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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, "-*-*-*-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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} |
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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 }; |
326 |
|
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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); |
338 |
|
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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; |
352 |
} |
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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)]; |
366 |
|
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f2->draw (d, x, y, &(t = cc->c2), 1, fg, -1); |
368 |
} |
369 |
} |
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#endif |
371 |
else |
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switch (t) |
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{ |
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case ZERO_WIDTH_CHAR: |
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break; |
376 |
|
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default: |
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int w = 0; |
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while (len > 0 && *text == NOCHAR) |
380 |
{ |
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++text; |
382 |
--len; |
383 |
w += r->TermWin.fwidth; |
384 |
} |
385 |
|
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XDrawRectangle (d.display->display, d, TGC, x + 2, y + 2, |
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w + r->TermWin.fwidth - 4, r->TermWin.fheight - 4); |
388 |
x += w; |
389 |
} |
390 |
|
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x += r->TermWin.fwidth; |
392 |
} |
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} |
394 |
|
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///////////////////////////////////////////////////////////////////////////// |
396 |
|
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struct rxvt_font_x11 : rxvt_font { |
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rxvt_font_x11 () { f = 0; } |
399 |
|
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void clear (); |
401 |
|
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rxvt_fontprop properties (); |
403 |
|
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bool load (const rxvt_fontprop &prop); |
405 |
|
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bool has_codepoint (unicode_t unicode); |
407 |
|
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void draw (rxvt_drawable &d, int x, int y, |
409 |
const text_t *text, int len, |
410 |
int fg, int bg); |
411 |
|
412 |
XFontStruct *f; |
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codeset cs; |
414 |
bool enc2b, encm; |
415 |
|
416 |
char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
417 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
418 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
419 |
bool set_properties (rxvt_fontprop &p, const char *name); |
420 |
}; |
421 |
|
422 |
char * |
423 |
rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
424 |
{ |
425 |
unsigned long value; |
426 |
|
427 |
if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
428 |
return XGetAtomName (DISPLAY, value); |
429 |
else |
430 |
return rxvt_strdup (repl); |
431 |
} |
432 |
|
433 |
rxvt_fontprop |
434 |
rxvt_font_x11::properties () |
435 |
{ |
436 |
rxvt_fontprop p; |
437 |
set_properties (p, f); |
438 |
return p; |
439 |
} |
440 |
|
441 |
bool |
442 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
443 |
{ |
444 |
p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
445 |
