Merge pull request #55694 from KoBeWi/scrollbar_modding_tools

ScrollContainer's scrollbar visibility is now enum

doc/classes/EditorInspector.xml

@@ -10,7 +10,7 @@
 	<tutorials>
 	</tutorials>
 	<members>
-		<member name="scroll_horizontal_enabled" type="bool" setter="set_enable_h_scroll" getter="is_h_scroll_enabled" overrides="ScrollContainer" default="false" />
+		<member name="horizontal_scroll_mode" type="int" setter="set_horizontal_scroll_mode" getter="get_horizontal_scroll_mode" overrides="ScrollContainer" enum="ScrollContainer.ScrollMode" default="0" />
 	</members>
 	<signals>
 		<signal name="object_id_selected">

doc/classes/ScrollContainer.xml

@@ -22,14 +22,14 @@
 			<return type="HScrollBar" />
 			<description>
 				Returns the horizontal scrollbar [HScrollBar] of this [ScrollContainer].
-				[b]Warning:[/b] This is a required internal node, removing and freeing it may cause a crash. If you wish to disable the horizontal scrollbar, use [member scroll_horizontal_enabled]. If you want to only hide it instead, use [member scroll_horizontal_visible].
+				[b]Warning:[/b] This is a required internal node, removing and freeing it may cause a crash. If you wish to disable or hide a scrollbar, you can use [member horizontal_scroll_mode].
 			</description>
 		</method>
 		<method name="get_v_scrollbar">
 			<return type="VScrollBar" />
 			<description>
 				Returns the vertical scrollbar [VScrollBar] of this [ScrollContainer].
-				[b]Warning:[/b] This is a required internal node, removing and freeing it may cause a crash. If you wish to disable the vertical scrollbar, use [member scroll_vertical_enabled]. If you want to only hide it instead, use [member scroll_vertical_visible].
+				[b]Warning:[/b] This is a required internal node, removing and freeing it may cause a crash. If you wish to disable or hide a scrollbar, you can use [member vertical_scroll_mode].
 			</description>
 		</method>
 	</methods>
@@ -37,26 +37,20 @@
 		<member name="follow_focus" type="bool" setter="set_follow_focus" getter="is_following_focus" default="false">
 			If [code]true[/code], the ScrollContainer will automatically scroll to focused children (including indirect children) to make sure they are fully visible.
 		</member>
+		<member name="horizontal_scroll_mode" type="int" setter="set_horizontal_scroll_mode" getter="get_horizontal_scroll_mode" enum="ScrollContainer.ScrollMode" default="1">
+			Controls whether horizontal scrollbar can be used and when it should be visible. See [enum ScrollMode] for options.
+		</member>
 		<member name="rect_clip_content" type="bool" setter="set_clip_contents" getter="is_clipping_contents" overrides="Control" default="true" />
 		<member name="scroll_deadzone" type="int" setter="set_deadzone" getter="get_deadzone" default="0">
 		</member>
 		<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_enabled" type="bool" setter="set_enable_h_scroll" getter="is_h_scroll_enabled" default="true">
-			If [code]true[/code], enables horizontal scrolling.
-		</member>
-		<member name="scroll_horizontal_visible" type="bool" setter="set_h_scroll_visible" getter="is_h_scroll_visible" default="true">
-			If [code]false[/code], hides the horizontal scrollbar.
-		</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_enabled" type="bool" setter="set_enable_v_scroll" getter="is_v_scroll_enabled" default="true">
-			If [code]true[/code], enables vertical scrolling.
-		</member>
-		<member name="scroll_vertical_visible" type="bool" setter="set_v_scroll_visible" getter="is_v_scroll_visible" default="true">
-			If [code]false[/code], hides the vertical scrollbar.
+		<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>
 	</members>
 	<signals>
@@ -71,6 +65,20 @@
 			</description>
 		</signal>
 	</signals>
+	<constants>
+		<constant name="SCROLL_MODE_DISABLED" value="0" enum="ScrollMode">
+			Scrolling disabled, scrollbar will be invisible.
+		</constant>
+		<constant name="SCROLL_MODE_AUTO" value="1" enum="ScrollMode">
+			Scrolling enabled, scrollbar will be visible only if necessary, i.e. container's content is bigger than the container.
+		</constant>
+		<constant name="SCROLL_MODE_SHOW_ALWAYS" value="2" enum="ScrollMode">
+			Scrolling enabled, scrollbar will be always visible.
+		</constant>
+		<constant name="SCROLL_MODE_SHOW_NEVER" value="3" enum="ScrollMode">
+			Scrolling enabled, scrollbar will be hidden.
+		</constant>
+	</constants>
 	<theme_items>
 		<theme_item name="bg" data_type="style" type="StyleBox">
 			The background [StyleBox] of the [ScrollContainer].

