|
0
|
1 /* Generic GUI code. (menubars, scrollbars, toolbars, dialogs)
|
|
|
2 Copyright (C) 1995 Board of Trustees, University of Illinois.
|
|
|
3 Copyright (C) 1995, 1996 Ben Wing.
|
|
|
4 Copyright (C) 1995 Sun Microsystems, Inc.
|
|
259
|
5 Copyright (C) 1998 Free Software Foundation, Inc.
|
|
0
|
6
|
|
|
7 This file is part of XEmacs.
|
|
|
8
|
|
|
9 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
10 under the terms of the GNU General Public License as published by the
|
|
|
11 Free Software Foundation; either version 2, or (at your option) any
|
|
|
12 later version.
|
|
|
13
|
|
|
14 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
17 for more details.
|
|
|
18
|
|
|
19 You should have received a copy of the GNU General Public License
|
|
|
20 along with XEmacs; see the file COPYING. If not, write to
|
|
|
21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
22 Boston, MA 02111-1307, USA. */
|
|
|
23
|
|
|
24 /* Synched up with: Not in FSF. */
|
|
|
25
|
|
|
26 #include <config.h>
|
|
251
|
27 #include "lisp.h"
|
|
231
|
28 #include "gui.h"
|
|
286
|
29 #include "bytecode.h" /* for struct Lisp_Compiled_Function */
|
|
0
|
30
|
|
|
31 Lisp_Object Q_active, Q_suffix, Q_keys, Q_style, Q_selected;
|
|
|
32 Lisp_Object Q_filter, Q_config, Q_included;
|
|
175
|
33 Lisp_Object Q_accelerator;
|
|
0
|
34 Lisp_Object Qtoggle, Qradio;
|
|
|
35
|
|
231
|
36 #ifdef HAVE_POPUPS
|
|
|
37
|
|
|
38 /* count of menus/dboxes currently up */
|
|
|
39 int popup_up_p;
|
|
|
40
|
|
|
41 DEFUN ("popup-up-p", Fpopup_up_p, 0, 0, 0, /*
|
|
|
42 Return t if a popup menu or dialog box is up, nil otherwise.
|
|
|
43 See `popup-menu' and `popup-dialog-box'.
|
|
|
44 */
|
|
|
45 ())
|
|
|
46 {
|
|
|
47 return popup_up_p ? Qt : Qnil;
|
|
|
48 }
|
|
|
49
|
|
|
50 int
|
|
|
51 separator_string_p (CONST char *s)
|
|
|
52 {
|
|
|
53 CONST char *p;
|
|
|
54 char first;
|
|
|
55
|
|
|
56 if (!s || s[0] == '\0')
|
|
|
57 return 0;
|
|
|
58 first = s[0];
|
|
|
59 if (first != '-' && first != '=')
|
|
|
60 return 0;
|
|
272
|
61 for (p = s; *p == first; p++)
|
|
|
62 ;
|
|
231
|
63
|
|
272
|
64 return (*p == '!' || *p == ':' || *p == '\0');
|
|
231
|
65 }
|
|
|
66
|
|
286
|
67 /* Massage DATA to find the correct function and argument. Used by
|
|
|
68 popup_selection_callback() and the msw code. */
|
|
|
69 void
|
|
288
|
70 get_gui_callback (Lisp_Object data, Lisp_Object *fn, Lisp_Object *arg)
|
|
286
|
71 {
|
|
|
72 if (SYMBOLP (data)
|
|
|
73 || (COMPILED_FUNCTIONP (data)
|
|
|
74 && XCOMPILED_FUNCTION (data)->flags.interactivep)
|
|
|
75 || (EQ (XCAR (data), Qlambda)
|
|
|
76 && !NILP (Fassq (Qinteractive, Fcdr (Fcdr (data))))))
|
|
|
77 {
|
|
|
78 *fn = Qcall_interactively;
|
|
|
79 *arg = data;
|
|
|
80 }
|
|
|
81 else if (CONSP (data))
|
|
|
82 {
|
|
|
83 *fn = Qeval;
|
|
|
84 *arg = data;
|
|
|
85 }
|
|
|
86 else
|
|
|
87 {
|
|
|
88 *fn = Qeval;
|
|
|
89 *arg = list3 (Qsignal,
|
|
|
90 list2 (Qquote, Qerror),
|
|
|
91 list2 (Qquote, list2 (build_translated_string
|
|
|
92 ("illegal callback"),
|
|
|
93 data)));
|
|
|
94 }
|
|
|
95 }
|
|
|
96
|
|
272
|
97 /*
|
|
251
|
98 * Initialize the gui_item structure by setting all (GC-protected)
|
|
|
99 * fields to their default values. The defaults are t for :active and
|
|
|
100 * :included values, and nil for others.
