1 /*--------------------------------*-C-*---------------------------------*
3 *----------------------------------------------------------------------*
4 * Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com>
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.
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.
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 *---------------------------------------------------------------------*/
22 #include "../config.h"
31 #define DISPLAY r->display->display
32 #define TGC r->TermWin.gc
34 #define MAX_OVERLAP (4 + 1) // max. character width in 4ths of the base width
36 const struct rxvt_fallback_font {
39 } fallback_fonts[] = {
40 { CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" },
41 { CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" },
42 { CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-fcd8859-15" },
46 { CS_KOI8_R, "-*-*-*-r-*--*-*-*-*-c-*-koi8-r" },
47 { CS_KOI8_U, "-*-*-*-r-*--*-*-*-*-c-*-koi8-u" },
49 { CS_ISO8859_2, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-2" },
50 { CS_ISO8859_3, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-3" },
51 { CS_ISO8859_4, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-4" },
52 { CS_ISO8859_5, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-5" },
53 { CS_ISO8859_6, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-6" },
54 { CS_ISO8859_7, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-7" },
55 { CS_ISO8859_8, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-8" },
56 { CS_ISO8859_9, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-9" },
57 { CS_ISO8859_10, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-10" },
58 { CS_ISO8859_11, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-11" },
59 { CS_ISO8859_13, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-13" },
60 { CS_ISO8859_14, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-14" },
61 { CS_ISO8859_16, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-16" },
64 { CS_KOI8_U, "xft::spacing=100:lang=ru:antialias=false" },
66 { CS_ISO8859_5, "xft::spacing=100:lang=ru:antialias=false" },
67 { CS_ISO8859_6, "xft::spacing=100:lang=ar:antialias=false" },
68 { CS_ISO8859_7, "xft::spacing=100:lang=el:antialias=false" },
69 { CS_ISO8859_8, "xft::spacing=100:lang=he:antialias=false" },
70 { CS_ISO8859_9, "xft::spacing=100:lang=tr:antialias=false" },
71 { CS_ISO8859_10, "xft::spacing=100:lang=se:antialias=false" },
72 { CS_ISO8859_11, "xft::spacing=100:lang=th:antialias=false" },
77 #if ENCODING_JP || ENCODING_JP_EXT
79 // prefer xft for complex scripts
80 { CS_JIS0208_1990_0, "xft:Kochi Gothic:antialias=false" },
81 { CS_JIS0208_1990_0, "xft:Sazanami Mincho:antialias=false" },
82 { CS_JIS0208_1990_0, "xft:Mincho:antialias=false" },
83 { CS_JIS0208_1990_0, "xft::lang=ja:spacing=100:antialias=false" },
85 { CS_JIS0201_1976_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0201*-0" },
86 { CS_JIS0208_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" },
87 { CS_JIS0212_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0212*-0" },
88 { CS_JIS0201_1976_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0201*-0" },
89 { CS_JIS0208_1990_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0208*-0" },
90 { CS_JIS0212_1990_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0212*-0" },
93 #if ENCODING_ZH || ENCODING_ZH_EXT
95 { CS_BIG5_EXT, "xft:AR PL Mingti2L Big5" },
96 { CS_BIG5_EXT, "xft:AR PL KaitiM Big5" },
97 { CS_GB2312_1980_0, "xft:AR PL KaitiM GB" },
98 { CS_GB2312_1980_0, "xft:AR PL SungtiL GB" },
99 { CS_GB2312_1980_0, "xft::spacing=100:lang=zh" },
101 { CS_BIG5, "-*-*-*-*-*-*-*-*-*-*-c-*-big5-0" },
102 { CS_BIG5_PLUS, "-*-*-*-*-*-*-*-*-*-*-c-*-big5p-0" },
103 { CS_BIG5_EXT, "-*-*-*-*-*-*-*-*-*-*-c-*-big5.eten-0" },
104 { CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-gb2312*-0" },
105 { CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-1" },
106 { CS_CNS11643_1992_2, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-2" },
107 { CS_CNS11643_1992_3, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-3" },
108 { CS_CNS11643_1992_4, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-4" },
109 { CS_CNS11643_1992_5, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-5" },
110 { CS_CNS11643_1992_6, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-6" },
111 { CS_CNS11643_1992_7, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-7" },
112 { CS_CNS11643_1992_F, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-f" },
116 { CS_KSC5601_1987_0, "-baekmuk-gulim-*-*-*-*-*-*-*-*-c-*-ksc5601*" },
117 { CS_KSC5601_1987_0, "-*-*-*-*-*-*-*-*-*-*-c-*-ksc5601*" },
119 { CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" },
120 { CS_KSC5601_1987_0, "xft::spacing=100:lang=ko:antialias=false" },
124 // generic font fallback
125 { CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" },
126 { CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" },
127 { CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" },
128 { CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" },
130 { CS_UNICODE, "xft:Bitstream Vera Sans Mono:antialias=false:autohint=true"},
131 { CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" },
132 { CS_UNICODE, "xft:Andale Mono:antialias=false" },
133 { CS_UNICODE, "xft:Arial Unicode MS:antialias=false" },
135 // FreeMono is usually uglier than x fonts, so try last only.
