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Comparing rxvt-unicode/src/rxvtfont.C (file contents):
Revision 1.160 by sf-exg, Wed Mar 31 21:52:05 2010 UTC vs.
Revision 1.213 by sf-exg, Sat Jun 19 09:13:51 2021 UTC

1/*----------------------------------------------------------------------* 1/*----------------------------------------------------------------------*
2 * File: rxvtfont.C 2 * File: rxvtfont.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * Copyright (c) 2003-2008 Marc Lehmann <pcg@goof.com> 4 * Copyright (c) 2003-2008 Marc Lehmann <schmorp@schmorp.de>
5 * - original version. 5 * - original version.
6 * 6 *
7 * This program is free software; you can redistribute it and/or modify 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 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 9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version. 10 * (at your option) any later version.
11 * 11 *
12 * This program is distributed in the hope that it will be useful, 12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
… …
22#include "../config.h" 22#include "../config.h"
23#include "rxvt.h" 23#include "rxvt.h"
24#include "rxvtutil.h" 24#include "rxvtutil.h"
25#include "rxvtfont.h" 25#include "rxvtfont.h"
26 26
27#include <cstdlib> 27#include <stdlib.h>
28 28
29#include <inttypes.h> 29#include <inttypes.h>
30
31#if XFT
32# include <fontconfig/fontconfig.h>
33#endif
30 34
31#define MAX_OVERLAP_ROMAN (8 + 2) // max. character width in 8ths of the base width 35#define MAX_OVERLAP_ROMAN (8 + 2) // max. character width in 8ths of the base width
32#define MAX_OVERLAP_ITALIC (8 + 3) // max. overlap for italic fonts 36#define MAX_OVERLAP_ITALIC (8 + 3) // max. overlap for italic fonts
33 37
34#define OVERLAP_OK(w,wcw,prop) ((w) <= ( \ 38#define OVERLAP_OK(w,wcw,prop) ((w) <= ( \
35 (prop)->slant >= rxvt_fontprop::italic \ 39 (prop)->slant >= rxvt_fontprop::italic \
36 ? ((prop)->width * (wcw) * MAX_OVERLAP_ITALIC + 7) >> 3 \ 40 ? ((prop)->width * (wcw) * MAX_OVERLAP_ITALIC + 7) >> 3 \
37 : ((prop)->width * (wcw) * MAX_OVERLAP_ROMAN + 7) >> 3 \ 41 : ((prop)->width * (wcw) * MAX_OVERLAP_ROMAN + 7) >> 3 \
38 )) 42 ))
39 43
40const struct rxvt_fallback_font { 44static const struct rxvt_fallback_font {
41 codeset cs; 45 codeset cs;
42 const char *name; 46 const char *name;
43} fallback_fonts[] = { 47} fallback_fonts[] = {
44 { CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" }, 48 { CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" },
45 { CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" }, 49 { CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" },
… …
128 { CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" }, 132 { CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" },
129 { CS_KSC5601_1987_0, "xft::lang=ko:antialias=false" }, 133 { CS_KSC5601_1987_0, "xft::lang=ko:antialias=false" },
130# endif 134# endif
131#endif 135#endif
132 136
133 { CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" },
134 //{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, // this gem of a font has actual dotted circles within the combining character glyphs. 137 //{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, // this gem of a font has actual dotted circles within the combining character glyphs.
135#if XFT 138#if XFT
136 { CS_UNICODE, "xft:Bitstream Vera Sans Mono:antialias=false:autohint=true" }, 139 { CS_UNICODE, "xft:Bitstream Vera Sans Mono:antialias=false:autohint=true" },
137 { CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" }, 140 { CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" },
138 { CS_UNICODE, "xft:Andale Mono:antialias=false:autohint=false" }, 141 { CS_UNICODE, "xft:Andale Mono:antialias=false:autohint=false" },
… …
155 '0', '1', '8', 'a', 'd', 'x', 'm', 'y', 'g', 'W', 'X', '\'', '_', 158 '0', '1', '8', 'a', 'd', 'x', 'm', 'y', 'g', 'W', 'X', '\'', '_',
156 0x00cd, 0x00d5, 0x0114, 0x0177, 0x0643, // ÍÕĔŷﻙ 159 0x00cd, 0x00d5, 0x0114, 0x0177, 0x0643, // ÍÕĔŷﻙ
157 0x304c, 0x672c, // が本 160 0x304c, 0x672c, // が本
158}; 161};
159 162
160#define NUM_EXTENT_TEST_CHARS (sizeof (extent_test_chars) / sizeof (extent_test_chars[0]))
161
162#define dTermDisplay Display *disp = term->dpy 163#define dTermDisplay Display *disp = term->dpy
163#define dTermGC GC gc = term->gc 164#define dTermGC GC gc = term->gc
164 165
165///////////////////////////////////////////////////////////////////////////// 166/////////////////////////////////////////////////////////////////////////////
166 167
… …
238 else if (color >= 0) 239 else if (color >= 0)
239 { 240 {
240#if XFT 241#if XFT
241 Picture dst; 242 Picture dst;
242 243
243# ifdef HAVE_BG_PIXMAP 244# ifdef HAVE_IMG
244 if (term->bgPixmap.pixmap 245 if (term->bg_img
245 && !term->pix_colors[color].is_opaque () 246 && !term->pix_colors[color].is_opaque ()
246 && ((dst = XftDrawPicture (d)))) 247 && ((dst = XftDrawPicture (d))))
247 { 248 {
248 XClearArea (disp, d, x, y, w, h, false); 249 XClearArea (disp, d, x, y, w, h, false);
249 250
… …
261 } 262 }
262} 263}
263 264
264///////////////////////////////////////////////////////////////////////////// 265/////////////////////////////////////////////////////////////////////////////
265 266
266struct rxvt_font_default : rxvt_font { 267struct rxvt_font_default : rxvt_font
268{
267 struct rxvt_fontset *fs; 269 struct rxvt_fontset *fs;
268 270
269 rxvt_font_default (rxvt_fontset *fs) 271 rxvt_font_default (rxvt_fontset *fs)
270 : rxvt_font () 272 : rxvt_font ()
271 { 273 {
… …
311 if (unicode >= 0x2500 && unicode <= 0x259f && 313 if (unicode >= 0x2500 && unicode <= 0x259f &&
312 !term->option (Opt_skipBuiltinGlyphs)) 314 !term->option (Opt_skipBuiltinGlyphs))
313 return true; 315 return true;
314#endif 316#endif
315 317
316 if (IS_COMPOSE (unicode)) 318 // we do not check for IS_COMPOSE here, as this would
317 return true; 319 // rob other fonts from taking over.
