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 TGC 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_1990_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, TGC, r->PixColors[color]); |
200 |
XFillRectangle (d.display->display, d, TGC, x, y, w, h); |
201 |
#endif |
202 |
} |
203 |
} |
204 |
|
205 |
#include "table/linedraw.h" |
206 |
|
207 |
struct rxvt_font_default : rxvt_font { |
208 |
|
209 |
rxvt_fontprop properties () |
210 |
{ |
211 |
rxvt_fontprop p; |
212 |
|
213 |
p.width = p.height = 1; |
214 |
p.weight = rxvt_fontprop::medium; |
215 |
p.slant = rxvt_fontprop::roman; |
216 |
|
217 |
return p; |
218 |
} |
219 |
|
220 |
bool load (const rxvt_fontprop &prop) |
221 |
{ |
222 |
width = 1; height = 1; |
223 |
ascent = 1; descent = 0; |
224 |
|
225 |
set_name (strdup ("built-in pseudofont")); |
226 |
|
227 |
return true; |
228 |
} |
229 |
|
230 |
bool has_codepoint (unicode_t unicode) |
231 |
{ |
232 |
if (unicode <= 0x001f) |
233 |
return true; |
234 |
|
235 |
if (unicode >= 0x0080 && unicode <= 0x009f) |
236 |
return true; |
237 |
|
238 |
if (unicode >= 0x2500 && unicode <= 0x259f) |
239 |
return true; |
240 |
|
241 |
if (IS_COMPOSE (unicode)) |
242 |
return true; |
243 |
|
244 |
switch (unicode) |
245 |
{ |
246 |
case ZERO_WIDTH_CHAR: |
247 |
return true; |
248 |
} |
249 |
|
250 |
return false; |
251 |
} |
252 |
|
253 |
void draw (rxvt_drawable &d, int x, int y, |
254 |
const text_t *text, int len, |
255 |
int fg, int bg); |
256 |
}; |
257 |
|
258 |
void |
259 |
rxvt_font_default::draw (rxvt_drawable &d, int x, int y, |
260 |
const text_t *text, int len, |
261 |
int fg, int bg) |
262 |
{ |
263 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
264 |
|
265 |
XSetForeground (d.display->display, TGC, r->PixColors[fg]); |
266 |
|
267 |
while (len--) |
268 |
{ |
269 |
#if ENABLE_COMBINING |
270 |
compose_char *cc; |
271 |
#endif |
272 |
text_t t = *text++; |
273 |
|
274 |
if (0x2500 <= t && t <= 0x259f) |
275 |
{ |
276 |
uint16_t offs = linedraw_offs[t - 0x2500]; |
277 |
uint32_t *a = linedraw_command + (offs >> 4); |
278 |
uint32_t *b = a + (offs & 15); |
279 |
|
280 |
int W = r->TermWin.fwidth; |
281 |
int H = r->TermWin.fheight; |
282 |
|
283 |
int x_[16]; |
284 |
int y_[16]; |
285 |
|
286 |
for (int i = 0; i <= 8; i++) |
287 |
{ |
288 |
x_[i] = x + ((W-1) * i + (i*7/8)) / 8; |
289 |
y_[i] = y + ((H-1) * i + (i*7/8)) / 8; |
290 |
} |
291 |
|
292 |
x_[10] = x + (W - 1) / 2; x_[9] = x_[10] - 1; x_[11] = x_[10] + 1; |
293 |
y_[10] = y + (H - 1) / 2; y_[9] = y_[10] - 1; y_[11] = y_[10] + 1; |
294 |
|
295 |
XGCValues gcv; |
296 |
|
297 |
gcv.cap_style = CapButt; |
298 |
gcv.line_width = 0; |
299 |
XChangeGC (d.display->display, TGC, GCLineWidth | GCCapStyle, &gcv); |
300 |
|
301 |
while (a < b) |
302 |
{ |
303 |
uint32_t command = *a++; |
304 |
|
305 |
int op = (command >> 24) & 255; |
306 |
int a = (command >> 20) & 15; |
307 |
int b = (command >> 16) & 15; |
308 |
int x1 = x_[(command >> 12) & 15]; |
309 |
int y1 = y_[(command >> 8) & 15]; |
310 |
int x2 = x_[(command >> 4) & 15]; |
311 |
int y2 = y_[(command >> 0) & 15]; |
312 |
|
313 |
switch (op) |
314 |
{ |
315 |
case 0: // line |
316 |
XDrawLine (d.display->display, d, TGC, x1, y1, x2, y2); |
317 |
break; |
318 |
|
319 |
case 1: // rectangle, possibly stippled |
320 |
if (a) |
321 |
{ |
322 |
static char bm[] = { 0,0 , 3,1 , 1,2 , 1,0 }; |
323 |
|
324 |
gcv.fill_style = FillStippled; |
325 |
gcv.stipple = XCreateBitmapFromData (d.display->display, d, bm + a * 2, 2, 2); |
326 |
gcv.ts_x_origin = x; |
327 |
gcv.ts_y_origin = y; |
328 |
|
329 |
XChangeGC (d.display->display, TGC, |
330 |
GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin, |
331 |
&gcv); |
332 |
} |
333 |
|
334 |
XFillRectangle (d.display->display, d, TGC, x1, y1, x2 - x1 + 1, y2 - y1 + 1); |
335 |
|
336 |
if (a) |
337 |
{ |
338 |
XFreePixmap (d.display->display, gcv.stipple); |
339 |
gcv.stipple = 0; |
340 |
gcv.fill_style = FillSolid; |
341 |
XChangeGC (d.display->display, TGC, GCFillStyle, &gcv); |
342 |
} |
343 |
break; |
344 |
case 2: // arc |
345 |
XDrawArc (d.display->display, d, TGC, |
346 |
x1 - W/2, y1 - H/2, W-1, H-1, |
347 |
(a - 1) * 90*64, (b - 1) * 90*64); |
348 |
break; |
349 |
} |
350 |
} |
351 |
} |
352 |
#if ENABLE_COMBINING |
353 |
else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) |
354 |
{ |
355 |
rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)]; |
356 |
f1->draw (d, x, y, &(t = cc->c1), 1, fg, bg); |
357 |
if (cc->c2 != NOCHAR) |
358 |
{ |
359 |
// prefer font of first character, for no good reasons |
360 |
rxvt_font *f2 = f1->has_codepoint (cc->c2) |
361 |
? f1 |
362 |
: (*fs)[fs->find_font (cc->c2)]; |
363 |
|
364 |
f2->draw (d, x, y, &(t = cc->c2), 1, fg, -1); |
365 |
} |
366 |
} |
367 |
#endif |
368 |
else |
369 |
switch (t) |
370 |
{ |
371 |
case ZERO_WIDTH_CHAR: |
372 |
break; |
373 |
|
374 |
default: |
375 |
int w = 0; |
376 |
while (len > 0 && *text == NOCHAR) |
377 |
{ |
378 |
++text; |
379 |
--len; |
380 |
w += r->TermWin.fwidth; |
381 |
} |
382 |
|
383 |
XDrawRectangle (d.display->display, d, TGC, x + 2, y + 2, |
384 |
w + r->TermWin.fwidth - 4, r->TermWin.fheight - 4); |
385 |
x += w; |
386 |
} |
387 |
|
388 |
x += r->TermWin.fwidth; |
389 |
} |
390 |
} |
391 |
|
392 |
///////////////////////////////////////////////////////////////////////////// |
393 |
|
394 |
struct rxvt_font_x11 : rxvt_font { |
395 |
rxvt_font_x11 () { f = 0; } |
396 |
|
397 |
void clear (); |
398 |
|
399 |
rxvt_fontprop properties (); |
400 |
|
401 |
bool load (const rxvt_fontprop &prop); |
402 |
|
403 |
bool has_codepoint (unicode_t unicode); |
404 |
|
405 |
void draw (rxvt_drawable &d, int x, int y, |
406 |
const text_t *text, int len, |
407 |
int fg, int bg); |
408 |
|
409 |
XFontStruct *f; |
410 |
codeset cs; |
411 |
bool enc2b, encm; |
412 |
|
413 |
const char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
414 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
415 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
416 |
bool set_properties (rxvt_fontprop &p, const char *name); |
417 |
}; |
418 |
|
419 |
const char * |
420 |
rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
421 |
{ |
422 |
unsigned long value; |
423 |
|
424 |
if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
425 |
return XGetAtomName (DISPLAY, value); |
426 |
else |
427 |
return repl; |
428 |
} |
429 |
|
430 |
rxvt_fontprop |
431 |
rxvt_font_x11::properties () |
432 |
{ |
433 |
rxvt_fontprop p; |
434 |
set_properties (p, f); |
435 |
return p; |
436 |
} |
437 |
|
438 |
bool |
439 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
440 |
{ |
441 |
p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
442 |
p.height = height; |
443 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
444 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
445 |
|
446 |
return true; |
447 |
} |
448 |
|
449 |
bool |
450 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
451 |
{ |
452 |
const char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
453 |
const char *slant = get_property (f, "SLANT", "r"); |
454 |
|
455 |
unsigned long height; |
456 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height)) |
457 |
return false; |
458 |
|
459 |
unsigned long avgwidth; |