|
|
|
101 */
|
|
|
102 void
|
|
|
103 gui_item_init (struct gui_item *pgui_item)
|
|
|
104 {
|
|
272
|
105 pgui_item->name = Qnil;
|
|
251
|
106 pgui_item->callback = Qnil;
|
|
272
|
107 pgui_item->suffix = Qnil;
|
|
|
108 pgui_item->active = Qt;
|
|
251
|
109 pgui_item->included = Qt;
|
|
288
|
110 pgui_item->config = Qnil;
|
|
272
|
111 pgui_item->filter = Qnil;
|
|
|
112 pgui_item->style = Qnil;
|
|
251
|
113 pgui_item->selected = Qnil;
|
|
272
|
114 pgui_item->keys = Qnil;
|
|
251
|
115 }
|
|
|
116
|
|
|
117 /*
|
|
|
118 * Add a value VAL associated with keyword KEY into PGUI_ITEM
|
|
|
119 * structure. If KEY is not a keyword, or is an unknown keyword, then
|
|
|
120 * error is signaled.
|
|
|
121 */
|
|
272
|
122 void
|
|
251
|
123 gui_item_add_keyval_pair (struct gui_item *pgui_item,
|
|
|
124 Lisp_Object key, Lisp_Object val)
|
|
|
125 {
|
|
|
126 if (!KEYWORDP (key))
|
|
272
|
127 signal_simple_error_2 ("Non-keyword in gui item", key, pgui_item->name);
|
|
251
|
128
|
|
272
|
129 if (EQ (key, Q_suffix)) pgui_item->suffix = val;
|
|
|
130 else if (EQ (key, Q_active)) pgui_item->active = val;
|
|
|
131 else if (EQ (key, Q_included)) pgui_item->included = val;
|
|
|
132 else if (EQ (key, Q_config)) pgui_item->config = val;
|
|
|
133 else if (EQ (key, Q_filter)) pgui_item->filter = val;
|
|
|
134 else if (EQ (key, Q_style)) pgui_item->style = val;
|
|
|
135 else if (EQ (key, Q_selected)) pgui_item->selected = val;
|
|
|
136 else if (EQ (key, Q_keys)) pgui_item->keys = val;
|
|
251
|
137 else
|
|
272
|
138 signal_simple_error_2 ("Unknown keyword in gui item", key, pgui_item->name);
|
|
251
|
139 }
|
|
|
140
|
|
|
141 /*
|
|
|
142 * ITEM is a lisp vector, describing a menu item or a button. The
|
|
|
143 * function extracts the description of the item into the PGUI_ITEM
|
|
|
144 * structure.
|
|
|
145 */
|
|
|
146 void
|
|
|
147 gui_parse_item_keywords (Lisp_Object item, struct gui_item *pgui_item)
|
|
|
148 {
|
|
|
149 int length, plist_p;
|
|
|
150 Lisp_Object *contents;
|
|
|
151
|
|
|
152 CHECK_VECTOR (item);
|
|
|
153 length = XVECTOR_LENGTH (item);
|
|
|
154 contents = XVECTOR_DATA (item);
|
|
|
155
|
|
259
|
156 if (length < 2)
|
|
|
157 signal_simple_error ("GUI item descriptors must be at least 2 elts long", item);
|
|
251
|
158
|
|
259
|
159 /* length 2: [ "name" callback ]
|
|
|
160 length 3: [ "name" callback active-p ]
|
|
251
|
161 length 4: [ "name" callback active-p suffix ]
|
|
|
162 or [ "name" callback keyword value ]
|
|
|
163 length 5+: [ "name" callback [ keyword value ]+ ]
|
|
|
164 */
|
|
259
|
165 plist_p = (length >= 5 || (length > 2 && KEYWORDP (contents [2])));
|
|
251
|
166
|
|
|
167 pgui_item->name = contents [0];
|
|
|
168 pgui_item->callback = contents [1];
|
|
|
169
|
|
259
|
170 if (!plist_p && length > 2)
|
|
251
|
171 /* the old way */
|
|
|
172 {
|
|
|
173 pgui_item->active = contents [2];
|
|
|
174 if (length == 4)
|
|
|
175 pgui_item->suffix = contents [3];
|
|
|
176 }
|
|
|
177 else
|
|
|
178 /* the new way */
