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07bf635f RS |
1 | /* The lwlib interface to "xlwmenu" menus. |
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 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | The Lucid Widget Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
07bf635f | 20 | |
0f0912e6 PE |
21 | #ifdef HAVE_CONFIG_H |
22 | #include <config.h> | |
23 | #endif | |
24 | ||
07bf635f RS |
25 | #include "lwlib-Xlw.h" |
26 | #include <X11/StringDefs.h> | |
27 | #include <X11/IntrinsicP.h> | |
28 | #include <X11/ObjectP.h> | |
29 | #include <X11/CompositeP.h> | |
30 | #include <X11/Shell.h> | |
31 | #include "xlwmenu.h" | |
32 | ||
33 | \f/* Menu callbacks */ | |
fa616ec4 GM |
34 | |
35 | /* Callback XtNhighlightCallback for Lucid menus. W is the menu | |
36 | widget, CLIENT_DATA contains a pointer to the widget_instance | |
37 | for the menu, CALL_DATA contains a pointer to the widget_value | |
38 | structure for the highlighted menu item. The latter may be null | |
39 | if there isn't any highlighted menu item. */ | |
40 | ||
41 | static void | |
42 | highlight_hook (w, client_data, call_data) | |
43 | Widget w; | |
44 | XtPointer client_data; | |
45 | XtPointer call_data; | |
46 | { | |
47 | widget_instance *instance = (widget_instance *) client_data; | |
48 | ||
49 | if (instance->info->highlight_cb | |
50 | && !w->core.being_destroyed) | |
51 | instance->info->highlight_cb (w, instance->info->id, call_data); | |
52 | } | |
53 | ||
07bf635f | 54 | static void |
345a94f9 RS |
55 | pre_hook (w, client_data, call_data) |
56 | Widget w; | |
57 | XtPointer client_data; | |
58 | XtPointer call_data; | |
07bf635f RS |
59 | { |
60 | widget_instance* instance = (widget_instance*)client_data; | |
61 | widget_value* val; | |
62 | ||
63 | if (w->core.being_destroyed) | |
64 | return; | |
65 | ||
66 | val = lw_get_widget_value_for_widget (instance, w); | |
67 | if (instance->info->pre_activate_cb) | |
68 | instance->info->pre_activate_cb (w, instance->info->id, | |
69 | val ? val->call_data : NULL); | |
70 | } | |
71 | ||
72 | static void | |
345a94f9 RS |
73 | pick_hook (w, client_data, call_data) |
74 | Widget w; | |
75 | XtPointer client_data; | |
76 | XtPointer call_data; | |
07bf635f RS |
77 | { |
78 | widget_instance* instance = (widget_instance*)client_data; | |
79 | widget_value* contents_val = (widget_value*)call_data; | |
80 | widget_value* widget_val; | |
81 | XtPointer widget_arg; | |
82 | ||
83 | if (w->core.being_destroyed) | |
84 | return; | |
85 | ||
86 | if (instance->info->selection_cb && contents_val && contents_val->enabled | |
87 | && !contents_val->contents) | |
88 | instance->info->selection_cb (w, instance->info->id, | |
89 | contents_val->call_data); | |
90 | ||
91 | widget_val = lw_get_widget_value_for_widget (instance, w); | |
92 | widget_arg = widget_val ? widget_val->call_data : NULL; | |
93 | if (instance->info->post_activate_cb) | |
94 | instance->info->post_activate_cb (w, instance->info->id, widget_arg); | |
95 | ||
96 | } | |
97 | ||
98 | \f/* creation functions */ | |
0b96f00b | 99 | |
07bf635f | 100 | static Widget |
345a94f9 RS |
101 | xlw_create_menubar (instance) |
102 | widget_instance* instance; | |
07bf635f | 103 | { |
9acc68b1 | 104 | Widget widget; |
5acc1a62 | 105 | Arg al[5]; |
c52de5eb | 106 | int ac = 0; |
9acc68b1 | 107 | |
c52de5eb | 108 | XtSetArg (al[ac], XtNmenu, instance->info->val); ac++; |
5acc1a62 PR |
109 | #ifdef emacs |
110 | XtSetArg (al[ac], XtNshowGrip, 0); ac++; | |
111 | XtSetArg (al[ac], XtNresizeToPreferred, 1); ac++; | |
112 | XtSetArg (al[ac], XtNallowResize, 1); ac++; | |
113 | #endif | |
9acc68b1 | 114 | |
c52de5eb RS |
115 | /* This used to use XtVaCreateWidget, but an old Xt version |
116 | has a bug in XtVaCreateWidget that frees instance->info->name. */ | |
364e6904 | 117 | widget |
c52de5eb RS |
118 | = XtCreateWidget (instance->info->name, xlwMenuWidgetClass, |
119 | instance->parent, al, ac); | |
19240c20 | 120 | |
07bf635f RS |
121 | XtAddCallback (widget, XtNopen, pre_hook, (XtPointer)instance); |
122 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); | |
fa616ec4 GM |
123 | XtAddCallback (widget, XtNhighlightCallback, highlight_hook, |
124 | (XtPointer)instance); | |
07bf635f RS |
125 | return widget; |
126 | } | |
127 | ||
128 | static Widget | |
