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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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|
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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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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, 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; |
325 |
|
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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; |
336 |
|
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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; |
341 |
|
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case 'h': XDrawLine (d.display->display, d, GC, x0, y1, x1, y1); break; |
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case 'H': XDrawLine (d.display->display, d, GC, x1, y1, x2, y1); break; |
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case 'v': XDrawLine (d.display->display, d, GC, x1, y0, x1, y1); break; |
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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; |
348 |
} |
349 |
} |
350 |
|
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gcv.line_width = 0; |
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XChangeGC (d.display->display, GC, GCLineWidth, &gcv); |
353 |
} |
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else if (IS_COMPOSE (t)) |
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{ |
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const compose_char &cc = rxvt_composite[t]; |
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(void)0; //D ADD pseudo handling here |
358 |
} |
359 |
else |
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switch (t) |
361 |
{ |
362 |
case ZERO_WIDTH_CHAR: |
363 |
break; |
364 |
default: |
365 |
int w = 0; |
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while (len > 0 && *text == NOCHAR) |
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{ |
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++text; |
369 |
--len; |
370 |
w += r->TermWin.fwidth; |
371 |
} |
372 |
|
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XDrawRectangle (d.display->display, d, GC, x + 2, y + 2, |
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w + r->TermWin.fwidth - 5, r->TermWin.fheight - 5); |
375 |
x += w; |
376 |
} |
377 |
|
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x += r->TermWin.fwidth; |
379 |
} |
380 |
} |
381 |
|
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///////////////////////////////////////////////////////////////////////////// |
383 |
|
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struct rxvt_font_x11 : rxvt_font { |
385 |
rxvt_font_x11 () { f = 0; } |
386 |
|
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void clear (); |
388 |
|
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rxvt_fontprop properties (); |
390 |
|
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bool load (const rxvt_fontprop &prop); |
392 |
|
393 |
bool has_codepoint (uint32_t unicode); |
394 |
|
395 |
void draw (rxvt_drawable &d, int x, int y, |
396 |
const text_t *text, int len, |
397 |
int fg, int bg); |
398 |
|
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XFontStruct *f; |
400 |
codeset cs; |
401 |
bool enc2b, encm; |
402 |
|
403 |
const char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
404 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
405 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
406 |
bool set_properties (rxvt_fontprop &p, const char *name); |
407 |
}; |
408 |
|
409 |
const char * |
410 |
rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
411 |
{ |
412 |
unsigned long value; |
413 |
|
414 |
if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
