| 1 |
/*--------------------------------*-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. |
| 6 |
* |
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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, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643.1992-1" }, |
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{ CS_CNS11643_1992_2, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643.1992-2" }, |
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{ CS_CNS11643_1992_3, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643.1992-3" }, |
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{ CS_CNS11643_1992_4, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643.1992-4" }, |
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{ CS_CNS11643_1992_5, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643.1992-5" }, |
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{ CS_CNS11643_1992_6, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643.1992-6" }, |
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{ CS_CNS11643_1992_7, "-*-*-*-*-*-*-*-*-*-*-c-*-cns11643.1992-7" }, |
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{ CS_CNS11643_1992_F, "-*-*-*-*-*-*-*-*-*-*-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-*-*-*-*-*-*-*-*-m-*-iso10646-1" }, |
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{ CS_UNICODE, "xft:FreeMono" }, |
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{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-c-*-iso10646-1" }, |
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{ CS_UNICODE, "-*-*-*-r-*-*-*-*-*-*-m-*-iso10646-1" }, |
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|
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{ 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.width = p.height = 1; |
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p.weight = rxvt_fontprop::medium; |
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p.slant = rxvt_fontprop::roman; |
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|
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return p; |
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} |
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|
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bool load (const rxvt_fontprop &prop) |
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{ |
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width = 1; height = 1; |
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ascent = 1; descent = 0; |
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|
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return true; |
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} |
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|
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bool has_codepoint (uint32_t unicode) |
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{ |
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if (unicode <= 0x001f) |
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return true; |
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if (unicode >= 0x0080 && unicode <= 0x009f) |
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return true; |
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|
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if (unicode >= 0x2500 && unicode <= 0x257f |
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&& linedraw_cmds[unicode - 0x2500]) |
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return true; |
