Expose horizontal/vertical custom_step as editor property for the ScrollContainer

doc/classes/ScrollContainer.xml

@@ -54,9 +54,15 @@
 		<member name="scroll_horizontal" type="int" setter="set_h_scroll" getter="get_h_scroll" default="0">
 			The current horizontal scroll value.
 		</member>
+		<member name="scroll_horizontal_custom_step" type="float" setter="set_horizontal_custom_step" getter="get_horizontal_custom_step" default="-1.0">
+			Overrides the [member ScrollBar.custom_step] used when clicking the internal scroll bar's horizontal increment and decrement buttons or when using arrow keys when the [ScrollBar] is focused.
+		</member>
 		<member name="scroll_vertical" type="int" setter="set_v_scroll" getter="get_v_scroll" default="0">
 			The current vertical scroll value.
 		</member>
+		<member name="scroll_vertical_custom_step" type="float" setter="set_vertical_custom_step" getter="get_vertical_custom_step" default="-1.0">
+			Overrides the [member ScrollBar.custom_step] used when clicking the internal scroll bar's vertical increment and decrement buttons or when using arrow keys when the [ScrollBar] is focused.
+		</member>
 		<member name="vertical_scroll_mode" type="int" setter="set_vertical_scroll_mode" getter="get_vertical_scroll_mode" enum="ScrollContainer.ScrollMode" default="1">
 			Controls whether vertical scrollbar can be used and when it should be visible. See [enum ScrollMode] for options.
 		</member>

scene/gui/scroll_container.cpp

@@ -482,6 +482,22 @@ int ScrollContainer::get_v_scroll() const {
 	return v_scroll->get_value();
 }
 
+void ScrollContainer::set_horizontal_custom_step(float p_custom_step) {
+	h_scroll->set_custom_step(p_custom_step);
+}
+
+float ScrollContainer::get_horizontal_custom_step() const {
+	return h_scroll->get_custom_step();
+}
+
+void ScrollContainer::set_vertical_custom_step(float p_custom_step) {
+	v_scroll->set_custom_step(p_custom_step);
+}
+
+float ScrollContainer::get_vertical_custom_step() const {
+	return v_scroll->get_custom_step();
+}
+
 void ScrollContainer::set_horizontal_scroll_mode(ScrollMode p_mode) {
 	if (horizontal_scroll_mode == p_mode) {
 		return;
@@ -570,6 +586,12 @@ void ScrollContainer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_v_scroll", "value"), &ScrollContainer::set_v_scroll);
 	ClassDB::bind_method(D_METHOD("get_v_scroll"), &ScrollContainer::get_v_scroll);
 
+	ClassDB::bind_method(D_METHOD("set_horizontal_custom_step", "value"), &ScrollContainer::set_horizontal_custom_step);
+	ClassDB::bind_method(D_METHOD("get_horizontal_custom_step"), &ScrollContainer::get_horizontal_custom_step);
+
+	ClassDB::bind_method(D_METHOD("set_vertical_custom_step", "value"), &ScrollContainer::set_vertical_custom_step);
+	ClassDB::bind_method(D_METHOD("get_vertical_custom_step"), &ScrollContainer::get_vertical_custom_step);
+
 	ClassDB::bind_method(D_METHOD("set_horizontal_scroll_mode", "enable"), &ScrollContainer::set_horizontal_scroll_mode);
 	ClassDB::bind_method(D_METHOD("get_horizontal_scroll_mode"), &ScrollContainer::get_horizontal_scroll_mode);
 
@@ -594,6 +616,8 @@ void ScrollContainer::_bind_methods() {
 	ADD_GROUP("Scroll", "scroll_");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "scroll_horizontal", PROPERTY_HINT_NONE, "suffix:px"), "set_h_scroll", "get_h_scroll");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "scroll_vertical", PROPERTY_HINT_NONE, "suffix:px"), "set_v_scroll", "get_v_scroll");
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "scroll_horizontal_custom_step", PROPERTY_HINT_RANGE, "-1,4096,suffix:px"), "set_horizontal_custom_step", "get_horizontal_custom_step");
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "scroll_vertical_custom_step", PROPERTY_HINT_RANGE, "-1,4096,suffix:px"), "set_vertical_custom_step", "get_vertical_custom_step");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "horizontal_scroll_mode", PROPERTY_HINT_ENUM, "Disabled,Auto,Always Show,Never Show"), "set_horizontal_scroll_mode", "get_horizontal_scroll_mode");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "vertical_scroll_mode", PROPERTY_HINT_ENUM, "Disabled,Auto,Always Show,Never Show"), "set_vertical_scroll_mode", "get_vertical_scroll_mode");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "scroll_deadzone"), "set_deadzone", "get_deadzone");

scene/gui/scroll_container.h

@@ -98,6 +98,12 @@ public:
 	void set_v_scroll(int p_pos);
 	int get_v_scroll() const;
 
+	void set_horizontal_custom_step(float p_custom_step);
+	float get_horizontal_custom_step() const;
+
+	void set_vertical_custom_step(float p_custom_step);
+	float get_vertical_custom_step() const;
+
 	void set_horizontal_scroll_mode(ScrollMode p_mode);
 	ScrollMode get_horizontal_scroll_mode() const;