415 |
return XGetAtomName (DISPLAY, value); |
416 |
else |
417 |
return repl; |
418 |
} |
419 |
|
420 |
rxvt_fontprop |
421 |
rxvt_font_x11::properties () |
422 |
{ |
423 |
rxvt_fontprop p; |
424 |
set_properties (p, f); |
425 |
return p; |
426 |
} |
427 |
|
428 |
bool |
429 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
430 |
{ |
431 |
p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
432 |
p.height = height; |
433 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
434 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
435 |
|
436 |
return true; |
437 |
} |
438 |
|
439 |
bool |
440 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
441 |
{ |
442 |
const char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
443 |
const char *slant = get_property (f, "SLANT", "r"); |
444 |
|
445 |
unsigned long height; |
446 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height)) |
447 |
return false; |
448 |
|
449 |
unsigned long avgwidth; |
450 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth)) |
451 |
avgwidth = 0; |
452 |
|
453 |
return set_properties (p, height, weight, slant, avgwidth); |
454 |
} |
455 |
|
456 |
bool |
457 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
458 |
{ |
459 |
int slashes = 0; |
460 |
const char *comp[13]; |
461 |
|
462 |
for (const char *c = name; *c; c++) |
463 |
if (*c == '-') |
464 |
{ |
465 |
comp[slashes++] = c + 1; |
466 |
if (slashes >= 13) |
467 |
break; |
468 |
} |
469 |
|
470 |
/* can we short-circuit the costly XLoadQueryFont? */ |
471 |
if (slashes >= 13 |
472 |
&& (*comp[ 6] >= '1' && *comp[ 6] <= '9') |
473 |
&& (*comp[11] >= '0' && *comp[11] <= '9')) |
474 |
return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11])); |
475 |
|
476 |
XFontStruct *f = XLoadQueryFont (DISPLAY, name); |
477 |
|
478 |
if (f) |
479 |
{ |
480 |
// the font should really exist now. if not, we have a problem |
481 |
// (e.g. if the user did xset fp rehash just when we were searching fonts). |
482 |
// in that case, just return garbage. |
483 |
bool ret = set_properties (p, f); |
484 |
XFreeFont (DISPLAY, f); |
485 |
return ret; |
486 |
} |
487 |
else |
488 |
return false; |
489 |
} |
490 |
|
491 |
// fix the size of scalable fonts |
492 |
static void |
493 |
fix_scalable (char *buf, const char *name, const rxvt_fontprop &prop) |
494 |
{ |
495 |
int slashes = 0; |
496 |
const char *size; |
497 |
|
498 |
for (const char *c = name; *c; c++) |
499 |
if (*c == '-') |
500 |
{ |
501 |
if (slashes == 6) |
502 |
size = c + 1; |
503 |
|
504 |
if (++slashes >= 13) |
505 |
break; |
506 |
} |
507 |
|
508 |
if (slashes >= 13 && size[0] == '0') |
509 |
{ |
510 |
strncpy (buf, name, size - name); |
511 |
buf += size - name; |
512 |
buf += sprintf (buf, "%d", prop.height); |
513 |
strcpy (buf, size + 1); |
514 |
} |
515 |
else |
516 |
strcpy (buf, name); |
517 |
} |
518 |
|
519 |
bool |
520 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
521 |
{ |
522 |
clear (); |
523 |
|
524 |
char **list; |
525 |
int count; |
526 |
list = XListFonts (DISPLAY, name, 512, &count); |
527 |
set_name (0); |
528 |
|
529 |
if (!list) |
530 |
return false; |
531 |
|
532 |
int bestdiff = 0x7fffffff; |
533 |
for (int i = 0; i < count; i++) |
534 |
{ |
535 |
rxvt_fontprop p; |
536 |
char fname[1024]; |
537 |
fix_scalable (fname, list[i], prop); |
538 |
|
539 |
if (!set_properties (p, fname)) |
540 |
continue; |
541 |
|
542 |
if (p.height > prop.height) // weed out too large fonts |
543 |
continue; |
544 |
|
545 |
int diff = (prop.height - p.height) * 32 |
546 |
+ abs (prop.weight - p.weight) |
547 |
+ abs (prop.slant - p.slant ); |
548 |
|
549 |
if (!name // compare against best found so far |
550 |
|| diff < bestdiff) |
551 |
{ |
552 |
set_name (strdup (fname)); |
553 |
bestdiff = diff; |
554 |
} |
555 |
} |
556 |
|
557 |
XFreeFontNames (list); |
