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1 | /* Definitions and headers for GTK widgets. |
2 | Copyright (C) 2003 | |
3 | Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #ifndef GTKUTIL_H | |
23 | #define GTKUTIL_H | |
24 | ||
25 | ||
26 | #ifdef USE_GTK | |
27 | ||
28 | #include <gtk/gtk.h> | |
29 | #include "frame.h" | |
30 | ||
31 | /* Minimum and maximum values used for GTK scroll bars */ | |
32 | ||
33 | #define XG_SB_MIN 0 | |
34 | #define XG_SB_MAX 10000000 | |
35 | ||
36 | /* Key for data that is valid for menus in a frame */ | |
37 | #define XG_FRAME_DATA "emacs_frame" | |
38 | ||
39 | /* Key for data that is the last scrollbar value */ | |
40 | #define XG_LAST_SB_DATA "emacs_last_sb_value" | |
41 | ||
42 | /* Key for data that menu items hold. */ | |
43 | #define XG_ITEM_DATA "emacs_menuitem" | |
44 | ||
45 | ||
46 | /* Button types in menus. */ | |
47 | enum button_type | |
48 | { | |
49 | BUTTON_TYPE_NONE, | |
50 | BUTTON_TYPE_TOGGLE, | |
51 | BUTTON_TYPE_RADIO | |
52 | }; | |
53 | ||
54 | /* This is a list node in a generic list implementation. */ | |
55 | typedef struct xg_list_node_ | |
56 | { | |
57 | struct xg_list_node_ *prev; | |
58 | struct xg_list_node_ *next; | |
59 | } xg_list_node; | |
60 | ||
61 | /* This structure is the callback data that is shared for menu items. | |
62 | We need to keep it separate from the frame structure due to | |
63 | detachable menus. The data in the frame structure is only valid while | |
64 | the menu is popped up. This structure is kept around as long as | |
65 | the menu is. */ | |
66 | typedef struct xg_menu_cb_data_ | |
67 | { | |
68 | xg_list_node ptrs; | |
177c0ea7 | 69 | |
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70 | FRAME_PTR f; |
71 | Lisp_Object menu_bar_vector; | |
72 | int menu_bar_items_used; | |
73 | GCallback highlight_cb; | |
74 | int ref_count; | |
75 | } xg_menu_cb_data; | |
76 | ||
77 | /* This structure holds callback information for each individual menu item. */ | |
78 | typedef struct xg_menu_item_cb_data_ | |
79 | { | |
80 | xg_list_node ptrs; | |
81 | ||
82 | gulong highlight_id; | |
83 | gulong unhighlight_id; | |
84 | gulong select_id; | |
85 | Lisp_Object help; | |
86 | gpointer call_data; | |
87 | xg_menu_cb_data *cl_data; | |
177c0ea7 | 88 | |
f392e843 JD |
89 | } xg_menu_item_cb_data; |
90 | ||
91 | ||
92 | /* Used to specify menus and dialogs. | |
93 | This is an adaption from lwlib for Gtk so we can use more of the same | |
94 | code as lwlib in xmenu.c. */ | |
95 | typedef struct _widget_value | |
96 | { | |
97 | /* name of widget */ | |
98 | char *name; | |
99 | /* value (meaning depend on widget type) */ | |
100 | char *value; | |
177c0ea7 | 101 | /* keyboard equivalent. no implications for XtTranslations */ |
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102 | char *key; |
103 | /* Help string or nil if none. | |
104 | GC finds this string through the frame's menu_bar_vector | |
105 | or through menu_items. */ | |
106 | Lisp_Object help; | |
107 | /* true if enabled */ | |
108 | gint enabled; | |
109 | /* true if selected */ | |
110 | gint selected; | |
111 | /* The type of a button. */ | |
112 | enum button_type button_type; | |
113 | /* Contents of the sub-widgets, also selected slot for checkbox */ | |
114 | struct _widget_value *contents; | |
115 | /* data passed to callback */ | |
116 | gpointer call_data; | |
117 | /* next one in the list */ | |
118 | struct _widget_value *next; | |
119 | ||
120 | /* we resource the widget_value structures; this points to the next | |
121 | one on the free list if this one has been deallocated. | |
122 | */ | |
