS |
1201 | /* Don't free mw->menu.contents because that comes from our creator. |
1202 | The `*_stack' elements are just pointers into `contents' so leave | |
1203 | that alone too. But free the stacks themselves. */ | |
1204 | if (mw->menu.old_stack) XtFree ((char *) mw->menu.old_stack); | |
1205 | if (mw->menu.new_stack) XtFree ((char *) mw->menu.new_stack); | |
1206 | ||
1207 | /* Remember, you can't free anything that came from the resource | |
1208 | database. This includes: | |
1209 | mw->menu.cursor | |
1210 | mw->menu.top_shadow_pixmap | |
1211 | mw->menu.bottom_shadow_pixmap | |
1212 | mw->menu.font | |
1213 | Also the color cells of top_shadow_color, bottom_shadow_color, | |
1214 | foreground, and button_foreground will never be freed until this | |
1215 | client exits. Nice, eh? | |
1216 | */ | |
1217 | ||
1218 | /* start from 1 because the one in slot 0 is w->core.window */ | |
1219 | for (i = 1; i < mw->menu.windows_length; i++) | |
1220 | XDestroyWindow (XtDisplay (mw), mw->menu.windows [i].window); | |
1221 | if (mw->menu.windows) | |
1222 | XtFree ((char *) mw->menu.windows); | |
1223 | } | |
1224 | ||
1225 | static Boolean | |
d398028f PR |
1226 | XlwMenuSetValues (current, request, new) |
1227 | Widget current; | |
1228 | Widget request; | |
1229 | Widget new; | |
07bf635f RS |
1230 | { |
1231 | XlwMenuWidget oldmw = (XlwMenuWidget)current; | |
1232 | XlwMenuWidget newmw = (XlwMenuWidget)new; | |
1233 | Boolean redisplay = False; | |
1234 | int i; | |
1235 | ||
1236 | if (newmw->menu.contents | |
1237 | && newmw->menu.contents->contents | |
1238 | && newmw->menu.contents->contents->change >= VISIBLE_CHANGE) | |
1239 | redisplay = True; | |
1240 | ||
1241 | if (newmw->core.background_pixel != oldmw->core.background_pixel | |
d398028f PR |
1242 | || newmw->menu.foreground != oldmw->menu.foreground |
1243 | || newmw->menu.font != oldmw->menu.font) | |
07bf635f RS |
1244 | { |
1245 | release_drawing_gcs (newmw); | |
1246 | make_drawing_gcs (newmw); | |
1247 | redisplay = True; | |
1248 | ||
1249 | for (i = 0; i < oldmw->menu.windows_length; i++) | |
1250 | { | |
1251 | XSetWindowBackground (XtDisplay (oldmw), | |
1252 | oldmw->menu.windows [i].window, | |
1253 | newmw->core.background_pixel); | |
1254 | /* clear windows and generate expose events */ | |
1255 | XClearArea (XtDisplay (oldmw), oldmw->menu.windows[i].window, | |
1256 | 0, 0, 0, 0, True); | |
1257 | } | |
1258 | } | |
1259 | ||
1260 | return redisplay; | |
1261 | } | |
1262 | ||
1263 | static void | |
d398028f PR |
1264 | XlwMenuResize (w) |
1265 | Widget w; | |
07bf635f RS |
1266 | { |
1267 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1268 | ||
d398028f PR |
1269 | if (mw->menu.popped_up) |
1270 | { | |
1271 | /* Don't allow the popup menu to resize itself. */ | |
1272 | mw->core.width = mw->menu.windows [0].width; | |
1273 | mw->core.height = mw->menu.windows [0].height; | |
1274 | mw->core.parent->core.width = mw->core.width ; | |
1275 | mw->core.parent->core.height = mw->core.height ; | |
1276 | } | |
1277 | else | |
1278 | { | |
1279 | mw->menu.windows [0].width = mw->core.width; | |
1280 | mw->menu.windows [0].height = mw->core.height; | |
1281 | } | |
07bf635f RS |
1282 | } |
1283 | ||
1284 | \f/* Action procedures */ | |
1285 | static void | |
d398028f PR |
1286 | handle_single_motion_event (mw, ev) |
1287 | XlwMenuWidget mw; | |
1288 | XMotionEvent* ev; | |
07bf635f RS |
1289 | { |
1290 | widget_value* val; | |
1291 | int level; | |