558 |
|
559 |
if (!name) |
560 |
return false; |
561 |
|
562 |
f = XLoadQueryFont (DISPLAY, name); |
563 |
|
564 |
if (!f) |
565 |
return false; |
566 |
|
567 |
const char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
568 |
const char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
569 |
|
570 |
if (registry && encoding) |
571 |
{ |
572 |
char charset[64]; |
573 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
574 |
|
575 |
cs = codeset_from_name (charset); |
576 |
} |
577 |
else |
578 |
{ |
579 |
const char *charset = get_property (f, "FONT", 0); |
580 |
|
581 |
if (!charset) |
582 |
charset = name; |
583 |
|
584 |
int count = 13; |
585 |
while (*charset) |
586 |
if (*charset++ == '-' && !--count) |
587 |
break; |
588 |
|
589 |
cs = codeset_from_name (charset); |
590 |
} |
591 |
|
592 |
if (cs == CS_UNICODE) |
593 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
594 |
|
595 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
596 |
enc2b = encm || f->max_char_or_byte2 > 255; |
597 |
|
598 |
ascent = f->ascent; |
599 |
descent = f->descent; |
600 |
height = ascent + descent; |
601 |
|
602 |
slow = false; |
603 |
|
604 |
if (f->min_bounds.width == f->max_bounds.width) |
605 |
width = f->min_bounds.width; |
606 |
else if (f->per_char == NULL) |
607 |
width = f->max_bounds.width; |
608 |
else |
609 |
{ |
610 |
slow = true; |
611 |
|
612 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
613 |
|
614 |
if (encm) |
615 |
N += (f->max_byte1 - f->min_byte1) |
616 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
617 |
|
618 |
while (N) |
619 |
{ |
620 |
if (f->per_char[N].width > width) |
621 |
width = f->per_char[N].width; |
622 |
|
623 |
--N; |
624 |
} |
625 |
} |
626 |
|
627 |
if (cs == CS_UNKNOWN) |
628 |
{ |
629 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
630 |
|
631 |
clear (); |
632 |
|
633 |
return false; |
634 |
} |
635 |
|
636 |
return true; |
637 |
} |
638 |
|
639 |
void |
640 |
rxvt_font_x11::clear () |
641 |
{ |
642 |
if (f) |
643 |
{ |
644 |
XFreeFont (DISPLAY, f); |
645 |
f = 0; |
646 |
} |
647 |
} |
648 |
|
649 |
bool |
650 |
rxvt_font_x11::has_codepoint (uint32_t unicode) |
651 |
{ |
652 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
653 |
|
654 |
if (ch == NOCHAR) |
655 |
return false; |
656 |
|
657 |
/* check wether the character exists in _this_ font. horrible. */ |
658 |
XCharStruct *xcs; |
659 |
|
660 |
if (encm) |
661 |
{ |
662 |
unsigned char byte1 = ch >> 8; |
663 |
unsigned char byte2 = ch & 255; |
664 |
|
665 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
666 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
667 |
return false; |
668 |
|
669 |
if (!f->per_char) |
670 |
return true; |
671 |
|
672 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
673 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
674 |
|
675 |
xcs = f->per_char + N; |
676 |
} |
677 |
else |
678 |
{ |
679 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
680 |
return false; |
681 |
|
682 |
if (!f->per_char) |
683 |
return true; |
684 |
|
685 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
686 |
} |
687 |
|
688 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
689 |
&& xcs->ascent == 0 && xcs->descent == 0) |
690 |
return false; |
691 |
|
692 |
return true; |
693 |
} |
694 |
|
695 |
void |
696 |
rxvt_font_x11::draw (rxvt_drawable &d, int x, int y, |
697 |
const text_t *text, int len, |
698 |
int fg, int bg) |
699 |
{ |
700 |
// this looks like a mess /. |
701 |
// and it is a mess /. |
702 |
// yet we are trying to be perfect /. |
703 |
// but the result still isn't perfect /. |
704 |
|
705 |
bool slow = this->slow |
706 |
|| width != r->TermWin.fwidth |
707 |
|| height != r->TermWin.fheight; |
708 |
|
709 |
int base = r->TermWin.fbase; |
710 |
|
711 |
XGCValues v; |
712 |
v.foreground = r->PixColors[fg]; |