460 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth)) |
461 |
avgwidth = 0; |
462 |
|
463 |
return set_properties (p, height, weight, slant, avgwidth); |
464 |
} |
465 |
|
466 |
bool |
467 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
468 |
{ |
469 |
int slashes = 0; |
470 |
const char *comp[13]; |
471 |
|
472 |
for (const char *c = name; *c; c++) |
473 |
if (*c == '-') |
474 |
{ |
475 |
comp[slashes++] = c + 1; |
476 |
if (slashes >= 13) |
477 |
break; |
478 |
} |
479 |
|
480 |
/* can we short-circuit the costly XLoadQueryFont? */ |
481 |
if (slashes >= 13 |
482 |
&& (*comp[ 6] >= '1' && *comp[ 6] <= '9') |
483 |
&& (*comp[11] >= '0' && *comp[11] <= '9')) |
484 |
return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11])); |
485 |
|
486 |
XFontStruct *f = XLoadQueryFont (DISPLAY, name); |
487 |
|
488 |
if (f) |
489 |
{ |
490 |
// the font should really exist now. if not, we have a problem |
491 |
// (e.g. if the user did xset fp rehash just when we were searching fonts). |
492 |
// in that case, just return garbage. |
493 |
bool ret = set_properties (p, f); |
494 |
XFreeFont (DISPLAY, f); |
495 |
return ret; |
496 |
} |
497 |
else |
498 |
return false; |
499 |
} |
500 |
|
501 |
// fix the size of scalable fonts |
502 |
static void |
503 |
fix_scalable (char *buf, const char *name, const rxvt_fontprop &prop) |
504 |
{ |
505 |
int slashes = 0; |
506 |
const char *size; |
507 |
|
508 |
for (const char *c = name; *c; c++) |
509 |
if (*c == '-') |
510 |
{ |
511 |
if (slashes == 6) |
512 |
size = c + 1; |
513 |
|
514 |
if (++slashes >= 13) |
515 |
break; |
516 |
} |
517 |
|
518 |
if (slashes >= 13 && size[0] == '0') |
519 |
{ |
520 |
strncpy (buf, name, size - name); |
521 |
buf += size - name; |
522 |
buf += sprintf (buf, "%d", prop.height); |
523 |
strcpy (buf, size + 1); |
524 |
} |
525 |
else |
526 |
strcpy (buf, name); |
527 |
} |
528 |
|
529 |
bool |
530 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
531 |
{ |
532 |
clear (); |
533 |
|
534 |
char **list; |
535 |
int count; |
536 |
list = XListFonts (DISPLAY, name, 512, &count); |
537 |
set_name (0); |
538 |
|
539 |
if (!list) |
540 |
return false; |
541 |
|
542 |
int bestdiff = 0x7fffffff; |
543 |
for (int i = 0; i < count; i++) |
544 |
{ |
545 |
rxvt_fontprop p; |
546 |
char fname[1024]; |
547 |
fix_scalable (fname, list[i], prop); |
548 |
|
549 |
if (!set_properties (p, fname)) |
550 |
continue; |
551 |
|
552 |
if (p.height > prop.height) // weed out too large fonts |
553 |
continue; |
554 |
|
555 |
int diff = (prop.height - p.height) * 32 |
556 |
+ abs (prop.weight - p.weight) |
557 |
+ abs (prop.slant - p.slant ); |
558 |
|
559 |
if (!name // compare against best found so far |
560 |
|| diff < bestdiff) |
561 |
{ |
562 |
set_name (strdup (fname)); |
563 |
bestdiff = diff; |
564 |
} |
565 |
} |
566 |
|
567 |
XFreeFontNames (list); |
568 |
|
569 |
if (!name) |
570 |
return false; |
571 |
|
572 |
f = XLoadQueryFont (DISPLAY, name); |
573 |
|
574 |
if (!f) |
575 |
return false; |
576 |
|
577 |
const char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
578 |
const char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
579 |
|
580 |
if (registry && encoding) |
581 |
{ |
582 |
char charset[64]; |
583 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
584 |
|
585 |
cs = codeset_from_name (charset); |
586 |
} |
587 |
else |
588 |
{ |
589 |
const char *charset = get_property (f, "FONT", 0); |
590 |
|
591 |
if (!charset) |
592 |
charset = name; |
593 |
|
594 |
int count = 13; |
595 |
while (*charset) |
596 |
if (*charset++ == '-' && !--count) |
597 |
break; |
598 |
|
599 |