136 { CS_UNICODE, "xft:FreeMono:autohint=true" },
142 // these characters are used to guess the font height and width
143 // pango uses a similar algorithm and eosn't trust the font either.
144 static uint16_t extent_test_chars[] = {
145 '0', '1', '8', 'a', 'd', 'x', 'm', 'y', 'g', 'W', 'X', '\'', '_',
146 0x00cd, 0x00d5, 0x0114, 0x0177, 0x0643, // ÍÕĔŷﻙ
147 0x304c, 0x672c, // が本
150 #define NUM_EXTENT_TEST_CHARS (sizeof (extent_test_chars) / sizeof (extent_test_chars[0]))
152 /////////////////////////////////////////////////////////////////////////////
155 rxvt_drawable::~rxvt_drawable ()
158 XftDrawDestroy (xftdrawable);
161 rxvt_drawable::operator XftDraw *()
164 xftdrawable = XftDrawCreate (display->display, drawable, display->visual, display->cmap);
170 /////////////////////////////////////////////////////////////////////////////
172 static void *enc_buf;
173 static uint32_t enc_len;
176 get_enc_buf (uint32_t len)
181 enc_buf = malloc (len);
189 enc_char (const text_t *text, uint32_t len, codeset cs, bool &zero)
191 uint8_t *buf = (uint8_t *)get_enc_buf (len);
195 uint32_t c = FROM_UNICODE (cs, *text++);
206 return (const char *)enc_buf;
209 static const XChar2b *
210 enc_xchar2b (const text_t *text, uint32_t len, codeset cs, bool &zero)
212 XChar2b *buf = (XChar2b *)get_enc_buf (len * sizeof (XChar2b));
216 uint32_t c = FROM_UNICODE (cs, *text++);
229 return (XChar2b *)enc_buf;
232 /////////////////////////////////////////////////////////////////////////////
235 rxvt_font::set_name (char *name)
237 if (this->name == name)
240 if (this->name) free (this->name); // let the compiler optimize
245 rxvt_font::clear_rect (rxvt_drawable &d, int x, int y, int w, int h, int color)
247 if (color == Color_bg)
248 XClearArea (d.display->display, d, x, y, w, h, FALSE);
252 XftDrawRect (d, &r->pix_colors[color].c, x, y, w, h);
254 XSetForeground (d.display->display, TGC, r->pix_colors[color]);
255 XFillRectangle (d.display->display, d, TGC, x, y, w, h);
260 #include "table/linedraw.h"
262 struct rxvt_font_default : rxvt_font {
263 struct rxvt_fontset *fs;
265 rxvt_font_default (rxvt_fontset *fs)
271 rxvt_fontprop properties ()
275 p.width = p.height = 1;
276 p.weight = rxvt_fontprop::medium;
277 p.slant = rxvt_fontprop::roman;
282 bool load (const rxvt_fontprop &prop)
284 width = 1; height = 1;
285 ascent = 1; descent = 0;
287 set_name (strdup ("built-in support font"));
292 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful)
296 if (unicode <= 0x001f)
299 if (unicode <= 0x007f)
302 if (unicode <= 0x009f)
305 if (unicode >= 0x2500 && unicode <= 0x259f)
308 if (IS_COMPOSE (unicode))
313 case ZERO_WIDTH_CHAR:
321 void draw (rxvt_drawable &d, int x, int y,
322 const text_t *text, int len,
327 rxvt_font_default::draw (rxvt_drawable &d, int x, int y,
328 const text_t *text, int len,
331 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
333 XSetForeground (d.display->display, TGC, r->pix_colors[fg]);
342 if (0x2500 <= t && t <= 0x259f)
344 uint16_t offs = linedraw_offs[t - 0x2500];
345 uint32_t *a = linedraw_command + (offs >> 4);
346 uint32_t *b = a + (offs & 15);
348 int W = r->TermWin.fwidth;
349 int H = r->TermWin.fheight;
351 // support double-width (but not more) graphics chars
