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07bf635f RS |
1 | /* The lwlib interface to "xlwmenu" menus. |
2 | Copyright (C) 1992 Lucid, Inc. | |
92b47a4a | 3 | Copyright (C) 1994, 2000, 2001, 2002, 2003, 2004, |
4e6835db | 4 | 2005, 2006, 2007 Free Software Foundation, Inc. |
07bf635f RS |
5 | |
6 | This file is part of the Lucid Widget Library. | |
7 | ||
177c0ea7 | 8 | The Lucid Widget Library is free software; you can redistribute it and/or |
07bf635f RS |
9 | modify it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 1, or (at your option) | |
11 | any later version. | |
12 | ||
13 | The Lucid Widget Library is distributed in the hope that it will be useful, | |
177c0ea7 | 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
07bf635f RS |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
364c38d3 LK |
20 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
07bf635f | 22 | |
0f0912e6 PE |
23 | #ifdef HAVE_CONFIG_H |
24 | #include <config.h> | |
25 | #endif | |
26 | ||
e226063c | 27 | #include "lisp.h" |
2f96293d | 28 | |
07bf635f RS |
29 | #include "lwlib-Xlw.h" |
30 | #include <X11/StringDefs.h> | |
31 | #include <X11/IntrinsicP.h> | |
32 | #include <X11/ObjectP.h> | |
33 | #include <X11/CompositeP.h> | |
34 | #include <X11/Shell.h> | |
35 | #include "xlwmenu.h" | |
36 | ||
d3a785ff GM |
37 | #if 0 |
38 | ||
39 | #include <stdio.h> | |
40 | ||
41 | /* Print the complete X resource name of widget WIDGET to stderr. | |
42 | This is sometimes handy to have available. */ | |
43 | ||
44 | void | |
45 | x_print_complete_resource_name (widget) | |
46 | Widget widget; | |
47 | { | |
48 | int i; | |
49 | String names[100]; | |
50 | ||
51 | for (i = 0; i < 100 && widget != NULL; ++i) | |
52 | { | |
53 | names[i] = XtName (widget); | |
54 | widget = XtParent (widget); | |
55 | } | |
56 | ||
57 | for (--i; i >= 1; --i) | |
58 | fprintf (stderr, "%s.", names[i]); | |
59 | fprintf (stderr, "%s\n", names[0]); | |
60 | } | |
61 | ||
62 | #endif /* 0 */ | |
63 | ||
64 | ||
07bf635f | 65 | \f/* Menu callbacks */ |
fa616ec4 GM |
66 | |
67 | /* Callback XtNhighlightCallback for Lucid menus. W is the menu | |
68 | widget, CLIENT_DATA contains a pointer to the widget_instance | |
69 | for the menu, CALL_DATA contains a pointer to the widget_value | |
70 | structure for the highlighted menu item. The latter may be null | |
71 | if there isn't any highlighted menu item. */ | |
72 | ||
73 | static void | |
74 | highlight_hook (w, client_data, call_data) | |
75 | Widget w; | |
76 | XtPointer client_data; | |
77 | XtPointer call_data; | |
78 | { | |
79 | widget_instance *instance = (widget_instance *) client_data; | |
80 | ||
81 | if (instance->info->highlight_cb | |
82 | && !w->core.being_destroyed) | |
83 | instance->info->highlight_cb (w, instance->info->id, call_data); | |
84 | } | |
85 | ||
3fcd0186 JD |
86 | static void |
87 | enter_hook (w, client_data, call_data) | |
88 | Widget w; | |
89 | XtPointer client_data; | |
90 | XtPointer call_data; | |
91 | { | |
92 | highlight_hook (w, client_data, call_data); | |
93 | } | |
94 | ||
95 | static void | |
96 | leave_hook (w, client_data, call_data) | |
97 | Widget w; | |
98 | XtPointer client_data; | |
99 | XtPointer call_data; | |
100 | { | |
101 | highlight_hook (w, client_data, NULL); | |
102 | } | |
103 | ||
104 | ||
07bf635f | 105 | static void |
345a94f9 RS |
106 | pre_hook (w, client_data, call_data) |
107 | Widget w; | |
108 | XtPointer client_data; | |
109 | XtPointer call_data; | |
07bf635f RS |
110 | { |
111 | widget_instance* instance = (widget_instance*)client_data; | |
112 | widget_value* val; | |
113 | ||
114 | if (w->core.being_destroyed) | |
115 | return; | |
