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/*--------------------------------*-C-*---------------------------------* |
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* File: defaultfont.C |
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*----------------------------------------------------------------------* |
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* Copyright (c) 2003-2004 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 "defaultfont.h" |
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|
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#include <cstdlib> |
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|
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#define DISPLAY r->display->display |
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#define TGC r->TermWin.gc |
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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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#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_UNICODE, "xft:Kochi Gothic: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_CN || ENCODING_CN_EXT |
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# if XFT |
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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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# endif |
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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_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 XFT |
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{ CS_UNICODE, "xft:Andale Mono" }, |
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{ CS_UNICODE, "xft:Arial Unicode MS" }, |
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{ CS_UNICODE, "xft:FreeMono" }, |
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#endif |
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{ CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
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|
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#if UNICODE_3 && XFT |
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{ CS_UNICODE, "xft:Code2001" }, // contains many plane-1 characters |
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#endif |
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|
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{ CS_UNKNOWN, 0 } |
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}; |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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#if XFT |
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rxvt_drawable::~rxvt_drawable () |
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{ |
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if (xftdrawable) |
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XftDrawDestroy (xftdrawable); |
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} |
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|
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rxvt_drawable::operator XftDraw *() |
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{ |
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if (!xftdrawable) |
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xftdrawable = XftDrawCreate (display->display, drawable, display->visual, display->cmap); |
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|
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return xftdrawable; |
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} |
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#endif |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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static void *enc_buf; |
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static uint32_t enc_len; |
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|
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static inline void * |
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get_enc_buf (uint32_t len) |
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{ |
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if (len > enc_len) |
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{ |
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free (enc_buf); |
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enc_buf = malloc (len); |
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enc_len = len; |
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} |
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|
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return enc_buf; |
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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 = (uint8_t *)get_enc_buf (len); |
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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 *)enc_buf; |
