ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/src/rxvtfont.C
(Generate patch)

Comparing rxvt-unicode/src/rxvtfont.C (file contents):
Revision 1.157 by root, Tue Mar 30 23:38:02 2010 UTC vs.
Revision 1.212 by root, Sat Jun 19 09:10:51 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->get (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->get (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
497struct rxvt_font_overflow : rxvt_font
498{
499 struct rxvt_fontset *fs;
500
501 rxvt_font_overflow (rxvt_fontset *fs)
502 : rxvt_font ()
503 {
504 this->fs = fs;
505 }
506
507 rxvt_fontprop properties ()
508 {
509 rxvt_fontprop p;
510
511 p.width = p.height = 1;
512 p.ascent = rxvt_fontprop::unset;
513 p.weight = rxvt_fontprop::medium;
514 p.slant = rxvt_fontprop::roman;
515
516 return p;
517 }
518
519 bool load (const rxvt_fontprop &prop, bool force_prop)
520 {
521 width = 1; height = 1;
522 ascent = 1; descent = 0;
523
524 set_name (strdup ("built-in rendition overflow font"));
525
526 return true;
527 }
528
529 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const
530 {
531 return false;
532 }
533
534 void draw (rxvt_drawable &d, int x, int y,
535 const text_t *text, int len,
536 int fg, int bg)
537 {
538 while (len)
539 {
540 int fid = fs->find_font_idx (*text);
541 int w = 1;
542 while (w < len && text[w] == NOCHAR)
543 w++;
544 (*fs)[fid]->draw (d, x, y, text, w, fg, bg);
545 text += w;
546 len -= w;
547 x += term->fwidth * w;
548 }
549 }
550};
551
487///////////////////////////////////////////////////////////////////////////// 552/////////////////////////////////////////////////////////////////////////////
488 553
489struct rxvt_font_x11 : rxvt_font { 554struct rxvt_font_x11 : rxvt_font
555{
490 rxvt_font_x11 () { f = 0; } 556 rxvt_font_x11 () { f = 0; }
491 557
492 void clear (); 558 void clear ();
493 559
494 rxvt_fontprop properties (); 560 rxvt_fontprop properties ();
… …
499 565
500 void draw (rxvt_drawable &d, int x, int y, 566 void draw (rxvt_drawable &d, int x, int y,
501 const text_t *text, int len, 567 const text_t *text, int len,
502 int fg, int bg); 568 int fg, int bg);
503 569
504 bool slow; // wether this is a proportional font or has other funny characteristics 570 bool slow; // whether this is a proportional font or has other funny characteristics
505 XFontStruct *f; 571 XFontStruct *f;
506 bool enc2b, encm; 572 bool enc2b, encm;
507 573
508 char *get_property (XFontStruct *f, Atom property, const char *repl) const; 574 char *get_property (XFontStruct *f, Atom property, const char *repl) const;
509 bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); 575 bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth);
… …
666 f = XLoadQueryFont (disp, name); 732 f = XLoadQueryFont (disp, name);
667 733
668 if (!f) 734 if (!f)
669 return false; 735 return false;
670 736
671 char *new_name = get_property (f, XA_FONT, name); 737 char *new_name = get_property (f, XA_FONT, 0);
672 738
673 if (new_name) 739 if (new_name)
674 set_name (new_name); 740 set_name (new_name);
675 else 741 else
676 rxvt_warn ("font '%s' has no FONT property, continuing without.", name); 742 rxvt_warn ("font '%s' has no FONT property, continuing without.\n", name);
677 743