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|
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switch (unicode) |
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{ |
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case ZERO_WIDTH_CHAR: |
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return true; |
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} |
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|
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return false; |
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} |
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|
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void draw (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); |
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|
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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]; |
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|
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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; |
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|
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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; |
| 302 |
|
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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; |
| 309 |
case 'H': XDrawLine (DISPLAY, DRAWABLE, GC, x1, y1, x2, y1); break; |
| 310 |
case 'v': XDrawLine (DISPLAY, DRAWABLE, GC, x1, y0, x1, y1); break; |
| 311 |
case 'V': XDrawLine (DISPLAY, DRAWABLE, GC, x1, y1, x1, y2); break; |
| 312 |
case 'a': XDrawLine (DISPLAY, DRAWABLE, GC, x0, y2, x2, y0); break; |
| 313 |
case 'b': XDrawLine (DISPLAY, DRAWABLE, GC, x0, y0, x2, y2); break; |
| 314 |
} |
| 315 |
} |
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|
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gcv.line_width = 0; |
| 318 |
XChangeGC (DISPLAY, GC, GCLineWidth, &gcv); |
| 319 |
} |
| 320 |
else |
| 321 |
switch (*text++) |
| 322 |
{ |
| 323 |
case NOCHAR: |
| 324 |
case ZERO_WIDTH_CHAR: |
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break; |
| 326 |
default: |
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XDrawRectangle (DISPLAY, DRAWABLE, GC, x + 2, y + 2, r->TermWin.fwidth - 5, r->TermWin.fheight - 5); |
| 328 |
} |
| 329 |
|
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x += r->TermWin.fwidth; |
| 331 |
} |
| 332 |
} |
| 333 |
|
| 334 |
///////////////////////////////////////////////////////////////////////////// |
| 335 |
|
| 336 |
struct rxvt_font_x11 : rxvt_font { |
| 337 |
rxvt_font_x11 () { f = 0; } |
| 338 |
|
| 339 |
void clear (); |
| 340 |
|
| 341 |
rxvt_fontprop properties (); |
| 342 |
|
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bool load (const rxvt_fontprop &prop); |
| 344 |
|
| 345 |
bool has_codepoint (uint32_t unicode); |
| 346 |
|
| 347 |
void draw (int x, int y, |
| 348 |
const text_t *text, int len, |
| 349 |
int fg, int bg); |
| 350 |
|
| 351 |
XFontStruct *f; |
| 352 |
codeset cs; |
| 353 |
bool enc2b, encm; |
| 354 |
|
| 355 |
const char *get_property (XFontStruct *f, const char *property, const char *repl) const; |
| 356 |
bool set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth); |
| 357 |
bool set_properties (rxvt_fontprop &p, XFontStruct *f); |
| 358 |
bool set_properties (rxvt_fontprop &p, const char *name); |
| 359 |
}; |
| 360 |
|
| 361 |
const char * |
| 362 |
rxvt_font_x11::get_property (XFontStruct *f, const char *property, const char *repl) const |
| 363 |
{ |
| 364 |
unsigned long value; |
| 365 |
