[gnac/gnac-video] Prevent warnings when no font is set in gconf.

[Benoît Dupasquier <bdupasqu src gnome org>]

commit 53403561c1fdf6e037f20bec62ec153c59651cfa
Author: Benoît Dupasquier <bdupasqu src gnome org>
Date:   Wed Aug 19 09:26:42 2009 +0200

    Prevent warnings when no font is set in gconf.

 src/gnac-prefs.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/src/gnac-prefs.c b/src/gnac-prefs.c
index d9265c9..10b04ee 100644
--- a/src/gnac-prefs.c
+++ b/src/gnac-prefs.c
@@ -153,6 +153,7 @@ gnac_prefs_gconf_retrieve(void)
   GtkFontButton *font_button;
   GtkComboBox *combo;
   GtkWidget *temp;
+  gchar *font_name;
   gint folder_type;
 
   check_button = GTK_TOGGLE_BUTTON(gtk_builder_get_object(gnac_prefs_builder, 
@@ -170,8 +171,12 @@ gnac_prefs_gconf_retrieve(void)
   font_button = GTK_FONT_BUTTON(gtk_builder_get_object(gnac_prefs_builder, 
                                                "subtitles_font_button")); 
 
-  gtk_font_button_set_font_name(font_button, 
-    gnac_gconf_get_string(GNAC_GCONF_SUBTITLES_FONT));
+  font_name = gnac_gconf_get_string(GNAC_GCONF_SUBTITLES_FONT);
+  if (font_name)
+  {
+    gtk_font_button_set_font_name(font_button, font_name);
+    g_free(font_name);
+  }
 
   folder_type = gnac_gconf_get_int(GNAC_GCONF_FOLDER_TYPE);