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/*--------------------------------*-C-*---------------------------------*; |
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* File: defaultfont.C |
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*----------------------------------------------------------------------* |
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* Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com> |
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* - original version. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*---------------------------------------------------------------------*/ |
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|
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#include "../config.h" |
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#include "rxvt.h" |
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#include "defaultfont.h" |
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|
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#include <cstdlib> |
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|
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#define DISPLAY r->display->display |
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#define TGC r->TermWin.gc |
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|
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const struct rxvt_fallback_font { |
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codeset cs; |
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const char *name; |
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} fallback_fonts[] = { |
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{ CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" }, |
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{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" }, |
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{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-fcd8859-15" }, |
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|
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#if ENCODING_EU |
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// cyrillic |
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{ CS_KOI8_R, "-*-*-*-r-*--*-*-*-*-c-*-koi8-r" }, |
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{ CS_KOI8_U, "-*-*-*-r-*--*-*-*-*-c-*-koi8-u" }, |
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|
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{ CS_ISO8859_2, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-2" }, |
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{ CS_ISO8859_3, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-3" }, |
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{ CS_ISO8859_4, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-4" }, |
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{ CS_ISO8859_5, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-5" }, |
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{ CS_ISO8859_6, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-6" }, |
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{ CS_ISO8859_7, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-7" }, |
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{ CS_ISO8859_8, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-8" }, |
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{ CS_ISO8859_9, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-9" }, |
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{ CS_ISO8859_10, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-10" }, |
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{ CS_ISO8859_11, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-11" }, |
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{ CS_ISO8859_13, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-13" }, |
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{ CS_ISO8859_14, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-14" }, |
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{ CS_ISO8859_16, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-16" }, |
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#endif |
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|
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// japanese |
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#if ENCODING_JP || ENCODING_JP_EXT |
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# if XFT |
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// prefer xft for complex scripts |
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{ CS_UNICODE, "xft:Kochi Gothic:antialias=false" }, |