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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 = (XChar2b *)get_enc_buf (len * sizeof (XChar2b)); |
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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 (XChar2b *)enc_buf; |
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} |
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|
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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) |
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{ |
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if (color == Color_bg) |
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XClearArea (d.display->display, 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, &r->PixColors[color].c, x, y, w, h); |
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#else |
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XSetForeground (d.display->display, TGC, r->PixColors[color]); |
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XFillRectangle (d.display->display, d, TGC, 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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#include "table/linedraw.h" |
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|
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struct rxvt_font_default : rxvt_font { |
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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.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) |
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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 pseudofont")); |
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|
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return true; |
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} |
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|
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bool has_codepoint (unicode_t unicode) |
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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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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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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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clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
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|
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XSetForeground (d.display->display, TGC, r->PixColors[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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text_t t = *text++; |
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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 = r->TermWin.fwidth; |
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int H = r->TermWin.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; |
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|
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XGCValues gcv; |
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|
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gcv.cap_style = CapButt; |
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gcv.line_width = 0; |
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XChangeGC (d.display->display, TGC, GCLineWidth | GCCapStyle, &gcv); |
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|
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while (a < b) |
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{ |
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uint32_t command = *a++; |
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|
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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]; |
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|
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switch (op) |
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{ |
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case 0: // line |
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XDrawLine (d.display->display, d, TGC, x1, y1, x2, y2); |
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break; |
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|
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case 1: // rectangle, possibly stippled |
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if (a) |
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{ |
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static char bm[] = { 0,0 , 3,1 , 1,2 , 1,0 }; |
330 |
|
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gcv.fill_style = FillStippled; |
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gcv.stipple = XCreateBitmapFromData (d.display->display, d, bm + a * 2, 2, 2); |