713 |
v.background = r->PixColors[bg]; |
714 |
v.font = f->fid; |
715 |
|
716 |
if (enc2b) |
717 |
{ |
718 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
719 |
|
720 |
if (bg == Color_bg && !slow) |
721 |
{ |
722 |
XChangeGC (d.display->display, GC, GCForeground | GCBackground | GCFont, &v); |
723 |
XDrawImageString16 (d.display->display, d, GC, x, y + base, xc, len); |
724 |
} |
725 |
else |
726 |
{ |
727 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
728 |
|
729 |
XChangeGC (d.display->display, GC, GCForeground | GCFont, &v); |
730 |
|
731 |
if (slow) |
732 |
{ |
733 |
do |
734 |
{ |
735 |
if (xc->byte1 || xc->byte2) |
736 |
XDrawString16 (d.display->display, d, GC, x, y + base, xc, 1); |
737 |
|
738 |
x += r->TermWin.fwidth; |
739 |
xc++; len--; |
740 |
} |
741 |
while (len); |
742 |
} |
743 |
else |
744 |
XDrawString16 (d.display->display, d, GC, x, y + base, xc, len); |
745 |
} |
746 |
} |
747 |
else |
748 |
{ |
749 |
const char *xc = enc_char (text, len, cs, slow); |
750 |
|
751 |
if (bg == Color_bg && !slow) |
752 |
{ |
753 |
XChangeGC (d.display->display, GC, GCForeground | GCBackground | GCFont, &v); |
754 |
XDrawImageString (d.display->display, d, GC, x, y + base, xc, len); |
755 |
} |
756 |
else |
757 |
{ |
758 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
759 |
|
760 |
XChangeGC (d.display->display, GC, GCForeground | GCFont, &v); |
761 |
|
762 |
if (slow) |
763 |
{ |
764 |
do |
765 |
{ |
766 |
if (*xc) |
767 |
XDrawString (d.display->display, d, GC, x, y + base, xc, 1); |
768 |
|
769 |
x += r->TermWin.fwidth; |
770 |
xc++; len--; |
771 |
} |
772 |
while (len); |
773 |
} |
774 |
else |
775 |
XDrawString (d.display->display, d, GC, x, y + base, xc, len); |
776 |
} |
777 |
} |
778 |
} |
779 |
|
780 |
///////////////////////////////////////////////////////////////////////////// |
781 |
|
782 |
#if XFT |
783 |
#if 0 |
784 |
#define UNIBITS 21 |
785 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
786 |
#define SWATHBITS 8 |
787 |
#endif |
788 |
|
789 |
struct rxvt_font_xft : rxvt_font { |
790 |
rxvt_font_xft () { f = 0; } |
791 |
|
792 |
void clear (); |
793 |
|
794 |
rxvt_fontprop properties (); |
795 |
|
796 |
bool load (const rxvt_fontprop &prop); |
797 |
|
798 |
void draw (rxvt_drawable &d, int x, int y, |
799 |
const text_t *text, int len, |
800 |
int fg, int bg); |
801 |
|
802 |
bool has_codepoint (uint32_t unicode); |
803 |
|
804 |
protected: |
805 |
XftFont *f; |
806 |
}; |
807 |
|
808 |
void |
809 |
rxvt_font_xft::clear () |
810 |
{ |
811 |
if (f) |
812 |
{ |
813 |
XftFontClose (DISPLAY, f); |
814 |
f = 0; |
815 |
} |
816 |
} |
817 |
|
818 |
rxvt_fontprop |
819 |
rxvt_font_xft::properties () |
820 |
{ |
821 |
rxvt_fontprop p; |
822 |
|
823 |
FT_Face face = XftLockFace (f); |
824 |
|
825 |
p.width = width; p.height = height; |
826 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
827 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC ? rxvt_fontprop::italic : rxvt_fontprop::roman; |
828 |
|
829 |
XftUnlockFace (f); |
830 |
|
831 |
return p; |
832 |
} |
833 |
|
834 |
bool |
835 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
836 |
{ |
837 |
#if 0 |
838 |
for (int i = 0; i < SWATHCOUNT; i++) |
839 |
cvr[i] = 0; |
840 |
#endif |
841 |
|
842 |
clear (); |
843 |
|
844 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
845 |
|
846 |
if (!p) |
847 |
return false; |
848 |
|
849 |
FcValue v; |
850 |
|
851 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
852 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
853 |
|
854 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
855 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
856 |
|
857 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
858 |
// clip width, we can't do better, or can we? |
859 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
