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/*--------------------------------*-C-*---------------------------------*; |
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* File: defaultfont.C |
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*----------------------------------------------------------------------* |
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* Copyright (c) 2003 Marc Lehmann rxvt@plan9.de> |
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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->Xdisplay |
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#define DRAWABLE r->TermWin.vt |
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#define GC r->TermWin.gc |
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|
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const struct rxvt_fallback_font { |
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codeset cs; |
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const char *name; |
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} fallback_fonts[] = { |
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{ CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" }, |
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{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" }, |
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{ CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-fcd8859-15" }, |
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|
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#if ENCODING_EU |
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// cyrillic |
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{ CS_KOI8_R, "-*-*-*-r-*--*-*-*-*-c-*-koi8-r" }, |
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{ CS_KOI8_U, "-*-*-*-r-*--*-*-*-*-c-*-koi8-u" }, |
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|
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{ CS_ISO8859_2, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-2" }, |
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{ CS_ISO8859_3, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-3" }, |
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{ CS_ISO8859_4, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-4" }, |
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{ CS_ISO8859_5, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-5" }, |
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{ CS_ISO8859_6, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-6" }, |
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{ CS_ISO8859_7, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-7" }, |
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{ CS_ISO8859_8, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-8" }, |
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{ CS_ISO8859_9, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-9" }, |
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{ CS_ISO8859_10, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-10" }, |
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{ CS_ISO8859_11, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-11" }, |
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{ CS_ISO8859_13, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-13" }, |
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{ CS_ISO8859_14, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-14" }, |
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{ CS_ISO8859_16, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-16" }, |
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#endif |
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|
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// japanese |
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#if ENCODING_JP || ENCODING_JP_EXT |
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# if XFT |
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// prefer xft for complex scripts |
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{ CS_UNICODE, "xft:Kochi Gothic:antialias=false" }, |
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# endif |
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{ CS_JIS0201_1976_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0201*-0" }, |
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{ CS_JIS0208_1983_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0208*-0" }, |
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{ CS_JIS0212_1990_0, "-*-mincho-*-r-*--*-*-*-*-c-*-jisx0212*-0" }, |
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#endif |