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# endif |
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{ CS_JIS0201_1976_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
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{ CS_JIS0208_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
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{ CS_JIS0212_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0212*-0" }, |
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#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, TGC, r->PixColors[color]); |
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XFillRectangle (d.display->display, d, TGC, x, y, w, h); |
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#endif |
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} |
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} |
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|
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#include "table/linedraw.h" |
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|
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struct rxvt_font_default : rxvt_font { |
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|
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rxvt_fontprop properties () |
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{ |
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rxvt_fontprop p; |
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|
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p.width = p.height = 1; |
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p.weight = rxvt_fontprop::medium; |
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p.slant = rxvt_fontprop::roman; |
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|
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return p; |
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} |
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|
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bool load (const rxvt_fontprop &prop) |
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{ |
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width = 1; height = 1; |
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ascent = 1; descent = 0; |
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|
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set_name (strdup ("built-in pseudofont")); |
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|
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return true; |
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} |
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|
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bool has_codepoint (unicode_t unicode) |
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{ |
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if (unicode <= 0x001f) |
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return true; |
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|
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if (unicode >= 0x0080 && unicode <= 0x009f) |
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return true; |
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|
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if (unicode >= 0x2500 && unicode <= 0x259f |
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&& linedraw_offs[unicode - 0x2500] & 15) |
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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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return; |
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clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
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|
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XSetForeground (d.display->display, TGC, r->PixColors[fg]); |
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|
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while (len--) |
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{ |
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#if ENABLE_COMBINING |
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compose_char *cc; |
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#endif |
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text_t t = *text++; |
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|
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int W = r->TermWin.fwidth , w = (W - 1) / 2; |
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int H = r->TermWin.fheight, h = (H - 1) / 2; |
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int x0 = x, x1 = x + w, x2 = x + r->TermWin.fwidth ; |
