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Comparing rxvt-unicode/src/rxvtfont.C (file contents):
Revision 1.157 by root, Tue Mar 30 23:38:02 2010 UTC vs.
Revision 1.172 by sf-exg, Thu Dec 30 18:19:38 2010 UTC

… …
26 26
27#include <cstdlib> 27#include <cstdlib>
28 28
29#include <inttypes.h> 29#include <inttypes.h>
30 30
31#if XFT
32# include <fontconfig/fontconfig.h>
33#endif
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" },
… …
155 '0', '1', '8', 'a', 'd', 'x', 'm', 'y', 'g', 'W', 'X', '\'', '_', 159 '0', '1', '8', 'a', 'd', 'x', 'm', 'y', 'g', 'W', 'X', '\'', '_',
156 0x00cd, 0x00d5, 0x0114, 0x0177, 0x0643, // ÍÕĔŷﻙ 160 0x00cd, 0x00d5, 0x0114, 0x0177, 0x0643, // ÍÕĔŷﻙ
157 0x304c, 0x672c, // が本 161 0x304c, 0x672c, // が本
158}; 162};
159 163
160#define NUM_EXTENT_TEST_CHARS (sizeof (extent_test_chars) / sizeof (extent_test_chars[0]))
161
162#define dTermDisplay Display *disp = term->dpy 164#define dTermDisplay Display *disp = term->dpy
163#define dTermGC GC gc = term->gc 165#define dTermGC GC gc = term->gc
164 166
165///////////////////////////////////////////////////////////////////////////// 167/////////////////////////////////////////////////////////////////////////////
166 168
… …
448 450
449 text_t chrs[2]; 451 text_t chrs[2];
450 chrs [1] = NOCHAR; 452 chrs [1] = NOCHAR;
451 453
452 *chrs = cc->c1; 454 *chrs = cc->c1;
453 rxvt_font *f1 = fs->get (cc->c1); 455 rxvt_font *f1 = (*fs)[fs->find_font_idx (cc->c1)];
454 f1->draw (d, x, y, chrs, width, fg, bg); 456 f1->draw (d, x, y, chrs, width, fg, bg);
455 457
456 if (cc->c2 != NOCHAR) 458 if (cc->c2 != NOCHAR)
457 { 459 {
458 bool careful; 460 bool careful;
459 461
460 // prefer font of first character, for no good reasons 462 // prefer font of first character, for no good reasons
461 *chrs = cc->c2; 463 *chrs = cc->c2;
462 rxvt_font *f2 = (f1->has_char (cc->c2, 0, careful) && !careful) 464 rxvt_font *f2 = (f1->has_char (cc->c2, 0, careful) && !careful)
463 ? f1 465 ? f1
464 : fs->get (cc->c2); 466 : (*fs)[fs->find_font_idx (cc->c2)];
465 467
466 f2->draw (d, x, y, chrs, width, fg, Color_none); 468 f2->draw (d, x, y, chrs, width, fg, Color_none);
467 } 469 }
468 } 470 }
469#endif 471#endif
… …
482 484
483 x += fwidth; 485 x += fwidth;
484 } 486 }
485} 487}
486 488
489struct rxvt_font_overflow : rxvt_font {
490 struct rxvt_fontset *fs;
491
492 rxvt_font_overflow (rxvt_fontset *fs)
493 : rxvt_font ()
494 {
495 this->fs = fs;
496 }
497
498 rxvt_fontprop properties ()
499 {
500 rxvt_fontprop p;
501
502 p.width = p.height = 1;
503 p.ascent = rxvt_fontprop::unset;
504 p.weight = rxvt_fontprop::medium;
505 p.slant = rxvt_fontprop::roman;
506
507 return p;
508 }
509
510 bool load (const rxvt_fontprop &prop, bool force_prop)
511 {
512 width = 1; height = 1;
513 ascent = 1; descent = 0;
514
515 set_name (strdup ("built-in rendition overflow font"));
516
517 return true;
518 }
519
520 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const
521 {
522 return false;
523 }
524
525 void draw (rxvt_drawable &d, int x, int y,
526 const text_t *text, int len,
527 int fg, int bg)
528 {
529 while (len--)
530 {
531 int fid = fs->find_font_idx (*text);
532 (*fs)[fid]->draw (d, x, y, text, 1, fg, bg);
