Expose EditorSpinSlider.hide_slider

(cherry picked from commit 8e752b06e8a0f116991a0e618cc47e4fe2f3d270)

doc/classes/EditorSpinSlider.xml

@@ -14,6 +14,9 @@
 		<member name="flat" type="bool" setter="set_flat" getter="is_flat" default="false">
 		</member>
 		<member name="focus_mode" type="int" setter="set_focus_mode" getter="get_focus_mode" overrides="Control" enum="Control.FocusMode" default="2" />
+		<member name="hide_slider" type="bool" setter="set_hide_slider" getter="is_hiding_slider" default="false">
+			If [code]true[/code], the slider is hidden.
+		</member>
 		<member name="label" type="String" setter="set_label" getter="get_label" default="&quot;&quot;">
 		</member>
 		<member name="read_only" type="bool" setter="set_read_only" getter="is_read_only" default="false">

editor/editor_spin_slider.cpp

@@ -562,6 +562,9 @@ void EditorSpinSlider::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_flat", "flat"), &EditorSpinSlider::set_flat);
 	ClassDB::bind_method(D_METHOD("is_flat"), &EditorSpinSlider::is_flat);
 
+	ClassDB::bind_method(D_METHOD("set_hide_slider", "hide_slider"), &EditorSpinSlider::set_hide_slider);
+	ClassDB::bind_method(D_METHOD("is_hiding_slider"), &EditorSpinSlider::is_hiding_slider);
+
 	ClassDB::bind_method(D_METHOD("_gui_input"), &EditorSpinSlider::_gui_input);
 	ClassDB::bind_method(D_METHOD("_value_input_gui_input", "event"), &EditorSpinSlider::_value_input_gui_input);
 	ClassDB::bind_method(D_METHOD("_grabber_mouse_entered"), &EditorSpinSlider::_grabber_mouse_entered);
@@ -574,6 +577,7 @@ void EditorSpinSlider::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "label"), "set_label", "get_label");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "read_only"), "set_read_only", "is_read_only");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flat"), "set_flat", "is_flat");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "hide_slider"), "set_hide_slider", "is_hiding_slider");
 }
 
 EditorSpinSlider::EditorSpinSlider() {