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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 GC 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_1983_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
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{ CS_JIS0212_1990_0, "-*-mincho-*-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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#endif |
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{ CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" }, |
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{ CS_UNICODE, "xft:FreeMono" }, |
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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, GC, r->PixColors[color]); |
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XFillRectangle (d.display->display, d, GC, x, y, w, h); |
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#endif |
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} |
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} |
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|
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static const char *linedraw_cmds[128] = { |
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"1hH", "2hH", "1vV", "2vV", |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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"1HV", "2H1V", "1H2V", "2HV", |
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|
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// 2510 |
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"1hV", "2h1V", "1h2V", "2hV", |
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"1Hv", "2H1v", "1H2v", "2Hv", |
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"1hv", "2h1v", "1h2v", "2hv", |
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"1HvV", "2H1vV", "1HV2v", "1Hv2V", |
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|
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// 2520 |
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"1H2vV", "2Hv1V", "2HV1v", "2HvV", |
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"1hvV", "2h1vV", "1hV2v", "1hv2V", |
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"1h2vV", "2hv1V", "1v2hV", "2hvV", |
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"1hHV", "2h1HV", "2H1hV", "2hH1V", |
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|
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// 2530 |
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"1hH2V", "2hV1H", "1h2HV", "2hHV", |
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"1hHv", "1vH2h", "1hv2H", "1v2hH", |
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"1hH2v", "1H2hv", "1h2Hv", "2hHv", |
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"1hHvV", "1vVH2h", "1hvV2H", "1vV2hH", |
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|
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// 2540 |
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"1hHV2v", "1hHv2V", "1hH2vV", "1HV2hv", |
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"1hV2Hv", "1Hv2hV", "1hv2HV", "1V2hHv", |
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"1v2hHV", "1H2hvV", "1h2HvV", "2hHvV", |
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0, 0, 0, 0, |
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|
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// 2550 |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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|
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// 2560 |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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|
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// 2570 |
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0, "1a", "1b", "1ab", |
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"1h", "1v", "1H", "1V", |
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"2h", "2v", "2H", "2V", |
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"1h2H", "1v2V", "1H2h", "1V2v" |
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|
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// to be done |
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}; |