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gcv.ts_x_origin = x; |
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gcv.ts_y_origin = y; |
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|
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XChangeGC (d.display->display, TGC, |
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GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin, |
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&gcv); |
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} |
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|
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XFillRectangle (d.display->display, d, TGC, x1, y1, x2 - x1 + 1, y2 - y1 + 1); |
342 |
|
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if (a) |
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{ |
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XFreePixmap (d.display->display, gcv.stipple); |
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gcv.stipple = 0; |
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gcv.fill_style = FillSolid; |
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XChangeGC (d.display->display, TGC, GCFillStyle, &gcv); |
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} |
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break; |
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case 2: // arc |
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XDrawArc (d.display->display, d, TGC, |
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x1 - W/2, y1 - H/2, W-1, H-1, |
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(a - 1) * 90*64, (b - 1) * 90*64); |
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break; |
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} |
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} |
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} |
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#if ENABLE_COMBINING |
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else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) |
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{ |
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rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)]; |
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f1->draw (d, x, y, &(t = cc->c1), 1, fg, bg); |
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if (cc->c2 != NOCHAR) |
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{ |
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// prefer font of first character, for no good reasons |
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rxvt_font *f2 = f1->has_codepoint (cc->c2) |
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? f1 |
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: (*fs)[fs->find_font (cc->c2)]; |
370 |
|
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f2->draw (d, x, y, &(t = cc->c2), 1, fg, -1); |
372 |
} |
373 |
} |
374 |
#endif |
375 |
else |
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switch (t) |
377 |
{ |
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case ZERO_WIDTH_CHAR: |
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break; |
380 |
|
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default: |
382 |
int w = 0; |
383 |
while (len > 0 && *text == NOCHAR) |
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{ |
385 |
++text; |
386 |
--len; |
387 |
w += r->TermWin.fwidth; |
388 |
} |
389 |
|
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XDrawRectangle (d.display->display, d, TGC, x + 2, y + 2, |
391 |
w + r->TermWin.fwidth - 4, r->TermWin.fheight - 4); |
392 |
x += w; |
393 |
} |
394 |
|
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x += r->TermWin.fwidth; |
396 |
} |
397 |
} |
398 |
|
399 |
///////////////////////////////////////////////////////////////////////////// |
400 |
|
401 |
struct rxvt_font_x11 : rxvt_font { |
402 |
rxvt_font_x11 () { f = 0; } |
403 |
|
404 |
void clear (); |
405 |
|
406 |
rxvt_fontprop properties (); |
407 |
|
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bool load (const rxvt_fontprop &prop); |
409 |
|
410 |
bool has_codepoint (unicode_t unicode); |
411 |
|
412 |
void draw (rxvt_drawable &d, int x, int y, |
413 |
const text_t *text, int len, |
414 |
int fg, int bg); |
415 |
|
416 |
XFontStruct *f; |
417 |
codeset cs; |
418 |
bool enc2b, encm; |
419 |
|
420 |
char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
421 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
422 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
423 |
bool set_properties (rxvt_fontprop &p, const char *name); |
424 |
}; |
425 |
|
426 |
char * |
427 |
rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
428 |
{ |
429 |
unsigned long value; |
430 |
|
431 |
if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
432 |
return XGetAtomName (DISPLAY, value); |
433 |
else |
434 |