678 XFreeFont (disp, f); 744 XFreeFont (disp, f);
679 f = 0; 745 f = 0;
680 } 746 }
681 747
… …
738 free (fname); 804 free (fname);
739 if (replace_field (&fname, list[i], 11, '0', "0")) 805 if (replace_field (&fname, list[i], 11, '0', "0"))
740 diff += 300; // more heavily penalize what looks like scaled bitmap fonts 806 diff += 300; // more heavily penalize what looks like scaled bitmap fonts
741 } 807 }
742 808
743 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);
744 continue; 815 continue;
745 816 }
746 if (prop.height != rxvt_fontprop::unset
747 && p.height > prop.height) // weed out too large fonts
748 continue;
749 817
750 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;
751 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);
752 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);
753 //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);
… …
759 XFreeFontNames (list); 827 XFreeFontNames (list);
760 828
761 // 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
762 for (;;) 830 for (;;)
763 { 831 {
764 font_weight *best = fonts + count - 1; 832 font_weight *best = fonts;
765 833
766 for (font_weight *w = best; w-- > fonts; ) 834 for (font_weight *w = fonts + 1; w < fonts + count; w++)
767 if (w->diff <= best->diff) 835 if (w->diff < best->diff)
768 best = w; 836 best = w;
769 837
770 if (!best->name 838 if (!best->name
771 || !(f = XLoadQueryFont (disp, best->name))) 839 || !(f = XLoadQueryFont (disp, best->name)))
772 break; 840 break;
… …
810 free (registry); 878 free (registry);
811 free (encoding); 879 free (encoding);
812 880
813 if (cs == CS_UNKNOWN) 881 if (cs == CS_UNKNOWN)
814 { 882 {
815 const char *charset = get_property (f, XA_FONT, 0); 883 char *value = get_property (f, XA_FONT, 0);
884 const char *charset = value;
816 885
817 if (!charset) 886 if (!charset)
818 charset = name; 887 charset = name;
819 888
820 int count = 13; 889 int count = 13;
… …
823 break; 892 break;
824 893
825 cs = codeset_from_name (charset); 894 cs = codeset_from_name (charset);
826 if (cs == CS_UNKNOWN) 895 if (cs == CS_UNKNOWN)
827 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);
828 } 899 }
829 900
830 if (cs == CS_UNKNOWN) 901 if (cs == CS_UNKNOWN)
831 { 902 {
832 clear (); 903 clear ();
… …
864 } 935 }
865#endif 936#endif
866 937
867 width = 1; 938 width = 1;
868 939
869 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++)
870 { 941 {
871 if (FROM_UNICODE (cs, *t) == NOCHAR) 942 if (FROM_UNICODE (cs, *t) == NOCHAR)
872 continue; 943 continue;
873 944
874 // ignore characters we wouldn't use anyways 945 // ignore characters we wouldn't use anyways
875 bool careful; 946 bool careful;
876 if (!has_char (*t, &prop, careful)) 947 if (!has_char (*t, &prop, careful))
877 continue; 948 continue;
878 949
879 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 };
880 952
881 XCharStruct g; 953 XCharStruct g;
882 int dir_ret, asc_ret, des_ret; 954 int dir_ret, asc_ret, des_ret;
883 XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g); 955 XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g);
884 956
… …
910} 982}
911 983
912bool 984bool
913rxvt_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
914{ 986{
987 careful = false;
988