|
| 366 |
if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
| 367 |
return XGetAtomName (DISPLAY, value); |
| 368 |
else |
| 369 |
return repl; |
| 370 |
} |
| 371 |
|
| 372 |
rxvt_fontprop |
| 373 |
rxvt_font_x11::properties () |
| 374 |
{ |
| 375 |
rxvt_fontprop p; |
| 376 |
set_properties (p, f); |
| 377 |
return p; |
| 378 |
} |
| 379 |
|
| 380 |
bool |
| 381 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, int height, const char *weight, const char *slant, int avgwidth) |
| 382 |
{ |
| 383 |
p.width = avgwidth ? (avgwidth + 1) / 10 : (height + 1) / 2; |
| 384 |
p.height = height; |
| 385 |
p.weight = *weight == 'B' || *weight == 'b' ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
| 386 |
p.slant = *slant == 'r' || *slant == 'R' ? rxvt_fontprop::roman : rxvt_fontprop::italic; |
| 387 |
|
| 388 |
return true; |
| 389 |
} |
| 390 |
|
| 391 |
bool |
| 392 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, XFontStruct *f) |
| 393 |
{ |
| 394 |
const char *weight = get_property (f, "WEIGHT_NAME", "medium"); |
| 395 |
const char *slant = get_property (f, "SLANT", "r"); |
| 396 |
|
| 397 |
unsigned long height; |
| 398 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "PIXEL_SIZE", 0), &height)) |
| 399 |
return false; |
| 400 |
|
| 401 |
unsigned long avgwidth; |
| 402 |
if (!XGetFontProperty (f, XInternAtom (DISPLAY, "AVERAGE_WIDTH", 0), &avgwidth)) |
| 403 |
avgwidth = 0; |
| 404 |
|
| 405 |
return set_properties (p, height, weight, slant, avgwidth); |
| 406 |
} |
| 407 |
|
| 408 |
bool |
| 409 |
rxvt_font_x11::set_properties (rxvt_fontprop &p, const char *name) |
| 410 |
{ |
| 411 |
int slashes = 0; |
| 412 |
const char *comp[12]; |
| 413 |
|
| 414 |
for (const char *c = name; *c; c++) |
| 415 |
if (*c == '-') |
| 416 |
{ |
| 417 |
comp[slashes++] = c + 1; |
| 418 |
if (slashes >= 13) |
| 419 |
break; |
| 420 |
} |
| 421 |
|
| 422 |
/* can we short-circuit the costly XLoadQueryFont? */ |
| 423 |
if (slashes >= 13 |
| 424 |
&& (*comp[ 6] >= '1' && *comp[ 6] <= '9') |
| 425 |
&& (*comp[11] >= '0' && *comp[11] <= '9')) |
| 426 |
return set_properties (p, atoi (comp[6]), comp[2], comp[3], atoi (comp[11])); |
| 427 |
|
| 428 |
XFontStruct *f = XLoadQueryFont (DISPLAY, name); |
| 429 |
|
| 430 |
if (f) |
| 431 |
{ |
| 432 |
// the font should really exists now. if not, we have a problem |
| 433 |
// (e.g. if the user did xset fp rehash just when we were searching fonts). |
| 434 |
// in that case, just return garbage. |
| 435 |
bool ret = set_properties (p, f); |
| 436 |
XFreeFont (DISPLAY, f); |
| 437 |
return ret; |
| 438 |
} |
| 439 |
else |
| 440 |
return false; |
| 441 |
} |
| 442 |
|
| 443 |
// fix the size of scalable fonts |
| 444 |
static void |
| 445 |
fix_scalable (char *buf, const char *name, const rxvt_fontprop &prop) |
| 446 |
{ |
| 447 |
int slashes = 0; |
| 448 |
const char *size; |
| 449 |
|
| 450 |
for (const char *c = name; *c; c++) |
| 451 |
if (*c == '-') |
| 452 |
{ |
| 453 |
if (slashes == 6) |
| 454 |
size = c + 1; |
| 455 |
|
| 456 |
if (++slashes >= 13) |
| 457 |
break; |
| 458 |
} |
| 459 |
|
| 460 |
if (slashes >= 13 && size[0] == '0') |
| 461 |
{ |
| 462 |
strncpy (buf, name, size - name); |
| 463 |
buf += size - name; |
| 464 |
buf += sprintf (buf, "%d", prop.height); |
| 465 |
strcpy (buf, size + 1); |
| 466 |
} |
| 467 |
else |
| 468 |
strcpy (buf, name); |
| 469 |
} |
| 470 |
|
| 471 |
bool |
| 472 |
rxvt_font_x11::load (const rxvt_fontprop &prop) |
| 473 |
{ |
| 474 |
clear (); |
| 475 |
|
| 476 |
char **list; |
| 477 |
int count; |
| 478 |