123 | struct _widget_value *free_list; | |
124 | } widget_value; | |
125 | ||
1fcfb866 | 126 | extern widget_value *malloc_widget_value P_ ((void)); |
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127 | extern void free_widget_value P_ ((widget_value *)); |
128 | ||
129 | extern char *xg_get_file_name P_ ((FRAME_PTR f, | |
130 | char *prompt, | |
131 | char *default_filename, | |
132 | int mustmatch_p)); | |
133 | ||
134 | extern GtkWidget *xg_create_widget P_ ((char *type, | |
135 | char *name, | |
136 | FRAME_PTR f, | |
137 | widget_value *val, | |
138 | GCallback select_cb, | |
139 | GCallback deactivate_cb, | |
140 | GCallback hightlight_cb)); | |
141 | ||
142 | extern void xg_modify_menubar_widgets P_ ((GtkWidget *menubar, | |
143 | FRAME_PTR f, | |
144 | widget_value *val, | |
145 | int deep_p, | |
146 | GCallback select_cb, | |
147 | GCallback deactivate_cb, | |
148 | GCallback hightlight_cb)); | |
149 | ||
150 | extern int xg_update_frame_menubar P_ ((FRAME_PTR f)); | |
151 | ||
152 | extern void xg_keep_popup P_ ((GtkWidget *menu, GtkWidget *submenu)); | |
153 | ||
154 | extern void xg_create_scroll_bar P_ ((FRAME_PTR f, | |
155 | struct scroll_bar *bar, | |
156 | GCallback scroll_callback, | |
157 | char *scroll_bar_name)); | |
158 | extern void xg_show_scroll_bar P_ ((int scrollbar_id)); | |
159 | extern void xg_remove_scroll_bar P_ ((FRAME_PTR f, int scrollbar_id)); | |
160 | ||
161 | extern void xg_update_scrollbar_pos P_ ((FRAME_PTR f, | |
162 | int scrollbar_id, | |
163 | int top, | |
164 | int left, | |
165 | int width, | |
166 | int height)); | |
167 | ||
168 | extern void xg_set_toolkit_scroll_bar_thumb P_ ((struct scroll_bar *bar, | |
169 | int portion, | |
170 | int position, | |
171 | int whole)); | |
172 | ||
173 | ||
174 | extern void update_frame_tool_bar P_ ((FRAME_PTR f)); | |
175 | extern void free_frame_tool_bar P_ ((FRAME_PTR f)); | |
176 | ||
177 | extern void xg_resize_widgets P_ ((FRAME_PTR f, | |
178 | int pixelwidth, | |
179 | int pixelheight)); | |
180 | extern void xg_frame_set_char_size P_ ((FRAME_PTR f, int cols, int rows)); | |
181 | extern GtkWidget * xg_win_to_widget P_ ((Window)); | |
182 | extern int xg_create_frame_widgets P_ ((FRAME_PTR f)); | |
183 | extern void x_wm_set_size_hint P_ ((FRAME_PTR f, | |
184 | long flags, | |
185 | int user_position)); | |
186 | extern void xg_set_background_color P_ ((FRAME_PTR f, unsigned long bg)); | |
187 | ||
188 | /* Mark all callback data that are Lisp_object:s during GC. */ | |
1fcfb866 | 189 | extern void xg_mark_data P_ ((void)); |
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190 | |
191 | /* Initialize GTK specific parts. */ | |
1fcfb866 | 192 | extern void xg_initialize P_ ((void)); |
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193 | |
194 | /* Setting scrollbar values invokes the callback. Use this variable | |
195 | to indicate that the callback should do nothing. */ | |
196 | extern int xg_ignore_gtk_scrollbar; | |
197 | ||
198 | /* After we send a scroll bar event, x_set_toolkit_scroll_bar_thumb will | |
199 | be called. For some reason that needs to be debugged, it gets called | |
200 | with bad values. Thus, we set this variable to ignore those calls. */ | |
201 | extern int xg_ignore_next_thumb; | |
202 | ||
203 | /* If a detach of a menu is done, this is the menu widget that got | |
204 | detached. Must be set to NULL before popping up popup menus. | |
205 | Used with xg_keep_popup to delay deleting popup menus when they | |
206 | have been detached. */ | |
207 | extern GtkWidget *xg_did_tearoff; | |
208 | ||
209 | #endif /* USE_GTK */ | |
210 | #endif /* GTKUTIL_H */ |