return rxvt_strdup (repl); |
435 |
} |
436 |
|
437 |
rxvt_fontprop |
438 |
rxvt_font_x11::properties () |
439 |
{ |
440 |
rxvt_fontprop p; |
441 |
set_properties (p, f); |
442 |
return p; |
443 |
} |
444 |
|
445 |
bool |
446 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
447 |
{ |
448 |
p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
449 |
p.height = height; |
450 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
451 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
452 |
|
453 |
return true; |
454 |
} |
455 |
|
456 |
bool |
457 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
458 |
{ |
459 |
unsigned long height; |
460 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height)) |
461 |
return false; |
462 |
|
463 |
unsigned long avgwidth; |
464 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth)) |
465 |
avgwidth = 0; |
466 |
|
467 |
char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
468 |
char *slant = get_property (f, "SLANT", "r"); |
469 |
|
470 |
set_properties (p, height, weight, slant, avgwidth); |
471 |
|
472 |
free (weight); |
473 |
free (slant); |
474 |
|
475 |
return true; |
476 |
} |
477 |
|
478 |
bool |
479 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
480 |
{ |
481 |
int slashes = 0; |
482 |
const char *comp[13]; |
483 |
|
484 |
for (const char *c = name; *c; c++) |
485 |
if (*c == '-') |
486 |
{ |
487 |
comp[slashes++] = c + 1; |
488 |
if (slashes >= 13) |
489 |
break; |
490 |
} |
491 |
|
492 |
/* can we short-circuit the costly XLoadQueryFont? */ |
493 |
if (slashes >= 13 |
494 |
&& (*comp[ 6] >= '1' && *comp[ 6] <= '9') |
495 |
&& (*comp[11] >= '0' && *comp[11] <= '9')) |
496 |
return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11])); |
497 |
|
498 |
XFontStruct *f = XLoadQueryFont (DISPLAY, name); |
499 |
|
500 |
if (f) |
501 |
{ |
502 |
// the font should really exist now. if not, we have a problem |
503 |
// (e.g. if the user did xset fp rehash just when we were searching fonts). |
504 |
// in that case, just return garbage. |
505 |
bool ret = set_properties (p, f); |
506 |
XFreeFont (DISPLAY, f); |
507 |
return ret; |
508 |
} |
509 |
else |
510 |
return false; |
511 |
} |
512 |
|
513 |
// fix the size of scalable fonts |
514 |
static void |
515 |
fix_scalable (char *buf, const char *name, const rxvt_fontprop &prop) |
516 |
{ |
517 |
int slashes = 0; |
518 |
const char *size; |
519 |
|
520 |
for (const char *c = name; *c; c++) |
521 |
if (*c == '-') |
522 |
{ |
523 |
if (slashes == 6) |
524 |
size = c + 1; |
525 |
|
526 |
if (++slashes >= 13) |
527 |
break; |
528 |
} |
529 |
|
530 |
if (slashes >= 13 && size[0] == '0') |
531 |
{ |
532 |
strncpy (buf, name, size - name); |
533 |
buf += size - name; |
534 |
buf += sprintf (buf, "%d", prop.height); |
535 |
strcpy (buf, size + 1); |
536 |
} |
537 |
else |
538 |
strcpy (buf, name); |
539 |
} |
540 |
|
541 |
bool |
542 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
543 |
{ |
544 |
clear (); |
545 |
|
546 |
char **list; |
547 |
int count; |
548 |
list = XListFonts (DISPLAY, name, 512, &count); |
549 |
set_name (0); |
550 |
|
551 |
if (!list) |
552 |
return false; |
553 |
|
554 |
int bestdiff = 0x7fffffff; |
555 |
for (int i = 0; i < count; i++) |
556 |
{ |
557 |
rxvt_fontprop p; |
558 |
char fname[1024]; |
559 |
fix_scalable (fname, list[i], prop); |
560 |
|
561 |
if (!set_properties (p, fname)) |
562 |
continue; |
563 |
|
564 |
if (p.height > prop.height) // weed out too large fonts |
565 |
continue; |
566 |
|
567 |
int diff = (prop.height - p.height) * 32 |
568 |
+ abs (prop.weight - p.weight) |
569 |
+ abs (prop.slant - p.slant ); |
570 |
|
571 |
if (!name // compare against best found so far |
572 |
|| diff < bestdiff) |
573 |
{ |
574 |
set_name (strdup (fname)); |
575 |
bestdiff = diff; |
576 |
} |
577 |
} |
578 |
|
579 |
XFreeFontNames (list); |
580 |
|
581 |
if (!name) |
582 |
return false; |
583 |
|
584 |
f = XLoadQueryFont (DISPLAY, name); |
585 |
|
586 |
if (!f) |
587 |
return false; |
588 |
|
589 |
char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
590 |
char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
591 |
|
592 |
if (registry && encoding) |
593 |
{ |
594 |
char charset[64]; |
595 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
596 |
|
597 |
cs = codeset_from_name (charset); |
598 |
} |
599 |
else |
600 |
{ |
601 |
const char *charset = get_property (f, "FONT", 0); |
602 |
|
603 |
if (!charset) |
604 |
charset = name; |
605 |
|
606 |
int count = 13; |
607 |
while (*charset) |
608 |
if (*charset++ == '-' && !--count) |
609 |
break; |
610 |
|
611 |
cs = codeset_from_name (charset); |
612 |
} |
613 |
|
614 |
free (registry); |
615 |
free (encoding); |
616 |
|
617 |
if (cs == CS_UNICODE) |
618 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
619 |
|
620 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
621 |
enc2b = encm || f->max_char_or_byte2 > 255; |
622 |
|
623 |