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|
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#if ENCODING_CN || ENCODING_CN_EXT |
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# if XFT |
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{ CS_BIG5_EXT, "xft:AR PL Mingti2L Big5" }, |
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{ CS_BIG5_EXT, "xft:AR PL KaitiM Big5" }, |
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{ CS_GB2312_1980_0, "xft:AR PL KaitiM GB" }, |
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{ CS_GB2312_1980_0, "xft:AR PL SungtiL GB" }, |
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# endif |
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{ CS_CNS11643_1992_1, "-*-*-*-r-*-*-*-*-*-*-c-*-cns11643.1992-1" }, |
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{ CS_CNS11643_1992_2, "-*-*-*-r-*-*-*-*-*-*-c-*-cns11643.1992-2" }, |
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{ CS_CNS11643_1992_3, "-*-*-*-r-*-*-*-*-*-*-c-*-cns11643.1992-3" }, |
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{ CS_CNS11643_1992_4, "-*-*-*-r-*-*-*-*-*-*-c-*-cns11643.1992-4" }, |
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{ CS_CNS11643_1992_5, "-*-*-*-r-*-*-*-*-*-*-c-*-cns11643.1992-5" }, |
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{ CS_CNS11643_1992_6, "-*-*-*-r-*-*-*-*-*-*-c-*-cns11643.1992-6" }, |
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{ CS_CNS11643_1992_7, "-*-*-*-r-*-*-*-*-*-*-c-*-cns11643.1992-7" }, |
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{ CS_CNS11643_1992_F, "-*-*-*-r-*-*-*-*-*-*-c-*-cns11643.1992-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-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
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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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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 (int 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, int 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, int 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 (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 (DISPLAY, DRAWABLE, x, y, w, h, FALSE); |
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else if (color >= 0) |
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{ |
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XSetForeground (DISPLAY, GC, r->PixColors[color]); |
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XFillRectangle (DISPLAY, DRAWABLE, GC, x, y, w, h); |
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} |
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} |
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|
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static const char *linedraw_cmds[128] = { |
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"1hH", "2hH", "1vV", "2vV", |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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"1HV", "2H1V", "1H2V", "2HV", |
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|
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// 2510 |
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"1hV", "2h1V", "1h2V", "2hV", |
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"1Hv", "2H1v", "1H2v", "2Hv", |
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"1hv", "2h1v", "1h2v", "2hv", |
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"1HvV", "2H1vV", "1HV2v", "1Hv2V", |
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|
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// 2520 |
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"1H2vV", "2Hv1V", "2HV1v", "2HvV", |
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"1hvV", "2h1vV", "1hV2v", "1hv2V", |
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"1h2vV", "2hv1V", "1v2hV", "2hvV", |
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"1hHV", "2h1HV", "2H1hV", "2hH1V", |
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|
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// 2530 |
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"1hH2V", "2hV1H", "1h2HV", "2hHV", |
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"1hHv", "1vH2h", "1hv2H", "1v2hH", |
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"1hH2v", "1H2hv", "1h2Hv", "2hHv", |
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"1hHvV", "1vVH2h", "1hvV2H", "1vV2hH", |
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|
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// 2540 |