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|
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struct rxvt_font_default : rxvt_font { |
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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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return true; |
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} |
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|
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bool has_codepoint (uint32_t unicode) |
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{ |
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if (unicode <= 0x001f) |
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return true; |
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if (unicode >= 0x0080 && unicode <= 0x009f) |
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return true; |
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|
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if (unicode >= 0x2500 && unicode <= 0x257f |
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&& linedraw_cmds[unicode - 0x2500]) |
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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, GC, r->PixColors[fg]); |
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|
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while (len--) |
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{ |
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text_t t = *text++; |
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|
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// is it in our linedrawing table? |
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if (t >= 0x2500 & t <= 0x2580 && linedraw_cmds[t - 0x2500]) |
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{ |
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const char *p = linedraw_cmds[t - 0x2500]; |
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|
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int x0 = x, x1 = x + (r->TermWin.fwidth - 1) / 2, x2 = x + r->TermWin.fwidth - 1; |
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int y0 = y, y1 = y + (r->TermWin.fheight - 1) / 2, y2 = y + r->TermWin.fheight - 1; |
321 |
|
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XGCValues gcv; |
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|
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while (*p) |
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{ |
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switch (*p++) |
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{ |
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case '1': |
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gcv.line_width = 0; |
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XChangeGC (d.display->display, GC, GCLineWidth, &gcv); |
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break; |
332 |
|
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case '2': |
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gcv.line_width = 2; |
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XChangeGC (d.display->display, GC, GCLineWidth, &gcv); |
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break; |
337 |
|
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case 'h': XDrawLine (d.display->display, d, GC, x0, y1, x1, y1); break; |
339 |
case 'H': XDrawLine (d.display->display, d, GC, x1, y1, x2, y1); break; |
340 |
case 'v': XDrawLine (d.display->display, d, GC, x1, y0, x1, y1); break; |
341 |
case 'V': XDrawLine (d.display->display, d, GC, x1, y1, x1, y2); break; |
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case 'a': XDrawLine (d.display->display, d, GC, x0, y2, x2, y0); break; |
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case 'b': XDrawLine (d.display->display, d, GC, x0, y0, x2, y2); break; |
344 |
} |
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} |
346 |
|
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gcv.line_width = 0; |
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XChangeGC (d.display->display, GC, GCLineWidth, &gcv); |
349 |
} |
350 |
else |
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switch (t) |
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{ |
