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_GBK_0, "xft:AR PL KaitiM GB" },
96 { CS_GBK_0, "xft:AR PL SungtiL GB" },
97 { CS_GBK_0, "xft::spacing=100:lang=zh" },
98 { CS_BIG5_EXT, "xft:AR PL Mingti2L Big5" },
99 { CS_BIG5_EXT, "xft:AR PL KaitiM Big5" },
100 { CS_GB2312_1980_0, "xft:AR PL KaitiM GB" },
101 { CS_GB2312_1980_0, "xft:AR PL SungtiL GB" },
102 { CS_GB2312_1980_0, "xft::spacing=100:lang=zh" },
104 { CS_GBK_0, "-*-*-*-*-*-*-*-*-*-*-c-*-gbk*-0" },
105 { CS_BIG5, "-*-*-*-*-*-*-*-*-*-*-c-*-big5-0" },
106 { CS_BIG5_PLUS, "-*-*-*-*-*-*-*-*-*-*-c-*-big5p-0" },
107 { CS_BIG5_EXT, "-*-*-*-*-*-*-*-*-*-*-c-*-big5.eten-0" },
108 { CS_GB2312_1980_0, "-*-*-*-*-*-*-*-*-*-*-c-*-gb2312*-0" },
109 { CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-gb2312*-0" },
110 { CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-1" },
111 { CS_CNS11643_1992_2, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-2" },
112 { CS_CNS11643_1992_3, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-3" },
113 { CS_CNS11643_1992_4, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-4" },
114 { CS_CNS11643_1992_5, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-5" },
115 { CS_CNS11643_1992_6, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-6" },
116 { CS_CNS11643_1992_7, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-7" },
117 { CS_CNS11643_1992_F, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-f" },
121 { CS_KSC5601_1987_0, "-baekmuk-gulim-*-*-*-*-*-*-*-*-c-*-ksc5601*" },
122 { CS_KSC5601_1987_0, "-*-*-*-*-*-*-*-*-*-*-c-*-ksc5601*" },
124 { CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" },
125 { CS_KSC5601_1987_0, "xft::spacing=100:lang=ko:antialias=false" },
129 // generic font fallback
130 { CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" },
131 { CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" },
132 { CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" },
133 { CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" },
135 { CS_UNICODE, "xft:Bitstream Vera Sans Mono:antialias=false:autohint=true"},
136 { CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" },
137 { CS_UNICODE, "xft:Andale Mono:antialias=false" },
138 { CS_UNICODE, "xft:Arial Unicode MS:antialias=false" },
140 // FreeMono is usually uglier than x fonts, so try last only.
141 { CS_UNICODE, "xft:FreeMono:autohint=true" },
147 // these characters are used to guess the font height and width
148 // pango uses a similar algorithm and doesn't trust the font either.
149 static uint16_t extent_test_chars[] = {
150 '0', '1', '8', 'a', 'd', 'x', 'm', 'y', 'g', 'W', 'X', '\'', '_',
151 0x00cd, 0x00d5, 0x0114, 0x0177, 0x0643, // ÍÕĔŷﻙ
152 0x304c, 0x672c, // が本
155 #define NUM_EXTENT_TEST_CHARS (sizeof (extent_test_chars) / sizeof (extent_test_chars[0]))
157 /////////////////////////////////////////////////////////////////////////////
160 rxvt_drawable::~rxvt_drawable ()
163 XftDrawDestroy (xftdrawable);
166 rxvt_drawable::operator XftDraw *()
169 xftdrawable = XftDrawCreate (display->display, drawable, display->visual, display->cmap);
175 /////////////////////////////////////////////////////////////////////////////
177 static void *enc_buf;
178 static uint32_t enc_len;
181 get_enc_buf (uint32_t len)
186 enc_buf = malloc (len);
194 enc_char (const text_t *text, uint32_t len, codeset cs, bool &zero)
196 uint8_t *buf = (uint8_t *)get_enc_buf (len);
200 uint32_t c = FROM_UNICODE (cs, *text++);
211 return (const char *)enc_buf;
214 static const XChar2b *
215 enc_xchar2b (const text_t *text, uint32_t len, codeset cs, bool &zero)
217 XChar2b *buf = (XChar2b *)get_enc_buf (len * sizeof (XChar2b));
221 uint32_t c = FROM_UNICODE (cs, *text++);
234 return (XChar2b *)enc_buf;
237 /////////////////////////////////////////////////////////////////////////////
240 rxvt_font::set_name (char *name)