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"1hHV2v", "1hHv2V", "1hH2vV", "1HV2hv", |
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"1hV2Hv", "1Hv2hV", "1hv2HV", "1V2hHv", |
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"1v2hHV", "1H2hvV", "1h2HvV", "2hHvV", |
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0, 0, 0, 0, |
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|
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// 2550 |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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|
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// 2560 |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 0, 0, 0, |
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|
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// 2570 |
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0, "1a", "1b", "1ab", |
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"1h", "1v", "1H", "1V", |
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"2h", "2v", "2H", "2V", |
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"1h2H", "1v2V", "1H2h", "1V2v" |
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|
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// to be done |
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}; |
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|
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struct rxvt_font_default : rxvt_font { |
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rxvt_fontprop properties () |
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{ |
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rxvt_fontprop p; |
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|
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p.height = 1; |
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p.weight = rxvt_fontprop::medium; |
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p.slant = rxvt_fontprop::roman; |
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|
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return p; |
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} |
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|
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bool load (const rxvt_fontprop &prop) |
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{ |
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width = 1; height = 1; |
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ascent = 1; descent = 0; |
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|
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return true; |
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} |
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|
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bool has_codepoint (uint32_t unicode) |
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{ |
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if (unicode <= 0x001f) |
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return true; |
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if (unicode >= 0x0080 && unicode <= 0x009f) |
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return true; |
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|
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if (unicode >= 0x2500 && unicode <= 0x257f |
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&& linedraw_cmds[unicode - 0x2500]) |
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return true; |
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|
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switch (unicode) |
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{ |
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case ZERO_WIDTH_CHAR: |
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return true; |
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} |
262 |
|
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return false; |
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} |
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|
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void draw (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 (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 (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
277 |
|
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XSetForeground (DISPLAY, GC, r->PixColors[fg]); |
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|
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while (len--) |
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{ |
