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comparison src/objects-tty.c @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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1 /* TTY-specific Lisp objects.
2 Copyright (C) 1995 Board of Trustees, University of Illinois.
3 Copyright (C) 1995, 1996 Ben Wing.
4
5 This file is part of XEmacs.
6
7 XEmacs is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 2, or (at your option) any
10 later version.
11
12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with XEmacs; 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 /* Synched up with: Not in FSF. */
23
24 #include <config.h>
25 #include "lisp.h"
26
27 #include "console-tty.h"
28 #include "insdel.h"
29 #include "objects-tty.h"
30
31 /* An alist mapping from color names to a cons of (FG-STRING, BG-STRING). */
32 Lisp_Object Vtty_color_alist;
33 #if 0 /* This stuff doesn't quite work yet */
34 Lisp_Object Vtty_dynamic_color_fg;
35 Lisp_Object Vtty_dynamic_color_bg;
36 #endif
37
38 DEFUN ("register-tty-color", Fregister_tty_color, Sregister_tty_color, 3, 3,
39 0 /*
40 Register COLOR as a recognized TTY color.
41 COLOR should be a string.
42 Strings FG-STRING and BG-STRING should specify the escape sequences to
43 set the foreground and background to the given color, respectively.
44 */ )
45 (color, fg_string, bg_string)
46 Lisp_Object color, fg_string, bg_string;
47 {
48 CHECK_STRING (color);
49 CHECK_STRING (fg_string);
50 CHECK_STRING (bg_string);
51
52 color = Fintern (color, Qnil);
53 Vtty_color_alist = Fremassq (color, Vtty_color_alist);
54 Vtty_color_alist = Fcons (Fcons (color, Fcons (fg_string, bg_string)),
55 Vtty_color_alist);
56
57 return Qnil;
58 }
59
60 DEFUN ("unregister-tty-color", Funregister_tty_color, Sunregister_tty_color,
61 1, 1, 0 /*
62 Unregister COLOR as a recognized TTY color.
63 */ )
64 (color)
65 Lisp_Object color;
66 {
67 CHECK_STRING (color);
68
69 color = Fintern (color, Qnil);
70 Vtty_color_alist = Fremassq (color, Vtty_color_alist);
71 return Qnil;
72 }
73
74 DEFUN ("find-tty-color", Ffind_tty_color, Sfind_tty_color, 1, 1, 0 /*
75 Look up COLOR in the list of registered TTY colors.
76 If it is found, return a list (FG-STRING BG-STRING) of the escape
77 sequences used to set the foreground and background to the color, respectively.
78 If it is not found, return nil.
79 */ )
80 (color)
81 Lisp_Object color;
82 {
83 Lisp_Object result;
84
85 CHECK_STRING (color);
86
87 result = Fassq (Fintern (color, Qnil), Vtty_color_alist);
88 if (!NILP (result))
89 return list2 (Fcar (Fcdr (result)), Fcdr (Fcdr (result)));
90 else
91 return Qnil;
92 }
93
94 DEFUN ("tty-color-list", Ftty_color_list, Stty_color_list, 0, 0, 0 /*
95 Return a list of the registered TTY colors.
96 */ )
97 ()
98 {
99 Lisp_Object result = Qnil;
100 Lisp_Object rest;
101
102 LIST_LOOP (rest, Vtty_color_alist)
103 {
104 result = Fcons (Fsymbol_name (XCAR (XCAR (rest))), result);
105 }
106
107 return Fnreverse (result);
108 }
109
110 #if 0
111
112 /* This approach is too simplistic. The problem is that the
113 dynamic color settings apply to *all* text in the default color,
114 not just the text output after the escape sequence has been given. */
115
116 DEFUN ("set-tty-dynamic-color-specs", Fset_tty_dynamic_color_specs,
117 Sset_tty_dynamic_color_specs, 2, 2, 0 /*
118 Set the dynamic color specifications for TTY's.
119 FG and BG should be either nil or vaguely printf-like strings,
120 where each occurrence of %s is replaced with the color name and each
121 occurrence of %% is replaced with a single % character.
122 */ )
123 (fg, bg)
124 Lisp_Object fg, bg;
125 {
126 if (!NILP (fg))
127 CHECK_STRING (fg);
128 if (!NILP (bg))
129 CHECK_STRING (bg);
130
131 Vtty_dynamic_color_fg = fg;
132 Vtty_dynamic_color_bg = bg;
133
134 return Qnil;