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int y0 = y, y1 = y + h, y2 = y + r->TermWin.fheight; |
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|
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if (0x2500 <= t && t <= 0x259f |
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&& linedraw_offs[t - 0x2500] & 15) |
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{ |
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uint16_t offs = linedraw_offs[t - 0x2500]; |
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uint32_t *a = linedraw_command + (offs >> 4); |
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uint32_t *b = a + (offs & 15); |
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|
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int x_[16]; |
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int y_[16]; |
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|
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for (int i = 0; i <= 8; i++) |
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{ |
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x_[i] = x + ((W-1) * i + (i*7/8)) / 8; |
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y_[i] = y + ((H-1) * i + (i*7/8)) / 8; |
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} |
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|
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x_[10] = x + (W - 1) / 2; x_[9] = x_[10] - 1; x_[11] = x_[10] + 1; |
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y_[10] = y + (H - 1) / 2; y_[9] = y_[10] - 1; y_[11] = y_[10] + 1; |
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|
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XGCValues gcv; |
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|
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gcv.cap_style = CapButt; |
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gcv.line_width = 0; |
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XChangeGC (d.display->display, TGC, GCLineWidth | GCCapStyle, &gcv); |
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|
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while (a < b) |
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{ |
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uint32_t command = *a++; |
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|
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int op = (command >> 24) & 255; |
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int a = (command >> 20) & 15; |
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int b = (command >> 16) & 15; |
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int x1 = x_[(command >> 12) & 15]; |
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int y1 = y_[(command >> 8) & 15]; |
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int x2 = x_[(command >> 4) & 15]; |
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int y2 = y_[(command >> 0) & 15]; |
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|
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switch (op) |
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{ |
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case 0: // line |
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XDrawLine (d.display->display, d, TGC, x1, y1, x2, y2); |
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break; |
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|
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case 1: // rectangle, possibly stippled |
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if (a) |
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{ |
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static char bm[] = { 0,0 , 3,1 , 1,2 , 1,0 }; |
328 |
|
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gcv.fill_style = FillStippled; |
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gcv.stipple = XCreateBitmapFromData (d.display->display, d, bm + a * 2, 2, 2); |
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gcv.ts_x_origin = x; |
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gcv.ts_y_origin = y; |
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|
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XChangeGC (d.display->display, TGC, |
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GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin, |
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&gcv); |
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} |
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|
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|
