gtk_widget_translate_coordinates() can fail in case the widget is not
realized or there's no common ancestor. Don't use the x/y values
returned by that method in that case, since their value is undefined.
{
GtkWidget *grandchild;
gint x, y;
+ gboolean res;
grandchild = gtk_bin_get_child (GTK_BIN (main_widget));
res = gtk_widget_translate_coordinates (grandchild, main_widget, 0, 0, &x, &y);
- main_alloc.x = x;
- main_alloc.y = y;
+ if (res)
+ {
+ main_alloc.x = x;
+ main_alloc.y = y;
+ }
+ else
+ {
+ main_alloc.x = 0;
+ main_alloc.y = 0;
+ }
+
main_alloc.width = gtk_widget_get_allocated_width (grandchild);
main_alloc.height = gtk_widget_get_allocated_height (grandchild);
}