915 uint32_t ch = FROM_UNICODE (cs, unicode); 989 uint32_t ch = FROM_UNICODE (cs, unicode);
916 990
917 if (ch == NOCHAR) 991 if (ch == NOCHAR)
918 return false; 992 return false;
919 993
920 /* check wether the character exists in _this_ font. horrible. */ 994 /* check whether the character exists in _this_ font. horrible. */
921 XCharStruct *xcs; 995 XCharStruct *xcs;
922 996
923 if (encm) 997 if (encm)
924 { 998 {
925 unsigned char byte1 = ch >> 8; 999 unsigned char byte1 = ch >> 8;
… …
955 return false; 1029 return false;
956 1030
957 if (!prop || prop->width == rxvt_fontprop::unset) 1031 if (!prop || prop->width == rxvt_fontprop::unset)
958 return true; 1032 return true;
959 1033
960 // check wether character overlaps previous/next character 1034 // check whether character overlaps previous/next character
961 int w = xcs->rbearing - xcs->lbearing; 1035 int w = xcs->rbearing - xcs->lbearing;
962 int wcw = max (WCWIDTH (unicode), 1); 1036 int wcw = max (WCWIDTH (unicode), 1);
963 1037
964 careful = xcs->lbearing < 0 || xcs->rbearing > prop->width * wcw; 1038 careful = xcs->lbearing < 0 || xcs->rbearing > prop->width * wcw;
965 1039
… …
982 dTermDisplay; 1056 dTermDisplay;
983 dTermGC; 1057 dTermGC;
984 1058
985 bool slow = this->slow 1059 bool slow = this->slow
986 || width != term->fwidth 1060 || width != term->fwidth
987 || height != term->fheight; 1061 || height != term->fheight
1062 || ascent != f->ascent;
988 1063
989 int base = ascent; // sorry, incorrect: term->fbase; 1064 int base = ascent; // sorry, incorrect: term->fbase;
990 1065
991 XGCValues v; 1066 XGCValues v;
992 v.foreground = term->pix_colors[fg]; 1067 v.foreground = term->pix_colors[fg];
… …
1060 1135
1061///////////////////////////////////////////////////////////////////////////// 1136/////////////////////////////////////////////////////////////////////////////
1062 1137
1063#if XFT 1138#if XFT
1064 1139
1065struct rxvt_font_xft : rxvt_font { 1140struct rxvt_font_xft : rxvt_font
1141{
1066 rxvt_font_xft () { f = 0; } 1142 rxvt_font_xft ()
1143 {
1144 f = 0;
1145 }
1067 1146
1068 void clear (); 1147 void clear ();
1069 1148
1070 rxvt_fontprop properties (); 1149 rxvt_fontprop properties ();
1071 1150
… …
1161 int ftheight = 0; 1240 int ftheight = 0;
1162 bool success = true; 1241 bool success = true;
1163 1242
1164 for (;;) 1243 for (;;)
1165 { 1244 {
1245 p = FcPatternDuplicate (match);
1166 f = XftFontOpenPattern (disp, FcPatternDuplicate (match)); 1246 f = XftFontOpenPattern (disp, p);
1167 1247
1168 if (!f) 1248 if (!f)
1169 { 1249 {
1250 FcPatternDestroy (p);
1170 success = false; 1251 success = false;
1171 break; 1252 break;
1172 } 1253 }
1173 1254
1174 FT_Face face = XftLockFace (f); 1255 FT_Face face = XftLockFace (f);
… …
1182 1263
1183 XftUnlockFace (f); 1264 XftUnlockFace (f);
1184 1265
1185 int glheight = height; 1266 int glheight = height;
1186 1267
1187 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++)
1188 { 1269 {
1189 FcChar16 ch = *t; 1270 FcChar16 ch = *t;
1190 1271
1191 if (cs != CS_UNICODE 1272 if (cs != CS_UNICODE
1192 && ch > 0x100 1273 && ch > 0x100
… …
1211 if (glheight < g.height - g.y) glheight = g.height - g.y; 1292 if (glheight < g.height - g.y) glheight = g.height - g.y;
1212 } 1293 }
1213 1294
1214 if (!width) 1295 if (!width)