345a94f9 RS |
129 | xlw_create_popup_menu (instance) |
130 | widget_instance* instance; | |
07bf635f | 131 | { |
364e6904 RS |
132 | Widget popup_shell |
133 | = XtCreatePopupShell (instance->info->name, overrideShellWidgetClass, | |
134 | instance->parent, NULL, 0); | |
07bf635f | 135 | |
19240c20 | 136 | Widget widget; |
c52de5eb RS |
137 | Arg al[2]; |
138 | int ac = 0; | |
19240c20 | 139 | |
c52de5eb RS |
140 | XtSetArg (al[ac], XtNmenu, instance->info->val); ac++; |
141 | XtSetArg (al[ac], XtNhorizontal, False); ac++; | |
19240c20 | 142 | |
c52de5eb RS |
143 | /* This used to use XtVaManagedCreateWidget, but an old Xt version |
144 | has a bug in XtVaManagedCreateWidget that frees instance->info->name. */ | |
364e6904 | 145 | widget |
c52de5eb RS |
146 | = XtCreateManagedWidget ("popup", xlwMenuWidgetClass, |
147 | popup_shell, al, ac); | |
19240c20 | 148 | |
07bf635f | 149 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); |
fa616ec4 GM |
150 | XtAddCallback (widget, XtNhighlightCallback, highlight_hook, |
151 | (XtPointer)instance); | |
07bf635f RS |
152 | return popup_shell; |
153 | } | |
154 | ||
155 | widget_creation_entry | |
156 | xlw_creation_table [] = | |
157 | { | |
158 | {"menubar", xlw_create_menubar}, | |
159 | {"popup", xlw_create_popup_menu}, | |
160 | {NULL, NULL} | |
161 | }; | |
162 | ||
163 | Boolean | |
345a94f9 RS |
164 | lw_lucid_widget_p (widget) |
165 | Widget widget; | |
07bf635f RS |
166 | { |
167 | WidgetClass the_class = XtClass (widget); | |
364e6904 | 168 | |
07bf635f RS |
169 | if (the_class == xlwMenuWidgetClass) |
170 | return True; | |
171 | if (the_class == overrideShellWidgetClass) | |
364e6904 RS |
172 | return (XtClass (((CompositeWidget)widget)->composite.children [0]) |
173 | == xlwMenuWidgetClass); | |
07bf635f RS |
174 | return False; |
175 | } | |
176 | ||
177 | void | |
345a94f9 RS |
178 | xlw_update_one_widget (instance, widget, val, deep_p) |
179 | widget_instance* instance; | |
180 | Widget widget; | |
181 | widget_value* val; | |
182 | Boolean deep_p; | |
07bf635f RS |
183 | { |
184 | XlwMenuWidget mw; | |
c52de5eb | 185 | Arg al[1]; |
07bf635f RS |
186 | |
187 | if (XtIsShell (widget)) | |
188 | mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0]; | |
189 | else | |
190 | mw = (XlwMenuWidget)widget; | |
c52de5eb RS |
191 | |
192 | /* This used to use XtVaSetValues, but some old Xt versions | |
193 | that have a bug in XtVaCreateWidget might have it here too. */ | |
194 | XtSetArg (al[0], XtNmenu, instance->info->val); | |
195 | ||
196 | XtSetValues (widget, al, 1); | |
07bf635f RS |
197 | } |
198 | ||
199 | void | |
345a94f9 RS |
200 | xlw_update_one_value (instance, widget, val) |
201 | widget_instance* instance; | |
202 | Widget widget; | |
203 | widget_value* val; | |
07bf635f RS |
204 | { |
205 | return; | |
206 | } | |
207 | ||
208 | void | |
345a94f9 RS |
209 | xlw_pop_instance (instance, up) |
210 | widget_instance* instance; | |
211 | Boolean up; | |
07bf635f RS |
212 | { |
213 | } | |
214 | ||
215 | void | |
0c7c510c | 216 | xlw_popup_menu (widget, event) |
345a94f9 | 217 | Widget widget; |
0c7c510c | 218 | XEvent *event; |
07bf635f RS |
219 | { |
220 | XButtonPressedEvent dummy; | |
221 | XlwMenuWidget mw; | |
222 | ||
223 | if (!XtIsShell (widget)) | |
224 | return; | |
225 | ||
226 | mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0]; | |
227 | ||
0c7c510c | 228 | if (event) |
af5e64bc | 229 | pop_up_menu (mw, (XButtonPressedEvent*) event); |
0c7c510c RS |
230 | else |
231 | { | |
232 | dummy.type = ButtonPress; | |
233 | dummy.serial = 0; | |
234 | dummy.send_event = 0; | |
235 | dummy.display = XtDisplay (widget); | |
236 | dummy.window = XtWindow (XtParent (widget)); | |
237 | dummy.time = CurrentTime; | |
238 | dummy.button = 0; | |
239 | XQueryPointer (dummy.display, dummy.window, &dummy.root, | |
240 | &dummy.subwindow, &dummy.x_root, &dummy.y_root, | |
241 | &dummy.x, &dummy.y, &dummy.state); | |
242 | ||
243 | pop_up_menu (mw, &dummy); | |
244 | } | |
07bf635f RS |
245 | } |
246 | ||
247 | \f/* Destruction of instances */ | |
248 | void | |
345a94f9 RS |
249 | xlw_destroy_instance (instance) |
250 | widget_instance* instance; | |
07bf635f RS |
251 | { |
252 | if (instance->widget) | |
253 | XtDestroyWidget (instance->widget); | |
254 | } | |
255 |