tooltipwindow: Cast the correct object

the tooltipwindow is in the userdata.

diff --git a/gtk/gtktooltipwindow.c b/gtk/gtktooltipwindow.c
index a24bcb4157970907cc32f997aa72eba27b5c3a48..341a606cf62b4ca97f0d5351fdeaea2b12fbd396 100644 (file)
--- a/gtk/gtktooltipwindow.c
+++ b/gtk/gtktooltipwindow.c
@@ -258,7 +258,7 @@ surface_transform_changed_cb (GtkWidget               *widget,
                               const graphene_matrix_t *transform,
                               gpointer                 user_data)
 {
-  GtkTooltipWindow *window = GTK_TOOLTIP_WINDOW (widget);
+  GtkTooltipWindow *window = GTK_TOOLTIP_WINDOW (user_data);
 
   gtk_tooltip_window_relayout (window);