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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 "rxvtfont.h" |
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|
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#include <cstdlib> |
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|
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#define DISPLAY r->display->display |
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#define TGC r->TermWin.gc |
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|
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const struct rxvt_fallback_font { |
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codeset cs; |
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const char *name; |
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} fallback_fonts[] = { |
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{ CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" }, |
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{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" }, |
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{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-fcd8859-15" }, |
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|
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#if ENCODING_EU |
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// cyrillic |
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{ CS_KOI8_R, "-*-*-*-r-*--*-*-*-*-c-*-koi8-r" }, |
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{ CS_KOI8_U, "-*-*-*-r-*--*-*-*-*-c-*-koi8-u" }, |
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|
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{ CS_ISO8859_2, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-2" }, |
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{ CS_ISO8859_3, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-3" }, |
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{ CS_ISO8859_4, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-4" }, |
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{ CS_ISO8859_5, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-5" }, |
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{ CS_ISO8859_6, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-6" }, |
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{ CS_ISO8859_7, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-7" }, |
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{ CS_ISO8859_8, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-8" }, |
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{ CS_ISO8859_9, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-9" }, |
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{ CS_ISO8859_10, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-10" }, |
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{ CS_ISO8859_11, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-11" }, |
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{ CS_ISO8859_13, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-13" }, |
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{ CS_ISO8859_14, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-14" }, |
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{ CS_ISO8859_16, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-16" }, |
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#endif |
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|
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// japanese |
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#if ENCODING_JP || ENCODING_JP_EXT |
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# if XFT |
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// prefer xft for complex scripts |
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{ CS_UNICODE, "xft:Kochi Gothic:antialias=false" }, |
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# endif |
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{ CS_JIS0201_1976_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
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{ CS_JIS0208_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
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{ CS_JIS0212_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0212*-0" }, |
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{ CS_JIS0201_1976_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
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{ CS_JIS0208_1990_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
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{ CS_JIS0212_1990_0, "-*-*-*-r-*--*-*-*-*-c-*-jisx0212*-0" }, |
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#endif |
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|
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#if ENCODING_CN || ENCODING_CN_EXT |
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# if XFT |
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{ CS_BIG5_EXT, "xft:AR PL Mingti2L Big5" }, |
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{ CS_BIG5_EXT, "xft:AR PL KaitiM Big5" }, |
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{ CS_GB2312_1980_0, "xft:AR PL KaitiM GB" }, |
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{ CS_GB2312_1980_0, "xft:AR PL SungtiL GB" }, |
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# endif |
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{ CS_BIG5, "-*-*-*-*-*-*-*-*-*-*-c-*-big5-0" }, |
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{ CS_BIG5_PLUS, "-*-*-*-*-*-*-*-*-*-*-c-*-big5p-0" }, |
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{ CS_BIG5_EXT, "-*-*-*-*-*-*-*-*-*-*-c-*-big5.eten-0" }, |
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{ CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-gb2312*-0" }, |
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{ CS_CNS11643_1992_1, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-1" }, |
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{ CS_CNS11643_1992_2, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-2" }, |