533 ++text;
534 x += term->fwidth;
535 }
536 }
537};
538
487///////////////////////////////////////////////////////////////////////////// 539/////////////////////////////////////////////////////////////////////////////
488 540
489struct rxvt_font_x11 : rxvt_font { 541struct rxvt_font_x11 : rxvt_font {
490 rxvt_font_x11 () { f = 0; } 542 rxvt_font_x11 () { f = 0; }
491 543
… …
499 551
500 void draw (rxvt_drawable &d, int x, int y, 552 void draw (rxvt_drawable &d, int x, int y,
501 const text_t *text, int len, 553 const text_t *text, int len,
502 int fg, int bg); 554 int fg, int bg);
503 555
504 bool slow; // wether this is a proportional font or has other funny characteristics 556 bool slow; // whether this is a proportional font or has other funny characteristics
505 XFontStruct *f; 557 XFontStruct *f;
506 bool enc2b, encm; 558 bool enc2b, encm;
507 559
508 char *get_property (XFontStruct *f, Atom property, const char *repl) const; 560 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); 561 bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth);
… …
666 f = XLoadQueryFont (disp, name); 718 f = XLoadQueryFont (disp, name);
667 719
668 if (!f) 720 if (!f)
669 return false; 721 return false;
670 722
671 char *new_name = get_property (f, XA_FONT, name); 723 char *new_name = get_property (f, XA_FONT, 0);
672 724
673 if (new_name) 725 if (new_name)
674 set_name (new_name); 726 set_name (new_name);
675 else 727 else
676 rxvt_warn ("font '%s' has no FONT property, continuing without.", name); 728 rxvt_warn ("font '%s' has no FONT property, continuing without.\n", name);
677 729
678 XFreeFont (disp, f); 730 XFreeFont (disp, f);
679 f = 0; 731 f = 0;
680 } 732 }
681 733
… …
738 free (fname); 790 free (fname);
739 if (replace_field (&fname, list[i], 11, '0', "0")) 791 if (replace_field (&fname, list[i], 11, '0', "0"))
740 diff += 300; // more heavily penalize what looks like scaled bitmap fonts 792 diff += 300; // more heavily penalize what looks like scaled bitmap fonts
741 } 793 }
742 794
743 if (!set_properties (p, fname)) 795 if (!set_properties (p, fname)
796 // also weed out too large fonts
797 || (prop.height != rxvt_fontprop::unset
798 && p.height > prop.height))
799 {
800 free (fname);
744 continue; 801 continue;
745 802 }
746 if (prop.height != rxvt_fontprop::unset
747 && p.height > prop.height) // weed out too large fonts
748 continue;
749 803
750 if (prop.height != rxvt_fontprop::unset) diff += (prop.height - p.height) * 128; 804 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); 805 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); 806 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); 807 //if (prop.width != rxvt_fontprop::unset) diff += abs (prop.width - p.width);
… …
810 free (registry); 864 free (registry);
811 free (encoding); 865 free (encoding);
812 866
813 if (cs == CS_UNKNOWN) 867 if (cs == CS_UNKNOWN)
814 { 868 {
815 const char *charset = get_property (f, XA_FONT, 0); 869 char *value = get_property (f, XA_FONT, 0);
870 const char *charset = value;
816 871
817 if (!charset) 872 if (!charset)
818 charset = name; 873 charset = name;
819 874
820 int count = 13; 875 int count = 13;
… …
823 break; 878 break;
824 879