242 if (this->name == name)
245 if (this->name) free (this->name); // let the compiler optimize
250 rxvt_font::clear_rect (rxvt_drawable &d, int x, int y, int w, int h, int color)
252 if (color == Color_bg)
253 XClearArea (d.display->display, d, x, y, w, h, FALSE);
257 XftDrawRect (d, &r->pix_colors[color].c, x, y, w, h);
259 XSetForeground (d.display->display, TGC, r->pix_colors[color]);
260 XFillRectangle (d.display->display, d, TGC, x, y, w, h);
265 #include "table/linedraw.h"
267 struct rxvt_font_default : rxvt_font {
268 struct rxvt_fontset *fs;
270 rxvt_font_default (rxvt_fontset *fs)
276 rxvt_fontprop properties ()
280 p.width = p.height = 1;
281 p.weight = rxvt_fontprop::medium;
282 p.slant = rxvt_fontprop::roman;
287 bool load (const rxvt_fontprop &prop)
289 width = 1; height = 1;
290 ascent = 1; descent = 0;
292 set_name (strdup ("built-in support font"));
297 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful)
301 if (unicode <= 0x001f)
304 if (unicode <= 0x007f)
307 if (unicode <= 0x009f)
310 if (unicode >= 0x2500 && unicode <= 0x259f)
313 if (IS_COMPOSE (unicode))
318 case ZERO_WIDTH_CHAR:
326 void draw (rxvt_drawable &d, int x, int y,
327 const text_t *text, int len,
332 rxvt_font_default::draw (rxvt_drawable &d, int x, int y,
333 const text_t *text, int len,
336 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
338 XSetForeground (d.display->display, TGC, r->pix_colors[fg]);
345 const text_t *tp = text;
348 while (++text, --len && *text == NOCHAR)
351 int width = text - tp;
352 int fwidth = r->TermWin.fwidth * width;
354 if (0x2500 <= t && t <= 0x259f)
356 uint16_t offs = linedraw_offs[t - 0x2500];
357 uint32_t *a = linedraw_command + (offs >> 4);
358 uint32_t *b = a + (offs & 15);
361 int H = r->TermWin.fheight;
366 for (int i = 0; i <= 8; i++)
368 x_[i] = x + ((W-1) * i + (i*7/8)) / 8;
369 y_[i] = y + ((H-1) * i + (i*7/8)) / 8;
372 x_[10] = x + (W - 1) / 2; x_[9] = x_[10] - 1; x_[11] = x_[10] + 1;
373 y_[10] = y + (H - 1) / 2; y_[9] = y_[10] - 1; y_[11] = y_[10] + 1;
377 gcv.cap_style = CapButt;
379 XChangeGC (d.display->display, TGC, GCLineWidth | GCCapStyle, &gcv);
383 uint32_t command = *a++;
385 int op = (command >> 24) & 255;
386 int a = (command >> 20) & 15;
387 int b = (command >> 16) & 15;
388 int x1 = x_[(command >> 12) & 15];
389 int y1 = y_[(command >> 8) & 15];
390 int x2 = x_[(command >> 4) & 15];
391 int y2 = y_[(command >> 0) & 15];
396 XDrawLine (d.display->display, d, TGC, x1, y1, x2, y2);
399 case 1: // rectangle, possibly stippled
402 static char bm[] = { 0,0 , 3,1 , 1,2 , 1,0 };
404 gcv.fill_style = FillStippled;
405 gcv.stipple = XCreateBitmapFromData (d.display->display, d, bm + a * 2, 2, 2);
409 XChangeGC (d.display->display, TGC,
410 GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin,
414 XFillRectangle (d.display->display, d, TGC, x1, y1, x2 - x1 + 1, y2 - y1 + 1);
418 XFreePixmap (d.display->display, gcv.stipple);
420 gcv.fill_style = FillSolid;
421 XChangeGC (d.display->display, TGC, GCFillStyle, &gcv);
425 XDrawArc (d.display->display, d, TGC,
426 x1 - W/2, y1 - H/2, W-1, H-1,
427 (a - 1) * 90*64, (b - 1) * 90*64);
433 else if (IS_COMPOSE (t) && (cc = rxvt_composite[t]))
436 width = min (2, width);
440 rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)];
441 f1->draw (d, x, y, chrs, width, fg, bg);
443 if (cc->c2 != NOCHAR)
447 // prefer font of first character, for no good reasons
449 rxvt_font *f2 = (f1->has_char (cc->c2, 0, careful) && !careful)
451 : (*fs)[fs->find_font (cc->c2)];
453 f2->draw (d, x, y, chrs, width, fg, -1);
461 case ZERO_WIDTH_CHAR:
466 XDrawRectangle (d.display->display, d, TGC, x + 2, y + 2,
467 fwidth - 4, r->TermWin.fheight - 4);
474 /////////////////////////////////////////////////////////////////////////////
476 struct rxvt_font_x11 : rxvt_font {
477 rxvt_font_x11 () { f = 0; }
