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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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#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" }, |
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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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struct rxvt_font_default : rxvt_font { |
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bool load (int maxheight) |
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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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|| (unicode >= 0x80 && unicode <= 0x9f)) |
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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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while (len--) |
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{ |
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switch (*text++) |
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{ |
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case NOCHAR: |
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case ZERO_WIDTH_CHAR: |
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break; |
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default: |
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XSetForeground (DISPLAY, GC, r->PixColors[fg]); |
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XDrawRectangle (DISPLAY, DRAWABLE, GC, x + 2, y + 2, r->TermWin.fwidth - 5, r->TermWin.fheight - 5); |
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} |
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|
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x += r->TermWin.fwidth; |
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} |
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} |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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struct rxvt_font_x11 : rxvt_font { |
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rxvt_font_x11 () { f = 0; } |
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|
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void clear (); |
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|
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bool load (int maxheight); |
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|
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bool has_codepoint (uint32_t unicode); |
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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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XFontStruct *f; |
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codeset cs; |
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bool enc2b, encm; |
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|
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const char *get_property (const char *property, const char *repl) const; |
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}; |
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|
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const char * |
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rxvt_font_x11::get_property (const char *property, const char *repl) const |
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{ |
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unsigned long value; |
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|
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if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
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return XGetAtomName (DISPLAY, value); |
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else |
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return repl; |
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} |
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|
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bool |
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rxvt_font_x11::load (int maxheight) |
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{ |
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clear (); |
262 |
|
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f = XLoadQueryFont (DISPLAY, name); |
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|
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if (!f) |
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return false; |
