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/*----------------------------------------------------------------------* |
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* File: rxvtfont.C |
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*----------------------------------------------------------------------* |
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* Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com> |
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* - original version. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*---------------------------------------------------------------------*/ |
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|
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#include "../config.h" |
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#include "rxvt.h" |
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#include "rxvtlib.h" |
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#include "rxvtutil.h" |
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#include "rxvtfont.h" |
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|
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#include <cstdlib> |
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|
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#include <inttypes.h> |
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|
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#define MAX_OVERLAP_ROMAN (8 + 2) // max. character width in 8ths of the base width |
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#define MAX_OVERLAP_ITALIC (8 + 3) // max. overlap for italic fonts |
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|
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#define OVERLAP_OK(w,wcw,prop) ((w) <= ( \ |
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(prop)->slant >= rxvt_fontprop::italic \ |
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? ((prop)->width * (wcw) * MAX_OVERLAP_ITALIC + 7) >> 3 \ |
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: ((prop)->width * (wcw) * MAX_OVERLAP_ROMAN + 7) >> 3 \ |
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)) |
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|
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const struct rxvt_fallback_font { |
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codeset cs; |
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const char *name; |
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} fallback_fonts[] = { |
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{ CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" }, |
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{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" }, |
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{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-fcd8859-15" }, |
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|
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#if ENCODING_EU |
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// cyrillic |
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{ CS_KOI8_R, "-*-*-*-r-*--*-*-*-*-c-*-koi8-r" }, |
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{ CS_KOI8_U, "-*-*-*-r-*--*-*-*-*-c-*-koi8-u" }, |
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|
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{ CS_ISO8859_2, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-2" }, |
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{ CS_ISO8859_3, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-3" }, |
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{ CS_ISO8859_4, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-4" }, |
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{ CS_ISO8859_5, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-5" }, |
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{ CS_ISO8859_6, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-6" }, |
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{ CS_ISO8859_7, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-7" }, |
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{ CS_ISO8859_8, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-8" }, |
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{ CS_ISO8859_9, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-9" }, |
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{ CS_ISO8859_10, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-10" }, |
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{ CS_ISO8859_11, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-11" }, |
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{ CS_ISO8859_13, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-13" }, |
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{ CS_ISO8859_14, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-14" }, |
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{ CS_ISO8859_16, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-16" }, |
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|
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# if XFT |
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{ CS_KOI8_U, "xft::lang=ru" }, |
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|
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{ CS_ISO8859_5, "xft::lang=ru" }, |
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{ CS_ISO8859_6, "xft::lang=ar" }, |
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{ CS_ISO8859_7, "xft::lang=el" }, |
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{ CS_ISO8859_8, "xft::lang=he" }, |
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{ CS_ISO8859_9, "xft::lang=tr" }, |
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{ CS_ISO8859_10, "xft::lang=se" }, |
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{ CS_ISO8859_11, "xft::lang=th" }, |
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# endif |
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#endif |
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|
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// japanese |
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#if ENCODING_JP || ENCODING_JP_EXT |
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# if XFT |
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// prefer xft for complex scripts |
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{ CS_JIS0208_1990_0, "xft:Kochi Gothic:antialias=false" }, |
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{ CS_JIS0208_1990_0, "xft:Sazanami Mincho:antialias=false" }, |
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{ CS_JIS0208_1990_0, "xft:Mincho:antialias=false" }, |
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{ CS_JIS0208_1990_0, "xft::lang=ja:antialias=false" }, |
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# endif |
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{ CS_JIS0201_1976_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
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{ CS_JIS0208_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
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{ CS_JIS0212_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0212*-0" }, |
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{ CS_JIS0201_1976_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
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{ CS_JIS0208_1990_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
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{ CS_JIS0212_1990_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0212*-0" }, |
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#endif |
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|
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#if ENCODING_ZH || ENCODING_ZH_EXT |
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# if XFT |
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{ CS_GBK_0, "xft:AR PL KaitiM GB" }, |