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text_t t = *text++; |
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|
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if (t >= 0x2500 & t <= 0x2580 && linedraw_cmds[t - 0x2500]) |
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{ |
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const char *p = linedraw_cmds[t - 0x2500]; |
287 |
|
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int x0 = x, x1 = x + r->TermWin.fwidth / 2, x2 = x + r->TermWin.fwidth ; |
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int y0 = y, y1 = y + r->TermWin.fheight / 2, y2 = y + r->TermWin.fheight; |
290 |
|
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XGCValues gcv; |
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|
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while (*p) |
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{ |
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switch (*p++) |
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{ |
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case '1': |
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gcv.line_width = 0; |
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XChangeGC (DISPLAY, GC, GCLineWidth, &gcv); |
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break; |
301 |
|
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case '2': |
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gcv.line_width = 2; |
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XChangeGC (DISPLAY, GC, GCLineWidth, &gcv); |
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break; |
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|
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case 'h': XDrawLine (DISPLAY, DRAWABLE, GC, x0, y1, x1, y1); break; |
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case 'H': XDrawLine (DISPLAY, DRAWABLE, GC, x1, y1, x2, y1); break; |
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case 'v': XDrawLine (DISPLAY, DRAWABLE, GC, x1, y0, x1, y1); break; |
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case 'V': XDrawLine (DISPLAY, DRAWABLE, GC, x1, y1, x1, y2); break; |
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case 'a': XDrawLine (DISPLAY, DRAWABLE, GC, x0, y2, x2, y0); break; |
312 |
case 'b': XDrawLine (DISPLAY, DRAWABLE, GC, x0, y0, x2, y2); break; |
313 |
} |
314 |
} |
315 |
|
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gcv.line_width = 0; |
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XChangeGC (DISPLAY, GC, GCLineWidth, &gcv); |
318 |
} |
319 |
else |
320 |
switch (*text++) |
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{ |
322 |
case NOCHAR: |
323 |
case ZERO_WIDTH_CHAR: |
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break; |
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default: |
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XDrawRectangle (DISPLAY, DRAWABLE, GC, x + 2, y + 2, r->TermWin.fwidth - 5, r->TermWin.fheight - 5); |
327 |
} |
328 |
|
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x += r->TermWin.fwidth; |
330 |
} |
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} |
332 |
|
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///////////////////////////////////////////////////////////////////////////// |
334 |
|
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struct rxvt_font_x11 : rxvt_font { |
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rxvt_font_x11 () { f = 0; } |
337 |
|
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void clear (); |
339 |
|
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rxvt_fontprop properties (); |
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rxvt_fontprop properties (XFontStruct *f); |
342 |
|
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bool load (const rxvt_fontprop &prop); |
344 |
|
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bool has_codepoint (uint32_t unicode); |
346 |
|
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void draw (int x, int y, |
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const text_t *text, int len, |
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int fg, int bg); |
350 |
|
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XFontStruct *f; |
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codeset cs; |
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bool enc2b, encm; |
354 |
|
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const char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
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}; |