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XFillRectangle (d.display->display, d, TGC, x1, y1, x2 - x1 + 1, y2 - y1 + 1); |
341 |
|
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if (a) |
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{ |
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XFreePixmap (d.display->display, gcv.stipple); |
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gcv.stipple = 0; |
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gcv.fill_style = FillSolid; |
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XChangeGC (d.display->display, TGC, GCFillStyle, &gcv); |
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} |
349 |
|
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break; |
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case 2: // arc |
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XDrawArc (d.display->display, d, TGC, |
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x1 - W/2, y1 - H/2, W-1, H-1, |
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(a - 1) * 90*64, (b - 1) * 90*64); |
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break; |
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} |
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} |
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} |
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#if ENABLE_COMBINING |
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else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) |
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{ |
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rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)]; |
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f1->draw (d, x, y, &(t = cc->c1), 1, fg, bg); |
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if (cc->c2 != NOCHAR) |
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{ |
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// prefer font of first character, for no good reasons |
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rxvt_font *f2 = f1->has_codepoint (cc->c2) |
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? f1 |
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: (*fs)[fs->find_font (cc->c2)]; |
370 |
|
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f2->draw (d, x, y, &(t = cc->c2), 1, fg, -1); |
372 |
} |
373 |
} |
374 |
#endif |
375 |
else |
376 |
switch (t) |
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{ |
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case ZERO_WIDTH_CHAR: |
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break; |
380 |
|
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default: |
382 |
int w = 0; |
383 |
while (len > 0 && *text == NOCHAR) |
384 |
{ |
385 |
++text; |
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--len; |
387 |
w += r->TermWin.fwidth; |
388 |
} |
389 |
|
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XDrawRectangle (d.display->display, d, TGC, x + 2, y + 2, |
391 |
w + r->TermWin.fwidth - 4, r->TermWin.fheight - 4); |
392 |
x += w; |
393 |
} |
394 |
|
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x += r->TermWin.fwidth; |
396 |
} |
397 |
} |
398 |
|
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///////////////////////////////////////////////////////////////////////////// |
400 |
|
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struct rxvt_font_x11 : rxvt_font { |
402 |
rxvt_font_x11 () { f = 0; } |
403 |
|
404 |
void clear (); |
405 |
|
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rxvt_fontprop properties (); |
407 |
|
408 |
bool load (const rxvt_fontprop &prop); |
409 |
|
410 |
bool has_codepoint (unicode_t unicode); |
411 |
|
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void draw (rxvt_drawable &d, int x, int y, |
413 |
const text_t *text, int len, |
414 |
int fg, int bg); |
415 |
|
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XFontStruct *f; |
417 |
codeset cs; |
418 |
bool enc2b, encm; |
419 |
|
420 |
const char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
421 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
422 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
423 |
bool set_properties (rxvt_fontprop &p, const char *name); |
424 |
}; |
425 |
|
426 |
const char * |
427 |
rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
428 |
{ |
429 |
unsigned long value; |
430 |
|
431 |
if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
432 |
return XGetAtomName (DISPLAY, value); |
433 |
else |
434 |
return repl; |
435 |
} |
436 |
|
437 |
rxvt_fontprop |
438 |
rxvt_font_x11::properties () |
439 |
{ |
440 |
rxvt_fontprop p; |
441 |
set_properties (p, f); |
442 |
return p; |
443 |
} |
444 |
|
445 |
bool |