318 320
319 switch (unicode) 321 switch (unicode)
320 { 322 {
321 case ZERO_WIDTH_CHAR: 323 case ZERO_WIDTH_CHAR:
322 case NOCHAR: 324 case NOCHAR:
… …
343 345
344 XSetForeground (disp, gc, term->pix_colors[fg]); 346 XSetForeground (disp, gc, term->pix_colors[fg]);
345 347
346 while (len) 348 while (len)
347 { 349 {
350 const text_t *tp = text;
351 text_t t = *tp;
352
353 while (++text, --len && *text == NOCHAR)
354 ;
355
348#if ENABLE_COMBINING 356#if ENABLE_COMBINING
349 compose_char *cc; 357 compose_char *cc;
350#endif 358#endif
351 const text_t *tp = text;
352 text_t t = *tp;
353
354 while (++text, --len && *text == NOCHAR)
355 ;
356
357 int width = text - tp; 359 int width = text - tp;
358 int fwidth = term->fwidth * width; 360 int fwidth = term->fwidth * width;
359 361
360#ifdef BUILTIN_GLYPHS 362#ifdef BUILTIN_GLYPHS
361 if (0x2500 <= t && t <= 0x259f) 363 if (0x2500 <= t && t <= 0x259f)
… …
443#endif 445#endif
444#if ENABLE_COMBINING 446#if ENABLE_COMBINING
445 else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) 447 else if (IS_COMPOSE (t) && (cc = rxvt_composite[t]))
446 { 448 {
447 min_it (width, 2); // we only support wcwidth up to 2 449 min_it (width, 2); // we only support wcwidth up to 2
448
449 text_t chrs[2]; 450 text_t chrs[2];
450 chrs [1] = NOCHAR; 451 chrs [1] = NOCHAR;
451 452
452 *chrs = cc->c1; 453 *chrs = cc->c1;
453 rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)]; 454 rxvt_font *f1 = (*fs)[fs->find_font_idx (cc->c1)];
454 f1->draw (d, x, y, chrs, width, fg, bg); 455 f1->draw (d, x, y, chrs, width, fg, bg);
455 456
456 if (cc->c2 != NOCHAR) 457 if (cc->c2 != NOCHAR)
457 { 458 {
458 bool careful; 459 bool careful;
459 460
460 // prefer font of first character, for no good reasons 461 // prefer font of first character, for no good reasons
461 *chrs = cc->c2; 462 *chrs = cc->c2;
462 rxvt_font *f2 = (f1->has_char (cc->c2, 0, careful) && !careful) 463 rxvt_font *f2 = (f1->has_char (cc->c2, 0, careful) && !careful)
463 ? f1 464 ? f1
464 : (*fs)[fs->find_font (cc->c2)]; 465 : (*fs)[fs->find_font_idx (cc->c2)];
465 466
466 f2->draw (d, x, y, chrs, width, fg, Color_none); 467 f2->draw (d, x, y, chrs, width, fg, Color_none);
467 } 468 }
468 } 469 }
469#endif 470#endif
… …
473 case '\t': 474 case '\t':
474 case ZERO_WIDTH_CHAR: 475 case ZERO_WIDTH_CHAR:
475 case NOCHAR: 476 case NOCHAR:
476 break; 477 break;
477 478
479 /*
480 * If the base font does not support variation selectors, treat them as ZWC.
481 * a point could be made to do this for all wcwidth == 0 characters, but I
482 * decided against that until more data is available.
