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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 FP |
79 | Widget widget; |
80 | ||
0b96f00b | 81 | widget_value *tem = malloc_widget_value (); |
9acc68b1 FP |
82 | |
83 | /* _XtCreate is freeing the object we passed, | |
84 | so make a copy that we free later. */ | |
85 | bcopy (instance->info->val, tem, sizeof (widget_value)); | |
86 | ||
87 | widget = | |
07bf635f RS |
88 | XtVaCreateWidget (instance->info->name, xlwMenuWidgetClass, |
89 | instance->parent, | |
eb624afa | 90 | XtNmenu, tem, |
07bf635f | 91 | 0); |
19240c20 | 92 | |
0b96f00b | 93 | free_widget_value (tem); |
19240c20 | 94 | |
07bf635f RS |
95 | XtAddCallback (widget, XtNopen, pre_hook, (XtPointer)instance); |
96 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); | |
97 | return widget; | |
98 | } | |
99 | ||
100 | static Widget | |
345a94f9 RS |
101 | xlw_create_popup_menu (instance) |
102 | widget_instance* instance; | |
07bf635f RS |
103 | { |
104 | Widget popup_shell = | |
105 | XtCreatePopupShell (instance->info->name, overrideShellWidgetClass, | |
106 | instance->parent, NULL, 0); | |
107 | ||
19240c20 FP |
108 | Widget widget; |
109 | ||
0b96f00b | 110 | widget_value *tem = malloc_widget_value (); |
19240c20 FP |
111 | |
112 | /* _XtCreate is freeing the object we passed, | |
113 | so make a copy that we free later. */ | |
114 | bcopy (instance->info->val, tem, sizeof (widget_value)); | |
115 | ||
116 | widget = | |
07bf635f RS |
117 | XtVaCreateManagedWidget ("popup", xlwMenuWidgetClass, |
118 | popup_shell, | |
eb624afa | 119 | XtNmenu, tem, |
07bf635f RS |
120 | XtNhorizontal, False, |
121 | 0); | |
122 | ||
0b96f00b | 123 | free_widget_value (tem); |
19240c20 | 124 | |
07bf635f RS |
125 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); |
126 | ||
127 | return popup_shell; | |
128 | } | |
129 | ||
130 | widget_creation_entry | |
131 | xlw_creation_table [] = | |
132 | { | |
133 | {"menubar", xlw_create_menubar}, | |
134 | {"popup", xlw_create_popup_menu}, | |
135 | {NULL, NULL} | |
136 | }; | |
137 | ||
138 | Boolean | |
345a94f9 RS |
139 | lw_lucid_widget_p (widget) |
140 | Widget widget; | |
07bf635f RS |
141 | { |
142 | WidgetClass the_class = XtClass (widget); | |
143 | if (the_class == xlwMenuWidgetClass) | |
144 | return True; | |
145 | if (the_class == overrideShellWidgetClass) | |
146 | return | |
147 | XtClass (((CompositeWidget)widget)->composite.children [0]) | |
148 | == xlwMenuWidgetClass; | |
149 | return False; | |
150 | } | |
151 | ||
152 | void | |
345a94f9 RS |
153 | xlw_update_one_widget (instance, widget, val, deep_p) |
154 | widget_instance* instance; | |
155 | Widget widget; | |
156 | widget_value* val; | |
157 | Boolean deep_p; | |
07bf635f RS |
158 | { |
159 | XlwMenuWidget mw; | |
160 | ||
161 | if (XtIsShell (widget)) | |
162 | mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0]; | |
163 | else | |
164 | mw = (XlwMenuWidget)widget; | |
165 | XtVaSetValues (widget, XtNmenu, val, 0); | |
166 | } | |
167 | ||
168 | void | |
345a94f9 RS |
169 | xlw_update_one_value (instance, widget, val) |
170 | widget_instance* instance; | |
171 | Widget widget; | |
172 | widget_value* val; | |
07bf635f RS |
173 | { |
174 | return; | |
175 | } | |
176 | ||
177 | void | |
345a94f9 RS |
178 | xlw_pop_instance (instance, up) |
179 | widget_instance* instance; | |
180 | Boolean up; | |
07bf635f RS |
181 | { |
182 | } | |
183 | ||
184 | void | |
345a94f9 RS |
185 | xlw_popup_menu (widget) |
186 | Widget widget; | |
07bf635f RS |
187 | { |
188 | XButtonPressedEvent dummy; | |
189 | XlwMenuWidget mw; | |
190 | ||
191 | if (!XtIsShell (widget)) | |
192 | return; | |
193 | ||
194 | mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0]; | |
195 | ||
196 | dummy.type = ButtonPress; | |
197 | dummy.serial = 0; | |
198 | dummy.send_event = 0; | |
199 | dummy.display = XtDisplay (widget); | |
200 | dummy.window = XtWindow (XtParent (widget)); | |
201 | dummy.time = CurrentTime; | |
202 | dummy.button = 0; | |
203 | XQueryPointer (dummy.display, dummy.window, &dummy.root, | |
204 | &dummy.subwindow, &dummy.x_root, &dummy.y_root, | |
205 | &dummy.x, &dummy.y, &dummy.state); | |
206 | ||
207 | pop_up_menu (mw, &dummy); | |
208 | } | |
209 | ||
210 | \f/* Destruction of instances */ | |
211 | void | |
345a94f9 RS |
212 | xlw_destroy_instance (instance) |
213 | widget_instance* instance; | |
07bf635f RS |
214 | { |
215 | if (instance->widget) | |
216 | XtDestroyWidget (instance->widget); | |
217 | } | |
218 |