1292 | ||
1293 | if (!map_event_to_widget_value (mw, ev, &val, &level)) | |
1294 | pop_new_stack_if_no_contents (mw); | |
1295 | else | |
1296 | set_new_state (mw, val, level); | |
1297 | remap_menubar (mw); | |
1298 | ||
1299 | /* Sync with the display. Makes it feel better on X terms. */ | |
1300 | XSync (XtDisplay (mw), False); | |
1301 | } | |
1302 | ||
1303 | static void | |
d398028f PR |
1304 | handle_motion_event (mw, ev) |
1305 | XlwMenuWidget mw; | |
1306 | XMotionEvent* ev; | |
07bf635f RS |
1307 | { |
1308 | int x = ev->x_root; | |
1309 | int y = ev->y_root; | |
1310 | int state = ev->state; | |
1311 | ||
1312 | handle_single_motion_event (mw, ev); | |
1313 | ||
1314 | /* allow motion events to be generated again */ | |
1315 | if (ev->is_hint | |
1316 | && XQueryPointer (XtDisplay (mw), ev->window, | |
1317 | &ev->root, &ev->subwindow, | |
1318 | &ev->x_root, &ev->y_root, | |
1319 | &ev->x, &ev->y, | |
1320 | &ev->state) | |
1321 | && ev->state == state | |
1322 | && (ev->x_root != x || ev->y_root != y)) | |
1323 | handle_single_motion_event (mw, ev); | |
1324 | } | |
1325 | ||
1326 | static void | |
d398028f PR |
1327 | Start (w, ev, params, num_params) |
1328 | Widget w; | |
1329 | XEvent *ev; | |
1330 | String *params; | |
1331 | Cardinal *num_params; | |
07bf635f RS |
1332 | { |
1333 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1334 | ||
d398028f PR |
1335 | if (!mw->menu.popped_up) |
1336 | { | |
1337 | menu_post_event = *ev; | |
4cc76151 | 1338 | pop_up_menu (mw, ev); |
d398028f PR |
1339 | } |
1340 | else | |
4cc76151 PR |
1341 | { |
1342 | /* If we push a button while the menu is posted semipermanently, | |
1343 | releasing the button should always pop the menu down. */ | |
1344 | next_release_must_exit = 1; | |
d398028f | 1345 | |
4cc76151 PR |
1346 | /* notes the absolute position of the menubar window */ |
1347 | mw->menu.windows [0].x = ev->xmotion.x_root - ev->xmotion.x; | |
1348 | mw->menu.windows [0].y = ev->xmotion.y_root - ev->xmotion.y; | |
07bf635f | 1349 | |
4cc76151 PR |
1350 | /* handles the down like a move, slots are compatible */ |
1351 | handle_motion_event (mw, &ev->xmotion); | |
1352 | } | |
07bf635f RS |
1353 | } |
1354 | ||
1355 | static void | |
d398028f PR |
1356 | Drag (w, ev, params, num_params) |
1357 | Widget w; | |
1358 | XEvent *ev; | |
1359 | String *params; | |
1360 | Cardinal *num_params; | |
07bf635f RS |
1361 | { |
1362 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1363 | handle_motion_event (mw, &ev->xmotion); | |
1364 | } | |
1365 | ||
1366 | static void | |
d398028f PR |
1367 | Select (w, ev, params, num_params) |
1368 | Widget w; | |
1369 | XEvent *ev; | |
1370 | String *params; | |
1371 | Cardinal *num_params; | |
07bf635f RS |
1372 | { |
1373 | XlwMenuWidget mw = (XlwMenuWidget)w; | |
1374 | widget_value* selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; | |
1375 | ||
d398028f PR |
1376 | /* If user releases the button quickly, without selecting anything, |
1377 | after the initial down-click that brought the menu up, | |
1378 | do nothing. */ | |
1379 | if ((selected_item == 0 | |
1380 | || ((widget_value *) selected_item)->call_data == 0) | |
1381 | && !next_release_must_exit | |
1382 | && (ev->xbutton.time - menu_post_event.xbutton.time | |
1383 | < XtGetMultiClickTime (XtDisplay (w)))) | |
1384 | return; | |
1385 | ||
1386 | /* pop down everything. */ | |
07bf635f RS |
1387 | mw->menu.new_depth = 1; |
1388 | remap_menubar (mw); | |
1389 | ||
