… | |
… | |
24 | #include "rxvtlib.h" |
24 | #include "rxvtlib.h" |
25 | #include "rxvtutil.h" |
25 | #include "rxvtutil.h" |
26 | #include "rxvtfont.h" |
26 | #include "rxvtfont.h" |
27 | |
27 | |
28 | #include <cstdlib> |
28 | #include <cstdlib> |
29 | #include <wchar.h> |
29 | |
30 | #include <inttypes.h> |
30 | #include <inttypes.h> |
31 | |
31 | |
32 | #define MAX_OVERLAP_ROMAN (8 + 2) // max. character width in 8ths of the base width |
32 | #define MAX_OVERLAP_ROMAN (8 + 2) // max. character width in 8ths of the base width |
33 | #define MAX_OVERLAP_ITALIC (8 + 3) // max. overlap for italic fonts |
33 | #define MAX_OVERLAP_ITALIC (8 + 3) // max. overlap for italic fonts |
34 | |
34 | |
35 | #define OVERLAP_OK(w,prop) (w) > ( \ |
35 | #define OVERLAP_OK(w,wcw,prop) ((w) <= ( \ |
36 | prop->slant >= rxvt_fontprop::italic \ |
36 | (prop)->slant >= rxvt_fontprop::italic \ |
37 | ? (prop->width * MAX_OVERLAP_ITALIC + 7) >> 3 \ |
37 | ? ((prop)->width * (wcw) * MAX_OVERLAP_ITALIC + 7) >> 3 \ |
38 | : (prop->width * MAX_OVERLAP_ROMAN + 7) >> 3 \ |
38 | : ((prop)->width * (wcw) * MAX_OVERLAP_ROMAN + 7) >> 3 \ |
39 | ) |
39 | )) |
40 | |
40 | |
41 | const struct rxvt_fallback_font { |
41 | const struct rxvt_fallback_font { |
42 | codeset cs; |
42 | codeset cs; |
43 | const char *name; |
43 | const char *name; |
44 | } fallback_fonts[] = { |
44 | } fallback_fonts[] = { |
… | |
… | |
64 | { CS_ISO8859_13, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-13" }, |
64 | { CS_ISO8859_13, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-13" }, |
65 | { CS_ISO8859_14, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-14" }, |
65 | { CS_ISO8859_14, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-14" }, |
66 | { CS_ISO8859_16, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-16" }, |
66 | { CS_ISO8859_16, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-16" }, |
67 | |
67 | |
68 | # if XFT |
68 | # if XFT |
69 | { CS_KOI8_U, "xft::spacing=100:lang=ru:antialias=false" }, |
69 | { CS_KOI8_U, "xft::lang=ru" }, |
70 | |
70 | |
71 | { CS_ISO8859_5, "xft::spacing=100:lang=ru:antialias=false" }, |
71 | { CS_ISO8859_5, "xft::lang=ru" }, |
72 | { CS_ISO8859_6, "xft::spacing=100:lang=ar:antialias=false" }, |
72 | { CS_ISO8859_6, "xft::lang=ar" }, |
73 | { CS_ISO8859_7, "xft::spacing=100:lang=el:antialias=false" }, |
73 | { CS_ISO8859_7, "xft::lang=el" }, |
74 | { CS_ISO8859_8, "xft::spacing=100:lang=he:antialias=false" }, |
74 | { CS_ISO8859_8, "xft::lang=he" }, |
75 | { CS_ISO8859_9, "xft::spacing=100:lang=tr:antialias=false" }, |
75 | { CS_ISO8859_9, "xft::lang=tr" }, |
76 | { CS_ISO8859_10, "xft::spacing=100:lang=se:antialias=false" }, |
76 | { CS_ISO8859_10, "xft::lang=se" }, |
77 | { CS_ISO8859_11, "xft::spacing=100:lang=th:antialias=false" }, |
77 | { CS_ISO8859_11, "xft::lang=th" }, |
78 | # endif |
78 | # endif |
79 | #endif |
79 | #endif |
80 | |
80 | |
81 | // japanese |
81 | // japanese |
82 | #if ENCODING_JP || ENCODING_JP_EXT |
82 | #if ENCODING_JP || ENCODING_JP_EXT |
83 | # if XFT |
83 | # if XFT |
84 | // prefer xft for complex scripts |
84 | // prefer xft for complex scripts |
85 | { CS_JIS0208_1990_0, "xft:Kochi Gothic:antialias=false" }, |
85 | { CS_JIS0208_1990_0, "xft:Kochi Gothic:antialias=false" }, |