860 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop.width); |
861 |
#endif |
862 |
|
863 |
//FcPatternAddBool (p, FC_MINSPACE, 1); |
864 |
|
865 |
XftResult result; |
866 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
867 |
|
868 |
FcPatternDestroy (p); |
869 |
|
870 |
if (!match) |
871 |
return false; |
872 |
|
873 |
f = XftFontOpenPattern (DISPLAY, match); |
874 |
|
875 |
if (!f) |
876 |
{ |
877 |
FcPatternDestroy (match); |
878 |
return false; |
879 |
} |
880 |
|
881 |
FT_Face face = XftLockFace (f); |
882 |
|
883 |
slow = !FT_IS_FIXED_WIDTH (face); |
884 |
|
885 |
int ftheight = 0; |
886 |
|
887 |
for (;;) |
888 |
{ |
889 |
XGlyphInfo g1, g2; |
890 |
FcChar8 c; |
891 |
|
892 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
893 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
894 |
|
895 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
896 |
slow = true; |
897 |
|
898 |
width = g2.xOff; |
899 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
900 |
descent = (-face->size->metrics.descender + 63) >> 6; |
901 |
height = ascent + descent; |
902 |
|
903 |
if (height <= prop.height || !prop.height) |
904 |
break; |
905 |
|
906 |
if (ftheight) |
907 |
{ |
908 |
// take smaller steps near the end |
909 |
if (height > prop.height + 1) ftheight++; |
910 |
if (height > prop.height + 2) ftheight++; |
911 |
if (height > prop.height + 3) ftheight++; |
912 |
|
913 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
914 |
} |
915 |
else |
916 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
917 |
} |
918 |
|
919 |
XftUnlockFace (f); |
920 |
|
921 |
return true; |
922 |
} |
923 |
|
924 |
bool |
925 |
rxvt_font_xft::has_codepoint (uint32_t unicode) |
926 |
{ |
927 |
return XftCharExists (DISPLAY, f, unicode); |
928 |
} |
929 |
|
930 |
void |
931 |
rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, |
932 |
const text_t *text, int len, |
933 |
int fg, int bg) |
934 |
{ |
935 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
936 |
|
937 |
if (!slow && width == r->TermWin.fwidth && 0) |
938 |
{ |
939 |
if (sizeof (text_t) == sizeof (FcChar16)) |
940 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
941 |
else |
942 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
943 |
} |
944 |
else |
945 |
{ |
946 |
while (len) |
947 |
{ |
948 |
if (*text != NOCHAR && *text != ' ') |
949 |
{ |
950 |
int fwidth = r->TermWin.fwidth; |
951 |
if (len >= 2 && text[1] == NOCHAR) |
952 |
fwidth *= 2; |
953 |
|
954 |
XGlyphInfo extents; |
955 |
if (sizeof (text_t) == sizeof (FcChar16)) |
956 |
{ |
957 |
XftTextExtents16 (d.display->display, f, (const FcChar16 *)text, 1, &extents); |
958 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
959 |
y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
960 |
} |
961 |
else |
962 |
{ |
963 |
XGlyphInfo extents; |
964 |
XftTextExtents32 (d.display->display, f, (const FcChar32 *)text, 1, &extents); |
965 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
966 |
y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
967 |
} |
968 |
} |
969 |
|
970 |
x += r->TermWin.fwidth; |
971 |
text++; |
972 |
len--; |
973 |
} |
974 |
} |
975 |
} |
976 |
#endif |
977 |
|
978 |
///////////////////////////////////////////////////////////////////////////// |
979 |
|
980 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
981 |
: r (r) |
982 |
{ |
983 |
clear (); |
984 |
} |
985 |
|
986 |
rxvt_fontset::~rxvt_fontset () |
987 |
{ |
988 |
clear (); |
989 |
} |
990 |
|
991 |
void |
992 |
rxvt_fontset::clear () |
993 |
{ |
994 |
for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) |
995 |
FONT_UNREF (*i); |
996 |
|
997 |
fonts.clear (); |
998 |
base_id = 0; |
999 |
base_prop.height = 0x7fffffff; |
1000 |
base_prop.weight = rxvt_fontprop::medium; |
1001 |
base_prop.slant = rxvt_fontprop::roman; |
1002 |
|