1390 | if (mw->menu.popped_up) | |
1391 | { | |
1392 | mw->menu.popped_up = False; | |
1393 | XtUngrabPointer ((Widget)mw, ev->xmotion.time); | |
2289f3f4 PR |
1394 | if (XtIsShell (XtParent ((Widget) mw))) |
1395 | XtPopdown (XtParent ((Widget) mw)); | |
4cc76151 PR |
1396 | else |
1397 | { | |
1398 | XtRemoveGrab ((Widget) mw); | |
1399 | display_menu (mw, 0, False, NULL, NULL, NULL, NULL, NULL); | |
1400 | } | |
07bf635f RS |
1401 | } |
1402 | ||
1403 | /* callback */ | |
1404 | XtCallCallbackList ((Widget)mw, mw->menu.select, (XtPointer)selected_item); | |
07bf635f RS |
1405 | } |
1406 | ||
1407 | ||
1408 | \f/* Special code to pop-up a menu */ | |
1409 | void | |
d398028f PR |
1410 | pop_up_menu (mw, event) |
1411 | XlwMenuWidget mw; | |
1412 | XButtonPressedEvent* event; | |
07bf635f RS |
1413 | { |
1414 | int x = event->x_root; | |
1415 | int y = event->y_root; | |
1416 | int w; | |
1417 | int h; | |
1418 | int borderwidth = mw->menu.shadow_thickness; | |
1419 | Screen* screen = XtScreen (mw); | |
1420 | ||
d398028f PR |
1421 | next_release_must_exit = 0; |
1422 | ||
07bf635f RS |
1423 | XtCallCallbackList ((Widget)mw, mw->menu.open, NULL); |
1424 | ||
2289f3f4 | 1425 | if (XtIsShell (XtParent ((Widget)mw))) |
4cc76151 | 1426 | size_menu (mw, 0); |
07bf635f RS |
1427 | |
1428 | w = mw->menu.windows [0].width; | |
1429 | h = mw->menu.windows [0].height; | |
1430 | ||
1431 | x -= borderwidth; | |
1432 | y -= borderwidth; | |
1433 | if (x < borderwidth) | |
1434 | x = borderwidth; | |
1435 | if (x + w + 2 * borderwidth > WidthOfScreen (screen)) | |
1436 | x = WidthOfScreen (screen) - w - 2 * borderwidth; | |
1437 | if (y < borderwidth) | |
1438 | y = borderwidth; | |
1439 | if (y + h + 2 * borderwidth> HeightOfScreen (screen)) | |
1440 | y = HeightOfScreen (screen) - h - 2 * borderwidth; | |
1441 | ||
1442 | mw->menu.popped_up = True; | |
2289f3f4 | 1443 | if (XtIsShell (XtParent ((Widget)mw))) |
4cc76151 | 1444 | { |
2289f3f4 PR |
1445 | XtConfigureWidget (XtParent ((Widget)mw), x, y, w, h, |
1446 | XtParent ((Widget)mw)->core.border_width); | |
1447 | XtPopup (XtParent ((Widget)mw), XtGrabExclusive); | |
4cc76151 PR |
1448 | display_menu (mw, 0, False, NULL, NULL, NULL, NULL, NULL); |
1449 | mw->menu.windows [0].x = x + borderwidth; | |
1450 | mw->menu.windows [0].y = y + borderwidth; | |
1451 | } | |
1452 | else | |
1453 | { | |
1454 | XEvent *ev = (XEvent *) event; | |
1455 | ||
87a559bf | 1456 | XtAddGrab ((Widget) mw, True, True); |
4cc76151 PR |
1457 | |
1458 | /* notes the absolute position of the menubar window */ | |
1459 | mw->menu.windows [0].x = ev->xmotion.x_root - ev->xmotion.x; | |
1460 | mw->menu.windows [0].y = ev->xmotion.y_root - ev->xmotion.y; | |
1461 | } | |
1462 | ||
d398028f PR |
1463 | #ifdef emacs |
1464 | x_catch_errors (); | |
1465 | #endif | |
87a559bf PR |
1466 | XtGrabPointer ((Widget)mw, False, |
1467 | (PointerMotionMask | |
1468 | | PointerMotionHintMask | |
1469 | | ButtonReleaseMask | |
1470 | | ButtonPressMask), | |
1471 | GrabModeAsync, GrabModeAsync, None, | |
1472 | mw->menu.cursor_shape, | |
1473 | event->time); | |
1474 | pointer_grabbed = 1; | |
d398028f PR |
1475 | #ifdef emacs |
1476 | if (x_had_errors_p ()) | |
1477 | { | |
1478 | pointer_grabbed = 0; | |
1479 | XtUngrabPointer ((Widget)mw, event->time); | |
1480 | } | |
1481 | x_uncatch_errors (); | |
1482 | #endif | |
07bf635f | 1483 | |
07bf635f RS |
1484 | handle_motion_event (mw, (XMotionEvent*)event); |
1485 | } |