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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 | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #include "lwlib-Xlw.h" | |
21 | #include <X11/StringDefs.h> | |
22 | #include <X11/IntrinsicP.h> | |
23 | #include <X11/ObjectP.h> | |
24 | #include <X11/CompositeP.h> | |
25 | #include <X11/Shell.h> | |
26 | #include "xlwmenu.h" | |
27 | ||
28 | \f/* Menu callbacks */ | |
29 | static void | |
345a94f9 RS |
30 | pre_hook (w, client_data, call_data) |
31 | Widget w; | |
32 | XtPointer client_data; | |
33 | XtPointer call_data; | |
07bf635f RS |
34 | { |
35 | widget_instance* instance = (widget_instance*)client_data; | |
36 | widget_value* val; | |
37 | ||
38 | if (w->core.being_destroyed) | |
39 | return; | |
40 | ||
41 | val = lw_get_widget_value_for_widget (instance, w); | |
42 | if (instance->info->pre_activate_cb) | |
43 | instance->info->pre_activate_cb (w, instance->info->id, | |
44 | val ? val->call_data : NULL); | |
45 | } | |
46 | ||
47 | static void | |
345a94f9 RS |
48 | pick_hook (w, client_data, call_data) |
49 | Widget w; | |
50 | XtPointer client_data; | |
51 | XtPointer call_data; | |
07bf635f RS |
52 | { |
53 | widget_instance* instance = (widget_instance*)client_data; | |
54 | widget_value* contents_val = (widget_value*)call_data; | |
55 | widget_value* widget_val; | |
56 | XtPointer widget_arg; | |
57 | ||
58 | if (w->core.being_destroyed) | |
59 | return; | |
60 | ||
61 | if (instance->info->selection_cb && contents_val && contents_val->enabled | |
62 | && !contents_val->contents) | |
63 | instance->info->selection_cb (w, instance->info->id, | |
64 | contents_val->call_data); | |
65 | ||
66 | widget_val = lw_get_widget_value_for_widget (instance, w); | |
67 | widget_arg = widget_val ? widget_val->call_data : NULL; | |
68 | if (instance->info->post_activate_cb) | |
69 | instance->info->post_activate_cb (w, instance->info->id, widget_arg); | |
70 | ||
71 | } | |
72 | ||
73 | \f/* creation functions */ | |
0b96f00b | 74 | |
07bf635f | 75 | static Widget |
345a94f9 RS |
76 | xlw_create_menubar (instance) |
77 | widget_instance* instance; | |
07bf635f | 78 | { |
9acc68b1 | 79 | Widget widget; |
5acc1a62 | 80 | Arg al[5]; |
c52de5eb | 81 | int ac = 0; |
9acc68b1 | 82 | |
c52de5eb | 83 | XtSetArg (al[ac], XtNmenu, instance->info->val); ac++; |
5acc1a62 PR |
84 | #ifdef emacs |
85 | XtSetArg (al[ac], XtNshowGrip, 0); ac++; | |
86 | XtSetArg (al[ac], XtNresizeToPreferred, 1); ac++; | |
87 | XtSetArg (al[ac], XtNallowResize, 1); ac++; | |
88 | #endif | |
9acc68b1 | 89 | |
c52de5eb RS |
90 | /* This used to use XtVaCreateWidget, but an old Xt version |
91 | has a bug in XtVaCreateWidget that frees instance->info->name. */ | |
364e6904 | 92 | widget |
c52de5eb RS |
93 | = XtCreateWidget (instance->info->name, xlwMenuWidgetClass, |
94 | instance->parent, al, ac); | |
19240c20 | 95 | |
07bf635f RS |
96 | XtAddCallback (widget, XtNopen, pre_hook, (XtPointer)instance); |
97 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); | |
98 | return widget; | |
99 | } | |
100 | ||
101 | static Widget | |
345a94f9 RS |
102 | xlw_create_popup_menu (instance) |
103 | widget_instance* instance; | |
07bf635f | 104 | { |
364e6904 RS |
105 | Widget popup_shell |
106 | = XtCreatePopupShell (instance->info->name, overrideShellWidgetClass, | |
107 | instance->parent, NULL, 0); | |
07bf635f | 108 | |
19240c20 | 109 | Widget widget; |
c52de5eb RS |
110 | Arg al[2]; |
111 | int ac = 0; | |
19240c20 | 112 | |
c52de5eb RS |