357 |
|
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const char * |
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rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
360 |
{ |
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unsigned long value; |
362 |
|
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if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
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return XGetAtomName (DISPLAY, value); |
365 |
else |
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return repl; |
367 |
} |
368 |
|
369 |
rxvt_fontprop |
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rxvt_font_x11::properties () |
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{ |
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return properties (f); |
373 |
} |
374 |
|
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rxvt_fontprop |
376 |
rxvt_font_x11::properties (XFontStruct *f) |
377 |
{ |
378 |
rxvt_fontprop p; |
379 |
|
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const char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
381 |
const char *slant = get_property (f, "SLANT", "r"); |
382 |
|
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p.height = height; |
384 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
385 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
386 |
|
387 |
return p; |
388 |
} |
389 |
|
390 |
bool |
391 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
392 |
{ |
393 |
clear (); |
394 |
|
395 |
char **list; |
396 |
int count; |
397 |
XFontStruct *info; |
398 |
list = XListFontsWithInfo (DISPLAY, name, 128, &count, &info); |
399 |
|
400 |
if (!list) |
401 |
return false; |
402 |
|
403 |
int bestdiff = 0x7fffffff; |
404 |
XFontStruct *best = 0; |
405 |
for (int i = 0; i < count; i++) |
406 |
{ |
407 |
XFontStruct *f = info + i; |
408 |
|
409 |
if (f->ascent + f->descent <= prop.height) // weed out too large fonts |
410 |
{ |
411 |
rxvt_fontprop p = properties (f); |
412 |
int diff = (prop.height - f->ascent + f->descent) * 32 |
413 |
+ abs (prop.weight - p.weight) |
414 |
+ abs (prop.slant - p.slant ); |
415 |
|
416 |
if (!best // compare against best found so far |
417 |
|| diff < bestdiff) |
418 |
{ |
419 |
best = f; |
420 |
bestdiff = diff; |
421 |
} |
422 |
} |
423 |
} |
424 |
|
425 |
set_name (strdup (list[best - info])); |
426 |
|
427 |
XFreeFontInfo (list, info, count); |
428 |
|
429 |
f = XLoadQueryFont (DISPLAY, name); |
430 |
|
431 |
if (!f) |
432 |
return false; |
433 |
|
434 |
unsigned long value; |
435 |
|
436 |
const char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
437 |
const char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
438 |
|
439 |
if (registry && encoding) |
440 |
{ |
441 |
char charset[64]; |
442 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
443 |
|
444 |
cs = codeset_from_name (charset); |
445 |
} |
446 |
else |
447 |
{ |
448 |
const char *charset = get_property (f, "FONT", 0); |
449 |
|
450 |
if (!charset) |
451 |
charset = name; |
452 |
|
453 |
int count = 13; |
454 |
while (*charset) |
455 |
if (*charset++ == '-' && !--count) |
456 |
break; |
457 |
|
458 |
cs = codeset_from_name (charset); |
459 |
} |
460 |
|
461 |
if (cs == CS_UNICODE) |
462 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
463 |
|
464 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
465 |
enc2b = encm || f->max_char_or_byte2 > 255; |
466 |
|
467 |
ascent = f->ascent; |
468 |
descent = f->descent; |
469 |
height = ascent + descent; |
470 |
|
471 |
slow = false; |
472 |
|
473 |
if (f->min_bounds.width == f->max_bounds.width) |
474 |
width = f->min_bounds.width; |
475 |
else if (f->per_char == NULL) |
476 |
width = f->max_bounds.width; |
477 |
else |
478 |
{ |
479 |
slow = true; |
480 |
|
481 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
482 |
|
483 |
if (encm) |
484 |
N += (f->max_byte1 - f->min_byte1) |
485 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
486 |
|
487 |
while (N) |
488 |
{ |
489 |
if (f->per_char[N].width > width) |
490 |
width = f->per_char[N].width; |
491 |
|
492 |
--N; |
493 |
} |
494 |
} |
495 |
|
496 |
if (cs == CS_UNKNOWN) |
497 |
{ |
498 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
499 |
|
500 |
clear (); |
501 |
|
502 |
return false; |
503 |
} |
504 |
|
505 |
return true; |
506 |
} |
507 |
|
508 |
void |
509 |
rxvt_font_x11::clear () |
510 |
{ |
511 |
if (f) |
512 |
{ |
513 |
XFreeFont (DISPLAY, f); |
514 |
f = 0; |
515 |
} |
516 |
} |
517 |
|
518 |
bool |
519 |
rxvt_font_x11::has_codepoint (uint32_t unicode) |
520 |
{ |