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{ CS_CNS11643_1992_3, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-3" }, |
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{ CS_CNS11643_1992_4, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-4" }, |
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{ CS_CNS11643_1992_5, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-5" }, |
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{ CS_CNS11643_1992_6, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-6" }, |
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{ CS_CNS11643_1992_7, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-7" }, |
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{ CS_CNS11643_1992_F, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643*-f" }, |
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#endif |
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|
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#if XFT |
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{ CS_UNICODE, "xft:Andale Mono" }, |
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{ CS_UNICODE, "xft:Arial Unicode MS" }, |
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#endif |
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{ CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
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#if XFT |
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// FreeMono is usually uglier than x fonts, so try last only. |
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//{ CS_UNICODE, "xft:FreeMono" }, |
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#endif |
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|
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{ CS_UNKNOWN, 0 } |
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}; |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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#if XFT |
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rxvt_drawable::~rxvt_drawable () |
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{ |
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if (xftdrawable) |
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XftDrawDestroy (xftdrawable); |
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} |
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|
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rxvt_drawable::operator XftDraw *() |
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{ |
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if (!xftdrawable) |
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xftdrawable = XftDrawCreate (display->display, drawable, display->visual, display->cmap); |
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|
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return xftdrawable; |
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} |
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#endif |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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static void *enc_buf; |
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static uint32_t enc_len; |
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|
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static inline void * |
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get_enc_buf (uint32_t len) |
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{ |
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if (len > enc_len) |
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{ |
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free (enc_buf); |
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enc_buf = malloc (len); |
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enc_len = len; |
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} |
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|
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return enc_buf; |
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} |
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|
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static const char * |
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enc_char (const text_t *text, uint32_t len, codeset cs, bool &zero) |
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{ |
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uint8_t *buf = (uint8_t *)get_enc_buf (len); |
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|
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while (len--) |
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{ |
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uint32_t c = FROM_UNICODE (cs, *text++); |
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|
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if (c == NOCHAR) |
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{ |
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c = 0; |
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zero = true; |
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} |
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|
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*buf++ = c; |
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} |
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|
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return (const char *)enc_buf; |
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} |
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|
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static const XChar2b * |
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enc_xchar2b (const text_t *text, uint32_t len, codeset cs, bool &zero) |
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{ |
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XChar2b *buf = (XChar2b *)get_enc_buf (len * sizeof (XChar2b)); |
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|
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while (len--) |
