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 * wcwidth (t);
349 int H = r->TermWin.fheight;
354 for (int i = 0; i <= 8; i++)
356 x_[i] = x + ((W-1) * i + (i*7/8)) / 8;
357 y_[i] = y + ((H-1) * i + (i*7/8)) / 8;
360 x_[10] = x + (W - 1) / 2; x_[9] = x_[10] - 1; x_[11] = x_[10] + 1;
361 y_[10] = y + (H - 1) / 2; y_[9] = y_[10] - 1; y_[11] = y_[10] + 1;
365 gcv.cap_style = CapButt;
367 XChangeGC (d.display->display, TGC, GCLineWidth | GCCapStyle, &gcv);
371 uint32_t command = *a++;
373 int op = (command >> 24) & 255;
374 int a = (command >> 20) & 15;
375 int b = (command >> 16) & 15;
376 int x1 = x_[(command >> 12) & 15];
377 int y1 = y_[(command >> 8) & 15];
378 int x2 = x_[(command >> 4) & 15];
379 int y2 = y_[(command >> 0) & 15];
384 XDrawLine (d.display->display, d, TGC, x1, y1, x2, y2);
387 case 1: // rectangle, possibly stippled
390 static char bm[] = { 0,0 , 3,1 , 1,2 , 1,0 };
392 gcv.fill_style = FillStippled;
393 gcv.stipple = XCreateBitmapFromData (d.display->display, d, bm + a * 2, 2, 2);
397 XChangeGC (d.display->display, TGC,
398 GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin,
402 XFillRectangle (d.display->display, d, TGC, x1, y1, x2 - x1 + 1, y2 - y1 + 1);
406 XFreePixmap (d.display->display, gcv.stipple);
408 gcv.fill_style = FillSolid;
409 XChangeGC (d.display->display, TGC, GCFillStyle, &gcv);
413 XDrawArc (d.display->display, d, TGC,
414 x1 - W/2, y1 - H/2, W-1, H-1,
415 (a - 1) * 90*64, (b - 1) * 90*64);
421 else if (IS_COMPOSE (t) && (cc = rxvt_composite[t]))
426 // support double-width (but not more) combining characters
427 if (len && *text == NOCHAR)
429 c2[1] = *text; // not text++ to get correct x-width
434 rxvt_font *f1 = (*fs)[fs->find_font (c2[0])];
435 f1->draw (d, x, y, c2, len2, fg, bg);
437 if (cc->c2 != NOCHAR)
441 // prefer font of first character, for no good reasons
443 rxvt_font *f2 = (f1->has_char (c2[0], 0, careful) && !careful)
445 : (*fs)[fs->find_font (c2[0])];
447 f2->draw (d, x, y, c2, len2, fg, -1);
455 case ZERO_WIDTH_CHAR:
461 while (len > 0 && *text == NOCHAR)
465 w += r->TermWin.fwidth;
468 XDrawRectangle (d.display->display, d, TGC, x + 2, y + 2,
469 w + r->TermWin.fwidth - 4, r->TermWin.fheight - 4);
473 x += r->TermWin.fwidth;
477 /////////////////////////////////////////////////////////////////////////////
479 struct rxvt_font_x11 : rxvt_font {
480 rxvt_font_x11 () { f = 0; }
484 rxvt_fontprop properties ();
486 bool load (const rxvt_fontprop &prop);
488 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful);
490 void draw (rxvt_drawable &d, int x, int y,
491 const text_t *text, int len,
494 bool slow; // wether this is a proportional font or has other funny characteristics
499 char *get_property (XFontStruct *f, const char *property, const char *repl) const;
500 bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth);
501 bool set_properties (rxvt_fontprop &p, XFontStruct *f);
502 bool set_properties (rxvt_fontprop &p, const char *name);
506 rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const
510 if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value))
511 return XGetAtomName (DISPLAY, value);
513 return rxvt_strdup (repl);
517 rxvt_font_x11::properties ()
520 set_properties (p, f);
525 rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth)
527 p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2;
529 p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium;
530 p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic;
536 rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f)
538 unsigned long height;
539 if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height))
542 unsigned long avgwidth;
543 if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth))
546 char *weight = get_property (f, "WEIGHT_NAME", "medium");
547 char *slant = get_property (f, "SLANT", "r");
549 set_properties (p, height, weight, slant, avgwidth);
558 rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name)
561 const char *comp[13];
563 for (const char *c = name; *c; c++)
566 comp[slashes++] = c + 1;
571 /* can we short-circuit the costly XLoadQueryFont? */
573 && (*comp[ 6] >= '1' && *comp[ 6] <= '9')
574 && (*comp[11] >= '0' && *comp[11] <= '9'))
575 return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11]));
577 XFontStruct *f = XLoadQueryFont (DISPLAY, name);
581 // the font should really exist now. if not, we have a problem
582 // (e.g. if the user did xset fp rehash just when we were searching fonts).