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{ CS_GBK_0, "xft:AR PL SungtiL GB" }, |
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{ CS_GBK_0, "xft::lang=zh" }, |
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{ CS_BIG5_EXT, "xft:AR PL Mingti2L Big5" }, |
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{ CS_BIG5_EXT, "xft:AR PL KaitiM Big5" }, |
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{ CS_GB2312_1980_0, "xft:AR PL KaitiM GB" }, |
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{ CS_GB2312_1980_0, "xft:AR PL SungtiL GB" }, |
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{ CS_GB2312_1980_0, "xft::lang=zh" }, |
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# endif |
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{ CS_GBK_0, "-*-*-*-*-*-*-*-*-*-*-c-*-gbk*-0" }, |
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{ CS_BIG5, "-*-*-*-*-*-*-*-*-*-*-c-*-big5-0" }, |
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{ CS_BIG5_PLUS, "-*-*-*-*-*-*-*-*-*-*-c-*-big5p-0" }, |
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{ CS_BIG5_EXT, "-*-*-*-*-*-*-*-*-*-*-c-*-big5.eten-0" }, |
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{ CS_GB2312_1980_0, "-*-*-*-*-*-*-*-*-*-*-c-*-gb2312*-0" }, |
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{ CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-gb2312*-0" }, |
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{ CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-1" }, |
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{ CS_CNS11643_1992_2, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-2" }, |
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{ CS_CNS11643_1992_3, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-3" }, |
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{ CS_CNS11643_1992_4, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-4" }, |
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{ CS_CNS11643_1992_5, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-5" }, |
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{ CS_CNS11643_1992_6, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-6" }, |
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{ CS_CNS11643_1992_7, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-7" }, |
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{ CS_CNS11643_1992_F, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-f" }, |
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#endif |
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|
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#if ENCODING_KR |
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{ CS_KSC5601_1987_0, "-baekmuk-gulim-*-*-*-*-*-*-*-*-c-*-ksc5601*" }, |
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{ CS_KSC5601_1987_0, "-*-*-*-*-*-*-*-*-*-*-c-*-ksc5601*" }, |
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# if XFT |
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{ CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" }, |
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{ CS_KSC5601_1987_0, "xft::lang=ko:antialias=false" }, |
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# endif |
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#endif |
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|
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{ CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" }, |
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//{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, // this gem of a font has actual dotted circles within the combining character glyphs. |
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#if XFT |
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{ CS_UNICODE, "xft:Bitstream Vera Sans Mono:antialias=false:autohint=true" }, |
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{ CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" }, |
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{ CS_UNICODE, "xft:Andale Mono:antialias=false:autohint=false" }, |
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{ CS_UNICODE, "xft:Arial Unicode MS:antialias=false:autohint=false" }, |
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|
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// FreeMono is usually uglier than x fonts, so try after the others |
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{ CS_UNICODE, "xft:FreeMono:autohint=true" }, |
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#endif |
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|
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// generic font fallback, put this last, as many iso10646 fonts have extents |
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// specified for all glyphs in the range they cover, but most are simply empty |
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//{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" }, |
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//{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
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{ CS_UNKNOWN, 0 } |
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}; |
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|
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// these characters are used to guess the font height and width |
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// pango uses a similar algorithm and doesn't trust the font either. |
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static uint16_t extent_test_chars[] = { |
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'0', '1', '8', 'a', 'd', 'x', 'm', 'y', 'g', 'W', 'X', '\'', '_', |
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0x00cd, 0x00d5, 0x0114, 0x0177, 0x0643, // ÍÕĔŷﻙ |
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0x304c, 0x672c, // が本 |
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}; |
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|
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#define NUM_EXTENT_TEST_CHARS (sizeof (extent_test_chars) / sizeof (extent_test_chars[0])) |
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|
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#define dTermDisplay Display *disp = term->dpy |
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#define dTermGC GC gc = term->gc |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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static const char * |
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enc_char (const text_t *text, uint32_t len, codeset cs, bool &zero) |
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{ |
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uint8_t *buf = rxvt_temp_buf<uint8_t> (len); |
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uint8_t *res = buf; |
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|
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while (len--) |
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{ |
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uint32_t c = FROM_UNICODE (cs, *text++); |
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|
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if (c == NOCHAR) |
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{ |
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c = 0; |
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zero = true; |
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} |
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|
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*buf++ = c; |
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} |
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|
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return (const char *)res; |
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} |
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|
