1 |
/*--------------------------------*-C-*---------------------------------*; |
2 |
* File: defaultfont.C |
3 |
*----------------------------------------------------------------------* |
4 |
* Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com> |
5 |
* - original version. |
6 |
* |
7 |
* This program 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 of the License, or |
10 |
* (at your option) any later version. |
11 |
* |
12 |
* This program 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 this program; if not, write to the Free Software |
19 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 |
*---------------------------------------------------------------------*/ |
21 |
|
22 |
#include "../config.h" |
23 |
#include "rxvt.h" |
24 |
#include "defaultfont.h" |
25 |
|
26 |
#include <cstdlib> |
27 |
|
28 |
#define DISPLAY r->display->display |
29 |
#define GC r->TermWin.gc |
30 |
|
31 |
const struct rxvt_fallback_font { |
32 |
codeset cs; |
33 |
const char *name; |
34 |
} fallback_fonts[] = { |
35 |
{ CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" }, |
36 |
{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" }, |
37 |
{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-fcd8859-15" }, |
38 |
|
39 |
#if ENCODING_EU |
40 |
// cyrillic |
41 |
{ CS_KOI8_R, "-*-*-*-r-*--*-*-*-*-c-*-koi8-r" }, |
42 |
{ CS_KOI8_U, "-*-*-*-r-*--*-*-*-*-c-*-koi8-u" }, |
43 |
|
44 |
{ CS_ISO8859_2, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-2" }, |
45 |
{ CS_ISO8859_3, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-3" }, |
46 |
{ CS_ISO8859_4, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-4" }, |
47 |
{ CS_ISO8859_5, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-5" }, |
48 |
{ CS_ISO8859_6, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-6" }, |
49 |
{ CS_ISO8859_7, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-7" }, |
50 |
{ CS_ISO8859_8, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-8" }, |
51 |
{ CS_ISO8859_9, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-9" }, |
52 |
{ CS_ISO8859_10, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-10" }, |
53 |
{ CS_ISO8859_11, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-11" }, |
54 |
{ CS_ISO8859_13, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-13" }, |
55 |
{ CS_ISO8859_14, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-14" }, |
56 |
{ CS_ISO8859_16, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-16" }, |
57 |
#endif |
58 |
|
59 |
// japanese |
60 |
#if ENCODING_JP || ENCODING_JP_EXT |
61 |
# if XFT |
62 |
// prefer xft for complex scripts |
63 |
{ CS_UNICODE, "xft:Kochi Gothic:antialias=false" }, |
64 |
# endif |
65 |
{ CS_JIS0201_1976_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
66 |
{ CS_JIS0208_1983_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
67 |
{ CS_JIS0212_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0212*-0" }, |
68 |
#endif |
69 |
|
70 |
#if ENCODING_CN || ENCODING_CN_EXT |
71 |
# if XFT |
72 |
{ CS_BIG5_EXT, "xft:AR PL Mingti2L Big5" }, |
73 |
{ CS_BIG5_EXT, "xft:AR PL KaitiM Big5" }, |
74 |
{ CS_GB2312_1980_0, "xft:AR PL KaitiM GB" }, |
75 |
{ CS_GB2312_1980_0, "xft:AR PL SungtiL GB" }, |
76 |
# endif |
77 |
{ CS_BIG5, "-*-*-*-*-*-*-*-*-*-*-c-*-big5-0" }, |
78 |
{ CS_BIG5_PLUS, "-*-*-*-*-*-*-*-*-*-*-c-*-big5p-0" }, |
79 |
{ CS_BIG5_EXT, "-*-*-*-*-*-*-*-*-*-*-c-*-big5.eten-0" }, |
80 |
{ CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-gb2312*-0" }, |
81 |
{ CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-1" }, |
82 |
{ CS_CNS11643_1992_2, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-2" }, |
83 |
{ CS_CNS11643_1992_3, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-3" }, |
84 |
{ CS_CNS11643_1992_4, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-4" }, |
85 |
{ CS_CNS11643_1992_5, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-5" }, |
86 |
{ CS_CNS11643_1992_6, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-6" }, |
87 |
{ CS_CNS11643_1992_7, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-7" }, |
88 |