ascent = f->ascent; |
624 |
descent = f->descent; |
625 |
height = ascent + descent; |
626 |
|
627 |
slow = false; |
628 |
|
629 |
if (f->min_bounds.width == f->max_bounds.width) |
630 |
width = f->min_bounds.width; |
631 |
else if (f->per_char == NULL) |
632 |
width = f->max_bounds.width; |
633 |
else |
634 |
{ |
635 |
slow = true; |
636 |
|
637 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
638 |
|
639 |
if (encm) |
640 |
N += (f->max_byte1 - f->min_byte1) |
641 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
642 |
|
643 |
while (N) |
644 |
{ |
645 |
if (f->per_char[N].width > width) |
646 |
width = f->per_char[N].width; |
647 |
|
648 |
--N; |
649 |
} |
650 |
} |
651 |
|
652 |
if (cs == CS_UNKNOWN) |
653 |
{ |
654 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
655 |
|
656 |
clear (); |
657 |
|
658 |
return false; |
659 |
} |
660 |
|
661 |
return true; |
662 |
} |
663 |
|
664 |
void |
665 |
rxvt_font_x11::clear () |
666 |
{ |
667 |
if (f) |
668 |
{ |
669 |
XFreeFont (DISPLAY, f); |
670 |
f = 0; |
671 |
} |
672 |
} |
673 |
|
674 |
bool |
675 |
rxvt_font_x11::has_codepoint (unicode_t unicode) |
676 |
{ |
677 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
678 |
|
679 |
if (ch == NOCHAR) |
680 |
return false; |
681 |
|
682 |
/* check wether the character exists in _this_ font. horrible. */ |
683 |
XCharStruct *xcs; |
684 |
|
685 |
if (encm) |
686 |
{ |
687 |
unsigned char byte1 = ch >> 8; |
688 |
unsigned char byte2 = ch & 255; |
689 |
|
690 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
691 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
692 |
return false; |
693 |
|
694 |
if (!f->per_char) |
695 |
return true; |
696 |
|
697 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
698 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
699 |
|
700 |
xcs = f->per_char + N; |
701 |
} |
702 |
else |
703 |
{ |
704 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
705 |
return false; |
706 |
|
707 |
if (!f->per_char) |
708 |
return true; |
709 |
|
710 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
711 |
} |
712 |
|
713 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
714 |
&& xcs->ascent == 0 && xcs->descent == 0) |
715 |
return false; |
716 |
|
717 |
return true; |
718 |
} |
719 |
|
720 |
void |
721 |
rxvt_font_x11::draw (rxvt_drawable &d, int x, int y, |
722 |
const text_t *text, int len, |
723 |
int fg, int bg) |
724 |
{ |
725 |
// this looks like a mess /. |
726 |
// and it is a mess /. |
727 |
// yet we are trying to be perfect /. |
728 |
// but the result still isn't perfect /. |
729 |
|
730 |
bool slow = this->slow |
731 |
|| width != r->TermWin.fwidth |
732 |
|| height != r->TermWin.fheight; |
733 |
|
734 |
int base = r->TermWin.fbase; |
735 |
|
736 |
XGCValues v; |
737 |
v.foreground = r->PixColors[fg]; |
738 |
v.font = f->fid; |
739 |
|
740 |
if (enc2b) |
741 |
{ |
742 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
743 |
|
744 |
if (bg == Color_bg && !slow) |
745 |
{ |
746 |
v.background = r->PixColors[bg]; |
747 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
748 |
XDrawImageString16 (d.display->display, d, TGC, x, y + base, xc, len); |
749 |
} |
750 |
else |
751 |
{ |
752 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
753 |
|
754 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
755 |
|
756 |
if (slow) |
757 |
{ |
758 |
do |
759 |
{ |
760 |
if (xc->byte1 || xc->byte2) |
761 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, 1); |
762 |
|
763 |
x += r->TermWin.fwidth; |
764 |
xc++; len--; |
765 |
} |
766 |
while (len); |
767 |
} |
768 |
else |
769 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, len); |
770 |
} |
771 |
} |
772 |
else |
773 |
{ |
774 |
const char *xc = enc_char (text, len, cs, slow); |
775 |
|
776 |
if (bg == Color_bg && !slow) |
777 |
{ |
778 |
v.background = r->PixColors[bg]; |
779 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
780 |
XDrawImageString (d.display->display, d, TGC, x, y + base, xc, len); |
781 |
} |
782 |
else |
783 |
{ |
784 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
785 |
|
786 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
787 |
|
788 |
if (slow) |
789 |
{ |
790 |
do |
791 |
{ |
792 |
if (*xc) |
793 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, 1); |
794 |
|
795 |
x += r->TermWin.fwidth; |
796 |
xc++; len--; |
797 |
} |
798 |
while (len); |
799 |
} |
800 |
else |
801 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, len); |
802 |
} |
803 |
} |
804 |
} |
805 |
|
806 |
///////////////////////////////////////////////////////////////////////////// |
807 |
|
808 |
#if XFT |
809 |
#if 0 |
810 |
#define UNIBITS 21 |
811 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
812 |
#define SWATHBITS 8 |
813 |
#endif |
814 |
|
815 |
struct rxvt_font_xft : rxvt_font { |
816 |
rxvt_font_xft () { f = 0; } |
817 |
|
818 |
void clear (); |
819 |
|
820 |
rxvt_fontprop properties (); |