521 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
522 |
|
523 |
if (ch == NOCHAR) |
524 |
return false; |
525 |
|
526 |
/* check wether the character exists in _this_ font. horrible. */ |
527 |
XCharStruct *xcs; |
528 |
|
529 |
if (encm) |
530 |
{ |
531 |
int byte1 = ch >> 8; |
532 |
int byte2 = ch & 255; |
533 |
|
534 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
535 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
536 |
return false; |
537 |
|
538 |
if (!f->per_char) |
539 |
return true; |
540 |
|
541 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
542 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
543 |
|
544 |
xcs = f->per_char + N; |
545 |
} |
546 |
else |
547 |
{ |
548 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
549 |
return false; |
550 |
|
551 |
if (!f->per_char) |
552 |
return true; |
553 |
|
554 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
555 |
} |
556 |
|
557 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
558 |
&& xcs->ascent == 0 && xcs->descent == 0) |
559 |
return false; |
560 |
|
561 |
return true; |
562 |
} |
563 |
|
564 |
void |
565 |
rxvt_font_x11::draw (int x, int y, |
566 |
const text_t *text, int len, |
567 |
int fg, int bg) |
568 |
{ |
569 |
// this looks like a mess /. |
570 |
// and it is a mess /. |
571 |
// yet we are trying to be perfect /. |
572 |
// but the result still isn't perfect /. |
573 |
|
574 |
bool slow = this->slow |
575 |
|| width != r->TermWin.fwidth |
576 |
|| height != r->TermWin.fheight; |
577 |
|
578 |
int base = r->TermWin.fbase; |
579 |
|
580 |
XGCValues v; |
581 |
v.foreground = r->PixColors[fg]; |
582 |
v.background = r->PixColors[bg]; |
583 |
v.font = f->fid; |
584 |
|
585 |
if (enc2b) |
586 |
{ |
587 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
588 |
|
589 |
if (bg == Color_bg && !slow) |
590 |
{ |
591 |
XChangeGC (DISPLAY, GC, GCForeground | GCBackground | GCFont, &v); |
592 |
XDrawImageString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
593 |
} |
594 |
else |
595 |
{ |
596 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
597 |
|
598 |
XChangeGC (DISPLAY, GC, GCForeground | GCFont, &v); |
599 |
|
600 |
if (slow) |
601 |
{ |
602 |
do |
603 |
{ |
604 |
if (xc->byte1 || xc->byte2) |
605 |
XDrawString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, 1); |
606 |
|
607 |
x += r->TermWin.fwidth; |
608 |
xc++; len--; |
609 |
} |
610 |
while (len); |
611 |
} |
612 |
else |
613 |
XDrawString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
614 |
} |
615 |
} |
616 |
else |
617 |
{ |
618 |
const char *xc = enc_char (text, len, cs, slow); |
619 |
|
620 |
if (bg == Color_bg && !slow) |
621 |
{ |
622 |
XChangeGC (DISPLAY, GC, GCForeground | GCBackground | GCFont, &v); |
623 |
XDrawImageString (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
624 |
} |
625 |
else |
626 |
{ |
627 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
628 |
|
629 |
XChangeGC (DISPLAY, GC, GCForeground | GCFont, &v); |
630 |
|
631 |
if (slow) |
632 |
{ |
633 |
do |
634 |
{ |
635 |
if (*xc) |
636 |
XDrawString (DISPLAY, DRAWABLE, GC, x, y + base, xc, 1); |
637 |
|
638 |
x += r->TermWin.fwidth; |
639 |
xc++; len--; |
640 |
} |
641 |
while (len); |
642 |
} |
643 |
else |
644 |
XDrawString (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
645 |
} |
646 |
} |
647 |
} |
648 |
|
649 |
///////////////////////////////////////////////////////////////////////////// |
650 |
|
651 |
#if XFT |
652 |
#if 0 |
653 |
#define UNIBITS 21 |
654 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
655 |
#define SWATHBITS 8 |
656 |
#endif |
657 |
|
658 |
struct rxvt_font_xft : rxvt_font { |
659 |
#if 0 |
660 |
enum { |
661 |
SWATHCOUNT = 1 << (21 - UNIBITS), |
662 |
SWATHSIZE = 1 << (SWATHBITS - 5) |
663 |
}; |
664 |
typedef uint32_t swath[SWATHSIZE]; |
665 |
|
666 |
swath *cvr[SWATHCOUNT]; |
667 |
#endif |
668 |
|
669 |
#if 0 |
670 |
void gen_coverage_swath (unsigned int page); |
671 |
|
672 |
bool has_char (uint32_t ch) |
673 |
{ |
674 |
unsigned int page = ch >> SWATHBITS; |
675 |
unsigned int idx = ch & ((1 << SWATHBITS) - 1); |
676 |
|
677 |
if (page >= SWATHCOUNT) |
678 |
return false; |
679 |
|
680 |
if (!cvr[page]) gen_coverage_swath (page); |
681 |
|
682 |
return cvr[page][idx >> 5] & (1 << (idx & 31)); |
683 |
} |
684 |
#endif |
685 |
rxvt_font_xft () { f = 0; d = 0; } |
686 |
|
687 |
void clear (); |
688 |
|
689 |
rxvt_fontprop properties (); |
690 |
|
691 |
bool load (const rxvt_fontprop &prop); |
692 |
|
693 |
void draw (int x, int y, |
694 |
const text_t *text, int len, |
695 |
int fg, int bg); |
696 |
|
697 |
bool has_codepoint (uint32_t unicode); |
698 |
|
699 |