{ CS_CNS11643_1992_F, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-f" }, |
89 |
#endif |
90 |
|
91 |
#if XFT |
92 |
{ CS_UNICODE, "xft:Andale Mono" }, |
93 |
{ CS_UNICODE, "xft:Arial Unicode MS" }, |
94 |
#endif |
95 |
{ CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" }, |
96 |
{ CS_UNICODE, "xft:FreeMono" }, |
97 |
{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, |
98 |
{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" }, |
99 |
{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
100 |
|
101 |
#if UNICODE_3 && XFT |
102 |
{ CS_UNICODE, "xft:Code2001" }, // contains many plane-1 characters |
103 |
#endif |
104 |
|
105 |
{ CS_UNKNOWN, 0 } |
106 |
}; |
107 |
|
108 |
///////////////////////////////////////////////////////////////////////////// |
109 |
|
110 |
#if XFT |
111 |
rxvt_drawable::~rxvt_drawable () |
112 |
{ |
113 |
if (xftdrawable) |
114 |
XftDrawDestroy (xftdrawable); |
115 |
} |
116 |
|
117 |
rxvt_drawable::operator XftDraw *() |
118 |
{ |
119 |
if (!xftdrawable) |
120 |
xftdrawable = XftDrawCreate (display->display, drawable, display->visual, display->cmap); |
121 |
|
122 |
return xftdrawable; |
123 |
} |
124 |
#endif |
125 |
|
126 |
///////////////////////////////////////////////////////////////////////////// |
127 |
|
128 |
static void *enc_buf; |
129 |
static uint32_t enc_len; |
130 |
|
131 |
static inline void * |
132 |
get_enc_buf (uint32_t len) |
133 |
{ |
134 |
if (len > enc_len) |
135 |
{ |
136 |
free (enc_buf); |
137 |
enc_buf = malloc (len); |
138 |
} |
139 |
|
140 |
return enc_buf; |
141 |
} |
142 |
|
143 |
static const char * |
144 |
enc_char (const text_t *text, uint32_t len, codeset cs, bool &zero) |
145 |
{ |
146 |
uint8_t *buf = (uint8_t *)get_enc_buf (len); |
147 |
|
148 |
while (len--) |
149 |
{ |
150 |
uint32_t c = FROM_UNICODE (cs, *text++); |
151 |
|
152 |
if (c == NOCHAR) |
153 |
{ |
154 |
c = 0; |
155 |
zero = true; |
156 |
} |
157 |
|
158 |
*buf++ = c; |
159 |
} |
160 |
|
161 |
return (const char *)enc_buf; |
162 |
} |
163 |
|
164 |
static const XChar2b * |
165 |
enc_xchar2b (const text_t *text, uint32_t len, codeset cs, bool &zero) |
166 |
{ |
167 |
XChar2b *buf = (XChar2b *)get_enc_buf (len * sizeof (XChar2b)); |
168 |
|
169 |
while (len--) |
170 |
{ |
171 |
uint32_t c = FROM_UNICODE (cs, *text++); |
172 |
|
173 |
if (c == NOCHAR) |
174 |
{ |
175 |
c = 0; |
176 |
zero = true; |
177 |
} |
178 |
|
179 |
buf->byte1 = c >> 8; |
180 |
buf->byte2 = c; |
181 |
buf++; |
182 |
} |
183 |
|
184 |
return (XChar2b *)enc_buf; |
185 |
} |
186 |
|
187 |
///////////////////////////////////////////////////////////////////////////// |
188 |
|
189 |
void |
190 |
rxvt_font::clear_rect (rxvt_drawable &d, int x, int y, int w, int h, int color) |
191 |
{ |
192 |
if (color == Color_bg) |
193 |
XClearArea (d.display->display, d, x, y, w, h, FALSE); |
194 |
else if (color >= 0) |
195 |
{ |
196 |
#if XFT |
197 |
XftDrawRect (d, &r->PixColors[color].c, x, y, w, h); |
198 |
#else |
199 |
XSetForeground (d.display->display, GC, r->PixColors[color]); |
200 |
XFillRectangle (d.display->display, d, GC, x, y, w, h); |
201 |
#endif |
202 |
} |
203 |
} |
204 |
|
205 |
static const char *linedraw_cmds[128] = { |
206 |
"1hH", "2hH", "1vV", "2vV", |
207 |
0, 0, 0, 0, |
208 |
0, 0, 0, 0, |
209 |
"1HV", "2H1V", "1H2V", "2HV", |
210 |
|
211 |
// 2510 |
212 |
"1hV", "2h1V", "1h2V", "2hV", |
213 |
"1Hv", "2H1v", "1H2v", "2Hv", |
214 |
"1hv", "2h1v", "1h2v", "2hv", |
215 |
"1HvV", "2H1vV", "1HV2v", "1Hv2V", |
216 |
|
217 |
// 2520 |
218 |
"1H2vV", "2Hv1V", "2HV1v", "2HvV", |
219 |
"1hvV", "2h1vV", "1hV2v", "1hv2V", |
220 |
"1h2vV", "2hv1V", "1v2hV", "2hvV", |
221 |
"1hHV", "2h1HV", "2H1hV", "2hH1V", |
222 |
|
223 |
// 2530 |
224 |
"1hH2V", "2hV1H", "1h2HV", "2hHV", |
225 |
"1hHv", "1vH2h", "1hv2H", "1v2hH", |
226 |
"1hH2v", "1H2hv", "1h2Hv", "2hHv", |
227 |
"1hHvV", "1vVH2h", "1hvV2H", "1vV2hH", |
228 |
|
229 |
// 2540 |
230 |
"1hHV2v", "1hHv2V", "1hH2vV", "1HV2hv", |
231 |
"1hV2Hv", "1Hv2hV", "1hv2HV", "1V2hHv", |
232 |
"1v2hHV", "1H2hvV", "1h2HvV", "2hHvV", |
233 |
0, 0, 0, 0, |
234 |
|
235 |