825 cs = codeset_from_name (charset); 880 cs = codeset_from_name (charset);
826 if (cs == CS_UNKNOWN) 881 if (cs == CS_UNKNOWN)
827 rxvt_warn ("%s: cannot deduce encoding from font name property \"%s\", ignoring font.\n", name, charset); 882 rxvt_warn ("%s: cannot deduce encoding from font name property \"%s\", ignoring font.\n", name, charset);
883
884 free (value);
828 } 885 }
829 886
830 if (cs == CS_UNKNOWN) 887 if (cs == CS_UNKNOWN)
831 { 888 {
832 clear (); 889 clear ();
… …
864 } 921 }
865#endif 922#endif
866 923
867 width = 1; 924 width = 1;
868 925
869 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) 926 for (uint16_t *t = extent_test_chars + ARRAY_LENGTH(extent_test_chars); t-- > extent_test_chars; )
870 { 927 {
871 if (FROM_UNICODE (cs, *t) == NOCHAR) 928 if (FROM_UNICODE (cs, *t) == NOCHAR)
872 continue; 929 continue;
873 930
874 // ignore characters we wouldn't use anyways 931 // ignore characters we wouldn't use anyways
… …
915 uint32_t ch = FROM_UNICODE (cs, unicode); 972 uint32_t ch = FROM_UNICODE (cs, unicode);
916 973
917 if (ch == NOCHAR) 974 if (ch == NOCHAR)
918 return false; 975 return false;
919 976
920 /* check wether the character exists in _this_ font. horrible. */ 977 /* check whether the character exists in _this_ font. horrible. */
921 XCharStruct *xcs; 978 XCharStruct *xcs;
922 979
923 if (encm) 980 if (encm)
924 { 981 {
925 unsigned char byte1 = ch >> 8; 982 unsigned char byte1 = ch >> 8;
… …
955 return false; 1012 return false;
956 1013
957 if (!prop || prop->width == rxvt_fontprop::unset) 1014 if (!prop || prop->width == rxvt_fontprop::unset)
958 return true; 1015 return true;
959 1016
960 // check wether character overlaps previous/next character 1017 // check whether character overlaps previous/next character
961 int w = xcs->rbearing - xcs->lbearing; 1018 int w = xcs->rbearing - xcs->lbearing;
962 int wcw = max (WCWIDTH (unicode), 1); 1019 int wcw = max (WCWIDTH (unicode), 1);
963 1020
964 careful = xcs->lbearing < 0 || xcs->rbearing > prop->width * wcw; 1021 careful = xcs->lbearing < 0 || xcs->rbearing > prop->width * wcw;
965 1022
… …
1182 1239
1183 XftUnlockFace (f); 1240 XftUnlockFace (f);
1184 1241
1185 int glheight = height; 1242 int glheight = height;
1186 1243
1187 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) 1244 for (uint16_t *t = extent_test_chars + ARRAY_LENGTH(extent_test_chars); t-- > extent_test_chars; )
1188 { 1245 {
1189 FcChar16 ch = *t; 1246 FcChar16 ch = *t;
1190 1247
1191 if (cs != CS_UNICODE 1248 if (cs != CS_UNICODE
1192 && ch > 0x100 1249 && ch > 0x100
… …
1353 && (bg == Color_transparent || bg == Color_bg 1410 && (bg == Color_transparent || bg == Color_bg
1354 || (bg >= 0 && !term->pix_colors[bg].is_opaque () && ((dst = XftDrawPicture (d2)))))) 1411 || (bg >= 0 && !term->pix_colors[bg].is_opaque () && ((dst = XftDrawPicture (d2))))))
1355 { 1412 {
1356 int src_x = x, src_y = y; 1413 int src_x = x, src_y = y;
1357 1414
1358 if (term->bgPixmap.is_parentOrigin ()) 1415 if (term->bgPixmap.flags & bgPixmap_t::isTransparent)
1359 { 1416 {
1360 src_x += term->window_vt_x; 1417 src_x += term->window_vt_x;
1361 src_y += term->window_vt_y; 1418 src_y += term->window_vt_y;
1362 } 1419 }
1363 1420