cs = codeset_from_name (charset); |
600 |
} |
601 |
|
602 |
if (cs == CS_UNICODE) |
603 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
604 |
|
605 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
606 |
enc2b = encm || f->max_char_or_byte2 > 255; |
607 |
|
608 |
ascent = f->ascent; |
609 |
descent = f->descent; |
610 |
height = ascent + descent; |
611 |
|
612 |
slow = false; |
613 |
|
614 |
if (f->min_bounds.width == f->max_bounds.width) |
615 |
width = f->min_bounds.width; |
616 |
else if (f->per_char == NULL) |
617 |
width = f->max_bounds.width; |
618 |
else |
619 |
{ |
620 |
slow = true; |
621 |
|
622 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
623 |
|
624 |
if (encm) |
625 |
N += (f->max_byte1 - f->min_byte1) |
626 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
627 |
|
628 |
while (N) |
629 |
{ |
630 |
if (f->per_char[N].width > width) |
631 |
width = f->per_char[N].width; |
632 |
|
633 |
--N; |
634 |
} |
635 |
} |
636 |
|
637 |
if (cs == CS_UNKNOWN) |
638 |
{ |
639 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
640 |
|
641 |
clear (); |
642 |
|
643 |
return false; |
644 |
} |
645 |
|
646 |
return true; |
647 |
} |
648 |
|
649 |
void |
650 |
rxvt_font_x11::clear () |
651 |
{ |
652 |
if (f) |
653 |
{ |
654 |
XFreeFont (DISPLAY, f); |
655 |
f = 0; |
656 |
} |
657 |
} |
658 |
|
659 |
bool |
660 |
rxvt_font_x11::has_codepoint (unicode_t unicode) |
661 |
{ |
662 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
663 |
|
664 |
if (ch == NOCHAR) |
665 |
return false; |
666 |
|
667 |
/* check wether the character exists in _this_ font. horrible. */ |
668 |
XCharStruct *xcs; |
669 |
|
670 |
if (encm) |
671 |
{ |
672 |
unsigned char byte1 = ch >> 8; |
673 |
unsigned char byte2 = ch & 255; |
674 |
|
675 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
676 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
677 |
return false; |
678 |
|
679 |
if (!f->per_char) |
680 |
return true; |
681 |
|
682 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
683 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
684 |
|
685 |
xcs = f->per_char + N; |
686 |
} |
687 |
else |
688 |
{ |
689 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
690 |
return false; |
691 |
|
692 |
if (!f->per_char) |
693 |
return true; |
694 |
|
695 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
696 |
} |
697 |
|
698 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
699 |
&& xcs->ascent == 0 && xcs->descent == 0) |
700 |
return false; |
701 |
|
702 |
return true; |
703 |
} |
704 |
|
705 |
void |
706 |
rxvt_font_x11::draw (rxvt_drawable &d, int x, int y, |
707 |
const text_t *text, int len, |
708 |
int fg, int bg) |
709 |
{ |
710 |
// this looks like a mess /. |
711 |
// and it is a mess /. |
712 |
// yet we are trying to be perfect /. |
713 |
// but the result still isn't perfect /. |
714 |
|
715 |
bool slow = this->slow |
716 |
|| width != r->TermWin.fwidth |
717 |
|| height != r->TermWin.fheight; |
718 |
|
719 |
int base = r->TermWin.fbase; |
720 |
|
721 |
XGCValues v; |
722 |
v.foreground = r->PixColors[fg]; |
723 |
v.background = r->PixColors[bg]; |
724 |
v.font = f->fid; |
725 |
|
726 |
if (enc2b) |
727 |
{ |
728 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
729 |
|
730 |
if (bg == Color_bg && !slow) |
731 |
{ |
732 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
733 |
XDrawImageString16 (d.display->display, d, TGC, x, y + base, xc, len); |
734 |
} |
735 |
else |
736 |
{ |
737 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
738 |
|
739 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
740 |
|
741 |
if (slow) |
742 |
{ |