list = XListFonts (DISPLAY, name, 512, &count); |
| 479 |
set_name (0); |
| 480 |
|
| 481 |
if (!list) |
| 482 |
return false; |
| 483 |
|
| 484 |
int bestdiff = 0x7fffffff; |
| 485 |
for (int i = 0; i < count; i++) |
| 486 |
{ |
| 487 |
rxvt_fontprop p; |
| 488 |
char fname[1024]; |
| 489 |
fix_scalable (fname, list[i], prop); |
| 490 |
|
| 491 |
if (!set_properties (p, fname)) |
| 492 |
continue; |
| 493 |
|
| 494 |
if (p.height > prop.height) // weed out too large fonts |
| 495 |
continue; |
| 496 |
|
| 497 |
int diff = (prop.height - p.height) * 32 |
| 498 |
+ abs (prop.weight - p.weight) |
| 499 |
+ abs (prop.slant - p.slant ); |
| 500 |
|
| 501 |
if (!name // compare against best found so far |
| 502 |
|| diff < bestdiff) |
| 503 |
{ |
| 504 |
set_name (strdup (fname)); |
| 505 |
bestdiff = diff; |
| 506 |
} |
| 507 |
} |
| 508 |
|
| 509 |
XFreeFontNames (list); |
| 510 |
|
| 511 |
if (!name) |
| 512 |
return false; |
| 513 |
|
| 514 |
f = XLoadQueryFont (DISPLAY, name); |
| 515 |
|
| 516 |
if (!f) |
| 517 |
return false; |
| 518 |
|
| 519 |
unsigned long value; |
| 520 |
|
| 521 |
const char *registry = get_property (f, "CHARSET_REGISTRY", 0); |
| 522 |
const char *encoding = get_property (f, "CHARSET_ENCODING", 0); |
| 523 |
|
| 524 |
if (registry && encoding) |
| 525 |
{ |
| 526 |
char charset[64]; |
| 527 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
| 528 |
|
| 529 |
cs = codeset_from_name (charset); |
| 530 |
} |
| 531 |
else |
| 532 |
{ |
| 533 |
const char *charset = get_property (f, "FONT", 0); |
| 534 |
|
| 535 |
if (!charset) |
| 536 |
charset = name; |
| 537 |
|
| 538 |
int count = 13; |
| 539 |
while (*charset) |
| 540 |
if (*charset++ == '-' && !--count) |
| 541 |
break; |
| 542 |
|
| 543 |
cs = codeset_from_name (charset); |
| 544 |
} |
| 545 |
|
| 546 |
if (cs == CS_UNICODE) |
| 547 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
| 548 |
|
| 549 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
| 550 |
enc2b = encm || f->max_char_or_byte2 > 255; |
| 551 |
|
| 552 |
ascent = f->ascent; |
| 553 |
descent = f->descent; |
| 554 |
height = ascent + descent; |
| 555 |
|
| 556 |
slow = false; |
| 557 |
|
| 558 |
if (f->min_bounds.width == f->max_bounds.width) |
| 559 |
width = f->min_bounds.width; |
| 560 |
else if (f->per_char == NULL) |
| 561 |
width = f->max_bounds.width; |
| 562 |
else |
| 563 |
{ |
| 564 |
slow = true; |
| 565 |
|
| 566 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
| 567 |
|
| 568 |
if (encm) |
| 569 |
N += (f->max_byte1 - f->min_byte1) |
| 570 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
| 571 |
|
| 572 |
while (N) |
| 573 |
{ |
| 574 |
if (f->per_char[N].width > width) |
| 575 |
width = f->per_char[N].width; |
| 576 |
|
| 577 |
--N; |
| 578 |
} |
| 579 |
} |
| 580 |
|
| 581 |
if (cs == CS_UNKNOWN) |
| 582 |
{ |
| 583 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
| 584 |
|
| 585 |
clear (); |
| 586 |
|
| 587 |
return false; |
| 588 |
} |
| 589 |
|
| 590 |
return true; |
| 591 |
} |
| 592 |
|
| 593 |
void |
| 594 |
rxvt_font_x11::clear () |
| 595 |
{ |
| 596 |
if (f) |
| 597 |
{ |
| 598 |
XFreeFont (DISPLAY, f); |
| 599 |
f = 0; |
| 600 |
} |
| 601 |
} |
| 602 |
|
| 603 |
bool |
| 604 |
rxvt_font_x11::has_codepoint (uint32_t unicode) |
| 605 |
{ |
| 606 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
| 607 |
|
| 608 |
if (ch == NOCHAR) |
| 609 |
return false; |
| 610 |
|
| 611 |
/* check wether the character exists in _this_ font. horrible. */ |
| 612 |
XCharStruct *xcs; |
| 613 |
|
| 614 |
if (encm) |
| 615 |
{ |
| 616 |
int byte1 = ch >> 8; |