116 | ||
117 | val = lw_get_widget_value_for_widget (instance, w); | |
118 | if (instance->info->pre_activate_cb) | |
119 | instance->info->pre_activate_cb (w, instance->info->id, | |
120 | val ? val->call_data : NULL); | |
121 | } | |
122 | ||
123 | static void | |
345a94f9 RS |
124 | pick_hook (w, client_data, call_data) |
125 | Widget w; | |
126 | XtPointer client_data; | |
127 | XtPointer call_data; | |
07bf635f RS |
128 | { |
129 | widget_instance* instance = (widget_instance*)client_data; | |
130 | widget_value* contents_val = (widget_value*)call_data; | |
131 | widget_value* widget_val; | |
132 | XtPointer widget_arg; | |
133 | ||
134 | if (w->core.being_destroyed) | |
135 | return; | |
136 | ||
137 | if (instance->info->selection_cb && contents_val && contents_val->enabled | |
138 | && !contents_val->contents) | |
139 | instance->info->selection_cb (w, instance->info->id, | |
140 | contents_val->call_data); | |
141 | ||
142 | widget_val = lw_get_widget_value_for_widget (instance, w); | |
143 | widget_arg = widget_val ? widget_val->call_data : NULL; | |
144 | if (instance->info->post_activate_cb) | |
145 | instance->info->post_activate_cb (w, instance->info->id, widget_arg); | |
146 | ||
147 | } | |
148 | ||
149 | \f/* creation functions */ | |
0b96f00b | 150 | |
07bf635f | 151 | static Widget |
345a94f9 RS |
152 | xlw_create_menubar (instance) |
153 | widget_instance* instance; | |
07bf635f | 154 | { |
9acc68b1 | 155 | Widget widget; |
5acc1a62 | 156 | Arg al[5]; |
c52de5eb | 157 | int ac = 0; |
9acc68b1 | 158 | |
c52de5eb | 159 | XtSetArg (al[ac], XtNmenu, instance->info->val); ac++; |
5acc1a62 PR |
160 | #ifdef emacs |
161 | XtSetArg (al[ac], XtNshowGrip, 0); ac++; | |
162 | XtSetArg (al[ac], XtNresizeToPreferred, 1); ac++; | |
163 | XtSetArg (al[ac], XtNallowResize, 1); ac++; | |
164 | #endif | |
9acc68b1 | 165 | |
c52de5eb RS |
166 | /* This used to use XtVaCreateWidget, but an old Xt version |
167 | has a bug in XtVaCreateWidget that frees instance->info->name. */ | |
364e6904 | 168 | widget |
c52de5eb RS |
169 | = XtCreateWidget (instance->info->name, xlwMenuWidgetClass, |
170 | instance->parent, al, ac); | |
19240c20 | 171 | |
07bf635f RS |
172 | XtAddCallback (widget, XtNopen, pre_hook, (XtPointer)instance); |
173 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); | |
3fcd0186 JD |
174 | XtAddCallback (widget, XtNleaveCallback, leave_hook, (XtPointer)instance); |
175 | XtAddCallback (widget, XtNenterCallback, enter_hook, (XtPointer)instance); | |
07bf635f RS |
176 | return widget; |
177 | } | |
178 | ||
179 | static Widget | |
345a94f9 RS |
180 | xlw_create_popup_menu (instance) |
181 | widget_instance* instance; | |
07bf635f | 182 | { |
364e6904 RS |
183 | Widget popup_shell |
184 | = XtCreatePopupShell (instance->info->name, overrideShellWidgetClass, | |
185 | instance->parent, NULL, 0); | |
177c0ea7 | 186 | |
19240c20 | 187 | Widget widget; |
c52de5eb RS |
188 | Arg al[2]; |
189 | int ac = 0; | |
19240c20 | 190 | |
c52de5eb RS |
191 | XtSetArg (al[ac], XtNmenu, instance->info->val); ac++; |
192 | XtSetArg (al[ac], XtNhorizontal, False); ac++; | |
19240c20 | 193 | |
c52de5eb RS |
194 | /* This used to use XtVaManagedCreateWidget, but an old Xt version |
195 | has a bug in XtVaManagedCreateWidget that frees instance->info->name. */ | |
364e6904 | 196 | widget |
c52de5eb RS |
197 | = XtCreateManagedWidget ("popup", xlwMenuWidgetClass, |
198 | popup_shell, al, ac); | |
19240c20 | 199 | |
07bf635f | 200 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); |
3fcd0186 JD |
201 | XtAddCallback (widget, XtNleaveCallback, leave_hook, (XtPointer)instance); |
202 | XtAddCallback (widget, XtNenterCallback, enter_hook, (XtPointer)instance); | |