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{ |
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uint32_t c = FROM_UNICODE (cs, *text++); |
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|
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if (c == NOCHAR) |
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{ |
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c = 0; |
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zero = true; |
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} |
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|
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buf->byte1 = c >> 8; |
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buf->byte2 = c; |
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buf++; |
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} |
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|
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return (XChar2b *)enc_buf; |
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} |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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void |
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rxvt_font::clear_rect (rxvt_drawable &d, int x, int y, int w, int h, int color) |
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{ |
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if (color == Color_bg) |
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XClearArea (d.display->display, d, x, y, w, h, FALSE); |
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else if (color >= 0) |
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{ |
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#if XFT |
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XftDrawRect (d, &r->pix_colors[color].c, x, y, w, h); |
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#else |
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XSetForeground (d.display->display, TGC, r->pix_colors[color]); |
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XFillRectangle (d.display->display, d, TGC, x, y, w, h); |
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#endif |
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} |
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} |
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|
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#include "table/linedraw.h" |
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|
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struct rxvt_font_default : rxvt_font { |
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|
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rxvt_fontprop properties () |
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{ |
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rxvt_fontprop p; |
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|
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p.width = p.height = 1; |
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p.weight = rxvt_fontprop::medium; |
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p.slant = rxvt_fontprop::roman; |
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|
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return p; |
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} |
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|
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bool load (const rxvt_fontprop &prop) |
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{ |
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width = 1; height = 1; |
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ascent = 1; descent = 0; |
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|
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set_name (strdup ("built-in pseudofont")); |
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|
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return true; |
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} |
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|
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bool has_codepoint (unicode_t unicode) |
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{ |
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if (unicode <= 0x001f) |
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return true; |
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|
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if (unicode <= 0x007f) |
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return false; |
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|
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if (unicode <= 0x009f) |
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return true; |
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|
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if (unicode >= 0x2500 && unicode <= 0x259f) |
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return true; |
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|
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if (IS_COMPOSE (unicode)) |
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return true; |
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|
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switch (unicode) |
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{ |
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case ZERO_WIDTH_CHAR: |
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return true; |
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} |
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|
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return false; |
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} |
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|
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void draw (rxvt_drawable &d, int x, int y, |
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const text_t *text, int len, |
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int fg, int bg); |