// 2550 |
236 |
0, 0, 0, 0, |
237 |
0, 0, 0, 0, |
238 |
0, 0, 0, 0, |
239 |
0, 0, 0, 0, |
240 |
|
241 |
// 2560 |
242 |
0, 0, 0, 0, |
243 |
0, 0, 0, 0, |
244 |
0, 0, 0, 0, |
245 |
0, 0, 0, 0, |
246 |
|
247 |
// 2570 |
248 |
0, "1a", "1b", "1ab", |
249 |
"1h", "1v", "1H", "1V", |
250 |
"2h", "2v", "2H", "2V", |
251 |
"1h2H", "1v2V", "1H2h", "1V2v" |
252 |
|
253 |
// to be done |
254 |
}; |
255 |
|
256 |
struct rxvt_font_default : rxvt_font { |
257 |
rxvt_fontprop properties () |
258 |
{ |
259 |
rxvt_fontprop p; |
260 |
|
261 |
p.width = p.height = 1; |
262 |
p.weight = rxvt_fontprop::medium; |
263 |
p.slant = rxvt_fontprop::roman; |
264 |
|
265 |
return p; |
266 |
} |
267 |
|
268 |
bool load (const rxvt_fontprop &prop) |
269 |
{ |
270 |
width = 1; height = 1; |
271 |
ascent = 1; descent = 0; |
272 |
|
273 |
set_name ("built-in pseudofont"); |
274 |
|
275 |
return true; |
276 |
} |
277 |
|
278 |
bool has_codepoint (uint32_t unicode) |
279 |
{ |
280 |
if (unicode <= 0x001f) |
281 |
return true; |
282 |
|
283 |
if (unicode >= 0x0080 && unicode <= 0x009f) |
284 |
return true; |
285 |
|
286 |
if (unicode >= 0x2500 && unicode <= 0x257f |
287 |
&& linedraw_cmds[unicode - 0x2500]) |
288 |
return true; |
289 |
|
290 |
if (IS_COMPOSE (unicode)) |
291 |
return true; |
292 |
|
293 |
switch (unicode) |
294 |
{ |
295 |
case ZERO_WIDTH_CHAR: |
296 |
return true; |
297 |
} |
298 |
|
299 |
return false; |
300 |
} |
301 |
|
302 |
void draw (rxvt_drawable &d, int x, int y, |
303 |
const text_t *text, int len, |
304 |
int fg, int bg); |
305 |
}; |
306 |
|
307 |
void |
308 |
rxvt_font_default::draw (rxvt_drawable &d, int x, int y, |
309 |
const text_t *text, int len, |
310 |
int fg, int bg) |
311 |
{ |
312 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
313 |
|
314 |
XSetForeground (d.display->display, GC, r->PixColors[fg]); |
315 |
|
316 |
while (len--) |
317 |
{ |
318 |
#if ENABLE_COMBINING |
319 |
compose_char *cc; |
320 |
#endif |
321 |
text_t t = *text++; |
322 |
|
323 |
// is it in our linedrawing table? |
324 |
if (t >= 0x2500 & t <= 0x2580 && linedraw_cmds[t - 0x2500]) |
325 |
{ |
326 |
const char *p = linedraw_cmds[t - 0x2500]; |
327 |
|
328 |
int x0 = x, x1 = x + (r->TermWin.fwidth - 1) / 2, x2 = x + r->TermWin.fwidth - 1; |
329 |
int y0 = y, y1 = y + (r->TermWin.fheight - 1) / 2, y2 = y + r->TermWin.fheight - 1; |
330 |
|
331 |
XGCValues gcv; |
332 |
|
333 |
while (*p) |
334 |
{ |
335 |
switch (*p++) |
336 |
{ |
337 |
case '1': |
338 |
gcv.line_width = 0; |
339 |
XChangeGC (d.display->display, GC, GCLineWidth, &gcv); |
340 |
break; |
341 |
|
342 |
case '2': |
343 |
gcv.line_width = 2; |
344 |
XChangeGC (d.display->display, GC, GCLineWidth, &gcv); |
345 |
break; |
346 |
|
347 |
case 'h': XDrawLine (d.display->display, d, GC, x0, y1, x1, y1); break; |
348 |
case 'H': XDrawLine (d.display->display, d, GC, x1, y1, x2, y1); break; |
349 |
case 'v': XDrawLine (d.display->display, d, GC, x1, y0, x1, y1); break; |
350 |
case 'V': XDrawLine (d.display->display, d, GC, x1, y1, x1, y2); break; |
351 |
case 'a': XDrawLine (d.display->display, d, GC, x0, y2, x2, y0); break; |
352 |
case 'b': XDrawLine (d.display->display, d, GC, x0, y0, x2, y2); break; |
353 |
} |
354 |
} |
355 |
|
356 |
gcv.line_width = 0; |
357 |
XChangeGC (d.display->display, GC, GCLineWidth, &gcv); |
358 |
} |
359 |
#if ENABLE_COMBINING |
360 |
else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) |
361 |
{ |
362 |
rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)]; |
363 |
f1->draw (d, x, y, &(t = cc->c1), 1, fg, bg); |
364 |
if (cc->c2 != NOCHAR) |
365 |
{ |
366 |
// prefer font of first character, for no good reasons |
367 |
rxvt_font *f2 = f1->has_codepoint (cc->c2) |
368 |
? f1 |
369 |
: (*fs)[fs->find_font (cc->c2)]; |
370 |
|
371 |
f2->draw (d, x, y, &(t = cc->c2), 1, fg, -1); |
372 |
} |
373 |
} |
374 |
#endif |
375 |
else |
376 |
switch (t) |
377 |
{ |
378 |
case ZERO_WIDTH_CHAR: |
379 |
break; |
380 |
default: |
381 |
int w = 0; |
382 |
while (len > 0 && *text == NOCHAR) |
383 |
{ |
384 |
++text; |
385 |
--len; |
386 |
w += r->TermWin.fwidth; |