editor/animation_track_editor.cpp

@@ -6117,8 +6117,7 @@ AnimationTrackEditor::AnimationTrackEditor() {
 	track_vbox = memnew(VBoxContainer);
 	scroll->add_child(track_vbox);
 	track_vbox->set_h_size_flags(SIZE_EXPAND_FILL);
-	scroll->set_enable_h_scroll(false);
-	scroll->set_enable_v_scroll(true);
+	scroll->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	track_vbox->add_theme_constant_override("separation", 0);
 
 	HBoxContainer *bottom_hb = memnew(HBoxContainer);

editor/code_editor.cpp

@@ -1854,7 +1854,7 @@ CodeTextEditor::CodeTextEditor() {
 	ScrollContainer *scroll = memnew(ScrollContainer);
 	scroll->set_h_size_flags(SIZE_EXPAND_FILL);
 	scroll->set_v_size_flags(SIZE_EXPAND_FILL);
-	scroll->set_enable_v_scroll(false);
+	scroll->set_vertical_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	status_bar->add_child(scroll);
 
 	error = memnew(Label);

editor/editor_audio_buses.cpp

@@ -1298,8 +1298,7 @@ EditorAudioBuses::EditorAudioBuses() {
 
 	bus_scroll = memnew(ScrollContainer);
 	bus_scroll->set_v_size_flags(SIZE_EXPAND_FILL);
-	bus_scroll->set_enable_h_scroll(true);
-	bus_scroll->set_enable_v_scroll(false);
+	bus_scroll->set_vertical_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	add_child(bus_scroll);
 	bus_hb = memnew(HBoxContainer);
 	bus_hb->set_v_size_flags(SIZE_EXPAND_FILL);

editor/editor_inspector.cpp

@@ -3540,8 +3540,7 @@ EditorInspector::EditorInspector() {
 	main_vbox->set_h_size_flags(SIZE_EXPAND_FILL);
 	main_vbox->add_theme_constant_override("separation", 0);
 	add_child(main_vbox);
-	set_enable_h_scroll(false);
-	set_enable_v_scroll(true);
+	set_horizontal_scroll_mode(SCROLL_MODE_DISABLED);
 
 	wide_editors = false;
 	show_categories = false;

editor/editor_properties.cpp

@@ -3065,7 +3065,7 @@ void EditorPropertyResource::update_property() {
 		if (res.is_valid() && get_edited_object()->editor_is_section_unfolded(get_edited_property())) {
 			if (!sub_inspector) {
 				sub_inspector = memnew(EditorInspector);
-				sub_inspector->set_enable_v_scroll(false);
+				sub_inspector->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 				sub_inspector->set_use_doc_hints(true);
 
 				sub_inspector->set_sub_inspector(true);

editor/plugins/animation_tree_editor_plugin.cpp

@@ -226,8 +226,7 @@ AnimationTreeEditor::AnimationTreeEditor() {
 	AnimationNodeAnimation::get_editable_animation_list = get_animation_list;
 	path_edit = memnew(ScrollContainer);
 	add_child(path_edit);
-	path_edit->set_enable_h_scroll(true);
-	path_edit->set_enable_v_scroll(false);
+	path_edit->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	path_hb = memnew(HBoxContainer);
 	path_edit->add_child(path_hb);
 	path_hb->add_child(memnew(Label(TTR("Path:"))));

editor/plugins/asset_library_editor_plugin.cpp

@@ -288,8 +288,7 @@ EditorAssetLibraryItemDescription::EditorAssetLibraryItemDescription() {
 
 	previews = memnew(ScrollContainer);
 	previews_bg->add_child(previews);
-	previews->set_enable_v_scroll(false);
-	previews->set_enable_h_scroll(true);
+	previews->set_vertical_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	preview_hb = memnew(HBoxContainer);
 	preview_hb->set_v_size_flags(Control::SIZE_EXPAND_FILL);
 