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}; |
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|
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void |
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rxvt_font_default::draw (rxvt_drawable &d, int x, int y, |
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const text_t *text, int len, |
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int fg, int bg) |
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{ |
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clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
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|
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XSetForeground (d.display->display, TGC, r->pix_colors[fg]); |
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|
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while (len--) |
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{ |
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#if ENABLE_COMBINING |
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compose_char *cc; |
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#endif |
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text_t t = *text++; |
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|
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if (0x2500 <= t && t <= 0x259f) |
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{ |
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uint16_t offs = linedraw_offs[t - 0x2500]; |
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uint32_t *a = linedraw_command + (offs >> 4); |
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uint32_t *b = a + (offs & 15); |
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|
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int W = r->TermWin.fwidth; |
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int H = r->TermWin.fheight; |
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|
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int x_[16]; |
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int y_[16]; |
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|
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for (int i = 0; i <= 8; i++) |
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{ |
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x_[i] = x + ((W-1) * i + (i*7/8)) / 8; |
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y_[i] = y + ((H-1) * i + (i*7/8)) / 8; |
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} |
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|
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x_[10] = x + (W - 1) / 2; x_[9] = x_[10] - 1; x_[11] = x_[10] + 1; |
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y_[10] = y + (H - 1) / 2; y_[9] = y_[10] - 1; y_[11] = y_[10] + 1; |
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|
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XGCValues gcv; |
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|
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gcv.cap_style = CapButt; |
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gcv.line_width = 0; |
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XChangeGC (d.display->display, TGC, GCLineWidth | GCCapStyle, &gcv); |
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|
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while (a < b) |
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{ |
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uint32_t command = *a++; |
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|
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int op = (command >> 24) & 255; |
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int a = (command >> 20) & 15; |
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int b = (command >> 16) & 15; |
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int x1 = x_[(command >> 12) & 15]; |
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int y1 = y_[(command >> 8) & 15]; |
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int x2 = x_[(command >> 4) & 15]; |
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int y2 = y_[(command >> 0) & 15]; |
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|
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switch (op) |
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{ |
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case 0: // line |
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XDrawLine (d.display->display, d, TGC, x1, y1, x2, y2); |
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break; |
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|
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case 1: // rectangle, possibly stippled |
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if (a) |
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{ |
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static char bm[] = { 0,0 , 3,1 , 1,2 , 1,0 }; |
329 |
|
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gcv.fill_style = FillStippled; |
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gcv.stipple = XCreateBitmapFromData (d.display->display, d, bm + a * 2, 2, 2); |
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gcv.ts_x_origin = x; |
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gcv.ts_y_origin = y; |
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|
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XChangeGC (d.display->display, TGC, |
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GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin, |
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&gcv); |
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} |
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|
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XFillRectangle (d.display->display, d, TGC, x1, y1, x2 - x1 + 1, y2 - y1 + 1); |
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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} |