| 617 |
int byte2 = ch & 255; |
| 618 |
|
| 619 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
| 620 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
| 621 |
return false; |
| 622 |
|
| 623 |
if (!f->per_char) |
| 624 |
return true; |
| 625 |
|
| 626 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
| 627 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
| 628 |
|
| 629 |
xcs = f->per_char + N; |
| 630 |
} |
| 631 |
else |
| 632 |
{ |
| 633 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
| 634 |
return false; |
| 635 |
|
| 636 |
if (!f->per_char) |
| 637 |
return true; |
| 638 |
|
| 639 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
| 640 |
} |
| 641 |
|
| 642 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
| 643 |
&& xcs->ascent == 0 && xcs->descent == 0) |
| 644 |
return false; |
| 645 |
|
| 646 |
return true; |
| 647 |
} |
| 648 |
|
| 649 |
void |
| 650 |
rxvt_font_x11::draw (int x, int y, |
| 651 |
const text_t *text, int len, |
| 652 |
int fg, int bg) |
| 653 |
{ |
| 654 |
// this looks like a mess /. |
| 655 |
// and it is a mess /. |
| 656 |
// yet we are trying to be perfect /. |
| 657 |
// but the result still isn't perfect /. |
| 658 |
|
| 659 |
bool slow = this->slow |
| 660 |
|| width != r->TermWin.fwidth |
| 661 |
|| height != r->TermWin.fheight; |
| 662 |
|
| 663 |
int base = r->TermWin.fbase; |
| 664 |
|
| 665 |
XGCValues v; |
| 666 |
v.foreground = r->PixColors[fg]; |
| 667 |
v.background = r->PixColors[bg]; |
| 668 |
v.font = f->fid; |
| 669 |
|
| 670 |
if (enc2b) |
| 671 |
{ |
| 672 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
| 673 |
|
| 674 |
if (bg == Color_bg && !slow) |
| 675 |
{ |
| 676 |
XChangeGC (DISPLAY, GC, GCForeground | GCBackground | GCFont, &v); |
| 677 |
XDrawImageString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
| 678 |
} |
| 679 |
else |
| 680 |
{ |
| 681 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
| 682 |
|
| 683 |
XChangeGC (DISPLAY, GC, GCForeground | GCFont, &v); |
| 684 |
|
| 685 |
if (slow) |
| 686 |
{ |
| 687 |
do |
| 688 |
{ |
| 689 |
if (xc->byte1 || xc->byte2) |
| 690 |
XDrawString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, 1); |
| 691 |
|
| 692 |
x += r->TermWin.fwidth; |
| 693 |
xc++; len--; |
| 694 |
} |
| 695 |
while (len); |
| 696 |
} |
| 697 |
else |
| 698 |
XDrawString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
| 699 |
} |
| 700 |
} |
| 701 |
else |
| 702 |
{ |
| 703 |
const char *xc = enc_char (text, len, cs, slow); |
| 704 |
|
| 705 |
if (bg == Color_bg && !slow) |
| 706 |
{ |
| 707 |
XChangeGC (DISPLAY, GC, GCForeground | GCBackground | GCFont, &v); |
| 708 |
XDrawImageString (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
| 709 |
} |
| 710 |
else |
| 711 |
{ |
| 712 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
| 713 |
|
| 714 |
XChangeGC (DISPLAY, GC, GCForeground | GCFont, &v); |
| 715 |
|
| 716 |
if (slow) |
| 717 |
{ |
| 718 |
do |
| 719 |
{ |
| 720 |
if (*xc) |
| 721 |
XDrawString (DISPLAY, DRAWABLE, GC, x, y + base, xc, 1); |
| 722 |
|
| 723 |
x += r->TermWin.fwidth; |
| 724 |
xc++; len--; |
| 725 |
} |
| 726 |
while (len); |
| 727 |
} |
| 728 |
else |
| 729 |
XDrawString (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
| 730 |
} |
| 731 |
} |
| 732 |
} |
| 733 |
|
| 734 |
///////////////////////////////////////////////////////////////////////////// |
| 735 |
|
| 736 |
#if XFT |
| 737 |
#if 0 |
| 738 |
#define UNIBITS 21 |
| 739 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
| 740 |
#define SWATHBITS 8 |
| 741 |
#endif |
| 742 |
|