@@ -1431,8 +1430,7 @@ EditorAssetLibrary::EditorAssetLibrary(bool p_templates_only) {
 	library_scroll_bg->set_v_size_flags(Control::SIZE_EXPAND_FILL);
 
 	library_scroll = memnew(ScrollContainer);
-	library_scroll->set_enable_v_scroll(true);
-	library_scroll->set_enable_h_scroll(false);
+	library_scroll->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 
 	library_scroll_bg->add_child(library_scroll);
 
@@ -1499,8 +1497,7 @@ EditorAssetLibrary::EditorAssetLibrary(bool p_templates_only) {
 	set_process_unhandled_key_input(true); // Global shortcuts since there is no main element to be focused.
 
 	downloads_scroll = memnew(ScrollContainer);
-	downloads_scroll->set_enable_h_scroll(true);
-	downloads_scroll->set_enable_v_scroll(false);
+	downloads_scroll->set_vertical_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	library_main->add_child(downloads_scroll);
 	downloads_hb = memnew(HBoxContainer);
 	downloads_scroll->add_child(downloads_hb);

editor/plugins/sprite_2d_editor_plugin.cpp

@@ -526,8 +526,6 @@ Sprite2DEditor::Sprite2DEditor() {
 	debug_uv_dialog->add_child(vb);
 	ScrollContainer *scroll = memnew(ScrollContainer);
 	scroll->set_custom_minimum_size(Size2(800, 500) * EDSCALE);
-	scroll->set_enable_h_scroll(true);
-	scroll->set_enable_v_scroll(true);
 	vb->add_margin_child(TTR("Preview:"), scroll, true);
 	debug_uv = memnew(Control);
 	debug_uv->connect("draw", callable_mp(this, &Sprite2DEditor::_debug_uv_draw));

editor/plugins/sprite_frames_editor_plugin.cpp

@@ -1238,8 +1238,6 @@ SpriteFramesEditor::SpriteFramesEditor() {
 	split_sheet_preview->connect("gui_input", callable_mp(this, &SpriteFramesEditor::_sheet_preview_input));
 
 	split_sheet_scroll = memnew(ScrollContainer);
-	split_sheet_scroll->set_enable_h_scroll(true);
-	split_sheet_scroll->set_enable_v_scroll(true);
 	split_sheet_scroll->connect("gui_input", callable_mp(this, &SpriteFramesEditor::_sheet_scroll_input));
 	split_sheet_panel->add_child(split_sheet_scroll);
 	CenterContainer *cc = memnew(CenterContainer);

editor/plugins/theme_editor_plugin.cpp

@@ -941,7 +941,7 @@ ThemeItemImportTree::ThemeItemImportTree() {
 
 	ScrollContainer *import_bulk_sc = memnew(ScrollContainer);
 	import_bulk_sc->set_custom_minimum_size(Size2(260.0, 0.0) * EDSCALE);
-	import_bulk_sc->set_enable_h_scroll(false);
+	import_bulk_sc->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	import_main_hb->add_child(import_bulk_sc);
 	VBoxContainer *import_bulk_vb = memnew(VBoxContainer);
 	import_bulk_vb->set_h_size_flags(Control::SIZE_EXPAND_FILL);
@@ -2113,7 +2113,7 @@ VBoxContainer *ThemeTypeEditor::_create_item_list(Theme::DataType p_data_type) {
 
 	ScrollContainer *items_sc = memnew(ScrollContainer);
 	items_sc->set_v_size_flags(SIZE_EXPAND_FILL);
-	items_sc->set_enable_h_scroll(false);
+	items_sc->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	items_tab->add_child(items_sc);
 	VBoxContainer *items_list = memnew(VBoxContainer);
 	items_list->set_h_size_flags(SIZE_EXPAND_FILL);
@@ -3102,7 +3102,7 @@ ThemeTypeEditor::ThemeTypeEditor() {
 