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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)]; |
369 |
|
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f2->draw (d, x, y, &(t = cc->c2), 1, fg, -1); |
371 |
} |
372 |
} |
373 |
#endif |
374 |
else |
375 |
switch (t) |
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{ |
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case ZERO_WIDTH_CHAR: |
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break; |
379 |
|
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default: |
381 |
int w = 0; |
382 |
while (len > 0 && *text == NOCHAR) |
383 |
{ |
384 |
++text; |
385 |
--len; |
386 |
w += r->TermWin.fwidth; |
387 |
} |
388 |
|
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XDrawRectangle (d.display->display, d, TGC, x + 2, y + 2, |
390 |
w + r->TermWin.fwidth - 4, r->TermWin.fheight - 4); |
391 |
x += w; |
392 |
} |
393 |
|
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x += r->TermWin.fwidth; |
395 |
} |
396 |
} |
397 |
|
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///////////////////////////////////////////////////////////////////////////// |
399 |
|
400 |
struct rxvt_font_x11 : rxvt_font { |
401 |
rxvt_font_x11 () { f = 0; } |
402 |
|
403 |
void clear (); |
404 |
|
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rxvt_fontprop properties (); |
406 |
|
407 |
bool load (const rxvt_fontprop &prop); |
408 |
|
409 |
bool has_codepoint (unicode_t unicode); |
410 |
|
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void draw (rxvt_drawable &d, int x, int y, |
412 |
const text_t *text, int len, |
413 |
int fg, int bg); |
414 |
|
415 |
XFontStruct *f; |
416 |
codeset cs; |
417 |
bool enc2b, encm; |
418 |
|
419 |
char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
420 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
421 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
422 |
bool set_properties (rxvt_fontprop &p, const char *name); |
423 |
}; |
424 |
|
425 |
char * |
426 |
rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
427 |
{ |
428 |
unsigned long value; |
429 |
|
430 |
if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
431 |
return XGetAtomName (DISPLAY, value); |
432 |
else |
433 |
return rxvt_strdup (repl); |
434 |
} |
435 |
|
436 |
rxvt_fontprop |
437 |
rxvt_font_x11::properties () |
438 |
{ |
439 |
rxvt_fontprop p; |
440 |
set_properties (p, f); |
441 |
return p; |
442 |
} |
443 |
|
444 |
bool |
445 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
446 |
{ |
447 |
p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
448 |
p.height = height; |
449 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
450 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
451 |
|
452 |
return true; |
453 |
} |
454 |
|
455 |
bool |
456 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
457 |
{ |
458 |
unsigned long height; |
459 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height)) |
460 |
return false; |
461 |
|
462 |
unsigned long avgwidth; |
463 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth)) |
464 |
avgwidth = 0; |
465 |
|
466 |
char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
467 |
char *slant = get_property (f, "SLANT", "r"); |
468 |
|
469 |
set_properties (p, height, weight, slant, avgwidth); |
470 |
|
471 |
free (weight); |
472 |
free (slant); |
473 |
|
474 |
return true; |
475 |
} |
476 |
|
477 |
bool |
478 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
479 |
{ |
480 |
int slashes = 0; |
481 |
const char *comp[13]; |
482 |
|
483 |
for (const char *c = name; *c; c++) |
484 |
if (*c == '-') |
485 |
{ |
486 |
comp[slashes++] = c + 1; |
487 |
if (slashes >= 13) |
488 |
break; |
489 |
} |
490 |
|
491 |
/* can we short-circuit the costly XLoadQueryFont? */ |
492 |
if (slashes >= 13 |
493 |
&& (*comp[ 6] >= '1' && *comp[ 6] <= '9') |
494 |
&& (*comp[11] >= '0' && *comp[11] <= '9')) |
495 |
return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11])); |
496 |
|
497 |
XFontStruct *f = XLoadQueryFont (DISPLAY, name); |
498 |
|
499 |
if (f) |
500 |
{ |
501 |
// the font should really exist now. if not, we have a problem |
502 |
// (e.g. if the user did xset fp rehash just when we were searching fonts). |
503 |
// in that case, just return garbage. |
504 |
bool ret = set_properties (p, f); |
505 |
XFreeFont (DISPLAY, f); |
506 |
return ret; |
507 |
} |
508 |
else |
509 |
return false; |
510 |
} |
511 |
|
512 |
// fix the size of scalable fonts |
513 |
static void |
514 |
fix_scalable (char *buf, const char *name, const rxvt_fontprop &prop) |
515 |
{ |
516 |
int slashes = 0; |
517 |
const char *size; |
518 |
|
519 |
for (const char *c = name; *c; c++) |
520 |
if (*c == '-') |
521 |
{ |
522 |
if (slashes == 6) |
523 |
size = c + 1; |
524 |
|
525 |
if (++slashes >= 13) |
526 |
break; |
527 |
} |
528 |
|
529 |
if (slashes >= 13 && size[0] == '0') |
530 |
{ |
531 |
strncpy (buf, name, size - name); |
532 |
buf += size - name; |
533 |
buf += sprintf (buf, "%d", prop.height); |
534 |
strcpy (buf, size + 1); |
535 |
} |
536 |
else |
537 |
strcpy (buf, name); |
538 |
} |
539 |
|
540 |
bool |
541 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
542 |
{ |
543 |
clear (); |
544 |
|
545 |
char **list; |
546 |
int count; |
547 |
list = XListFonts (DISPLAY, name, 1024, &count); |
548 |
set_name (0); |
549 |
|
550 |
if (!list) |
551 |
return false; |
552 |
|
553 |
int bestdiff = 0x7fffffff; |
554 |
for (int i = 0; i < count; i++) |
555 |
{ |
556 |
rxvt_fontprop p; |
557 |
char fname[1024]; |
558 |
fix_scalable (fname, list[i], prop); |
559 |
|
560 |
if (!set_properties (p, fname)) |
561 |
continue; |
562 |
|
563 |
if (p.height > prop.height) // weed out too large fonts |
564 |
continue; |
565 |
|
566 |
int diff = (prop.height - p.height) * 32 |
567 |
+ abs (prop.weight - p.weight) |
568 |
+ abs (prop.slant - p.slant ); |
569 |
|
570 |
if (!name // compare against best found so far |
571 |
|| diff < bestdiff) |
572 |
{ |
573 |
set_name (strdup (fname)); |
574 |
bestdiff = diff; |
575 |
} |
576 |
} |
577 |
|
578 |
XFreeFontNames (list); |
579 |
|
580 |