743 |
do |
744 |
{ |
745 |
if (xc->byte1 || xc->byte2) |
746 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, 1); |
747 |
|
748 |
x += r->TermWin.fwidth; |
749 |
xc++; len--; |
750 |
} |
751 |
while (len); |
752 |
} |
753 |
else |
754 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, len); |
755 |
} |
756 |
} |
757 |
else |
758 |
{ |
759 |
const char *xc = enc_char (text, len, cs, slow); |
760 |
|
761 |
if (bg == Color_bg && !slow) |
762 |
{ |
763 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
764 |
XDrawImageString (d.display->display, d, TGC, x, y + base, xc, len); |
765 |
} |
766 |
else |
767 |
{ |
768 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
769 |
|
770 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
771 |
|
772 |
if (slow) |
773 |
{ |
774 |
do |
775 |
{ |
776 |
if (*xc) |
777 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, 1); |
778 |
|
779 |
x += r->TermWin.fwidth; |
780 |
xc++; len--; |
781 |
} |
782 |
while (len); |
783 |
} |
784 |
else |
785 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, len); |
786 |
} |
787 |
} |
788 |
} |
789 |
|
790 |
///////////////////////////////////////////////////////////////////////////// |
791 |
|
792 |
#if XFT |
793 |
#if 0 |
794 |
#define UNIBITS 21 |
795 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
796 |
#define SWATHBITS 8 |
797 |
#endif |
798 |
|
799 |
struct rxvt_font_xft : rxvt_font { |
800 |
rxvt_font_xft () { f = 0; } |
801 |
|
802 |
void clear (); |
803 |
|
804 |
rxvt_fontprop properties (); |
805 |
|
806 |
bool load (const rxvt_fontprop &prop); |
807 |
|
808 |
void draw (rxvt_drawable &d, int x, int y, |
809 |
const text_t *text, int len, |
810 |
int fg, int bg); |
811 |
|
812 |
bool has_codepoint (unicode_t unicode); |
813 |
|
814 |
protected: |
815 |
XftFont *f; |
816 |
}; |
817 |
|
818 |
void |
819 |
rxvt_font_xft::clear () |
820 |
{ |
821 |
if (f) |
822 |
{ |
823 |
XftFontClose (DISPLAY, f); |
824 |
f = 0; |
825 |
} |
826 |
} |
827 |
|
828 |
rxvt_fontprop |
829 |
rxvt_font_xft::properties () |
830 |
{ |
831 |
rxvt_fontprop p; |
832 |
|
833 |
FT_Face face = XftLockFace (f); |
834 |
|
835 |
p.width = width; p.height = height; |
836 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
837 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC ? rxvt_fontprop::italic : rxvt_fontprop::roman; |
838 |
|
839 |
XftUnlockFace (f); |
840 |
|
841 |
return p; |
842 |
} |
843 |
|
844 |
bool |
845 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
846 |
{ |
847 |
#if 0 |
848 |
for (int i = 0; i < SWATHCOUNT; i++) |
849 |
cvr[i] = 0; |
850 |
#endif |
851 |
|
852 |
clear (); |
853 |
|
854 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
855 |
|
856 |
if (!p) |
857 |
return false; |
858 |
|
859 |
FcValue v; |
860 |
|
861 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
862 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
863 |
|
864 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
865 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
866 |
|
867 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
868 |
// clip width, we can't do better, or can we? |
869 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
870 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop.width); |
871 |
#endif |
872 |
|
873 |
//FcPatternAddBool (p, FC_MINSPACE, 1); |
874 |
|
875 |
XftResult result; |
876 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
877 |
|
878 |
FcPatternDestroy (p); |
879 |
|
880 |
if (!match) |
881 |
return false; |
882 |
|
883 |
f = XftFontOpenPattern (DISPLAY, match); |
884 |
|
885 |
if (!f) |
886 |
{ |
887 |
FcPatternDestroy (match); |