 	ScrollContainer *type_settings_sc = memnew(ScrollContainer);
 	type_settings_sc->set_v_size_flags(SIZE_EXPAND_FILL);
-	type_settings_sc->set_enable_h_scroll(false);
+	type_settings_sc->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	type_settings_tab->add_child(type_settings_sc);
 	VBoxContainer *type_settings_list = memnew(VBoxContainer);
 	type_settings_list->set_h_size_flags(SIZE_EXPAND_FILL);

editor/plugins/theme_editor_preview.cpp

@@ -228,8 +228,6 @@ ThemeEditorPreview::ThemeEditorPreview() {
 	add_child(preview_body);
 
 	preview_container = memnew(ScrollContainer);
-	preview_container->set_enable_v_scroll(true);
-	preview_container->set_enable_h_scroll(true);
 	preview_body->add_child(preview_container);
 
 	MarginContainer *preview_root = memnew(MarginContainer);

editor/plugins/tiles/tile_set_atlas_source_editor.cpp

@@ -2321,7 +2321,7 @@ TileSetAtlasSourceEditor::TileSetAtlasSourceEditor() {
 
 	// Middle panel.
 	ScrollContainer *middle_panel = memnew(ScrollContainer);
-	middle_panel->set_enable_h_scroll(false);
+	middle_panel->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	middle_panel->set_custom_minimum_size(Size2i(200, 0) * EDSCALE);
 	split_container_right_side->add_child(middle_panel);
 
@@ -2339,7 +2339,7 @@ TileSetAtlasSourceEditor::TileSetAtlasSourceEditor() {
 
 	tile_inspector = memnew(EditorInspector);
 	tile_inspector->set_undo_redo(undo_redo);
-	tile_inspector->set_enable_v_scroll(false);
+	tile_inspector->set_vertical_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	tile_inspector->edit(tile_proxy_object);
 	tile_inspector->set_use_folding(true);
 	tile_inspector->connect("property_selected", callable_mp(this, &TileSetAtlasSourceEditor::_inspector_property_selected));
@@ -2385,7 +2385,7 @@ TileSetAtlasSourceEditor::TileSetAtlasSourceEditor() {
 
 	atlas_source_inspector = memnew(EditorInspector);
 	atlas_source_inspector->set_undo_redo(undo_redo);
-	atlas_source_inspector->set_enable_v_scroll(false);
+	atlas_source_inspector->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	atlas_source_inspector->edit(atlas_source_proxy_object);
 	middle_vbox_container->add_child(atlas_source_inspector);
 

editor/plugins/tiles/tile_set_scenes_collection_source_editor.cpp

@@ -459,7 +459,7 @@ TileSetScenesCollectionSourceEditor::TileSetScenesCollectionSourceEditor() {
 
 	// Middle panel.
 	ScrollContainer *middle_panel = memnew(ScrollContainer);
-	middle_panel->set_enable_h_scroll(false);
+	middle_panel->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	middle_panel->set_custom_minimum_size(Size2i(200, 0) * EDSCALE);
 	split_container_right_side->add_child(middle_panel);
 
@@ -477,7 +477,7 @@ TileSetScenesCollectionSourceEditor::TileSetScenesCollectionSourceEditor() {
 
 	scenes_collection_source_inspector = memnew(EditorInspector);
 	scenes_collection_source_inspector->set_undo_redo(undo_redo);
-	scenes_collection_source_inspector->set_enable_v_scroll(false);
+	scenes_collection_source_inspector->set_vertical_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	scenes_collection_source_inspector->edit(scenes_collection_source_proxy_object);
 	middle_vbox_container->add_child(scenes_collection_source_inspector);
 