583 // in that case, just return garbage.
584 bool ret = set_properties (p, f);
585 XFreeFont (DISPLAY, f);
592 // fix the size of scalable fonts
594 replace_field (char *buf, const char *name, int index, const char old, const char *replace)
597 const char *field, *end;
599 for (const char *c = name; *c; c++)
602 if (slashes == index)
605 if (slashes == index + 1)
612 if (slashes >= 13 && (!old || *field == old))
614 // TODO: check for overflow in font-name
615 strncpy (buf, name, field - name);
617 strcpy (buf, replace);
631 rxvt_font_x11::load (const rxvt_fontprop &prop)
635 char field_str[64]; // enough for 128 bits
637 // first morph the font if required
638 if (prop.weight != rxvt_fontprop::unset
639 || prop.slant != rxvt_fontprop::unset)
645 f = XLoadQueryFont (DISPLAY, name);
650 char *new_name = get_property (f, "FONT", name);
655 rxvt_warn ("font '%s' has no FONT property, continuing without.", name);
657 XFreeFont (DISPLAY, f);
661 if (prop.weight != rxvt_fontprop::unset)
663 replace_field (fname, name, 2, 0,
664 prop.weight < rxvt_fontprop::bold
665 ? "medium" : "bold");
666 set_name (strdup (fname));
669 if (prop.slant != rxvt_fontprop::unset)
671 replace_field (fname, name, 3, 0,
672 prop.slant < rxvt_fontprop::italic
673 ? "r" : "i"); // TODO: handle "o"blique, too
674 set_name (strdup (fname));
680 list = XListFonts (DISPLAY, name, 1024, &count);
687 sprintf (field_str, "%d", prop.height == rxvt_fontprop::unset
690 int bestdiff = 0x7fffffff;
691 for (int i = 0; i < count; i++)
698 if (replace_field (fname, list[i], 6, '0', field_str))
699 diff += 10; // slightly penalize scalable fonts
701 if (!set_properties (p, fname))
704 if (prop.height != rxvt_fontprop::unset
705 && p.height > prop.height) // weed out too large fonts
708 if (prop.height != rxvt_fontprop::unset) diff += (prop.height - p.height) * 128;
709 if (prop.weight != rxvt_fontprop::unset) diff += abs (prop.weight - p.weight);
710 if (prop.slant != rxvt_fontprop::unset) diff += abs (prop.slant - p.slant);
711 //if (prop.width != rxvt_fontprop::unset) diff += abs (prop.width - p.width);
713 if (!name // compare against best found so far
716 set_name (strdup (fname));
721 XFreeFontNames (list);
726 f = XLoadQueryFont (DISPLAY, name);
731 char *registry = get_property (f, "CHARSET_REGISTRY", 0);
732 char *encoding = get_property (f, "CHARSET_ENCODING", 0);
734 if (registry && encoding)
737 snprintf (charset, 64, "%s-%s", registry, encoding);
739 cs = codeset_from_name (charset);
743 const char *charset = get_property (f, "FONT", 0);
750 if (*charset++ == '-' && !--count)
753 cs = codeset_from_name (charset);