| 743 |
struct rxvt_font_xft : rxvt_font { |
| 744 |
rxvt_font_xft () { f = 0; d = 0; } |
| 745 |
|
| 746 |
void clear (); |
| 747 |
|
| 748 |
rxvt_fontprop properties (); |
| 749 |
|
| 750 |
bool load (const rxvt_fontprop &prop); |
| 751 |
|
| 752 |
void draw (int x, int y, |
| 753 |
const text_t *text, int len, |
| 754 |
int fg, int bg); |
| 755 |
|
| 756 |
bool has_codepoint (uint32_t unicode); |
| 757 |
|
| 758 |
protected: |
| 759 |
XftFont *f; |
| 760 |
XftDraw *d; |
| 761 |
}; |
| 762 |
|
| 763 |
void |
| 764 |
rxvt_font_xft::clear () |
| 765 |
{ |
| 766 |
if (f) |
| 767 |
{ |
| 768 |
XftFontClose (DISPLAY, f); |
| 769 |
f = 0; |
| 770 |
} |
| 771 |
|
| 772 |
if (d) |
| 773 |
{ |
| 774 |
XftDrawDestroy (d); |
| 775 |
d = 0; |
| 776 |
} |
| 777 |
} |
| 778 |
|
| 779 |
rxvt_fontprop |
| 780 |
rxvt_font_xft::properties () |
| 781 |
{ |
| 782 |
rxvt_fontprop p; |
| 783 |
|
| 784 |
FT_Face face = XftLockFace (f); |
| 785 |
|
| 786 |
p.width = width; p.height = height; |
| 787 |
p.weight = face->style_flags & FT_STYLE_FLAG_BOLD ? rxvt_fontprop::bold : rxvt_fontprop::medium; |
| 788 |
p.slant = face->style_flags & FT_STYLE_FLAG_ITALIC ? rxvt_fontprop::italic : rxvt_fontprop::roman; |
| 789 |
|
| 790 |
XftUnlockFace (f); |
| 791 |
|
| 792 |
return p; |
| 793 |
} |
| 794 |
|
| 795 |
bool |
| 796 |
rxvt_font_xft::load (const rxvt_fontprop &prop) |
| 797 |
{ |
| 798 |
#if 0 |
| 799 |
for (int i = 0; i < SWATHCOUNT; i++) |
| 800 |
cvr[i] = 0; |
| 801 |
#endif |
| 802 |
|
| 803 |
clear (); |
| 804 |
|
| 805 |
FcPattern *p = FcNameParse ((FcChar8 *) name); |
| 806 |
|
| 807 |
if (!p) |
| 808 |
return false; |
| 809 |
|
| 810 |
FcValue v; |
| 811 |
|
| 812 |
if (FcPatternGet (p, FC_WEIGHT, 0, &v) != FcResultMatch) |
| 813 |
FcPatternAddInteger (p, FC_WEIGHT, prop.weight); |
| 814 |
|
| 815 |
if (FcPatternGet (p, FC_SLANT, 0, &v) != FcResultMatch) |
| 816 |
FcPatternAddInteger (p, FC_SLANT, prop.slant); |
| 817 |
|
| 818 |
#if 0 // clipping unfortunately destroys our precious double-width-characters |
| 819 |
// clip width, we can't do better, or can we? |
| 820 |
if (FcPatternGet (p, FC_CHAR_WIDTH, 0, &v) != FcResultMatch) |
| 821 |
FcPatternAddInteger (p, FC_CHAR_WIDTH, prop.width); |
| 822 |
#endif |
| 823 |
|
| 824 |
//FcPatternAddBool (p, FC_MINSPACE, 1); |
| 825 |
|
| 826 |
XftResult result; |
| 827 |
FcPattern *match = XftFontMatch (DISPLAY, DefaultScreen (DISPLAY), p, &result); |
| 828 |
|
| 829 |
FcPatternDestroy (p); |
| 830 |
|
| 831 |
if (!match) |
| 832 |
return false; |
| 833 |
|
| 834 |
f = XftFontOpenPattern (DISPLAY, match); |
| 835 |
|
| 836 |
if (!f) |
| 837 |
{ |
| 838 |
FcPatternDestroy (match); |
| 839 |
return false; |
| 840 |
} |
| 841 |
|
| 842 |
FT_Face face = XftLockFace (f); |
| 843 |
|
| 844 |
slow = !FT_IS_FIXED_WIDTH (face); |
| 845 |
|
| 846 |
int ftheight = 0; |
| 847 |
|
| 848 |
for (;;) |
| 849 |
{ |
| 850 |
XGlyphInfo g1, g2; |
| 851 |
FcChar8 c; |
| 852 |
|
| 853 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
| 854 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
| 855 |
|
| 856 |
if (g1.xOff != g2.xOff) // don't simply trust the font |
| 857 |
slow = true; |
| 858 |
|
| 859 |
width = g2.xOff; |
| 860 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
| 861 |
descent = (-face->size->metrics.descender + 63) >> 6; |
| 862 |
height = ascent + descent; |
| 863 |
|
| 864 |
if (height <= prop.height || !prop.height) |
| 865 |
break; |
| 866 |
|
| 867 |
if (ftheight) |
| 868 |
{ |
| 869 |
// take smaller steps near the end |
| 870 |
if (height > prop.height + 1) ftheight++; |
