fixed toggle_slideshow function

https://sourceforge.net/tracker/index.php?func=detail&aid=2844302&group_id=222125&atid=1054680

diff --git a/src/layout_util.c b/src/layout_util.c
index d30f9a6..40bcaaf 100644 (file)
--- a/src/layout_util.c
+++ b/src/layout_util.c
@@ -809,10 +809,11 @@ static void layout_menu_bar_sort_cb(GtkToggleAction *action, gpointer data)
        layout_bar_sort_toggle(lw);
 }
 
-static void layout_menu_slideshow_cb(GtkAction *action, gpointer data)
+static void layout_menu_slideshow_cb(GtkToggleAction *action, gpointer data)
 {
        LayoutWindow *lw = data;
 
+       if (layout_image_slideshow_active(lw) == gtk_toggle_action_get_active(action)) return;
        layout_image_slideshow_toggle(lw);
 }