759 if (cs == CS_UNICODE)
760 cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font
762 encm = f->min_byte1 != 0 || f->max_byte1 != 0;
763 enc2b = encm || f->max_char_or_byte2 > 255;
766 descent = f->descent;
767 height = ascent + descent;
771 #if 1 // only used for slow detection, TODO optimize
772 if (f->min_bounds.width == f->max_bounds.width)
773 width = f->min_bounds.width;
774 else if (f->per_char == NULL)
775 width = f->max_bounds.width;
780 int N = f->max_char_or_byte2 - f->min_char_or_byte2;
783 N += (f->max_byte1 - f->min_byte1)
784 * (f->max_char_or_byte2 - f->min_char_or_byte2 + 1);
788 if (f->per_char[N].width > width)
789 width = f->per_char[N].width;
798 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; )
802 && FROM_UNICODE (cs, *t) == NOCHAR)
805 // ignore characters we wouldn't use anyways
807 if (!has_char (*t, &prop, careful))
810 XChar2b ch = { *t >> 8, *t };
813 int dir_ret, asc_ret, des_ret;
814 XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g);
816 int wcw = wcwidth (*t); if (wcw > 0) g.width = g.width / wcw;
818 if (width < g.width) width = g.width;
821 if (cs == CS_UNKNOWN)
823 fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name);
829 #if 0 // do it per-character
830 if (prop && width > prop->width)
841 rxvt_font_x11::clear ()
845 XFreeFont (DISPLAY, f);
851 rxvt_font_x11::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful)
853 uint32_t ch = FROM_UNICODE (cs, unicode);
858 /* check wether the character exists in _this_ font. horrible. */
863 unsigned char byte1 = ch >> 8;
864 unsigned char byte2 = ch & 255;
866 if (byte1 < f->min_byte1 || byte1 > f->max_byte1
867 || byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2)
872 int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1;
873 int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2;
875 xcs = f->per_char + N;
878 xcs = &f->max_bounds;
882 if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2)
886 xcs = f->per_char + (ch - f->min_char_or_byte2);
888 xcs = &f->max_bounds;
891 if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0
892 && xcs->ascent == 0 && xcs->descent == 0)
895 if (!prop || prop->width == rxvt_fontprop::unset)
898 // check character against base font bounding box
900 int wcw = wcwidth (unicode);
901 if (wcw > 0) w /= wcw;
903 careful = w > prop->width;
904 if (careful && w > prop->width * MAX_OVERLAP >> 2)
911 rxvt_font_x11::draw (rxvt_drawable &d, int x, int y,
912 const text_t *text, int len,
915 // this looks like a mess /.
916 // and it is a mess /.
917 // yet we are trying to be perfect /.
918 // but the result still isn't perfect /.