483 */
484 case 0xfe00: case 0xfe01: case 0xfe02: case 0xfe03: case 0xfe04: case 0xfe05: case 0xfe06: case 0xfe07:
485 case 0xfe08: case 0xfe09: case 0xfe0a: case 0xfe0b: case 0xfe0c: case 0xfe0d: case 0xfe0e: case 0xfe0f:
486 break;
487
478 default: 488 default:
479 XDrawRectangle (disp, d, gc, x + 2, y + 2, 489 XDrawRectangle (disp, d, gc, x + 2, y + 2,
480 fwidth - 4, term->fheight - 4); 490 fwidth - 4, term->fheight - 4);
481 } 491 }
482 492
483 x += fwidth; 493 x += fwidth;
484 } 494 }
485} 495}
486 496
487struct rxvt_font_meta : rxvt_font { 497struct rxvt_font_overflow : rxvt_font
498{
488 struct rxvt_fontset *fs; 499 struct rxvt_fontset *fs;
489 500
490 rxvt_font_meta (rxvt_fontset *fs) 501 rxvt_font_overflow (rxvt_fontset *fs)
491 : rxvt_font () 502 : rxvt_font ()
492 { 503 {
493 this->fs = fs; 504 this->fs = fs;
494 } 505 }
495 506
… …
508 bool load (const rxvt_fontprop &prop, bool force_prop) 519 bool load (const rxvt_fontprop &prop, bool force_prop)
509 { 520 {
510 width = 1; height = 1; 521 width = 1; height = 1;
511 ascent = 1; descent = 0; 522 ascent = 1; descent = 0;
512 523
513 set_name (strdup ("built-in meta font")); 524 set_name (strdup ("built-in rendition overflow font"));
514 525
515 return true; 526 return true;
516 } 527 }
517 528
518 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const 529 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const
… …
522 533
523 void draw (rxvt_drawable &d, int x, int y, 534 void draw (rxvt_drawable &d, int x, int y,
524 const text_t *text, int len, 535 const text_t *text, int len,
525 int fg, int bg) 536 int fg, int bg)
526 { 537 {
527 while (len--) 538 while (len)
528 { 539 {
529 int fid = fs->find_font_idx (*text); 540 int fid = fs->find_font_idx (*text);
541 int w = 1;
542 while (w < len && text[w] == NOCHAR)
543 w++;
530 (*fs)[fid]->draw (d, x, y, text, 1, fg, bg); 544 (*fs)[fid]->draw (d, x, y, text, w, fg, bg);
531 ++text; 545 text += w;
546 len -= w;
532 x += term->fwidth; 547 x += term->fwidth * w;
533 } 548 }
534 } 549 }
535}; 550};
536 551
537///////////////////////////////////////////////////////////////////////////// 552/////////////////////////////////////////////////////////////////////////////
538 553
539struct rxvt_font_x11 : rxvt_font { 554struct rxvt_font_x11 : rxvt_font
555{
540 rxvt_font_x11 () { f = 0; } 556 rxvt_font_x11 () { f = 0; }
541 557
542 void clear (); 558 void clear ();
543 559
544 rxvt_fontprop properties (); 560 rxvt_fontprop properties ();
… …
716 f = XLoadQueryFont (disp, name); 732 f = XLoadQueryFont (disp, name);
717 733
718 if (!f) 734 if (!f)
719 return false; 735 return false;
720 736
721 char *new_name = get_property (f, XA_FONT, name); 737 char *new_name = get_property (f, XA_FONT, 0);
722 738
723 if (new_name) 739 if (new_name)
724 set_name (new_name); 740 set_name (new_name);
725 else 741 else
726 rxvt_warn ("font '%s' has no FONT property, continuing without.", name); 742 rxvt_warn ("font '%s' has no FONT property, continuing without.\n", name);
727 743
728 XFreeFont (disp, f); 744 XFreeFont (disp, f);
729 f = 0; 745 f = 0;
730 } 746 }
731 747
… …
788 free (fname); 804 free (fname);
789 if (replace_field (&fname, list[i], 11, '0', "0")) 805 if (replace_field (&fname, list[i], 11, '0', "0"))
790 diff += 300; // more heavily penalize what looks like scaled bitmap fonts 806 diff += 300; // more heavily penalize what looks like scaled bitmap fonts
791 } 807 }
792 808
793 if (!set_properties (p, fname)) 809 if (!set_properties (p, fname)
810 // also weed out too large fonts
811 || (prop.height != rxvt_fontprop::unset
812 && p.height > prop.height))
813 {
814 free (fname);
794 continue; 815 continue;
795 816 }
796 if (prop.height != rxvt_fontprop::unset
797 && p.height > prop.height) // weed out too large fonts
798 continue;
799 817
800 if (prop.height != rxvt_fontprop::unset) diff += (prop.height - p.height) * 128; 818 if (prop.height != rxvt_fontprop::unset) diff += (prop.height - p.height) * 128;
801 if (prop.weight != rxvt_fontprop::unset) diff += abs (prop.weight - p.weight); 819 if (prop.weight != rxvt_fontprop::unset) diff += abs (prop.weight - p.weight);