387 |
} |
388 |
|
389 |
XDrawRectangle (d.display->display, d, GC, x + 2, y + 2, |
390 |
w + r->TermWin.fwidth - 5, r->TermWin.fheight - 5); |
391 |
x += w; |
392 |
} |
393 |
|
394 |
x += r->TermWin.fwidth; |
395 |
} |
396 |
} |
397 |
|
398 |
///////////////////////////////////////////////////////////////////////////// |
399 |
|
400 |
struct rxvt_font_x11 : rxvt_font { |
401 |
rxvt_font_x11 () { f = 0; } |
402 |
|
403 |
void clear (); |
404 |
|
405 |
rxvt_fontprop properties (); |
406 |
|
407 |
bool load (const rxvt_fontprop &prop); |
408 |
|
409 |
bool has_codepoint (uint32_t unicode); |
410 |
|
411 |
void draw (rxvt_drawable &d, int x, int y, |
412 |
const text_t *text, int len, |
413 |
int fg, int bg); |
414 |
|
415 |
XFontStruct *f; |
416 |
codeset cs; |
417 |
bool enc2b, encm; |
418 |
|
419 |
const char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
420 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
421 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
422 |
bool set_properties (rxvt_fontprop &p, const char *name); |
423 |
}; |
424 |
|
425 |
const char * |
426 |
rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
427 |
{ |
428 |
unsigned long value; |
429 |
|
430 |
if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
431 |
return XGetAtomName (DISPLAY, value); |
432 |
else |
433 |
return repl; |
434 |
} |
435 |
|
436 |
rxvt_fontprop |
437 |
rxvt_font_x11::properties () |
438 |
{ |
439 |
rxvt_fontprop p; |
440 |
set_properties (p, f); |
441 |
return p; |
442 |
} |
443 |
|
444 |
bool |
445 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
446 |
{ |
447 |
p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
448 |
p.height = height; |
449 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
450 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
451 |
|
452 |
return true; |
453 |
} |
454 |
|
455 |
bool |
456 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
457 |
{ |
458 |
const char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
459 |
const char *slant = get_property (f, "SLANT", "r"); |
460 |
|
461 |
unsigned long height; |
462 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height)) |
463 |
return false; |
464 |
|
465 |
unsigned long avgwidth; |
466 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth)) |
467 |
avgwidth = 0; |
468 |
|
469 |
return set_properties (p, height, weight, slant, avgwidth); |
470 |
} |
471 |
|
472 |
bool |
473 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
474 |
{ |
475 |
int slashes = 0; |
476 |
const char *comp[13]; |
477 |
|
478 |
for (const char *c = name; *c; c++) |
479 |
if (*c == '-') |
480 |
{ |
481 |
comp[slashes++] = c + 1; |
482 |
if (slashes >= 13) |
483 |
break; |
484 |
} |
485 |
|
486 |
/* can we short-circuit the costly XLoadQueryFont? */ |
487 |
if (slashes >= 13 |
488 |
&& (*comp[ 6] >= '1' && *comp[ 6] <= '9') |
489 |
&& (*comp[11] >= '0' && *comp[11] <= '9')) |
490 |
return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11])); |
491 |
|
492 |
XFontStruct *f = XLoadQueryFont (DISPLAY, name); |
493 |
|
494 |
if (f) |
495 |
{ |
496 |
// the font should really exist now. if not, we have a problem |
497 |
// (e.g. if the user did xset fp rehash just when we were searching fonts). |
498 |
// in that case, just return garbage. |
499 |
bool ret = set_properties (p, f); |
500 |
XFreeFont (DISPLAY, f); |
501 |
return ret; |
502 |
} |
503 |
else |
504 |
return false; |
505 |
} |
506 |
|
507 |
// fix the size of scalable fonts |
508 |
static void |
509 |
fix_scalable (char *buf, const char *name, const rxvt_fontprop &prop) |
510 |
{ |
511 |
int slashes = 0; |
512 |
const char *size; |
513 |
|
514 |
for (const char *c = name; *c; c++) |
515 |
if (*c == '-') |
516 |
{ |
517 |
if (slashes == 6) |
518 |
size = c + 1; |
519 |
|
520 |
if (++slashes >= 13) |
521 |
break; |
522 |
} |
523 |
|
524 |
if (slashes >= 13 && size[0] == '0') |
525 |
{ |
526 |
strncpy (buf, name, size - name); |
527 |
buf += size - name; |
528 |
buf += sprintf (buf, "%d", prop.height); |
529 |
strcpy (buf, size + 1); |
530 |
} |
531 |
else |
532 |