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|
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unsigned long value; |
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|
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const char *registry = get_property ("CHARSET_REGISTRY", 0); |
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const char *encoding = get_property ("CHARSET_ENCODING", 0); |
272 |
|
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if (registry && encoding) |
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{ |
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char charset[64]; |
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snprintf (charset, 64, "%s-%s", registry, encoding); |
277 |
|
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cs = codeset_from_name (charset); |
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} |
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else |
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{ |
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const char *charset = get_property ("FONT", 0); |
283 |
|
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if (!charset) |
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charset = name; |
286 |
|
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int count = 13; |
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while (*charset) |
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if (*charset++ == '-' && !--count) |
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break; |
291 |
|
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cs = codeset_from_name (charset); |
293 |
} |
294 |
|
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if (cs == CS_UNICODE) |
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cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
297 |
|
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encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
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enc2b = encm || f->max_char_or_byte2 > 255; |
300 |
|
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ascent = f->ascent; |
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descent = f->descent; |
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height = ascent + descent; |
304 |
|
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prop = false; |
306 |
|
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if (f->min_bounds.width == f->max_bounds.width) |
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width = f->min_bounds.width; |
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else if (f->per_char == NULL) |
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width = f->max_bounds.width; |
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else |
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{ |
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prop = true; |
314 |
|
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int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
316 |
|
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if (encm) |
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N += (f->max_byte1 - f->min_byte1) |
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* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
320 |
|
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while (N) |
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{ |
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if (f->per_char[N].width > width) |
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width = f->per_char[N].width; |
325 |
|
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--N; |
327 |
} |
328 |
} |
329 |
|
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if (cs == CS_UNKNOWN) |
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{ |
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fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
333 |
|
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clear (); |
335 |
|
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return false; |
337 |
} |
338 |
|
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return true; |
340 |
} |
341 |
|
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void |
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rxvt_font_x11::clear () |
344 |
{ |
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if (f) |
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{ |