@@ -493,7 +493,7 @@ TileSetScenesCollectionSourceEditor::TileSetScenesCollectionSourceEditor() {
 
 	tile_inspector = memnew(EditorInspector);
 	tile_inspector->set_undo_redo(undo_redo);
-	tile_inspector->set_enable_v_scroll(false);
+	tile_inspector->set_vertical_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 	tile_inspector->edit(tile_proxy_object);
 	tile_inspector->set_use_folding(true);
 	middle_vbox_container->add_child(tile_inspector);

editor/project_manager.cpp

@@ -2595,7 +2595,7 @@ ProjectManager::ProjectManager() {
 		_project_list = memnew(ProjectList);
 		_project_list->connect(ProjectList::SIGNAL_SELECTION_CHANGED, callable_mp(this, &ProjectManager::_update_project_buttons));
 		_project_list->connect(ProjectList::SIGNAL_PROJECT_ASK_OPEN, callable_mp(this, &ProjectManager::_open_selected_projects_ask));
-		_project_list->set_enable_h_scroll(false);
+		_project_list->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
 		pc->add_child(_project_list);
 	}
 

scene/gui/scroll_container.cpp

@@ -49,10 +49,10 @@ Size2 ScrollContainer::get_minimum_size() const {
 		}
 		Size2 minsize = c->get_combined_minimum_size();
 
-		if (!scroll_h) {
+		if (horizontal_scroll_mode == SCROLL_MODE_DISABLED) {
 			min_size.x = MAX(min_size.x, minsize.x);
 		}
-		if (!scroll_v) {
+		if (vertical_scroll_mode == SCROLL_MODE_DISABLED) {
 			min_size.y = MAX(min_size.y, minsize.y);
 		}
 	}
@@ -170,7 +170,7 @@ void ScrollContainer::gui_input(const Ref<InputEvent> &p_gui_input) {
 			Vector2 motion = mm->get_relative();
 			drag_accum -= motion;
 
-			if (beyond_deadzone || (scroll_h && Math::abs(drag_accum.x) > deadzone) || (scroll_v && Math::abs(drag_accum.y) > deadzone)) {
+			if (beyond_deadzone || (horizontal_scroll_mode != SCROLL_MODE_DISABLED && Math::abs(drag_accum.x) > deadzone) || (vertical_scroll_mode != SCROLL_MODE_DISABLED && Math::abs(drag_accum.y) > deadzone)) {
 				if (!beyond_deadzone) {
 					propagate_notification(NOTIFICATION_SCROLL_BEGIN);
 					emit_signal(SNAME("scroll_started"));
@@ -180,12 +180,12 @@ void ScrollContainer::gui_input(const Ref<InputEvent> &p_gui_input) {
 					drag_accum = -motion;
 				}
 				Vector2 diff = drag_from + drag_accum;
-				if (scroll_h) {
+				if (horizontal_scroll_mode != SCROLL_MODE_DISABLED) {
 					h_scroll->set_value(diff.x);
 				} else {
 					drag_accum.x = 0;
 				}
-				if (scroll_v) {
+				if (vertical_scroll_mode != SCROLL_MODE_DISABLED) {
 					v_scroll->set_value(diff.y);
 				} else {
 					drag_accum.y = 0;
@@ -286,7 +286,7 @@ void ScrollContainer::_update_dimensions() {
 		child_max_size.y = MAX(child_max_size.y, minsize.y);
 
 		Rect2 r = Rect2(-Size2(get_h_scroll(), get_v_scroll()), minsize);
-		if (!scroll_h || (!h_scroll->is_visible_in_tree() && c->get_h_size_flags() & SIZE_EXPAND)) {
+		if (horizontal_scroll_mode == SCROLL_MODE_DISABLED || (!h_scroll->is_visible_in_tree() && c->get_h_size_flags() & SIZE_EXPAND)) {
 			r.position.x = 0;
 			if (c->get_h_size_flags() & SIZE_EXPAND) {
 				r.size.width = MAX(size.width, minsize.width);
@@ -294,7 +294,7 @@ void ScrollContainer::_update_dimensions() {
 				r.size.width = minsize.width;
 			}
 		}
-		if (!scroll_v || (!v_scroll->is_visible_in_tree() && c->get_v_size_flags() & SIZE_EXPAND)) {
+		if (vertical_scroll_mode == SCROLL_MODE_DISABLED || (!v_scroll->is_visible_in_tree() && c->get_v_size_flags() & SIZE_EXPAND)) {
 			r.position.y = 0;
 			if (c->get_v_size_flags() & SIZE_EXPAND) {
 				r.size.height = MAX(size.height, minsize.height);
@@ -364,10 +364,10 @@ void ScrollContainer::_notification(int p_what) {
 					turnoff_v = true;
 				}
 