802 if (prop.slant != rxvt_fontprop::unset) diff += abs (prop.slant - p.slant); 820 if (prop.slant != rxvt_fontprop::unset) diff += abs (prop.slant - p.slant);
803 //if (prop.width != rxvt_fontprop::unset) diff += abs (prop.width - p.width); 821 //if (prop.width != rxvt_fontprop::unset) diff += abs (prop.width - p.width);
… …
809 XFreeFontNames (list); 827 XFreeFontNames (list);
810 828
811 // this loop only iterates when the guessed font-size is too small 829 // this loop only iterates when the guessed font-size is too small
812 for (;;) 830 for (;;)
813 { 831 {
814 font_weight *best = fonts + count - 1; 832 font_weight *best = fonts;
815 833
816 for (font_weight *w = best; w-- > fonts; ) 834 for (font_weight *w = fonts + 1; w < fonts + count; w++)
817 if (w->diff <= best->diff) 835 if (w->diff < best->diff)
818 best = w; 836 best = w;
819 837
820 if (!best->name 838 if (!best->name
821 || !(f = XLoadQueryFont (disp, best->name))) 839 || !(f = XLoadQueryFont (disp, best->name)))
822 break; 840 break;
… …
860 free (registry); 878 free (registry);
861 free (encoding); 879 free (encoding);
862 880
863 if (cs == CS_UNKNOWN) 881 if (cs == CS_UNKNOWN)
864 { 882 {
865 const char *charset = get_property (f, XA_FONT, 0); 883 char *value = get_property (f, XA_FONT, 0);
884 const char *charset = value;
866 885
867 if (!charset) 886 if (!charset)
868 charset = name; 887 charset = name;
869 888
870 int count = 13; 889 int count = 13;
… …
873 break; 892 break;
874 893
875 cs = codeset_from_name (charset); 894 cs = codeset_from_name (charset);
876 if (cs == CS_UNKNOWN) 895 if (cs == CS_UNKNOWN)
877 rxvt_warn ("%s: cannot deduce encoding from font name property \"%s\", ignoring font.\n", name, charset); 896 rxvt_warn ("%s: cannot deduce encoding from font name property \"%s\", ignoring font.\n", name, charset);
897
898 free (value);
878 } 899 }
879 900
880 if (cs == CS_UNKNOWN) 901 if (cs == CS_UNKNOWN)
881 { 902 {
882 clear (); 903 clear ();
… …
914 } 935 }
915#endif 936#endif
916 937
917 width = 1; 938 width = 1;
918 939
919 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) 940 for (uint16_t *t = extent_test_chars; t < extent_test_chars + ecb_array_length (extent_test_chars); t++)
920 { 941 {
921 if (FROM_UNICODE (cs, *t) == NOCHAR) 942 if (FROM_UNICODE (cs, *t) == NOCHAR)
922 continue; 943 continue;
923 944
924 // ignore characters we wouldn't use anyways 945 // ignore characters we wouldn't use anyways
925 bool careful; 946 bool careful;
926 if (!has_char (*t, &prop, careful)) 947 if (!has_char (*t, &prop, careful))
927 continue; 948 continue;
928 949
929 XChar2b ch = { *t >> 8, *t }; 950 // the casts are needed in C++11 (see 8.5.1)
951 XChar2b ch = { (unsigned char)(*t >> 8), (unsigned char)*t };
930 952
931 XCharStruct g; 953 XCharStruct g;
932 int dir_ret, asc_ret, des_ret; 954 int dir_ret, asc_ret, des_ret;
933 XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g); 955 XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g);
934 956
… …
960} 982}
961 983
962bool 984bool
963rxvt_font_x11::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const 985rxvt_font_x11::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const
964{ 986{
987 careful = false;
988
965 uint32_t ch = FROM_UNICODE (cs, unicode); 989 uint32_t ch = FROM_UNICODE (cs, unicode);
966 990
967 if (ch == NOCHAR) 991 if (ch == NOCHAR)
968 return false; 992 return false;
969 993
… …
1032 dTermDisplay; 1056 dTermDisplay;
1033 dTermGC; 1057 dTermGC;
1034 1058
1035 bool slow = this->slow 1059 bool slow = this->slow
1036 || width != term->fwidth 1060 || width != term->fwidth
1037 || height != term->fheight; 1061 || height != term->fheight
1062 || ascent != f->ascent;
1038 1063
1039 int base = ascent; // sorry, incorrect: term->fbase; 1064 int base = ascent; // sorry, incorrect: term->fbase;
1040 1065
1041 XGCValues v; 1066 XGCValues v;
1042 v.foreground = term->pix_colors[fg]; 1067 v.foreground = term->pix_colors[fg];
… …
1110 1135
1111///////////////////////////////////////////////////////////////////////////// 1136/////////////////////////////////////////////////////////////////////////////
1112 1137
1113#if XFT 1138#if XFT
