diff --git a/gtk/gtkrange.c b/gtk/gtkrange.c index ceecafa935..cae85924b1 100644 --- a/gtk/gtkrange.c +++ b/gtk/gtkrange.c @@ -3623,14 +3623,24 @@ gtk_range_calc_slider (GtkRange *range) { GtkRangePrivate *priv = range->priv; GdkRectangle new_slider; + gboolean visible; - gtk_range_compute_slider_position (range, + if (GTK_IS_SCALE (range) && + gtk_adjustment_get_upper (priv->adjustment) == gtk_adjustment_get_lower (priv->adjustment)) + visible = FALSE; + else + visible = TRUE; + + gtk_range_compute_slider_position (range, gtk_adjustment_get_value (priv->adjustment), &new_slider); - if (gdk_rectangle_equal (&priv->slider, &new_slider)) + if (gdk_rectangle_equal (&priv->slider, &new_slider) && + visible == gtk_css_node_get_visible (priv->slider_node)) return; + gtk_css_node_set_visible (priv->slider_node, visible); + gtk_range_queue_draw_location (range, MOUSE_SLIDER); priv->slider = new_slider;