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case ZERO_WIDTH_CHAR: |
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break; |
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default: |
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int w = 0; |
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while (len > 0 && *text == NOCHAR) |
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{ |
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++text; |
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--len; |
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w += r->TermWin.fwidth; |
362 |
} |
363 |
|
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XDrawRectangle (d.display->display, d, GC, x + 2, y + 2, |
365 |
w + r->TermWin.fwidth - 5, r->TermWin.fheight - 5); |
366 |
x += w; |
367 |
} |
368 |
|
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x += r->TermWin.fwidth; |
370 |
} |
371 |
} |
372 |
|
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///////////////////////////////////////////////////////////////////////////// |
374 |
|
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struct rxvt_font_x11 : rxvt_font { |
376 |
rxvt_font_x11 () { f = 0; } |
377 |
|
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void clear (); |
379 |
|
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rxvt_fontprop properties (); |
381 |
|
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bool load (const rxvt_fontprop &prop); |
383 |
|
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bool has_codepoint (uint32_t unicode); |
385 |
|
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void draw (rxvt_drawable &d, int x, int y, |
387 |
const text_t *text, int len, |
388 |
int fg, int bg); |
389 |
|
390 |
XFontStruct *f; |
391 |
codeset cs; |
392 |
bool enc2b, encm; |
393 |
|
394 |
const char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
395 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
396 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
397 |
bool set_properties (rxvt_fontprop &p, const char *name); |
398 |
}; |
399 |
|
400 |
const char * |
401 |
rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
402 |
{ |
403 |
unsigned long value; |
404 |
|
405 |
if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
406 |
return XGetAtomName (DISPLAY, value); |
407 |
else |
408 |
return repl; |
409 |
} |
410 |
|
411 |
rxvt_fontprop |
412 |
rxvt_font_x11::properties () |
413 |
{ |
414 |
rxvt_fontprop p; |
415 |
set_properties (p, f); |
416 |
return p; |
417 |
} |
418 |
|
419 |
bool |
420 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
421 |
{ |
422 |
p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
423 |
p.height = height; |
424 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
425 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
426 |
|
427 |
return true; |
428 |
} |
429 |
|
430 |
bool |
431 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
432 |
{ |
433 |
const char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
434 |
const char *slant = get_property (f, "SLANT", "r"); |
435 |
|
436 |
unsigned long height; |
437 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height)) |
438 |
return false; |
439 |
|
440 |
unsigned long avgwidth; |
441 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth)) |
442 |
avgwidth = 0; |
443 |
|
444 |
return set_properties (p, height, weight, slant, avgwidth); |
445 |
} |
446 |
|
447 |
bool |
448 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
449 |
{ |
450 |
int slashes = 0; |
451 |
const char *comp[13]; |
452 |
|
453 |
for (const char *c = name; *c; c++) |
454 |
if (*c == '-') |
455 |
{ |
456 |
comp[slashes++] = c + 1; |
457 |
if (slashes >= 13) |
458 |
break; |
459 |
} |
460 |
|
461 |
/* can we short-circuit the costly XLoadQueryFont? */ |
462 |
if (slashes >= 13 |
463 |
&& (*comp[ 6] >= '1' && *comp[ 6] <= '9') |
464 |
&& (*comp[11] >= '0' && *comp[11] <= '9')) |
465 |
return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11])); |
466 |
|
467 |
XFontStruct *f = XLoadQueryFont (DISPLAY, name); |
468 |
|
469 |
if (f) |
470 |
{ |
471 |
// the font should really exist now. if not, we have a problem |
472 |
// (e.g. if the user did xset fp rehash just when we were searching fonts). |