1114 1139
1115struct rxvt_font_xft : rxvt_font { 1140struct rxvt_font_xft : rxvt_font
1141{
1116 rxvt_font_xft () { f = 0; } 1142 rxvt_font_xft ()
1143 {
1144 f = 0;
1145 }
1117 1146
1118 void clear (); 1147 void clear ();
1119 1148
1120 rxvt_fontprop properties (); 1149 rxvt_fontprop properties ();
1121 1150
… …
1211 int ftheight = 0; 1240 int ftheight = 0;
1212 bool success = true; 1241 bool success = true;
1213 1242
1214 for (;;) 1243 for (;;)
1215 { 1244 {
1245 p = FcPatternDuplicate (match);
1216 f = XftFontOpenPattern (disp, FcPatternDuplicate (match)); 1246 f = XftFontOpenPattern (disp, p);
1217 1247
1218 if (!f) 1248 if (!f)
1219 { 1249 {
1250 FcPatternDestroy (p);
1220 success = false; 1251 success = false;
1221 break; 1252 break;
1222 } 1253 }
1223 1254
1224 FT_Face face = XftLockFace (f); 1255 FT_Face face = XftLockFace (f);
… …
1232 1263
1233 XftUnlockFace (f); 1264 XftUnlockFace (f);
1234 1265
1235 int glheight = height; 1266 int glheight = height;
1236 1267
1237 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) 1268 for (uint16_t *t = extent_test_chars; t < extent_test_chars + ecb_array_length (extent_test_chars); t++)
1238 { 1269 {
1239 FcChar16 ch = *t; 1270 FcChar16 ch = *t;
1240 1271
1241 if (cs != CS_UNICODE 1272 if (cs != CS_UNICODE
1242 && ch > 0x100 1273 && ch > 0x100
… …
1261 if (glheight < g.height - g.y) glheight = g.height - g.y; 1292 if (glheight < g.height - g.y) glheight = g.height - g.y;
1262 } 1293 }
1263 1294
1264 if (!width) 1295 if (!width)
1265 { 1296 {
1266 rxvt_warn ("unable to calculate font width for '%s', ignoring.\n", name); 1297 rxvt_warn ("unable to calculate font width for '%s', using max_advance_width.\n", name);
1267 1298 width = f->max_advance_width;
1268 XftFontClose (disp, f);
1269 f = 0;
1270
1271 success = false;
1272 break; 1299 break;
1273 } 1300 }
1274 1301
1275 if (prop.height == rxvt_fontprop::unset 1302 if (prop.height == rxvt_fontprop::unset
1276 || (height <= prop.height && glheight <= prop.height) 1303 || (height <= prop.height && glheight <= prop.height)
… …
1311bool 1338bool
1312rxvt_font_xft::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const 1339rxvt_font_xft::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const
1313{ 1340{
1314 careful = false; 1341 careful = false;
1315 1342
1343 // handle non-bmp chars when text_t is 16 bit
1344#if ENABLE_COMBINING && !UNICODE_3
1345 if (ecb_expect_false (IS_COMPOSE (unicode)))
1346 if (compose_char *cc = rxvt_composite [unicode])
1347 if (cc->c2 == NOCHAR)
1348 unicode = cc->c1;
1349 else
1350 return false;
1351 else
1352 return false;
1353#endif
1354
1355 FcChar32 chr = unicode;
1356
1316 if (!XftCharExists (term->dpy, f, unicode)) 1357 if (!XftCharExists (term->dpy, f, chr))
1317 return false; 1358 return false;
1318 1359
1319 if (!prop || prop->width == rxvt_fontprop::unset) 1360 if (!prop || prop->width == rxvt_fontprop::unset)
1320 return true; 1361 return true;
1321 1362
1322 // check character against base font bounding box 1363 int wcw = max (WCWIDTH (chr), 1);
1323 FcChar32 ch = unicode; 1364
1324 XGlyphInfo g; 1365 XGlyphInfo g;
1325 XftTextExtents32 (term->dpy, f, &ch, 1, &g); 1366 XftTextExtents32 (term->dpy, f, &chr, 1, &g);
1326 1367
1327 int w = g.width - g.x; 1368 int w = g.width - g.x;
1328 int wcw = max (WCWIDTH (unicode), 1);
1329 1369
1330 careful = g.x > 0 || w > prop->width * wcw; 1370 careful = g.x > 0 || w > prop->width * wcw;
1331 1371
1332 if (careful && !OVERLAP_OK (w, wcw, prop)) 1372 if (careful && !OVERLAP_OK (w, wcw, prop))
1333 return false; 1373 return false;
… …
1342void 1382void
1343rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, 1383rxvt_font_xft::draw (rxvt_drawable &d, int x, int y,
1344 const text_t *text, int len, 1384 const text_t *text, int len,
1345 int fg, int bg) 1385 int fg, int bg)
1346{ 1386{
1347 XGlyphInfo extents;
1348 XftGlyphSpec *enc = rxvt_temp_buf<XftGlyphSpec> (len); 1387 XftGlyphSpec *enc = rxvt_temp_buf<XftGlyphSpec> (len);
1349 XftGlyphSpec *ep = enc; 1388 XftGlyphSpec *ep = enc;
1350 1389
1351 dTermDisplay; 1390 dTermDisplay;
1352 dTermGC; 1391 dTermGC;
… …
1365 int y_ = buffered ? 0 : y; 1404 int y_ = buffered ? 0 : y;