1215 { 1296 {
1216 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);
1217 1298 width = f->max_advance_width;
1218 XftFontClose (disp, f);
1219 f = 0;
1220
1221 success = false;
1222 break; 1299 break;
1223 } 1300 }
1224 1301
1225 if (prop.height == rxvt_fontprop::unset 1302 if (prop.height == rxvt_fontprop::unset
1226 || (height <= prop.height && glheight <= prop.height) 1303 || (height <= prop.height && glheight <= prop.height)
… …
1261bool 1338bool
1262rxvt_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
1263{ 1340{
1264 careful = false; 1341 careful = false;
1265 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
1266 if (!XftCharExists (term->dpy, f, unicode)) 1357 if (!XftCharExists (term->dpy, f, chr))
1267 return false; 1358 return false;
1268 1359
1269 if (!prop || prop->width == rxvt_fontprop::unset) 1360 if (!prop || prop->width == rxvt_fontprop::unset)
1270 return true; 1361 return true;
1271 1362
1272 // check character against base font bounding box 1363 int wcw = max (WCWIDTH (chr), 1);
1273 FcChar32 ch = unicode; 1364
1274 XGlyphInfo g; 1365 XGlyphInfo g;
1275 XftTextExtents32 (term->dpy, f, &ch, 1, &g); 1366 XftTextExtents32 (term->dpy, f, &chr, 1, &g);
1276 1367
1277 int w = g.width - g.x; 1368 int w = g.width - g.x;
1278 int wcw = max (WCWIDTH (unicode), 1);
1279 1369
1280 careful = g.x > 0 || w > prop->width * wcw; 1370 careful = g.x > 0 || w > prop->width * wcw;
1281 1371
1282 if (careful && !OVERLAP_OK (w, wcw, prop)) 1372 if (careful && !OVERLAP_OK (w, wcw, prop))
1283 return false; 1373 return false;
… …
1292void 1382void
1293rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, 1383rxvt_font_xft::draw (rxvt_drawable &d, int x, int y,
1294 const text_t *text, int len, 1384 const text_t *text, int len,
1295 int fg, int bg) 1385 int fg, int bg)
1296{ 1386{
1297 XGlyphInfo extents;
1298 XftGlyphSpec *enc = rxvt_temp_buf<XftGlyphSpec> (len); 1387 XftGlyphSpec *enc = rxvt_temp_buf<XftGlyphSpec> (len);
1299 XftGlyphSpec *ep = enc; 1388 XftGlyphSpec *ep = enc;
1300 1389
1301 dTermDisplay; 1390 dTermDisplay;
1302 dTermGC; 1391 dTermGC;
… …
1315 int y_ = buffered ? 0 : y; 1404 int y_ = buffered ? 0 : y;
1316 1405
1317 while (len) 1406 while (len)
1318 { 1407 {
1319 int cwidth = term->fwidth; 1408 int cwidth = term->fwidth;
1320 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
1321 1418
1322 while (len && *text == NOCHAR) 1419 while (len && *text == NOCHAR)
1323 text++, len--, cwidth += term->fwidth; 1420 text++, len--, cwidth += term->fwidth;
1324 1421
1325 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)
1326 { 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
1327 FT_UInt glyph = XftCharIndex (disp, f, fc); 1438 FT_UInt glyph = XftCharIndex (disp, f, chr);
1439 XGlyphInfo extents;
1328 XftGlyphExtents (disp, f, &glyph, 1, &extents); 1440 XftGlyphExtents (disp, f, &glyph, 1, &extents);
1329 1441
1330 ep->glyph = glyph; 1442 ep->glyph = glyph;
1331 ep->x = x_ + (cwidth - extents.xOff >> 1); 1443 ep->x = x_;
1332 ep->y = y_ + ascent; 1444 ep->y = y_ + ascent;
1333 1445
1334 if (extents.xOff == 0) 1446 // the xft font cell might differ from the terminal font cell,
1335 ep->x = x_ + cwidth; 1447 // in which case we use the average between the two.