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static const XChar2b * |
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enc_xchar2b (const text_t *text, uint32_t len, codeset cs, bool &zero) |
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{ |
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XChar2b *buf = rxvt_temp_buf<XChar2b> (len); |
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XChar2b *res = buf; |
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|
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while (len--) |
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{ |
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uint32_t c = FROM_UNICODE (cs, *text++); |
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|
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if (c == NOCHAR) |
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{ |
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c = 0; |
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zero = true; |
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} |
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|
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buf->byte1 = c >> 8; |
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buf->byte2 = c; |
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buf++; |
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} |
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|
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return res; |
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} |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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rxvt_font::rxvt_font () |
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: name(0), width(rxvt_fontprop::unset), height(rxvt_fontprop::unset) |
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{ |
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} |
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|
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void |
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rxvt_font::set_name (char *name) |
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{ |
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if (this->name == name) |
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return; |
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|
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if (this->name) free (this->name); // let the compiler optimize |
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this->name = name; |
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} |
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|
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void |
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rxvt_font::clear_rect (rxvt_drawable &d, int x, int y, int w, int h, int color) const |
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{ |
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dTermDisplay; |
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dTermGC; |
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|
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if (color == Color_bg || color == Color_transparent) |
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XClearArea (disp, d, x, y, w, h, false); |
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else if (color >= 0) |
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{ |
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#if XFT |
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XftDrawRect (d, &term->pix_colors[color].c, x, y, w, h); |
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#else |
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XSetForeground (disp, gc, term->pix_colors[color]); |
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XFillRectangle (disp, d, gc, x, y, w, h); |
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#endif |
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} |
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} |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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#include "table/linedraw.h" |
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|
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struct rxvt_font_default : rxvt_font { |
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struct rxvt_fontset *fs; |
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|
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rxvt_font_default (rxvt_fontset *fs) |
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: rxvt_font () |
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{ |
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this->fs = fs; |
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} |
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|
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rxvt_fontprop properties () |
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{ |
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rxvt_fontprop p; |
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|
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p.width = p.height = 1; |
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p.ascent = rxvt_fontprop::unset; |
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p.weight = rxvt_fontprop::medium; |
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p.slant = rxvt_fontprop::roman; |
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|
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return p; |
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} |
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|
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bool load (const rxvt_fontprop &prop, bool force_prop) |
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{ |
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width = 1; height = 1; |
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ascent = 1; descent = 0; |
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|
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set_name (strdup ("built-in support font")); |
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|
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return true; |
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} |
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|
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bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const |
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{ |
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careful = false; |
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|
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if (unicode <= 0x001f) |
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return true; |
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|
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if (unicode <= 0x007f) |
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return false; |
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|
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if (unicode <= 0x009f) |
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return true; |
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|
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if (unicode >= 0x2500 && unicode <= 0x259f && |
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!term->option (Opt_skipBuiltinGlyphs)) |
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return true; |
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|
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if (IS_COMPOSE (unicode)) |
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return true; |
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|
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switch (unicode) |
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{ |
