412 lines
12 KiB
C
412 lines
12 KiB
C
/* font.c -- Eterm font module
|
|
*
|
|
* This file is original work by Michael Jennings <mej@eterm.org> and
|
|
* Tuomo Venalainen <vendu@cc.hut.fi>. This file, and any other file
|
|
* bearing this same message or a similar one, is distributed under
|
|
* the GNU Public License (GPL) as outlined in the COPYING file.
|
|
*
|
|
* Copyright (C) 1997-1999, Michael Jennings and Tuomo Venalainen
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
*/
|
|
|
|
static const char cvs_ident[] = "$Id$";
|
|
|
|
#include "config.h"
|
|
#include "feature.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
|
|
#include "../libmej/debug.h"
|
|
#include "../libmej/mem.h"
|
|
#include "../libmej/strings.h"
|
|
#include "debug.h"
|
|
#include "command.h"
|
|
#include "font.h"
|
|
#include "startup.h"
|
|
#include "options.h"
|
|
#include "screen.h"
|
|
#include "term.h"
|
|
#include "windows.h"
|
|
|
|
unsigned char font_change_count = 0;
|
|
#ifdef MULTI_CHARSET
|
|
const char *def_mfontName[] = {MFONT0, MFONT1, MFONT2, MFONT3, MFONT4};
|
|
#endif
|
|
const char *def_fontName[] = {FONT0, FONT1, FONT2, FONT3, FONT4};
|
|
|
|
static etfont_t *font_cache = NULL, *cur_font = NULL;
|
|
static void font_cache_add(const char *name, unsigned char type, void *info);
|
|
static void font_cache_del(const void *info);
|
|
static etfont_t *font_cache_find(const char *name, unsigned char type);
|
|
static void *font_cache_find_info(const char *name, unsigned char type);
|
|
|
|
static void
|
|
font_cache_add(const char *name, unsigned char type, void *info) {
|
|
|
|
etfont_t *font;
|
|
|
|
D_FONT(("font_cache_add(%s, %d, 0x%08x) called.\n", NONULL(name), type, (int) info));
|
|
|
|
font = (etfont_t *) MALLOC(sizeof(etfont_t));
|
|
font->name = StrDup(name);
|
|
font->type = type;
|
|
font->ref_cnt = 1;
|
|
switch (type) {
|
|
case FONT_TYPE_X: font->fontinfo.xfontinfo = (XFontStruct *) info; break;
|
|
case FONT_TYPE_TTF: break;
|
|
case FONT_TYPE_FNLIB: break;
|
|
default: break;
|
|
}
|
|
|
|
if (font_cache == NULL) {
|
|
font_cache = cur_font = font;
|
|
font->next = NULL;
|
|
} else {
|
|
cur_font->next = font;
|
|
font->next = NULL;
|
|
cur_font = font;
|
|
}
|
|
}
|
|
|
|
static void
|
|
font_cache_del(const void *info) {
|
|
|
|
etfont_t *current, *tmp;
|
|
|
|
D_FONT(("font_cache_del(0x%08x) called.\n", (int) info));
|
|
|
|
if (font_cache == NULL) {
|
|
return;
|
|
}
|
|
if (((font_cache->type == FONT_TYPE_X) && (font_cache->fontinfo.xfontinfo == (XFontStruct *) info))) {
|
|
D_FONT((" -> Match found at font_cache (0x%08x). Font name is \"%s\"\n", (int) font_cache, NONULL(font_cache->name)));
|
|
if (--(font_cache->ref_cnt) == 0) {
|
|
D_FONT((" -> Reference count is now 0. Deleting from cache.\n"));
|
|
current = font_cache;
|
|
font_cache = current->next;
|
|
XFreeFont(Xdisplay, (XFontStruct *) info);
|
|
FREE(current->name);
|
|
FREE(current);
|
|
} else {
|
|
D_FONT((" -> Reference count is %d. Returning.\n", font_cache->ref_cnt));