244c93fe | 203 | |
07bf635f RS |
204 | return popup_shell; |
205 | } | |
206 | ||
177c0ea7 | 207 | widget_creation_entry |
07bf635f RS |
208 | xlw_creation_table [] = |
209 | { | |
210 | {"menubar", xlw_create_menubar}, | |
211 | {"popup", xlw_create_popup_menu}, | |
212 | {NULL, NULL} | |
213 | }; | |
214 | ||
215 | Boolean | |
345a94f9 RS |
216 | lw_lucid_widget_p (widget) |
217 | Widget widget; | |
07bf635f RS |
218 | { |
219 | WidgetClass the_class = XtClass (widget); | |
364e6904 | 220 | |
07bf635f RS |
221 | if (the_class == xlwMenuWidgetClass) |
222 | return True; | |
223 | if (the_class == overrideShellWidgetClass) | |
364e6904 RS |
224 | return (XtClass (((CompositeWidget)widget)->composite.children [0]) |
225 | == xlwMenuWidgetClass); | |
07bf635f RS |
226 | return False; |
227 | } | |
228 | ||
229 | void | |
e226063c DL |
230 | #ifdef PROTOTYPES |
231 | xlw_update_one_widget (widget_instance* instance, Widget widget, | |
232 | widget_value* val, Boolean deep_p) | |
233 | #else | |
345a94f9 RS |
234 | xlw_update_one_widget (instance, widget, val, deep_p) |
235 | widget_instance* instance; | |
236 | Widget widget; | |
237 | widget_value* val; | |
238 | Boolean deep_p; | |
e226063c | 239 | #endif |
07bf635f | 240 | { |
c52de5eb | 241 | Arg al[1]; |
07bf635f | 242 | |
c52de5eb RS |
243 | /* This used to use XtVaSetValues, but some old Xt versions |
244 | that have a bug in XtVaCreateWidget might have it here too. */ | |
245 | XtSetArg (al[0], XtNmenu, instance->info->val); | |
246 | ||
247 | XtSetValues (widget, al, 1); | |
07bf635f RS |
248 | } |
249 | ||
250 | void | |
345a94f9 RS |
251 | xlw_update_one_value (instance, widget, val) |
252 | widget_instance* instance; | |
253 | Widget widget; | |
254 | widget_value* val; | |
07bf635f RS |
255 | { |
256 | return; | |
257 | } | |
258 | ||
259 | void | |
e226063c DL |
260 | #ifdef PROTOTYPES |
261 | xlw_pop_instance (widget_instance* instance, Boolean up) | |
262 | #else | |
345a94f9 RS |
263 | xlw_pop_instance (instance, up) |
264 | widget_instance* instance; | |
265 | Boolean up; | |
e226063c | 266 | #endif |
07bf635f RS |
267 | { |
268 | } | |
269 | ||
270 | void | |
0c7c510c | 271 | xlw_popup_menu (widget, event) |
345a94f9 | 272 | Widget widget; |
0c7c510c | 273 | XEvent *event; |
07bf635f | 274 | { |
07bf635f RS |
275 | XlwMenuWidget mw; |
276 | ||
277 | if (!XtIsShell (widget)) | |
278 | return; | |
279 | ||
280 | mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0]; | |
281 | ||
0c7c510c | 282 | if (event) |
244c93fe | 283 | XtCallActionProc ((Widget) mw, "start", event, NULL, 0); |
0c7c510c RS |
284 | else |
285 | { | |
244c93fe JD |
286 | XEvent dummy; |
287 | XButtonPressedEvent *bd = &dummy.xbutton; | |
288 | ||
289 | bd->type = ButtonPress; | |
290 | bd->serial = 0; | |
291 | bd->send_event = 0; | |
292 | bd->display = XtDisplay (widget); | |
293 | bd->window = XtWindow (XtParent (widget)); | |
294 | bd->time = CurrentTime; | |
295 | bd->button = 0; | |
296 | XQueryPointer (bd->display, bd->window, &bd->root, | |
297 | &bd->subwindow, &bd->x_root, &bd->y_root, | |
298 | &bd->x, &bd->y, &bd->state); | |
299 | ||
300 | XtCallActionProc ((Widget) mw, "start", &dummy, NULL, 0); | |
0c7c510c | 301 | } |
07bf635f RS |
302 | } |
303 | ||
304 | \f/* Destruction of instances */ | |
305 | void | |
345a94f9 RS |
306 | xlw_destroy_instance (instance) |
307 | widget_instance* instance; | |
07bf635f RS |
308 | { |
309 | if (instance->widget) | |
310 | XtDestroyWidget (instance->widget); | |
311 | } | |
312 | ||
ab5796a9 MB |
313 | /* arch-tag: 541e3912-477d-406e-9bf2-dbf2b7ff8c3b |
314 | (do not change this comment) */ |