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case ZERO_WIDTH_CHAR: |
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case NOCHAR: |
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return true; |
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} |
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|
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return false; |
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} |
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|
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void draw (rxvt_drawable &d, int x, int y, |
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const text_t *text, int len, |
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int fg, int bg); |
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}; |
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|
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void |
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rxvt_font_default::draw (rxvt_drawable &d, int x, int y, |
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const text_t *text, int len, |
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int fg, int bg) |
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{ |
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dTermDisplay; |
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dTermGC; |
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|
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clear_rect (d, x, y, term->fwidth * len, term->fheight, bg); |
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|
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XSetForeground (disp, gc, term->pix_colors[fg]); |
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|
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while (len) |
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{ |
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#if ENABLE_COMBINING |
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compose_char *cc; |
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#endif |
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const text_t *tp = text; |
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text_t t = *tp; |
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|
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while (++text, --len && *text == NOCHAR) |
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; |
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|
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int width = text - tp; |
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int fwidth = term->fwidth * width; |
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|
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if (0x2500 <= t && t <= 0x259f) |
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{ |
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uint16_t offs = linedraw_offs[t - 0x2500]; |
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uint32_t *a = linedraw_command + (offs >> 4); |
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uint32_t *b = a + (offs & 15); |
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|
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int W = fwidth; |
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int H = term->fheight; |
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|
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int x_[16]; |
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int y_[16]; |
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|
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for (int i = 0; i <= 8; i++) |
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{ |
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x_[i] = x + ((W-1) * i + (i*7/8)) / 8; |
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y_[i] = y + ((H-1) * i + (i*7/8)) / 8; |
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} |
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|
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x_[10] = x + (W - 1) / 2; x_[9] = x_[10] - 1; x_[11] = x_[10] + 1; |
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y_[10] = y + (H - 1) / 2; y_[9] = y_[10] - 1; y_[11] = y_[10] + 1; |
366 |
|
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XGCValues gcv; |
368 |
|
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gcv.cap_style = CapButt; |
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gcv.line_width = 0; |
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XChangeGC (disp, gc, GCLineWidth | GCCapStyle, &gcv); |
372 |
|
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while (a < b) |
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{ |
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uint32_t command = *a++; |
376 |
|
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int op = (command >> 24) & 255; |
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int a = (command >> 20) & 15; |
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int b = (command >> 16) & 15; |
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int x1 = x_[(command >> 12) & 15]; |
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int y1 = y_[(command >> 8) & 15]; |
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int x2 = x_[(command >> 4) & 15]; |
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int y2 = y_[(command >> 0) & 15]; |
384 |
|
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switch (op) |
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{ |
387 |
case 0: // line |
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XDrawLine (disp, d, gc, x1, y1, x2, y2); |
389 |
break; |
390 |
|
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case 1: // rectangle, possibly stippled |
392 |
if (a) |
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{ |
394 |
static char bm[] = { 0,0 , 3,1 , 1,2 , 1,0 }; |
395 |
|
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gcv.fill_style = FillStippled; |
397 |
gcv.stipple = XCreateBitmapFromData (disp, d, bm + a * 2, 2, 2); |
398 |
gcv.ts_x_origin = x; |
399 |
gcv.ts_y_origin = y; |
400 |
|
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XChangeGC (disp, gc, |
402 |
GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin, |
403 |
&gcv); |
404 |
} |
405 |
|
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XFillRectangle (disp, d, gc, x1, y1, x2 - x1 + 1, y2 - y1 + 1); |
407 |
|
408 |
if (a) |
409 |
{ |
410 |
XFreePixmap (disp, gcv.stipple); |
411 |
gcv.stipple = 0; |
412 |
gcv.fill_style = FillSolid; |
413 |
XChangeGC (disp, gc, GCFillStyle, &gcv); |
414 |
} |
415 |
break; |
416 |
case 2: // arc |
417 |
XDrawArc (disp, d, gc, |
418 |
x1 - W/2, y1 - H/2, W-1, H-1, |
419 |
(a - 1) * 90*64, (b - 1) * 90*64); |
420 |
break; |
421 |
} |
422 |
} |
423 |
} |
424 |
#if ENABLE_COMBINING |
425 |
else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) |
426 |
{ |
427 |
min_it (width, 2); // we only support wcwidth up to 2 |
428 |
|
429 |
text_t chrs[2]; |
430 |
chrs [1] = NOCHAR; |
431 |
|
432 |
*chrs = cc->c1; |
433 |
rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)]; |
434 |
f1->draw (d, x, y, chrs, width, fg, bg); |
435 |
|
436 |
if (cc->c2 != NOCHAR) |
437 |
{ |
438 |
bool careful; |
439 |
|
440 |
// prefer font of first character, for no good reasons |
441 |
*chrs = cc->c2; |
442 |
rxvt_font *f2 = (f1->has_char (cc->c2, 0, careful) && !careful) |
443 |
? f1 |
444 |
: (*fs)[fs->find_font (cc->c2)]; |
445 |
|
446 |
f2->draw (d, x, y, chrs, width, fg, Color_none); |
447 |
} |
448 |
} |
449 |
#endif |
450 |
else |
451 |
switch (t) |
452 |
{ |
453 |
case '\t': |
454 |
case ZERO_WIDTH_CHAR: |
455 |
case NOCHAR: |
456 |
break; |
457 |
|
458 |
default: |
459 |
XDrawRectangle (disp, d, gc, x + 2, y + 2, |
460 |
fwidth - 4, term->fheight - 4); |
461 |
} |
462 |
|
463 |
x += fwidth; |
464 |
} |
465 |
} |
466 |
|
467 |
///////////////////////////////////////////////////////////////////////////// |