protected: |
700 |
XftFont *f; |
701 |
XftDraw *d; |
702 |
|
703 |
#if 0 |
704 |
virtual void populate_coverage_swath (uint32_t lo, uint32_t hi) = 0; |
705 |
void set_swath (uint32_t ch) |
706 |
{ |
707 |
cvr[ch >> SWATHBITS] |= 1 << (ch & ((1 << SWATHBITS) - 1)); |
708 |
} |
709 |
#endif |
710 |
}; |
711 |
|
712 |
void |
713 |
rxvt_font_xft::clear () |
714 |
{ |
715 |
if (f) |
716 |
{ |
717 |
XftFontClose (DISPLAY, f); |
718 |
f = 0; |
719 |
} |
720 |
|
721 |
if (d) |
722 |
{ |
723 |
XftDrawDestroy (d); |
724 |
d = 0; |
725 |
} |
726 |
|
727 |
#if 0 |
728 |
for (int i = 0; i < SWATHCOUNT; i++) |
729 |
delete cvr[i]; |
730 |
#endif |
731 |
} |
732 |
|
733 |
rxvt_fontprop |
734 |
rxvt_font_xft::properties () |
735 |
{ |
736 |
rxvt_fontprop p; |
737 |
|
738 |
FT_Face face = XftLockFace (f); |
739 |
|
740 |
p.height = height; |
741 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
742 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC ? rxvt_fontprop::italic : rxvt_fontprop::roman; |
743 |
|
744 |
XftUnlockFace (f); |
745 |
|
746 |
return p; |
747 |
} |
748 |
|
749 |
bool |
750 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
751 |
{ |
752 |
#if 0 |
753 |
for (int i = 0; i < SWATHCOUNT; i++) |
754 |
cvr[i] = 0; |
755 |
#endif |
756 |
|
757 |
clear (); |
758 |
|
759 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
760 |
|
761 |
if (!p) |
762 |
return false; |
763 |
|
764 |
FcValue v; |
765 |
|
766 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
767 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
768 |
|
769 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
770 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
771 |
|
772 |
//FcPatternAddBool (p, FC_MINSPACE, 1); |
773 |
|
774 |
XftResult result; |
775 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
776 |
|
777 |
FcPatternDestroy (p); |
778 |
|
779 |
if (!match) |
780 |
return false; |
781 |
|
782 |
f = XftFontOpenPattern (DISPLAY, match); |
783 |
|
784 |
if (!f) |
785 |
{ |
786 |
FcPatternDestroy (match); |
787 |
return false; |
788 |
} |
789 |
|
790 |
FT_Face face = XftLockFace (f); |
791 |
|
792 |
slow = !FT_IS_FIXED_WIDTH (face); |
793 |
|
794 |
int ftheight = 0; |
795 |
|
796 |
for (;;) |
797 |
{ |
798 |
XGlyphInfo g1, g2; |
799 |
FcChar8 c; |
800 |
|
801 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
802 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
803 |
|
804 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
805 |
slow = true; |
806 |
|
807 |
width = g2.xOff; |
808 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
809 |
descent = (-face->size->metrics.descender + 63) >> 6; |
810 |
height = ascent + descent; |
811 |
|
812 |
if (height <= prop.height || !prop.height) |
813 |
break; |
814 |
|
815 |
if (ftheight) |
816 |
{ |
817 |
// take smaller steps near the end |
818 |
if (height > prop.height + 1) ftheight++; |
819 |
if (height > prop.height + 2) ftheight++; |
820 |
if (height > prop.height + 3) ftheight++; |
821 |
|
822 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
823 |
} |
824 |
else |
825 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
826 |
} |
827 |
|
828 |
XftUnlockFace (f); |
829 |
|
830 |
return true; |
831 |
} |
832 |
|
833 |
#if 0 |
834 |
void rxvt_font::gen_coverage_swath (unsigned int page) |
835 |
{ |
836 |
cvr[page] = new swath; |
837 |
|
838 |
for (int i = 0; i < SWATHSIZE; i++) |
839 |
cvr[page][i] = 0; |
840 |
|
841 |
populate_coverage_swath (cvr[page], page << SWATHBITS, ((page + 1) << SWATHBITS) - 1); |
842 |
} |
843 |
#endif |
844 |
|
845 |
bool |
846 |
rxvt_font_xft::has_codepoint (uint32_t unicode) |
847 |
{ |
848 |
return XftCharExists (DISPLAY, f, unicode); |
849 |
} |
850 |
|
851 |
void |
852 |
rxvt_font_xft::draw (int x, int y, |
853 |
const text_t *text, int len, |
854 |
int fg, int bg) |
855 |
{ |
856 |
if (!d) |
857 |
{ |
858 |
dR; |
859 |
d = XftDrawCreate (DISPLAY, DRAWABLE, XVISUAL, XCMAP); |
860 |
} |
861 |
|
862 |
if (bg >= 0 && bg != Color_bg) |
863 |
XftDrawRect (d, &r->PixColors[bg].c, x, y, r->TermWin.fwidth * len, r->TermWin.fheight); |
864 |
else |
865 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
866 |
|
867 |
if (!slow && width == r->TermWin.fwidth) |
868 |
{ |
869 |
if (sizeof (text_t) == sizeof (FcChar16)) |
870 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
871 |
else |
872 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
873 |
} |
874 |
else |
875 |
{ |
876 |
while (len) |
877 |
{ |
878 |
if (*text != NOCHAR && *text != ' ') |
879 |
{ |
880 |
if (sizeof (text_t) == sizeof (FcChar16)) |
881 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
882 |
