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/*
Copyright (c) 1996-2007 Han The Thanh, <thanh@pdftex.org>
This file is part of pdfTeX.
pdfTeX 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.
pdfTeX 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 pdfTeX; if not, write to the Free Software Foundation, Inc., 51
Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
$Id: epdf.c 114 2007-05-23 18:23:49Z ms $
*/
#include "ptexlib.h"
#include <kpathsea/c-vararg.h>
#include <kpathsea/c-proto.h>
#include <string.h>
extern void epdf_check_mem(void);
extern void register_fd_entry(fd_entry *);
int is_subsetable(fm_entry * fm)
{
assert(is_included(fm));
return is_subsetted(fm);
}
fd_entry *epdf_create_fontdescriptor(fm_entry * fm)
{
fd_entry *fd;
if ((fd = lookup_fd_entry(fm->ff_name, fm->slant, fm->extend)) == NULL) {
fm->in_use = true;
fd = new_fd_entry();
fd->fm = fm;
register_fd_entry(fd);
fd->fd_objnum = pdfnewobjnum();
assert(fm->ps_name != NULL);
fd->fontname = xstrdup(fm->ps_name); /* just fallback */
/* preset_fontmetrics (fo->fd, f); */
fd->gl_tree = avl_create(comp_string_entry, NULL, &avl_xallocator);
assert(fd->gl_tree != NULL);
}
return fd;
}
integer get_fd_objnum(fd_entry * fd)
{
assert(fd->fd_objnum != 0);
return fd->fd_objnum;
}
integer get_fn_objnum(fd_entry * fd)
{
if (fd->fn_objnum == 0)
fd->fn_objnum = pdfnewobjnum();
return fd->fn_objnum;
}
/***********************************************************************
* Mark glyphs used by embedded PDF file:
* 1. build fontdescriptor, if not yet existing
* 2. mark glyphs directly there
*
* Input charset from xpdf is a string of glyph names including
* leading slashes, but without blanks between them, like: /a/b/c
***********************************************************************/
void epdf_mark_glyphs(fd_entry * fd, char *charset)
{
char *p, *q, *s;
char *glyph;
void **aa;
if (charset == NULL)
return;
assert(fd != NULL);
for (s = charset + 1, q = charset + strlen(charset); s < q; s = p + 1) {
for (p = s; *p != '\0' && *p != '/'; p++);
*p = '\0';
if ((char *) avl_find(fd->gl_tree, s) == NULL) {
glyph = xstrdup(s);
aa = avl_probe(fd->gl_tree, glyph);
assert(aa != NULL);
}
}
}
void embed_whole_font(fd_entry * fd)
{
fd->all_glyphs = true;
}
void epdf_free(void)
{
epdf_check_mem();
}
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