352 // TODO: do this outside the if/elsif.. statement for all cases
353 if (len && *text == NOCHAR)
354 W += r->TermWin.fwidth;
359 for (int i = 0; i <= 8; i++)
361 x_[i] = x + ((W-1) * i + (i*7/8)) / 8;
362 y_[i] = y + ((H-1) * i + (i*7/8)) / 8;
365 x_[10] = x + (W - 1) / 2; x_[9] = x_[10] - 1; x_[11] = x_[10] + 1;
366 y_[10] = y + (H - 1) / 2; y_[9] = y_[10] - 1; y_[11] = y_[10] + 1;
370 gcv.cap_style = CapButt;
372 XChangeGC (d.display->display, TGC, GCLineWidth | GCCapStyle, &gcv);
376 uint32_t command = *a++;
378 int op = (command >> 24) & 255;
379 int a = (command >> 20) & 15;
380 int b = (command >> 16) & 15;
381 int x1 = x_[(command >> 12) & 15];
382 int y1 = y_[(command >> 8) & 15];
383 int x2 = x_[(command >> 4) & 15];
384 int y2 = y_[(command >> 0) & 15];
389 XDrawLine (d.display->display, d, TGC, x1, y1, x2, y2);
392 case 1: // rectangle, possibly stippled
395 static char bm[] = { 0,0 , 3,1 , 1,2 , 1,0 };
397 gcv.fill_style = FillStippled;
398 gcv.stipple = XCreateBitmapFromData (d.display->display, d, bm + a * 2, 2, 2);
402 XChangeGC (d.display->display, TGC,
403 GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin,
407 XFillRectangle (d.display->display, d, TGC, x1, y1, x2 - x1 + 1, y2 - y1 + 1);
411 XFreePixmap (d.display->display, gcv.stipple);
413 gcv.fill_style = FillSolid;
414 XChangeGC (d.display->display, TGC, GCFillStyle, &gcv);
418 XDrawArc (d.display->display, d, TGC,
419 x1 - W/2, y1 - H/2, W-1, H-1,
420 (a - 1) * 90*64, (b - 1) * 90*64);
426 else if (IS_COMPOSE (t) && (cc = rxvt_composite[t]))
431 // support double-width (but not more) combining characters
432 if (len && *text == NOCHAR)
434 c2[1] = *text; // not text++ to get correct x-width
439 rxvt_font *f1 = (*fs)[fs->find_font (c2[0])];
440 f1->draw (d, x, y, c2, len2, fg, bg);
442 if (cc->c2 != NOCHAR)
446 // prefer font of first character, for no good reasons
448 rxvt_font *f2 = (f1->has_char (c2[0], 0, careful) && !careful)
450 : (*fs)[fs->find_font (c2[0])];
452 f2->draw (d, x, y, c2, len2, fg, -1);
460 case ZERO_WIDTH_CHAR:
466 while (len > 0 && *text == NOCHAR)
470 w += r->TermWin.fwidth;
473 XDrawRectangle (d.display->display, d, TGC, x + 2, y + 2,
474 w + r->TermWin.fwidth - 4, r->TermWin.fheight - 4);
478 x += r->TermWin.fwidth;
482 /////////////////////////////////////////////////////////////////////////////
484 struct rxvt_font_x11 : rxvt_font {
485 rxvt_font_x11 () { f = 0; }
489 rxvt_fontprop properties ();
491 bool load (const rxvt_fontprop &prop);
493 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful);
495 void draw (rxvt_drawable &d, int x, int y,
496 const text_t *text, int len,
499 bool slow; // wether this is a proportional font or has other funny characteristics
504 char *get_property (XFontStruct *f, const char *property, const char *repl) const;
505 bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth);
506 bool set_properties (rxvt_fontprop &p, XFontStruct *f);
507 bool set_properties (rxvt_fontprop &p, const char *name);
511 rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const
515 if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value))
516 return XGetAtomName (DISPLAY, value);
518 return rxvt_strdup (repl);
522 rxvt_font_x11::properties ()
525 set_properties (p, f);