1366 1405
1367 while (len) 1406 while (len)
1368 { 1407 {
1369 int cwidth = term->fwidth; 1408 int cwidth = term->fwidth;
1370 FcChar32 fc = *text++; len--; 1409 FcChar32 chr = *text++; len--;
1410
1411 // handle non-bmp chars when text_t is 16 bit
1412 #if ENABLE_COMBINING && !UNICODE_3
1413 if (ecb_expect_false (IS_COMPOSE (chr)))
1414 if (compose_char *cc = rxvt_composite [chr])
1415 if (cc->c2 == NOCHAR)
1416 chr = cc->c1;
1417 #endif
1371 1418
1372 while (len && *text == NOCHAR) 1419 while (len && *text == NOCHAR)
1373 text++, len--, cwidth += term->fwidth; 1420 text++, len--, cwidth += term->fwidth;
1374 1421
1375 if (fc != ' ') // skip spaces 1422 if (chr != ' ') // skip spaces
1423 {
1424 #if 0
1425 FT_UInt glyphs [decltype (exp)::max_size];
1426
1427 for (int i = 0; i < nchrs; ++i)
1428 glyphs [i] = XftCharIndex (disp, f, chrs [i]);
1429
1430 for (int i = 0; i < nchrs; ++i)
1376 { 1431 {
1432 XGlyphInfo ep;
1433 XftGlyphExtents (disp, f, glyphs+i, 1, &ep);
1434 printf ("gs %4x g %4x + %3d,%3d o %3d,%3d wh %3d,%3d\n", chrs[i],glyphs[i],ep.x,ep.y,ep.xOff,ep.yOff,ep.width,ep.height);
1435 }
1436 #endif
1437
1377 FT_UInt glyph = XftCharIndex (disp, f, fc); 1438 FT_UInt glyph = XftCharIndex (disp, f, chr);
1439 XGlyphInfo extents;
1378 XftGlyphExtents (disp, f, &glyph, 1, &extents); 1440 XftGlyphExtents (disp, f, &glyph, 1, &extents);
1379 1441
1380 ep->glyph = glyph; 1442 ep->glyph = glyph;
1381 ep->x = x_ + (cwidth - extents.xOff >> 1); 1443 ep->x = x_;
1382 ep->y = y_ + ascent; 1444 ep->y = y_ + ascent;
1383 1445
1384 if (extents.xOff == 0) 1446 // the xft font cell might differ from the terminal font cell,
1385 ep->x = x_ + cwidth; 1447 // in which case we use the average between the two.
1448 ep->x += cwidth - extents.xOff >> 1;
1386 1449
1450 // xft/freetype represent combining characters as characters with zero
1451 // width rendered over the previous character with some fonts, while
1452 // in other fonts, they are considered normal characters, while yet
1453 // in other fonts, they are shifted all over the place.
1454 // we handle the first two cases by keying off on xOff being 0
1455 // for zero-width chars. normally, we would add extents.xOff
1456 // of the base character here, but we don't have that, so we use cwidth.
1457 ep->x += extents.xOff ? 0 : cwidth;
1458
1387 ep++; 1459 ++ep;
1388 } 1460 }
1389 1461
1390 x_ += cwidth; 1462 x_ += cwidth;
1391 } 1463 }
1392 1464
… …
1394 { 1466 {
1395 if (ep != enc) 1467 if (ep != enc)
1396 { 1468 {
1397 rxvt_drawable &d2 = d.screen->scratch_drawable (w, h); 1469 rxvt_drawable &d2 = d.screen->scratch_drawable (w, h);
1398 1470
1399#ifdef HAVE_BG_PIXMAP 1471#ifdef HAVE_IMG
1400 Picture dst = 0; // the only assignment is done conditionally in the following if condition 1472 Picture dst = 0; // the only assignment is done conditionally in the following if condition
1401 1473
1402 if (term->bgPixmap.pixmap 1474 if (term->bg_img
1403 && (bg == Color_transparent || bg == Color_bg 1475 && (bg == Color_transparent || bg == Color_bg
1404 || (bg >= 0 && !term->pix_colors[bg].is_opaque () && ((dst = XftDrawPicture (d2)))))) 1476 || (bg >= 0 && !term->pix_colors[bg].is_opaque () && ((dst = XftDrawPicture (d2))))))
1405 { 1477 {
1406 int src_x = x, src_y = y; 1478 int src_x = x, src_y = y;
1407 1479
1408 if (term->bgPixmap.is_parentOrigin ()) 1480 if (term->bg_flags & rxvt_term::BG_IS_TRANSPARENT)
1409 { 1481 {
1410 src_x += term->window_vt_x; 1482 src_x += term->window_vt_x;
1411 src_y += term->window_vt_y; 1483 src_y += term->window_vt_y;
1412 } 1484 }
1413 1485
1414 if (term->bgPixmap.pmap_width >= src_x + w 1486 if (term->bg_img->w >= src_x + w
1415 && term->bgPixmap.pmap_height >= src_y + h) 1487 && term->bg_img->h >= src_y + h)
1416 { 1488 {
1417 XCopyArea (disp, term->bgPixmap.pixmap, d2, gc, 1489 XCopyArea (disp, term->bg_img->pm, d2, gc,
1418 src_x, src_y, w, h, 0, 0); 1490 src_x, src_y, w, h, 0, 0);
1419 } 1491 }
1420 else 1492 else
1421 { 1493 {
1422 XGCValues gcv; 1494 XGCValues gcv;
1423 1495
1424 gcv.fill_style = FillTiled; 1496 gcv.fill_style = FillTiled;
1425 gcv.tile = term->bgPixmap.pixmap; 1497 gcv.tile = term->bg_img->pm;