86 | { CS_JIS0208_1990_0, "xft:Sazanami Mincho:antialias=false" }, |
86 | { CS_JIS0208_1990_0, "xft:Sazanami Mincho:antialias=false" }, |
87 | { CS_JIS0208_1990_0, "xft:Mincho:antialias=false" }, |
87 | { CS_JIS0208_1990_0, "xft:Mincho:antialias=false" }, |
88 | { CS_JIS0208_1990_0, "xft::lang=ja:spacing=100:antialias=false" }, |
88 | { CS_JIS0208_1990_0, "xft::lang=ja:antialias=false" }, |
89 | # endif |
89 | # endif |
90 | { CS_JIS0201_1976_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
90 | { CS_JIS0201_1976_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
91 | { CS_JIS0208_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
91 | { CS_JIS0208_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
92 | { CS_JIS0212_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0212*-0" }, |
92 | { CS_JIS0212_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0212*-0" }, |
93 | { CS_JIS0201_1976_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
93 | { CS_JIS0201_1976_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
… | |
… | |
97 | |
97 | |
98 | #if ENCODING_ZH || ENCODING_ZH_EXT |
98 | #if ENCODING_ZH || ENCODING_ZH_EXT |
99 | # if XFT |
99 | # if XFT |
100 | { CS_GBK_0, "xft:AR PL KaitiM GB" }, |
100 | { CS_GBK_0, "xft:AR PL KaitiM GB" }, |
101 | { CS_GBK_0, "xft:AR PL SungtiL GB" }, |
101 | { CS_GBK_0, "xft:AR PL SungtiL GB" }, |
102 | { CS_GBK_0, "xft::spacing=100:lang=zh" }, |
102 | { CS_GBK_0, "xft::lang=zh" }, |
103 | { CS_BIG5_EXT, "xft:AR PL Mingti2L Big5" }, |
103 | { CS_BIG5_EXT, "xft:AR PL Mingti2L Big5" }, |
104 | { CS_BIG5_EXT, "xft:AR PL KaitiM Big5" }, |
104 | { CS_BIG5_EXT, "xft:AR PL KaitiM Big5" }, |
105 | { CS_GB2312_1980_0, "xft:AR PL KaitiM GB" }, |
105 | { CS_GB2312_1980_0, "xft:AR PL KaitiM GB" }, |
106 | { CS_GB2312_1980_0, "xft:AR PL SungtiL GB" }, |
106 | { CS_GB2312_1980_0, "xft:AR PL SungtiL GB" }, |
107 | { CS_GB2312_1980_0, "xft::spacing=100:lang=zh" }, |
107 | { CS_GB2312_1980_0, "xft::lang=zh" }, |
108 | # endif |
108 | # endif |
109 | { CS_GBK_0, "-*-*-*-*-*-*-*-*-*-*-c-*-gbk*-0" }, |
109 | { CS_GBK_0, "-*-*-*-*-*-*-*-*-*-*-c-*-gbk*-0" }, |
110 | { CS_BIG5, "-*-*-*-*-*-*-*-*-*-*-c-*-big5-0" }, |
110 | { CS_BIG5, "-*-*-*-*-*-*-*-*-*-*-c-*-big5-0" }, |
111 | { CS_BIG5_PLUS, "-*-*-*-*-*-*-*-*-*-*-c-*-big5p-0" }, |
111 | { CS_BIG5_PLUS, "-*-*-*-*-*-*-*-*-*-*-c-*-big5p-0" }, |
112 | { CS_BIG5_EXT, "-*-*-*-*-*-*-*-*-*-*-c-*-big5.eten-0" }, |
112 | { CS_BIG5_EXT, "-*-*-*-*-*-*-*-*-*-*-c-*-big5.eten-0" }, |
… | |
… | |
125 | #if ENCODING_KR |
125 | #if ENCODING_KR |
126 | { CS_KSC5601_1987_0, "-baekmuk-gulim-*-*-*-*-*-*-*-*-c-*-ksc5601*" }, |
126 | { CS_KSC5601_1987_0, "-baekmuk-gulim-*-*-*-*-*-*-*-*-c-*-ksc5601*" }, |
127 | { CS_KSC5601_1987_0, "-*-*-*-*-*-*-*-*-*-*-c-*-ksc5601*" }, |
127 | { CS_KSC5601_1987_0, "-*-*-*-*-*-*-*-*-*-*-c-*-ksc5601*" }, |
128 | # if XFT |
128 | # if XFT |
129 | { CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" }, |
129 | { CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" }, |
130 | { CS_KSC5601_1987_0, "xft::spacing=100:lang=ko:antialias=false" }, |
130 | { CS_KSC5601_1987_0, "xft::lang=ko:antialias=false" }, |
131 | # endif |
131 | # endif |
132 | #endif |
132 | #endif |
133 | |
133 | |
134 | // generic font fallback |
|
|
135 | { CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" }, |