530 rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth)
532 p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2;
534 p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium;
535 p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic;
541 rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f)
543 unsigned long height;
544 if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height))
547 unsigned long avgwidth;
548 if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth))
551 char *weight = get_property (f, "WEIGHT_NAME", "medium");
552 char *slant = get_property (f, "SLANT", "r");
554 set_properties (p, height, weight, slant, avgwidth);
563 rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name)
566 const char *comp[13];
568 for (const char *c = name; *c; c++)
571 comp[slashes++] = c + 1;
576 /* can we short-circuit the costly XLoadQueryFont? */
578 && (*comp[ 6] >= '1' && *comp[ 6] <= '9')
579 && (*comp[11] >= '0' && *comp[11] <= '9'))
580 return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11]));
582 XFontStruct *f = XLoadQueryFont (DISPLAY, name);
586 // the font should really exist now. if not, we have a problem
587 // (e.g. if the user did xset fp rehash just when we were searching fonts).
588 // in that case, just return garbage.
589 bool ret = set_properties (p, f);
590 XFreeFont (DISPLAY, f);
597 // fix the size of scalable fonts
599 replace_field (char *buf, const char *name, int index, const char old, const char *replace)
602 const char *field, *end;
604 for (const char *c = name; *c; c++)
607 if (slashes == index)
610 if (slashes == index + 1)
617 if (slashes >= 13 && (!old || *field == old))
619 // TODO: check for overflow in font-name
620 strncpy (buf, name, field - name);
622 strcpy (buf, replace);
636 rxvt_font_x11::load (const rxvt_fontprop &prop)
640 char field_str[64]; // enough for 128 bits
642 // first morph the font if required
643 if (prop.weight != rxvt_fontprop::unset
644 || prop.slant != rxvt_fontprop::unset)
650 f = XLoadQueryFont (DISPLAY, name);
655 char *new_name = get_property (f, "FONT", name);
660 rxvt_warn ("font '%s' has no FONT property, continuing without.", name);
662 XFreeFont (DISPLAY, f);
666 if (prop.weight != rxvt_fontprop::unset)
668 replace_field (fname, name, 2, 0,
669 prop.weight < rxvt_fontprop::bold
670 ? "medium" : "bold");
671 set_name (strdup (fname));
674 if (prop.slant != rxvt_fontprop::unset)
676 replace_field (fname, name, 3, 0,
677 prop.slant < rxvt_fontprop::italic
678 ? "r" : "i"); // TODO: handle "o"blique, too
679 set_name (strdup (fname));
685 list = XListFonts (DISPLAY, name, 1024, &count);
692 sprintf (field_str, "%d", prop.height == rxvt_fontprop::unset
695 int bestdiff = 0x7fffffff;
696 for (int i = 0; i < count; i++)
703 if (replace_field (fname, list[i], 6, '0', field_str))
704 diff += 10; // slightly penalize scalable fonts
706 if (!set_properties (p, fname))
709 if (prop.height != rxvt_fontprop::unset
710 && p.height > prop.height) // weed out too large fonts
713 if (prop.height != rxvt_fontprop::unset) diff += (prop.height - p.height) * 128;
714 if (prop.weight != rxvt_fontprop::unset) diff += abs (prop.weight - p.weight);
715 if (prop.slant != rxvt_fontprop::unset) diff += abs (prop.slant - p.slant);