-				if (scroll_h) {
+				if (horizontal_scroll_mode != SCROLL_MODE_DISABLED) {
 					h_scroll->set_value(pos.x);
 				}
-				if (scroll_v) {
+				if (vertical_scroll_mode != SCROLL_MODE_DISABLED) {
 					v_scroll->set_value(pos.y);
 				}
 
@@ -413,17 +413,17 @@ void ScrollContainer::update_scrollbars() {
 
 	Size2 hmin;
 	Size2 vmin;
-	if (scroll_h) {
+	if (horizontal_scroll_mode != SCROLL_MODE_DISABLED) {
 		hmin = h_scroll->get_combined_minimum_size();
 	}
-	if (scroll_v) {
+	if (vertical_scroll_mode != SCROLL_MODE_DISABLED) {
 		vmin = v_scroll->get_combined_minimum_size();
 	}
 
 	Size2 min = child_max_size;
 
-	bool hide_scroll_h = !scroll_h || min.width <= size.width || !h_scroll_visible;
-	bool hide_scroll_v = !scroll_v || min.height <= size.height || !v_scroll_visible;
+	bool hide_scroll_h = horizontal_scroll_mode != SCROLL_MODE_SHOW_ALWAYS && (horizontal_scroll_mode == SCROLL_MODE_DISABLED || horizontal_scroll_mode == SCROLL_MODE_SHOW_NEVER || (horizontal_scroll_mode == SCROLL_MODE_AUTO && min.width <= size.width));
+	bool hide_scroll_v = vertical_scroll_mode != SCROLL_MODE_SHOW_ALWAYS && (vertical_scroll_mode == SCROLL_MODE_DISABLED || vertical_scroll_mode == SCROLL_MODE_SHOW_NEVER || (vertical_scroll_mode == SCROLL_MODE_AUTO && min.height <= size.height));
 
 	h_scroll->set_max(min.width);
 	h_scroll->set_page(size.width - (hide_scroll_v ? 0 : vmin.width));
@@ -461,58 +461,32 @@ int ScrollContainer::get_v_scroll() const {
 	return v_scroll->get_value();
 }
 
-void ScrollContainer::set_enable_h_scroll(bool p_enable) {
-	if (scroll_h == p_enable) {
+void ScrollContainer::set_horizontal_scroll_mode(ScrollMode p_mode) {
+	if (horizontal_scroll_mode == p_mode) {
 		return;
 	}
 
-	scroll_h = p_enable;
+	horizontal_scroll_mode = p_mode;
 	update_minimum_size();
 	queue_sort();
 }
 
-bool ScrollContainer::is_h_scroll_enabled() const {
-	return scroll_h;
+ScrollContainer::ScrollMode ScrollContainer::get_horizontal_scroll_mode() const {
+	return horizontal_scroll_mode;
 }
 
-void ScrollContainer::set_enable_v_scroll(bool p_enable) {
-	if (scroll_v == p_enable) {
+void ScrollContainer::set_vertical_scroll_mode(ScrollMode p_mode) {
+	if (vertical_scroll_mode == p_mode) {
 		return;
 	}
 
-	scroll_v = p_enable;
+	vertical_scroll_mode = p_mode;
 	update_minimum_size();
 	queue_sort();
 }
 
-bool ScrollContainer::is_v_scroll_enabled() const {
-	return scroll_v;
-}
-
-void ScrollContainer::set_h_scroll_visible(bool p_visible) {
-	if (h_scroll_visible == p_visible) {
-		return;
-	}
-
-	h_scroll_visible = p_visible;
-	update_scrollbars();
-}
-
-bool ScrollContainer::is_h_scroll_visible() const {
-	return h_scroll_visible;
-}
-
-void ScrollContainer::set_v_scroll_visible(bool p_visible) {
-	if (v_scroll_visible == p_visible) {
-		return;
-	}
-
-	v_scroll_visible = p_visible;
-	update_scrollbars();
-}
-
-bool ScrollContainer::is_v_scroll_visible() const {
-	return v_scroll_visible;
+ScrollContainer::ScrollMode ScrollContainer::get_vertical_scroll_mode() const {
+	return vertical_scroll_mode;
 }
 