if (!name) |
581 |
return false; |
582 |
|
583 |
f = XLoadQueryFont (DISPLAY, name); |
584 |
|
585 |
if (!f) |
586 |
return false; |
587 |
|
588 |
char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
589 |
char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
590 |
|
591 |
if (registry && encoding) |
592 |
{ |
593 |
char charset[64]; |
594 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
595 |
|
596 |
cs = codeset_from_name (charset); |
597 |
} |
598 |
else |
599 |
{ |
600 |
const char *charset = get_property (f, "FONT", 0); |
601 |
|
602 |
if (!charset) |
603 |
charset = name; |
604 |
|
605 |
int count = 13; |
606 |
while (*charset) |
607 |
if (*charset++ == '-' && !--count) |
608 |
break; |
609 |
|
610 |
cs = codeset_from_name (charset); |
611 |
} |
612 |
|
613 |
free (registry); |
614 |
free (encoding); |
615 |
|
616 |
if (cs == CS_UNICODE) |
617 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
618 |
|
619 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
620 |
enc2b = encm || f->max_char_or_byte2 > 255; |
621 |
|
622 |
ascent = f->ascent; |
623 |
descent = f->descent; |
624 |
height = ascent + descent; |
625 |
|
626 |
slow = false; |
627 |
|
628 |
if (f->min_bounds.width == f->max_bounds.width) |
629 |
width = f->min_bounds.width; |
630 |
else if (f->per_char == NULL) |
631 |
width = f->max_bounds.width; |
632 |
else |
633 |
{ |
634 |
slow = true; |
635 |
|
636 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
637 |
|
638 |
if (encm) |
639 |
N += (f->max_byte1 - f->min_byte1) |
640 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
641 |
|
642 |
while (N) |
643 |
{ |
644 |
if (f->per_char[N].width > width) |
645 |
width = f->per_char[N].width; |
646 |
|
647 |
--N; |
648 |
} |
649 |
} |
650 |
|
651 |
if (cs == CS_UNKNOWN) |
652 |
{ |
653 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
654 |
|
655 |
clear (); |
656 |
|
657 |
return false; |
658 |
} |
659 |
|
660 |
return true; |
661 |
} |
662 |
|
663 |
void |
664 |
rxvt_font_x11::clear () |
665 |
{ |
666 |
if (f) |
667 |
{ |
668 |
XFreeFont (DISPLAY, f); |
669 |
f = 0; |
670 |
} |
671 |
} |
672 |
|
673 |
bool |
674 |
rxvt_font_x11::has_codepoint (unicode_t unicode) |
675 |
{ |
676 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
677 |
|
678 |
if (ch == NOCHAR) |
679 |
return false; |
680 |
|
681 |
/* check wether the character exists in _this_ font. horrible. */ |
682 |
XCharStruct *xcs; |
683 |
|
684 |
if (encm) |
685 |
{ |
686 |
unsigned char byte1 = ch >> 8; |
687 |
unsigned char byte2 = ch & 255; |
688 |
|
689 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
690 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
691 |
return false; |
692 |
|
693 |
if (!f->per_char) |
694 |
return true; |
695 |
|
696 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
697 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
698 |
|
699 |
xcs = f->per_char + N; |
700 |
} |
701 |
else |
702 |
{ |
703 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
704 |
return false; |
705 |
|
706 |
if (!f->per_char) |
707 |
return true; |
708 |
|
709 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
710 |
} |
711 |
|
712 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
713 |
&& xcs->ascent == 0 && xcs->descent == 0) |
714 |
return false; |
715 |
|
716 |
return true; |
717 |
} |
718 |
|
719 |
void |
720 |
rxvt_font_x11::draw (rxvt_drawable &d, int x, int y, |
721 |
const text_t *text, int len, |
722 |
int fg, int bg) |
723 |
{ |
724 |
// this looks like a mess /. |
725 |
// and it is a mess /. |
726 |
// yet we are trying to be perfect /. |
727 |
// but the result still isn't perfect /. |
728 |
|
729 |
bool slow = this->slow |
730 |
|| width != r->TermWin.fwidth |
731 |
|| height != r->TermWin.fheight; |
732 |
|
733 |
int base = r->TermWin.fbase; |
734 |
|
735 |
XGCValues v; |
736 |
v.foreground = r->pix_colors[fg]; |
737 |
v.font = f->fid; |
738 |
|
739 |
if (enc2b) |
740 |
{ |
741 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
742 |
|
743 |
if (bg == Color_bg && !slow) |
744 |
{ |
745 |
v.background = r->pix_colors[bg]; |
746 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
747 |
XDrawImageString16 (d.display->display, d, TGC, x, y + base, xc, len); |
748 |
} |
749 |
else |
750 |
{ |
751 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
752 |
|
753 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
754 |
|
755 |
if (slow) |
756 |
{ |
757 |
do |
758 |
{ |
759 |
if (xc->byte1 || xc->byte2) |
760 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, 1); |
761 |
|
762 |
x += r->TermWin.fwidth; |
763 |
xc++; len--; |
764 |
} |
765 |
while (len); |
766 |
} |
767 |
else |
768 |
XDrawString16 (d.display->display, d, TGC, x, y + base, xc, len); |
769 |
} |
770 |
} |
771 |
else |
772 |
{ |
773 |
const char *xc = enc_char (text, len, cs, slow); |
774 |
|
775 |
if (bg == Color_bg && !slow) |
776 |
{ |
777 |
v.background = r->pix_colors[bg]; |
778 |
XChangeGC (d.display->display, TGC, GCForeground | GCBackground | GCFont, &v); |
779 |
XDrawImageString (d.display->display, d, TGC, x, y + base, xc, len); |
780 |
} |
781 |
else |
782 |
{ |
783 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
784 |
|
785 |
XChangeGC (d.display->display, TGC, GCForeground | GCFont, &v); |
786 |
|
787 |
if (slow) |
788 |
{ |
789 |
do |
790 |
{ |
791 |
if (*xc) |
792 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, 1); |
793 |
|
794 |
x += r->TermWin.fwidth; |
795 |
xc++; len--; |
796 |
} |
797 |
while (len); |
798 |
} |
799 |
else |
800 |
XDrawString (d.display->display, d, TGC, x, y + base, xc, len); |
801 |
} |
802 |
} |
803 |
} |
804 |
|
805 |
///////////////////////////////////////////////////////////////////////////// |
806 |
|
807 |
#if XFT |
808 |
#if 0 |
809 |
#define UNIBITS 21 |
810 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
811 |
#define SWATHBITS 8 |
812 |
#endif |
813 |
|
814 |
struct rxvt_font_xft : rxvt_font { |
815 |
rxvt_font_xft () { f = 0; } |
816 |
|
817 |
void clear (); |
818 |
|
819 |
rxvt_fontprop properties (); |
820 |
|
821 |
bool load (const rxvt_fontprop &prop); |
822 |
|