468 |
|
469 |
struct rxvt_font_x11 : rxvt_font { |
470 |
rxvt_font_x11 () { f = 0; } |
471 |
|
472 |
void clear (); |
473 |
|
474 |
rxvt_fontprop properties (); |
475 |
|
476 |
bool load (const rxvt_fontprop &prop, bool force_prop); |
477 |
|
478 |
bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const; |
479 |
|
480 |
void draw (rxvt_drawable &d, int x, int y, |
481 |
const text_t *text, int len, |
482 |
int fg, int bg); |
483 |
|
484 |
bool slow; // wether this is a proportional font or has other funny characteristics |
485 |
XFontStruct *f; |
486 |
bool enc2b, encm; |
487 |
|
488 |
char *get_property (XFontStruct *f, Atom property, const char *repl) const; |
489 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
490 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
491 |
bool set_properties (rxvt_fontprop &p, const char *name); |
492 |
}; |
493 |
|
494 |
char * |
495 |
rxvt_font_x11::get_property (XFontStruct *f, Atom property, const char *repl) const |
496 |
{ |
497 |
unsigned long value; |
498 |
|
499 |
if (XGetFontProperty (f, property, &value)) |
500 |
return XGetAtomName (term->dpy, value); |
501 |
else |
502 |
return rxvt_strdup (repl); |
503 |
} |
504 |
|
505 |
rxvt_fontprop |
506 |
rxvt_font_x11::properties () |
507 |
{ |
508 |
rxvt_fontprop p; |
509 |
set_properties (p, f); |
510 |
return p; |
511 |
} |
512 |
|
513 |
bool |
514 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
515 |
{ |
516 |
p.width = width != rxvt_fontprop::unset ? width |
517 |
: avgwidth ? (avgwidth + 1) / 10 |
518 |
: (height + 1) / 2; |
519 |
p.height = height; |
520 |
p.ascent = rxvt_fontprop::unset; |
521 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
522 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
523 |
|
524 |
return true; |
525 |
} |
526 |
|
527 |
bool |
528 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
529 |
{ |
530 |
unsigned long height; |
531 |
|
532 |
#if 0 |
533 |
if (!XGetFontProperty (f, XInternAtom (term->dpy, "PIXEL_SIZE", 0), &height)) |
534 |
return false; |
535 |
#else |
536 |
height = f->ascent + f->descent; |
537 |
#endif |
538 |
|
539 |
unsigned long avgwidth; |
540 |
if (!XGetFontProperty (f, term->xa [XA_AVERAGE_WIDTH], &avgwidth)) |
541 |
avgwidth = 0; |
542 |
|
543 |
char *weight = get_property (f, term->xa [XA_WEIGHT_NAME], "medium"); |
544 |
char *slant = get_property (f, term->xa [XA_SLANT], "r"); |
545 |
|
546 |
set_properties (p, height, weight, slant, avgwidth); |
547 |
|
548 |
free (weight); |
549 |
free (slant); |
550 |
|
551 |
p.ascent = f->ascent; |
552 |
|
553 |
return true; |
554 |
} |
555 |
|
556 |
bool |
557 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
558 |
{ |
559 |
dTermDisplay; |
560 |
int slashes = 0; |
561 |
const char *comp[13]; |
562 |
|
563 |
for (const char *c = name; *c; c++) |
564 |
if (*c == '-') |
565 |
{ |
566 |
comp[slashes++] = c + 1; |
567 |
if (slashes >= 13) |
568 |
break; |
569 |
} |
570 |
|
571 |
/* can we short-circuit the costly XLoadQueryFont? */ |
572 |
if (slashes >= 13 |
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])); |
576 |
|
577 |
XFontStruct *f = XLoadQueryFont (disp, name); |
578 |
|
579 |
if (f) |
580 |
{ |
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 (disp, f); |
586 |
return ret; |
587 |
} |
588 |
else |
589 |
return false; |
590 |
} |
591 |
|
592 |
// fix the size of scalable fonts |
593 |
static bool |
594 |
replace_field (char *buf, const char *name, int index, const char old, const char *replace) |
595 |
{ |
596 |
int slashes = 0; |
597 |
const char *field, *end; |
598 |
|
599 |
for (const char *c = name; *c; c++) |
600 |
if (*c == '-') |
601 |
{ |
602 |
if (slashes == index) |
603 |
field = c + 1; |
604 |
|
605 |
if (slashes == index + 1) |
606 |
end = c; |
607 |
|
608 |
if (++slashes >= 13) |
609 |
break; |
610 |
} |
611 |
|
612 |
if (slashes >= 13 && (!old || *field == old)) |
613 |
{ |
614 |
// TODO: check for overflow in font-name |
615 |
strncpy (buf, name, field - name); |
616 |
buf += field - name; |
617 |
strcpy (buf, replace); |
618 |
strcat (buf, end); |
619 |
|
620 |
return true; |
621 |
} |
622 |
else |
623 |
{ |
624 |
strcpy (buf, name); |
625 |
|
626 |
return false; |
627 |
} |
628 |
} |
629 |
|
630 |
bool |
631 |
rxvt_font_x11::load (const rxvt_fontprop &prop, bool force_prop) |
632 |
{ |
633 |
dTermDisplay; |
634 |
|
635 |
clear (); |
636 |
|
637 |
char field_str[64]; // enough for 128 bits |
638 |
|
639 |
// first morph the font if required |
640 |
if (force_prop) |
641 |
{ |
642 |
char fname[1024]; |
643 |
|
644 |
if (name[0] != '-') |
645 |
{ |
646 |
f = XLoadQueryFont (disp, name); |
647 |
|
648 |
if (!f) |
649 |
return false; |
650 |
|
651 |
char *new_name = get_property (f, XA_FONT, name); |
652 |
|
653 |
if (new_name) |
654 |
set_name (new_name); |
655 |
else |
656 |
rxvt_warn ("font '%s' has no FONT property, continuing without.", name); |
657 |
|
658 |
XFreeFont (disp, f); |
659 |
f = 0; |
660 |
} |
661 |
|
662 |
if (prop.weight != rxvt_fontprop::unset) |
663 |
{ |
664 |
replace_field (fname, name, 2, 0, |
665 |
prop.weight < rxvt_fontprop::bold |
666 |
? "medium" : "bold"); |
667 |
set_name (strdup (fname)); |
668 |
} |
669 |
|
670 |
if (prop.slant != rxvt_fontprop::unset) |
671 |
{ |
672 |
replace_field (fname, name, 3, 0, |
673 |
prop.slant < rxvt_fontprop::italic |
674 |
? "r" : "i"); // TODO: handle "o"blique, too |
675 |
set_name (strdup (fname)); |
676 |
} |
677 |
} |
678 |
|
679 |
sprintf (field_str, "%d", prop.height == rxvt_fontprop::unset |
680 |
? 0 : prop.height); |
681 |
|
682 |
struct font_weight { |
683 |
char *name; |
684 |
int diff; |
685 |
|
686 |
void clear () |
687 |
{ |
688 |
name = 0; |
689 |
diff = 0x7fffffff; |
690 |
} |
691 |
|
692 |
font_weight () { clear (); } |
693 |
~font_weight () { free (name); } |
694 |
}; |
695 |
|
696 |
char **list; |
697 |
int count; |
698 |
list = XListFonts (disp, name, 4000, &count); |
699 |
|
700 |
set_name (0); |
701 |
|
702 |
if (!list) |
703 |
return false; |
704 |
|
705 |
font_weight *fonts = new font_weight[count]; |
706 |
|
707 |
for (int i = 0; i < count; i++) |
708 |
{ |
709 |
rxvt_fontprop p; |
710 |
char fname[1024]; |
711 |
|
712 |
int diff = 0; |
713 |
|
714 |
if (replace_field (fname, list[i], 6, '0', field_str)) |
715 |
diff += 10; // slightly penalize scalable fonts |
716 |
else if (replace_field (fname, list[i], 11, '0', "0")) |
717 |
diff += 300; // more heavily penalize what looks like scaled bitmap fonts |
718 |
|
719 |
if (!set_properties (p, fname)) |
720 |
continue; |
721 |
|
722 |
if (prop.height != rxvt_fontprop::unset |
723 |
&& p.height > prop.height) // weed out too large fonts |
724 |
continue; |
725 |
|
726 |
if (prop.height != rxvt_fontprop::unset) diff += (prop.height - p.height) * 128; |
727 |
if (prop.weight != rxvt_fontprop::unset) diff += abs (prop.weight - p.weight); |
728 |
if (prop.slant != rxvt_fontprop::unset) diff += abs (prop.slant - p.slant); |
729 |
//if (prop.width != rxvt_fontprop::unset) diff += abs (prop.width - p.width); |
730 |
|
731 |
fonts[i].name = strdup (fname); |
732 |
fonts[i].diff = diff; |
733 |
} |
734 |
|
735 |
XFreeFontNames (list); |
736 |
|
737 |
// this loop only iterates when the guessed font-size is too small |
738 |
for (;;) |
739 |
{ |
740 |
font_weight *best = fonts + count - 1; |
741 |
|
742 |
for (font_weight *w = best; w-- > fonts; ) |
743 |
if (w->diff <= best->diff) |
744 |
best = w; |
745 |
|
746 |
if (!best->name |
747 |
|| !(f = XLoadQueryFont (disp, best->name))) |
748 |
break; |
749 |
|
750 |
set_name (best->name); |
751 |
best->clear (); |
752 |
|
753 |
ascent = f->ascent; |
754 |
descent = f->descent; |
755 |
height = ascent + descent; |
756 |
|
757 |
if (prop.height == rxvt_fontprop::unset |
758 |
|| height <= prop.height) |
759 |
break; // font is ready for use |
760 |
|
761 |
// PIXEL_SIZE small enough, but real height too large |
762 |
clear (); |
763 |
} |
764 |
|
765 |
delete [] fonts; |
766 |
|
767 |
if (!f) |
768 |
return false; |
769 |
|
770 |