1448 ep->x += cwidth - extents.xOff >> 1;
1336 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
1337 ep++; 1459 ++ep;
1338 } 1460 }
1339 1461
1340 x_ += cwidth; 1462 x_ += cwidth;
1341 } 1463 }
1342 1464
… …
1344 { 1466 {
1345 if (ep != enc) 1467 if (ep != enc)
1346 { 1468 {
1347 rxvt_drawable &d2 = d.screen->scratch_drawable (w, h); 1469 rxvt_drawable &d2 = d.screen->scratch_drawable (w, h);
1348 1470
1349#ifdef HAVE_BG_PIXMAP 1471#ifdef HAVE_IMG
1350 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
1351 1473
1352 if (term->bgPixmap.pixmap 1474 if (term->bg_img
1353 && (bg == Color_transparent || bg == Color_bg 1475 && (bg == Color_transparent || bg == Color_bg
1354 || (bg >= 0 && !term->pix_colors[bg].is_opaque () && ((dst = XftDrawPicture (d2)))))) 1476 || (bg >= 0 && !term->pix_colors[bg].is_opaque () && ((dst = XftDrawPicture (d2))))))
1355 { 1477 {
1356 int src_x = x, src_y = y; 1478 int src_x = x, src_y = y;
1357 1479
1358 if (term->bgPixmap.is_parentOrigin ()) 1480 if (term->bg_flags & rxvt_term::BG_IS_TRANSPARENT)
1359 { 1481 {
1360 src_x += term->window_vt_x; 1482 src_x += term->window_vt_x;
1361 src_y += term->window_vt_y; 1483 src_y += term->window_vt_y;
1362 } 1484 }
1363 1485
1364 if (term->bgPixmap.pmap_width >= src_x + w 1486 if (term->bg_img->w >= src_x + w
1365 && term->bgPixmap.pmap_height >= src_y + h) 1487 && term->bg_img->h >= src_y + h)
1366 { 1488 {
1367 XCopyArea (disp, term->bgPixmap.pixmap, d2, gc, 1489 XCopyArea (disp, term->bg_img->pm, d2, gc,
1368 src_x, src_y, w, h, 0, 0); 1490 src_x, src_y, w, h, 0, 0);
1369 } 1491 }
1370 else 1492 else
1371 { 1493 {
1372 XGCValues gcv; 1494 XGCValues gcv;
1373 1495
1374 gcv.fill_style = FillTiled; 1496 gcv.fill_style = FillTiled;
1375 gcv.tile = term->bgPixmap.pixmap; 1497 gcv.tile = term->bg_img->pm;
1376 gcv.ts_x_origin = -src_x; 1498 gcv.ts_x_origin = -src_x;
1377 gcv.ts_y_origin = -src_y; 1499 gcv.ts_y_origin = -src_y;
1378 1500
1379 XChangeGC (disp, gc, 1501 XChangeGC (disp, gc,
1380 GCTile | GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle, 1502 GCTile | GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle,
… …
1432 prop.width = prop.height = prop.ascent = prop.weight = prop.slant 1554 prop.width = prop.height = prop.ascent = prop.weight = prop.slant
1433 = rxvt_fontprop::unset; 1555 = rxvt_fontprop::unset;
1434 force_prop = false; 1556 force_prop = false;
1435 1557
1436 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) 1558 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++)
1437 FONT_UNREF (*i); 1559 (*i)->unref ();
1438 1560
1439 for (pagemap **p = fmap.begin (); p != fmap.end (); p++) 1561 for (pagemap **p = fmap.begin (); p != fmap.end (); p++)
1440 delete *p; 1562 delete *p;
1441 1563
1442 free (fontdesc); fontdesc = 0; 1564 free (fontdesc); fontdesc = 0;
… …
1444 fonts.clear (); 1566 fonts.clear ();
1445 1567
1446 fallback = fallback_fonts; 1568 fallback = fallback_fonts;
1447} 1569}
1448 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
1449rxvt_font * 1580rxvt_font *
1450rxvt_fontset::new_font (const char *name, codeset cs) 1581rxvt_fontset::new_font (const char *name, codeset cs)
1451{ 1582{
1452 rxvt_font *f; 1583 rxvt_font *f;
1453 1584
… …
1469 f = new rxvt_font_x11; 1600 f = new rxvt_font_x11;
1470 } 1601 }
1471 else 1602 else
1472 f = new rxvt_font_x11; 1603 f = new rxvt_font_x11;
1473 1604
1474 f->set_term (term);
1475 f->set_name (strdup (name)); 1605 f->set_name (strdup (name));
1476 1606 prepare_font (f, cs);
1477 f->cs = cs;
1478 f->loaded = false;
1479 1607
1480 return f; 1608 return f;
1481} 1609}
1482 1610