… …
1432 prop.width = prop.height = prop.ascent = prop.weight = prop.slant 1489 prop.width = prop.height = prop.ascent = prop.weight = prop.slant
1433 = rxvt_fontprop::unset; 1490 = rxvt_fontprop::unset;
1434 force_prop = false; 1491 force_prop = false;
1435 1492
1436 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) 1493 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++)
1437 FONT_UNREF (*i); 1494 (*i)->unref ();
1438 1495
1439 for (pagemap **p = fmap.begin (); p != fmap.end (); p++) 1496 for (pagemap **p = fmap.begin (); p != fmap.end (); p++)
1440 delete *p; 1497 delete *p;
1441 1498
1442 free (fontdesc); fontdesc = 0; 1499 free (fontdesc); fontdesc = 0;
… …
1444 fonts.clear (); 1501 fonts.clear ();
1445 1502
1446 fallback = fallback_fonts; 1503 fallback = fallback_fonts;
1447} 1504}
1448 1505
1506void
1507rxvt_fontset::prepare_font (rxvt_font *font, codeset cs)
1508{
1509 font->set_term (term);
1510
1511 font->cs = cs;
1512 font->loaded = false;
1513}
1514
1449rxvt_font * 1515rxvt_font *
1450rxvt_fontset::new_font (const char *name, codeset cs) 1516rxvt_fontset::new_font (const char *name, codeset cs)
1451{ 1517{
1452 rxvt_font *f; 1518 rxvt_font *f;
1453 1519
… …
1469 f = new rxvt_font_x11; 1535 f = new rxvt_font_x11;
1470 } 1536 }
1471 else 1537 else
1472 f = new rxvt_font_x11; 1538 f = new rxvt_font_x11;
1473 1539
1474 f->set_term (term);
1475 f->set_name (strdup (name)); 1540 f->set_name (strdup (name));
1476 1541 prepare_font (f, cs);
1477 f->cs = cs;
1478 f->loaded = false;
1479 1542
1480 return f; 1543 return f;
1481} 1544}
1482 1545
1483///////////////////////////////////////////////////////////////////////////// 1546/////////////////////////////////////////////////////////////////////////////
1547
1548void
1549rxvt_fontset::push_font (rxvt_font *font)
1550{
1551 // the fontCount index is reserved for the overflow font, it is only
1552 // necessary when we get fontCount or more fonts, as they cannot be
1553 // represented in the rendition.
1554 if (fonts.size () == fontCount)
1555 {
1556 rxvt_font *f = new rxvt_font_overflow (this);
1557
1558 prepare_font (f, CS_UNICODE);
1559 fonts.push_back (f);
1560 }
1561
1562 fonts.push_back (font);
1563}
1484 1564
1485void 1565void
1486rxvt_fontset::add_fonts (const char *desc) 1566rxvt_fontset::add_fonts (const char *desc)
1487{ 1567{
1488 if (desc) 1568 if (desc)
… …
1529 if (end - desc < 511) 1609 if (end - desc < 511)
1530 { 1610 {
1531 memcpy (buf, desc, end - desc); 1611 memcpy (buf, desc, end - desc);
1532 buf[end - desc] = 0; 1612 buf[end - desc] = 0;
1533 1613
1534 fonts.push_back (new_font (buf, cs)); 1614 push_font (new_font (buf, cs));
1535 } 1615 }
1536 else 1616 else
1537 rxvt_warn ("fontset element too long (>511 bytes), ignored."); 1617 rxvt_warn ("fontset element too long (>511 bytes), ignored.");
1538 1618
1539 desc = end + 1; 1619 desc = end + 1;
… …
1567{ 1647{
1568 clear (); 1648 clear ();
1569 1649
1570 fontdesc = strdup (desc); 1650 fontdesc = strdup (desc);
1571 1651
1572 fonts.push_back (new_font (0, CS_UNICODE)); 1652 push_font (new_font (0, CS_UNICODE));
1573 realize_font (0); 1653 realize_font (0);
1574 1654
1575 add_fonts (desc); 1655 add_fonts (desc);
