Simplify image format selection on save.

[evince.git] / shell / ev-utils.c

diff --git a/shell/ev-utils.c b/shell/ev-utils.c
index 3e5c203f5d89758b41063baafd296b66fdb8180a..42d81f9b8be8c1b0ce3e4b07f48a6e361ed7b615 100644 (file)
--- a/shell/ev-utils.c
+++ b/shell/ev-utils.c
@@ -25,6 +25,7 @@
 
 #include <string.h>
 #include <math.h>
+#include <glib/gi18n.h>
 
 #define PRINT_CONFIG_FILENAME  "ev-print-config.xml"
 
@@ -410,3 +411,86 @@ get_screen_dpi (GtkWindow *window)
        return (xdpi + ydpi) / 2.0;
 }
 
+
+void           
+file_chooser_dialog_add_writable_pixbuf_formats (GtkFileChooser *chooser)
+{
+       GSList *pixbuf_formats = NULL;
+       GSList *iter;
+       GtkFileFilter *filter;
+       int i;
+  
+       filter = gtk_file_filter_new();
+       gtk_file_filter_set_name (filter, _("By extension"));
+       g_object_set_data (G_OBJECT(filter), "pixbuf-format", NULL);
+       gtk_file_chooser_add_filter (chooser, filter);
+
+       pixbuf_formats = gdk_pixbuf_get_formats ();
+
+       for (iter = pixbuf_formats; iter; iter = iter->next) {
+               GdkPixbufFormat *format = iter->data;
+
+               gchar *description, *name, *extensions;
+               gchar **extension_list, **mime_types;
+
+               if (gdk_pixbuf_format_is_disabled (format) ||
+                   !gdk_pixbuf_format_is_writable (format))
+                           continue;
+
+               name = gdk_pixbuf_format_get_description (format);
+               extension_list = gdk_pixbuf_format_get_extensions (format);
+               extensions = g_strjoinv (", ", extension_list);
+               g_strfreev (extension_list);
+               description = g_strdup_printf ("%s (%s)", name, extensions);
+
+               filter = gtk_file_filter_new ();
+               gtk_file_filter_set_name (filter, description);
+               g_object_set_data (G_OBJECT (filter), "pixbuf-format", format);
+               gtk_file_chooser_add_filter (chooser, filter);
+
+               g_free (description);
+               g_free (extensions);
+               g_free (name);
+
+               mime_types = gdk_pixbuf_format_get_mime_types (format);
+               for (i = 0; mime_types[i] != 0; i++)
+                       gtk_file_filter_add_mime_type (filter, mime_types[i]);
+               g_strfreev (mime_types);
+       }
+
+       g_slist_free (pixbuf_formats);
+}
+
+GdkPixbufFormat*
+get_gdk_pixbuf_format_by_extension (gchar *uri)
+{
+       GSList *pixbuf_formats = NULL;
+       GSList *iter;
+       int i;
+
+       pixbuf_formats = gdk_pixbuf_get_formats ();
+
+       for (iter = pixbuf_formats; iter; iter = iter->next) {
+               gchar **extension_list;
+               GdkPixbufFormat *format = iter->data;
+               
+               if (gdk_pixbuf_format_is_disabled (format) ||
+                   !gdk_pixbuf_format_is_writable (format))
+                           continue;
+
+               extension_list = gdk_pixbuf_format_get_extensions (format);
+
+               for (i = 0; extension_list[i] != 0; i++) {
+                       if (g_str_has_suffix (uri, extension_list[i])) {
+                               g_slist_free (pixbuf_formats);
+                               g_strfreev (extension_list);
+                               return format;
+                       }
+               }
+               g_strfreev (extension_list);
+       }
+
+       g_slist_free (pixbuf_formats);
+       return NULL;
+}
+