p.height = height; |
446 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
447 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
448 |
|
449 |
return true; |
450 |
} |
451 |
|
452 |
bool |
453 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
454 |
{ |
455 |
unsigned long height; |
456 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height)) |
457 |
return false; |
458 |
|
459 |
unsigned long avgwidth; |
460 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth)) |
461 |
avgwidth = 0; |
462 |
|
463 |
char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
464 |
char *slant = get_property (f, "SLANT", "r"); |
465 |
|
466 |
set_properties (p, height, weight, slant, avgwidth); |
467 |
|
468 |
free (weight); |
469 |
free (slant); |
470 |
|
471 |
return true; |
472 |
} |
473 |
|
474 |
bool |
475 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
476 |
{ |
477 |
int slashes = 0; |
478 |
const char *comp[13]; |
479 |
|
480 |
for (const char *c = name; *c; c++) |
481 |
if (*c == '-') |
482 |
{ |
483 |
comp[slashes++] = c + 1; |
484 |
if (slashes >= 13) |
485 |
break; |
486 |
} |
487 |
|
488 |
/* can we short-circuit the costly XLoadQueryFont? */ |
489 |
if (slashes >= 13 |
490 |
&& (*comp[ 6] >= '1' && *comp[ 6] <= '9') |
491 |
&& (*comp[11] >= '0' && *comp[11] <= '9')) |
492 |
return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11])); |
493 |
|
494 |
XFontStruct *f = XLoadQueryFont (DISPLAY, name); |
495 |
|
496 |
if (f) |
497 |
{ |
498 |
// the font should really exist now. if not, we have a problem |
499 |
// (e.g. if the user did xset fp rehash just when we were searching fonts). |
500 |
// in that case, just return garbage. |
501 |
bool ret = set_properties (p, f); |
502 |
XFreeFont (DISPLAY, f); |
503 |
return ret; |
504 |
} |
505 |
else |
506 |
return false; |
507 |
} |
508 |
|
509 |
// fix the size of scalable fonts |
510 |
static void |
511 |
fix_scalable (char *buf, const char *name, const rxvt_fontprop &prop) |
512 |
{ |
513 |
int slashes = 0; |
514 |
const char *size; |
515 |
|
516 |
for (const char *c = name; *c; c++) |
517 |
if (*c == '-') |
518 |
{ |
519 |
if (slashes == 6) |
520 |
size = c + 1; |
521 |
|
522 |
if (++slashes >= 13) |
523 |
break; |
524 |
} |
525 |
|
526 |
if (slashes >= 13 && size[0] == '0') |
527 |
{ |
528 |
strncpy (buf, name, size - name); |
529 |
buf += size - name; |
530 |
buf += sprintf (buf, "%d", prop.height); |
531 |
strcpy (buf, size + 1); |
532 |
} |
533 |
else |
534 |
strcpy (buf, name); |
535 |
} |
536 |
|
537 |
bool |
538 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
539 |
{ |
540 |
clear (); |
541 |
|
542 |
char **list; |
543 |
int count; |
544 |
list = XListFonts (DISPLAY, name, 512, &count); |
545 |
set_name (0); |
546 |
|
547 |
if (!list) |
548 |
return false; |
549 |
|
550 |
int bestdiff = 0x7fffffff; |
551 |
for (int i = 0; i < count; i++) |
552 |
{ |
553 |
rxvt_fontprop p; |
554 |
char fname[1024]; |
555 |
fix_scalable (fname, list[i], prop); |
556 |
|
557 |
if (!set_properties (p, fname)) |
558 |
continue; |
559 |
|
560 |
if (p.height > prop.height) // weed out too large fonts |
561 |
continue; |
562 |
|
563 |
int diff = (prop.height - p.height) * 32 |
564 |
+ abs (prop.weight - p.weight) |
565 |
+ abs (prop.slant - p.slant ); |
566 |
|
567 |
if (!name // compare against best found so far |
568 |
|| diff < bestdiff) |
569 |
{ |
570 |
set_name (strdup (fname)); |
571 |
bestdiff = diff; |
572 |
} |
573 |
} |
574 |
|
575 |
XFreeFontNames (list); |
576 |
|
577 |
if (!name) |
578 |
return false; |
579 |
|
580 |
f = XLoadQueryFont (DISPLAY, name); |
581 |
|
582 |
if (!f) |
583 |
return false; |
584 |
|
585 |
char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
586 |
char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
587 |
|
588 |
if (registry && encoding) |