888 |
return false; |
889 |
} |
890 |
|
891 |
FT_Face face = XftLockFace (f); |
892 |
|
893 |
slow = !FT_IS_FIXED_WIDTH (face); |
894 |
|
895 |
int ftheight = 0; |
896 |
|
897 |
for (;;) |
898 |
{ |
899 |
XGlyphInfo g1, g2; |
900 |
FcChar8 c; |
901 |
|
902 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
903 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
904 |
|
905 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
906 |
slow = true; |
907 |
|
908 |
width = g2.xOff; |
909 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
910 |
descent = (-face->size->metrics.descender + 63) >> 6; |
911 |
height = ascent + descent; |
912 |
|
913 |
if (height <= prop.height || !prop.height) |
914 |
break; |
915 |
|
916 |
if (ftheight) |
917 |
{ |
918 |
// take smaller steps near the end |
919 |
if (height > prop.height + 1) ftheight++; |
920 |
if (height > prop.height + 2) ftheight++; |
921 |
if (height > prop.height + 3) ftheight++; |
922 |
|
923 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
924 |
} |
925 |
else |
926 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
927 |
} |
928 |
|
929 |
XftUnlockFace (f); |
930 |
|
931 |
return true; |
932 |
} |
933 |
|
934 |
bool |
935 |
rxvt_font_xft::has_codepoint (unicode_t unicode) |
936 |
{ |
937 |
return XftCharExists (DISPLAY, f, unicode); |
938 |
} |
939 |
|
940 |
void |
941 |
rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, |
942 |
const text_t *text, int len, |
943 |
int fg, int bg) |
944 |
{ |
945 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
946 |
|
947 |
if (!slow && width == r->TermWin.fwidth && 0) |
948 |
{ |
949 |
if (sizeof (text_t) == sizeof (FcChar16)) |
950 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
951 |
else |
952 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
953 |
} |
954 |
else |
955 |
{ |
956 |
while (len) |
957 |
{ |
958 |
if (*text != NOCHAR && *text != ' ') |
959 |
{ |
960 |
int fwidth = r->TermWin.fwidth; |
961 |
if (len >= 2 && text[1] == NOCHAR) |
962 |
fwidth *= 2; |
963 |
|
964 |
XGlyphInfo extents; |
965 |
if (sizeof (text_t) == sizeof (FcChar16)) |
966 |
{ |
967 |
XftTextExtents16 (d.display->display, f, (const FcChar16 *)text, 1, &extents); |
968 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
969 |
y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
970 |
} |
971 |
else |
972 |
{ |
973 |
XGlyphInfo extents; |
974 |
XftTextExtents32 (d.display->display, f, (const FcChar32 *)text, 1, &extents); |
975 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
976 |
y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
977 |
} |
978 |
} |
979 |
|
980 |
x += r->TermWin.fwidth; |
981 |
text++; |
982 |
len--; |
983 |
} |
984 |
} |
985 |
} |
986 |
#endif |
987 |
|
988 |
///////////////////////////////////////////////////////////////////////////// |
989 |
|
990 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
991 |
: r (r) |
992 |
{ |
993 |
clear (); |
994 |
} |
995 |
|
996 |
rxvt_fontset::~rxvt_fontset () |
997 |
{ |
998 |
clear (); |
999 |
} |
1000 |
|
1001 |
void |
1002 |
rxvt_fontset::clear () |
1003 |
{ |
1004 |
for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) |
1005 |
FONT_UNREF (*i); |
1006 |
|
1007 |
fonts.clear (); |
1008 |
base_id = 0; |
1009 |
base_prop.height = 0x7fffffff; |
1010 |
base_prop.weight = rxvt_fontprop::medium; |
1011 |
base_prop.slant = rxvt_fontprop::roman; |
1012 |
|
1013 |
fallback = fallback_fonts; |
1014 |
} |
1015 |
|
1016 |
rxvt_font * |
1017 |
rxvt_fontset::new_font (const char *name, codeset cs) |
1018 |
{ |
1019 |
rxvt_font *f; |
1020 |
|
1021 |
if (!name || !*name) |
1022 |
{ |
1023 |
