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comparison: ui/motif/menu.c

ui/motif/menu.c

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1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2014 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <stdarg.h>
32
33 #include "menu.h"
34 #include "button.h"
35 #include "toolkit.h"
36 #include "stock.h"
37 #include "container.h"
38 #include "../common/context.h"
39 #include "../ui/window.h"
40
41 #include <cx/linked_list.h>
42 #include <cx/array_list.h>
43
44 static ui_menu_add_f createMenuItem[] = {
45 /* UI_MENU */ add_menu_widget,
46 /* UI_MENU_SUBMENU */ add_menu_widget,
47 /* UI_MENU_ITEM */ add_menuitem_widget,
48 /* UI_MENU_STOCK_ITEM */ add_menuitem_st_widget,
49 /* UI_MENU_CHECK_ITEM */ add_checkitem_widget,
50 /* UI_MENU_CHECK_ITEM_NV */ add_checkitemnv_widget,
51 /* UI_MENU_ITEM_LIST */ add_menuitem_list_widget,
52 /* UI_MENU_ITEM_LIST_NV */ NULL, // TODO
53 /* UI_MENU_SEPARATOR */ add_menuseparator_widget
54 };
55
56 // private menu functions
57 void ui_create_menubar(UiObject *obj) {
58 UiMenu *menus = uic_get_menu_list();
59 if(!menus) {
60 return;
61 }
62
63 Widget menubar = XmCreateMenuBar(obj->widget, "main_list", NULL, 0);
64 XtManageChild(menubar);
65
66 UiMenu *menu = menus;
67 int menu_index = 0;
68 while(menu) {
69 menu_index += add_menu_widget(menubar, menu_index, &menu->item, obj);
70
71 menu = (UiMenu*)menu->item.next;
72 }
73 }
74
75 int add_menu_widget(Widget parent, int i, UiMenuItemI *item, UiObject *obj) {
76 UiMenu *menu = (UiMenu*)item;
77
78 Widget menuItem = XtVaCreateManagedWidget(
79 menu->label,
80 xmCascadeButtonWidgetClass,
81 parent,
82 NULL);
83 Widget m = XmVaCreateSimplePulldownMenu(parent, menu->label, i, NULL, NULL);
84
85 UiMenuItemI *mi = menu->items_begin;
86 int menu_index = 0;
87 while(mi) {
88 menu_index += createMenuItem[mi->type](m, menu_index, mi, obj);
89 mi = mi->next;
90 }
91
92 return 1;
93 }
94
95 int add_menuitem_widget(
96 Widget parent,
97 int i,
98 UiMenuItemI *item,
99 UiObject *obj)
100 {
101 UiMenuItem *mi = (UiMenuItem*)item;
102
103 Arg args[1];
104 XmString label = XmStringCreateLocalized(mi->label);
105 XtSetArg(args[0], XmNlabelString, label);
106
107 Widget mitem = XtCreateManagedWidget(
108 "menubutton",
109 xmPushButtonWidgetClass,
110 parent,
111 args,
112 1);
113 XmStringFree(label);
114
115 if(mi->callback != NULL) {
116 UiEventData *event = cxMalloc(
117 obj->ctx->allocator,
118 sizeof(UiEventData));
119 event->obj = obj;
120 event->userdata = mi->userdata;
121 event->callback = mi->callback;
122 event->value = 0;
123 XtAddCallback(
124 mitem,
125 XmNactivateCallback,
126 (XtCallbackProc)ui_push_button_callback,
127 event);
128 }
129
130 if(mi->groups) {
131 uic_add_group_widget(obj->ctx, mitem, (ui_enablefunc)XtSetSensitive, mi->groups);
132 }
133
134 return 1;
135 }
136
137 int add_menuitem_st_widget(Widget parent, int i, UiMenuItemI *item, UiObject *obj) {
138 UiStMenuItem *mi = (UiStMenuItem*)item;
139
140 UiStockItem *si = ui_get_stock_item(mi->stockid);
141 if(!si) {
142 fprintf(stderr, "UI Error: unknown stock id: %s\n", mi->stockid);
143 return 0;
144 }
145
146 int n = 0;
147 Arg args[4];
148 XmString label = XmStringCreateLocalized(si->label);
149 XmString at = NULL;
150
151 XtSetArg(args[n], XmNlabelString, label);
152 n++;
153 if(si->accelerator) {
154 XtSetArg(args[n], XmNaccelerator, si->accelerator);
155 n++;
156 }
157 if(si->accelerator_label) {
158 at = XmStringCreateLocalized(si->accelerator_label);
159 XtSetArg(args[n], XmNacceleratorText, at);
160 n++;
161 }
162
163 Widget mitem = XtCreateManagedWidget(
164 "menubutton",
165 xmPushButtonWidgetClass,
166 parent,
167 args,
168 n);
169 XmStringFree(label);
170 if(at) {
171 XmStringFree(at);
172 }
173
174 if(mi->callback != NULL) {