481 rxvt_fontprop properties ();
483 bool load (const rxvt_fontprop &prop);
485 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful);
487 void draw (rxvt_drawable &d, int x, int y,
488 const text_t *text, int len,
491 bool slow; // wether this is a proportional font or has other funny characteristics
496 char *get_property (XFontStruct *f, const char *property, const char *repl) const;
497 bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth);
498 bool set_properties (rxvt_fontprop &p, XFontStruct *f);
499 bool set_properties (rxvt_fontprop &p, const char *name);
503 rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const
507 if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value))
508 return XGetAtomName (DISPLAY, value);
510 return rxvt_strdup (repl);
514 rxvt_font_x11::properties ()
517 set_properties (p, f);
522 rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth)
524 p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2;
526 p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium;
527 p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic;
533 rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f)
535 unsigned long height;
538 if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height))
541 height = f->ascent + f->descent;
544 unsigned long avgwidth;
545 if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth))
548 char *weight = get_property (f, "WEIGHT_NAME", "medium");
549 char *slant = get_property (f, "SLANT", "r");
551 set_properties (p, height, weight, slant, avgwidth);
560 rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name)
563 const char *comp[13];
565 for (const char *c = name; *c; c++)
568 comp[slashes++] = c + 1;
573 /* can we short-circuit the costly XLoadQueryFont? */
575 && (*comp[ 6] >= '1' && *comp[ 6] <= '9')
576 && (*comp[11] >= '0' && *comp[11] <= '9'))
577 return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11]));
579 XFontStruct *f = XLoadQueryFont (DISPLAY, name);
583 // the font should really exist now. if not, we have a problem
584 // (e.g. if the user did xset fp rehash just when we were searching fonts).
585 // in that case, just return garbage.
586 bool ret = set_properties (p, f);
587 XFreeFont (DISPLAY, f);
594 // fix the size of scalable fonts
596 replace_field (char *buf, const char *name, int index, const char old, const char *replace)
599 const char *field, *end;
601 for (const char *c = name; *c; c++)
604 if (slashes == index)
607 if (slashes == index + 1)
614 if (slashes >= 13 && (!old || *field == old))
616 // TODO: check for overflow in font-name
617 strncpy (buf, name, field - name);
619 strcpy (buf, replace);
633 rxvt_font_x11::load (const rxvt_fontprop &prop)
637 char field_str[64]; // enough for 128 bits
639 // first morph the font if required
640 if (prop.weight != rxvt_fontprop::unset
641 || prop.slant != rxvt_fontprop::unset)
647 f = XLoadQueryFont (DISPLAY, name);
652 char *new_name = get_property (f, "FONT", name);
657 rxvt_warn ("font '%s' has no FONT property, continuing without.", name);
659 XFreeFont (DISPLAY, f);
663 if (prop.weight != rxvt_fontprop::unset)
665 replace_field (fname, name, 2, 0,
666 prop.weight < rxvt_fontprop::bold
667 ? "medium" : "bold");
668 set_name (strdup (fname));
671 if (prop.slant != rxvt_fontprop::unset)
673 replace_field (fname, name, 3, 0,
674 prop.slant < rxvt_fontprop::italic
675 ? "r" : "i"); // TODO: handle "o"blique, too
676 set_name (strdup (fname));
680 sprintf (field_str, "%d", prop.height == rxvt_fontprop::unset
693 font_weight () { clear (); }
694 ~font_weight () { free (name); }
699 list = XListFonts (DISPLAY, name, 4000, &count);
706 font_weight *fonts = new font_weight[count];
708 for (int i = 0; i < count; i++)
715 if (replace_field (fname, list[i], 6, '0', field_str))
716 diff += 10; // slightly penalize scalable fonts
718 if (!set_properties (p, fname))