446 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
447 |
{ |
448 |
p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
449 |
p.height = height; |
450 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
451 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
452 |
|
453 |
return true; |
454 |
} |
455 |
|
456 |
bool |
457 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
458 |
{ |
459 |
const char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
460 |
const char *slant = get_property (f, "SLANT", "r"); |
461 |
|
462 |
unsigned long height; |
463 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height)) |
464 |
return false; |
465 |
|
466 |
unsigned long avgwidth; |
467 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth)) |
468 |
avgwidth = 0; |
469 |
|
470 |
return set_properties (p, height, weight, slant, avgwidth); |
471 |
} |
472 |
|
473 |
bool |
474 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
475 |
{ |
476 |
int slashes = 0; |
477 |
const char *comp[13]; |
478 |
|
479 |
for (const char *c = name; *c; c++) |
480 |
if (*c == '-') |
481 |
{ |
482 |
comp[slashes++] = c + 1; |
483 |
if (slashes >= 13) |
484 |
break; |
485 |
} |
486 |
|
487 |
/* can we short-circuit the costly XLoadQueryFont? */ |
488 |
if (slashes >= 13 |
489 |
&& (*comp[ 6] >= '1' && *comp[ 6] <= '9') |
490 |
&& (*comp[11] >= '0' && *comp[11] <= '9')) |
491 |
return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11])); |
492 |
|
493 |
XFontStruct *f = XLoadQueryFont (DISPLAY, name); |
494 |
|
495 |
if (f) |
496 |
{ |
497 |
// the font should really exist now. if not, we have a problem |
498 |
// (e.g. if the user did xset fp rehash just when we were searching fonts). |
499 |
// in that case, just return garbage. |
500 |
bool ret = set_properties (p, f); |
501 |
XFreeFont (DISPLAY, f); |
502 |
return ret; |
503 |
} |
504 |
else |
505 |
return false; |
506 |
} |
507 |
|
508 |
// fix the size of scalable fonts |
509 |
static void |
510 |
fix_scalable (char *buf, const char *name, const rxvt_fontprop &prop) |
511 |
{ |
512 |
int slashes = 0; |
513 |
const char *size; |
514 |
|
515 |
for (const char *c = name; *c; c++) |
516 |
if (*c == '-') |
517 |
{ |
518 |
if (slashes == 6) |
519 |
size = c + 1; |
520 |
|
521 |
if (++slashes >= 13) |
522 |
break; |
523 |
} |
524 |
|
525 |
if (slashes >= 13 && size[0] == '0') |
526 |
{ |
527 |
strncpy (buf, name, size - name); |
528 |
buf += size - name; |
529 |
buf += sprintf (buf, "%d", prop.height); |
530 |
strcpy (buf, size + 1); |
531 |
} |
532 |
else |
533 |
strcpy (buf, name); |
534 |
} |
535 |
|
536 |
bool |
537 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
538 |
{ |
539 |
clear (); |
540 |
|
541 |
char **list; |
542 |
int count; |
543 |
list = XListFonts (DISPLAY, name, 512, &count); |
544 |
set_name (0); |
545 |
|
546 |
if (!list) |
547 |
return false; |
548 |
|
549 |
int bestdiff = 0x7fffffff; |
550 |
for (int i = 0; i < count; i++) |
551 |
{ |
552 |
rxvt_fontprop p; |
553 |
char fname[1024]; |
554 |
fix_scalable (fname, list[i], prop); |
555 |
|
556 |
if (!set_properties (p, fname)) |
557 |
continue; |
558 |
|
559 |
if (p.height > prop.height) // weed out too large fonts |
560 |
continue; |
561 |
|
562 |
int diff = (prop.height - p.height) * 32 |
563 |
+ abs (prop.weight - p.weight) |
564 |
+ abs (prop.slant - p.slant ); |
565 |
|
566 |
if (!name // compare against best found so far |
567 |
|| diff < bestdiff) |
568 |
{ |
569 |
set_name (strdup (fname)); |
570 |
bestdiff = diff; |
571 |
} |
572 |
} |
573 |
|
574 |
XFreeFontNames (list); |
575 |
|
576 |
if (!name) |
577 |
return false; |
578 |
|
579 |
f = XLoadQueryFont (DISPLAY, name); |
580 |
|
581 |
if (!f) |
582 |
return false; |
583 |
|
584 |
const char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
585 |
const char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
586 |
|
587 |
if (registry && encoding) |
588 |
{ |
589 |
char charset[64]; |
590 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
591 |
|
592 |
cs = codeset_from_name (charset); |
593 |
} |
594 |
else |
595 |
{ |
596 |
const char *charset = get_property (f, "FONT", 0); |
597 |
|
598 |
if (!charset) |
599 |
charset = name; |
600 |
|
601 |
int count = 13; |
602 |
while (*charset) |
603 |
if (*charset++ == '-' && !--count) |
604 |
break; |
605 |
|
606 |
cs = codeset_from_name (charset); |
607 |
} |
608 |
|
609 |
if (cs == CS_UNICODE) |
610 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
611 |
|
612 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
613 |
enc2b = encm || f->max_char_or_byte2 > 255; |
614 |
|
615 |
ascent = f->ascent; |
616 |
descent = f->descent; |
617 |
height = ascent + descent; |
618 |
|
619 |
slow = false; |