175 UiEventData *event = cxMalloc(
176 obj->ctx->allocator,
177 sizeof(UiEventData));
178 event->obj = obj;
179 event->userdata = mi->userdata;
180 event->callback = mi->callback;
181 event->value = 0;
182 XtAddCallback(
183 mitem,
184 XmNactivateCallback,
185 (XtCallbackProc)ui_push_button_callback,
186 event);
187 }
188
189 if(mi->groups) {
190 uic_add_group_widget(obj->ctx, mitem, (ui_enablefunc)XtSetSensitive, mi->groups);
191 }
192
193 return 1;
194 }
195
196 int add_menuseparator_widget(
197 Widget parent,
198 int i,
199 UiMenuItemI *item,
200 UiObject *obj)
201 {
202 Widget s = XmCreateSeparatorGadget (parent, "menu_separator", NULL, 0);
203 XtManageChild(s);
204 return 1;
205 }
206
207 int add_checkitem_widget(
208 Widget parent,
209 int i,
210 UiMenuItemI *item,
211 UiObject *obj)
212 {
213 UiCheckItem *ci = (UiCheckItem*)item;
214
215 Arg args[3];
216 XmString label = XmStringCreateLocalized(ci->label);
217 XtSetArg(args[0], XmNlabelString, label);
218 XtSetArg(args[1], XmNvisibleWhenOff, 1);
219 Widget checkbox = XtCreateManagedWidget(
220 "menutogglebutton",
221 xmToggleButtonWidgetClass,
222 parent,
223 args,
224 2);
225 XmStringFree(label);
226
227 if(ci->callback) {
228 UiEventData *event = cxMalloc(
229 obj->ctx->allocator,
230 sizeof(UiEventData));
231 event->obj = obj;
232 event->userdata = ci->userdata;
233 event->callback = ci->callback;
234 XtAddCallback(
235 checkbox,
236 XmNvalueChangedCallback,
237 (XtCallbackProc)ui_toggle_button_callback,
238 event);
239 }
240
241 return 1;
242 }
243
244 int add_checkitemnv_widget(
245 Widget parent,
246 int i,
247 UiMenuItemI *item,
248 UiObject *obj)
249 {
250 UiCheckItemNV *ci = (UiCheckItemNV*)item;
251
252 Arg args[3];
253 XmString label = XmStringCreateLocalized(ci->label);
254 XtSetArg(args[0], XmNlabelString, label);
255 XtSetArg(args[1], XmNvisibleWhenOff, 1);
256 Widget checkbox = XtCreateManagedWidget(
257 "menutogglebutton",
258 xmToggleButtonWidgetClass,
259 parent,
260 args,
261 2);
262 XmStringFree(label);
263
264 UiVar *var = uic_create_var(obj->ctx, ci->varname, UI_VAR_INTEGER);
265 if(var) {
266 UiInteger *value = var->value;
267 value->obj = checkbox;
268 value->get = ui_toggle_button_get;
269 value->set = ui_toggle_button_set;
270 value = 0;
271 } else {
272 // TODO: error
273 }
274
275 return 1;
276 }
277
278 int add_menuitem_list_widget(
279 Widget parent,
280 int i,
281 UiMenuItemI *item,
282 UiObject *obj)
283 {
284 UiMenuItemList *il = (UiMenuItemList*)item;
285
286 UiActiveMenuItemList *ls = cxMalloc(
287 obj->ctx->allocator,
288 sizeof(UiActiveMenuItemList));
289
290 ls->object = obj;
291 ls->menu = parent;
292 ls->index = i;
293 ls->oldcount = 0;
294 ls->list = il->list;
295 ls->callback = il->callback;
296 ls->userdata = il->userdata;
297
298 ls->list->observers = ui_add_observer(
299 ls->list->observers,
300 (ui_callback)ui_update_menuitem_list,
301 ls);
302
303 ui_update_menuitem_list(NULL, ls);
304
305 return 0;
306 }
307
308 void ui_update_menuitem_list(UiEvent *event, UiActiveMenuItemList *list) {
309 Arg args[4];
310
311 // remove old items
312 if(list->oldcount > 0) {
313 Widget *children;
314 int nc;
315
316 XtVaGetValues(
317 list->menu,
318 XmNchildren,
319 &children,
320 XmNnumChildren,
321 &nc,
322 NULL);
323
324 for(int i=0;i<list->oldcount;i++) {
325 XtDestroyWidget(children[list->index + i]);
326 }
327 }
328
329 char *str = ui_list_first(list->list);
330 if(str) {
331 // add separator
332 XtSetArg(args[0], XmNpositionIndex, list->index);
333 Widget s = XmCreateSeparatorGadget (list->menu, "menu_separator", args, 1);
334 XtManageChild(s);
335 }
336 int i = 1;
337 while(str) {
338 XmString label = XmStringCreateLocalized(str);
339 XtSetArg(args[0], XmNlabelString, label);
340 XtSetArg(args[1], XmNpositionIndex, list->index + i);
