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comparison lwlib/lwlib.h @ 428:3ecd8885ac67 r21-2-22

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Import from CVS: tag r21-2-22
author cvs
date Mon, 13 Aug 2007 11:28:15 +0200
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children 9d177e8d4150
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427:0a0253eac470 428:3ecd8885ac67
1 #ifndef LWLIB_H
2 #define LWLIB_H
3
4 #undef CONST
5
6 #include <X11/Intrinsic.h>
7
8 /* To eliminate use of `const' in the lwlib sources, define CONST_IS_LOSING. */
9 #ifdef CONST_IS_LOSING
10 # define CONST
11 #else
12 # define CONST const
13 #endif
14
15 #if defined (LWLIB_MENUBARS_LUCID) || defined (LWLIB_MENUBARS_MOTIF) || defined (LWLIB_MENUBARS_ATHENA)
16 #define NEED_MENUBARS
17 #endif
18 #if defined (LWLIB_SCROLLBARS_LUCID) || defined (LWLIB_SCROLLBARS_MOTIF) || defined (LWLIB_SCROLLBARS_ATHENA)
19 #define NEED_SCROLLBARS
20 #endif
21 #if defined (LWLIB_DIALOGS_LUCID) || defined (LWLIB_DIALOGS_MOTIF) || defined (LWLIB_DIALOGS_ATHENA)
22 #define NEED_DIALOGS
23 #endif
24
25 /*
26 ** Widget values depend on the Widget type:
27 **
28 ** widget: (name value key enabled data contents/selected)
29 **
30 ** label: ("name" "string" NULL NULL NULL NULL)
31 ** BUTTON: ("name" "string" "key" T/F data <default-button-p>)
32 ** CASCADE (button w/menu):
33 ** ("name" "string" "key" T/F data (label|button|button w/menu...))
34 ** INCREMENTAL (button w/menu construction callback):
35 ** ("name" "string" NULL T/F <opaque pointer>)
36 ** menubar: ("name" NULL NULL T/F data (button w/menu))
37 ** scrollbar:("name" NULL NULL T/F NULL NULL)
38 ** selectable thing:
39 ** ("name" "string" "key" T/F data T/F)
40 ** checkbox: selectable thing
41 ** radio: ("name" NULL NULL T/F data (selectable thing...))
42 ** strings: ("name" NULL NULL T/F data (selectable thing...))
43 ** TEXT: ("name" "string" <ign> T/F data)
44 **
45 ** Note that the above is EXTREMELY bogus. The "type" of the various entities
46 ** that a widget_value structure can represent is implicit in the contents of
47 ** half a dozen slots, instead of there simply being a type field. This
48 ** should all be rethunk. I've added a type field, but for now it's only used
49 ** by the new xlwmenu code.
50 */
51
52 typedef unsigned long LWLIB_ID;
53
54 typedef enum _change_type
55 {
56 NO_CHANGE = 0,
57 INVISIBLE_CHANGE = 1,
58 VISIBLE_CHANGE = 2,
59 STRUCTURAL_CHANGE = 3
60 } change_type;
61
62 typedef enum _widget_value_type
63 {
64 UNSPECIFIED_TYPE = 0,
65 BUTTON_TYPE = 1,
66 TOGGLE_TYPE = 2,
67 RADIO_TYPE = 3,
68 TEXT_TYPE = 4,
69 SEPARATOR_TYPE = 5,
70 CASCADE_TYPE = 6,
71 PUSHRIGHT_TYPE = 7,
72 INCREMENTAL_TYPE = 8
73 } widget_value_type;
74
75 typedef enum _scroll_action
76 {
77 SCROLLBAR_LINE_UP = 0,
78 SCROLLBAR_LINE_DOWN = 1,
79 SCROLLBAR_PAGE_UP = 2,
80 SCROLLBAR_PAGE_DOWN = 3,
81 SCROLLBAR_DRAG = 4,
82 SCROLLBAR_CHANGE = 5,
83 SCROLLBAR_TOP = 6,
84 SCROLLBAR_BOTTOM = 7
85 } scroll_action;
86
87 typedef struct _scroll_event
88 {
89 scroll_action action;
90 int slider_value;
91 Time time;
92 } scroll_event;
93
94 typedef struct _scrollbar_values
95 {
96 int line_increment;
97 int page_increment;
98
99 int minimum;
100 int maximum;
101
102 int slider_size;
103 int slider_position;
104
105 int scrollbar_width, scrollbar_height;
106 int scrollbar_x, scrollbar_y;
107 } scrollbar_values;
108
109 typedef struct _widget_value
110 {
111 /* This slot is only partially utilized right now. */
112 widget_value_type type;
113
114 /* name of widget */
115 char* name;
116 /* value (meaning BOGUSLY depend on widget type) */
117 char* value;
118 /* keyboard equivalent. no implications for XtTranslations */
119 char* key;
120 /* accelerator key. For XEmacs, this should be a Lisp_Object holding a
121 char or symbol suitable for passing to event_matches_key_specifier_p.