589 |
{ |
590 |
char charset[64]; |
591 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
592 |
|
593 |
cs = codeset_from_name (charset); |
594 |
} |
595 |
else |
596 |
{ |
597 |
const char *charset = get_property (f, "FONT", 0); |
598 |
|
599 |
if (!charset) |
600 |
charset = name; |
601 |
|
602 |
int count = 13; |
603 |
while (*charset) |
604 |
if (*charset++ == '-' && !--count) |
605 |
break; |
606 |
|
607 |
cs = codeset_from_name (charset); |
608 |
} |
609 |
|
610 |
free (registry); |
611 |
free (encoding); |
612 |
|
613 |
if (cs == CS_UNICODE) |
614 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
615 |
|
616 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
617 |
enc2b = encm || f->max_char_or_byte2 > 255; |
618 |
|
619 |
ascent = f->ascent; |
620 |
descent = f->descent; |
621 |
height = ascent + descent; |
622 |
|
623 |
slow = false; |
624 |
|
625 |
if (f->min_bounds.width == f->max_bounds.width) |
626 |
width = f->min_bounds.width; |
627 |
else if (f->per_char == NULL) |
628 |
width = f->max_bounds.width; |
629 |
else |
630 |
{ |
631 |
slow = true; |
632 |
|
633 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
634 |
|
635 |
if (encm) |
636 |
N += (f->max_byte1 - f->min_byte1) |
637 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
638 |
|
639 |
while (N) |
640 |
{ |
641 |
if (f->per_char[N].width > width) |
642 |
width = f->per_char[N].width; |
643 |
|
644 |
--N; |
645 |
} |
646 |
} |
647 |
|
648 |
if (cs == CS_UNKNOWN) |
649 |
{ |
650 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
651 |
|
652 |
clear (); |
653 |
|
654 |
return false; |
655 |
} |
656 |
|
657 |
return true; |
658 |
} |
659 |
|
660 |
void |
661 |
rxvt_font_x11::clear () |
662 |
{ |
663 |
if (f) |
664 |
{ |
665 |
XFreeFont (DISPLAY, f); |
666 |
f = 0; |
667 |
} |
668 |
} |
669 |
|
670 |
bool |
671 |
rxvt_font_x11::has_codepoint (unicode_t unicode) |
672 |
{ |
673 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
674 |
|
675 |
if (ch == NOCHAR) |
676 |
return false; |
677 |
|
678 |
/* check wether the character exists in _this_ font. horrible. */ |
679 |
XCharStruct *xcs; |
680 |
|
681 |
if (encm) |
682 |
{ |
683 |
unsigned char byte1 = ch >> 8; |
684 |
unsigned char byte2 = ch & 255; |
685 |
|
686 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
687 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
688 |
return false; |
689 |
|
690 |
if (!f->per_char) |
691 |
return true; |
692 |
|
693 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
694 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
695 |
|
696 |
xcs = f->per_char + N; |
697 |
} |
698 |
else |
699 |
{ |
700 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
701 |
return false; |
702 |
|
703 |
if (!f->per_char) |
704 |
return true; |
705 |
|
706 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
707 |
} |
708 |
|
709 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
710 |
&& xcs->ascent == 0 && xcs->descent == 0) |
711 |
return false; |
712 |
|
713 |
return true; |
714 |
} |
715 |
|
716 |
void |
717 |
rxvt_font_x11::draw (rxvt_drawable &d, int x, int y, |
718 |
const text_t *text, int len, |
719 |
int fg, int bg) |
720 |
{ |
721 |
// this looks like a mess /. |
722 |
// and it is a mess /. |
723 |
// yet we are trying to be perfect /. |
724 |
// but the result still isn't perfect /. |
725 |
|
726 |
bool slow = this->slow |
727 |
|| width != r->TermWin.fwidth |
728 |
|| height != r->TermWin.fheight; |
729 |
|
730 |
int base = r->TermWin.fbase; |
731 |
|
732 |
XGCValues v; |
733 |
v.foreground = r->PixColors[fg]; |
734 |
v.font = f->fid; |
735 |
|
736 |
if (enc2b) |
737 |
{ |
738 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
739 |
|
740 |
if (bg == Color_bg && !slow) |
741 |
{ |
742 |
v.background = r->PixColors[bg]; |
743 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