1426 gcv.ts_x_origin = -src_x; 1498 gcv.ts_x_origin = -src_x;
1427 gcv.ts_y_origin = -src_y; 1499 gcv.ts_y_origin = -src_y;
1428 1500
1429 XChangeGC (disp, gc, 1501 XChangeGC (disp, gc,
1430 GCTile | GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle, 1502 GCTile | GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle,
… …
1482 prop.width = prop.height = prop.ascent = prop.weight = prop.slant 1554 prop.width = prop.height = prop.ascent = prop.weight = prop.slant
1483 = rxvt_fontprop::unset; 1555 = rxvt_fontprop::unset;
1484 force_prop = false; 1556 force_prop = false;
1485 1557
1486 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) 1558 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++)
1487 FONT_UNREF (*i); 1559 (*i)->unref ();
1488 1560
1489 for (pagemap **p = fmap.begin (); p != fmap.end (); p++) 1561 for (pagemap **p = fmap.begin (); p != fmap.end (); p++)
1490 delete *p; 1562 delete *p;
1491 1563
1492 free (fontdesc); fontdesc = 0; 1564 free (fontdesc); fontdesc = 0;
… …
1494 fonts.clear (); 1566 fonts.clear ();
1495 1567
1496 fallback = fallback_fonts; 1568 fallback = fallback_fonts;
1497} 1569}
1498 1570
1571void
1572rxvt_fontset::prepare_font (rxvt_font *font, codeset cs)
1573{
1574 font->set_term (term);
1575
1576 font->cs = cs;
1577 font->loaded = false;
1578}
1579
1499rxvt_font * 1580rxvt_font *
1500rxvt_fontset::new_font (const char *name, codeset cs) 1581rxvt_fontset::new_font (const char *name, codeset cs)
1501{ 1582{
1502 rxvt_font *f; 1583 rxvt_font *f;
1503 1584
… …
1519 f = new rxvt_font_x11; 1600 f = new rxvt_font_x11;
1520 } 1601 }
1521 else 1602 else
1522 f = new rxvt_font_x11; 1603 f = new rxvt_font_x11;
1523 1604
1524 f->set_term (term);
1525 f->set_name (strdup (name)); 1605 f->set_name (strdup (name));
1526 1606 prepare_font (f, cs);
1527 f->cs = cs;
1528 f->loaded = false;
1529 1607
1530 return f; 1608 return f;
1531} 1609}
1532 1610
1533///////////////////////////////////////////////////////////////////////////// 1611/////////////////////////////////////////////////////////////////////////////
1612
1613void
1614rxvt_fontset::push_font (rxvt_font *font)
1615{
1616 // the fontCount index is reserved for the overflow font, it is only
1617 // necessary when we get fontCount or more fonts, as they cannot be
1618 // represented in the rendition.
1619 if (fonts.size () == fontCount)
1620 {
1621 rxvt_font *f = new rxvt_font_overflow (this);
1622
1623 prepare_font (f, CS_UNICODE);
1624 fonts.push_back (f);
1625 }
1626
1627 fonts.push_back (font);
1628}
1534 1629
1535void 1630void
1536rxvt_fontset::add_fonts (const char *desc) 1631rxvt_fontset::add_fonts (const char *desc)
1537{ 1632{
1538 if (desc) 1633 if (desc)
… …
1567 cs = codeset_from_name (spec + sizeof ("codeset=") - 1); 1662 cs = codeset_from_name (spec + sizeof ("codeset=") - 1);
1568 else 1663 else
1569 rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec); 1664 rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec);
1570 1665
1571 desc++; 1666 desc++;
1572 while (*desc <= ' ') desc++; 1667 while (*desc <= ' ' && *desc) desc++;
1573 } 1668 }
1574 1669
1575 end = strchr (desc, ','); 1670 end = strchr (desc, ',');
1576 if (!end) 1671 if (!end)
1577 end = desc + strlen (desc); 1672 end = desc + strlen (desc);
… …
1579 if (end - desc < 511) 1674 if (end - desc < 511)
1580 { 1675 {
1581 memcpy (buf, desc, end - desc); 1676 memcpy (buf, desc, end - desc);
1582 buf[end - desc] = 0; 1677 buf[end - desc] = 0;
1583 1678
1584 fonts.push_back (new_font (buf, cs)); 1679 push_font (new_font (buf, cs));
1585 } 1680 }
1586 else 1681 else
1587 rxvt_warn ("fontset element too long (>511 bytes), ignored."); 1682 rxvt_warn ("fontset element too long (>511 bytes), ignored.\n");
1588 1683
1589 desc = end + 1; 1684 desc = end + 1;
1590 } 1685 }
1591 while (*end); 1686 while (*end);
1592 } 1687 }
… …
1617{ 1712{
1618 clear (); 1713 clear ();
1619 1714
1620 fontdesc = strdup (desc); 1715 fontdesc = strdup (desc);
1621 1716
1622 fonts.push_back (new_font (0, CS_UNICODE)); 1717 push_font (new_font (0, CS_UNICODE));
1623 realize_font (0); 1718 realize_font (0);