1003 |
fallback = fallback_fonts; |
1004 |
} |
1005 |
|
1006 |
rxvt_font * |
1007 |
rxvt_fontset::new_font (const char *name, codeset cs) |
1008 |
{ |
1009 |
rxvt_font *f; |
1010 |
|
1011 |
if (!name || !*name) |
1012 |
{ |
1013 |
name = ""; |
1014 |
f = new rxvt_font_default; |
1015 |
} |
1016 |
#if XFT |
1017 |
else if (!strncmp (name, "xft:", 4)) |
1018 |
{ |
1019 |
name += 4; |
1020 |
f = new rxvt_font_xft; |
1021 |
} |
1022 |
#endif |
1023 |
else if (!strncmp (name, "x:", 2)) |
1024 |
{ |
1025 |
name += 2; |
1026 |
f = new rxvt_font_x11; |
1027 |
} |
1028 |
else |
1029 |
f = new rxvt_font_x11; |
1030 |
|
1031 |
f->set_term (r); |
1032 |
f->set_name (strdup (name)); |
1033 |
|
1034 |
f->cs = cs; |
1035 |
f->loaded = false; |
1036 |
|
1037 |
return f; |
1038 |
} |
1039 |
|
1040 |
///////////////////////////////////////////////////////////////////////////// |
1041 |
|
1042 |
void |
1043 |
rxvt_fontset::add_fonts (const char *desc) |
1044 |
{ |
1045 |
if (desc) |
1046 |
{ |
1047 |
char buf[512]; |
1048 |
const char *end; |
1049 |
|
1050 |
do |
1051 |
{ |
1052 |
while (*desc <= ' ') desc++; |
1053 |
|
1054 |
if (*desc == '[') |
1055 |
{ |
1056 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
1057 |
|
1058 |
//const char *extra = desc++; // not yet used |
1059 |
|
1060 |
desc = strchr (desc, ']'); |
1061 |
|
1062 |
if (!desc) |
1063 |
{ |
1064 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
1065 |
break; |
1066 |
} |
1067 |
|
1068 |
desc++; |
1069 |
while (*desc <= ' ') desc++; |
1070 |
} |
1071 |
|
1072 |
end = strchr (desc, ','); |
1073 |
if (!end) |
1074 |
end = desc + strlen (desc); |
1075 |
|
1076 |
if (end - desc < 511) |
1077 |
{ |
1078 |
strncpy (buf, desc, end - desc); |
1079 |
buf[end - desc] = 0; |
1080 |
|
1081 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
1082 |
} |
1083 |
|
1084 |
desc = end + 1; |
1085 |
} |
1086 |
while (*end); |
1087 |
} |
1088 |
} |
1089 |
|
1090 |
bool |
1091 |
rxvt_fontset::realize_font (int i) |
1092 |
{ |
1093 |
if (fonts[i]->loaded) |
1094 |
return true; |
1095 |
|
1096 |
fonts[i]->loaded = true; |
1097 |
|
1098 |
if (!fonts[i]->load (base_prop)) |
1099 |
{ |
1100 |
fonts[i]->cs = CS_UNKNOWN; |
1101 |
return false; |
1102 |
} |
1103 |
|
1104 |
return true; |
1105 |
} |
1106 |
|
1107 |
bool |
1108 |
rxvt_fontset::populate (const char *desc) |
1109 |
{ |
1110 |
clear (); |
1111 |
|
1112 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1113 |
realize_font (0); |
1114 |
|
1115 |
add_fonts (desc); |
1116 |
|
1117 |
if (!base_id) |
1118 |
base_id = 1; |
1119 |
|
1120 |
// we currently need a base-font, no matter what |
1121 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1122 |
{ |
1123 |
puts ("unable to load specified font (s), falling back to 'fixed'\n"); |
1124 |
add_fonts ("fixed"); |
1125 |
base_id = fonts.size () - 1; |
1126 |
} |
1127 |
|
1128 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1129 |
return false; |
1130 |
|
1131 |
base_prop = fonts[base_id]->properties (); |
1132 |
|
1133 |
return true; |
1134 |
} |
1135 |
|
1136 |
int |
1137 |
rxvt_fontset::find_font (uint32_t unicode) |
1138 |
{ |
1139 |
for (unsigned int i = 0; i < fonts.size (); i++) |
1140 |
{ |
1141 |
rxvt_font *f = fonts[i]; |
1142 |
|
1143 |
if (!f->loaded) |
1144 |
{ |
1145 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1146 |
goto next_font; |
1147 |
|
1148 |
if (!realize_font (i)) |
1149 |
goto next_font; |
1150 |
} |
1151 |
|
1152 |
if (f->cs != CS_UNKNOWN && f->has_codepoint (unicode)) |
1153 |
return i; |
1154 |
|
1155 |
next_font: |
1156 |
if (i == fonts.size () - 1 && fallback->name) |
1157 |
{ |
1158 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1159 |
fallback++; |
1160 |
i = 0; |
1161 |
} |
1162 |
} |
1163 |
|
1164 |
return 0; /* we must return SOME font */ |
1165 |
} |
1166 |
|
1167 |
|
1168 |
|