473 |
// in that case, just return garbage. |
474 |
bool ret = set_properties (p, f); |
475 |
XFreeFont (DISPLAY, f); |
476 |
return ret; |
477 |
} |
478 |
else |
479 |
return false; |
480 |
} |
481 |
|
482 |
// fix the size of scalable fonts |
483 |
static void |
484 |
fix_scalable (char *buf, const char *name, const rxvt_fontprop &prop) |
485 |
{ |
486 |
int slashes = 0; |
487 |
const char *size; |
488 |
|
489 |
for (const char *c = name; *c; c++) |
490 |
if (*c == '-') |
491 |
{ |
492 |
if (slashes == 6) |
493 |
size = c + 1; |
494 |
|
495 |
if (++slashes >= 13) |
496 |
break; |
497 |
} |
498 |
|
499 |
if (slashes >= 13 && size[0] == '0') |
500 |
{ |
501 |
strncpy (buf, name, size - name); |
502 |
buf += size - name; |
503 |
buf += sprintf (buf, "%d", prop.height); |
504 |
strcpy (buf, size + 1); |
505 |
} |
506 |
else |
507 |
strcpy (buf, name); |
508 |
} |
509 |
|
510 |
bool |
511 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
512 |
{ |
513 |
clear (); |
514 |
|
515 |
char **list; |
516 |
int count; |
517 |
list = XListFonts (DISPLAY, name, 512, &count); |
518 |
set_name (0); |
519 |
|
520 |
if (!list) |
521 |
return false; |
522 |
|
523 |
int bestdiff = 0x7fffffff; |
524 |
for (int i = 0; i < count; i++) |
525 |
{ |
526 |
rxvt_fontprop p; |
527 |
char fname[1024]; |
528 |
fix_scalable (fname, list[i], prop); |
529 |
|
530 |
if (!set_properties (p, fname)) |
531 |
continue; |
532 |
|
533 |
if (p.height > prop.height) // weed out too large fonts |
534 |
continue; |
535 |
|
536 |
int diff = (prop.height - p.height) * 32 |
537 |
+ abs (prop.weight - p.weight) |
538 |
+ abs (prop.slant - p.slant ); |
539 |
|
540 |
if (!name // compare against best found so far |
541 |
|| diff < bestdiff) |
542 |
{ |
543 |
set_name (strdup (fname)); |
544 |
bestdiff = diff; |
545 |
} |
546 |
} |
547 |
|
548 |
XFreeFontNames (list); |
549 |
|
550 |
if (!name) |
551 |
return false; |
552 |
|
553 |
f = XLoadQueryFont (DISPLAY, name); |
554 |
|
555 |
if (!f) |
556 |
return false; |
557 |
|
558 |
const char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
559 |
const char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
560 |
|
561 |
if (registry && encoding) |
562 |
{ |
563 |
char charset[64]; |
564 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
565 |
|
566 |
cs = codeset_from_name (charset); |
567 |
} |
568 |
else |
569 |
{ |
570 |
const char *charset = get_property (f, "FONT", 0); |
571 |
|
572 |
if (!charset) |
573 |
charset = name; |
574 |
|
575 |
int count = 13; |
576 |
while (*charset) |
577 |
if (*charset++ == '-' && !--count) |
578 |
break; |
579 |
|
580 |
cs = codeset_from_name (charset); |
581 |
} |
582 |
|
583 |
if (cs == CS_UNICODE) |
584 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
585 |
|
586 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
587 |
enc2b = encm || f->max_char_or_byte2 > 255; |
588 |
|
589 |
ascent = f->ascent; |
590 |
descent = f->descent; |
591 |
height = ascent + descent; |
592 |
|
593 |
slow = false; |
594 |
|
595 |
if (f->min_bounds.width == f->max_bounds.width) |
596 |
width = f->min_bounds.width; |
597 |
else if (f->per_char == NULL) |
598 |
width = f->max_bounds.width; |
599 |
else |
600 |
{ |
601 |
slow = true; |
602 |
|
603 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
604 |
|
605 |
if (encm) |
606 |
N += (f->max_byte1 - f->min_byte1) |
607 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
608 |
|
609 |
while (N) |
610 |
{ |
611 |
if (f->per_char[N].width > width) |
612 |
width = f->per_char[N].width; |
613 |
|
614 |
--N; |
615 |
} |
616 |
} |
617 |
|
618 |
if (cs == CS_UNKNOWN) |
619 |
{ |
620 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
621 |
|
622 |
clear (); |
623 |
|
624 |
return false; |
625 |
} |
626 |
|
627 |
return true; |
628 |
} |
629 |
|
630 |
void |
631 |
rxvt_font_x11::clear () |
632 |
{ |
633 |
if (f) |
634 |
{ |
635 |
XFreeFont (DISPLAY, f); |
636 |
f = 0; |
637 |
} |
638 |
} |
639 |
|
640 |
bool |
641 |
rxvt_font_x11::has_codepoint (uint32_t unicode) |
642 |
{ |
643 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
644 |
|
645 |
if (ch == NOCHAR) |
646 |
return false; |
647 |
|
648 |
/* check wether the character exists in _this_ font. horrible. */ |
649 |
XCharStruct *xcs; |
650 |
|
651 |
if (encm) |
652 |
{ |
653 |
