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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* GnomePrint font-face wrapper
*
* Copyright (C) 2003 Filip Van Raemdonck <mechanix@debian.org>
* Martin Kretzschmar <m_kretzschmar@gmx.net>
*
* GPdf 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.
*
* GPdf 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.
*/
#include <aconf.h>
#ifdef HAVE_FONT_EMBEDDING
#include "gpdf-font-face.h"
#include <unistd.h>
static GObjectClass* parent_class;
static void gpdf_font_face_init (GPdfFontFace* gff) {}
static void
gpdf_font_face_finalize (GObject* object) {
GPdfFontFace* face = GPDF_FONT_FACE (object);
if (face->font_data) {
g_free (face->font_data);
face->font_data = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gpdf_font_face_class_init (GPdfFontFaceClass* klass) {
parent_class = g_type_class_peek_parent (klass);
G_OBJECT_CLASS (klass)->finalize = gpdf_font_face_finalize;
}
GType
gpdf_font_face_get_type (void) {
static GType gff_type = 0;
if (!gff_type) {
static const GTypeInfo gff_info = {
sizeof (GPdfFontFaceClass), NULL, NULL,
(GClassInitFunc) gpdf_font_face_class_init,
NULL, NULL, sizeof (GPdfFontFace), 0,
(GInstanceInitFunc) gpdf_font_face_init
};
gff_type = g_type_register_static (GNOME_TYPE_FONT_FACE, "GPdfFontFace", &gff_info, (GTypeFlags) 0);
}
return gff_type;
}
/* from /usr/share/misc/magic of debian's file 3.40 */
#define TRUETYPE_MAGIC "\000\001\000\000\000"
#define TRUETYPE_MAGIC_LENGTH 5
#define TYPE1_MAGIC "%!PS-AdobeFont-1."
#define TYPE1_MAGIC_LENGTH 17
static GPFontEntryType
gff_font_entry_type_from_data (const guchar* font_data, gsize length) {
if (length > TYPE1_MAGIC_LENGTH + 6
&& !memcmp (font_data + 6, TYPE1_MAGIC, TYPE1_MAGIC_LENGTH)) {
return GP_FONT_ENTRY_TYPE1; /* PFB */
} else if (length > TYPE1_MAGIC_LENGTH
&& !memcmp (font_data, TYPE1_MAGIC, TYPE1_MAGIC_LENGTH)) {
return GP_FONT_ENTRY_TYPE1; /* PFA */
} else if (length > TRUETYPE_MAGIC_LENGTH
&& !memcmp (font_data, TRUETYPE_MAGIC, TRUETYPE_MAGIC_LENGTH)) {
return GP_FONT_ENTRY_TRUETYPE;
}
return GP_FONT_ENTRY_UNKNOWN; /* else */
}
static gchar*
gff_write_temp_data_file (const guchar* font_data, gsize length) {
gint fd;
gchar* temp_name;
FILE* file;
size_t written;
fd = g_file_open_tmp ("gnome-print-XXXXXX", &temp_name, NULL);
if (fd <= -1) {
return NULL;
}
file = fdopen (fd, "wb");
written = fwrite (font_data, length, 1, file);
fclose (file);
if (written != 1) {
unlink (temp_name);
return NULL;
}
return temp_name;
}
static void
gff_entry_fill_in_face (GPFontEntry* e) {
GPdfFontFace* face;
g_return_if_fail (e->face == NULL);
face = g_object_new (GPDF_FONT_FACE_TYPE, NULL);
gp_font_entry_ref (e);
GNOME_FONT_FACE (face)->entry = e;
e->face = GNOME_FONT_FACE (face);
}
static void
gff_unlink_temp_file (gpointer data, GObject* object) {
unlink ((gchar*) data);
}
GnomeFontFace*
gpdf_font_face_download (const guchar* family, const guchar* species, GnomeFontWeight weight, gboolean italic, const guchar* font_data, gsize length) {
GPFontEntry* entry;
gchar* temp_fname;
GnomeFontFace* face;
g_return_val_if_fail (family != NULL, NULL);
g_return_val_if_fail (font_data != NULL, NULL);
g_return_val_if_fail (length > 0, NULL);
temp_fname = gff_write_temp_data_file (font_data, length);
if (temp_fname == NULL) {
g_warning ("Could not create temporary file for embedded font");
return NULL;
}
entry = g_new0 (GPFontEntry, 1);
entry->type = gff_font_entry_type_from_data (font_data, length);
entry->file = temp_fname;
entry->refcount = 1;
entry->face = NULL;
entry->speciesname = g_strdup (species
? species
: (const guchar*) "Regular");
entry->Weight = weight;
entry->familyname = g_strdup (family);
entry->name = g_strconcat (family, " ", entry->speciesname, NULL);
entry->italic_angle = italic ? -15 : 0;
entry->is_alias = FALSE;
gff_entry_fill_in_face (entry);
face = entry->face;
GPDF_FONT_FACE (face)->is_downloaded = TRUE;
GPDF_FONT_FACE (face)->font_data = g_memdup (font_data, length);
GPDF_FONT_FACE (face)->data_length = length;
g_object_weak_ref (G_OBJECT (face), gff_unlink_temp_file, temp_fname);
return face;
}
#endif
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