source: trunk/third/gtk2/gdk-pixbuf/queryloaders.c @ 18785

/* -*- mode: C; c-file-style: "linux" -*- */
/* GdkPixbuf library
 * queryloaders.c:
 *
 * Copyright (C) 2002 The Free Software Foundation
 * 
 * Author: Matthias Clasen <maclas@gmx.de>
 *
 * 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, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <config.h>

#include <glib.h>
#include <glib/gprintf.h>
#include <gmodule.h>

#include <errno.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#include "gdk-pixbuf/gdk-pixbuf.h"
#include "gdk-pixbuf/gdk-pixbuf-private.h"
#include "gdk-pixbuf/gdk-pixbuf-io.h"

#if USE_LA_MODULES
#define SOEXT ".la"
#else
#define SOEXT ("." G_MODULE_SUFFIX)
#endif
#define SOEXT_LEN (strlen (SOEXT))

static void
print_escaped (const char *str)
{
        gchar *tmp = g_strescape (str, "");
        g_printf ("\"%s\" ", tmp);
        g_free (tmp);
}

static void
query_module (const char *dir, const char *file)
{
        char *path;
        GModule *module;
        void                    (*fill_info)     (GdkPixbufFormat *info);
        void                    (*fill_vtable)   (GdkPixbufModule *module);
        char **mime; 
        char **ext; 
        const GdkPixbufModulePattern *pattern;

        if (g_path_is_absolute (dir)) 
                path = g_build_filename (dir, file, NULL);
        else {
                char *cwd = g_get_current_dir ();
                path = g_build_filename (cwd, dir, file, NULL);
                g_free (cwd);
        }              
        

        module = g_module_open (path, 0);
        if (module &&
            g_module_symbol (module, "fill_info", (gpointer *) &fill_info) &&
            g_module_symbol (module, "fill_vtable", (gpointer *) &fill_vtable)) {
                GdkPixbufFormat *info;
#ifdef G_OS_WIN32
                /* Replace backslashes in path with forward slashes, so that
                 * it reads in without problems.
                 */
                {
                        char *p = path;
                        while (*p) {
                                if (*p == '\\')
                                        *p = '/';
                                p++;
                        }
                }
#endif  
                g_printf("\"%s\"\n", path);
                info = g_new0 (GdkPixbufFormat, 1);
                (*fill_info) (info);
                g_printf ("\"%s\" %d \"%s\" \"%s\"\n", 
                       info->name, info->flags, 
                       info->domain ? info->domain : GETTEXT_PACKAGE, info->description);
                for (mime = info->mime_types; *mime; mime++) {
                        g_printf ("\"%s\" ", *mime);
                }
                g_printf ("\"\"\n");
                for (ext = info->extensions; *ext; ext++) {
                        g_printf ("\"%s\" ", *ext);
                }
                g_printf ("\"\"\n");
                for (pattern = info->signature; pattern->prefix; pattern++) {
                        print_escaped (pattern->prefix);
                        print_escaped (pattern->mask ? (const char *)pattern->mask : "");
                        g_printf ("%d\n", pattern->relevance);
                }
                g_printf ("\n");
                g_free (info);
        }
        else {
                g_fprintf (stderr, "Cannot load loader %s\n", path);
        }
        if (module)
                g_module_close (module);
        g_free (path);
}

int main (int argc, char **argv)
{
        gint i;

        g_printf ("# GdkPixbuf Image Loader Modules file\n"
                "# Automatically generated file, do not edit\n"
                "#\n");
  
        if (argc == 1) {
#ifdef USE_GMODULE
                const char *path;
                GDir *dir;
    
                path = g_getenv ("GDK_PIXBUF_MODULEDIR");
                if (path == NULL || *path == '\0')
                        path = PIXBUF_LIBDIR;

                g_printf ("# LoaderDir = %s\n#\n", path);

                dir = g_dir_open (path, 0, NULL);
                if (dir) {
                        const char *dent;

                        while ((dent = g_dir_read_name (dir))) {
                                gint len = strlen (dent);
                                if (len > SOEXT_LEN && 
                                    strcmp (dent + len - SOEXT_LEN, SOEXT) == 0) {
                                        query_module (path, dent);
                                }
                        }
                        g_dir_close (dir);
                }
#else
                g_printf ("# dynamic loading of modules not supported\n");
#endif
        }
        else {
                char *cwd = g_get_current_dir ();

                for (i = 1; i < argc; i++)
                        query_module (cwd, argv[i]);

                g_free (cwd);
        }

        return 0;
}