else |
883 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
884 |
} |
885 |
|
886 |
x += r->TermWin.fwidth; |
887 |
text++; |
888 |
len--; |
889 |
} |
890 |
} |
891 |
} |
892 |
#endif |
893 |
|
894 |
///////////////////////////////////////////////////////////////////////////// |
895 |
|
896 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
897 |
#ifdef EXPLICIT_CONTEXT |
898 |
: r(r) |
899 |
#endif |
900 |
{ |
901 |
clear (); |
902 |
} |
903 |
|
904 |
rxvt_fontset::~rxvt_fontset () |
905 |
{ |
906 |
clear (); |
907 |
} |
908 |
|
909 |
void |
910 |
rxvt_fontset::clear () |
911 |
{ |
912 |
for (rxvt_font **i = fonts.begin (); i != fonts.end(); i++) |
913 |
FONT_UNREF (*i); |
914 |
|
915 |
fonts.clear (); |
916 |
base_id = 0; |
917 |
base_prop.height = 0x7fffffff; |
918 |
base_prop.weight = rxvt_fontprop::medium; |
919 |
base_prop.slant = rxvt_fontprop::roman; |
920 |
|
921 |
fallback = fallback_fonts; |
922 |
} |
923 |
|
924 |
rxvt_font * |
925 |
rxvt_fontset::new_font (const char *name, codeset cs) |
926 |
{ |
927 |
rxvt_font *f; |
928 |
|
929 |
if (!name || !*name) |
930 |
{ |
931 |
name = ""; |
932 |
f = new rxvt_font_default; |
933 |
} |
934 |
#if XFT |
935 |
else if (!strncmp (name, "xft:", 4)) |
936 |
{ |
937 |
name += 4; |
938 |
f = new rxvt_font_xft; |
939 |
} |
940 |
#endif |
941 |
else if (!strncmp (name, "x:", 2)) |
942 |
{ |
943 |
name += 2; |
944 |
f = new rxvt_font_x11; |
945 |
} |
946 |
else |
947 |
f = new rxvt_font_x11; |
948 |
|
949 |
f->set_term (r); |
950 |
f->set_name (strdup (name)); |
951 |
|
952 |
f->cs = cs; |
953 |
f->loaded = false; |
954 |
|
955 |
return f; |
956 |
} |
957 |
|
958 |
///////////////////////////////////////////////////////////////////////////// |
959 |
|
960 |
void |
961 |
rxvt_fontset::add_fonts (const char *desc) |
962 |
{ |
963 |
if (desc) |
964 |
{ |
965 |
char buf[512]; |
966 |
const char *end; |
967 |
|
968 |
do |
969 |
{ |
970 |
while (*desc <= ' ') desc++; |
971 |
|
972 |
if (*desc == '[') |
973 |
{ |
974 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
975 |
|
976 |
const char *extra = desc++; |
977 |
|
978 |
desc = strchr (desc, ']'); |
979 |
|
980 |
if (!desc) |
981 |
{ |
982 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
983 |
break; |
984 |
} |
985 |
|
986 |
desc++; |
987 |
while (*desc <= ' ') desc++; |
988 |
} |
989 |
|
990 |
end = strchr (desc, ','); |
991 |
if (!end) |
992 |
end = desc + strlen (desc); |
993 |
|
994 |
if (end - desc < 511) |
995 |
{ |
996 |
strncpy (buf, desc, end - desc); |
997 |
buf[end - desc] = 0; |
998 |
|
999 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
1000 |
} |
1001 |
|
1002 |
desc = end + 1; |
1003 |
} |
1004 |
while (*end); |
1005 |
} |
1006 |
} |
1007 |
|
1008 |
bool |
1009 |
rxvt_fontset::realize_font (int i) |
1010 |
{ |
1011 |
if (fonts[i]->loaded) |
1012 |
return true; |
1013 |
|
1014 |
fonts[i]->loaded = true; |
1015 |
|
1016 |
if (!fonts[i]->load (base_prop)) |
1017 |
{ |
1018 |
fonts[i]->cs = CS_UNKNOWN; |
1019 |
return false; |
1020 |
} |
1021 |
|
1022 |
return true; |
1023 |
} |
1024 |
|
1025 |
void |
1026 |
rxvt_fontset::populate (const char *desc) |
1027 |
{ |
1028 |
clear (); |
1029 |
|
1030 |
fonts.push_back (new_font (0, CS_UNICODE)); |
1031 |
realize_font (0); |
1032 |
|
1033 |
add_fonts (desc); |
1034 |
|
1035 |
if (!base_id) |
1036 |
base_id = 1; |
1037 |
|
1038 |
// we currently need a base-font, no matter what |
1039 |
if (fonts.size () <= base_id || !realize_font (base_id)) |
1040 |
{ |
1041 |
add_fonts ("fixed"); |
1042 |
base_id = fonts.size () - 1; |
1043 |
} |
1044 |
|
1045 |
if (fonts.size () <= base_id || !realize_font (base_id)) |
1046 |
{ |
1047 |
fprintf (stderr, "unable to load a base font, please provide one using -fn fontname\n"); |
1048 |
exit (1); |
1049 |
} |
1050 |
|
1051 |
base_prop = fonts[base_id]->properties (); |
1052 |
} |
1053 |
|
1054 |
int |
1055 |
rxvt_fontset::find_font (uint32_t unicode) |
1056 |
{ |
1057 |
for (int i = 0; i < fonts.size (); i++) |
1058 |
{ |
1059 |
rxvt_font *f = fonts[i]; |
1060 |
|
1061 |
if (!f->loaded) |
1062 |
{ |
1063 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
1064 |
goto next_font; |
1065 |
|
1066 |
if (!realize_font (i)) |
1067 |
goto next_font; |
1068 |
} |
1069 |
|
1070 |
if (f->cs != CS_UNKNOWN && f->has_codepoint (unicode)) |
1071 |
return i; |
1072 |
|
1073 |
next_font: |
1074 |
if (i == fonts.size () - 1 && fallback->name) |
1075 |
{ |
1076 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
1077 |
fallback++; |
1078 |
i = 0; |
1079 |
} |
1080 |
} |
1081 |
|
1082 |
return 0; /* we must return SOME font */ |
1083 |
} |
1084 |
|
1085 |
|
1086 |
|