620 |
|
621 |
if (f->min_bounds.width == f->max_bounds.width) |
622 |
width = f->min_bounds.width; |
623 |
else if (f->per_char == NULL) |
624 |
width = f->max_bounds.width; |
625 |
else |
626 |
{ |
627 |
slow = true; |
628 |
|
629 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
630 |
|
631 |
if (encm) |
632 |
N += (f->max_byte1 - f->min_byte1) |
633 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
634 |
|
635 |
while (N) |
636 |
{ |
637 |
if (f->per_char[N].width > width) |
638 |
width = f->per_char[N].width; |
639 |
|
640 |
--N; |
641 |
} |
642 |
} |
643 |
|
644 |
if (cs == CS_UNKNOWN) |
645 |
{ |
646 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
647 |
|
648 |
clear (); |
649 |
|
650 |
return false; |
651 |
} |
652 |
|
653 |
return true; |
654 |
} |
655 |
|
656 |
void |
657 |
rxvt_font_x11::clear () |
658 |
{ |
659 |
if (f) |
660 |
{ |
661 |
XFreeFont (DISPLAY, f); |
662 |
f = 0; |
663 |
} |
664 |
} |
665 |
|
666 |
bool |
667 |
rxvt_font_x11::has_codepoint (unicode_t unicode) |
668 |
{ |
669 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
670 |
|
671 |
if (ch == NOCHAR) |
672 |
return false; |
673 |
|
674 |
/* check wether the character exists in _this_ font. horrible. */ |
675 |
XCharStruct *xcs; |
676 |
|
677 |
if (encm) |
678 |
{ |
679 |
unsigned char byte1 = ch >> 8; |
680 |
unsigned char byte2 = ch & 255; |
681 |
|
682 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
683 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
684 |
return false; |
685 |
|
686 |
if (!f->per_char) |
687 |
return true; |
688 |
|
689 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
690 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
691 |
|
692 |
xcs = f->per_char + N; |
693 |
} |
694 |
else |
695 |
{ |
696 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
697 |
return false; |
698 |
|
699 |
if (!f->per_char) |
700 |
return true; |
701 |
|
702 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
703 |
} |
704 |
|
705 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
706 |
&& xcs->ascent == 0 && xcs->descent == 0) |
707 |
return false; |
708 |
|
709 |
return true; |
710 |
} |
711 |
|
712 |
void |
713 |
rxvt_font_x11::draw (rxvt_drawable &d, int x, int y, |
714 |
const text_t *text, int len, |
715 |
int fg, int bg) |
716 |
{ |
717 |
// this looks like a mess /. |
718 |
// and it is a mess /. |
719 |
// yet we are trying to be perfect /. |
720 |
// but the result still isn't perfect /. |
721 |
|
722 |
bool slow = this->slow |
723 |
|| width != r->TermWin.fwidth |
724 |
|| height != r->TermWin.fheight; |
725 |
|
726 |
int base = r->TermWin.fbase; |
727 |
|
728 |
XGCValues v; |
729 |
v.foreground = r->PixColors[fg]; |
730 |
v.background = r->PixColors[bg]; |
731 |
v.font = f->fid; |
732 |
|
733 |
if (enc2b) |
734 |
{ |
735 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
736 |
|
737 |
if (bg == Color_bg && !slow) |
738 |
{ |
739 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
740 |
XDrawImageString16 (d.display->display, d, TGC, x, y + base, xc, len); |
741 |
} |
742 |
else |
743 |
{ |
744 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
745 |
|
746 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
747 |
|
748 |
if (slow) |
749 |
{ |
750 |
do |
751 |
{ |
752 |
if (xc->byte1 || xc->byte2) |
753 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, 1); |
754 |
|
755 |
x += r->TermWin.fwidth; |
756 |
xc++; len--; |
757 |
} |
758 |
while (len); |
759 |
} |
760 |
else |
761 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, len); |
762 |
} |
763 |
} |
764 |
else |
765 |
{ |
766 |
const char *xc = enc_char (text, len, cs, slow); |
767 |
|
768 |
if (bg == Color_bg && !slow) |
769 |
{ |
770 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
771 |
XDrawImageString (d.display->display, d, TGC, x, y + base, xc, len); |
772 |
} |
773 |
else |
774 |
{ |
775 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
776 |
|
777 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
778 |
|
779 |
if (slow) |
780 |
{ |
781 |
do |
782 |
{ |
783 |
if (*xc) |
784 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, 1); |
785 |
|
786 |
x += r->TermWin.fwidth; |
787 |
xc++; len--; |
788 |
} |
789 |
while (len); |
790 |
} |
791 |
else |
792 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, len); |
793 |
} |
794 |
} |
795 |
} |
796 |
|
797 |
///////////////////////////////////////////////////////////////////////////// |
798 |
|
799 |
#if XFT |
800 |
#if 0 |
801 |
#define UNIBITS 21 |
802 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
803 |
#define SWATHBITS 8 |
804 |
#endif |
805 |
|
806 |
struct rxvt_font_xft : rxvt_font { |
807 |
rxvt_font_xft () { f = 0; } |
808 |
|
809 |