122 Outside of emacs, this can be anything: an X KeySym is a good idea.
123 lwlib provides support functions for keyboard traversal of menus. Actual
124 implementation of those accelerators is up to the application.
125 */
126 XtPointer accel;
127 /* true if enabled */
128 Boolean enabled;
129 /* true if selected */
130 Boolean selected;
131 /* true if was edited (maintained by get_value) */
132 Boolean edited;
133 /* true if has changed (maintained by lw library) */
134 change_type change;
135 /* Contents of the sub-widgets, also selected slot for checkbox */
136 struct _widget_value* contents;
137 /* data passed to callback */
138 XtPointer call_data;
139 /* next one in the list */
140 struct _widget_value* next;
141 /* slot for the toolkit dependent part. Always initialize to NULL. */
142 void* toolkit_data;
143 /* tell us if we should free the toolkit data slot when freeing the
144 widget_value itself. */
145 Boolean free_toolkit_data;
146
147 /* data defining a scrollbar; only valid if type == "scrollbar" */
148 scrollbar_values *scrollbar_data;
149
150 /* we resource the widget_value structures; this points to the next
151 one on the free list if this one has been deallocated. */
152 struct _widget_value *free_list;
153
154 /* some things are only possible at creation time. args are applied
155 to widgets at creation time. */
156 ArgList args;
157 int nargs;
158 Boolean free_args;
159 } widget_value;
160
161
162 typedef void (*lw_callback) (Widget w, LWLIB_ID id, XtPointer data);
163
164 /* menu stuff */
165 /* maybe this should go into a generic lwmenu.h */
166
167 extern int lw_menu_active;
168
169 #if defined (LWLIB_MENUBARS_LUCID)
170 #include "xlwmenu.h"
171 #define lw_set_menu xlw_set_menu
172 #define lw_push_menu xlw_push_menu
173 #define lw_pop_menu xlw_pop_menu
174 #define lw_set_item xlw_set_item
175 #define lw_map_menu xlw_map_menu
176 #define lw_display_menu xlw_display_menu
177 #define lw_kill_menus xlw_kill_menus
178 #define lw_get_entries xlw_get_entries
179 #define lw_menu_level xlw_menu_level
180 #else /* LWLIB_MENUBARS_LUCID */
181 /* do this for the other toolkits too */
182 #endif /* LWLIB_MENUBARS_LUCID */
183
184 #if defined (LWLIB_TABS_LUCID)
185 #include "xlwtabs.h"
186 #endif
187
188 void lw_register_widget (CONST char* type, CONST char* name, LWLIB_ID id,
189 widget_value* val, lw_callback pre_activate_cb,
190 lw_callback selection_cb,
191 lw_callback post_activate_cb);
192 Widget lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p);
193 Widget lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p);
194 Widget lw_create_widget (CONST char* type, CONST char* name, LWLIB_ID id,
195 widget_value* val, Widget parent, Boolean pop_up_p,
196 lw_callback pre_activate_cb,
197 lw_callback selection_cb,
198 lw_callback post_activate_cb);
199 LWLIB_ID lw_get_widget_id (Widget w);
200 int lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
201 void *closure),
202 void *closure);
203 void lw_modify_all_widgets (LWLIB_ID id, widget_value* val, Boolean deep_p);
204 void lw_destroy_widget (Widget w);
205 void lw_destroy_all_widgets (LWLIB_ID id);
206 void lw_destroy_everything (void);
207 void lw_destroy_all_pop_ups (void);
208 Widget lw_raise_all_pop_up_widgets (void);
209 widget_value* lw_get_all_values (LWLIB_ID id);
210 Boolean lw_get_some_values (LWLIB_ID id, widget_value* val);
211 void lw_pop_up_all_widgets (LWLIB_ID id);
212 void lw_pop_down_all_widgets (LWLIB_ID id);
213 void lw_add_value_args_to_args (widget_value* wv, ArgList addto, int* offset);
214
215 widget_value *malloc_widget_value (void);
216 void free_widget_value (widget_value *);
217 void free_widget_value_tree (widget_value *wv);
218 widget_value *replace_widget_value_tree (widget_value*, widget_value*);
219
220 void lw_popup_menu (Widget, XEvent *);
221
222 /* Toolkit independent way of focusing on a Widget at the Xt level. */
223 void lw_set_keyboard_focus (Widget parent, Widget w);
224
225 /* Silly Energize hack to invert the "sheet" button */
226 void lw_show_busy (Widget w, Boolean busy);
227
228 #endif /* LWLIB_H */