|
|
|
179 {
|
|
|
180 int i;
|
|
|
181 if (length & 1)
|
|
|
182 signal_simple_error (
|
|
|
183 "GUI item descriptor has an odd number of keywords and values",
|
|
|
184 item);
|
|
|
185
|
|
|
186 for (i = 2; i < length;)
|
|
|
187 {
|
|
|
188 Lisp_Object key = contents [i++];
|
|
|
189 Lisp_Object val = contents [i++];
|
|
|
190 gui_item_add_keyval_pair (pgui_item, key, val);
|
|
|
191 }
|
|
272
|
192 }
|
|
251
|
193 }
|
|
|
194
|
|
|
195 /*
|
|
|
196 * Decide whether a GUI item is active by evaluating its :active form
|
|
|
197 * if any
|
|
|
198 */
|
|
|
199 int
|
|
|
200 gui_item_active_p (CONST struct gui_item *pgui_item)
|
|
|
201 {
|
|
|
202 /* This function can call lisp */
|
|
272
|
203
|
|
251
|
204 /* Shortcut to avoid evaluating Qt each time */
|
|
|
205 return (EQ (pgui_item->active, Qt)
|
|
|
206 || !NILP (Feval (pgui_item->active)));
|
|
|
207 }
|
|
|
208
|
|
|
209 /*
|
|
|
210 * Decide whether a GUI item is included by evaluating its :included
|
|
|
211 * form if given, and testing its :config form against supplied CONFLIST
|
|
|
212 * configuration variable
|
|
|
213 */
|
|
|
214 int
|
|
|
215 gui_item_included_p (CONST struct gui_item *pgui_item, Lisp_Object conflist)
|
|
|
216 {
|
|
|
217 /* This function can call lisp */
|
|
|
218
|
|
|
219 /* Evaluate :included first. Shortcut to avoid evaluating Qt each time */
|
|
|
220 if (!EQ (pgui_item->included, Qt)
|
|
|
221 && NILP (Feval (pgui_item->included)))
|
|
|
222 return 0;
|
|
|
223
|
|
|
224 /* Do :config if conflist is given */
|
|
|
225 if (!NILP (conflist) && !NILP (pgui_item->config)
|
|
|
226 && NILP (Fmemq (pgui_item->config, conflist)))
|
|
|
227 return 0;
|
|
|
228
|
|
|
229 return 1;
|
|
|
230 }
|
|
|
231
|
|
|
232 static DOESNT_RETURN
|
|
|
233 signal_too_long_error (Lisp_Object name)
|
|
|
234 {
|
|
272
|
235 signal_simple_error ("GUI item produces too long displayable string", name);
|
|
251
|
236 }
|
|
|
237
|
|
|
238 /*
|
|
272
|
239 * Format "left flush" display portion of an item into BUF, guarded by
|
|
|
240 * maximum buffer size BUF_LEN. BUF_LEN does not count for terminating
|
|
251
|
241 * null character, so actual maximum size of buffer consumed is
|
|
|
242 * BUF_LEN + 1 bytes. If buffer is not big enough, then error is
|
|
|
243 * signaled.
|
|
|
244 * Return value is the offset to the terminating null character into the
|
|
|
245 * buffer.
|
|
|
246 */
|
|
|
247 unsigned int
|
|
|
248 gui_item_display_flush_left (CONST struct gui_item *pgui_item,
|
|
272
|
249 char* buf, Bytecount buf_len)
|
|
251
|
250 {
|
|
272
|
251 char *p = buf;
|
|
|
252 Bytecount len;
|
|
251
|
253
|
|
|
254 /* Copy item name first */
|
|
|
255 CHECK_STRING (pgui_item->name);
|
|
272
|
256 len = XSTRING_LENGTH (pgui_item->name);
|
|
|
257 if (len > buf_len)
|
|
251
|
258 signal_too_long_error (pgui_item->name);
|
|
272
|
259 memcpy (p, XSTRING_DATA (pgui_item->name), len);
|
|
|
260 p += len;
|
|
251
|
261
|
|
259
|
262 /* Add space and suffix, if there is a suffix.