920 bool slow = this->slow
921 || width != r->TermWin.fwidth
922 || height != r->TermWin.fheight;
924 int base = ascent; // sorry, incorrect: r->TermWin.fbase;
927 v.foreground = r->pix_colors[fg];
932 const XChar2b *xc = enc_xchar2b (text, len, cs, slow);
934 if (bg == Color_bg && !slow)
936 v.background = r->pix_colors[bg];
937 XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v);
938 XDrawImageString16 (d.display->display, d, TGC, x, y + base, xc, len);
942 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
944 XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v);
950 if (xc->byte1 || xc->byte2)
951 XDrawString16 (d.display->display, d, TGC, x, y + base, xc, 1);
953 x += r->TermWin.fwidth;
959 XDrawString16 (d.display->display, d, TGC, x, y + base, xc, len);
964 const char *xc = enc_char (text, len, cs, slow);
966 if (bg == Color_bg && !slow)
968 v.background = r->pix_colors[bg];
969 XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v);
970 XDrawImageString (d.display->display, d, TGC, x, y + base, xc, len);
974 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
976 XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v);
983 XDrawString (d.display->display, d, TGC, x, y + base, xc, 1);
985 x += r->TermWin.fwidth;
991 XDrawString (d.display->display, d, TGC, x, y + base, xc, len);
996 /////////////////////////////////////////////////////////////////////////////
1000 struct rxvt_font_xft : rxvt_font {
1001 rxvt_font_xft () { f = 0; }
1005 rxvt_fontprop properties ();
1007 bool load (const rxvt_fontprop &prop);
1009 void draw (rxvt_drawable &d, int x, int y,
1010 const text_t *text, int len,
1013 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &carefull);
1020 rxvt_font_xft::clear ()
1024 XftFontClose (DISPLAY, f);
1030 rxvt_font_xft::properties ()
1034 FT_Face face = XftLockFace (f);
1038 p.weight = face->style_flags & FT_STYLE_FLAG_BOLD
1039 ? rxvt_fontprop::bold : rxvt_fontprop::medium;
1040 p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC
1041 ? rxvt_fontprop::italic : rxvt_fontprop::roman;
1049 rxvt_font_xft::load (const rxvt_fontprop &prop)
1053 FcPattern *p = FcNameParse ((FcChar8 *) name);
1060 if (prop.height != rxvt_fontprop::unset
1061 || (FcPatternGet (p, FC_PIXEL_SIZE, 0, &v) != FcResultMatch
1062 && FcPatternGet (p, FC_SIZE, 0, &v) != FcResultMatch))
1063 FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height);
1065 if (prop.weight != rxvt_fontprop::unset
1066 && FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch)
1067 FcPatternAddInteger (p, FC_WEIGHT, prop.weight);
1069 if (prop.slant != rxvt_fontprop::unset
1070 && FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch)
1071 FcPatternAddInteger (p, FC_SLANT, prop.slant);
1073 #if 0 // clipping unfortunately destroys our precious double-width-characters
1074 // clip width, we can't do better, or can we?
1075 if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch)
1076 FcPatternAddInteger (p, FC_CHAR_WIDTH, prop->width);
1079 if (FcPatternGet (p, FC_MINSPACE, 0, &v) != FcResultMatch)
1080 FcPatternAddBool (p, FC_MINSPACE, 1);
1082 // store generated name so iso14755 view gives better results
1083 set_name ((char *)FcNameUnparse (p));
1086 FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result);
1088 FcPatternDestroy (p);
1094 bool success = true;
1098 f = XftFontOpenPattern (DISPLAY, FcPatternDuplicate (match));
1106 FT_Face face = XftLockFace (f);
1108 ascent = (face->size->metrics.ascender + 63) >> 6;
1109 descent = (-face->size->metrics.descender + 63) >> 6;