unsigned char byte1 = ch >> 8; |
654 |
unsigned char byte2 = ch & 255; |
655 |
|
656 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
657 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
658 |
return false; |
659 |
|
660 |
if (!f->per_char) |
661 |
return true; |
662 |
|
663 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
664 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
665 |
|
666 |
xcs = f->per_char + N; |
667 |
} |
668 |
else |
669 |
{ |
670 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
671 |
return false; |
672 |
|
673 |
if (!f->per_char) |
674 |
return true; |
675 |
|
676 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
677 |
} |
678 |
|
679 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
680 |
&& xcs->ascent == 0 && xcs->descent == 0) |
681 |
return false; |
682 |
|
683 |
return true; |
684 |
} |
685 |
|
686 |
void |
687 |
rxvt_font_x11::draw (rxvt_drawable &d, int x, int y, |
688 |
const text_t *text, int len, |
689 |
int fg, int bg) |
690 |
{ |
691 |
// this looks like a mess /. |
692 |
// and it is a mess /. |
693 |
// yet we are trying to be perfect /. |
694 |
// but the result still isn't perfect /. |
695 |
|
696 |
bool slow = this->slow |
697 |
|| width != r->TermWin.fwidth |
698 |
|| height != r->TermWin.fheight; |
699 |
|
700 |
int base = r->TermWin.fbase; |
701 |
|
702 |
XGCValues v; |
703 |
v.foreground = r->PixColors[fg]; |
704 |
v.background = r->PixColors[bg]; |
705 |
v.font = f->fid; |
706 |
|
707 |
if (enc2b) |
708 |
{ |
709 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
710 |
|
711 |
if (bg == Color_bg && !slow) |
712 |
{ |
713 |
XChangeGC (d.display->display, GC, GCForeground | GCBackground | GCFont, &v); |
714 |
XDrawImageString16 (d.display->display, d, GC, x, y + base, xc, len); |
715 |
} |
716 |
else |
717 |
{ |
718 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
719 |
|
720 |
XChangeGC (d.display->display, GC, GCForeground | GCFont, &v); |
721 |
|
722 |
if (slow) |
723 |
{ |
724 |
do |
725 |
{ |
726 |
if (xc->byte1 || xc->byte2) |
727 |
XDrawString16 (d.display->display, d, GC, x, y + base, xc, 1); |
728 |
|
729 |
x += r->TermWin.fwidth; |
730 |
xc++; len--; |
731 |
} |
732 |
while (len); |
733 |
} |
734 |
else |
735 |
XDrawString16 (d.display->display, d, GC, x, y + base, xc, len); |
736 |
} |
737 |
} |
738 |
else |
739 |
{ |
740 |
const char *xc = enc_char (text, len, cs, slow); |
741 |
|
742 |
if (bg == Color_bg && !slow) |
743 |
{ |
744 |
XChangeGC (d.display->display, GC, GCForeground | GCBackground | GCFont, &v); |
745 |
XDrawImageString (d.display->display, d, GC, x, y + base, xc, len); |
746 |
} |
747 |
else |
748 |
{ |
749 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
750 |
|
751 |
XChangeGC (d.display->display, GC, GCForeground | GCFont, &v); |
752 |
|
753 |
if (slow) |
754 |
{ |
755 |
do |
756 |
{ |
757 |
if (*xc) |
758 |
XDrawString (d.display->display, d, GC, x, y + base, xc, 1); |
759 |
|
760 |
x += r->TermWin.fwidth; |
761 |
xc++; len--; |
762 |
} |
763 |
while (len); |
764 |
} |
765 |
else |
766 |
XDrawString (d.display->display, d, GC, x, y + base, xc, len); |
767 |
} |
768 |
} |
769 |
} |
770 |
|
771 |
///////////////////////////////////////////////////////////////////////////// |
772 |
|
773 |
#if XFT |
774 |
#if 0 |
775 |
#define UNIBITS 21 |
776 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
777 |
#define SWATHBITS 8 |
778 |
#endif |
779 |
|
780 |
struct rxvt_font_xft : rxvt_font { |
781 |
rxvt_font_xft () { f = 0; } |
782 |
|
783 |
void clear (); |
784 |
|
785 |
rxvt_fontprop properties (); |
786 |
|
787 |
bool load (const rxvt_fontprop &prop); |
788 |
|
789 |
void draw (rxvt_drawable &d, int x, int y, |
790 |
const text_t *text, int len, |
791 |
int fg, int bg); |
792 |
|
793 |
bool has_codepoint (uint32_t unicode); |
794 |
|
795 |
protected: |
796 |
XftFont *f; |
797 |
}; |
798 |
|
799 |
void |
800 |
rxvt_font_xft::clear () |
801 |
{ |
802 |
if (f) |
803 |
{ |
804 |
XftFontClose (DISPLAY, f); |
805 |
f = 0; |
806 |
} |
807 |
} |
808 |
|
809 |
rxvt_fontprop |
810 |
rxvt_font_xft::properties () |
811 |
{ |
812 |
rxvt_fontprop p; |
813 |
|
814 |
FT_Face face = XftLockFace (f); |
815 |
|
816 |
p.width = width; p.height = height; |
817 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