744 |
XDrawImageString16 (d.display->display, d, TGC, x, y + base, xc, len); |
745 |
} |
746 |
else |
747 |
{ |
748 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
749 |
|
750 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
751 |
|
752 |
if (slow) |
753 |
{ |
754 |
do |
755 |
{ |
756 |
if (xc->byte1 || xc->byte2) |
757 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, 1); |
758 |
|
759 |
x += r->TermWin.fwidth; |
760 |
xc++; len--; |
761 |
} |
762 |
while (len); |
763 |
} |
764 |
else |
765 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, len); |
766 |
} |
767 |
} |
768 |
else |
769 |
{ |
770 |
const char *xc = enc_char (text, len, cs, slow); |
771 |
|
772 |
if (bg == Color_bg && !slow) |
773 |
{ |
774 |
v.background = r->PixColors[bg]; |
775 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
776 |
XDrawImageString (d.display->display, d, TGC, x, y + base, xc, len); |
777 |
} |
778 |
else |
779 |
{ |
780 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
781 |
|
782 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
783 |
|
784 |
if (slow) |
785 |
{ |
786 |
do |
787 |
{ |
788 |
if (*xc) |
789 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, 1); |
790 |
|
791 |
x += r->TermWin.fwidth; |
792 |
xc++; len--; |
793 |
} |
794 |
while (len); |
795 |
} |
796 |
else |
797 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, len); |
798 |
} |
799 |
} |
800 |
} |
801 |
|
802 |
///////////////////////////////////////////////////////////////////////////// |
803 |
|
804 |
#if XFT |
805 |
#if 0 |
806 |
#define UNIBITS 21 |
807 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
808 |
#define SWATHBITS 8 |
809 |
#endif |
810 |
|
811 |
struct rxvt_font_xft : rxvt_font { |
812 |
rxvt_font_xft () { f = 0; } |
813 |
|
814 |
void clear (); |
815 |
|
816 |
rxvt_fontprop properties (); |
817 |
|
818 |
bool load (const rxvt_fontprop &prop); |
819 |
|
820 |
void draw (rxvt_drawable &d, int x, int y, |
821 |
const text_t *text, int len, |
822 |
int fg, int bg); |
823 |
|
824 |
bool has_codepoint (unicode_t unicode); |
825 |
|
826 |
protected: |
827 |
XftFont *f; |
828 |
}; |
829 |
|
830 |
void |
831 |
rxvt_font_xft::clear () |
832 |
{ |
833 |
if (f) |
834 |
{ |
835 |
XftFontClose (DISPLAY, f); |
836 |
f = 0; |
837 |
} |
838 |
} |
839 |
|
840 |
rxvt_fontprop |
841 |
rxvt_font_xft::properties () |
842 |
{ |
843 |
rxvt_fontprop p; |
844 |
|
845 |
FT_Face face = XftLockFace (f); |
846 |
|
847 |
p.width = width; p.height = height; |
848 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
849 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC ? rxvt_fontprop::italic : rxvt_fontprop::roman; |
850 |
|
851 |
XftUnlockFace (f); |
852 |
|
853 |
return p; |
854 |
} |
855 |
|
856 |
bool |
857 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
858 |
{ |
859 |
#if 0 |
860 |
for (int i = 0; i < SWATHCOUNT; i++) |
861 |
cvr[i] = 0; |
862 |
#endif |
863 |
|
864 |
clear (); |
865 |
|
866 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
867 |
|
868 |
if (!p) |
869 |
return false; |
870 |
|
871 |
FcValue v; |
872 |
|
873 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
874 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
875 |
|
876 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
877 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
878 |
|
879 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
880 |
// clip width, we can't do better, or can we? |
881 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
882 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop.width); |
883 |
#endif |
884 |
|
885 |
//FcPatternAddBool (p, FC_MINSPACE, 1); |
886 |
|
887 |
XftResult result; |
888 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
889 |
|
890 |
FcPatternDestroy (p); |
891 |
|