strcpy (buf, name); |
533 |
} |
534 |
|
535 |
bool |
536 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
537 |
{ |
538 |
clear (); |
539 |
|
540 |
char **list; |
541 |
int count; |
542 |
list = XListFonts (DISPLAY, name, 512, &count); |
543 |
set_name (0); |
544 |
|
545 |
if (!list) |
546 |
return false; |
547 |
|
548 |
int bestdiff = 0x7fffffff; |
549 |
for (int i = 0; i < count; i++) |
550 |
{ |
551 |
rxvt_fontprop p; |
552 |
char fname[1024]; |
553 |
fix_scalable (fname, list[i], prop); |
554 |
|
555 |
if (!set_properties (p, fname)) |
556 |
continue; |
557 |
|
558 |
if (p.height > prop.height) // weed out too large fonts |
559 |
continue; |
560 |
|
561 |
int diff = (prop.height - p.height) * 32 |
562 |
+ abs (prop.weight - p.weight) |
563 |
+ abs (prop.slant - p.slant ); |
564 |
|
565 |
if (!name // compare against best found so far |
566 |
|| diff < bestdiff) |
567 |
{ |
568 |
set_name (strdup (fname)); |
569 |
bestdiff = diff; |
570 |
} |
571 |
} |
572 |
|
573 |
XFreeFontNames (list); |
574 |
|
575 |
if (!name) |
576 |
return false; |
577 |
|
578 |
f = XLoadQueryFont (DISPLAY, name); |
579 |
|
580 |
if (!f) |
581 |
return false; |
582 |
|
583 |
const char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
584 |
const char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
585 |
|
586 |
if (registry && encoding) |
587 |
{ |
588 |
char charset[64]; |
589 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
590 |
|
591 |
cs = codeset_from_name (charset); |
592 |
} |
593 |
else |
594 |
{ |
595 |
const char *charset = get_property (f, "FONT", 0); |
596 |
|
597 |
if (!charset) |
598 |
charset = name; |
599 |
|
600 |
int count = 13; |
601 |
while (*charset) |
602 |
if (*charset++ == '-' && !--count) |
603 |
break; |
604 |
|
605 |
cs = codeset_from_name (charset); |
606 |
} |
607 |
|
608 |
if (cs == CS_UNICODE) |
609 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
610 |
|
611 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
612 |
enc2b = encm || f->max_char_or_byte2 > 255; |
613 |
|
614 |
ascent = f->ascent; |
615 |
descent = f->descent; |
616 |
height = ascent + descent; |
617 |
|
618 |
slow = false; |
619 |
|
620 |
if (f->min_bounds.width == f->max_bounds.width) |
621 |
width = f->min_bounds.width; |
622 |
else if (f->per_char == NULL) |
623 |
width = f->max_bounds.width; |
624 |
else |
625 |
{ |
626 |
slow = true; |
627 |
|
628 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
629 |
|
630 |
if (encm) |
631 |
N += (f->max_byte1 - f->min_byte1) |
632 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
633 |
|
634 |
while (N) |
635 |
{ |
636 |
if (f->per_char[N].width > width) |
637 |
width = f->per_char[N].width; |
638 |
|
639 |
--N; |
640 |
} |
641 |
} |
642 |
|
643 |
if (cs == CS_UNKNOWN) |
644 |
{ |
645 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
646 |
|
647 |
clear (); |
648 |
|
649 |
return false; |
650 |
} |
651 |
|
652 |
return true; |
653 |
} |
654 |
|
655 |
void |
656 |
rxvt_font_x11::clear () |
657 |
{ |
658 |
if (f) |
659 |
{ |
660 |
XFreeFont (DISPLAY, f); |
661 |
f = 0; |
662 |
} |
663 |
} |
664 |
|
665 |
bool |
666 |
rxvt_font_x11::has_codepoint (uint32_t unicode) |
667 |
{ |
668 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
669 |
|
670 |
if (ch == NOCHAR) |
671 |
return false; |
672 |
|
673 |
/* check wether the character exists in _this_ font. horrible. */ |
674 |
XCharStruct *xcs; |
675 |
|
676 |
if (encm) |
677 |
{ |
678 |
unsigned char byte1 = ch >> 8; |
679 |
unsigned char byte2 = ch & 255; |
680 |
|
681 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
682 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
683 |
return false; |
684 |
|
685 |
if (!f->per_char) |
686 |
return true; |
687 |
|
688 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
689 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
690 |
|
691 |
xcs = f->per_char + N; |
692 |
} |
693 |
else |
694 |
{ |
695 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
696 |
return false; |
697 |
|
698 |
if (!f->per_char) |
699 |
return true; |
700 |
|
701 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