1576 1656
1577 return true; 1657 return true;
… …
1586 1666
1587 return -1; 1667 return -1;
1588} 1668}
1589 1669
1590int 1670int
1591rxvt_fontset::find_font_idx (unicode_t unicode, bool &careful) 1671rxvt_fontset::find_font_idx (unicode_t unicode)
1592{ 1672{
1593 if (unicode >= 1<<20) 1673 if (unicode >= 1<<20)
1594 return 0; 1674 return 0;
1595 1675
1596 unicode_t hi = unicode >> 8; 1676 unicode_t hi = unicode >> 8;
1597 1677
1598 if (hi < fmap.size () && fmap[hi]) 1678 if (hi < fmap.size ()
1599 { 1679 && fmap[hi]
1680 && (*fmap[hi])[unicode & 0xff] != 0xff)
1600 unsigned char m = (*fmap[hi])[unicode & 0xff]; 1681 return (*fmap[hi])[unicode & 0xff];
1601
1602 if (m != 0xff)
1603 {
1604 careful = m & 128;
1605 return m & 127;
1606 }
1607 }
1608 1682
1609 unsigned int i; 1683 unsigned int i;
1610 1684
1611 for (i = 0; i < fonts.size (); i++) 1685 for (i = 0; i < fonts.size (); i++)
1612 { 1686 {
… …
1625 } 1699 }
1626 1700
1627 if (f->cs == CS_UNKNOWN) 1701 if (f->cs == CS_UNKNOWN)
1628 goto next_font; 1702 goto next_font;
1629 1703
1704 bool careful;
1630 if (f->has_char (unicode, &prop, careful)) 1705 if (f->has_char (unicode, &prop, careful))
1706 {
1707 i = (i << 1) | careful;
1708
1631 goto found; 1709 goto found;
1710 }
1632 1711
1633 next_font: 1712 next_font:
1634 if (i == fonts.size () - 1) 1713 if (i == fonts.size () - 1)
1635 { 1714 {
1636 if (fallback->name) 1715 if (fallback->name)
1637 { 1716 {
1638 // search through the fallback list 1717 // search through the fallback list
1639 fonts.push_back (new_font (fallback->name, fallback->cs)); 1718 push_font (new_font (fallback->name, fallback->cs));
1640 fallback++; 1719 fallback++;
1641 } 1720 }
1642 else 1721 else
1643 { 1722 {
1644 // try to find a new font. 1723 // try to find a new font.
… …
1677 if (find_font (font) < 0) 1756 if (find_font (font) < 0)
1678 { 1757 {
1679 char fontname[4096]; 1758 char fontname[4096];
1680 snprintf (fontname, sizeof (fontname), "xft:%s", font); 1759 snprintf (fontname, sizeof (fontname), "xft:%s", font);
1681 1760
1682 fonts.push_back (new_font (fontname, CS_UNICODE)); 1761 push_font (new_font (fontname, CS_UNICODE));
1683 } 1762 }
1684 1763
1685 free (font); 1764 free (font);
1686 } 1765 }
1687#endif 1766#endif
… …
1689 } 1768 }
1690 } 1769 }
1691 1770
1692 /* we must return SOME font */ 1771 /* we must return SOME font */
1693 i = 0; 1772 i = 0;
1694 careful = false;
1695 1773
1696found: 1774found:
1697 // found a font, cache it 1775 // found a font, cache it
1698 if (i < 127) 1776 if (i < 255)
1699 { 1777 {
1700 while (hi >= fmap.size ()) 1778 while (hi >= fmap.size ())
1701 fmap.push_back (0); 1779 fmap.push_back (0);
1702 1780
1703 if (!fmap[hi]) 1781 if (!fmap[hi])
1704 { 1782 {
1705 fmap[hi] = (pagemap *)new pagemap; 1783 fmap[hi] = (pagemap *)new pagemap;
1706 memset (fmap[hi], 0xff, sizeof (pagemap)); 1784 memset (fmap[hi], 0xff, sizeof (pagemap));
1707 } 1785 }
1708 1786
1709 (*fmap[hi])[unicode & 0xff] = i | (careful ? 128 : 0); 1787 (*fmap[hi])[unicode & 0xff] = i;
1710 } 1788 }
1711 1789
1712 return i; 1790 return i;
1713} 1791}
1714 1792
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

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