721 if (prop.height != rxvt_fontprop::unset
722 && p.height > prop.height) // weed out too large fonts
725 if (prop.height != rxvt_fontprop::unset) diff += (prop.height - p.height) * 128;
726 if (prop.weight != rxvt_fontprop::unset) diff += abs (prop.weight - p.weight);
727 if (prop.slant != rxvt_fontprop::unset) diff += abs (prop.slant - p.slant);
728 //if (prop.width != rxvt_fontprop::unset) diff += abs (prop.width - p.width);
730 fonts[i].name = strdup (fname);
731 fonts[i].diff = diff;
734 XFreeFontNames (list);
736 // this loop only iterates when the guessed font-size is too small
739 font_weight *best = fonts + count - 1;
741 for (font_weight *w = best; w-- > fonts; )
742 if (w->diff < best->diff)
746 || !(f = XLoadQueryFont (DISPLAY, best->name)))
749 set_name (best->name);
753 descent = f->descent;
754 height = ascent + descent;
756 if (prop.height == rxvt_fontprop::unset
757 || height <= prop.height)
758 break; // font is ready for use
760 // PIXEL_SIZE small enough, but real height too large
769 char *registry = get_property (f, "CHARSET_REGISTRY", 0);
770 char *encoding = get_property (f, "CHARSET_ENCODING", 0);
772 if (registry && encoding)
775 snprintf (charset, 64, "%s-%s", registry, encoding);
777 cs = codeset_from_name (charset);
781 const char *charset = get_property (f, "FONT", 0);
788 if (*charset++ == '-' && !--count)
791 cs = codeset_from_name (charset);
797 if (cs == CS_UNICODE)
798 cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font
800 encm = f->min_byte1 != 0 || f->max_byte1 != 0;
801 enc2b = encm || f->max_char_or_byte2 > 255;
805 #if 1 // only used for slow detection, TODO optimize
806 if (f->min_bounds.width == f->max_bounds.width)
807 width = f->min_bounds.width;
808 else if (f->per_char == NULL)
809 width = f->max_bounds.width;
814 int N = f->max_char_or_byte2 - f->min_char_or_byte2;
817 N += (f->max_byte1 - f->min_byte1)
818 * (f->max_char_or_byte2 - f->min_char_or_byte2 + 1);
822 if (f->per_char[N].width > width)
823 width = f->per_char[N].width;
832 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; )
836 && FROM_UNICODE (cs, *t) == NOCHAR)
839 // ignore characters we wouldn't use anyways
841 if (!has_char (*t, &prop, careful))
844 XChar2b ch = { *t >> 8, *t };
847 int dir_ret, asc_ret, des_ret;
848 XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g);
850 int wcw = wcwidth (*t); if (wcw > 0) g.width = g.width / wcw;
852 if (width < g.width) width = g.width;
855 if (cs == CS_UNKNOWN)
857 fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name);
863 #if 0 // do it per-character
864 if (prop && width > prop->width)
875 rxvt_font_x11::clear ()
879 XFreeFont (DISPLAY, f);
885 rxvt_font_x11::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful)
887 uint32_t ch = FROM_UNICODE (cs, unicode);
892 /* check wether the character exists in _this_ font. horrible. */
897 unsigned char byte1 = ch >> 8;
898 unsigned char byte2 = ch & 255;
900 if (byte1 < f->min_byte1 || byte1 > f->max_byte1
901 || byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2)
906 int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1;
907 int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2;
909 xcs = f->per_char + N;
912 xcs = &f->max_bounds;
916 if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2)
920 xcs = f->per_char + (ch - f->min_char_or_byte2);
922 xcs = &f->max_bounds;
925 if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0
926 && xcs->ascent == 0 && xcs->descent == 0)
929 if (!prop || prop->width == rxvt_fontprop::unset)
932 // check character against base font bounding box
934 int wcw = wcwidth (unicode);
935 if (wcw > 0) w /= wcw;
937 careful = w > prop->width;
938 if (careful && w > prop->width * MAX_OVERLAP >> 2)
945 rxvt_font_x11::draw (rxvt_drawable &d, int x, int y,
946 const text_t *text, int len,
949 // this looks like a mess /.