821 |
|
822 |
bool load (const rxvt_fontprop &prop); |
823 |
|
824 |
void draw (rxvt_drawable &d, int x, int y, |
825 |
const text_t *text, int len, |
826 |
int fg, int bg); |
827 |
|
828 |
bool has_codepoint (unicode_t unicode); |
829 |
|
830 |
protected: |
831 |
XftFont *f; |
832 |
}; |
833 |
|
834 |
void |
835 |
rxvt_font_xft::clear () |
836 |
{ |
837 |
if (f) |
838 |
{ |
839 |
XftFontClose (DISPLAY, f); |
840 |
f = 0; |
841 |
} |
842 |
} |
843 |
|
844 |
rxvt_fontprop |
845 |
rxvt_font_xft::properties () |
846 |
{ |
847 |
rxvt_fontprop p; |
848 |
|
849 |
FT_Face face = XftLockFace (f); |
850 |
|
851 |
p.width = width; p.height = height; |
852 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
853 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC ? rxvt_fontprop::italic : rxvt_fontprop::roman; |
854 |
|
855 |
XftUnlockFace (f); |
856 |
|
857 |
return p; |
858 |
} |
859 |
|
860 |
bool |
861 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
862 |
{ |
863 |
#if 0 |
864 |
for (int i = 0; i < SWATHCOUNT; i++) |
865 |
cvr[i] = 0; |
866 |
#endif |
867 |
|
868 |
clear (); |
869 |
|
870 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
871 |
|
872 |
if (!p) |
873 |
return false; |
874 |
|
875 |
FcValue v; |
876 |
|
877 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
878 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
879 |
|
880 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
881 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
882 |
|
883 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
884 |
// clip width, we can't do better, or can we? |
885 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
886 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop.width); |
887 |
#endif |
888 |
|
889 |
//FcPatternAddBool (p, FC_MINSPACE, 1); |
890 |
|
891 |
XftResult result; |
892 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
893 |
|
894 |
FcPatternDestroy (p); |
895 |
|
896 |
if (!match) |
897 |
return false; |
898 |
|
899 |
f = XftFontOpenPattern (DISPLAY, match); |
900 |
|
901 |
if (!f) |
902 |
{ |
903 |
FcPatternDestroy (match); |
904 |
return false; |
905 |
} |
906 |
|
907 |
FT_Face face = XftLockFace (f); |
908 |
|
909 |
slow = !FT_IS_FIXED_WIDTH (face); |
910 |
|
911 |
int ftheight = 0; |
912 |
|
913 |
for (;;) |
914 |
{ |
915 |
XGlyphInfo g1, g2; |
916 |
FcChar8 c; |
917 |
|
918 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
919 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
920 |
|
921 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
922 |
slow = true; |
923 |
|
924 |
width = g2.xOff; |
925 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
926 |
descent = (-face->size->metrics.descender + 63) >> 6; |
927 |
height = ascent + descent; |
928 |
|
929 |
if (height <= prop.height || !prop.height) |
930 |
break; |
931 |
|
932 |
if (ftheight) |
933 |
{ |
934 |
// take smaller steps near the end |
935 |
if (height > prop.height + 1) ftheight++; |
936 |
if (height > prop.height + 2) ftheight++; |
937 |
if (height > prop.height + 3) ftheight++; |
938 |
|
939 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
940 |
} |
941 |
else |
942 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
943 |
} |
944 |
|
945 |
XftUnlockFace (f); |
946 |
|
947 |
return true; |
948 |
} |
949 |
|
950 |
bool |
951 |
rxvt_font_xft::has_codepoint (unicode_t unicode) |
952 |
{ |
953 |
return XftCharExists (DISPLAY, f, unicode); |
954 |
} |
955 |
|
956 |
void |
957 |
rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, |
958 |
const text_t *text, int len, |
959 |
int fg, int bg) |
960 |
{ |
961 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
962 |
|
963 |
if (!slow && width == r->TermWin.fwidth && 0) |
964 |
{ |
965 |
if (sizeof (text_t) == sizeof (FcChar16)) |
966 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
967 |
else |
968 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
969 |
} |
970 |
else |
971 |
{ |
972 |
while (len) |
973 |
{ |
974 |
if (*text != NOCHAR && *text != ' ') |
975 |
{ |
976 |
int fwidth = r->TermWin.fwidth; |
977 |
if (len >= 2 && text[1] == NOCHAR) |
978 |
fwidth *= 2; |
979 |
|
980 |
XGlyphInfo extents; |
981 |
if (sizeof (text_t) == sizeof (FcChar16)) |
982 |
{ |
983 |
XftTextExtents16 (d.display->display, f, (const FcChar16 *)text, 1, &extents); |
984 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
985 |
y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
986 |
} |
987 |
else |
988 |
{ |
989 |
XGlyphInfo extents; |
990 |
XftTextExtents32 (d.display->display, f, (const FcChar32 *)text, 1, &extents); |
991 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
992 |
y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
993 |
} |
994 |
} |
995 |
|
996 |
x += r->TermWin.fwidth; |
997 |
text++; |
998 |
len--; |
999 |
} |
1000 |
} |
1001 |
} |
1002 |
#endif |
1003 |
|
1004 |
///////////////////////////////////////////////////////////////////////////// |