134 | { CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" }, |
136 | { CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, |
135 | //{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, // this gem of a font has actual dotted circles within the combining character glyphs. |
137 | { CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" }, |
|
|
138 | { CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
|
|
139 | #if XFT |
136 | #if XFT |
140 | { CS_UNICODE, "xft:Bitstream Vera Sans Mono:antialias=false:autohint=true" }, |
137 | { CS_UNICODE, "xft:Bitstream Vera Sans Mono:antialias=false:autohint=true" }, |
141 | { CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" }, |
138 | { CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" }, |
142 | { CS_UNICODE, "xft:Andale Mono:antialias=false:autohint=false" }, |
139 | { CS_UNICODE, "xft:Andale Mono:antialias=false:autohint=false" }, |
143 | { CS_UNICODE, "xft:Arial Unicode MS:antialias=false:autohint=false" }, |
140 | { CS_UNICODE, "xft:Arial Unicode MS:antialias=false:autohint=false" }, |
144 | |
141 | |
145 | // FreeMono is usually uglier than x fonts, so try last only. |
142 | // FreeMono is usually uglier than x fonts, so try after the others |
146 | { CS_UNICODE, "xft:FreeMono:autohint=true" }, |
143 | { CS_UNICODE, "xft:FreeMono:autohint=true" }, |
147 | #endif |
144 | #endif |
148 | |
145 | |
|
|
146 | // generic font fallback, put this last, as many iso10646 fonts have extents |
|
|
147 | // specified for all glyphs in the range they cover, but most are simply empty |
|
|
148 | //{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" }, |
|
|
149 | //{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
149 | { CS_UNKNOWN, 0 } |
150 | { CS_UNKNOWN, 0 } |
150 | }; |
151 | }; |
151 | |
152 | |
152 | // these characters are used to guess the font height and width |
153 | // these characters are used to guess the font height and width |
153 | // pango uses a similar algorithm and doesn't trust the font either. |
154 | // pango uses a similar algorithm and doesn't trust the font either. |
… | |
… | |
228 | return res; |
229 | return res; |
229 | } |
230 | } |
230 | |
231 | |
231 | ///////////////////////////////////////////////////////////////////////////// |
232 | ///////////////////////////////////////////////////////////////////////////// |
232 | |
233 | |
|
|
234 | rxvt_font::rxvt_font () |
|
|
235 | : name(0), width(rxvt_fontprop::unset), height(rxvt_fontprop::unset) |
|
|
236 | { |
|
|
237 | } |
|
|
238 | |
233 | void |
239 | void |
234 | rxvt_font::set_name (char *name) |
240 | rxvt_font::set_name (char *name) |
235 | { |
241 | { |
236 | if (this->name == name) |
242 | if (this->name == name) |
237 | return; |
243 | return; |
… | |
… | |
256 | XSetForeground (disp, gc, term->pix_colors[color]); |
262 | XSetForeground (disp, gc, term->pix_colors[color]); |
257 | XFillRectangle (disp, d, gc, x, y, w, h); |
263 | XFillRectangle (disp, d, gc, x, y, w, h); |
258 | #endif |
264 | #endif |
259 | } |
265 | } |
260 | } |
266 | } |
|
|
267 | |
|
|
268 | ///////////////////////////////////////////////////////////////////////////// |
261 | |
269 | |
262 | #include "table/linedraw.h" |
270 | #include "table/linedraw.h" |
263 | |
271 | |