950 // and it is a mess /.
951 // yet we are trying to be perfect /.
952 // but the result still isn't perfect /.
954 bool slow = this->slow
955 || width != r->TermWin.fwidth
956 || height != r->TermWin.fheight;
958 int base = ascent; // sorry, incorrect: r->TermWin.fbase;
961 v.foreground = r->pix_colors[fg];
966 const XChar2b *xc = enc_xchar2b (text, len, cs, slow);
968 if (bg == Color_bg && !slow)
970 v.background = r->pix_colors[bg];
971 XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v);
972 XDrawImageString16 (d.display->display, d, TGC, x, y + base, xc, len);
976 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
978 XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v);
984 if (xc->byte1 || xc->byte2)
985 XDrawString16 (d.display->display, d, TGC, x, y + base, xc, 1);
987 x += r->TermWin.fwidth;
993 XDrawString16 (d.display->display, d, TGC, x, y + base, xc, len);
998 const char *xc = enc_char (text, len, cs, slow);
1000 if (bg == Color_bg && !slow)
1002 v.background = r->pix_colors[bg];
1003 XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v);
1004 XDrawImageString (d.display->display, d, TGC, x, y + base, xc, len);
1008 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
1010 XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v);
1017 XDrawString (d.display->display, d, TGC, x, y + base, xc, 1);
1019 x += r->TermWin.fwidth;
1025 XDrawString (d.display->display, d, TGC, x, y + base, xc, len);
1030 /////////////////////////////////////////////////////////////////////////////
1034 struct rxvt_font_xft : rxvt_font {
1035 rxvt_font_xft () { f = 0; }
1039 rxvt_fontprop properties ();
1041 bool load (const rxvt_fontprop &prop);
1043 void draw (rxvt_drawable &d, int x, int y,
1044 const text_t *text, int len,
1047 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &carefull);
1054 rxvt_font_xft::clear ()
1058 XftFontClose (DISPLAY, f);
1064 rxvt_font_xft::properties ()
1068 FT_Face face = XftLockFace (f);
1072 p.weight = face->style_flags & FT_STYLE_FLAG_BOLD
1073 ? rxvt_fontprop::bold : rxvt_fontprop::medium;
1074 p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC
1075 ? rxvt_fontprop::italic : rxvt_fontprop::roman;
1083 rxvt_font_xft::load (const rxvt_fontprop &prop)
1087 FcPattern *p = FcNameParse ((FcChar8 *) name);
1094 if (prop.height != rxvt_fontprop::unset
1095 || (FcPatternGet (p, FC_PIXEL_SIZE, 0, &v) != FcResultMatch
1096 && FcPatternGet (p, FC_SIZE, 0, &v) != FcResultMatch))
1097 FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height);
1099 if (prop.weight != rxvt_fontprop::unset
1100 && FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch)
1101 FcPatternAddInteger (p, FC_WEIGHT, prop.weight);
1103 if (prop.slant != rxvt_fontprop::unset
1104 && FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch)
1105 FcPatternAddInteger (p, FC_SLANT, prop.slant);
1107 #if 0 // clipping unfortunately destroys our precious double-width-characters
1108 // clip width, we can't do better, or can we?