|
|
}
|
|
return;
|
|
} else if ((font_cache->type == FONT_TYPE_TTF) && (0)) {
|
|
} else if ((font_cache->type == FONT_TYPE_FNLIB) && (0)) {
|
|
} else {
|
|
for (current = font_cache; current->next; current = current->next) {
|
|
if (((current->next->type == FONT_TYPE_X) && (current->next->fontinfo.xfontinfo == (XFontStruct *) info))) {
|
|
D_FONT((" -> Match found at current->next (0x%08x, current == 0x%08x). Font name is \"%s\"\n", (int) current->next, (int) current, NONULL(current->next->name)));
|
|
if (--(current->next->ref_cnt) == 0) {
|
|
D_FONT((" -> Reference count is now 0. Deleting from cache.\n"));
|
|
tmp = current->next;
|
|
current->next = current->next->next;
|
|
XFreeFont(Xdisplay, (XFontStruct *) info);
|
|
FREE(tmp->name);
|
|
FREE(tmp);
|
|
} else {
|
|
D_FONT((" -> Reference count is %d. Returning.\n", font_cache->ref_cnt));
|
|
}
|
|
return;
|
|
} else if ((current->next->type == FONT_TYPE_TTF) && (0)) {
|
|
} else if ((current->next->type == FONT_TYPE_FNLIB) && (0)) {
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static etfont_t *
|
|
font_cache_find(const char *name, unsigned char type) {
|
|
|
|
etfont_t *current;
|
|
|
|
ASSERT_RVAL(name != NULL, NULL);
|
|
|
|
D_FONT(("font_cache_find(%s, %d) called.\n", NONULL(name), type));
|
|
|
|
for (current = font_cache; current; current = current->next) {
|
|
D_FONT((" -> Checking current (0x%08x), type == %d, name == %s\n", current, current->type, NONULL(current->name)));
|
|
if ((current->type == type) && !strcasecmp(current->name, name)) {
|
|
D_FONT((" -> Match!\n"));
|
|
return (current);
|
|
}
|
|
}
|
|
D_FONT(("font_cache_find(): No matches found. =(\n"));
|
|
return ((etfont_t *) NULL);
|
|
}
|
|
|
|
static void *
|
|
font_cache_find_info(const char *name, unsigned char type) {
|
|
|
|
etfont_t *current;
|
|
|
|
ASSERT_RVAL(name != NULL, NULL);
|
|
|
|
D_FONT(("font_cache_find_info(%s, %d) called.\n", NONULL(name), type));
|
|
|
|
for (current = font_cache; current; current = current->next) {
|
|
D_FONT((" -> Checking current (0x%08x), type == %d, name == %s\n", current, current->type, NONULL(current->name)));
|
|
if ((current->type == type) && !strcasecmp(current->name, name)) {
|
|
D_FONT((" -> Match!\n"));
|
|
switch (type) {
|
|
case FONT_TYPE_X: return ((void *) current->fontinfo.xfontinfo); break;
|
|
case FONT_TYPE_TTF: return (NULL); break;
|
|
case FONT_TYPE_FNLIB: return (NULL); break;
|
|
default: return (NULL); break;
|
|
}
|
|
}
|
|
}
|
|
D_FONT(("font_cache_find_info(): No matches found. =(\n"));
|
|
return (NULL);
|
|
}
|
|
|
|
void *
|
|
load_font(const char *name, const char *fallback, unsigned char type)
|
|
{
|
|
|
|
etfont_t *font;
|
|
XFontStruct *xfont;
|
|
|
|
D_FONT(("load_font(%s, %s, %d) called.\n", NONULL(name), NONULL(fallback), type));
|
|
|
|
if (type == 0) {
|
|
type = FONT_TYPE_X;
|
|
}
|
|
if (name == NULL) {
|
|
if (fallback) {
|
|
name = fallback;
|
|
fallback = "fixed";
|
|
} else {
|
|
name = "fixed";
|
|
fallback = "-misc-fixed-medium-r-normal--13-120-75-75-c-60-iso8859-1";
|
|
}
|
|
} else if (fallback == NULL) {
|
|
fallback = "fixed";
|
|
}
|
|
D_FONT((" -> Using name == \"%s\" and fallback == \"%s\"\n", name, fallback));
|
|
|
|
if ((font = font_cache_find(name, type)) != NULL) {
|
|
font_cache_add_ref(font);
|
|
D_FONT((" -> Font found in cache. Incrementing reference count to %d and returning existing data.\n", font->ref_cnt));
|
|
switch (type) {
|
|
case FONT_TYPE_X: return ((void *) font->fontinfo.xfontinfo); break;
|
|
case FONT_TYPE_TTF: return (NULL); break;
|
|
case FONT_TYPE_FNLIB: return (NULL); break;
|
|
default: return (NULL); break;
|
|
}
|
|
}
|
|
if (type == FONT_TYPE_X) {
|
|
if ((xfont = XLoadQueryFont(Xdisplay, name)) == NULL) {
|
|
print_error("Unable to load font \"%s\". Falling back on \"%s\"\n", name, fallback);
|
|
if ((xfont = XLoadQueryFont(Xdisplay, fallback)) == NULL) {
|
|
fatal_error("Couldn't load the fallback font either. Giving up.");
|
|
} else {
|
|
font_cache_add(fallback, type, (void *) xfont);
|
|
}
|
|
} else {
|
|
font_cache_add(name, type, (void *) xfont);
|
|
}
|
|
return ((void *) xfont);
|
|
} else if (type == FONT_TYPE_TTF) {
|
|
return (NULL);
|
|
} else if (type == FONT_TYPE_FNLIB) {
|
|
return (NULL);
|
|
}
|
|
ASSERT_NOTREACHED_RVAL(NULL);
|
|
}
|
|
|
|
void
|
|
free_font(const void *info)
|
|
{
|
|
|
|
ASSERT(info != NULL);
|
|
|
|
font_cache_del(info);
|
|
}
|
|
|
|
void
|
|
change_font(int init, const char *fontname)
|
|
{
|
|
#ifndef NO_BOLDFONT
|
|
static XFontStruct *boldFont = NULL;
|
|
#endif
|
|
static short fnum = FONT0_IDX;
|
|
short idx = 0;
|
|
int fh, fw = 0;
|
|
register unsigned long i;
|
|
register int cw;
|
|
|
|
if (!init) {
|
|
ASSERT(fontname != NULL);
|
|
|
|
switch (fontname[0]) {
|
|
case '\0':
|
|
fnum = FONT0_IDX;
|
|
fontname = NULL;
|
|
break;
|
|
|
|
/* special (internal) prefix for font commands */
|
|
case FONT_CMD:
|
|
idx = atoi(fontname + 1);
|
|
switch (fontname[1]) {
|
|
case '+': /* corresponds to FONT_UP */
|
|
fnum += (idx ? idx : 1);
|
|
fnum = FNUM_RANGE(fnum);
|
|
break;
|
|
|
|
case '-': /* corresponds to FONT_DN */
|
|
fnum += (idx ? idx : -1);
|
|
fnum = FNUM_RANGE(fnum);
|
|
break;
|
|
|
|
default:
|
|
if (fontname[1] != '\0' && !isdigit(fontname[1]))
|
|
return;
|
|
if (idx < 0 || idx >= (NFONTS))
|
|
return;
|
|
fnum = IDX2FNUM(idx);
|
|
break;
|
|
}
|
|
fontname = NULL;
|
|
break;
|
|
|
|
default:
|
|
for (idx = 0; idx < NFONTS; idx++) {
|
|
if (!strcmp(rs_font[idx], fontname)) {
|
|
fnum = IDX2FNUM(idx);
|
|
fontname = NULL;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
idx = FNUM2IDX(fnum);
|
|
|
|
if ((fontname != NULL) && strcasecmp(rs_font[idx], fontname)) {
|
|
RESET_AND_ASSIGN(rs_font[idx], StrDup(fontname));
|
|
}
|
|
}
|
|
if (TermWin.font) {
|
|
if (font_cache_find_info(rs_font[idx], FONT_TYPE_X) != TermWin.font) {
|
|
free_font(TermWin.font);
|
|
TermWin.font = load_font(rs_font[idx], "fixed", FONT_TYPE_X);
|
|
}
|
|
} else {
|
|
TermWin.font = load_font(rs_font[idx], "fixed", FONT_TYPE_X);
|
|
}
|
|
|
|
#ifndef NO_BOLDFONT
|
|
if (init && rs_boldFont != NULL) {
|
|
boldFont = load_font(rs_boldFont, "-misc-fixed-bold-r-semicondensed--13-120-75-75-c-60-iso8859-1", FONT_TYPE_X);
|
|
}
|
|
#endif
|
|
|
|
#ifdef MULTI_CHARSET
|
|
if (TermWin.mfont) {
|
|
if (font_cache_find_info(rs_mfont[idx], FONT_TYPE_X) != TermWin.mfont) {
|
|
free_font(TermWin.mfont);
|
|
TermWin.mfont = load_font(rs_mfont[idx], "k14", FONT_TYPE_X);
|
|
}
|
|
} else {
|
|
TermWin.mfont = load_font(rs_mfont[idx], "k14", FONT_TYPE_X);
|
|
}
|
|
# ifdef USE_XIM
|
|
if (Input_Context) {
|
|
if (TermWin.fontset) {
|
|
XFreeFontSet(Xdisplay, TermWin.fontset);
|
|
}
|
|
TermWin.fontset = create_fontset(rs_font[idx], rs_mfont[idx]);
|
|
xim_set_fontset();
|
|
}
|
|
# endif
|
|
#endif /* MULTI_CHARSET */
|
|
|
|
if (!init) {
|
|
XSetFont(Xdisplay, TermWin.gc, TermWin.font->fid);
|
|
}
|
|
|
|
fw = TermWin.font->min_bounds.width;
|
|
fh = TermWin.font->ascent + TermWin.font->descent + rs_line_space;
|
|
|
|
D_FONT(("Font information: Ascent == %hd, Descent == %hd\n", TermWin.font->ascent, TermWin.font->descent));
|
|
if (TermWin.font->min_bounds.width == TermWin.font->max_bounds.width)
|
|
TermWin.fprop = 0; /* Mono-spaced (fixed width) font */
|
|
else
|
|
TermWin.fprop = 1; /* Proportional font */
|
|
if (TermWin.fprop == 1)
|
|
for (i = TermWin.font->min_char_or_byte2; i <= TermWin.font->max_char_or_byte2; i++) {
|
|
cw = TermWin.font->per_char[i].width;
|
|
MAX_IT(fw, cw);
|
|
}
|
|
/* not the first time thru and sizes haven't changed */
|
|
if (fw == TermWin.fwidth && fh == TermWin.fheight)
|
|
return; /* TODO: not return; check MULTI_CHARSET if needed */
|
|
|
|
TermWin.fwidth = fw;
|
|
TermWin.fheight = fh;
|
|
|
|
/* check that size of boldFont is okay */
|
|
#ifndef NO_BOLDFONT
|
|
TermWin.boldFont = NULL;
|
|
if (boldFont != NULL) {
|
|
|
|
fw = boldFont->min_bounds.width;
|
|
fh = boldFont->ascent + boldFont->descent + rs_line_space;
|
|
if (TermWin.fprop == 0) { /* bold font must also be monospaced */
|
|
if (fw != boldFont->max_bounds.width)
|
|
fw = -1;
|
|
} else {
|
|
for (i = 0; i < 256; i++) {
|
|
if (!isprint(i))
|
|
continue;
|
|
cw = boldFont->per_char[i].width;
|
|
MAX_IT(fw, cw);
|
|
}
|
|
}
|
|
|
|
if (fw == TermWin.fwidth && fh == TermWin.fheight) {
|
|
TermWin.boldFont = boldFont;
|
|
}
|
|
}
|
|
#endif /* NO_BOLDFONT */
|
|
|
|
set_colorfgbg();
|
|
|
|
TermWin.width = TermWin.ncol * TermWin.fwidth;
|
|
TermWin.height = TermWin.nrow * TermWin.fheight;
|
|
|
|
szHint.width_inc = TermWin.fwidth;
|
|
szHint.height_inc = TermWin.fheight;
|
|
|
|
szHint.min_width = szHint.base_width + szHint.width_inc;
|
|
szHint.min_height = szHint.base_height + szHint.height_inc;
|
|
|
|
szHint.width = szHint.base_width + TermWin.width;
|
|
szHint.height = szHint.base_height + TermWin.height;
|
|
|
|
szHint.flags = PMinSize | PResizeInc | PBaseSize | PWinGravity;
|
|
|
|
if (!init) {
|
|
font_change_count++;
|
|
resize();
|
|
}
|
|
return;
|
|
}
|