716 //if (prop.width != rxvt_fontprop::unset) diff += abs (prop.width - p.width);
718 if (!name // compare against best found so far
721 set_name (strdup (fname));
726 XFreeFontNames (list);
731 f = XLoadQueryFont (DISPLAY, name);
736 char *registry = get_property (f, "CHARSET_REGISTRY", 0);
737 char *encoding = get_property (f, "CHARSET_ENCODING", 0);
739 if (registry && encoding)
742 snprintf (charset, 64, "%s-%s", registry, encoding);
744 cs = codeset_from_name (charset);
748 const char *charset = get_property (f, "FONT", 0);
755 if (*charset++ == '-' && !--count)
758 cs = codeset_from_name (charset);
764 if (cs == CS_UNICODE)
765 cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font
767 encm = f->min_byte1 != 0 || f->max_byte1 != 0;
768 enc2b = encm || f->max_char_or_byte2 > 255;
771 descent = f->descent;
772 height = ascent + descent;
776 #if 1 // only used for slow detection, TODO optimize
777 if (f->min_bounds.width == f->max_bounds.width)
778 width = f->min_bounds.width;
779 else if (f->per_char == NULL)
780 width = f->max_bounds.width;
785 int N = f->max_char_or_byte2 - f->min_char_or_byte2;
788 N += (f->max_byte1 - f->min_byte1)
789 * (f->max_char_or_byte2 - f->min_char_or_byte2 + 1);
793 if (f->per_char[N].width > width)
794 width = f->per_char[N].width;
803 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; )
807 && FROM_UNICODE (cs, *t) == NOCHAR)
810 // ignore characters we wouldn't use anyways
812 if (!has_char (*t, &prop, careful))
815 XChar2b ch = { *t >> 8, *t };
818 int dir_ret, asc_ret, des_ret;
819 XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g);
821 int wcw = wcwidth (*t); if (wcw > 0) g.width = g.width / wcw;
823 if (width < g.width) width = g.width;
826 if (cs == CS_UNKNOWN)
828 fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name);
834 #if 0 // do it per-character
835 if (prop && width > prop->width)
846 rxvt_font_x11::clear ()
850 XFreeFont (DISPLAY, f);
856 rxvt_font_x11::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful)
858 uint32_t ch = FROM_UNICODE (cs, unicode);
863 /* check wether the character exists in _this_ font. horrible. */
868 unsigned char byte1 = ch >> 8;
869 unsigned char byte2 = ch & 255;
871 if (byte1 < f->min_byte1 || byte1 > f->max_byte1
872 || byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2)
877 int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1;
878 int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2;
880 xcs = f->per_char + N;
883 xcs = &f->max_bounds;
887 if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2)
891 xcs = f->per_char + (ch - f->min_char_or_byte2);
893 xcs = &f->max_bounds;
896 if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0
897 && xcs->ascent == 0 && xcs->descent == 0)
900 if (!prop || prop->width == rxvt_fontprop::unset)
903 // check character against base font bounding box
905 int wcw = wcwidth (unicode);
906 if (wcw > 0) w /= wcw;
908 careful = w > prop->width;
909 if (careful && w > prop->width * MAX_OVERLAP >> 2)
916 rxvt_font_x11::draw (rxvt_drawable &d, int x, int y,
917 const text_t *text, int len,
920 // this looks like a mess /.
921 // and it is a mess /.
922 // yet we are trying to be perfect /.
923 // but the result still isn't perfect /.