823 |
void draw (rxvt_drawable &d, int x, int y, |
824 |
const text_t *text, int len, |
825 |
int fg, int bg); |
826 |
|
827 |
bool has_codepoint (unicode_t unicode); |
828 |
|
829 |
protected: |
830 |
XftFont *f; |
831 |
}; |
832 |
|
833 |
void |
834 |
rxvt_font_xft::clear () |
835 |
{ |
836 |
if (f) |
837 |
{ |
838 |
XftFontClose (DISPLAY, f); |
839 |
f = 0; |
840 |
} |
841 |
} |
842 |
|
843 |
rxvt_fontprop |
844 |
rxvt_font_xft::properties () |
845 |
{ |
846 |
rxvt_fontprop p; |
847 |
|
848 |
FT_Face face = XftLockFace (f); |
849 |
|
850 |
p.width = width; |
851 |
p.height = height; |
852 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD |
853 |
? rxvt_fontprop::bold : rxvt_fontprop::medium; |
854 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC |
855 |
? rxvt_fontprop::italic : rxvt_fontprop::roman; |
856 |
|
857 |
XftUnlockFace (f); |
858 |
|
859 |
return p; |
860 |
} |
861 |
|
862 |
bool |
863 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
864 |
{ |
865 |
#if 0 |
866 |
for (int i = 0; i < SWATHCOUNT; i++) |
867 |
cvr[i] = 0; |
868 |
#endif |
869 |
|
870 |
clear (); |
871 |
|
872 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
873 |
|
874 |
if (!p) |
875 |
return false; |
876 |
|
877 |
FcValue v; |
878 |
|
879 |
if (FcPatternGet (p, FC_PIXEL_SIZE, 0, &v) != FcResultMatch) |
880 |
FcPatternAddInteger (p, FC_PIXEL_SIZE, prop.height); |
881 |
|
882 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
883 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
884 |
|
885 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
886 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
887 |
|
888 |
if (FcPatternGet (p, FC_MINSPACE, 0, &v) != FcResultMatch) |
889 |
FcPatternAddBool (p, FC_MINSPACE, 1); |
890 |
|
891 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
892 |
// clip width, we can't do better, or can we? |
893 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
894 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop.width); |
895 |
#endif |
896 |
|
897 |
XftResult result; |
898 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
899 |
|
900 |
FcPatternDestroy (p); |
901 |
|
902 |
if (!match) |
903 |
return false; |
904 |
|
905 |
f = XftFontOpenPattern (DISPLAY, match); |
906 |
|
907 |
if (!f) |
908 |
{ |
909 |
FcPatternDestroy (match); |
910 |
return false; |
911 |
} |
912 |
|
913 |
FT_Face face = XftLockFace (f); |
914 |
|
915 |
slow = !FT_IS_FIXED_WIDTH (face); |
916 |
|
917 |
int ftheight = 0; |
918 |
|
919 |
for (;;) |
920 |
{ |
921 |
XGlyphInfo g1, g2; |
922 |
FcChar8 c; |
923 |
|
924 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
925 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
926 |
|
927 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
928 |
slow = true; |
929 |
|
930 |
width = g2.xOff; |
931 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
932 |
descent = (-face->size->metrics.descender + 63) >> 6; |
933 |
height = ascent + descent; |
934 |
|
935 |
if (height <= prop.height || !prop.height) |
936 |
break; |
937 |
|
938 |
if (ftheight) |
939 |
{ |
940 |
// take smaller steps near the end |
941 |
if (height > prop.height + 1) ftheight++; |
942 |
if (height > prop.height + 2) ftheight++; |
943 |
if (height > prop.height + 3) ftheight++; |
944 |
|
945 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
946 |
} |
947 |
else |
948 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
949 |
} |
950 |
|
951 |
XftUnlockFace (f); |
952 |
|
953 |
return true; |
954 |
} |
955 |
|
956 |
bool |
957 |
rxvt_font_xft::has_codepoint (unicode_t unicode) |
958 |
{ |
959 |
return XftCharExists (DISPLAY, f, unicode); |
960 |
} |
961 |
|
962 |
void |
963 |
rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, |
964 |
const text_t *text, int len, |
965 |
int fg, int bg) |
966 |
{ |
967 |
clear_rect (d, x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
968 |
|
969 |
if (0 && !slow && width == r->TermWin.fwidth) |
970 |
{ |
971 |
if (sizeof (text_t) == sizeof (FcChar16)) |
972 |
XftDrawString16 (d, &r->pix_colors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
973 |
else |
974 |
XftDrawString32 (d, &r->pix_colors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
975 |
} |
976 |
else |
977 |
{ |
978 |
while (len) |
979 |
{ |
980 |
if (*text != NOCHAR && *text != ' ') |
981 |
{ |
982 |
int fwidth = r->TermWin.fwidth; |
983 |
if (len >= 2 && text[1] == NOCHAR) |
984 |
fwidth *= 2; |
985 |
|
986 |
XGlyphInfo extents; |
987 |
if (sizeof (text_t) == sizeof (FcChar16)) |
988 |
{ |
989 |
XftTextExtents16 (d.display->display, f, (const FcChar16 *)text, 1, &extents); |
990 |
XftDrawString16 (d, &r->pix_colors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
991 |
y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
992 |
} |
993 |
else |
994 |
{ |
995 |
XGlyphInfo extents; |
996 |
XftTextExtents32 (d.display->display, f, (const FcChar32 *)text, 1, &extents); |
997 |
XftDrawString32 (d, &r->pix_colors[fg].c, f, x + extents.x + (fwidth - extents.width) / 2, |
998 |
y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
999 |
} |
1000 |
} |
1001 |
|
1002 |
x += r->TermWin.fwidth; |
1003 |
text++; |
1004 |
len--; |
1005 |
} |
1006 |
} |
1007 |
} |
1008 |
#endif |
1009 |
|
1010 |
///////////////////////////////////////////////////////////////////////////// |
1011 |
|
1012 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
1013 |
: r (r), fontdesc (0) |
1014 |
{ |
1015 |
clear (); |
1016 |
} |
1017 |
|
1018 |
rxvt_fontset::~rxvt_fontset () |
1019 |
{ |
1020 |
clear (); |
1021 |
} |
1022 |
|
1023 |
void |
1024 |
rxvt_fontset::clear () |
1025 |
{ |
1026 |
for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) |
1027 |
FONT_UNREF (*i); |
1028 |
|
1029 |
free (fontdesc); fontdesc = 0; |
1030 |
|
1031 |
fonts.clear (); |
1032 |
base_id = 0; |
1033 |
base_prop.height = 0x7fffffff; |
1034 |
base_prop.weight = rxvt_fontprop::medium; |
1035 |
base_prop.slant = rxvt_fontprop::roman; |
1036 |
|
1037 |
fallback = fallback_fonts; |
1038 |
} |
1039 |
|
1040 |
rxvt_font * |
1041 |
rxvt_fontset::new_font (const char *name, codeset cs) |
1042 |
{ |