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XFreeFont (DISPLAY, f); |
348 |
f = 0; |
349 |
} |
350 |
} |
351 |
|
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bool |
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rxvt_font_x11::has_codepoint (uint32_t unicode) |
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{ |
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uint32_t ch = FROM_UNICODE (cs, unicode); |
356 |
|
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if (ch == NOCHAR) |
358 |
return false; |
359 |
|
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/* check wether the character exists in _this_ font. horrible. */ |
361 |
XCharStruct *xcs; |
362 |
|
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if (encm) |
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{ |
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int byte1 = ch >> 8; |
366 |
int byte2 = ch & 255; |
367 |
|
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if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
369 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
370 |
return false; |
371 |
|
372 |
if (!f->per_char) |
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return true; |
374 |
|
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int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
376 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
377 |
|
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xcs = f->per_char + N; |
379 |
} |
380 |
else |
381 |
{ |
382 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
383 |
return false; |
384 |
|
385 |
if (!f->per_char) |
386 |
return true; |
387 |
|
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xcs = f->per_char + (ch - f->min_char_or_byte2); |
389 |
} |
390 |
|
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if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
392 |
&& xcs->ascent == 0 && xcs->descent == 0) |
393 |
return false; |
394 |
|
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return true; |
396 |
} |
397 |
|
398 |
void |
399 |
rxvt_font_x11::draw (int x, int y, |
400 |
const text_t *text, int len, |
401 |
int fg, int bg) |
402 |
{ |
403 |
// this looks like a mess /. |
404 |
// and it is a mess /. |
405 |
// yet we are trying to be perfect /. |
406 |
// but the result still isn't perfect /. |
407 |
|
408 |
bool slow = prop |
409 |
|| width != r->TermWin.fwidth |
410 |
|| height != r->TermWin.fheight; |
411 |
|
412 |
int base = r->TermWin.fbase; |
413 |
|
414 |
XGCValues v; |
415 |
v.foreground = r->PixColors[fg]; |
416 |
v.background = r->PixColors[bg]; |
417 |
v.font = f->fid; |
418 |
|
419 |
if (enc2b) |
420 |
{ |
421 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
422 |
|
423 |
if (bg == Color_bg && !slow) |
424 |
{ |
425 |
XChangeGC (DISPLAY, GC, GCForeground | GCBackground | GCFont, &v); |
426 |
XDrawImageString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
427 |
} |
428 |
else |
429 |
{ |
430 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
431 |
|
432 |
XChangeGC (DISPLAY, GC, GCForeground | GCFont, &v); |
433 |
|
434 |
if (slow) |
435 |
{ |
436 |
do |
437 |
{ |
438 |
if (xc->byte1 || xc->byte2) |
439 |
XDrawString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, 1); |
440 |
|
441 |
x += r->TermWin.fwidth; |
442 |
xc++; len--; |
443 |
} |
444 |
while (len); |
445 |
} |
446 |
else |
447 |
XDrawString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
448 |
} |
449 |
} |
450 |
else |
451 |
{ |
452 |
const char *xc = enc_char (text, len, cs, slow); |
453 |
|
454 |
if (bg == Color_bg && !slow) |
455 |
{ |
456 |
XChangeGC (DISPLAY, GC, GCForeground | GCBackground | GCFont, &v); |
457 |
XDrawImageString (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
458 |
} |
459 |
else |
460 |
{ |
461 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
462 |
|
463 |
XChangeGC (DISPLAY, GC, GCForeground | GCFont, &v); |
464 |
|
465 |
if (slow) |
466 |
{ |
467 |
do |
468 |
{ |
469 |
if (*xc) |
470 |
XDrawString (DISPLAY, DRAWABLE, GC, x, y + base, xc, 1); |
471 |
|
472 |
x += r->TermWin.fwidth; |
473 |
xc++; len--; |
474 |
} |
475 |
while (len); |
476 |
} |
477 |
else |
478 |
XDrawString (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
479 |
} |
480 |
} |
481 |
} |
482 |
|
483 |
///////////////////////////////////////////////////////////////////////////// |
484 |
|
485 |
#if XFT |
486 |
#if 0 |
487 |
#define UNIBITS 21 |
488 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
489 |
#define SWATHBITS 8 |
490 |
#endif |
491 |
|
492 |