1109 if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch)
1110 FcPatternAddInteger (p, FC_CHAR_WIDTH, prop->width);
1113 if (FcPatternGet (p, FC_MINSPACE, 0, &v) != FcResultMatch)
1114 FcPatternAddBool (p, FC_MINSPACE, 1);
1116 // store generated name so iso14755 view gives better results
1117 set_name ((char *)FcNameUnparse (p));
1120 FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result);
1122 FcPatternDestroy (p);
1128 bool success = true;
1132 f = XftFontOpenPattern (DISPLAY, FcPatternDuplicate (match));
1140 FT_Face face = XftLockFace (f);
1142 ascent = (face->size->metrics.ascender + 63) >> 6;
1143 descent = (-face->size->metrics.descender + 63) >> 6;
1144 height = max (ascent + descent, (face->size->metrics.height + 63) >> 6);
1147 bool scalable = face->face_flags & FT_FACE_FLAG_SCALABLE;
1151 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; )
1155 if (cs != CS_UNICODE
1157 && FROM_UNICODE (cs, ch) == NOCHAR)
1160 // ignore characters we wouldn't use anyways
1162 if (!has_char (*t, &prop, careful))
1166 XftTextExtents16 (DISPLAY, f, &ch, 1, &g);
1168 int wcw = wcwidth (ch);
1169 if (wcw > 0) g.width = g.width / wcw;
1171 if (width < g.width) width = g.width;
1172 if (height < g.height) height = g.height;
1175 if (prop.height == rxvt_fontprop::unset
1176 || height <= prop.height
1183 // take smaller steps near the end
1184 if (height > prop.height + 1) ftheight++;
1185 if (height > prop.height + 2) ftheight++;
1186 if (height > prop.height + 3) ftheight++;
1188 ftheight -= height - prop.height;
1191 ftheight = prop.height - 1;
1193 XftFontClose (DISPLAY, f);
1194 FcPatternDel (match, FC_PIXEL_SIZE);
1195 FcPatternAddInteger (match, FC_PIXEL_SIZE, ftheight);
1198 FcPatternDestroy (match);
1200 #if 0 // do it per-character
1201 if (prop.width != rxvt_fontprop::unset && width > prop.width)
1212 rxvt_font_xft::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful)
1216 if (!XftCharExists (DISPLAY, f, unicode))
1219 if (!prop || prop->width == rxvt_fontprop::unset)
1222 // check character against base font bounding box
1223 FcChar32 ch = unicode;
1225 XftTextExtents32 (DISPLAY, f, &ch, 1, &g);
1228 int wcw = wcwidth (unicode);
1229 if (wcw > 0) w /= wcw;
1231 careful = w > prop->width;
1232 if (careful && w > prop->width * MAX_OVERLAP >> 2)
1239 rxvt_font_xft::draw (rxvt_drawable &d, int x, int y,
1240 const text_t *text, int len,
1243 clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg);
1245 int base = ascent; // should be fbase, but that is incorrect
1248 FcChar32 *enc = (FcChar32 *) get_enc_buf (len * sizeof (FcChar32));
1255 int cwidth = r->TermWin.fwidth;
1256 FcChar32 fc = *text++; len--;
1259 while (len && *text == NOCHAR)
1260 text++, len--, cwidth += r->TermWin.fwidth;
1262 gl = XftCharIndex (d.display->display, f, fc);
1263 XftGlyphExtents (d.display->display, f, &gl, 1, &extents);
1265 if (extents.xOff != cwidth && ep != enc)
1267 if (xoff > ewidth) xoff = ewidth;
1268 XftDrawGlyphs (d, &r->pix_colors[fg].c, f,
1269 x + (ewidth - xoff >> 1),
1270 y + base, enc, ep - enc);
1278 if (fc == ' ' && ep == enc) // skip leading spaces
1288 xoff += extents.xOff;
1294 if (xoff > ewidth) xoff = ewidth;
1295 XftDrawGlyphs (d, &r->pix_colors[fg].c, f,
1296 x + (ewidth - xoff >> 1),
1297 y + base, enc, ep - enc);
1302 /////////////////////////////////////////////////////////////////////////////
1304 rxvt_fontset::rxvt_fontset (rxvt_t r)
1305 : r (r), fontdesc (0)
1310 rxvt_fontset::~rxvt_fontset ()
1316 rxvt_fontset::clear ()
1318 prop.width = prop.height = prop.weight = prop.slant
1319 = rxvt_fontprop::unset;
1321 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++)
1324 for (pagemap **p = fmap.begin (); p != fmap.end (); p++)
1327 free (fontdesc); fontdesc = 0;
1331 fallback = fallback_fonts;
1335 rxvt_fontset::new_font (const char *name, codeset cs)
1339 if (!name || !*name)