113 | XtSetArg (al[ac], XtNmenu, instance->info->val); ac++; |
114 | XtSetArg (al[ac], XtNhorizontal, False); ac++; | |
19240c20 | 115 | |
c52de5eb RS |
116 | /* This used to use XtVaManagedCreateWidget, but an old Xt version |
117 | has a bug in XtVaManagedCreateWidget that frees instance->info->name. */ | |
364e6904 | 118 | widget |
c52de5eb RS |
119 | = XtCreateManagedWidget ("popup", xlwMenuWidgetClass, |
120 | popup_shell, al, ac); | |
19240c20 | 121 | |
07bf635f RS |
122 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); |
123 | ||
124 | return popup_shell; | |
125 | } | |
126 | ||
127 | widget_creation_entry | |
128 | xlw_creation_table [] = | |
129 | { | |
130 | {"menubar", xlw_create_menubar}, | |
131 | {"popup", xlw_create_popup_menu}, | |
132 | {NULL, NULL} | |
133 | }; | |
134 | ||
135 | Boolean | |
345a94f9 RS |
136 | lw_lucid_widget_p (widget) |
137 | Widget widget; | |
07bf635f RS |
138 | { |
139 | WidgetClass the_class = XtClass (widget); | |
364e6904 | 140 | |
07bf635f RS |
141 | if (the_class == xlwMenuWidgetClass) |
142 | return True; | |
143 | if (the_class == overrideShellWidgetClass) | |
364e6904 RS |
144 | return (XtClass (((CompositeWidget)widget)->composite.children [0]) |
145 | == xlwMenuWidgetClass); | |
07bf635f RS |
146 | return False; |
147 | } | |
148 | ||
149 | void | |
345a94f9 RS |
150 | xlw_update_one_widget (instance, widget, val, deep_p) |
151 | widget_instance* instance; | |
152 | Widget widget; | |
153 | widget_value* val; | |
154 | Boolean deep_p; | |
07bf635f RS |
155 | { |
156 | XlwMenuWidget mw; | |
c52de5eb | 157 | Arg al[1]; |
07bf635f RS |
158 | |
159 | if (XtIsShell (widget)) | |
160 | mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0]; | |
161 | else | |
162 | mw = (XlwMenuWidget)widget; | |
c52de5eb RS |
163 | |
164 | /* This used to use XtVaSetValues, but some old Xt versions | |
165 | that have a bug in XtVaCreateWidget might have it here too. */ | |
166 | XtSetArg (al[0], XtNmenu, instance->info->val); | |
167 | ||
168 | XtSetValues (widget, al, 1); | |
07bf635f RS |
169 | } |
170 | ||
171 | void | |
345a94f9 RS |
172 | xlw_update_one_value (instance, widget, val) |
173 | widget_instance* instance; | |
174 | Widget widget; | |
175 | widget_value* val; | |
07bf635f RS |
176 | { |
177 | return; | |
178 | } | |
179 | ||
180 | void | |
345a94f9 RS |
181 | xlw_pop_instance (instance, up) |
182 | widget_instance* instance; | |
183 | Boolean up; | |
07bf635f RS |
184 | { |
185 | } | |
186 | ||
187 | void | |
345a94f9 RS |
188 | xlw_popup_menu (widget) |
189 | Widget widget; | |
07bf635f RS |
190 | { |
191 | XButtonPressedEvent dummy; | |
192 | XlwMenuWidget mw; | |
193 | ||
194 | if (!XtIsShell (widget)) | |
195 | return; | |
196 | ||
197 | mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0]; | |
198 | ||
199 | dummy.type = ButtonPress; | |
200 | dummy.serial = 0; | |
201 | dummy.send_event = 0; | |
202 | dummy.display = XtDisplay (widget); | |
203 | dummy.window = XtWindow (XtParent (widget)); | |
204 | dummy.time = CurrentTime; | |
205 | dummy.button = 0; | |
206 | XQueryPointer (dummy.display, dummy.window, &dummy.root, | |
207 | &dummy.subwindow, &dummy.x_root, &dummy.y_root, | |
208 | &dummy.x, &dummy.y, &dummy.state); | |
209 | ||
210 | pop_up_menu (mw, &dummy); | |
211 | } | |
212 | ||
213 | \f/* Destruction of instances */ | |
214 | void | |
345a94f9 RS |
215 | xlw_destroy_instance (instance) |
216 | widget_instance* instance; | |
07bf635f RS |
217 | { |
218 | if (instance->widget) | |
219 | XtDestroyWidget (instance->widget); | |
220 | } | |
221 |