name = ""; |
1024 |
f = new rxvt_font_default; |
1025 |
} |
1026 |
#if XFT |
1027 |
else if (!strncmp (name, "xft:", 4)) |
1028 |
{ |
1029 |
name += 4; |
1030 |
f = new rxvt_font_xft; |
1031 |
} |
1032 |
#endif |
1033 |
else if (!strncmp (name, "x:", 2)) |
1034 |
{ |
1035 |
name += 2; |
1036 |
f = new rxvt_font_x11; |
1037 |
} |
1038 |
else |
1039 |
f = new rxvt_font_x11; |
1040 |
|
1041 |
f->fs = this; |
1042 |
f->set_term (r); |
1043 |
f->set_name (strdup (name)); |
1044 |
|
1045 |
f->cs = cs; |
1046 |
f->loaded = false; |
1047 |
|
1048 |
return f; |
1049 |
} |
1050 |
|
1051 |
///////////////////////////////////////////////////////////////////////////// |
1052 |
|
1053 |
void |
1054 |
rxvt_fontset::add_fonts (const char *desc) |
1055 |
{ |
1056 |
if (desc) |
1057 |
{ |
1058 |
char buf[512]; |
1059 |
const char *end; |
1060 |
|
1061 |
do |
1062 |
{ |
1063 |
while (*desc <= ' ') desc++; |
1064 |
|
1065 |
if (*desc == '[') |
1066 |
{ |
1067 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
1068 |
|
1069 |
//const char *extra = desc++; // not yet used |
1070 |
|
1071 |
desc = strchr (desc, ']'); |
1072 |
|
1073 |
if (!desc) |
1074 |
{ |
1075 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
1076 |
break; |
1077 |
} |
1078 |
|
1079 |
desc++; |
1080 |
while (*desc <= ' ') desc++; |
1081 |
} |
1082 |
|
1083 |
end = strchr (desc, ','); |
1084 |
if (!end) |
1085 |
end = desc + strlen (desc); |
1086 |
|
1087 |
if (end - desc < 511) |
1088 |
{ |
1089 |
strncpy (buf, desc, end - desc); |
1090 |
buf[end - desc] = 0; |
1091 |
|
1092 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
1093 |
} |
1094 |
|
1095 |
desc = end + 1; |
1096 |
} |
1097 |
while (*end); |
1098 |
} |
1099 |
} |
1100 |
|
1101 |
bool |
1102 |
rxvt_fontset::realize_font (int i) |
1103 |
{ |
1104 |
if (fonts[i]->loaded) |
1105 |
return true; |
1106 |
|
1107 |
fonts[i]->loaded = true; |
1108 |
|
1109 |
if (!fonts[i]->load (base_prop)) |
1110 |
{ |
1111 |
fonts[i]->cs = CS_UNKNOWN; |
1112 |
return false; |
1113 |
} |
1114 |
|
1115 |
return true; |
1116 |
} |
1117 |
|
1118 |
bool |
1119 |
rxvt_fontset::populate (const char *desc) |
1120 |
{ |
1121 |
clear (); |
1122 |
|
1123 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1124 |
realize_font (0); |
1125 |
|
1126 |
add_fonts (desc); |
1127 |
|
1128 |
if (!base_id) |
1129 |
base_id = 1; |
1130 |
|
1131 |
// we currently need a base-font, no matter what |
1132 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1133 |
{ |
1134 |
puts ("unable to load specified font (s), falling back to 'fixed'\n"); |
1135 |
add_fonts ("fixed"); |
1136 |
base_id = fonts.size () - 1; |
1137 |
} |
1138 |
|
1139 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1140 |
return false; |
1141 |
|
1142 |
base_prop = fonts[base_id]->properties (); |
1143 |
|
1144 |
return true; |
1145 |
} |
1146 |
|
1147 |
int |
1148 |
rxvt_fontset::find_font (unicode_t unicode) |
1149 |
{ |
1150 |
for (unsigned int i = 0; i < fonts.size (); i++) |
1151 |
{ |
1152 |
rxvt_font *f = fonts[i]; |
1153 |
|
1154 |
if (!f->loaded) |
1155 |
{ |
1156 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1157 |
goto next_font; |
1158 |
|
1159 |
if (!realize_font (i)) |
1160 |
goto next_font; |
1161 |
} |
1162 |
|
1163 |
if (f->cs != CS_UNKNOWN && f->has_codepoint (unicode)) |
1164 |
return i; |
1165 |
|
1166 |
next_font: |
1167 |
if (i == fonts.size () - 1 && fallback->name) |
1168 |
{ |
1169 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1170 |
fallback++; |
1171 |
i = 0; |
1172 |
} |
1173 |
} |
1174 |
|
1175 |
return 0; /* we must return SOME font */ |
1176 |
} |
1177 |
|
1178 |
|
1179 |
|