1483///////////////////////////////////////////////////////////////////////////// 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}
1484 1629
1485void 1630void
1486rxvt_fontset::add_fonts (const char *desc) 1631rxvt_fontset::add_fonts (const char *desc)
1487{ 1632{
1488 if (desc) 1633 if (desc)
… …
1517 cs = codeset_from_name (spec + sizeof ("codeset=") - 1); 1662 cs = codeset_from_name (spec + sizeof ("codeset=") - 1);
1518 else 1663 else
1519 rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec); 1664 rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec);
1520 1665
1521 desc++; 1666 desc++;
1522 while (*desc <= ' ') desc++; 1667 while (*desc <= ' ' && *desc) desc++;
1523 } 1668 }
1524 1669
1525 end = strchr (desc, ','); 1670 end = strchr (desc, ',');
1526 if (!end) 1671 if (!end)
1527 end = desc + strlen (desc); 1672 end = desc + strlen (desc);
… …
1529 if (end - desc < 511) 1674 if (end - desc < 511)
1530 { 1675 {
1531 memcpy (buf, desc, end - desc); 1676 memcpy (buf, desc, end - desc);
1532 buf[end - desc] = 0; 1677 buf[end - desc] = 0;
1533 1678
1534 fonts.push_back (new_font (buf, cs)); 1679 push_font (new_font (buf, cs));
1535 } 1680 }
1536 else 1681 else
1537 rxvt_warn ("fontset element too long (>511 bytes), ignored."); 1682 rxvt_warn ("fontset element too long (>511 bytes), ignored.\n");
1538 1683
1539 desc = end + 1; 1684 desc = end + 1;
1540 } 1685 }
1541 while (*end); 1686 while (*end);
1542 } 1687 }
… …
1567{ 1712{
1568 clear (); 1713 clear ();
1569 1714
1570 fontdesc = strdup (desc); 1715 fontdesc = strdup (desc);
1571 1716
1572 fonts.push_back (new_font (0, CS_UNICODE)); 1717 push_font (new_font (0, CS_UNICODE));
1573 realize_font (0); 1718 realize_font (0);
1574 1719
1575 add_fonts (desc); 1720 add_fonts (desc);
1576 1721
1577 return true; 1722 return true;
… …
1586 1731
1587 return -1; 1732 return -1;
1588} 1733}
1589 1734
1590int 1735int
1591rxvt_fontset::find_font_idx (unicode_t unicode, bool &careful) 1736rxvt_fontset::find_font_idx (unicode_t unicode)
1592{ 1737{
1593 if (unicode >= 1<<20) 1738 // this limits fmap size. it has to accomodate COMPOSE_HI when UNICODE_3
1739 if (unicode > 0x1fffff)
1594 return 0; 1740 return 0;
1595 1741
1596 unicode_t hi = unicode >> 8; 1742 unicode_t hi = unicode >> 8;
1597 1743
1598 if (hi < fmap.size () && fmap[hi]) 1744 if (hi < fmap.size ())
1599 { 1745 if (pagemap *pm = fmap[hi])
1600 unsigned char m = (*fmap[hi])[unicode & 0xff]; 1746 if ((*pm)[unicode & 0xff] != 0xff)
1601 1747 return (*pm)[unicode & 0xff];
1602 if (m != 0xff)
1603 {
1604 careful = m & 128;
1605 return m & 127;
1606 }
1607 }
1608 1748
1609 unsigned int i; 1749 unsigned int i;
1610 1750
1611 for (i = 0; i < fonts.size (); i++) 1751 for (i = 0; i < fonts.size (); i++)
1612 { 1752 {
… …
1625 } 1765 }
1626 1766
1627 if (f->cs == CS_UNKNOWN) 1767 if (f->cs == CS_UNKNOWN)
1628 goto next_font; 1768 goto next_font;
1629 1769
1770 bool careful;
1630 if (f->has_char (unicode, &prop, careful)) 1771 if (f->has_char (unicode, &prop, careful))
1772 {
1773 i = (i << 1) | careful;
1774
1631 goto found; 1775 goto found;
1776 }
1632 1777
1633 next_font: 1778 next_font:
1634 if (i == fonts.size () - 1) 1779 if (i == fonts.size () - 1)
1635 { 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
1636 if (fallback->name) 1786 if (fallback->name)
1637 { 1787 {
1638 // search through the fallback list 1788 // search through the fallback list
1639 fonts.push_back (new_font (fallback->name, fallback->cs)); 1789 push_font (new_font (fallback->name, fallback->cs));
1640 fallback++; 1790 fallback++;
1641 } 1791 }
1642 else 1792 else
1643 { 1793 {
1644 // try to find a new font. 1794 // try to find a new font.