135 }
136
137 DEFUN ("tty-dynamic-color-specs", Ftty_dynamic_color_specs,
138 Stty_dynamic_color_specs, 0, 0, 0 /*
139 Return the dynamic color specifications for TTY's as a list of (FG BG).
140 See `set-tty-dynamic-color-specs'.
141 */ )
142 ()
143 {
144 return list2 (Vtty_dynamic_color_fg, Vtty_dynamic_color_bg);
145 }
146
147 #endif /* 0 */
148
149 static int
150 tty_initialize_color_instance (struct Lisp_Color_Instance *c, Lisp_Object name,
151 Lisp_Object device, Error_behavior errb)
152 {
153 Lisp_Object result;
154
155 name = Fintern (name, Qnil);
156 result = assq_no_quit (name, Vtty_color_alist);
157
158 if (NILP (result))
159 {
160 #if 0
161 if (!STRINGP (Vtty_dynamic_color_fg)
162 && !STRINGP (Vtty_dynamic_color_bg))
163 #endif
164 return 0;
165 }
166
167 /* Don't allocate the data until we're sure that we will succeed. */
168 c->data = malloc_type (struct tty_color_instance_data);
169 COLOR_INSTANCE_TTY_SYMBOL (c) = name;
170
171 return 1;
172 }
173
174 static void
175 tty_mark_color_instance (struct Lisp_Color_Instance *c,
176 void (*markobj) (Lisp_Object))
177 {
178 ((markobj) (COLOR_INSTANCE_TTY_SYMBOL (c)));
179 }
180
181 static void
182 tty_print_color_instance (struct Lisp_Color_Instance *c,
183 Lisp_Object printcharfun,
184 int escapeflag)
185 {
186 }
187
188 static void
189 tty_finalize_color_instance (struct Lisp_Color_Instance *c)
190 {
191 if (c->data)
192 xfree (c->data);
193 }
194
195 static int
196 tty_color_instance_equal (struct Lisp_Color_Instance *c1,
197 struct Lisp_Color_Instance *c2,
198 int depth)
199 {
200 return (EQ (COLOR_INSTANCE_TTY_SYMBOL (c1),
201 COLOR_INSTANCE_TTY_SYMBOL (c2)));
202 }
203
204 static unsigned long
205 tty_color_instance_hash (struct Lisp_Color_Instance *c, int depth)
206 {
207 return LISP_HASH (COLOR_INSTANCE_TTY_SYMBOL (c));
208 }
209
210 static int
211 tty_valid_color_name_p (struct device *d, Lisp_Object color)
212 {
213 return (!NILP (assoc_no_quit (Fintern (color, Qnil), Vtty_color_alist)));
214 #if 0
215 || STRINGP (Vtty_dynamic_color_fg)
216 || STRINGP (Vtty_dynamic_color_bg)
217 #endif
218 }
219
220
221 static int
222 tty_initialize_font_instance (struct Lisp_Font_Instance *f, Lisp_Object name,
223 Lisp_Object device, Error_behavior errb)
224 {
225 Bufbyte *str = string_data (XSTRING (name));
226 Lisp_Object charset = Qnil;
227
228 if (strncmp ((CONST char *) str, "normal", 6))
229 return 0;
230 str += 6;
231 if (*str)
232 {
233 return 0;
234 }
235
236 /* Don't allocate the data until we're sure that we will succeed. */
237 f->data = malloc_type (struct tty_font_instance_data);
238 FONT_INSTANCE_TTY_CHARSET (f) = charset;
239 f->width = 1;
240
241 f->proportional_p = 0;
242 f->ascent = f->height = 1;
243 f->descent = 0;
244
245 return 1;
246 }
247
248 static void
249 tty_mark_font_instance (struct Lisp_Font_Instance *f,
250 void (*markobj) (Lisp_Object))
251 {
252 ((markobj) (FONT_INSTANCE_TTY_CHARSET (f)));
253 }
254
255 static void
256 tty_print_font_instance (struct Lisp_Font_Instance *f,
257 Lisp_Object printcharfun,
258 int escapeflag)
259 {
260 }
261
262 static void
263 tty_finalize_font_instance (struct Lisp_Font_Instance *f)
264 {
265 if (f->data)
266 xfree (f->data);
267 }
268
269 static Lisp_Object
270 tty_list_fonts (Lisp_Object pattern, Lisp_Object device)
271 {
272 return list1 (build_string ("normal"));
273 }
274
275
276 /************************************************************************/
277 /* initialization */
278 /************************************************************************/
279
280 void
281 syms_of_objects_tty (void)
282 {
283 defsubr (&Sregister_tty_color);
284 defsubr (&Sunregister_tty_color);
285 defsubr (&Sfind_tty_color);
286 defsubr (&Stty_color_list);
287 #if 0
288 defsubr (&Sset_tty_dynamic_color_specs);
289 defsubr (&Stty_dynamic_color_specs);
290 #endif
291 }
292
293 void
294 console_type_create_objects_tty (void)
295 {
296 /* object methods */
297 CONSOLE_HAS_METHOD (tty, initialize_color_instance);
298 CONSOLE_HAS_METHOD (tty, mark_color_instance);
299 CONSOLE_HAS_METHOD (tty, print_color_instance);
300 CONSOLE_HAS_METHOD (tty, finalize_color_instance);
301 CONSOLE_HAS_METHOD (tty, color_instance_equal);
302 CONSOLE_HAS_METHOD (tty, color_instance_hash);
303 CONSOLE_HAS_METHOD (tty, valid_color_name_p);
304
305 CONSOLE_HAS_METHOD (tty, initialize_font_instance);
306 CONSOLE_HAS_METHOD (tty, mark_font_instance);
307 CONSOLE_HAS_METHOD (tty, print_font_instance);
308 CONSOLE_HAS_METHOD (tty, finalize_font_instance);
309 CONSOLE_HAS_METHOD (tty, list_fonts);
310 }
311
312 void
313 vars_of_objects_tty (void)
314 {
315 staticpro (&Vtty_color_alist);
316 Vtty_color_alist = Qnil;
317
318 #if 0
319 staticpro (&Vtty_dynamic_color_fg);
320 Vtty_dynamic_color_fg = Qnil;
321
322 staticpro (&Vtty_dynamic_color_bg);
323 Vtty_dynamic_color_bg = Qnil;
324 #endif
325 }