702 |
} |
703 |
|
704 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
705 |
&& xcs->ascent == 0 && xcs->descent == 0) |
706 |
return false; |
707 |
|
708 |
return true; |
709 |
} |
710 |
|
711 |
void |
712 |
rxvt_font_x11::draw (rxvt_drawable &d, int x, int y, |
713 |
const text_t *text, int len, |
714 |
int fg, int bg) |
715 |
{ |
716 |
// this looks like a mess /. |
717 |
// and it is a mess /. |
718 |
// yet we are trying to be perfect /. |
719 |
// but the result still isn't perfect /. |
720 |
|
721 |
bool slow = this->slow |
722 |
|| width != r->TermWin.fwidth |
723 |
|| height != r->TermWin.fheight; |
724 |
|
725 |
int base = r->TermWin.fbase; |
726 |
|
727 |
XGCValues v; |
728 |
v.foreground = r->PixColors[fg]; |
729 |
v.background = r->PixColors[bg]; |
730 |
v.font = f->fid; |
731 |
|
732 |
if (enc2b) |
733 |
{ |
734 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
735 |
|
736 |
if (bg == Color_bg && !slow) |
737 |
{ |
738 |
XChangeGC (d.display->display, GC, GCForeground | GCBackground | GCFont, &v); |
739 |
XDrawImageString16 (d.display->display, d, GC, x, y + base, xc, len); |
740 |
} |
741 |
else |
742 |
{ |
743 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
744 |
|
745 |
XChangeGC (d.display->display, GC, GCForeground | GCFont, &v); |
746 |
|
747 |
if (slow) |
748 |
{ |
749 |
do |
750 |
{ |
751 |
if (xc->byte1 || xc->byte2) |
752 |
XDrawString16 (d.display->display, d, GC, x, y + base, xc, 1); |
753 |
|
754 |
x += r->TermWin.fwidth; |
755 |
xc++; len--; |
756 |
} |
757 |
while (len); |
758 |
} |
759 |
else |
760 |
XDrawString16 (d.display->display, d, GC, x, y + base, xc, len); |
761 |
} |
762 |
} |
763 |
else |
764 |
{ |
765 |
const char *xc = enc_char (text, len, cs, slow); |
766 |
|
767 |
if (bg == Color_bg && !slow) |
768 |
{ |
769 |
XChangeGC (d.display->display, GC, GCForeground | GCBackground | GCFont, &v); |
770 |
XDrawImageString (d.display->display, d, GC, x, y + base, xc, len); |
771 |
} |
772 |
else |
773 |
{ |
774 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
775 |
|
776 |
XChangeGC (d.display->display, GC, GCForeground | GCFont, &v); |
777 |
|
778 |
if (slow) |
779 |
{ |
780 |
do |
781 |
{ |
782 |
if (*xc) |
783 |
XDrawString (d.display->display, d, GC, x, y + base, xc, 1); |
784 |
|
785 |
x += r->TermWin.fwidth; |
786 |
xc++; len--; |
787 |
} |
788 |
while (len); |
789 |
} |
790 |
else |
791 |
XDrawString (d.display->display, d, GC, x, y + base, xc, len); |
792 |
} |
793 |
} |
794 |
} |
795 |
|
796 |
///////////////////////////////////////////////////////////////////////////// |
797 |
|
798 |
#if XFT |
799 |
#if 0 |
800 |
#define UNIBITS 21 |
801 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
802 |
#define SWATHBITS 8 |
803 |
#endif |
804 |
|
805 |
struct rxvt_font_xft : rxvt_font { |
806 |
rxvt_font_xft () { f = 0; } |
807 |
|
808 |
void clear (); |
809 |
|
810 |
rxvt_fontprop properties (); |
811 |
|
812 |
bool load (const rxvt_fontprop &prop); |
813 |
|
814 |
void draw (rxvt_drawable &d, int x, int y, |
815 |
const text_t *text, int len, |
816 |
int fg, int bg); |
817 |
|
818 |
bool has_codepoint (uint32_t unicode); |
819 |
|
820 |
protected: |
821 |
XftFont *f; |
822 |
}; |
823 |
|
824 |
void |
825 |
rxvt_font_xft::clear () |
826 |
{ |
827 |
if (f) |
828 |
{ |
829 |
XftFontClose (DISPLAY, f); |
830 |
f = 0; |
831 |
} |
832 |
} |
833 |
|
834 |
rxvt_fontprop |
835 |
rxvt_font_xft::properties () |
836 |
{ |
837 |
rxvt_fontprop p; |
838 |
|
839 |
FT_Face face = XftLockFace (f); |
840 |
|
841 |
p.width = width; p.height = height; |
842 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
843 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC ? rxvt_fontprop::italic : rxvt_fontprop::roman; |
844 |
|
845 |
XftUnlockFace (f); |
846 |
|
847 |
return p; |
848 |
} |
849 |
|
850 |
bool |
851 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
852 |
{ |
853 |
#if 0 |
854 |
for (int i = 0; i < SWATHCOUNT; i++) |
855 |
cvr[i] = 0; |
856 |
#endif |
857 |
|
858 |
clear (); |
859 |
|
860 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
861 |
|