char *registry = get_property (f, term->xa [XA_CHARSET_REGISTRY], 0); |
771 |
char *encoding = get_property (f, term->xa [XA_CHARSET_ENCODING], 0); |
772 |
|
773 |
if (registry && encoding) |
774 |
{ |
775 |
char charset[64]; |
776 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
777 |
|
778 |
cs = codeset_from_name (charset); |
779 |
} |
780 |
else |
781 |
{ |
782 |
const char *charset = get_property (f, XA_FONT, 0); |
783 |
|
784 |
if (!charset) |
785 |
charset = name; |
786 |
|
787 |
int count = 13; |
788 |
while (*charset) |
789 |
if (*charset++ == '-' && !--count) |
790 |
break; |
791 |
|
792 |
cs = codeset_from_name (charset); |
793 |
} |
794 |
|
795 |
free (registry); |
796 |
free (encoding); |
797 |
|
798 |
if (cs == CS_UNICODE) |
799 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
800 |
|
801 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
802 |
enc2b = encm || f->max_char_or_byte2 > 255; |
803 |
|
804 |
slow = false; |
805 |
|
806 |
#if 1 // only used for slow detection, TODO optimize |
807 |
if (f->min_bounds.width == f->max_bounds.width || !f->per_char) |
808 |
width = f->max_bounds.width; |
809 |
else |
810 |
{ |
811 |
slow = true; |
812 |
|
813 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
814 |
|
815 |
if (encm) |
816 |
N += (f->max_byte1 - f->min_byte1) |
817 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
818 |
|
819 |
while (N) |
820 |
{ |
821 |
if (f->per_char[N].width > width) |
822 |
width = f->per_char[N].width; |
823 |
|
824 |
--N; |
825 |
} |
826 |
} |
827 |
#endif |
828 |
|
829 |
width = 1; |
830 |
|
831 |
for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) |
832 |
{ |
833 |
if (FROM_UNICODE (cs, *t) == NOCHAR) |
834 |
continue; |
835 |
|
836 |
// ignore characters we wouldn't use anyways |
837 |
bool careful; |
838 |
if (!has_char (*t, &prop, careful)) |
839 |
continue; |
840 |
|
841 |
XChar2b ch = { *t >> 8, *t }; |
842 |
|
843 |
XCharStruct g; |
844 |
int dir_ret, asc_ret, des_ret; |
845 |
XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g); |
846 |
|
847 |
int wcw = WCWIDTH (*t); |
848 |
if (wcw > 0) g.width = (g.width + wcw - 1) / wcw; |
849 |
|
850 |
if (width < g.width) width = g.width; |
851 |
} |
852 |
|
853 |
if (cs == CS_UNKNOWN) |
854 |
{ |
855 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
856 |
|
857 |
clear (); |
858 |
return false; |
859 |
} |
860 |
|
861 |
#if 0 // do it per-character |
862 |
if (prop && width > prop->width) |
863 |
{ |
864 |
clear (); |
865 |
return false; |
866 |
} |
867 |
#endif |
868 |
|
869 |
return true; |
870 |
} |
871 |
|
872 |
void |
873 |
rxvt_font_x11::clear () |
874 |
{ |
875 |
if (f) |
876 |
{ |
877 |
XFreeFont (term->dpy, f); |
878 |
f = 0; |
879 |
} |
880 |
} |
881 |
|
882 |
bool |
883 |
rxvt_font_x11::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const |
884 |
{ |
885 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
886 |
|
887 |
if (ch == NOCHAR) |
888 |
return false; |
889 |
|
890 |
/* check wether the character exists in _this_ font. horrible. */ |
891 |
XCharStruct *xcs; |
892 |
|
893 |
if (encm) |
894 |
{ |
895 |
unsigned char byte1 = ch >> 8; |
896 |
unsigned char byte2 = ch & 255; |
897 |
|
898 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
899 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
900 |
return false; |
901 |
|
902 |
if (f->per_char) |
903 |
{ |
904 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
905 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
906 |
|
907 |
xcs = f->per_char + N; |
908 |
} |
909 |
else |
910 |
xcs = &f->max_bounds; |
911 |
} |
912 |
else |
913 |
{ |
914 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
915 |
return false; |
916 |
|
917 |
if (f->per_char) |
918 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
919 |
else |
920 |
xcs = &f->max_bounds; |
921 |
} |
922 |
|
923 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
924 |
&& xcs->ascent == 0 && xcs->descent == 0) |
925 |
return false; |
926 |
|
927 |
if (!prop || prop->width == rxvt_fontprop::unset) |
928 |
return true; |
929 |
|
930 |
// check wether character overlaps previous/next character |
931 |
int w = xcs->rbearing - xcs->lbearing; |
932 |
int wcw = max (WCWIDTH (unicode), 1); |
933 |
|
934 |
careful = xcs->lbearing < 0 || xcs->rbearing > prop->width * wcw; |
935 |
|
936 |
if (careful && !OVERLAP_OK (w, wcw, prop)) |
937 |
return false; |
938 |
|
939 |
return true; |
940 |
} |
941 |
|
942 |
void |
943 |
rxvt_font_x11::draw (rxvt_drawable &d, int x, int y, |
944 |
const text_t *text, int len, |
945 |
int fg, int bg) |
946 |
{ |
947 |
// this looks like a mess /. |
948 |
// and it is a mess /. |
949 |
// yet we are trying to be perfect /. |
950 |
// but the result still isn't perfect /. |
951 |
|
952 |
dTermDisplay; |
953 |
dTermGC; |
954 |
|
955 |
bool slow = this->slow |
956 |
|| width != term->fwidth |
957 |
|| height != term->fheight; |
958 |
|
959 |
int base = ascent; // sorry, incorrect: term->fbase; |
960 |
|
961 |
XGCValues v; |
962 |
v.foreground = term->pix_colors[fg]; |
963 |
v.font = f->fid; |
964 |
|
965 |
if (enc2b) |
966 |
{ |
967 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
968 |
|
969 |
if (bg == Color_bg && !slow) |
970 |
{ |
971 |
v.background = term->pix_colors[bg]; |
972 |
XChangeGC (disp, gc, GCForeground | GCBackground | GCFont, &v); |
973 |
XDrawImageString16 (disp, d, gc, x, y + base, xc, len); |
974 |
} |
975 |
else |
976 |
{ |
977 |
clear_rect (d, x, y, term->fwidth * len, term->fheight, bg); |
978 |
|
979 |
XChangeGC (disp, gc, GCForeground | GCFont, &v); |
980 |
|
981 |
if (slow) |
982 |
{ |
983 |
do |
984 |
{ |
985 |
if (xc->byte1 || xc->byte2) |
986 |
XDrawString16 (disp, d, gc, x, y + base, xc, 1); |
987 |
|
988 |
x += term->fwidth; |
989 |
xc++; len--; |
990 |
} |
991 |
while (len); |
992 |
} |
993 |
else |
994 |
XDrawString16 (disp, d, gc, x, y + base, xc, len); |
995 |
} |
996 |
} |
997 |
else |
998 |
{ |
999 |
const char *xc = enc_char (text, len, cs, slow); |
1000 |
|
1001 |
if (bg == Color_bg && !slow) |
1002 |
{ |
1003 |
v.background = term->pix_colors[bg]; |
1004 |
XChangeGC (disp, gc, GCForeground | GCBackground | GCFont, &v); |
1005 |
XDrawImageString (disp, d, gc, x, y + base, xc, len); |
1006 |
} |
1007 |
else |
1008 |
{ |
1009 |
clear_rect (d, x, y, term->fwidth * len, term->fheight, bg); |
1010 |
|
1011 |
XChangeGC (disp, gc, GCForeground | GCFont, &v); |
1012 |
|
1013 |
if (slow) |
1014 |
{ |
1015 |
do |
1016 |
{ |
1017 |
if (*xc) |
1018 |
XDrawString (disp, d, gc, x, y + base, xc, 1); |
1019 |
|
1020 |
x += term->fwidth; |
1021 |
xc++; len--; |
1022 |
} |
1023 |
while (len); |
1024 |
} |
1025 |
else |
1026 |
XDrawString (disp, d, gc, x, y + base, xc, len); |
1027 |
} |
1028 |
} |
1029 |
} |
1030 |
|
1031 |
///////////////////////////////////////////////////////////////////////////// |
1032 |
|
1033 |
#if XFT |
1034 |
|
1035 |
struct rxvt_font_xft : rxvt_font { |
1036 |
rxvt_font_xft () { f = 0; } |
1037 |
|
1038 |
void clear (); |
1039 |
|
1040 |
rxvt_fontprop properties (); |
1041 |
|
1042 |
bool load (const rxvt_fontprop &prop, bool force_prop); |
1043 |
|
1044 |
void draw (rxvt_drawable &d, int x, int y, |
1045 |
const text_t *text, int len, |
1046 |
int fg, int bg); |
1047 |
|
1048 |
bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &carefull) const; |
1049 |
|
1050 |
protected: |
1051 |
XftFont *f; |
1052 |
}; |
1053 |
|
1054 |
void |
1055 |
rxvt_font_xft::clear () |
1056 |
{ |
1057 |
if (f) |
1058 |
{ |
1059 |
XftFontClose (term->dpy, f); |
1060 |
f = 0; |
1061 |
} |
1062 |
} |
1063 |
|
1064 |
rxvt_fontprop |
1065 |
rxvt_font_xft::properties () |
1066 |
{ |
1067 |
rxvt_fontprop p; |
1068 |
|
1069 |
FT_Face face = XftLockFace (f); |
1070 |
|
1071 |
p.width = width; |
1072 |
p.height = height; |
1073 |
p.ascent = ascent; |
1074 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD |
1075 |
? rxvt_fontprop::bold : rxvt_fontprop::medium; |
1076 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC |
1077 |
? rxvt_fontprop::italic : rxvt_fontprop::roman; |
1078 |
|