264 | struct rxvt_font_default : rxvt_font { |
272 | struct rxvt_font_default : rxvt_font { |
265 | struct rxvt_fontset *fs; |
273 | struct rxvt_fontset *fs; |
… | |
… | |
432 | } |
440 | } |
433 | } |
441 | } |
434 | #if ENABLE_COMBINING |
442 | #if ENABLE_COMBINING |
435 | else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) |
443 | else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) |
436 | { |
444 | { |
|
|
445 | min_it (width, 2); // we only support wcwidth up to 2 |
|
|
446 | |
437 | text_t chrs[2]; |
447 | text_t chrs[2]; |
438 | width = min (2, width); |
|
|
439 | chrs [1] = NOCHAR; |
448 | chrs [1] = NOCHAR; |
440 | |
449 | |
441 | *chrs = cc->c1; |
450 | *chrs = cc->c1; |
442 | rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)]; |
451 | rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)]; |
443 | f1->draw (d, x, y, chrs, width, fg, bg); |
452 | f1->draw (d, x, y, chrs, width, fg, bg); |
… | |
… | |
521 | } |
530 | } |
522 | |
531 | |
523 | bool |
532 | bool |
524 | rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
533 | rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
525 | { |
534 | { |
526 | p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
535 | p.width = width != rxvt_fontprop::unset ? width |
|
|
536 | : avgwidth ? (avgwidth + 1) / 10 |
|
|
537 | : (height + 1) / 2; |
527 | p.height = height; |
538 | p.height = height; |
528 | p.ascent = rxvt_fontprop::unset; |
539 | p.ascent = rxvt_fontprop::unset; |
529 | p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
540 | 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; |
541 | p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
531 | |
542 | |
… | |
… | |
811 | enc2b = encm || f->max_char_or_byte2 > 255; |
822 | enc2b = encm || f->max_char_or_byte2 > 255; |
812 | |
823 | |
813 | slow = false; |
824 | slow = false; |
814 | |
825 | |
815 | #if 1 // only used for slow detection, TODO optimize |
826 | #if 1 // only used for slow detection, TODO optimize |
816 | if (f->min_bounds.width == f->max_bounds.width) |
827 | if (f->min_bounds.width == f->max_bounds.width || !f->per_char) |
817 | width = f->min_bounds.width; |
|
|
818 | else if (f->per_char == NULL) |
|
|
819 | width = f->max_bounds.width; |
828 | width = f->max_bounds.width; |
820 | else |
829 | else |
821 | { |
830 | { |
822 | slow = true; |
831 | slow = true; |
823 | |
832 | |
… | |
… | |
839 | |
848 | |
840 | width = 1; |
849 | width = 1; |
841 | |
850 | |
842 | for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) |
851 | for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) |
843 | { |
852 | { |
844 | if (cs != CS_UNICODE |
|
|
845 | && *t > 0x100 |
|
|
846 | && FROM_UNICODE (cs, *t) == NOCHAR) |
853 | if (FROM_UNICODE (cs, *t) == NOCHAR) |
847 | continue; |
854 | continue; |
848 | |
855 | |
849 | // ignore characters we wouldn't use anyways |
856 | // ignore characters we wouldn't use anyways |
850 | bool careful; |
857 | bool careful; |
851 | if (!has_char (*t, &prop, careful)) |
858 | if (!has_char (*t, &prop, careful)) |
… | |
… | |
855 | |
862 | |
856 | XCharStruct g; |
863 | XCharStruct g; |
857 | int dir_ret, asc_ret, des_ret; |
864 | int dir_ret, asc_ret, des_ret; |
858 | XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g); |
865 | XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g); |