1342 f = new rxvt_font_default (this);
1345 else if (!strncmp (name, "xft:", 4))
1348 f = new rxvt_font_xft ();
1351 else if (!strncmp (name, "x:", 2))
1354 f = new rxvt_font_x11;
1357 f = new rxvt_font_x11;
1360 f->set_name (strdup (name));
1368 /////////////////////////////////////////////////////////////////////////////
1371 rxvt_fontset::add_fonts (const char *desc)
1380 while (*desc <= ' ') desc++;
1382 codeset cs = CS_UNICODE;
1387 const char *extra = ++desc; // not yet used
1389 desc = strchr (desc, ']');
1393 rxvt_warn ("ERROR: opening '[' without closing ']' in font specification, trying to continue.\n");
1397 memcpy (spec, extra, min (desc - extra, 255));
1398 spec[min (desc - extra, 255)] = 0;
1400 if (!strncmp (extra, "codeset=", sizeof ("codeset=") - 1))
1401 cs = codeset_from_name (spec + sizeof ("codeset=") - 1);
1403 rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec);
1406 while (*desc <= ' ') desc++;
1409 end = strchr (desc, ',');
1411 end = desc + strlen (desc);
1413 if (end - desc < 511)
1415 strncpy (buf, desc, end - desc);
1416 buf[end - desc] = 0;
1418 fonts.push_back (new_font (buf, cs));
1421 rxvt_warn ("fontset element too long (>511 bytes), ignored.");
1430 rxvt_fontset::realize_font (int i)
1432 if (i < 0 || i >= fonts.size ())
1435 if (fonts[i]->loaded)
1438 fonts[i]->loaded = true;
1440 if (!fonts[i]->load (prop))
1442 fonts[i]->cs = CS_UNKNOWN;
1450 rxvt_fontset::populate (const char *desc)
1454 fontdesc = strdup (desc);
1456 fonts.push_back (new_font (0, CS_UNICODE));
1465 rxvt_fontset::find_font (const char *name) const
1467 for (rxvt_font *const *f = fonts.begin (); f < fonts.end (); f++)
1468 if ((*f)->name && !strcmp ((*f)->name, name))
1469 return f - fonts.begin ();
1475 rxvt_fontset::find_font (unicode_t unicode)
1477 if (unicode >= 1<<20)
1480 unicode_t hi = unicode >> 8;
1482 if (hi < fmap.size ()
1484 && (*fmap[hi])[unicode & 0xff] != 0xff)
1485 return (*fmap[hi])[unicode & 0xff];
1489 for (i = 0; i < fonts.size (); i++)
1491 rxvt_font *f = fonts[i];
1495 if (FROM_UNICODE (f->cs, unicode) == NOCHAR)
1498 if (!realize_font (i))
1502 if (f->cs == CS_UNKNOWN)
1506 if (f->has_char (unicode, &prop, careful))
1515 if (i == fonts.size () - 1)
1519 // search through the fallback list
1520 fonts.push_back (new_font (fallback->name, fallback->cs));
1525 // try to find a new font.
1526 // only xft currently supported, as there is no
1527 // way to configure this and xft is easier to hack in,
1528 // while x11 has more framework in place already.
1529 // TODO: this is a real resource hog, xft takes ages(?)
1530 #if XFT && USE_SLOW_LOOKUP
1531 // grab the first xft font that seems suitable
1532 FcPattern *p = FcPatternCreate ();
1534 FcCharSet *s = FcCharSetCreate ();
1535 FcCharSetAddChar (s, unicode);
1536 FcPatternAddCharSet (p, FC_CHARSET, s);
1537 // charsets don't help that much, as xft might return
1538 // a non-matching font even if a better font is available :/
1540 x x x x TODO prop might have unset contents
1541 FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height);
1542 FcPatternAddInteger (p, FC_WEIGHT, prop.weight);
1543 FcPatternAddInteger (p, FC_SLANT, prop.slant);
1544 FcPatternAddBool (p, FC_MINSPACE, 1);
1545 //FcPatternAddBool (p, FC_ANTIALIAS, 1);
1548 FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result);
1550 FcPatternDestroy (p);
1554 FcPatternDel (match, FC_CHARSET);
1555 char *font = (char *)FcNameUnparse (match);
1556 FcPatternDestroy (match);
1558 if (find_font (font) < 0)
1560 char fontname[4096];
1561 sprintf (fontname, "xft:%-.4090s", font);
1563 fonts.push_back (new_font (fontname, CS_UNICODE));
1573 /* we must return SOME font */
1577 // found a font, cache it
1580 while (hi >= fmap.size ())
1585 fmap[hi] = (pagemap *)new pagemap;
1586 memset (fmap[hi], 0xff, sizeof (pagemap));
1589 (*fmap[hi])[unicode & 0xff] = i;