… …
1646 // way to configure this and xft is easier to hack in, 1796 // way to configure this and xft is easier to hack in,
1647 // while x11 has more framework in place already. 1797 // while x11 has more framework in place already.
1648 // TODO: this is a real resource hog, xft takes ages(?) 1798 // TODO: this is a real resource hog, xft takes ages(?)
1649#if XFT && USE_SLOW_LOOKUP 1799#if XFT && USE_SLOW_LOOKUP
1650 // 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
1651 FcPattern *p = FcPatternCreate (); 1802 FcPattern *p = FcPatternCreate ();
1652 1803
1653 FcCharSet *s = FcCharSetCreate (); 1804 FcCharSet *s = FcCharSetCreate ();
1654 FcCharSetAddChar (s, unicode); 1805 FcCharSetAddChar (s, unicode);
1655 FcPatternAddCharSet (p, FC_CHARSET, s); 1806 FcPatternAddCharSet (p, FC_CHARSET, s);
… …
1677 if (find_font (font) < 0) 1828 if (find_font (font) < 0)
1678 { 1829 {
1679 char fontname[4096]; 1830 char fontname[4096];
1680 snprintf (fontname, sizeof (fontname), "xft:%s", font); 1831 snprintf (fontname, sizeof (fontname), "xft:%s", font);
1681 1832
1682 fonts.push_back (new_font (fontname, CS_UNICODE)); 1833 push_font (new_font (fontname, CS_UNICODE));
1683 } 1834 }
1684 1835
1685 free (font); 1836 free (font);
1686 } 1837 }
1687#endif 1838#endif
… …
1689 } 1840 }
1690 } 1841 }
1691 1842
1692 /* we must return SOME font */ 1843 /* we must return SOME font */
1693 i = 0; 1844 i = 0;
1694 careful = false;
1695 1845
1696found: 1846found:
1697 // found a font, cache it 1847 // found a font, cache it
1698 if (i < 127) 1848 if (i < 255)
1699 { 1849 {
1700 while (hi >= fmap.size ()) 1850 while (hi >= fmap.size ())
1701 fmap.push_back (0); 1851 fmap.push_back (0);
1702 1852
1703 if (!fmap[hi]) 1853 if (!fmap[hi])
1704 { 1854 {
1705 fmap[hi] = (pagemap *)new pagemap; 1855 fmap[hi] = new pagemap;
1706 memset (fmap[hi], 0xff, sizeof (pagemap)); 1856 memset (fmap[hi], 0xff, sizeof (pagemap));
1707 } 1857 }
1708 1858
1709 (*fmap[hi])[unicode & 0xff] = i | (careful ? 128 : 0); 1859 (*fmap[hi])[unicode & 0xff] = i;
1710 } 1860 }
1711 1861
1712 return i; 1862 return i;
1713} 1863}
1714 1864
1715int
1716rxvt_fontset::find_font (unicode_t unicode)
1717{
1718 bool careful;
1719 int id = find_font_idx (unicode, careful);
1720
1721 return min<int> (fontCount, id) | (careful ? Careful : 0);
1722}
1723

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines