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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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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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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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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); |
264 |
|
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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 - 1) / 2, x2 = x + r->TermWin.fwidth - 1; |
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int y0 = y, y1 = y + (r->TermWin.fheight - 1) / 2, y2 = y + r->TermWin.fheight - 1; |
277 |
|
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XGCValues gcv; |
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|
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gcv.cap_style = CapButt; |
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XChangeGC (DISPLAY, GC, GCCapStyle, &gcv); |
282 |
|
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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; |
291 |
|
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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; |
298 |
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; |
301 |
case 'a': XDrawLine (DISPLAY, DRAWABLE, GC, x0, y2, x2, y0); break; |
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case 'b': XDrawLine (DISPLAY, DRAWABLE, GC, x0, y0, x2, y2); break; |
303 |
} |
304 |
} |
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|
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gcv.line_width = 0; |
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XChangeGC (DISPLAY, GC, GCLineWidth, &gcv); |
308 |
} |
309 |
else |
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switch (*text++) |
311 |
{ |
312 |
case NOCHAR: |
313 |
case ZERO_WIDTH_CHAR: |
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break; |
315 |
default: |
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XDrawRectangle (DISPLAY, DRAWABLE, GC, x + 2, y + 2, r->TermWin.fwidth - 5, r->TermWin.fheight - 5); |
317 |
} |
318 |
|
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x += r->TermWin.fwidth; |
320 |
} |
321 |
} |
322 |
|
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///////////////////////////////////////////////////////////////////////////// |
324 |
|
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struct rxvt_font_x11 : rxvt_font { |
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rxvt_font_x11 () { f = 0; } |
327 |
|
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void clear (); |
329 |
|
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bool load (int maxheight); |
331 |
|
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bool has_codepoint (uint32_t unicode); |
333 |
|
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void draw (int x, int y, |
335 |
const text_t *text, int len, |
336 |
int fg, int bg); |
337 |
|
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XFontStruct *f; |
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codeset cs; |
340 |
bool enc2b, encm; |
341 |
|
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const char *get_property (const char *property, const char *repl) const; |
343 |
}; |
344 |
|
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const char * |
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rxvt_font_x11::get_property (const char *property, const char *repl) const |
347 |
{ |
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unsigned long value; |
349 |
|
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if (XGetFontProperty (f, XInternAtom (DISPLAY, property, 0), &value)) |
351 |
return XGetAtomName (DISPLAY, value); |
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else |
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return repl; |
354 |
} |
355 |
|
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bool |
357 |
rxvt_font_x11::load (int maxheight) |
358 |
{ |
359 |
clear (); |
360 |
|
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f = XLoadQueryFont (DISPLAY, name); |
362 |
|
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if (!f) |
364 |
return false; |
365 |
|
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unsigned long value; |
367 |
|
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const char *registry = get_property ("CHARSET_REGISTRY", 0); |
369 |
const char *encoding = get_property ("CHARSET_ENCODING", 0); |
370 |
|
371 |
if (registry && encoding) |
372 |
{ |
373 |
char charset[64]; |
374 |
snprintf (charset, 64, "%s-%s", registry, encoding); |
375 |
|
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cs = codeset_from_name (charset); |
377 |
} |
378 |
else |
379 |
{ |
380 |
const char *charset = get_property ("FONT", 0); |
381 |
|
382 |
if (!charset) |
383 |
charset = name; |
384 |
|
385 |
int count = 13; |
386 |
while (*charset) |
387 |
if (*charset++ == '-' && !--count) |
388 |
break; |
389 |
|
390 |
cs = codeset_from_name (charset); |
391 |
} |
392 |
|
393 |
if (cs == CS_UNICODE) |
394 |
cs = CS_UNICODE_16; // X11 can have a max. of 65536 chars per font |
395 |
|
396 |
encm = f->min_byte1 != 0 || f->max_byte1 != 0; |
397 |
enc2b = encm || f->max_char_or_byte2 > 255; |
398 |
|
399 |
ascent = f->ascent; |
400 |
descent = f->descent; |
401 |
height = ascent + descent; |
402 |
|
403 |
prop = false; |
404 |
|
405 |
if (f->min_bounds.width == f->max_bounds.width) |
406 |
width = f->min_bounds.width; |
407 |
else if (f->per_char == NULL) |
408 |
width = f->max_bounds.width; |
409 |
else |
410 |
{ |
411 |
prop = true; |
412 |
|
413 |
int N = f->max_char_or_byte2 - f->min_char_or_byte2; |
414 |
|
415 |
if (encm) |
416 |
N += (f->max_byte1 - f->min_byte1) |
417 |
* (f->max_char_or_byte2 - f->min_char_or_byte2 + 1); |
418 |
|
419 |
while (N) |
420 |
{ |
421 |
if (f->per_char[N].width > width) |
422 |
width = f->per_char[N].width; |
423 |
|
424 |
--N; |
425 |
} |
426 |
} |
427 |
|
428 |
if (cs == CS_UNKNOWN) |
429 |
{ |
430 |
fprintf (stderr, "unable to deduce codeset, ignoring font '%s'\n", name); |
431 |
|
432 |
clear (); |
433 |
|
434 |
return false; |
435 |
} |
436 |
|
437 |
return true; |
438 |
} |
439 |
|
440 |
void |
441 |
rxvt_font_x11::clear () |
442 |
{ |
443 |
if (f) |
444 |
{ |
445 |
XFreeFont (DISPLAY, f); |
446 |
f = 0; |
447 |
} |
448 |
} |
449 |
|
450 |
bool |
451 |
rxvt_font_x11::has_codepoint (uint32_t unicode) |
452 |
{ |
453 |
uint32_t ch = FROM_UNICODE (cs, unicode); |
454 |
|
455 |
if (ch == NOCHAR) |
456 |
return false; |
457 |
|
458 |
/* check wether the character exists in _this_ font. horrible. */ |
459 |
XCharStruct *xcs; |
460 |
|
461 |
if (encm) |
462 |
{ |
463 |
int byte1 = ch >> 8; |
464 |
int byte2 = ch & 255; |
465 |
|
466 |
if (byte1 < f->min_byte1 || byte1 > f->max_byte1 |
467 |
|| byte2 < f->min_char_or_byte2 || byte2 > f->max_char_or_byte2) |
468 |
return false; |
469 |
|
470 |
if (!f->per_char) |
471 |
return true; |
472 |
|
473 |
int D = f->max_char_or_byte2 - f->min_char_or_byte2 + 1; |
474 |
int N = (byte1 - f->min_byte1) * D + byte2 - f->min_char_or_byte2; |
475 |
|
476 |
xcs = f->per_char + N; |
477 |
} |
478 |
else |
479 |
{ |
480 |
if (ch < f->min_char_or_byte2 || ch > f->max_char_or_byte2) |
481 |
return false; |
482 |
|
483 |
if (!f->per_char) |
484 |
return true; |
485 |
|
486 |
xcs = f->per_char + (ch - f->min_char_or_byte2); |
487 |
} |
488 |
|
489 |
if (xcs->lbearing == 0 && xcs->rbearing == 0 && xcs->width == 0 |
490 |
&& xcs->ascent == 0 && xcs->descent == 0) |
491 |
return false; |
492 |
|
493 |
return true; |
494 |
} |
495 |
|
496 |
void |
497 |
rxvt_font_x11::draw (int x, int y, |
498 |
const text_t *text, int len, |
499 |
int fg, int bg) |
500 |
{ |
501 |
// this looks like a mess /. |
502 |
// and it is a mess /. |
503 |
// yet we are trying to be perfect /. |
504 |
// but the result still isn't perfect /. |
505 |
|
506 |
bool slow = prop |
507 |
|| width != r->TermWin.fwidth |
508 |
|| height != r->TermWin.fheight; |
509 |
|
510 |
int base = r->TermWin.fbase; |
511 |
|
512 |
XGCValues v; |
513 |
v.foreground = r->PixColors[fg]; |
514 |
v.background = r->PixColors[bg]; |
515 |
v.font = f->fid; |
516 |
|
517 |
if (enc2b) |
518 |
{ |
519 |
const XChar2b *xc = enc_xchar2b (text, len, cs, slow); |
520 |
|
521 |
if (bg == Color_bg && !slow) |
522 |
{ |
523 |
XChangeGC (DISPLAY, GC, GCForeground | GCBackground | GCFont, &v); |
524 |
XDrawImageString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
525 |
} |
526 |
else |
527 |
{ |
528 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
529 |
|
530 |
XChangeGC (DISPLAY, GC, GCForeground | GCFont, &v); |
531 |
|
532 |
if (slow) |
533 |
{ |
534 |
do |
535 |
{ |
536 |
if (xc->byte1 || xc->byte2) |
537 |
XDrawString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, 1); |
538 |
|
539 |
x += r->TermWin.fwidth; |
540 |
xc++; len--; |
541 |
} |
542 |
while (len); |
543 |
} |
544 |
else |
545 |
XDrawString16 (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
546 |
} |
547 |
} |
548 |
else |
549 |
{ |
550 |
const char *xc = enc_char (text, len, cs, slow); |
551 |
|
552 |
if (bg == Color_bg && !slow) |
553 |
{ |
554 |
XChangeGC (DISPLAY, GC, GCForeground | GCBackground | GCFont, &v); |
555 |
XDrawImageString (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
556 |
} |
557 |
else |
558 |
{ |
559 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
560 |
|
561 |
XChangeGC (DISPLAY, GC, GCForeground | GCFont, &v); |
562 |
|
563 |
if (slow) |
564 |
{ |
565 |
do |
566 |
{ |
567 |
if (*xc) |
568 |
XDrawString (DISPLAY, DRAWABLE, GC, x, y + base, xc, 1); |
569 |
|
570 |
x += r->TermWin.fwidth; |
571 |
xc++; len--; |
572 |
} |
573 |
while (len); |
574 |
} |
575 |
else |
576 |
XDrawString (DISPLAY, DRAWABLE, GC, x, y + base, xc, len); |
577 |
} |
578 |
} |
579 |
} |
580 |
|
581 |
///////////////////////////////////////////////////////////////////////////// |
582 |
|
583 |
#if XFT |
584 |
#if 0 |
585 |
#define UNIBITS 21 |
586 |
//#define SWATHBITS (UNIBITS / 2 + 3) // minimum size for "full" tables |
587 |
#define SWATHBITS 8 |
588 |
#endif |
589 |
|
590 |
struct rxvt_font_xft : rxvt_font { |
591 |
#if 0 |
592 |
enum { |
593 |
SWATHCOUNT = 1 << (21 - UNIBITS), |
594 |
SWATHSIZE = 1 << (SWATHBITS - 5) |
595 |
}; |
596 |
typedef uint32_t swath[SWATHSIZE]; |
597 |
|
598 |
swath *cvr[SWATHCOUNT]; |
599 |
#endif |
600 |
|
601 |
#if 0 |
602 |
void gen_coverage_swath (unsigned int page); |
603 |
|
604 |
bool has_char (uint32_t ch) |
605 |
{ |
606 |
unsigned int page = ch >> SWATHBITS; |
607 |
unsigned int idx = ch & ((1 << SWATHBITS) - 1); |
608 |
|
609 |
if (page >= SWATHCOUNT) |
610 |
return false; |
611 |
|
612 |
if (!cvr[page]) gen_coverage_swath (page); |
613 |
|
614 |
return cvr[page][idx >> 5] & (1 << (idx & 31)); |
615 |
} |
616 |
#endif |
617 |
rxvt_font_xft () { f = 0; d = 0; } |
618 |
|
619 |
void clear (); |
620 |
|
621 |
bool load (int maxheight); |
622 |
|
623 |
void draw (int x, int y, |
624 |
const text_t *text, int len, |
625 |
int fg, int bg); |
626 |
|
627 |
bool has_codepoint (uint32_t unicode); |
628 |
|
629 |
protected: |
630 |
XftFont *f; |
631 |
XftDraw *d; |
632 |
|
633 |
#if 0 |
634 |
virtual void populate_coverage_swath (uint32_t lo, uint32_t hi) = 0; |
635 |
void set_swath (uint32_t ch) |
636 |
{ |
637 |
cvr[ch >> SWATHBITS] |= 1 << (ch & ((1 << SWATHBITS) - 1)); |
638 |
} |
639 |
#endif |
640 |
}; |
641 |
|
642 |
void |
643 |
rxvt_font_xft::clear () |
644 |
{ |
645 |
if (f) |
646 |
{ |
647 |
XftFontClose (DISPLAY, f); |
648 |
f = 0; |
649 |
} |
650 |
|
651 |
if (d) |
652 |
{ |
653 |
XftDrawDestroy (d); |
654 |
d = 0; |
655 |
} |
656 |
|
657 |
#if 0 |
658 |
for (int i = 0; i < SWATHCOUNT; i++) |
659 |
delete cvr[i]; |
660 |
#endif |
661 |
} |
662 |
|
663 |
bool |
664 |
rxvt_font_xft::load (int maxheight) |
665 |
{ |
666 |
#if 0 |
667 |
for (int i = 0; i < SWATHCOUNT; i++) |
668 |
cvr[i] = 0; |
669 |
#endif |
670 |
|
671 |
clear (); |
672 |
|
673 |
f = XftFontOpenName (DISPLAY, DefaultScreen (DISPLAY), name); |
674 |
|
675 |
if (!f) |
676 |
return false; |
677 |
|
678 |
FT_Face face = XftLockFace (f); |
679 |
|
680 |
prop = !FT_IS_FIXED_WIDTH (face); |
681 |
|
682 |
int ftheight = 0; |
683 |
|
684 |
for (;;) |
685 |
{ |
686 |
XGlyphInfo g1, g2; |
687 |
FcChar8 c; |
688 |
|
689 |
c = 'i'; XftTextExtents8 (DISPLAY, f, &c, 1, &g1); |
690 |
c = 'W'; XftTextExtents8 (DISPLAY, f, &c, 1, &g2); |
691 |
|
692 |
prop = prop || g1.xOff != g2.xOff; // don't simply trust the font |
693 |
|
694 |
width = g2.xOff; |
695 |
ascent = (face->size->metrics.ascender + 63) >> 6; |
696 |
descent = (-face->size->metrics.descender + 63) >> 6; |
697 |
height = ascent + descent; |
698 |
|
699 |
if (height <= maxheight || !maxheight) |
700 |
break; |
701 |
|
702 |
if (ftheight) |
703 |
{ |
704 |
// take smaller steps near the end |
705 |
if (height > maxheight + 1) ftheight++; |
706 |
if (height > maxheight + 2) ftheight++; |
707 |
if (height > maxheight + 3) ftheight++; |
708 |
|
709 |
FT_Set_Pixel_Sizes (face, 0, ftheight -= height - maxheight); |
710 |
} |
711 |
else |
712 |
FT_Set_Pixel_Sizes (face, 0, ftheight = maxheight); |
713 |
} |
714 |
|
715 |
XftUnlockFace (f); |
716 |
|
717 |
return true; |
718 |
} |
719 |
|
720 |
#if 0 |
721 |
void rxvt_font::gen_coverage_swath (unsigned int page) |
722 |
{ |
723 |
cvr[page] = new swath; |
724 |
|
725 |
for (int i = 0; i < SWATHSIZE; i++) |
726 |
cvr[page][i] = 0; |
727 |
|
728 |
populate_coverage_swath (cvr[page], page << SWATHBITS, ((page + 1) << SWATHBITS) - 1); |
729 |
} |
730 |
#endif |
731 |
|
732 |
bool |
733 |
rxvt_font_xft::has_codepoint (uint32_t unicode) |
734 |
{ |
735 |
return XftCharExists (DISPLAY, f, unicode); |
736 |
} |
737 |
|
738 |
void |
739 |
rxvt_font_xft::draw (int x, int y, |
740 |
const text_t *text, int len, |
741 |
int fg, int bg) |
742 |
{ |
743 |
if (!d) |
744 |
{ |
745 |
dR; |
746 |
d = XftDrawCreate (DISPLAY, DRAWABLE, XVISUAL, XCMAP); |
747 |
} |
748 |
|
749 |
if (bg >= 0 && bg != Color_bg) |
750 |
XftDrawRect (d, &r->PixColors[bg].c, x, y, r->TermWin.fwidth * len, r->TermWin.fheight); |
751 |
else |
752 |
clear_rect (x, y, r->TermWin.fwidth * len, r->TermWin.fheight, bg); |
753 |
|
754 |
if (!prop && width == r->TermWin.fwidth) |
755 |
{ |
756 |
if (sizeof (text_t) == sizeof (FcChar16)) |
757 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, len); |
758 |
else |
759 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, len); |
760 |
} |
761 |
else |
762 |
{ |
763 |
while (len) |
764 |
{ |
765 |
if (*text != NOCHAR && *text != ' ') |
766 |
{ |
767 |
if (sizeof (text_t) == sizeof (FcChar16)) |
768 |
XftDrawString16 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar16 *)text, 1); |
769 |
else |
770 |
XftDrawString32 (d, &r->PixColors[fg].c, f, x, y + r->TermWin.fbase, (const FcChar32 *)text, 1); |
771 |
} |
772 |
|
773 |
x += r->TermWin.fwidth; |
774 |
text++; |
775 |
len--; |
776 |
} |
777 |
} |
778 |
} |
779 |
#endif |
780 |
|
781 |
///////////////////////////////////////////////////////////////////////////// |
782 |
|
783 |
rxvt_fontset::rxvt_fontset (rxvt_t r) |
784 |
#ifdef EXPLICIT_CONTEXT |
785 |
: r(r) |
786 |
#endif |
787 |
{ |
788 |
clear (); |
789 |
} |
790 |
|
791 |
rxvt_fontset::~rxvt_fontset () |
792 |
{ |
793 |
clear (); |
794 |
} |
795 |
|
796 |
void |
797 |
rxvt_fontset::clear () |
798 |
{ |
799 |
for (rxvt_font **i = fonts.begin (); i != fonts.end(); i++) |
800 |
FONT_UNREF (*i); |
801 |
|
802 |
fonts.clear (); |
803 |
base_id = 0; |
804 |
height = 0x7fffffff; |
805 |
|
806 |
fallback = fallback_fonts; |
807 |
} |
808 |
|
809 |
rxvt_font * |
810 |
rxvt_fontset::new_font (const char *name, codeset cs) |
811 |
{ |
812 |
rxvt_font *f; |
813 |
|
814 |
if (!name || !*name) |
815 |
{ |
816 |
name = ""; |
817 |
f = new rxvt_font_default; |
818 |
} |
819 |
#if XFT |
820 |
else if (!strncmp (name, "xft:", 4)) |
821 |
{ |
822 |
name += 4; |
823 |
f = new rxvt_font_xft; |
824 |
} |
825 |
#endif |
826 |
else if (!strncmp (name, "x:", 2)) |
827 |
{ |
828 |
name += 2; |
829 |
f = new rxvt_font_x11; |
830 |
} |
831 |
else |
832 |
f = new rxvt_font_x11; |
833 |
|
834 |
f->set_term (r); |
835 |
f->set_name (strdup (name)); |
836 |
|
837 |
f->cs = cs; |
838 |
f->loaded = false; |
839 |
|
840 |
return f; |
841 |
} |
842 |
|
843 |
///////////////////////////////////////////////////////////////////////////// |
844 |
|
845 |
void |
846 |
rxvt_fontset::add_fonts (const char *desc) |
847 |
{ |
848 |
if (desc) |
849 |
{ |
850 |
char buf[512]; |
851 |
const char *end; |
852 |
|
853 |
do |
854 |
{ |
855 |
while (*desc <= ' ') desc++; |
856 |
|
857 |
if (*desc == '[') |
858 |
{ |
859 |
fprintf (stderr, "extra font parameters not yet supported, skipping.\n"); |
860 |
|
861 |
const char *extra = desc++; |
862 |
|
863 |
desc = strchr (desc, ']'); |
864 |
|
865 |
if (!desc) |
866 |
{ |
867 |
fprintf (stderr, "ERROR: opening '[' without closing ']' in font specification.\n"); |
868 |
break; |
869 |
} |
870 |
|
871 |
desc++; |
872 |
while (*desc <= ' ') desc++; |
873 |
} |
874 |
|
875 |
end = strchr (desc, ','); |
876 |
if (!end) |
877 |
end = desc + strlen (desc); |
878 |
|
879 |
if (end - desc < 511) |
880 |
{ |
881 |
strncpy (buf, desc, end - desc); |
882 |
buf[end - desc] = 0; |
883 |
|
884 |
fonts.push_back (new_font (buf, CS_UNICODE)); |
885 |
} |
886 |
|
887 |
desc = end + 1; |
888 |
} |
889 |
while (*end); |
890 |
} |
891 |
} |
892 |
|
893 |
bool |
894 |
rxvt_fontset::realize_font (int i) |
895 |
{ |
896 |
if (fonts[i]->loaded) |
897 |
return true; |
898 |
|
899 |
if (fonts[i]->load (height)) |
900 |
return fonts[i]->loaded = true; |
901 |
|
902 |
delete fonts[i]; |
903 |
fonts.erase (fonts.begin () + i); |
904 |
|
905 |
return false; |
906 |
} |
907 |
|
908 |
void |
909 |
rxvt_fontset::populate (const char *desc) |
910 |
{ |
911 |
clear (); |
912 |
|
913 |
fonts.push_back (new_font (0, CS_UNICODE)); |
914 |
realize_font (0); |
915 |
|
916 |
add_fonts (desc); |
917 |
|
918 |
if (!base_id) |
919 |
base_id = 1; |
920 |
|
921 |
// we currently need a base-font, no matter what |
922 |
if (fonts.size () <= base_id) |
923 |
{ |
924 |
add_fonts ("fixed"); |
925 |
base_id = 1; |
926 |
} |
927 |
|
928 |
if (fonts.size () <= base_id || !realize_font (base_id)) |
929 |
{ |
930 |
fprintf (stderr, "unable to load a base font, please provide one using -fn fontname\n"); |
931 |
exit (1); |
932 |
} |
933 |
|
934 |
height = fonts[base_id]->height; |
935 |
|
936 |
/*add_fonts ("-efont-fixed-medium-r-normal-*-14-*-*-*-*-*-iso10646-1,"*/ |
937 |
} |
938 |
|
939 |
int |
940 |
rxvt_fontset::find_font (uint32_t unicode) |
941 |
{ |
942 |
for (int i = 0; i < fonts.size (); i++) |
943 |
{ |
944 |
rxvt_font *f = fonts[i]; |
945 |
|
946 |
if (!f->loaded) |
947 |
{ |
948 |
if (FROM_UNICODE (f->cs, unicode) == NOCHAR) |
949 |
goto next_font; |
950 |
|
951 |
if (!realize_font (i)) |
952 |
{ |
953 |
--i; |
954 |
goto next_font; |
955 |
} |
956 |
|
957 |
//printf ("added font %s for %04lx\n", f->name, unicode); |
958 |
} |
959 |
|
960 |
if (f->has_codepoint (unicode)) |
961 |
return i; |
962 |
|
963 |
next_font: |
964 |
if (i == fonts.size () - 1 && fallback->name) |
965 |
{ |
966 |
fonts.push_back (new_font (fallback->name, fallback->cs)); |
967 |
fallback++; |
968 |
} |
969 |
} |
970 |
|
971 |
return 0; /* we must return SOME font */ |
972 |
} |
973 |
|
974 |
|
975 |
|