| 871 |
if (height > prop.height + 2) ftheight++; |
| 872 |
if (height > prop.height + 3) ftheight++; |
| 873 |
|
| 874 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - prop.height); |
| 875 |
} |
| 876 |
else |
| 877 |
FT_Set_Pixel_Sizes (face, 0, ftheight = prop.height); |
| 878 |
} |
| 879 |
|
| 880 |
XftUnlockFace (f); |
| 881 |
|
| 882 |
return true; |
| 883 |
} |
| 884 |
|
| 885 |
bool |
| 886 |
rxvt_font_xft::has_codepoint (uint32_t unicode) |
| 887 |
{ |
| 888 |
return XftCharExists (DISPLAY, f, unicode); |
| 889 |
} |
| 890 |
|
| 891 |
void |
| 892 |
rxvt_font_xft::draw (int x, int y, |
| 893 |
const text_t *text, int len, |
| 894 |
int fg, int bg) |
| 895 |
{ |
| 896 |
if (!d) |
| 897 |
{ |
| 898 |
dR; |
| 899 |
d = XftDrawCreate (DISPLAY, DRAWABLE, XVISUAL, XCMAP); |
| 900 |
} |
| 901 |
|
| 902 |
if (bg >= 0 && bg != Color_bg) |
| 903 |
XftDrawRect (d, &r->PixColors[bg].c, x, y, r->TermWin.fwidth * len, r->TermWin.fheight); |
| 904 |
else |
| 905 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
| 906 |
|
| 907 |
if (!slow && width == r->TermWin.fwidth && 0) |
| 908 |
{ |
| 909 |
if (sizeof (text_t) == sizeof (FcChar16)) |
| 910 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
| 911 |
else |
| 912 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
| 913 |
} |
| 914 |
else |
| 915 |
{ |
| 916 |
while (len) |
| 917 |
{ |
| 918 |
if (*text != NOCHAR && *text != ' ') |
| 919 |
{ |
| 920 |
XGlyphInfo extents; |
| 921 |
if (sizeof (text_t) == sizeof (FcChar16)) |
| 922 |
{ |
| 923 |
XftTextExtents16 (DISPLAY, f, (const FcChar16 *)text, 1, &extents); |
| 924 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x + extents.x + (r->TermWin.fwidth - extents.width) / 2, |
| 925 |
y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
| 926 |
} |
| 927 |
else |
| 928 |
{ |
| 929 |
XGlyphInfo extents; |
| 930 |
XftTextExtents32 (DISPLAY, f, (const FcChar32 *)text, 1, &extents); |
| 931 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x + extents.x + (r->TermWin.fwidth - extents.width) / 2, |
| 932 |
y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
| 933 |
} |
| 934 |
} |
| 935 |
|
| 936 |
x += r->TermWin.fwidth; |
| 937 |
text++; |
| 938 |
len--; |
| 939 |
} |
| 940 |
} |
| 941 |
} |
| 942 |
#endif |
| 943 |
|
| 944 |
///////////////////////////////////////////////////////////////////////////// |
| 945 |
|
| 946 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
| 947 |
#ifdef EXPLICIT_CONTEXT |
| 948 |
: r(r) |
| 949 |
#endif |
| 950 |
{ |
| 951 |
clear (); |
| 952 |
} |
| 953 |
|
| 954 |
rxvt_fontset::~rxvt_fontset () |
| 955 |
{ |
| 956 |
clear (); |
| 957 |
} |
| 958 |
|
| 959 |
void |
| 960 |
rxvt_fontset::clear () |
| 961 |
{ |
| 962 |
for (rxvt_font **i = fonts.begin (); i != fonts.end(); i++) |
| 963 |
FONT_UNREF (*i); |
| 964 |
|
| 965 |
fonts.clear (); |
| 966 |
base_id = 0; |
| 967 |
base_prop.height = 0x7fffffff; |
| 968 |
base_prop.weight = rxvt_fontprop::medium; |
| 969 |
base_prop.slant = rxvt_fontprop::roman; |
| 970 |
|
| 971 |
fallback = fallback_fonts; |
| 972 |
} |
| 973 |
|
| 974 |
rxvt_font * |
| 975 |
rxvt_fontset::new_font (const char *name, codeset cs) |
| 976 |
{ |
| 977 |
rxvt_font *f; |
| 978 |
|
| 979 |
if (!name || !*name) |
| 980 |
{ |
| 981 |
name = ""; |
| 982 |
f = new rxvt_font_default; |
| 983 |
} |
| 984 |
#if XFT |
| 985 |
else if (!strncmp (name, "xft:", 4)) |
| 986 |
{ |
| 987 |
name += 4; |
| 988 |
f = new rxvt_font_xft; |
| 989 |
} |
| 990 |
#endif |
| 991 |
else if (!strncmp (name, "x:", 2)) |
| 992 |
{ |
| 993 |
name += 2; |
| 994 |