struct rxvt_font_xft : rxvt_font { |
493 |
#if 0 |
494 |
enum { |
495 |
SWATHCOUNT = 1 << (21 - UNIBITS), |
496 |
SWATHSIZE = 1 << (SWATHBITS - 5) |
497 |
}; |
498 |
typedef uint32_t swath[SWATHSIZE]; |
499 |
|
500 |
swath *cvr[SWATHCOUNT]; |
501 |
#endif |
502 |
|
503 |
#if 0 |
504 |
void gen_coverage_swath (unsigned int page); |
505 |
|
506 |
bool has_char (uint32_t ch) |
507 |
{ |
508 |
unsigned int page = ch >> SWATHBITS; |
509 |
unsigned int idx = ch & ((1 << SWATHBITS) - 1); |
510 |
|
511 |
if (page >= SWATHCOUNT) |
512 |
return false; |
513 |
|
514 |
if (!cvr[page]) gen_coverage_swath (page); |
515 |
|
516 |
return cvr[page][idx >> 5] & (1 << (idx & 31)); |
517 |
} |
518 |
#endif |
519 |
rxvt_font_xft () { f = 0; d = 0; } |
520 |
|
521 |
void clear (); |
522 |
|
523 |
bool load (int maxheight); |
524 |
|
525 |
void draw (int x, int y, |
526 |
const text_t *text, int len, |
527 |
int fg, int bg); |
528 |
|
529 |
bool has_codepoint (uint32_t unicode); |
530 |
|
531 |
protected: |
532 |
XftFont *f; |
533 |
XftDraw *d; |
534 |
|
535 |
#if 0 |
536 |
virtual void populate_coverage_swath (uint32_t lo, uint32_t hi) = 0; |
537 |
void set_swath (uint32_t ch) |
538 |
{ |
539 |
cvr[ch >> SWATHBITS] |= 1 << (ch & ((1 << SWATHBITS) - 1)); |
540 |
} |
541 |
#endif |
542 |
}; |
543 |
|
544 |
void |
545 |
rxvt_font_xft::clear () |
546 |
{ |
547 |
if (f) |
548 |
{ |
549 |
XftFontClose (DISPLAY, f); |
550 |
f = 0; |
551 |
} |
552 |
|
553 |
if (d) |
554 |
{ |
555 |
XftDrawDestroy (d); |
556 |
d = 0; |
557 |
} |
558 |
|
559 |
#if 0 |
560 |
for (int i = 0; i < SWATHCOUNT; i++) |
561 |
delete cvr[i]; |
562 |
#endif |
563 |
} |
564 |
|
565 |
bool |
566 |
rxvt_font_xft::load (int maxheight) |
567 |
{ |
568 |
#if 0 |
569 |
for (int i = 0; i < SWATHCOUNT; i++) |
570 |
cvr[i] = 0; |
571 |
#endif |
572 |
|
573 |
clear (); |
574 |
|
575 |
f = XftFontOpenName (DISPLAY, DefaultScreen (DISPLAY), name); |
576 |
|
577 |
if (!f) |
578 |
return false; |
579 |
|
580 |
FT_Face face = XftLockFace (f); |
581 |
|
582 |
prop = !FT_IS_FIXED_WIDTH (face); |
583 |
|
584 |
int ftheight = 0; |
585 |
|
586 |
for (;;) |
587 |
{ |
588 |
XGlyphInfo g1, g2; |
589 |
FcChar8 c; |
590 |
|
591 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
592 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
593 |
|
594 |
prop = prop || g1.xOff != g2.xOff; // don't simply trust the font |
595 |
|
596 |
width = g2.xOff; |
597 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
598 |
descent = (-face->size->metrics.descender + 63) >> 6; |
599 |
height = ascent + descent; |
600 |
|
601 |
if (height <= maxheight || !maxheight) |
602 |
break; |
603 |
|
604 |
if (ftheight) |
605 |
{ |
606 |
// take smaller steps near the end |
607 |
if (height > maxheight + 1) ftheight++; |
608 |
if (height > maxheight + 2) ftheight++; |
609 |
if (height > maxheight + 3) ftheight++; |
610 |
|
611 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - maxheight); |
612 |
} |
613 |
else |
614 |
FT_Set_Pixel_Sizes (face, 0, ftheight = maxheight); |
615 |
} |
616 |
|
617 |
XftUnlockFace (f); |
618 |
|
619 |
return true; |
620 |
} |
621 |
|
622 |
#if 0 |
623 |
void rxvt_font::gen_coverage_swath (unsigned int page) |
624 |
{ |
625 |
cvr[page] = new swath; |
626 |
|
627 |
for (int i = 0; i < SWATHSIZE; i++) |
628 |
cvr[page][i] = 0; |
629 |
|
630 |
populate_coverage_swath (cvr[page], page << SWATHBITS, ((page + 1) << SWATHBITS) - 1); |
631 |
} |
632 |
#endif |
633 |
|
634 |
bool |
635 |
rxvt_font_xft::has_codepoint (uint32_t unicode) |
636 |
{ |
637 |
return XftCharExists (DISPLAY, f, unicode); |
638 |
} |
639 |
|
640 |
void |
641 |
rxvt_font_xft::draw (int x, int y, |
642 |
const text_t *text, int len, |
643 |
int fg, int bg) |
644 |
{ |
645 |
if (!d) |
646 |
{ |
647 |
dR; |
648 |
d = XftDrawCreate (DISPLAY, DRAWABLE, XVISUAL, XCMAP); |
649 |
} |
650 |
|
651 |
if (bg >= 0 && bg != Color_bg) |
652 |
XftDrawRect (d, &r->PixColors[bg].c, x, y, r->TermWin.fwidth * len, r->TermWin.fheight); |
653 |
else |
654 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
655 |
|
656 |
if (!prop && width == r->TermWin.fwidth) |
657 |
{ |
658 |
if (sizeof (text_t) == sizeof (FcChar16)) |
659 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
660 |
else |
661 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
662 |
} |
663 |
else |
664 |
{ |
665 |
while (len) |
666 |
{ |
667 |
if (*text != NOCHAR && *text != ' ') |
668 |
{ |
669 |
if (sizeof (text_t) == sizeof (FcChar16)) |
670 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
671 |
else |