|
|
272
|
263 * If suffix is not string evaluate it */
|
|
251
|
264 if (!NILP (pgui_item->suffix))
|
|
|
265 {
|
|
272
|
266 Lisp_Object suffix = pgui_item->suffix;
|
|
259
|
267 /* Shortcut to avoid evaluating suffix each time */
|
|
272
|
268 if (!STRINGP (suffix))
|
|
259
|
269 {
|
|
272
|
270 suffix = Feval (suffix);
|
|
|
271 CHECK_STRING (suffix);
|
|
259
|
272 }
|
|
272
|
273
|
|
|
274 len = XSTRING_LENGTH (suffix);
|
|
|
275 if (p + len + 1 > buf + buf_len)
|
|
251
|
276 signal_too_long_error (pgui_item->name);
|
|
272
|
277 *(p++) = ' ';
|
|
|
278 memcpy (p, XSTRING_DATA (suffix), len);
|
|
|
279 p += len;
|
|
251
|
280 }
|
|
272
|
281 *p = '\0';
|
|
|
282 return p - buf;
|
|
251
|
283 }
|
|
|
284
|
|
|
285 /*
|
|
272
|
286 * Format "right flush" display portion of an item into BUF, guarded by
|
|
|
287 * maximum buffer size BUF_LEN. BUF_LEN does not count for terminating
|
|
251
|
288 * null character, so actual maximum size of buffer consumed is
|
|
|
289 * BUF_LEN + 1 bytes. If buffer is not big enough, then error is
|
|
|
290 * signaled.
|
|
|
291 * Return value is the offset to the terminating null character into the
|
|
|
292 * buffer.
|
|
|
293 */
|
|
|
294 unsigned int
|
|
|
295 gui_item_display_flush_right (CONST struct gui_item *pgui_item,
|
|
272
|
296 char* buf, Bytecount buf_len)
|
|
251
|
297 {
|
|
|
298 *buf = 0;
|
|
|
299
|
|
|
300 /* Have keys? */
|
|
|
301 if (!menubar_show_keybindings)
|
|
|
302 return 0;
|
|
|
303
|
|
|
304 /* Try :keys first */
|
|
|
305 if (!NILP (pgui_item->keys))
|
|
|
306 {
|
|
|
307 CHECK_STRING (pgui_item->keys);
|
|
|
308 if (XSTRING_LENGTH (pgui_item->keys) > buf_len)
|
|
|
309 signal_too_long_error (pgui_item->name);
|
|
272
|
310 strcpy (buf, (CONST char *) XSTRING_DATA (pgui_item->keys));
|
|
251
|
311 return XSTRING_LENGTH (pgui_item->keys);
|
|
|
312 }
|
|
|
313
|
|
|
314 /* See if we can derive keys out of callback symbol */
|
|
|
315 if (SYMBOLP (pgui_item->callback))
|
|
|
316 {
|
|
|
317 char buf2 [1024];
|
|
272
|
318 Bytecount len;
|
|
251
|
319
|
|
|
320 where_is_to_char (pgui_item->callback, buf2);
|
|
|
321 len = strlen (buf2);
|
|
|
322 if (len > buf_len)
|
|
|
323 signal_too_long_error (pgui_item->name);
|
|
|
324 strcpy (buf, buf2);
|
|
|
325 return len;
|
|
|
326 }
|
|
|
327
|
|
|
328 /* No keys - no right flush display */
|
|
|
329 return 0;
|
|
|
330 }
|
|
|
331
|
|
231
|
332 #endif /* HAVE_POPUPS */
|
|
|
333
|
|
0
|
334 void
|
|
|
335 syms_of_gui (void)
|
|
|
336 {
|
|
|
337 defkeyword (&Q_active, ":active");
|
|
|
338 defkeyword (&Q_suffix, ":suffix");
|
|
|
339 defkeyword (&Q_keys, ":keys");
|
|
|
340 defkeyword (&Q_style, ":style");
|
|
|
341 defkeyword (&Q_selected, ":selected");
|
|
|
342 defkeyword (&Q_filter, ":filter");
|
|
|
343 defkeyword (&Q_config, ":config");
|
|
|
344 defkeyword (&Q_included, ":included");
|
|
175
|
345 defkeyword (&Q_accelerator, ":accelerator");
|
|
0
|
346
|
|
|
347 defsymbol (&Qtoggle, "toggle");
|
|
|
348 defsymbol (&Qradio, "radio");
|
|
231
|
349
|
|
|
350 #ifdef HAVE_POPUPS
|
|
|
351 DEFSUBR (Fpopup_up_p);
|
|
|
352 #endif
|
|
0
|
353 }
|
|
|
354
|
|
|
355 void
|
|
|
356 vars_of_gui (void)
|
|
|
357 {
|
|
|
358 }
|