892 |
if (!match) |
893 |
return false; |
894 |
|
895 |
f = XftFontOpenPattern (DISPLAY, match); |
896 |
|
897 |
if (!f) |
898 |
{ |
899 |
FcPatternDestroy (match); |
900 |
return false; |
901 |
} |
902 |
|
903 |
FT_Face face = XftLockFace (f); |
904 |
|
905 |
slow = !FT_IS_FIXED_WIDTH (face); |
906 |
|
907 |
int ftheight = 0; |
908 |
|
909 |
for (;;) |
910 |
{ |
911 |
XGlyphInfo g1, g2; |
912 |
FcChar8 c; |
913 |
|
914 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
915 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
916 |
|
917 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
918 |
slow = true; |
919 |
|
920 |
width = g2.xOff; |
921 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
922 |
descent = (-face->size->metrics.descender + 63) >> 6; |
923 |
height = ascent + descent; |
924 |
|
925 |
if (height <= prop.height || !prop.height) |
926 |
break; |
927 |
|
928 |
if (ftheight) |
929 |
{ |
930 |
// take smaller steps near the end |
931 |
if (height > prop.height + 1) ftheight++; |
932 |
if (height > prop.height + 2) ftheight++; |
933 |
if (height > prop.height + 3) ftheight++; |
934 |
|
935 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
936 |
} |
937 |
else |
938 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
939 |
} |
940 |
|
941 |
XftUnlockFace (f); |
942 |
|
943 |
return true; |
944 |
} |
945 |
|
946 |
bool |
947 |
rxvt_font_xft::has_codepoint (unicode_t unicode) |
948 |
{ |
949 |
return XftCharExists (DISPLAY, f, unicode); |
950 |
} |
951 |
|
952 |
void |
953 |
rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, |
954 |
const text_t *text, int len, |
955 |
int fg, int bg) |
956 |
{ |
957 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
958 |
|
959 |
if (!slow && width == r->TermWin.fwidth && 0) |
960 |
{ |
961 |
if (sizeof (text_t) == sizeof (FcChar16)) |
962 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
963 |
else |
964 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
965 |
} |
966 |
else |
967 |
{ |
968 |
while (len) |
969 |
{ |
970 |
if (*text != NOCHAR && *text != ' ') |
971 |
{ |
972 |
int fwidth = r->TermWin.fwidth; |
973 |
if (len >= 2 && text[1] == NOCHAR) |
974 |
fwidth *= 2; |
975 |
|
976 |
XGlyphInfo extents; |
977 |
if (sizeof (text_t) == sizeof (FcChar16)) |
978 |
{ |
979 |
XftTextExtents16 (d.display->display, f, (const FcChar16 *)text, 1, &extents); |
980 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
981 |
y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
982 |
} |
983 |
else |
984 |
{ |
985 |
XGlyphInfo extents; |
986 |
XftTextExtents32 (d.display->display, f, (const FcChar32 *)text, 1, &extents); |
987 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
988 |
y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
989 |
} |
990 |
} |
991 |
|
992 |
x += r->TermWin.fwidth; |
993 |
text++; |
994 |
len--; |
995 |
} |
996 |
} |
997 |
} |
998 |
#endif |
999 |
|
1000 |
///////////////////////////////////////////////////////////////////////////// |
1001 |
|
1002 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
1003 |
: r (r), fontdesc (0) |
1004 |
{ |
1005 |
clear (); |
1006 |
} |
1007 |
|
1008 |
rxvt_fontset::~rxvt_fontset () |
1009 |
{ |
1010 |
clear (); |
1011 |
} |
1012 |
|
1013 |
void |
1014 |
rxvt_fontset::clear () |
1015 |
{ |
1016 |
for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) |
1017 |
FONT_UNREF (*i); |
1018 |
|
1019 |
free (fontdesc); fontdesc = 0; |
1020 |
|
1021 |
fonts.clear (); |
1022 |
base_id = 0; |
1023 |
base_prop.height = 0x7fffffff; |
1024 |
base_prop.weight = rxvt_fontprop::medium; |
1025 |
base_prop.slant = rxvt_fontprop::roman; |
1026 |
|
1027 |
fallback = fallback_fonts; |
1028 |
} |
1029 |
|
1030 |
rxvt_font * |
1031 |
rxvt_fontset::new_font (const char *name, codeset cs) |
1032 |
{ |
1033 |
rxvt_font *f; |
1034 |