672 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
673 |
} |
674 |
|
675 |
x += r->TermWin.fwidth; |
676 |
text++; |
677 |
len--; |
678 |
} |
679 |
} |
680 |
} |
681 |
#endif |
682 |
|
683 |
///////////////////////////////////////////////////////////////////////////// |
684 |
|
685 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
686 |
#ifdef EXPLICIT_CONTEXT |
687 |
: r(r) |
688 |
#endif |
689 |
{ |
690 |
clear (); |
691 |
} |
692 |
|
693 |
rxvt_fontset::~rxvt_fontset () |
694 |
{ |
695 |
clear (); |
696 |
} |
697 |
|
698 |
void |
699 |
rxvt_fontset::clear () |
700 |
{ |
701 |
for (rxvt_font **i = fonts.begin (); i != fonts.end(); i++) |
702 |
FONT_UNREF (*i); |
703 |
|
704 |
fonts.clear (); |
705 |
base_id = 0; |
706 |
height = 0x7fffffff; |
707 |
|
708 |
fallback = fallback_fonts; |
709 |
} |
710 |
|
711 |
rxvt_font * |
712 |
rxvt_fontset::new_font (const char *name, codeset cs) |
713 |
{ |
714 |
rxvt_font *f; |
715 |
|
716 |
if (!name || !*name) |
717 |
{ |
718 |
name = ""; |
719 |
f = new rxvt_font_default; |
720 |
} |
721 |
#if XFT |
722 |
else if (!strncmp (name, "xft:", 4)) |
723 |
{ |
724 |
name += 4; |
725 |
f = new rxvt_font_xft; |
726 |
} |
727 |
#endif |
728 |
else if (!strncmp (name, "x:", 2)) |
729 |
{ |
730 |
name += 2; |
731 |
f = new rxvt_font_x11; |
732 |
} |
733 |
else |
734 |
f = new rxvt_font_x11; |
735 |
|
736 |
f->set_term (r); |
737 |
f->set_name (strdup (name)); |
738 |
|
739 |
f->cs = cs; |
740 |
f->loaded = false; |
741 |
|
742 |
return f; |
743 |
} |
744 |
|
745 |
///////////////////////////////////////////////////////////////////////////// |
746 |
|
747 |
void |
748 |
rxvt_fontset::add_fonts (const char *desc) |
749 |
{ |
750 |
if (desc) |
751 |
{ |
752 |
char buf[512]; |
753 |
const char *end; |
754 |
|
755 |
do |
756 |
{ |
757 |
while (*desc <= ' ') desc++; |
758 |
|
759 |
if (*desc == '[') |
760 |
{ |
761 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
762 |
|
763 |
const char *extra = desc++; |
764 |
|
765 |
desc = strchr (desc, ']'); |
766 |
|
767 |
if (!desc) |
768 |
{ |
769 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
770 |
break; |
771 |
} |
772 |
|
773 |
desc++; |
774 |
while (*desc <= ' ') desc++; |
775 |
} |
776 |
|
777 |
end = strchr (desc, ','); |
778 |
if (!end) |
779 |
end = desc + strlen (desc); |
780 |
|
781 |
if (end - desc < 511) |
782 |
{ |
783 |
strncpy (buf, desc, end - desc); |
784 |
buf[end - desc] = 0; |
785 |
|
786 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
787 |
} |
788 |
|
789 |
desc = end + 1; |
790 |
} |
791 |
while (*end); |
792 |
} |
793 |
} |
794 |
|
795 |
bool |
796 |
rxvt_fontset::realize_font (int i) |
797 |
{ |
798 |
if (fonts[i]->loaded) |
799 |
return true; |
800 |
|
801 |
if (fonts[i]->load (height)) |
802 |
return fonts[i]->loaded = true; |
803 |
|
804 |
delete fonts[i]; |
805 |
fonts.erase (fonts.begin () + i); |
806 |
|
807 |
return false; |
808 |
} |
809 |
|
810 |
void |
811 |
rxvt_fontset::populate (const char *desc) |
812 |
{ |
813 |
clear (); |
814 |
|
815 |
fonts.push_back (new_font (0, CS_UNICODE)); |
816 |
realize_font (0); |
817 |
|
818 |
add_fonts (desc); |
819 |
|
820 |
if (!base_id) |
821 |
base_id = 1; |
822 |
|
823 |
// we currently need a base-font, no matter what |
824 |
if (fonts.size () <= base_id) |
825 |
{ |
826 |
add_fonts ("fixed"); |
827 |
base_id = 1; |
828 |
} |
829 |
|
830 |
if (fonts.size () <= base_id || !realize_font (base_id)) |
831 |
{ |
832 |
fprintf (stderr, "unable to load a base font, please provide one using -fn fontname\n"); |
833 |
exit (1); |
834 |
} |
835 |
|
836 |
height = fonts[base_id]->height; |
837 |
|
838 |
/*add_fonts ("-efont-fixed-medium-r-normal-*-14-*-*-*-*-*-iso10646-1,"*/ |
839 |
} |
840 |
|
841 |
int |
842 |
rxvt_fontset::find_font (uint32_t unicode) |
843 |
{ |
844 |
for (int i = 0; i < fonts.size (); i++) |
845 |
{ |
846 |
rxvt_font *f = fonts[i]; |
847 |
|
848 |
if (!f->loaded) |
849 |
{ |
850 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
851 |
goto next_font; |
852 |
|
853 |
if (!realize_font (i)) |
854 |
{ |
855 |
--i; |
856 |
goto next_font; |
857 |
} |
858 |
|
859 |
//printf ("added font %s for %04lx\n", f->name, unicode); |
860 |
} |
861 |
|
862 |
if (f->has_codepoint (unicode)) |
863 |
return i; |
864 |
|
865 |
next_font: |
866 |
if (i == fonts.size () - 1 && fallback->name) |
867 |
{ |
868 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
869 |
fallback++; |
870 |
} |
871 |
} |
872 |
|
873 |
return 0; /* we must return SOME font */ |
874 |
} |
875 |
|
876 |
|
877 |
|