Learning_GTK4_tree/tools/encodesymbolic.c

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/* encodesymbolic.c
* Copyright (C) 2014 Alexander Larsson <alexl@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <glib.h>
#include <gdk/gdk.h>
#include <glib/gi18n.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef G_OS_WIN32
#include <io.h>
#endif
#include <errno.h>
#include <stdlib.h>
#include <locale.h>
#include "gdktextureutilsprivate.h"
static char *output_dir = NULL;
static gboolean debug;
static GOptionEntry args[] = {
{ "output", 'o', 0, G_OPTION_ARG_FILENAME, &output_dir, N_("Output to this directory instead of cwd"), NULL },
{ "debug", 0, 0, G_OPTION_ARG_NONE, &debug, N_("Generate debug output") },
{ NULL }
};
int
main (int argc, char **argv)
{
char *path, *basename, *pngpath, *pngfile, *dot;
GOptionContext *context;
GdkPixbuf *symbolic;
GError *error;
int width, height;
char **sizev;
GFileOutputStream *out;
GFile *dest;
char *data;
gsize len;
setlocale (LC_ALL, "");
bindtextdomain (GETTEXT_PACKAGE, GTK_LOCALEDIR);
#ifdef HAVE_BIND_TEXTDOMAIN_CODESET
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
#endif
g_set_prgname ("gtk-encode-symbolic-svg");
context = g_option_context_new ("[OPTION…] PATH WIDTHxHEIGHT");
g_option_context_add_main_entries (context, args, GETTEXT_PACKAGE);
g_option_context_parse (context, &argc, &argv, NULL);
if (argc < 3)
{
g_printerr ("%s\n", g_option_context_get_help (context, FALSE, NULL));
return 1;
}
width = 0;
height = 0;
sizev = g_strsplit (argv[2], "x", 0);
if (g_strv_length (sizev) == 2)
{
width = atoi(sizev[0]);
height = atoi(sizev[1]);
}
g_strfreev (sizev);
if (width == 0 || height == 0)
{
g_printerr (_("Invalid size %s\n"), argv[2]);
return 1;
}
path = argv[1];
#ifdef G_OS_WIN32
path = g_locale_to_utf8 (path, -1, NULL, NULL, NULL);
#endif
error = NULL;
if (!g_file_get_contents (path, &data, &len, &error))
{
g_printerr (_("Cant load file: %s\n"), error->message);
return 1;
}
basename = g_path_get_basename (path);
symbolic = gtk_make_symbolic_pixbuf_from_data (data, len, width, height, 1.0, debug ? basename : NULL, &error);
if (symbolic == NULL)
{
g_printerr (_("Cant load file: %s\n"), error->message);
return 1;
}
g_free (data);
dot = strrchr (basename, '.');
if (dot != NULL)
*dot = 0;
pngfile = g_strconcat (basename, ".symbolic.png", NULL);
g_free (basename);
if (output_dir != NULL)
pngpath = g_build_filename (output_dir, pngfile, NULL);
else
pngpath = g_strdup (pngfile);
g_free (pngfile);
dest = g_file_new_for_path (pngpath);
out = g_file_replace (dest,
NULL, FALSE,
G_FILE_CREATE_REPLACE_DESTINATION,
NULL, &error);
if (out == NULL)
{
g_printerr (_("Cant save file %s: %s\n"), pngpath, error->message);
return 1;
}
if (!gdk_pixbuf_save_to_stream (symbolic, G_OUTPUT_STREAM (out), "png", NULL, &error, NULL))
{
g_printerr (_("Cant save file %s: %s\n"), pngpath, error->message);
return 1;
}
if (!g_output_stream_close (G_OUTPUT_STREAM (out), NULL, &error))
{
g_printerr (_("Cant close stream"));
return 1;
}
g_object_unref (out);
g_free (pngpath);
return 0;
}