925 bool slow = this->slow
926 || width != r->TermWin.fwidth
927 || height != r->TermWin.fheight;
929 int base = ascent; // sorry, incorrect: r->TermWin.fbase;
932 v.foreground = r->pix_colors[fg];
937 const XChar2b *xc = enc_xchar2b (text, len, cs, slow);
939 if (bg == Color_bg && !slow)
941 v.background = r->pix_colors[bg];
942 XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v);
943 XDrawImageString16 (d.display->display, d, TGC, x, y + base, xc, len);
947 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
949 XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v);
955 if (xc->byte1 || xc->byte2)
956 XDrawString16 (d.display->display, d, TGC, x, y + base, xc, 1);
958 x += r->TermWin.fwidth;
964 XDrawString16 (d.display->display, d, TGC, x, y + base, xc, len);
969 const char *xc = enc_char (text, len, cs, slow);
971 if (bg == Color_bg && !slow)
973 v.background = r->pix_colors[bg];
974 XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v);
975 XDrawImageString (d.display->display, d, TGC, x, y + base, xc, len);
979 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
981 XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v);
988 XDrawString (d.display->display, d, TGC, x, y + base, xc, 1);
990 x += r->TermWin.fwidth;
996 XDrawString (d.display->display, d, TGC, x, y + base, xc, len);
1001 /////////////////////////////////////////////////////////////////////////////
1005 struct rxvt_font_xft : rxvt_font {
1006 rxvt_font_xft () { f = 0; }
1010 rxvt_fontprop properties ();
1012 bool load (const rxvt_fontprop &prop);
1014 void draw (rxvt_drawable &d, int x, int y,
1015 const text_t *text, int len,
1018 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &carefull);
1025 rxvt_font_xft::clear ()
1029 XftFontClose (DISPLAY, f);
1035 rxvt_font_xft::properties ()
1039 FT_Face face = XftLockFace (f);
1043 p.weight = face->style_flags & FT_STYLE_FLAG_BOLD
1044 ? rxvt_fontprop::bold : rxvt_fontprop::medium;
1045 p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC
1046 ? rxvt_fontprop::italic : rxvt_fontprop::roman;
1054 rxvt_font_xft::load (const rxvt_fontprop &prop)
1058 FcPattern *p = FcNameParse ((FcChar8 *) name);
1065 if (prop.height != rxvt_fontprop::unset
1066 || (FcPatternGet (p, FC_PIXEL_SIZE, 0, &v) != FcResultMatch
1067 && FcPatternGet (p, FC_SIZE, 0, &v) != FcResultMatch))
1068 FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height);
1070 if (prop.weight != rxvt_fontprop::unset
1071 && FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch)
1072 FcPatternAddInteger (p, FC_WEIGHT, prop.weight);
1074 if (prop.slant != rxvt_fontprop::unset
1075 && FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch)
1076 FcPatternAddInteger (p, FC_SLANT, prop.slant);
1078 #if 0 // clipping unfortunately destroys our precious double-width-characters
1079 // clip width, we can't do better, or can we?
1080 if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch)
1081 FcPatternAddInteger (p, FC_CHAR_WIDTH, prop->width);
1084 if (FcPatternGet (p, FC_MINSPACE, 0, &v) != FcResultMatch)
1085 FcPatternAddBool (p, FC_MINSPACE, 1);
1087 // store generated name so iso14755 view gives better results
1088 set_name ((char *)FcNameUnparse (p));
1091 FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result);
1093 FcPatternDestroy (p);
1099 bool success = true;
1103 f = XftFontOpenPattern (DISPLAY, FcPatternDuplicate (match));
1111 FT_Face face = XftLockFace (f);
1113 ascent = (face->size->metrics.ascender + 63) >> 6;
1114 descent = (-face->size->metrics.descender + 63) >> 6;