1110 height = max (ascent + descent, (face->size->metrics.height + 63) >> 6);
1113 bool scalable = face->face_flags & FT_FACE_FLAG_SCALABLE;
1117 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; )
1121 if (cs != CS_UNICODE
1123 && FROM_UNICODE (cs, ch) == NOCHAR)
1126 // ignore characters we wouldn't use anyways
1128 if (!has_char (*t, &prop, careful))
1132 XftTextExtents16 (DISPLAY, f, &ch, 1, &g);
1134 int wcw = wcwidth (ch);
1135 if (wcw > 0) g.width = g.width / wcw;
1137 if (width < g.width) width = g.width;
1138 if (height < g.height) height = g.height;
1141 if (prop.height == rxvt_fontprop::unset
1142 || height <= prop.height
1149 // take smaller steps near the end
1150 if (height > prop.height + 1) ftheight++;
1151 if (height > prop.height + 2) ftheight++;
1152 if (height > prop.height + 3) ftheight++;
1154 ftheight -= height - prop.height;
1157 ftheight = prop.height - 1;
1159 XftFontClose (DISPLAY, f);
1160 FcPatternDel (match, FC_PIXEL_SIZE);
1161 FcPatternAddInteger (match, FC_PIXEL_SIZE, ftheight);
1164 FcPatternDestroy (match);
1166 #if 0 // do it per-character
1167 if (prop.width != rxvt_fontprop::unset && width > prop.width)
1178 rxvt_font_xft::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful)
1182 if (!XftCharExists (DISPLAY, f, unicode))
1185 if (!prop || prop->width == rxvt_fontprop::unset)
1188 // check character against base font bounding box
1189 FcChar32 ch = unicode;
1191 XftTextExtents32 (DISPLAY, f, &ch, 1, &g);
1194 int wcw = wcwidth (unicode);
1195 if (wcw > 0) w /= wcw;
1197 careful = w > prop->width;
1198 if (careful && w > prop->width * MAX_OVERLAP >> 2)
1205 rxvt_font_xft::draw (rxvt_drawable &d, int x, int y,
1206 const text_t *text, int len,
1209 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
1211 int base = ascent; // should be fbase, but that is incorrect
1214 FcChar32 *enc = (FcChar32 *) get_enc_buf (len * sizeof (FcChar32));
1221 int cwidth = r->TermWin.fwidth;
1222 FcChar32 fc = *text++; len--;
1225 while (len && *text == NOCHAR)
1226 text++, len--, cwidth += r->TermWin.fwidth;
1228 gl = XftCharIndex (d.display->display, f, fc);
1229 XftGlyphExtents (d.display->display, f, &gl, 1, &extents);
1231 if (extents.xOff != cwidth && ep != enc)
1233 if (xoff > ewidth) xoff = ewidth;
1234 XftDrawGlyphs (d, &r->pix_colors[fg].c, f,
1235 x + (ewidth - xoff >> 1),
1236 y + base, enc, ep - enc);
1244 if (fc == ' ' && ep == enc) // skip leading spaces
1254 xoff += extents.xOff;
1260 if (xoff > ewidth) xoff = ewidth;
1261 XftDrawGlyphs (d, &r->pix_colors[fg].c, f,
1262 x + (ewidth - xoff >> 1),
1263 y + base, enc, ep - enc);
1268 /////////////////////////////////////////////////////////////////////////////
1270 rxvt_fontset::rxvt_fontset (rxvt_t r)
1271 : r (r), fontdesc (0)
1276 rxvt_fontset::~rxvt_fontset ()
1282 rxvt_fontset::clear ()
1284 prop.width = prop.height = prop.weight = prop.slant
1285 = rxvt_fontprop::unset;
1287 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++)
1290 for (pagemap **p = fmap.begin (); p != fmap.end (); p++)
1293 free (fontdesc); fontdesc = 0;
1297 fallback = fallback_fonts;
1301 rxvt_fontset::new_font (const char *name, codeset cs)
1305 if (!name || !*name)
1308 f = new rxvt_font_default (this);
1311 else if (!strncmp (name, "xft:", 4))
1314 f = new rxvt_font_xft ();
1317 else if (!strncmp (name, "x:", 2))
1320 f = new rxvt_font_x11;
1323 f = new rxvt_font_x11;
1326 f->set_name (strdup (name));
1334 /////////////////////////////////////////////////////////////////////////////