void clear (); |
810 |
|
811 |
rxvt_fontprop properties (); |
812 |
|
813 |
bool load (const rxvt_fontprop &prop); |
814 |
|
815 |
void draw (rxvt_drawable &d, int x, int y, |
816 |
const text_t *text, int len, |
817 |
int fg, int bg); |
818 |
|
819 |
bool has_codepoint (unicode_t unicode); |
820 |
|
821 |
protected: |
822 |
XftFont *f; |
823 |
}; |
824 |
|
825 |
void |
826 |
rxvt_font_xft::clear () |
827 |
{ |
828 |
if (f) |
829 |
{ |
830 |
XftFontClose (DISPLAY, f); |
831 |
f = 0; |
832 |
} |
833 |
} |
834 |
|
835 |
rxvt_fontprop |
836 |
rxvt_font_xft::properties () |
837 |
{ |
838 |
rxvt_fontprop p; |
839 |
|
840 |
FT_Face face = XftLockFace (f); |
841 |
|
842 |
p.width = width; p.height = height; |
843 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
844 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC ? rxvt_fontprop::italic : rxvt_fontprop::roman; |
845 |
|
846 |
XftUnlockFace (f); |
847 |
|
848 |
return p; |
849 |
} |
850 |
|
851 |
bool |
852 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
853 |
{ |
854 |
#if 0 |
855 |
for (int i = 0; i < SWATHCOUNT; i++) |
856 |
cvr[i] = 0; |
857 |
#endif |
858 |
|
859 |
clear (); |
860 |
|
861 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
862 |
|
863 |
if (!p) |
864 |
return false; |
865 |
|
866 |
FcValue v; |
867 |
|
868 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
869 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
870 |
|
871 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
872 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
873 |
|
874 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
875 |
// clip width, we can't do better, or can we? |
876 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
877 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop.width); |
878 |
#endif |
879 |
|
880 |
//FcPatternAddBool (p, FC_MINSPACE, 1); |
881 |
|
882 |
XftResult result; |
883 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
884 |
|
885 |
FcPatternDestroy (p); |
886 |
|
887 |
if (!match) |
888 |
return false; |
889 |
|
890 |
f = XftFontOpenPattern (DISPLAY, match); |
891 |
|
892 |
if (!f) |
893 |
{ |
894 |
FcPatternDestroy (match); |
895 |
return false; |
896 |
} |
897 |
|
898 |
FT_Face face = XftLockFace (f); |
899 |
|
900 |
slow = !FT_IS_FIXED_WIDTH (face); |
901 |
|
902 |
int ftheight = 0; |
903 |
|
904 |
for (;;) |
905 |
{ |
906 |
XGlyphInfo g1, g2; |
907 |
FcChar8 c; |
908 |
|
909 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
910 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
911 |
|
912 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
913 |
slow = true; |
914 |
|
915 |
width = g2.xOff; |
916 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
917 |
descent = (-face->size->metrics.descender + 63) >> 6; |
918 |
height = ascent + descent; |
919 |
|
920 |
if (height <= prop.height || !prop.height) |
921 |
break; |
922 |
|
923 |
if (ftheight) |
924 |
{ |
925 |
// take smaller steps near the end |
926 |
if (height > prop.height + 1) ftheight++; |
927 |
if (height > prop.height + 2) ftheight++; |
928 |
if (height > prop.height + 3) ftheight++; |
929 |
|
930 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
931 |
} |
932 |
else |
933 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
934 |
} |
935 |
|
936 |
XftUnlockFace (f); |
937 |
|
938 |
return true; |
939 |
} |
940 |
|
941 |
bool |
942 |
rxvt_font_xft::has_codepoint (unicode_t unicode) |
943 |
{ |
944 |
return XftCharExists (DISPLAY, f, unicode); |
945 |
} |
946 |
|
947 |
void |
948 |
rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, |
949 |
const text_t *text, int len, |
950 |
int fg, int bg) |
951 |
{ |
952 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
953 |
|
954 |
if (!slow && width == r->TermWin.fwidth && 0) |
955 |
{ |
956 |
if (sizeof (text_t) == sizeof (FcChar16)) |
957 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
958 |
else |
959 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
960 |
} |
961 |
else |
962 |
{ |
963 |
while (len) |
964 |
{ |
965 |
if (*text != NOCHAR && *text != ' ') |
966 |
{ |
967 |
int fwidth = r->TermWin.fwidth; |
968 |
if (len >= 2 && text[1] == NOCHAR) |
969 |
fwidth *= 2; |
970 |
|
971 |
XGlyphInfo extents; |
972 |
if (sizeof (text_t) == sizeof (FcChar16)) |
973 |
{ |
974 |
XftTextExtents16 (d.display->display, f, (const FcChar16 *)text, 1, &extents); |
975 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
976 |
y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
977 |
} |
978 |
else |
979 |
{ |
980 |
XGlyphInfo extents; |
981 |
XftTextExtents32 (d.display->display, f, (const FcChar32 *)text, 1, &extents); |
982 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
983 |