1005 |
|
1006 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
1007 |
: r (r), fontdesc (0) |
1008 |
{ |
1009 |
clear (); |
1010 |
} |
1011 |
|
1012 |
rxvt_fontset::~rxvt_fontset () |
1013 |
{ |
1014 |
clear (); |
1015 |
} |
1016 |
|
1017 |
void |
1018 |
rxvt_fontset::clear () |
1019 |
{ |
1020 |
for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) |
1021 |
FONT_UNREF (*i); |
1022 |
|
1023 |
free (fontdesc); fontdesc = 0; |
1024 |
|
1025 |
fonts.clear (); |
1026 |
base_id = 0; |
1027 |
base_prop.height = 0x7fffffff; |
1028 |
base_prop.weight = rxvt_fontprop::medium; |
1029 |
base_prop.slant = rxvt_fontprop::roman; |
1030 |
|
1031 |
fallback = fallback_fonts; |
1032 |
} |
1033 |
|
1034 |
rxvt_font * |
1035 |
rxvt_fontset::new_font (const char *name, codeset cs) |
1036 |
{ |
1037 |
rxvt_font *f; |
1038 |
|
1039 |
if (!name || !*name) |
1040 |
{ |
1041 |
name = ""; |
1042 |
f = new rxvt_font_default; |
1043 |
} |
1044 |
#if XFT |
1045 |
else if (!strncmp (name, "xft:", 4)) |
1046 |
{ |
1047 |
name += 4; |
1048 |
f = new rxvt_font_xft; |
1049 |
} |
1050 |
#endif |
1051 |
else if (!strncmp (name, "x:", 2)) |
1052 |
{ |
1053 |
name += 2; |
1054 |
f = new rxvt_font_x11; |
1055 |
} |
1056 |
else |
1057 |
f = new rxvt_font_x11; |
1058 |
|
1059 |
f->fs = this; |
1060 |
f->set_term (r); |
1061 |
f->set_name (strdup (name)); |
1062 |
|
1063 |
f->cs = cs; |
1064 |
f->loaded = false; |
1065 |
|
1066 |
return f; |
1067 |
} |
1068 |
|
1069 |
///////////////////////////////////////////////////////////////////////////// |
1070 |
|
1071 |
void |
1072 |
rxvt_fontset::add_fonts (const char *desc) |
1073 |
{ |
1074 |
if (desc) |
1075 |
{ |
1076 |
char buf[512]; |
1077 |
const char *end; |
1078 |
|
1079 |
do |
1080 |
{ |
1081 |
while (*desc <= ' ') desc++; |
1082 |
|
1083 |
if (*desc == '[') |
1084 |
{ |
1085 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
1086 |
|
1087 |
//const char *extra = desc++; // not yet used |
1088 |
|
1089 |
desc = strchr (desc, ']'); |
1090 |
|
1091 |
if (!desc) |
1092 |
{ |
1093 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
1094 |
break; |
1095 |
} |
1096 |
|
1097 |
desc++; |
1098 |
while (*desc <= ' ') desc++; |
1099 |
} |
1100 |
|
1101 |
end = strchr (desc, ','); |
1102 |
if (!end) |
1103 |
end = desc + strlen (desc); |
1104 |
|
1105 |
if (end - desc < 511) |
1106 |
{ |
1107 |
strncpy (buf, desc, end - desc); |
1108 |
buf[end - desc] = 0; |
1109 |
|
1110 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
1111 |
} |
1112 |
|
1113 |
desc = end + 1; |
1114 |
} |
1115 |
while (*end); |
1116 |
} |
1117 |
} |
1118 |
|
1119 |
bool |
1120 |
rxvt_fontset::realize_font (int i) |
1121 |
{ |
1122 |
if (fonts[i]->loaded) |
1123 |
return true; |
1124 |
|
1125 |
fonts[i]->loaded = true; |
1126 |
|
1127 |
if (!fonts[i]->load (base_prop)) |
1128 |
{ |
1129 |
fonts[i]->cs = CS_UNKNOWN; |
1130 |
return false; |
1131 |
} |
1132 |
|
1133 |
return true; |
1134 |
} |
1135 |
|
1136 |
bool |
1137 |
rxvt_fontset::populate (const char *desc) |
1138 |
{ |
1139 |
clear (); |
1140 |
|
1141 |
fontdesc = strdup (desc); |
1142 |
|
1143 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1144 |
realize_font (0); |
1145 |
|
1146 |
add_fonts (desc); |
1147 |
|
1148 |
if (!base_id) |
1149 |
base_id = 1; |
1150 |
|
1151 |
// we currently need a base-font, no matter what |
1152 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1153 |
{ |
1154 |
puts ("unable to load specified font (s), falling back to 'fixed'\n"); |
1155 |
add_fonts ("fixed"); |
1156 |
base_id = fonts.size () - 1; |
1157 |
} |
1158 |
|
1159 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1160 |
return false; |
1161 |
|
1162 |
base_prop = fonts[base_id]->properties (); |
1163 |
|
1164 |
return true; |
1165 |
} |
1166 |
|
1167 |
int |
1168 |
rxvt_fontset::find_font (unicode_t unicode, bool bold) |
1169 |
{ |
1170 |
for (unsigned int i = !!(0x20 <= unicode && unicode <= 0x7f); // skip pseudo-font for ascii |
1171 |
i < fonts.size (); |
1172 |
i++) |
1173 |
{ |
1174 |
rxvt_font *f = fonts[i]; |
1175 |
|
1176 |
if (!f->loaded) |
1177 |
{ |
1178 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1179 |
goto next_font; |
1180 |
|
1181 |
if (!realize_font (i)) |
1182 |
goto next_font; |
1183 |
} |
1184 |
|
1185 |
if (f->cs == CS_UNKNOWN) |
1186 |
goto next_font; |
1187 |
|
1188 |
if (bold && f->properties ().weight < rxvt_fontprop::bold) |
1189 |
goto next_font; |
1190 |
|
1191 |
if (f->has_codepoint (unicode)) |
1192 |
return i; |
1193 |
|
1194 |
next_font: |
1195 |
if (i == fonts.size () - 1 && fallback->name) |
1196 |
{ |
1197 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1198 |
fallback++; |
1199 |
i = 0; |
1200 |
} |
1201 |
} |
1202 |
|
1203 |
// if no bold font found, use a regular one |
1204 |
if (bold) |
1205 |
return find_font (unicode); |
1206 |
|
1207 |
return 0; /* we must return SOME font */ |
1208 |
} |
1209 |
|
1210 |
|
1211 |
|