862 |
if (!p) |
863 |
return false; |
864 |
|
865 |
FcValue v; |
866 |
|
867 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
868 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
869 |
|
870 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
871 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
872 |
|
873 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
874 |
// clip width, we can't do better, or can we? |
875 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
876 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop.width); |
877 |
#endif |
878 |
|
879 |
//FcPatternAddBool (p, FC_MINSPACE, 1); |
880 |
|
881 |
XftResult result; |
882 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
883 |
|
884 |
FcPatternDestroy (p); |
885 |
|
886 |
if (!match) |
887 |
return false; |
888 |
|
889 |
f = XftFontOpenPattern (DISPLAY, match); |
890 |
|
891 |
if (!f) |
892 |
{ |
893 |
FcPatternDestroy (match); |
894 |
return false; |
895 |
} |
896 |
|
897 |
FT_Face face = XftLockFace (f); |
898 |
|
899 |
slow = !FT_IS_FIXED_WIDTH (face); |
900 |
|
901 |
int ftheight = 0; |
902 |
|
903 |
for (;;) |
904 |
{ |
905 |
XGlyphInfo g1, g2; |
906 |
FcChar8 c; |
907 |
|
908 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
909 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
910 |
|
911 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
912 |
slow = true; |
913 |
|
914 |
width = g2.xOff; |
915 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
916 |
descent = (-face->size->metrics.descender + 63) >> 6; |
917 |
height = ascent + descent; |
918 |
|
919 |
if (height <= prop.height || !prop.height) |
920 |
break; |
921 |
|
922 |
if (ftheight) |
923 |
{ |
924 |
// take smaller steps near the end |
925 |
if (height > prop.height + 1) ftheight++; |
926 |
if (height > prop.height + 2) ftheight++; |
927 |
if (height > prop.height + 3) ftheight++; |
928 |
|
929 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
930 |
} |
931 |
else |
932 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
933 |
} |
934 |
|
935 |
XftUnlockFace (f); |
936 |
|
937 |
return true; |
938 |
} |
939 |
|
940 |
bool |
941 |
rxvt_font_xft::has_codepoint (uint32_t unicode) |
942 |
{ |
943 |
return XftCharExists (DISPLAY, f, unicode); |
944 |
} |
945 |
|
946 |
void |
947 |
rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, |
948 |
const text_t *text, int len, |
949 |
int fg, int bg) |
950 |
{ |
951 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
952 |
|
953 |
if (!slow && width == r->TermWin.fwidth && 0) |
954 |
{ |
955 |
if (sizeof (text_t) == sizeof (FcChar16)) |
956 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
957 |
else |
958 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
959 |
} |
960 |
else |
961 |
{ |
962 |
while (len) |
963 |
{ |
964 |
if (*text != NOCHAR && *text != ' ') |
965 |
{ |
966 |
int fwidth = r->TermWin.fwidth; |
967 |
if (len >= 2 && text[1] == NOCHAR) |
968 |
fwidth *= 2; |
969 |
|
970 |
XGlyphInfo extents; |
971 |
if (sizeof (text_t) == sizeof (FcChar16)) |
972 |
{ |
973 |
XftTextExtents16 (d.display->display, f, (const FcChar16 *)text, 1, &extents); |
974 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
975 |
y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
976 |
} |
977 |
else |
978 |
{ |
979 |
XGlyphInfo extents; |
980 |
XftTextExtents32 (d.display->display, f, (const FcChar32 *)text, 1, &extents); |
981 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
982 |
y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
983 |
} |
984 |
} |
985 |
|
986 |
x += r->TermWin.fwidth; |
987 |
text++; |
988 |
len--; |
989 |
} |
990 |
} |
991 |
} |
992 |
#endif |
993 |
|
994 |
///////////////////////////////////////////////////////////////////////////// |
995 |
|
996 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
997 |
: r (r) |
998 |
{ |
999 |
clear (); |
1000 |
} |
1001 |
|
1002 |
rxvt_fontset::~rxvt_fontset () |
1003 |
{ |
1004 |
clear (); |
1005 |
} |
1006 |
|
1007 |
void |
1008 |
rxvt_fontset::clear () |
1009 |
{ |
1010 |
for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) |