y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
984 |
} |
985 |
} |
986 |
|
987 |
x += r->TermWin.fwidth; |
988 |
text++; |
989 |
len--; |
990 |
} |
991 |
} |
992 |
} |
993 |
#endif |
994 |
|
995 |
///////////////////////////////////////////////////////////////////////////// |
996 |
|
997 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
998 |
: r (r) |
999 |
{ |
1000 |
clear (); |
1001 |
} |
1002 |
|
1003 |
rxvt_fontset::~rxvt_fontset () |
1004 |
{ |
1005 |
clear (); |
1006 |
} |
1007 |
|
1008 |
void |
1009 |
rxvt_fontset::clear () |
1010 |
{ |
1011 |
for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) |
1012 |
FONT_UNREF (*i); |
1013 |
|
1014 |
fonts.clear (); |
1015 |
base_id = 0; |
1016 |
base_prop.height = 0x7fffffff; |
1017 |
base_prop.weight = rxvt_fontprop::medium; |
1018 |
base_prop.slant = rxvt_fontprop::roman; |
1019 |
|
1020 |
fallback = fallback_fonts; |
1021 |
} |
1022 |
|
1023 |
rxvt_font * |
1024 |
rxvt_fontset::new_font (const char *name, codeset cs) |
1025 |
{ |
1026 |
rxvt_font *f; |
1027 |
|
1028 |
if (!name || !*name) |
1029 |
{ |
1030 |
name = ""; |
1031 |
f = new rxvt_font_default; |
1032 |
} |
1033 |
#if XFT |
1034 |
else if (!strncmp (name, "xft:", 4)) |
1035 |
{ |
1036 |
name += 4; |
1037 |
f = new rxvt_font_xft; |
1038 |
} |
1039 |
#endif |
1040 |
else if (!strncmp (name, "x:", 2)) |
1041 |
{ |
1042 |
name += 2; |
1043 |
f = new rxvt_font_x11; |
1044 |
} |
1045 |
else |
1046 |
f = new rxvt_font_x11; |
1047 |
|
1048 |
f->fs = this; |
1049 |
f->set_term (r); |
1050 |
f->set_name (strdup (name)); |
1051 |
|
1052 |
f->cs = cs; |
1053 |
f->loaded = false; |
1054 |
|
1055 |
return f; |
1056 |
} |
1057 |
|
1058 |
///////////////////////////////////////////////////////////////////////////// |
1059 |
|
1060 |
void |
1061 |
rxvt_fontset::add_fonts (const char *desc) |
1062 |
{ |
1063 |
if (desc) |
1064 |
{ |
1065 |
char buf[512]; |
1066 |
const char *end; |
1067 |
|
1068 |
do |
1069 |
{ |
1070 |
while (*desc <= ' ') desc++; |
1071 |
|
1072 |
if (*desc == '[') |
1073 |
{ |
1074 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
1075 |
|
1076 |
//const char *extra = desc++; // not yet used |
1077 |
|
1078 |
desc = strchr (desc, ']'); |
1079 |
|
1080 |
if (!desc) |
1081 |
{ |
1082 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
1083 |
break; |
1084 |
} |
1085 |
|
1086 |
desc++; |
1087 |
while (*desc <= ' ') desc++; |
1088 |
} |
1089 |
|
1090 |
end = strchr (desc, ','); |
1091 |
if (!end) |
1092 |
end = desc + strlen (desc); |
1093 |
|
1094 |
if (end - desc < 511) |
1095 |
{ |
1096 |
strncpy (buf, desc, end - desc); |
1097 |
buf[end - desc] = 0; |
1098 |
|
1099 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
1100 |
} |
1101 |
|
1102 |
desc = end + 1; |
1103 |
} |
1104 |
while (*end); |
1105 |
} |
1106 |
} |
1107 |
|
1108 |
bool |
1109 |
rxvt_fontset::realize_font (int i) |
1110 |
{ |
1111 |
if (fonts[i]->loaded) |
1112 |
return true; |
1113 |
|
1114 |
fonts[i]->loaded = true; |
1115 |
|
1116 |
if (!fonts[i]->load (base_prop)) |
1117 |
{ |
1118 |
fonts[i]->cs = CS_UNKNOWN; |
1119 |
return false; |
1120 |
} |
1121 |
|
1122 |
return true; |
1123 |
} |
1124 |
|
1125 |
bool |
1126 |
rxvt_fontset::populate (const char *desc) |
1127 |
{ |
1128 |
clear (); |
1129 |
|
1130 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1131 |
realize_font (0); |
1132 |
|
1133 |
add_fonts (desc); |
1134 |
|
1135 |
if (!base_id) |
1136 |
base_id = 1; |
1137 |
|
1138 |
// we currently need a base-font, no matter what |
1139 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1140 |
{ |
1141 |
puts ("unable to load specified font (s), falling back to 'fixed'\n"); |
1142 |
add_fonts ("fixed"); |
1143 |
base_id = fonts.size () - 1; |
1144 |
} |
1145 |
|
1146 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1147 |
return false; |
1148 |
|
1149 |
base_prop = fonts[base_id]->properties (); |
1150 |
|
1151 |
return true; |
1152 |
} |
1153 |
|
1154 |
int |
1155 |
rxvt_fontset::find_font (unicode_t unicode) |
1156 |
{ |
1157 |
for (unsigned int i = 0; i < fonts.size (); i++) |
1158 |
{ |
1159 |
rxvt_font *f = fonts[i]; |
1160 |
|
1161 |
if (!f->loaded) |
1162 |
{ |
1163 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1164 |
goto next_font; |
1165 |
|
1166 |
if (!realize_font (i)) |
1167 |
goto next_font; |
1168 |
} |
1169 |
|
1170 |
if (f->cs != CS_UNKNOWN && f->has_codepoint (unicode)) |
1171 |
return i; |
1172 |
|
1173 |
next_font: |
1174 |
if (i == fonts.size () - 1 && fallback->name) |
1175 |
{ |
1176 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1177 |
fallback++; |
1178 |
i = 0; |
1179 |
} |
1180 |
} |
1181 |
|
1182 |
return 0; /* we must return SOME font */ |
1183 |
} |
1184 |
|
1185 |
|
1186 |
|