818 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC ? rxvt_fontprop::italic : rxvt_fontprop::roman; |
819 |
|
820 |
XftUnlockFace (f); |
821 |
|
822 |
return p; |
823 |
} |
824 |
|
825 |
bool |
826 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
827 |
{ |
828 |
#if 0 |
829 |
for (int i = 0; i < SWATHCOUNT; i++) |
830 |
cvr[i] = 0; |
831 |
#endif |
832 |
|
833 |
clear (); |
834 |
|
835 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
836 |
|
837 |
if (!p) |
838 |
return false; |
839 |
|
840 |
FcValue v; |
841 |
|
842 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
843 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
844 |
|
845 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
846 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
847 |
|
848 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
849 |
// clip width, we can't do better, or can we? |
850 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
851 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop.width); |
852 |
#endif |
853 |
|
854 |
//FcPatternAddBool (p, FC_MINSPACE, 1); |
855 |
|
856 |
XftResult result; |
857 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
858 |
|
859 |
FcPatternDestroy (p); |
860 |
|
861 |
if (!match) |
862 |
return false; |
863 |
|
864 |
f = XftFontOpenPattern (DISPLAY, match); |
865 |
|
866 |
if (!f) |
867 |
{ |
868 |
FcPatternDestroy (match); |
869 |
return false; |
870 |
} |
871 |
|
872 |
FT_Face face = XftLockFace (f); |
873 |
|
874 |
slow = !FT_IS_FIXED_WIDTH (face); |
875 |
|
876 |
int ftheight = 0; |
877 |
|
878 |
for (;;) |
879 |
{ |
880 |
XGlyphInfo g1, g2; |
881 |
FcChar8 c; |
882 |
|
883 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
884 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
885 |
|
886 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
887 |
slow = true; |
888 |
|
889 |
width = g2.xOff; |
890 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
891 |
descent = (-face->size->metrics.descender + 63) >> 6; |
892 |
height = ascent + descent; |
893 |
|
894 |
if (height <= prop.height || !prop.height) |
895 |
break; |
896 |
|
897 |
if (ftheight) |
898 |
{ |
899 |
// take smaller steps near the end |
900 |
if (height > prop.height + 1) ftheight++; |
901 |
if (height > prop.height + 2) ftheight++; |
902 |
if (height > prop.height + 3) ftheight++; |
903 |
|
904 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
905 |
} |
906 |
else |
907 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
908 |
} |
909 |
|
910 |
XftUnlockFace (f); |
911 |
|
912 |
return true; |
913 |
} |
914 |
|
915 |
bool |
916 |
rxvt_font_xft::has_codepoint (uint32_t unicode) |
917 |
{ |
918 |
return XftCharExists (DISPLAY, f, unicode); |
919 |
} |
920 |
|
921 |
void |
922 |
rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, |
923 |
const text_t *text, int len, |
924 |
int fg, int bg) |
925 |
{ |
926 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
927 |
|
928 |
if (!slow && width == r->TermWin.fwidth && 0) |
929 |
{ |
930 |
if (sizeof (text_t) == sizeof (FcChar16)) |
931 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
932 |
else |
933 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
934 |
} |
935 |
else |
936 |
{ |
937 |
while (len) |
938 |
{ |
939 |
if (*text != NOCHAR && *text != ' ') |
940 |
{ |
941 |
int fwidth = r->TermWin.fwidth; |
942 |
if (len >= 2 && text[1] == NOCHAR) |
943 |
fwidth *= 2; |
944 |
|
945 |
XGlyphInfo extents; |
946 |
if (sizeof (text_t) == sizeof (FcChar16)) |
947 |
{ |
948 |
XftTextExtents16 (d.display->display, f, (const FcChar16 *)text, 1, &extents); |
949 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
950 |
y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
951 |
} |
952 |
else |
953 |
{ |
954 |
XGlyphInfo extents; |
955 |
XftTextExtents32 (d.display->display, f, (const FcChar32 *)text, 1, &extents); |
956 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
957 |
y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
958 |
} |
959 |
} |
960 |
|
961 |
x += r->TermWin.fwidth; |
962 |
text++; |
963 |
len--; |
964 |
} |
965 |
} |
966 |
} |
967 |
#endif |
968 |
|
969 |
///////////////////////////////////////////////////////////////////////////// |
970 |
|
971 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
972 |
: r (r) |
973 |