1337 rxvt_fontset::add_fonts (const char *desc)
1346 while (*desc <= ' ') desc++;
1348 codeset cs = CS_UNICODE;
1353 const char *extra = ++desc; // not yet used
1355 desc = strchr (desc, ']');
1359 rxvt_warn ("ERROR: opening '[' without closing ']' in font specification, trying to continue.\n");
1363 memcpy (spec, extra, min (desc - extra, 255));
1364 spec[min (desc - extra, 255)] = 0;
1366 if (!strncmp (extra, "codeset=", sizeof ("codeset=") - 1))
1367 cs = codeset_from_name (spec + sizeof ("codeset=") - 1);
1369 rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec);
1372 while (*desc <= ' ') desc++;
1375 end = strchr (desc, ',');
1377 end = desc + strlen (desc);
1379 if (end - desc < 511)
1381 strncpy (buf, desc, end - desc);
1382 buf[end - desc] = 0;
1384 fonts.push_back (new_font (buf, cs));
1387 rxvt_warn ("fontset element too long (>511 bytes), ignored.");
1396 rxvt_fontset::realize_font (int i)
1398 if (i < 0 || i >= fonts.size ())
1401 if (fonts[i]->loaded)
1404 fonts[i]->loaded = true;
1406 if (!fonts[i]->load (prop))
1408 fonts[i]->cs = CS_UNKNOWN;
1416 rxvt_fontset::populate (const char *desc)
1420 fontdesc = strdup (desc);
1422 fonts.push_back (new_font (0, CS_UNICODE));
1431 rxvt_fontset::find_font (const char *name) const
1433 for (rxvt_font *const *f = fonts.begin (); f < fonts.end (); f++)
1434 if ((*f)->name && !strcmp ((*f)->name, name))
1435 return f - fonts.begin ();
1441 rxvt_fontset::find_font (unicode_t unicode)
1443 if (unicode >= 1<<20)
1446 unicode_t hi = unicode >> 8;
1448 if (hi < fmap.size ()
1450 && (*fmap[hi])[unicode & 0xff] != 0xff)
1451 return (*fmap[hi])[unicode & 0xff];
1455 for (i = 0; i < fonts.size (); i++)
1457 rxvt_font *f = fonts[i];
1461 if (FROM_UNICODE (f->cs, unicode) == NOCHAR)
1464 if (!realize_font (i))
1468 if (f->cs == CS_UNKNOWN)
1472 if (f->has_char (unicode, &prop, careful))
1481 if (i == fonts.size () - 1)
1485 // search through the fallback list
1486 fonts.push_back (new_font (fallback->name, fallback->cs));
1491 // try to find a new font.
1492 // only xft currently supported, as there is no
1493 // way to configure this and xft is easier to hack in,
1494 // while x11 has more framework in place already.
1495 // TODO: this is a real resource hog, xft takes ages(?)
1496 #if XFT && USE_SLOW_LOOKUP
1497 // grab the first xft font that seems suitable
1498 FcPattern *p = FcPatternCreate ();
1500 FcCharSet *s = FcCharSetCreate ();
1501 FcCharSetAddChar (s, unicode);
1502 FcPatternAddCharSet (p, FC_CHARSET, s);
1503 // charsets don't help that much, as xft might return
1504 // a non-matching font even if a better font is available :/
1506 x x x x TODO prop might have unset contents
1507 FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height);
1508 FcPatternAddInteger (p, FC_WEIGHT, prop.weight);
1509 FcPatternAddInteger (p, FC_SLANT, prop.slant);
1510 FcPatternAddBool (p, FC_MINSPACE, 1);
1511 //FcPatternAddBool (p, FC_ANTIALIAS, 1);
1514 FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result);
1516 FcPatternDestroy (p);
1520 FcPatternDel (match, FC_CHARSET);
1521 char *font = (char *)FcNameUnparse (match);
1522 FcPatternDestroy (match);
1524 if (find_font (font) < 0)
1526 char fontname[4096];
1527 sprintf (fontname, "xft:%-.4090s", font);
1529 fonts.push_back (new_font (fontname, CS_UNICODE));
1539 /* we must return SOME font */
1543 // found a font, cache it
1546 while (hi >= fmap.size ())
1551 fmap[hi] = (pagemap *)new pagemap;
1552 memset (fmap[hi], 0xff, sizeof (pagemap));
1555 (*fmap[hi])[unicode & 0xff] = i;