f = new rxvt_font_x11; |
| 995 |
} |
| 996 |
else |
| 997 |
f = new rxvt_font_x11; |
| 998 |
|
| 999 |
f->set_term (r); |
| 1000 |
f->set_name (strdup (name)); |
| 1001 |
|
| 1002 |
f->cs = cs; |
| 1003 |
f->loaded = false; |
| 1004 |
|
| 1005 |
return f; |
| 1006 |
} |
| 1007 |
|
| 1008 |
///////////////////////////////////////////////////////////////////////////// |
| 1009 |
|
| 1010 |
void |
| 1011 |
rxvt_fontset::add_fonts (const char *desc) |
| 1012 |
{ |
| 1013 |
if (desc) |
| 1014 |
{ |
| 1015 |
char buf[512]; |
| 1016 |
const char *end; |
| 1017 |
|
| 1018 |
do |
| 1019 |
{ |
| 1020 |
while (*desc <= ' ') desc++; |
| 1021 |
|
| 1022 |
if (*desc == '[') |
| 1023 |
{ |
| 1024 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
| 1025 |
|
| 1026 |
const char *extra = desc++; |
| 1027 |
|
| 1028 |
desc = strchr (desc, ']'); |
| 1029 |
|
| 1030 |
if (!desc) |
| 1031 |
{ |
| 1032 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
| 1033 |
break; |
| 1034 |
} |
| 1035 |
|
| 1036 |
desc++; |
| 1037 |
while (*desc <= ' ') desc++; |
| 1038 |
} |
| 1039 |
|
| 1040 |
end = strchr (desc, ','); |
| 1041 |
if (!end) |
| 1042 |
end = desc + strlen (desc); |
| 1043 |
|
| 1044 |
if (end - desc < 511) |
| 1045 |
{ |
| 1046 |
strncpy (buf, desc, end - desc); |
| 1047 |
buf[end - desc] = 0; |
| 1048 |
|
| 1049 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
| 1050 |
} |
| 1051 |
|
| 1052 |
desc = end + 1; |
| 1053 |
} |
| 1054 |
while (*end); |
| 1055 |
} |
| 1056 |
} |
| 1057 |
|
| 1058 |
bool |
| 1059 |
rxvt_fontset::realize_font (int i) |
| 1060 |
{ |
| 1061 |
if (fonts[i]->loaded) |
| 1062 |
return true; |
| 1063 |
|
| 1064 |
fonts[i]->loaded = true; |
| 1065 |
|
| 1066 |
if (!fonts[i]->load (base_prop)) |
| 1067 |
{ |
| 1068 |
fonts[i]->cs = CS_UNKNOWN; |
| 1069 |
return false; |
| 1070 |
} |
| 1071 |
|
| 1072 |
return true; |
| 1073 |
} |
| 1074 |
|
| 1075 |
void |
| 1076 |
rxvt_fontset::populate (const char *desc) |
| 1077 |
{ |
| 1078 |
clear (); |
| 1079 |
|
| 1080 |
fonts.push_back (new_font (0, CS_UNICODE)); |
| 1081 |
realize_font (0); |
| 1082 |
|
| 1083 |
add_fonts (desc); |
| 1084 |
|
| 1085 |
if (!base_id) |
| 1086 |
base_id = 1; |
| 1087 |
|
| 1088 |
// we currently need a base-font, no matter what |
| 1089 |
if (fonts.size () <= base_id || !realize_font (base_id)) |
| 1090 |
{ |
| 1091 |
add_fonts ("fixed"); |
| 1092 |
base_id = fonts.size () - 1; |
| 1093 |
} |
| 1094 |
|
| 1095 |
if (fonts.size () <= base_id || !realize_font (base_id)) |
| 1096 |
{ |
| 1097 |
fprintf (stderr, "unable to load a base font, please provide one using -fn fontname\n"); |
| 1098 |
exit (1); |
| 1099 |
} |
| 1100 |
|
| 1101 |
base_prop = fonts[base_id]->properties (); |
| 1102 |
} |
| 1103 |
|
| 1104 |
int |
| 1105 |
rxvt_fontset::find_font (uint32_t unicode) |
| 1106 |
{ |
| 1107 |
for (int i = 0; i < fonts.size (); i++) |
| 1108 |
{ |
| 1109 |
rxvt_font *f = fonts[i]; |
| 1110 |
|
| 1111 |
if (!f->loaded) |
| 1112 |
{ |
| 1113 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
| 1114 |
goto next_font; |
| 1115 |
|
| 1116 |
if (!realize_font (i)) |
| 1117 |
goto next_font; |
| 1118 |
} |
| 1119 |
|
| 1120 |
if (f->cs != CS_UNKNOWN && f->has_codepoint (unicode)) |
| 1121 |
return i; |
| 1122 |
|
| 1123 |
next_font: |
| 1124 |
if (i == fonts.size () - 1 && fallback->name) |
| 1125 |
{ |
| 1126 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
| 1127 |
fallback++; |
| 1128 |
i = 0; |
| 1129 |
} |
| 1130 |
} |
| 1131 |
|
| 1132 |
return 0; /* we must return SOME font */ |
| 1133 |
} |
| 1134 |
|
| 1135 |
|
| 1136 |
|