{ |
974 |
clear (); |
975 |
} |
976 |
|
977 |
rxvt_fontset::~rxvt_fontset () |
978 |
{ |
979 |
clear (); |
980 |
} |
981 |
|
982 |
void |
983 |
rxvt_fontset::clear () |
984 |
{ |
985 |
for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) |
986 |
FONT_UNREF (*i); |
987 |
|
988 |
fonts.clear (); |
989 |
base_id = 0; |
990 |
base_prop.height = 0x7fffffff; |
991 |
base_prop.weight = rxvt_fontprop::medium; |
992 |
base_prop.slant = rxvt_fontprop::roman; |
993 |
|
994 |
fallback = fallback_fonts; |
995 |
} |
996 |
|
997 |
rxvt_font * |
998 |
rxvt_fontset::new_font (const char *name, codeset cs) |
999 |
{ |
1000 |
rxvt_font *f; |
1001 |
|
1002 |
if (!name || !*name) |
1003 |
{ |
1004 |
name = ""; |
1005 |
f = new rxvt_font_default; |
1006 |
} |
1007 |
#if XFT |
1008 |
else if (!strncmp (name, "xft:", 4)) |
1009 |
{ |
1010 |
name += 4; |
1011 |
f = new rxvt_font_xft; |
1012 |
} |
1013 |
#endif |
1014 |
else if (!strncmp (name, "x:", 2)) |
1015 |
{ |
1016 |
name += 2; |
1017 |
f = new rxvt_font_x11; |
1018 |
} |
1019 |
else |
1020 |
f = new rxvt_font_x11; |
1021 |
|
1022 |
f->set_term (r); |
1023 |
f->set_name (strdup (name)); |
1024 |
|
1025 |
f->cs = cs; |
1026 |
f->loaded = false; |
1027 |
|
1028 |
return f; |
1029 |
} |
1030 |
|
1031 |
///////////////////////////////////////////////////////////////////////////// |
1032 |
|
1033 |
void |
1034 |
rxvt_fontset::add_fonts (const char *desc) |
1035 |
{ |
1036 |
if (desc) |
1037 |
{ |
1038 |
char buf[512]; |
1039 |
const char *end; |
1040 |
|
1041 |
do |
1042 |
{ |
1043 |
while (*desc <= ' ') desc++; |
1044 |
|
1045 |
if (*desc == '[') |
1046 |
{ |
1047 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
1048 |
|
1049 |
//const char *extra = desc++; // not yet used |
1050 |
|
1051 |
desc = strchr (desc, ']'); |
1052 |
|
1053 |
if (!desc) |
1054 |
{ |
1055 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
1056 |
break; |
1057 |
} |
1058 |
|
1059 |
desc++; |
1060 |
while (*desc <= ' ') desc++; |
1061 |
} |
1062 |
|
1063 |
end = strchr (desc, ','); |
1064 |
if (!end) |
1065 |
end = desc + strlen (desc); |
1066 |
|
1067 |
if (end - desc < 511) |
1068 |
{ |
1069 |
strncpy (buf, desc, end - desc); |
1070 |
buf[end - desc] = 0; |
1071 |
|
1072 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
1073 |
} |
1074 |
|
1075 |
desc = end + 1; |
1076 |
} |
1077 |
while (*end); |
1078 |
} |
1079 |
} |
1080 |
|
1081 |
bool |
1082 |
rxvt_fontset::realize_font (int i) |
1083 |
{ |
1084 |
if (fonts[i]->loaded) |
1085 |
return true; |
1086 |
|
1087 |
fonts[i]->loaded = true; |
1088 |
|
1089 |
if (!fonts[i]->load (base_prop)) |
1090 |
{ |
1091 |
fonts[i]->cs = CS_UNKNOWN; |
1092 |
return false; |
1093 |
} |
1094 |
|
1095 |
return true; |
1096 |
} |
1097 |
|
1098 |
bool |
1099 |
rxvt_fontset::populate (const char *desc) |
1100 |
{ |
1101 |
clear (); |
1102 |
|
1103 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1104 |
realize_font (0); |
1105 |
|
1106 |
add_fonts (desc); |
1107 |
|
1108 |
if (!base_id) |
1109 |
base_id = 1; |
1110 |
|
1111 |
// we currently need a base-font, no matter what |
1112 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1113 |
{ |
1114 |
puts ("unable to load specified font (s), falling back to 'fixed'\n"); |
1115 |
add_fonts ("fixed"); |
1116 |
base_id = fonts.size () - 1; |
1117 |
} |
1118 |
|
1119 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1120 |
return false; |
1121 |
|
1122 |
base_prop = fonts[base_id]->properties (); |
1123 |
|
1124 |
return true; |
1125 |
} |
1126 |
|
1127 |
int |
1128 |
rxvt_fontset::find_font (uint32_t unicode) |
1129 |
{ |
1130 |
for (unsigned int i = 0; i < fonts.size (); i++) |
1131 |
{ |
1132 |
rxvt_font *f = fonts[i]; |
1133 |
|
1134 |
if (!f->loaded) |
1135 |
{ |
1136 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1137 |
goto next_font; |
1138 |
|
1139 |
if (!realize_font (i)) |
1140 |
goto next_font; |
1141 |
} |
1142 |
|
1143 |
if (f->cs != CS_UNKNOWN && f->has_codepoint (unicode)) |
1144 |
return i; |
1145 |
|
1146 |
next_font: |
1147 |
if (i == fonts.size () - 1 && fallback->name) |
1148 |
{ |
1149 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1150 |
fallback++; |
1151 |
i = 0; |
1152 |
} |
1153 |
} |
1154 |
|
1155 |
return 0; /* we must return SOME font */ |
1156 |
} |
1157 |
|
1158 |
|
1159 |
|