1115 height = max (ascent + descent, (face->size->metrics.height + 63) >> 6);
1118 bool scalable = face->face_flags & FT_FACE_FLAG_SCALABLE;
1122 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; )
1126 if (cs != CS_UNICODE
1128 && FROM_UNICODE (cs, ch) == NOCHAR)
1131 // ignore characters we wouldn't use anyways
1133 if (!has_char (*t, &prop, careful))
1137 XftTextExtents16 (DISPLAY, f, &ch, 1, &g);
1139 int wcw = wcwidth (ch);
1140 if (wcw > 0) g.width = g.width / wcw;
1142 if (width < g.width) width = g.width;
1143 if (height < g.height) height = g.height;
1146 if (prop.height == rxvt_fontprop::unset
1147 || height <= prop.height
1154 // take smaller steps near the end
1155 if (height > prop.height + 1) ftheight++;
1156 if (height > prop.height + 2) ftheight++;
1157 if (height > prop.height + 3) ftheight++;
1159 ftheight -= height - prop.height;
1162 ftheight = prop.height - 1;
1164 XftFontClose (DISPLAY, f);
1165 FcPatternDel (match, FC_PIXEL_SIZE);
1166 FcPatternAddInteger (match, FC_PIXEL_SIZE, ftheight);
1169 FcPatternDestroy (match);
1171 #if 0 // do it per-character
1172 if (prop.width != rxvt_fontprop::unset && width > prop.width)
1183 rxvt_font_xft::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful)
1187 if (!XftCharExists (DISPLAY, f, unicode))
1190 if (!prop || prop->width == rxvt_fontprop::unset)
1193 // check character against base font bounding box
1194 FcChar32 ch = unicode;
1196 XftTextExtents32 (DISPLAY, f, &ch, 1, &g);
1199 int wcw = wcwidth (unicode);
1200 if (wcw > 0) w /= wcw;
1202 careful = w > prop->width;
1203 if (careful && w > prop->width * MAX_OVERLAP >> 2)
1210 rxvt_font_xft::draw (rxvt_drawable &d, int x, int y,
1211 const text_t *text, int len,
1214 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
1216 int base = ascent; // should be fbase, but that is incorrect
1219 FcChar32 *enc = (FcChar32 *) get_enc_buf (len * sizeof (FcChar32));
1226 int cwidth = r->TermWin.fwidth;
1227 FcChar32 fc = *text++; len--;
1230 while (len && *text == NOCHAR)
1231 text++, len--, cwidth += r->TermWin.fwidth;
1233 gl = XftCharIndex (d.display->display, f, fc);
1234 XftGlyphExtents (d.display->display, f, &gl, 1, &extents);
1236 if (extents.xOff != cwidth && ep != enc)
1238 if (xoff > ewidth) xoff = ewidth;
1239 XftDrawGlyphs (d, &r->pix_colors[fg].c, f,
1240 x + (ewidth - xoff >> 1),
1241 y + base, enc, ep - enc);
1249 if (fc == ' ' && ep == enc) // skip leading spaces
1259 xoff += extents.xOff;
1265 if (xoff > ewidth) xoff = ewidth;
1266 XftDrawGlyphs (d, &r->pix_colors[fg].c, f,
1267 x + (ewidth - xoff >> 1),
1268 y + base, enc, ep - enc);
1273 /////////////////////////////////////////////////////////////////////////////
1275 rxvt_fontset::rxvt_fontset (rxvt_t r)
1276 : r (r), fontdesc (0)
1281 rxvt_fontset::~rxvt_fontset ()
1287 rxvt_fontset::clear ()
1289 prop.width = prop.height = prop.weight = prop.slant
1290 = rxvt_fontprop::unset;
1292 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++)
1295 for (pagemap **p = fmap.begin (); p != fmap.end (); p++)
1298 free (fontdesc); fontdesc = 0;
1302 fallback = fallback_fonts;
1306 rxvt_fontset::new_font (const char *name, codeset cs)
1310 if (!name || !*name)
1313 f = new rxvt_font_default (this);
1316 else if (!strncmp (name, "xft:", 4))
1319 f = new rxvt_font_xft ();
1322 else if (!strncmp (name, "x:", 2))
1325 f = new rxvt_font_x11;
1328 f = new rxvt_font_x11;
1331 f->set_name (strdup (name));
1339 /////////////////////////////////////////////////////////////////////////////