341
342 Widget mitem = XtCreateManagedWidget(
343 "menubutton",
344 xmPushButtonWidgetClass,
345 list->menu,
346 args,
347 2);
348 XmStringFree(label);
349
350 if(list->callback) {
351 // TODO: use mempool
352 UiEventData *event = malloc(sizeof(UiEventData));
353 event->obj = list->object;
354 event->userdata = list->userdata;
355 event->callback = list->callback;
356 event->value = i - 1;
357
358 XtAddCallback(
359 mitem,
360 XmNactivateCallback,
361 (XtCallbackProc)ui_push_button_callback,
362 event);
363 }
364
365 str = ui_list_next(list->list);
366 i++;
367 }
368
369 list->oldcount = i;
370 }
371
372 void ui_menu_event_wrapper(Widget widget, XtPointer udata, XtPointer cdata) {
373 UiEventData *event = udata;
374 UiEvent e;
375 e.obj = event->obj;
376 e.window = event->obj->window;
377 e.document = event->obj->ctx->document;
378 e.intval = 0;
379 event->callback(&e, event->userdata);
380 }
381
382
383 /*
384 * widget menu functions
385 */
386
387 static void ui_popup_handler(Widget widget, XtPointer data, XEvent *event, Boolean *c) {
388 Widget menu = data;
389 XmMenuPosition(menu, (XButtonPressedEvent *)event);
390 XtManageChild(menu);
391
392 *c = FALSE;
393 }
394
395 UIMENU ui_contextmenu(UiObject *obj) {
396 UiContainer *ct = uic_get_current_container(obj);
397 if(ct->current) {
398 return ui_contextmenu_w(obj, ct->current);
399 } else {
400 return NULL; // TODO: warn
401 }
402 }
403
404 UIMENU ui_contextmenu_w(UiObject *obj, UIWIDGET widget) {
405 UiContainer *ct = uic_get_current_container(obj);
406
407 Widget menu = XmCreatePopupMenu(widget, "popup_menu", NULL, 0);
408 ct->menu = menu;
409
410 XtAddEventHandler(widget, ButtonPressMask, FALSE, ui_popup_handler, menu);
411
412 return menu;
413 }
414
415 void ui_contextmenu_popup(UIMENU menu) {
416
417 }
418
419 void ui_widget_menuitem(UiObject *obj, char *label, ui_callback f, void *userdata) {
420 ui_widget_menuitem_gr(obj, label, f, userdata, -1);
421 }
422
423 void ui_widget_menuitem_gr(UiObject *obj, char *label, ui_callback f, void *userdata, ...) {
424 UiContainer *ct = uic_get_current_container(obj);
425 if(!ct->menu) {
426 return;
427 }
428
429 // add groups
430 CxList *groups = NULL;
431 va_list ap;
432 va_start(ap, userdata);
433 int group;
434 while((group = va_arg(ap, int)) != -1) {
435 if(!groups) {
436 groups = cxArrayListCreate(cxDefaultAllocator, NULL, sizeof(int), 16);
437 }
438 cxListAdd(groups, &group);
439 }
440 va_end(ap);
441
442 // create menuitem
443 Arg args[4];
444 XmString labelstr = XmStringCreateLocalized(label);
445 XtSetArg(args[0], XmNlabelString, labelstr);
446
447 Widget item = XmCreatePushButton(ct->menu, "menu_button", args, 1);
448 XtManageChild(item);
449 XmStringFree(labelstr);
450 }
451
452 void ui_widget_menuitem_st(UiObject *obj, char *stockid, ui_callback f, void *userdata) {
453 ui_widget_menuitem_stgr(obj, stockid, f, userdata, -1);
454 }
455
456 void ui_widget_menuitem_stgr(UiObject *obj, char *stockid, ui_callback f, void *userdata, ...) {
457 UiContainer *ct = uic_get_current_container(obj);
458 if(!ct->menu) {
459 return;
460 }
461
462 // add groups
463 CxList *groups = NULL;
464 va_list ap;
465 va_start(ap, userdata);
466 int group;
467 while((group = va_arg(ap, int)) != -1) {
468 if(!groups) {
469 groups = cxArrayListCreate(cxDefaultAllocator, NULL, sizeof(int), 16);
470 }
471 cxListAdd(groups, &group);
472 }
473 va_end(ap);
474
475 // create menuitem
476 UiStockItem *stockItem = ui_get_stock_item(stockid);
477 Arg args[4];
478 XmString labelstr = XmStringCreateLocalized(stockItem->label);
479 XtSetArg(args[0], XmNlabelString, labelstr);
480
481 Widget item = XmCreatePushButton(ct->menu, "menu_button", args, 1);
482 XtManageChild(item);
483 XmStringFree(labelstr);
484 }

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