1043 |
rxvt_font *f; |
1044 |
|
1045 |
if (!name || !*name) |
1046 |
{ |
1047 |
name = ""; |
1048 |
f = new rxvt_font_default; |
1049 |
} |
1050 |
#if XFT |
1051 |
else if (!strncmp (name, "xft:", 4)) |
1052 |
{ |
1053 |
name += 4; |
1054 |
f = new rxvt_font_xft; |
1055 |
} |
1056 |
#endif |
1057 |
else if (!strncmp (name, "x:", 2)) |
1058 |
{ |
1059 |
name += 2; |
1060 |
f = new rxvt_font_x11; |
1061 |
} |
1062 |
else |
1063 |
f = new rxvt_font_x11; |
1064 |
|
1065 |
f->fs = this; |
1066 |
f->set_term (r); |
1067 |
f->set_name (strdup (name)); |
1068 |
|
1069 |
f->cs = cs; |
1070 |
f->loaded = false; |
1071 |
|
1072 |
return f; |
1073 |
} |
1074 |
|
1075 |
///////////////////////////////////////////////////////////////////////////// |
1076 |
|
1077 |
void |
1078 |
rxvt_fontset::add_fonts (const char *desc) |
1079 |
{ |
1080 |
if (desc) |
1081 |
{ |
1082 |
char buf[512]; |
1083 |
const char *end; |
1084 |
|
1085 |
do |
1086 |
{ |
1087 |
while (*desc <= ' ') desc++; |
1088 |
|
1089 |
if (*desc == '[') |
1090 |
{ |
1091 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
1092 |
|
1093 |
//const char *extra = desc++; // not yet used |
1094 |
|
1095 |
desc = strchr (desc, ']'); |
1096 |
|
1097 |
if (!desc) |
1098 |
{ |
1099 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
1100 |
break; |
1101 |
} |
1102 |
|
1103 |
desc++; |
1104 |
while (*desc <= ' ') desc++; |
1105 |
} |
1106 |
|
1107 |
end = strchr (desc, ','); |
1108 |
if (!end) |
1109 |
end = desc + strlen (desc); |
1110 |
|
1111 |
if (end - desc < 511) |
1112 |
{ |
1113 |
strncpy (buf, desc, end - desc); |
1114 |
buf[end - desc] = 0; |
1115 |
|
1116 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
1117 |
} |
1118 |
|
1119 |
desc = end + 1; |
1120 |
} |
1121 |
while (*end); |
1122 |
} |
1123 |
} |
1124 |
|
1125 |
bool |
1126 |
rxvt_fontset::realize_font (int i) |
1127 |
{ |
1128 |
if (fonts[i]->loaded) |
1129 |
return true; |
1130 |
|
1131 |
fonts[i]->loaded = true; |
1132 |
|
1133 |
if (!fonts[i]->load (base_prop)) |
1134 |
{ |
1135 |
fonts[i]->cs = CS_UNKNOWN; |
1136 |
return false; |
1137 |
} |
1138 |
|
1139 |
return true; |
1140 |
} |
1141 |
|
1142 |
bool |
1143 |
rxvt_fontset::populate (const char *desc) |
1144 |
{ |
1145 |
clear (); |
1146 |
|
1147 |
fontdesc = strdup (desc); |
1148 |
|
1149 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1150 |
realize_font (0); |
1151 |
|
1152 |
add_fonts (desc); |
1153 |
|
1154 |
if (!base_id) |
1155 |
base_id = 1; |
1156 |
|
1157 |
// we currently need a base-font, no matter what |
1158 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1159 |
{ |
1160 |
puts ("unable to load specified font (s), falling back to 'fixed'\n"); |
1161 |
add_fonts ("fixed"); |
1162 |
base_id = fonts.size () - 1; |
1163 |
} |
1164 |
|
1165 |
if ((int)fonts.size () <= base_id || !realize_font (base_id)) |
1166 |
return false; |
1167 |
|
1168 |
base_prop = fonts[base_id]->properties (); |
1169 |
|
1170 |
return true; |
1171 |
} |
1172 |
|
1173 |
int |
1174 |
rxvt_fontset::find_font (const char *name) const |
1175 |
{ |
1176 |
for (rxvt_font *const *f = fonts.begin (); f < fonts.end (); f++) |
1177 |
if ((*f)->name && !strcmp ((*f)->name, name)) |
1178 |
return f - fonts.begin (); |
1179 |
|
1180 |
return -1; |
1181 |
} |
1182 |
|
1183 |
int |
1184 |
rxvt_fontset::find_font (unicode_t unicode, bool bold) |
1185 |
{ |
1186 |
|
1187 |
for (unsigned int i = !!(0x20 <= unicode && unicode <= 0x7f); // skip pseudo-font for ascii |
1188 |
i < fonts.size (); |
1189 |
i++) |
1190 |
{ |
1191 |
rxvt_font *f = fonts[i]; |
1192 |
|
1193 |
if (!f->loaded) |
1194 |
{ |
1195 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1196 |
goto next_font; |
1197 |
|
1198 |
if (!realize_font (i)) |
1199 |
goto next_font; |
1200 |
} |
1201 |
|
1202 |
if (f->cs == CS_UNKNOWN) |
1203 |
goto next_font; |
1204 |
|
1205 |
if (bold && f->properties ().weight < rxvt_fontprop::bold) |
1206 |
goto next_font; |
1207 |
|
1208 |
if (f->has_codepoint (unicode)) |
1209 |
return i; |
1210 |
|
1211 |
next_font: |
1212 |
if (i == fonts.size () - 1) |
1213 |
{ |
1214 |
if (fallback->name) |
1215 |
{ |
1216 |
// search through the fallback list |
1217 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1218 |
fallback++; |
1219 |
} |
1220 |
else if (!bold) |
1221 |
{ |
1222 |
// try to find a new font. |
1223 |
// only xft currently supported, as there is no |
1224 |
// way to configure this and xft is easier to hack in, |
1225 |
// while x11 has more framework in place already. |
1226 |
// TODO: bold is being ignroed (obviously). |
1227 |
#if XFT |
1228 |
// grab the first xft font that seems suitable |
1229 |
FcPattern *p = FcPatternCreate (); |
1230 |
|
1231 |
FcCharSet *s = FcCharSetCreate (); |
1232 |
FcCharSetAddChar (s, unicode); |
1233 |
FcPatternAddCharSet (p, FC_CHARSET, s); |
1234 |
// charsets don't help that much, as xft might return |
1235 |
// a non-matching font even if a better font is available :/ |
1236 |
|
1237 |
FcPatternAddInteger (p, FC_PIXEL_SIZE, base_prop.height); |
1238 |
FcPatternAddInteger (p, FC_WEIGHT, bold ? rxvt_fontprop::bold : base_prop.weight); |
1239 |
FcPatternAddInteger (p, FC_SLANT, base_prop.slant); |
1240 |
FcPatternAddBool (p, FC_MINSPACE, 1); |
1241 |
//FcPatternAddBool (p, FC_ANTIALIAS, 1); |
1242 |
|
1243 |
XftResult result; |
1244 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
1245 |
|
1246 |
FcPatternDestroy (p); |
1247 |
|
1248 |
if (match) |
1249 |
{ |
1250 |
FcPatternDel (match, FC_CHARSET); |
1251 |
char *font = (char *)FcNameUnparse (match); |
1252 |
FcPatternDestroy (match); |
1253 |
|
1254 |
if (find_font (font) < 0) |
1255 |
{ |
1256 |
char fontname[4096]; |
1257 |
sprintf (fontname, "xft:%-.4090s", font); |
1258 |
|
1259 |
fonts.push_back (new_font (fontname, CS_UNICODE)); |
1260 |
} |
1261 |
|
1262 |
free (font); |
1263 |
} |
1264 |
#endif |
1265 |
} |
1266 |
} |
1267 |
} |
1268 |
|
1269 |
// if no bold font found, use a regular one |
1270 |
if (bold) |
1271 |
return find_font (unicode); |
1272 |
|
1273 |
return 0; /* we must return SOME font */ |
1274 |
} |
1275 |
|
1276 |
|
1277 |
|