|
1035 |
if (!name || !*name) |
1036 |
{ |
1037 |
name = ""; |
1038 |
f = new rxvt_font_default; |
1039 |
} |
1040 |
#if XFT |
1041 |
else if (!strncmp (name, "xft:", 4)) |
1042 |
{ |
1043 |
name += 4; |
1044 |
f = new rxvt_font_xft; |
1045 |
} |
1046 |
#endif |
1047 |
else if (!strncmp (name, "x:", 2)) |
1048 |
{ |
1049 |
name += 2; |
1050 |
f = new rxvt_font_x11; |
1051 |
} |
1052 |
else |
1053 |
f = new rxvt_font_x11; |
1054 |
|
1055 |
f->fs = this; |
1056 |
f->set_term (r); |
1057 |
f->set_name (strdup (name)); |
1058 |
|
1059 |
f->cs = cs; |
1060 |
f->loaded = false; |
1061 |
|
1062 |
return f; |
1063 |
} |
1064 |
|
1065 |
///////////////////////////////////////////////////////////////////////////// |
1066 |
|
1067 |
void |
1068 |
rxvt_fontset::add_fonts (const char *desc) |
1069 |
{ |
1070 |
if (desc) |
1071 |
{ |
1072 |
char buf[512]; |
1073 |
const char *end; |
1074 |
|
1075 |
do |
1076 |
{ |
1077 |
while (*desc <= ' ') desc++; |
1078 |
|
1079 |
if (*desc == '[') |
1080 |
{ |
1081 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
1082 |
|
1083 |
//const char *extra = desc++; // not yet used |
1084 |
|
1085 |
desc = strchr (desc, ']'); |
1086 |
|
1087 |
if (!desc) |
1088 |
{ |
1089 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
1090 |
break; |
1091 |
} |
1092 |
|
1093 |
desc++; |
1094 |
while (*desc <= ' ') desc++; |
1095 |
} |
1096 |
|
1097 |
end = strchr (desc, ','); |
1098 |
if (!end) |
1099 |
end = desc + strlen (desc); |
1100 |
|
1101 |
if (end - desc < 511) |
1102 |
{ |
1103 |
strncpy (buf, desc, end - desc); |
1104 |
buf[end - desc] = 0; |
1105 |
|
1106 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
1107 |
} |
1108 |
|
1109 |
desc = end + 1; |
1110 |
} |
1111 |
while (*end); |
1112 |
} |
1113 |
} |
1114 |
|
1115 |
bool |
1116 |
rxvt_fontset::realize_font (int i) |
1117 |
{ |
1118 |
if (fonts[i]->loaded) |
1119 |
return true; |
1120 |
|
1121 |
fonts[i]->loaded = true; |
1122 |
|
1123 |
if (!fonts[i]->load (base_prop)) |
1124 |
{ |
1125 |
fonts[i]->cs = CS_UNKNOWN; |
1126 |
return false; |
1127 |
} |
1128 |
|
1129 |
return true; |
1130 |
} |
1131 |
|
1132 |
bool |
1133 |
rxvt_fontset::populate (const char *desc) |
1134 |
{ |
1135 |
clear (); |
1136 |
|
1137 |
fontdesc = strdup (desc); |
1138 |
|
1139 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1140 |
realize_font (0); |
1141 |
|
1142 |
add_fonts (desc); |
1143 |
|
1144 |
if (!base_id) |
1145 |
base_id = 1; |
1146 |
|
1147 |
// we currently need a base-font, no matter what |
1148 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1149 |
{ |
1150 |
puts ("unable to load specified font (s), falling back to 'fixed'\n"); |
1151 |
add_fonts ("fixed"); |
1152 |
base_id = fonts.size () - 1; |
1153 |
} |
1154 |
|
1155 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1156 |
return false; |
1157 |
|
1158 |
base_prop = fonts[base_id]->properties (); |
1159 |
|
1160 |
return true; |
1161 |
} |
1162 |
|
1163 |
int |
1164 |
rxvt_fontset::find_font (unicode_t unicode) |
1165 |
{ |
1166 |
for (unsigned int i = !!(0x20 <= unicode && unicode <= 0x7f); // skip pseudo-font for ascii |
1167 |
i < fonts.size (); |
1168 |
i++) |
1169 |
{ |
1170 |
rxvt_font *f = fonts[i]; |
1171 |
|
1172 |
if (!f->loaded) |
1173 |
{ |
1174 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1175 |
goto next_font; |
1176 |
|
1177 |
if (!realize_font (i)) |
1178 |
goto next_font; |
1179 |
} |
1180 |
|
1181 |
if (f->cs != CS_UNKNOWN && f->has_codepoint (unicode)) |
1182 |
return i; |
1183 |
|
1184 |
next_font: |
1185 |
if (i == fonts.size () - 1 && fallback->name) |
1186 |
{ |
1187 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1188 |
fallback++; |
1189 |
i = 0; |
1190 |
} |
1191 |
} |
1192 |
|
1193 |
return 0; /* we must return SOME font */ |
1194 |
} |
1195 |
|
1196 |
|
1197 |
|