859 | |
866 | |
|
|
867 | int wcw = WCWIDTH (*t); |
860 | int wcw = WCWIDTH (*t); if (wcw > 0) g.width = (g.width + wcw - 1) / wcw; |
868 | if (wcw > 0) g.width = (g.width + wcw - 1) / wcw; |
861 | |
869 | |
862 | if (width < g.width) width = g.width; |
870 | if (width < g.width) width = g.width; |
863 | } |
871 | } |
864 | |
872 | |
865 | if (cs == CS_UNKNOWN) |
873 | if (cs == CS_UNKNOWN) |
866 | { |
874 | { |
867 | fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
875 | fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
… | |
… | |
937 | return false; |
945 | return false; |
938 | |
946 | |
939 | if (!prop || prop->width == rxvt_fontprop::unset) |
947 | if (!prop || prop->width == rxvt_fontprop::unset) |
940 | return true; |
948 | return true; |
941 | |
949 | |
942 | // check character against base font bounding box |
950 | // check wether character overlaps previous/next character |
943 | int w = xcs->rbearing - xcs->lbearing; |
951 | int w = xcs->rbearing - xcs->lbearing; |
944 | int wcw = WCWIDTH (unicode); |
952 | int wcw = max (WCWIDTH (unicode), 1); |
945 | if (wcw > 0) w = (w + wcw - 1) / wcw; |
|
|
946 | |
953 | |
947 | careful = w > prop->width; |
954 | careful = xcs->lbearing < 0 || xcs->rbearing > prop->width * wcw; |
|
|
955 | |
948 | if (careful && OVERLAP_OK (w, prop)) |
956 | if (careful && !OVERLAP_OK (w, wcw, prop)) |
949 | return false; |
957 | return false; |
950 | |
958 | |
951 | return true; |
959 | return true; |
952 | } |
960 | } |
953 | |
961 | |
… | |
… | |
1255 | FcChar32 ch = unicode; |
1263 | FcChar32 ch = unicode; |
1256 | XGlyphInfo g; |
1264 | XGlyphInfo g; |
1257 | XftTextExtents32 (term->xdisp, f, &ch, 1, &g); |
1265 | XftTextExtents32 (term->xdisp, f, &ch, 1, &g); |
1258 | |
1266 | |
1259 | int w = g.width - g.x; |
1267 | int w = g.width - g.x; |
1260 | int wcw = WCWIDTH (unicode); |
1268 | int wcw = max (WCWIDTH (unicode), 1); |
1261 | if (wcw > 0) w = (w + wcw - 1) / wcw; |
|
|
1262 | |
1269 | |
1263 | careful = w > prop->width; |
1270 | careful = g.x > 0 || w > prop->width * wcw; |
|
|
1271 | |
1264 | if (careful && OVERLAP_OK (w, prop)) |
1272 | if (careful && !OVERLAP_OK (w, wcw, prop)) |
|
|
1273 | return false; |
|
|
1274 | |
|
|
1275 | // this weeds out _totally_ broken fonts, or glyphs |
|
|
1276 | if (!OVERLAP_OK (g.xOff, wcw, prop)) |
1265 | return false; |
1277 | return false; |
1266 | |
1278 | |
1267 | return true; |
1279 | return true; |
1268 | } |
1280 | } |
1269 | |
1281 | |
… | |
… | |
1296 | if (fc != ' ') // skip spaces |
1308 | if (fc != ' ') // skip spaces |
1297 | { |
1309 | { |
1298 | FT_UInt glyph = XftCharIndex (disp, f, fc); |
1310 | FT_UInt glyph = XftCharIndex (disp, f, fc); |
1299 | XftGlyphExtents (disp, f, &glyph, 1, &extents); |
1311 | XftGlyphExtents (disp, f, &glyph, 1, &extents); |
1300 | |
1312 | |
|
|
1313 | |
1301 | ep->glyph = glyph; |
1314 | ep->glyph = glyph; |
1302 | ep->x = x + (cwidth - extents.xOff >> 1); |
1315 | ep->x = x + (cwidth - extents.xOff >> 1); |
1303 | ep->y = y + ascent; |
1316 | ep->y = y + ascent; |
|
|
1317 | |
|
|
1318 | if (extents.xOff == 0) |
|
|
1319 | ep->x = x + cwidth; |
|
|
1320 | |
1304 | ep++; |
1321 | ep++; |
1305 | } |
1322 | } |
1306 | |
1323 | |
1307 | x += cwidth; |
1324 | x += cwidth; |
1308 | } |
1325 | } |