1342 rxvt_fontset::add_fonts (const char *desc)
1351 while (*desc <= ' ') desc++;
1353 codeset cs = CS_UNICODE;
1358 const char *extra = ++desc; // not yet used
1360 desc = strchr (desc, ']');
1364 rxvt_warn ("ERROR: opening '[' without closing ']' in font specification, trying to continue.\n");
1368 memcpy (spec, extra, min (desc - extra, 255));
1369 spec[min (desc - extra, 255)] = 0;
1371 if (!strncmp (extra, "codeset=", sizeof ("codeset=") - 1))
1372 cs = codeset_from_name (spec + sizeof ("codeset=") - 1);
1374 rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec);
1377 while (*desc <= ' ') desc++;
1380 end = strchr (desc, ',');
1382 end = desc + strlen (desc);
1384 if (end - desc < 511)
1386 strncpy (buf, desc, end - desc);
1387 buf[end - desc] = 0;
1389 fonts.push_back (new_font (buf, cs));
1392 rxvt_warn ("fontset element too long (>511 bytes), ignored.");
1401 rxvt_fontset::realize_font (int i)
1403 if (i < 0 || i >= fonts.size ())
1406 if (fonts[i]->loaded)
1409 fonts[i]->loaded = true;
1411 if (!fonts[i]->load (prop))
1413 fonts[i]->cs = CS_UNKNOWN;
1421 rxvt_fontset::populate (const char *desc)
1425 fontdesc = strdup (desc);
1427 fonts.push_back (new_font (0, CS_UNICODE));
1436 rxvt_fontset::find_font (const char *name) const
1438 for (rxvt_font *const *f = fonts.begin (); f < fonts.end (); f++)
1439 if ((*f)->name && !strcmp ((*f)->name, name))
1440 return f - fonts.begin ();
1446 rxvt_fontset::find_font (unicode_t unicode)
1448 if (unicode >= 1<<20)
1451 unicode_t hi = unicode >> 8;
1453 if (hi < fmap.size ()
1455 && (*fmap[hi])[unicode & 0xff] != 0xff)
1456 return (*fmap[hi])[unicode & 0xff];
1460 for (i = 0; i < fonts.size (); i++)
1462 rxvt_font *f = fonts[i];
1466 if (FROM_UNICODE (f->cs, unicode) == NOCHAR)
1469 if (!realize_font (i))
1473 if (f->cs == CS_UNKNOWN)
1477 if (f->has_char (unicode, &prop, careful))
1486 if (i == fonts.size () - 1)
1490 // search through the fallback list
1491 fonts.push_back (new_font (fallback->name, fallback->cs));
1496 // try to find a new font.
1497 // only xft currently supported, as there is no
1498 // way to configure this and xft is easier to hack in,
1499 // while x11 has more framework in place already.
1500 // TODO: this is a real resource hog, xft takes ages(?)
1501 #if XFT && USE_SLOW_LOOKUP
1502 // grab the first xft font that seems suitable
1503 FcPattern *p = FcPatternCreate ();
1505 FcCharSet *s = FcCharSetCreate ();
1506 FcCharSetAddChar (s, unicode);
1507 FcPatternAddCharSet (p, FC_CHARSET, s);
1508 // charsets don't help that much, as xft might return
1509 // a non-matching font even if a better font is available :/
1511 x x x x TODO prop might have unset contents
1512 FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height);
1513 FcPatternAddInteger (p, FC_WEIGHT, prop.weight);
1514 FcPatternAddInteger (p, FC_SLANT, prop.slant);
1515 FcPatternAddBool (p, FC_MINSPACE, 1);
1516 //FcPatternAddBool (p, FC_ANTIALIAS, 1);
1519 FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result);
1521 FcPatternDestroy (p);
1525 FcPatternDel (match, FC_CHARSET);
1526 char *font = (char *)FcNameUnparse (match);
1527 FcPatternDestroy (match);
1529 if (find_font (font) < 0)
1531 char fontname[4096];
1532 sprintf (fontname, "xft:%-.4090s", font);
1534 fonts.push_back (new_font (fontname, CS_UNICODE));
1544 /* we must return SOME font */
1548 // found a font, cache it
1551 while (hi >= fmap.size ())
1556 fmap[hi] = (pagemap *)new pagemap;
1557 memset (fmap[hi], 0xff, sizeof (pagemap));
1560 (*fmap[hi])[unicode & 0xff] = i;