1079 |
XftUnlockFace (f); |
1080 |
|
1081 |
return p; |
1082 |
} |
1083 |
|
1084 |
bool |
1085 |
rxvt_font_xft::load (const rxvt_fontprop &prop, bool force_prop) |
1086 |
{ |
1087 |
dTermDisplay; |
1088 |
|
1089 |
clear (); |
1090 |
|
1091 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
1092 |
|
1093 |
if (!p) |
1094 |
return false; |
1095 |
|
1096 |
FcValue v; |
1097 |
|
1098 |
if (prop.height != rxvt_fontprop::unset |
1099 |
&& (FcPatternGet (p, FC_PIXEL_SIZE, 0, &v) != FcResultMatch |
1100 |
&& FcPatternGet (p, FC_SIZE, 0, &v) != FcResultMatch)) |
1101 |
FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height); |
1102 |
|
1103 |
if (prop.weight != rxvt_fontprop::unset |
1104 |
&& (force_prop || FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch)) |
1105 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
1106 |
|
1107 |
if (prop.slant != rxvt_fontprop::unset |
1108 |
&& (force_prop || FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch)) |
1109 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
1110 |
|
1111 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
1112 |
// clip width, we can't do better, or can we? |
1113 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
1114 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop->width); |
1115 |
#endif |
1116 |
|
1117 |
if (FcPatternGet (p, FC_MINSPACE, 0, &v) != FcResultMatch) |
1118 |
FcPatternAddBool (p, FC_MINSPACE, 1); |
1119 |
|
1120 |
// store generated name so iso14755 view gives better results |
1121 |
set_name ((char *)FcNameUnparse (p)); |
1122 |
|
1123 |
XftResult result; |
1124 |
FcPattern *match = XftFontMatch (disp, term->display->screen, p, &result); |
1125 |
|
1126 |
FcPatternDestroy (p); |
1127 |
|
1128 |
if (!match) |
1129 |
return false; |
1130 |
|
1131 |
int ftheight = 0; |
1132 |
bool success = true; |
1133 |
|
1134 |
for (;;) |
1135 |
{ |
1136 |
f = XftFontOpenPattern (disp, FcPatternDuplicate (match)); |
1137 |
|
1138 |
if (!f) |
1139 |
{ |
1140 |
success = false; |
1141 |
break; |
1142 |
} |
1143 |
|
1144 |
FT_Face face = XftLockFace (f); |
1145 |
|
1146 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
1147 |
descent = (-face->size->metrics.descender + 63) >> 6; |
1148 |
height = max (ascent + descent, (face->size->metrics.height + 63) >> 6); |
1149 |
width = 0; |
1150 |
|
1151 |
bool scalable = face->face_flags & FT_FACE_FLAG_SCALABLE; |
1152 |
|
1153 |
XftUnlockFace (f); |
1154 |
|
1155 |
int glheight = height; |
1156 |
|
1157 |
for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) |
1158 |
{ |
1159 |
FcChar16 ch = *t; |
1160 |
|
1161 |
if (cs != CS_UNICODE |
1162 |
&& ch > 0x100 |
1163 |
&& FROM_UNICODE (cs, ch) == NOCHAR) |
1164 |
continue; |
1165 |
|
1166 |
// ignore characters we wouldn't use anyways |
1167 |
bool careful; |
1168 |
if (!has_char (*t, &prop, careful)) |
1169 |
continue; |
1170 |
|
1171 |
XGlyphInfo g; |
1172 |
XftTextExtents16 (disp, f, &ch, 1, &g); |
1173 |
|
1174 |
g.width -= g.x; |
1175 |
|
1176 |
int wcw = WCWIDTH (ch); |
1177 |
if (wcw > 0) g.width = (g.width + wcw - 1) / wcw; |
1178 |
|
1179 |
if (width < g.width ) width = g.width; |
1180 |
if (height < g.height ) height = g.height; |
1181 |
if (glheight < g.height - g.y) glheight = g.height - g.y; |
1182 |
} |
1183 |
|
1184 |
if (!width) |
1185 |
{ |
1186 |
rxvt_warn ("unable to calculate font width for '%s', ignoring.\n", name); |
1187 |
|
1188 |
XftFontClose (disp, f); |
1189 |
f = 0; |
1190 |
|
1191 |
success = false; |
1192 |
break; |
1193 |
} |
1194 |
|
1195 |
if (prop.height == rxvt_fontprop::unset |
1196 |
|| (height <= prop.height && glheight <= prop.height) |
1197 |
|| height <= 2 |
1198 |
|| !scalable) |
1199 |
break; |
1200 |
|
1201 |
if (ftheight) |
1202 |
{ |
1203 |
// take smaller steps near the end |
1204 |
if (height > prop.height + 1) ftheight++; |
1205 |
if (height > prop.height + 2) ftheight++; |
1206 |
if (height > prop.height + 3) ftheight++; |
1207 |
|
1208 |
ftheight -= height - prop.height; |
1209 |
} |
1210 |
else |
1211 |
ftheight = prop.height - 1; |
1212 |
|
1213 |
XftFontClose (disp, f); |
1214 |
FcPatternDel (match, FC_PIXEL_SIZE); |
1215 |
FcPatternAddInteger (match, FC_PIXEL_SIZE, ftheight); |
1216 |
} |
1217 |
|
1218 |
FcPatternDestroy (match); |
1219 |
|
1220 |
#if 0 // do it per-character |
1221 |
if (prop.width != rxvt_fontprop::unset && width > prop.width) |
1222 |
{ |
1223 |
clear (); |
1224 |
success = false; |
1225 |
} |
1226 |
#endif |
1227 |
|
1228 |
return success; |
1229 |
} |
1230 |
|
1231 |
bool |
1232 |
rxvt_font_xft::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const |
1233 |
{ |
1234 |
careful = false; |
1235 |
|
1236 |
if (!XftCharExists (term->dpy, f, unicode)) |
1237 |
return false; |
1238 |
|
1239 |
if (!prop || prop->width == rxvt_fontprop::unset) |
1240 |
return true; |
1241 |
|
1242 |
// check character against base font bounding box |
1243 |
FcChar32 ch = unicode; |
1244 |
XGlyphInfo g; |
1245 |
XftTextExtents32 (term->dpy, f, &ch, 1, &g); |
1246 |
|
1247 |
int w = g.width - g.x; |
1248 |
int wcw = max (WCWIDTH (unicode), 1); |
1249 |
|
1250 |
careful = g.x > 0 || w > prop->width * wcw; |
1251 |
|
1252 |
if (careful && !OVERLAP_OK (w, wcw, prop)) |
1253 |
return false; |
1254 |
|
1255 |
// this weeds out _totally_ broken fonts, or glyphs |
1256 |
if (!OVERLAP_OK (g.xOff, wcw, prop)) |
1257 |
return false; |
1258 |
|
1259 |
return true; |
1260 |
} |
1261 |
|
1262 |
void |
1263 |
rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, |
1264 |
const text_t *text, int len, |
1265 |
int fg, int bg) |
1266 |
{ |
1267 |
XGlyphInfo extents; |
1268 |
XftGlyphSpec *enc = (XftGlyphSpec *)rxvt_temp_buf (len * sizeof (XftGlyphSpec)); |
1269 |
XftGlyphSpec *ep = enc; |
1270 |
|
1271 |
dTermDisplay; |
1272 |
dTermGC; |
1273 |
|
1274 |
int w = term->fwidth * len; |
1275 |
int h = term->fheight; |
1276 |
|
1277 |
bool buffered = bg >= 0 // we don't use a transparent bg |
1278 |
#ifndef FORCE_UNBUFFERED_XFT |
1279 |
# ifdef TRANSPARENT |
1280 |
|| !term->am_transparent // we aren't transparent |
1281 |
# endif |
1282 |
#endif |
1283 |
; |
1284 |
|
1285 |
// cut trailing spaces |
1286 |
while (len && text [len - 1] == ' ') |
1287 |
len--; |
1288 |
|
1289 |
int x_ = buffered ? 0 : x; |
1290 |
int y_ = buffered ? 0 : y; |
1291 |
|
1292 |
while (len) |
1293 |
{ |
1294 |
int cwidth = term->fwidth; |
1295 |
FcChar32 fc = *text++; len--; |
1296 |
|
1297 |
while (len && *text == NOCHAR) |
1298 |
text++, len--, cwidth += term->fwidth; |
1299 |
|
1300 |
if (fc != ' ') // skip spaces |
1301 |
{ |
1302 |
FT_UInt glyph = XftCharIndex (disp, f, fc); |
1303 |
XftGlyphExtents (disp, f, &glyph, 1, &extents); |
1304 |
|
1305 |
ep->glyph = glyph; |
1306 |
ep->x = x_ + (cwidth - extents.xOff >> 1); |
1307 |
ep->y = y_ + ascent; |
1308 |
|
1309 |
if (extents.xOff == 0) |
1310 |
ep->x = x_ + cwidth; |
1311 |
|
1312 |
ep++; |
1313 |
} |
1314 |
|
1315 |
x_ += cwidth; |
1316 |
} |
1317 |
|
1318 |
if (buffered) |
1319 |
{ |
1320 |
if (ep != enc) |
1321 |
{ |
1322 |
rxvt_drawable &d2 = d.screen->scratch_drawable (w, h); |
1323 |
|
1324 |
if (0) |
1325 |
; |
1326 |
#ifdef TRANSPARENT |
1327 |
else if (bg < 0 && term->am_pixmap_trans) |
1328 |
XCopyArea (disp, term->pixmap, d2, gc, |
1329 |
x + term->window_vt_x, y + term->window_vt_y, |
1330 |
w, h, 0, 0); |
1331 |
#endif |
1332 |
#ifdef XPM_BACKGROUND |
1333 |
else if (bg < 0 && term->bgPixmap.pixmap) |
1334 |
{ |
1335 |
XGCValues gcv; |
1336 |
|
1337 |
gcv.fill_style = FillTiled; |
1338 |
gcv.tile = term->pixmap; |
1339 |
gcv.ts_x_origin = -x; |
1340 |
gcv.ts_y_origin = -y; |
1341 |
|
1342 |
GC gc2 = XCreateGC (disp, d2, |
1343 |
GCTile | GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle, |
1344 |
&gcv); |
1345 |
|
1346 |
XFillRectangle (disp, d2, gc2, 0, 0, w, h); |
1347 |
|
1348 |
XFreeGC (disp, gc2); |
1349 |
} |
1350 |
#endif |
1351 |
else |
1352 |
XftDrawRect (d2, &term->pix_colors[bg].c, 0, 0, w, h); |
1353 |
|
1354 |
XftDrawGlyphSpec (d2, &term->pix_colors[fg].c, f, enc, ep - enc); |
1355 |