1011 |
FONT_UNREF (*i); |
1012 |
|
1013 |
fonts.clear (); |
1014 |
base_id = 0; |
1015 |
base_prop.height = 0x7fffffff; |
1016 |
base_prop.weight = rxvt_fontprop::medium; |
1017 |
base_prop.slant = rxvt_fontprop::roman; |
1018 |
|
1019 |
fallback = fallback_fonts; |
1020 |
} |
1021 |
|
1022 |
rxvt_font * |
1023 |
rxvt_fontset::new_font (const char *name, codeset cs) |
1024 |
{ |
1025 |
rxvt_font *f; |
1026 |
|
1027 |
if (!name || !*name) |
1028 |
{ |
1029 |
name = ""; |
1030 |
f = new rxvt_font_default; |
1031 |
} |
1032 |
#if XFT |
1033 |
else if (!strncmp (name, "xft:", 4)) |
1034 |
{ |
1035 |
name += 4; |
1036 |
f = new rxvt_font_xft; |
1037 |
} |
1038 |
#endif |
1039 |
else if (!strncmp (name, "x:", 2)) |
1040 |
{ |
1041 |
name += 2; |
1042 |
f = new rxvt_font_x11; |
1043 |
} |
1044 |
else |
1045 |
f = new rxvt_font_x11; |
1046 |
|
1047 |
f->fs = this; |
1048 |
f->set_term (r); |
1049 |
f->set_name (strdup (name)); |
1050 |
|
1051 |
f->cs = cs; |
1052 |
f->loaded = false; |
1053 |
|
1054 |
return f; |
1055 |
} |
1056 |
|
1057 |
///////////////////////////////////////////////////////////////////////////// |
1058 |
|
1059 |
void |
1060 |
rxvt_fontset::add_fonts (const char *desc) |
1061 |
{ |
1062 |
if (desc) |
1063 |
{ |
1064 |
char buf[512]; |
1065 |
const char *end; |
1066 |
|
1067 |
do |
1068 |
{ |
1069 |
while (*desc <= ' ') desc++; |
1070 |
|
1071 |
if (*desc == '[') |
1072 |
{ |
1073 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
1074 |
|
1075 |
//const char *extra = desc++; // not yet used |
1076 |
|
1077 |
desc = strchr (desc, ']'); |
1078 |
|
1079 |
if (!desc) |
1080 |
{ |
1081 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
1082 |
break; |
1083 |
} |
1084 |
|
1085 |
desc++; |
1086 |
while (*desc <= ' ') desc++; |
1087 |
} |
1088 |
|
1089 |
end = strchr (desc, ','); |
1090 |
if (!end) |
1091 |
end = desc + strlen (desc); |
1092 |
|
1093 |
if (end - desc < 511) |
1094 |
{ |
1095 |
strncpy (buf, desc, end - desc); |
1096 |
buf[end - desc] = 0; |
1097 |
|
1098 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
1099 |
} |
1100 |
|
1101 |
desc = end + 1; |
1102 |
} |
1103 |
while (*end); |
1104 |
} |
1105 |
} |
1106 |
|
1107 |
bool |
1108 |
rxvt_fontset::realize_font (int i) |
1109 |
{ |
1110 |
if (fonts[i]->loaded) |
1111 |
return true; |
1112 |
|
1113 |
fonts[i]->loaded = true; |
1114 |
|
1115 |
if (!fonts[i]->load (base_prop)) |
1116 |
{ |
1117 |
fonts[i]->cs = CS_UNKNOWN; |
1118 |
return false; |
1119 |
} |
1120 |
|
1121 |
return true; |
1122 |
} |
1123 |
|
1124 |
bool |
1125 |
rxvt_fontset::populate (const char *desc) |
1126 |
{ |
1127 |
clear (); |
1128 |
|
1129 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1130 |
realize_font (0); |
1131 |
|
1132 |
add_fonts (desc); |
1133 |
|
1134 |
if (!base_id) |
1135 |
base_id = 1; |
1136 |
|
1137 |
// we currently need a base-font, no matter what |
1138 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1139 |
{ |
1140 |
puts ("unable to load specified font (s), falling back to 'fixed'\n"); |
1141 |
add_fonts ("fixed"); |
1142 |
base_id = fonts.size () - 1; |
1143 |
} |
1144 |
|
1145 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1146 |
return false; |
1147 |
|
1148 |
base_prop = fonts[base_id]->properties (); |
1149 |
|
1150 |
return true; |
1151 |
} |
1152 |
|
1153 |
int |
1154 |
rxvt_fontset::find_font (uint32_t unicode) |
1155 |
{ |
1156 |
for (unsigned int i = 0; i < fonts.size (); i++) |
1157 |
{ |
1158 |
rxvt_font *f = fonts[i]; |
1159 |
|
1160 |
if (!f->loaded) |
1161 |
{ |
1162 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1163 |
goto next_font; |
1164 |
|
1165 |
if (!realize_font (i)) |
1166 |
goto next_font; |
1167 |
} |
1168 |
|
1169 |
if (f->cs != CS_UNKNOWN && f->has_codepoint (unicode)) |
1170 |
return i; |
1171 |
|
1172 |
next_font: |
1173 |
if (i == fonts.size () - 1 && fallback->name) |
1174 |
{ |
1175 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1176 |
fallback++; |
1177 |
i = 0; |
1178 |
} |
1179 |
} |
1180 |
|
1181 |
return 0; /* we must return SOME font */ |
1182 |
} |
1183 |
|
1184 |
|
1185 |
|