1624 1719
1625 add_fonts (desc); 1720 add_fonts (desc);
1626 1721
1627 return true; 1722 return true;
… …
1638} 1733}
1639 1734
1640int 1735int
1641rxvt_fontset::find_font_idx (unicode_t unicode) 1736rxvt_fontset::find_font_idx (unicode_t unicode)
1642{ 1737{
1643 if (unicode >= 1<<20) 1738 // this limits fmap size. it has to accommodate COMPOSE_HI when UNICODE_3
1739 if (unicode > 0x1fffff)
1644 return 0; 1740 return 0;
1645 1741
1646 unicode_t hi = unicode >> 8; 1742 unicode_t hi = unicode >> 8;
1647 1743
1648 if (hi < fmap.size () 1744 if (hi < fmap.size ())
1649 && fmap[hi] 1745 if (pagemap *pm = fmap[hi])
1650 && (*fmap[hi])[unicode & 0xff] != 0xff) 1746 if ((*pm)[unicode & 0xff] != 0xff)
1651 return (*fmap[hi])[unicode & 0xff]; 1747 return (*pm)[unicode & 0xff];
1652 1748
1653 unsigned int i; 1749 unsigned int i;
1654 1750
1655 for (i = 0; i < fonts.size (); i++) 1751 for (i = 0; i < fonts.size (); i++)
1656 { 1752 {
… …
1672 goto next_font; 1768 goto next_font;
1673 1769
1674 bool careful; 1770 bool careful;
1675 if (f->has_char (unicode, &prop, careful)) 1771 if (f->has_char (unicode, &prop, careful))
1676 { 1772 {
1677 if (careful) 1773 i = (i << 1) | careful;
1678 i |= 128;
1679 1774
1680 goto found; 1775 goto found;
1681 } 1776 }
1682 1777
1683 next_font: 1778 next_font:
1684 if (i == fonts.size () - 1) 1779 if (i == fonts.size () - 1)
1685 { 1780 {
1781 // compose characters are handled by the default font, unless another font takes over
1782 // we do not go via the fallback list for speed reasons.
1783 if (IS_COMPOSE (unicode))
1784 return 0;
1785
1686 if (fallback->name) 1786 if (fallback->name)
1687 { 1787 {
1688 // search through the fallback list 1788 // search through the fallback list
1689 fonts.push_back (new_font (fallback->name, fallback->cs)); 1789 push_font (new_font (fallback->name, fallback->cs));
1690 fallback++; 1790 fallback++;
1691 } 1791 }
1692 else 1792 else
1693 { 1793 {
1694 // try to find a new font. 1794 // try to find a new font.
… …
1696 // way to configure this and xft is easier to hack in, 1796 // way to configure this and xft is easier to hack in,
1697 // while x11 has more framework in place already. 1797 // while x11 has more framework in place already.
1698 // TODO: this is a real resource hog, xft takes ages(?) 1798 // TODO: this is a real resource hog, xft takes ages(?)
1699#if XFT && USE_SLOW_LOOKUP 1799#if XFT && USE_SLOW_LOOKUP
1700 // grab the first xft font that seems suitable 1800 // grab the first xft font that seems suitable
1801 // TOOD: should go first for cellchar (spacing 110) then mono, then else
1701 FcPattern *p = FcPatternCreate (); 1802 FcPattern *p = FcPatternCreate ();
1702 1803
1703 FcCharSet *s = FcCharSetCreate (); 1804 FcCharSet *s = FcCharSetCreate ();
1704 FcCharSetAddChar (s, unicode); 1805 FcCharSetAddChar (s, unicode);
1705 FcPatternAddCharSet (p, FC_CHARSET, s); 1806 FcPatternAddCharSet (p, FC_CHARSET, s);
… …
1727 if (find_font (font) < 0) 1828 if (find_font (font) < 0)
1728 { 1829 {
1729 char fontname[4096]; 1830 char fontname[4096];
1730 snprintf (fontname, sizeof (fontname), "xft:%s", font); 1831 snprintf (fontname, sizeof (fontname), "xft:%s", font);
1731 1832
1732 fonts.push_back (new_font (fontname, CS_UNICODE)); 1833 push_font (new_font (fontname, CS_UNICODE));
1733 } 1834 }
1734 1835
1735 free (font); 1836 free (font);
1736 } 1837 }
1737#endif 1838#endif
… …
1749 while (hi >= fmap.size ()) 1850 while (hi >= fmap.size ())
1750 fmap.push_back (0); 1851 fmap.push_back (0);
1751 1852
1752 if (!fmap[hi]) 1853 if (!fmap[hi])
1753 { 1854 {
1754 fmap[hi] = (pagemap *)new pagemap; 1855 fmap[hi] = new pagemap;
1755 memset (fmap[hi], 0xff, sizeof (pagemap)); 1856 memset (fmap[hi], 0xff, sizeof (pagemap));
1756 } 1857 }
1757 1858
1758 (*fmap[hi])[unicode & 0xff] = i; 1859 (*fmap[hi])[unicode & 0xff] = i;
1759 } 1860 }
1760 1861
1761 return i; 1862 return i;
1762} 1863}
1763 1864
1764int
1765rxvt_fontset::find_font (unicode_t unicode)
1766{
1767 int id = find_font_idx (unicode);
1768
1769 return min<int> (fontCount, id & 127) | (id & 128 ? Careful : 0);
1770}

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