XCopyArea (disp, d2, d, gc, 0, 0, w, h, x, y); |
1356 |
} |
1357 |
else |
1358 |
clear_rect (d, x, y, w, h, bg); |
1359 |
} |
1360 |
else |
1361 |
{ |
1362 |
clear_rect (d, x, y, w, h, bg); |
1363 |
XftDrawGlyphSpec (d, &term->pix_colors[fg].c, f, enc, ep - enc); |
1364 |
} |
1365 |
} |
1366 |
|
1367 |
#endif |
1368 |
|
1369 |
///////////////////////////////////////////////////////////////////////////// |
1370 |
|
1371 |
rxvt_fontset::rxvt_fontset (rxvt_term *term) |
1372 |
: fontdesc (0), term (term) |
1373 |
{ |
1374 |
clear (); |
1375 |
} |
1376 |
|
1377 |
rxvt_fontset::~rxvt_fontset () |
1378 |
{ |
1379 |
clear (); |
1380 |
} |
1381 |
|
1382 |
void |
1383 |
rxvt_fontset::clear () |
1384 |
{ |
1385 |
prop.width = prop.height = prop.ascent = prop.weight = prop.slant |
1386 |
= rxvt_fontprop::unset; |
1387 |
force_prop = false; |
1388 |
|
1389 |
for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) |
1390 |
FONT_UNREF (*i); |
1391 |
|
1392 |
for (pagemap **p = fmap.begin (); p != fmap.end (); p++) |
1393 |
delete *p; |
1394 |
|
1395 |
free (fontdesc); fontdesc = 0; |
1396 |
|
1397 |
fonts.clear (); |
1398 |
|
1399 |
fallback = fallback_fonts; |
1400 |
} |
1401 |
|
1402 |
rxvt_font * |
1403 |
rxvt_fontset::new_font (const char *name, codeset cs) |
1404 |
{ |
1405 |
rxvt_font *f; |
1406 |
|
1407 |
if (!name || !*name) |
1408 |
{ |
1409 |
name = ""; |
1410 |
f = new rxvt_font_default (this); |
1411 |
} |
1412 |
#if XFT |
1413 |
else if (!strncmp (name, "xft:", 4)) |
1414 |
{ |
1415 |
name += 4; |
1416 |
f = new rxvt_font_xft (); |
1417 |
} |
1418 |
#endif |
1419 |
else if (!strncmp (name, "x:", 2)) |
1420 |
{ |
1421 |
name += 2; |
1422 |
f = new rxvt_font_x11; |
1423 |
} |
1424 |
else |
1425 |
f = new rxvt_font_x11; |
1426 |
|
1427 |
f->set_term (term); |
1428 |
f->set_name (strdup (name)); |
1429 |
|
1430 |
f->cs = cs; |
1431 |
f->loaded = false; |
1432 |
|
1433 |
return f; |
1434 |
} |
1435 |
|
1436 |
///////////////////////////////////////////////////////////////////////////// |
1437 |
|
1438 |
void |
1439 |
rxvt_fontset::add_fonts (const char *desc) |
1440 |
{ |
1441 |
if (desc) |
1442 |
{ |
1443 |
char buf[512]; |
1444 |
const char *end; |
1445 |
|
1446 |
do |
1447 |
{ |
1448 |
while (*desc && *desc <= ' ') |
1449 |
desc++; |
1450 |
|
1451 |
codeset cs = CS_UNICODE; |
1452 |
|
1453 |
if (*desc == '[') |
1454 |
{ |
1455 |
char spec[256]; |
1456 |
const char *extra = ++desc; // not yet used |
1457 |
|
1458 |
desc = strchr (desc, ']'); |
1459 |
|
1460 |
if (!desc) |
1461 |
{ |
1462 |
rxvt_warn ("ERROR: opening '[' without closing ']' in font specification, trying to continue.\n"); |
1463 |
break; |
1464 |
} |
1465 |
|
1466 |
memcpy (spec, extra, min (desc - extra, 255)); |
1467 |
spec[min (desc - extra, 255)] = 0; |
1468 |
|
1469 |
if (!strncmp (extra, "codeset=", sizeof ("codeset=") - 1)) |
1470 |
cs = codeset_from_name (spec + sizeof ("codeset=") - 1); |
1471 |
else |
1472 |
rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec); |
1473 |
|
1474 |
desc++; |
1475 |
while (*desc <= ' ') desc++; |
1476 |
} |
1477 |
|
1478 |
end = strchr (desc, ','); |
1479 |
if (!end) |
1480 |
end = desc + strlen (desc); |
1481 |
|
1482 |
if (end - desc < 511) |
1483 |
{ |
1484 |
strncpy (buf, desc, end - desc); |
1485 |
buf[end - desc] = 0; |
1486 |
|
1487 |
fonts.push_back (new_font (buf, cs)); |
1488 |
} |
1489 |
else |
1490 |
rxvt_warn ("fontset element too long (>511 bytes), ignored."); |
1491 |
|
1492 |
desc = end + 1; |
1493 |
} |
1494 |
while (*end); |
1495 |
} |
1496 |
} |
1497 |
|
1498 |
bool |
1499 |
rxvt_fontset::realize_font (int i) |
1500 |
{ |
1501 |
if (i < 0 || i >= fonts.size ()) |
1502 |
return false; |
1503 |
|
1504 |
if (fonts[i]->loaded) |
1505 |
return true; |
1506 |
|
1507 |
fonts[i]->loaded = true; |
1508 |
|
1509 |
if (!fonts[i]->load (prop, force_prop)) |
1510 |
{ |
1511 |
fonts[i]->cs = CS_UNKNOWN; |
1512 |
return false; |
1513 |
} |
1514 |
|
1515 |
return true; |
1516 |
} |
1517 |
|
1518 |
bool |
1519 |
rxvt_fontset::populate (const char *desc) |
1520 |
{ |
1521 |
clear (); |
1522 |
|
1523 |
fontdesc = strdup (desc); |
1524 |
|
1525 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1526 |
realize_font (0); |
1527 |
|
1528 |
add_fonts (desc); |
1529 |
|
1530 |
return true; |
1531 |
} |
1532 |
|
1533 |
int |
1534 |
rxvt_fontset::find_font (const char *name) const |
1535 |
{ |
1536 |
for (rxvt_font *const *f = fonts.begin (); f < fonts.end (); f++) |
1537 |
if ((*f)->name && !strcmp ((*f)->name, name)) |
1538 |
return f - fonts.begin (); |
1539 |
|
1540 |
return -1; |
1541 |
} |
1542 |
|
1543 |
int |
1544 |
rxvt_fontset::find_font (unicode_t unicode) |
1545 |
{ |
1546 |
if (unicode >= 1<<20) |
1547 |
return 0; |
1548 |
|
1549 |
unicode_t hi = unicode >> 8; |
1550 |
|
1551 |
if (hi < fmap.size () |
1552 |
&& fmap[hi] |
1553 |
&& (*fmap[hi])[unicode & 0xff] != 0xff) |
1554 |
return (*fmap[hi])[unicode & 0xff]; |
1555 |
|
1556 |
unsigned int i; |
1557 |
|
1558 |
for (i = 0; i < fonts.size (); i++) |
1559 |
{ |
1560 |
rxvt_font *f = fonts[i]; |
1561 |
|
1562 |
if (!f->loaded) |
1563 |
{ |
1564 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1565 |
goto next_font; |
1566 |
|
1567 |
if (!realize_font (i)) |
1568 |
goto next_font; |
1569 |
|
1570 |
if (prop.ascent != rxvt_fontprop::unset) |
1571 |
max_it (f->ascent, prop.ascent); |
1572 |
} |
1573 |
|
1574 |
if (f->cs == CS_UNKNOWN) |
1575 |
goto next_font; |
1576 |
|
1577 |
bool careful; |
1578 |
if (f->has_char (unicode, &prop, careful)) |
1579 |
{ |
1580 |
if (careful) |
1581 |
i |= 128; |
1582 |
|
1583 |
goto found; |
1584 |
} |
1585 |
|
1586 |
next_font: |
1587 |
if (i == fonts.size () - 1) |
1588 |
{ |
1589 |
if (fallback->name) |
1590 |
{ |
1591 |
// search through the fallback list |
1592 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1593 |
fallback++; |
1594 |
} |
1595 |
else |
1596 |
{ |
1597 |
// try to find a new font. |
1598 |
// only xft currently supported, as there is no |
1599 |
// way to configure this and xft is easier to hack in, |
1600 |
// while x11 has more framework in place already. |
1601 |
// TODO: this is a real resource hog, xft takes ages(?) |
1602 |
#if XFT && USE_SLOW_LOOKUP |
1603 |
// grab the first xft font that seems suitable |
1604 |
FcPattern *p = FcPatternCreate (); |
1605 |
|
1606 |
FcCharSet *s = FcCharSetCreate (); |
1607 |
FcCharSetAddChar (s, unicode); |
1608 |
FcPatternAddCharSet (p, FC_CHARSET, s); |
1609 |
// charsets don't help that much, as xft might return |
1610 |
// a non-matching font even if a better font is available :/ |
1611 |
|
1612 |
x x x x TODO prop might have unset contents |
1613 |
FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height); |
1614 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
1615 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
1616 |
FcPatternAddBool (p, FC_MINSPACE, 1); |
1617 |
//FcPatternAddBool (p, FC_ANTIALIAS, 1); |
1618 |
|
1619 |
XftResult result; |
1620 |
FcPattern *match = XftFontMatch (term->dpy, term->display->screen, p, &result); |
1621 |
|
1622 |
FcPatternDestroy (p); |
1623 |
|
1624 |
if (match) |
1625 |
{ |
1626 |
FcPatternDel (match, FC_CHARSET); |
1627 |
char *font = (char *)FcNameUnparse (match); |
1628 |
FcPatternDestroy (match); |
1629 |
|
1630 |
if (find_font (font) < 0) |
1631 |
{ |
1632 |
char fontname[4096]; |
1633 |
sprintf (fontname, "xft:%-.4090s", font); |
1634 |
|
1635 |
fonts.push_back (new_font (fontname, CS_UNICODE)); |
1636 |
} |
1637 |
|
1638 |
free (font); |
1639 |
} |
1640 |
#endif |
1641 |
} |
1642 |
} |
1643 |
} |
1644 |
|
1645 |
/* we must return SOME font */ |
1646 |
i = 0; |
1647 |
|
1648 |
found: |
1649 |
// found a font, cache it |
1650 |
if (i < 255) |
1651 |
{ |
1652 |
while (hi >= fmap.size ()) |
1653 |
fmap.push_back (0); |
1654 |
|
1655 |
if (!fmap[hi]) |
1656 |
{ |
1657 |
fmap[hi] = (pagemap *)new pagemap; |
1658 |
memset (fmap[hi], 0xff, sizeof (pagemap)); |
1659 |
} |
1660 |
|
1661 |
(*fmap[hi])[unicode & 0xff] = i; |
1662 |
} |
1663 |
|
1664 |
return i; |
1665 |
} |
1666 |
|
1667 |
|
1668 |
|