 int ScrollContainer::get_deadzone() const {
@@ -575,17 +549,11 @@ 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_enable_h_scroll", "enable"), &ScrollContainer::set_enable_h_scroll);
-	ClassDB::bind_method(D_METHOD("is_h_scroll_enabled"), &ScrollContainer::is_h_scroll_enabled);
-
-	ClassDB::bind_method(D_METHOD("set_enable_v_scroll", "enable"), &ScrollContainer::set_enable_v_scroll);
-	ClassDB::bind_method(D_METHOD("is_v_scroll_enabled"), &ScrollContainer::is_v_scroll_enabled);
+	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);
 
-	ClassDB::bind_method(D_METHOD("set_h_scroll_visible", "visible"), &ScrollContainer::set_h_scroll_visible);
-	ClassDB::bind_method(D_METHOD("is_h_scroll_visible"), &ScrollContainer::is_h_scroll_visible);
-
-	ClassDB::bind_method(D_METHOD("set_v_scroll_visible", "visible"), &ScrollContainer::set_v_scroll_visible);
-	ClassDB::bind_method(D_METHOD("is_v_scroll_visible"), &ScrollContainer::is_v_scroll_visible);
+	ClassDB::bind_method(D_METHOD("set_vertical_scroll_mode", "enable"), &ScrollContainer::set_vertical_scroll_mode);
+	ClassDB::bind_method(D_METHOD("get_vertical_scroll_mode"), &ScrollContainer::get_vertical_scroll_mode);
 
 	ClassDB::bind_method(D_METHOD("set_deadzone", "deadzone"), &ScrollContainer::set_deadzone);
 	ClassDB::bind_method(D_METHOD("get_deadzone"), &ScrollContainer::get_deadzone);
@@ -605,12 +573,15 @@ void ScrollContainer::_bind_methods() {
 	ADD_GROUP("Scroll", "scroll_");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "scroll_horizontal"), "set_h_scroll", "get_h_scroll");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "scroll_vertical"), "set_v_scroll", "get_v_scroll");
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_horizontal_enabled"), "set_enable_h_scroll", "is_h_scroll_enabled");
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_vertical_enabled"), "set_enable_v_scroll", "is_v_scroll_enabled");
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_horizontal_visible"), "set_h_scroll_visible", "is_h_scroll_visible");
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_vertical_visible"), "set_v_scroll_visible", "is_v_scroll_visible");
+	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");
 
+	BIND_ENUM_CONSTANT(SCROLL_MODE_DISABLED);
+	BIND_ENUM_CONSTANT(SCROLL_MODE_AUTO);
+	BIND_ENUM_CONSTANT(SCROLL_MODE_SHOW_ALWAYS);
+	BIND_ENUM_CONSTANT(SCROLL_MODE_SHOW_NEVER);
+
 	GLOBAL_DEF("gui/common/default_scroll_deadzone", 0);
 };
 

scene/gui/scroll_container.h

@@ -38,6 +38,15 @@
 class ScrollContainer : public Container {
 	GDCLASS(ScrollContainer, Container);
 
+public:
+	enum ScrollMode {
+		SCROLL_MODE_DISABLED = 0,
+		SCROLL_MODE_AUTO,
+		SCROLL_MODE_SHOW_ALWAYS,
+		SCROLL_MODE_SHOW_NEVER,
+	};
+
+private:
 	HScrollBar *h_scroll;
 	VScrollBar *v_scroll;
 
@@ -54,11 +63,8 @@ class ScrollContainer : public Container {
 	bool drag_touching_deaccel = false;
 	bool beyond_deadzone = false;
 
-	bool scroll_h = true;
-	bool scroll_v = true;
-
-	bool h_scroll_visible = true;
-	bool v_scroll_visible = true;
+	ScrollMode horizontal_scroll_mode = SCROLL_MODE_AUTO;
+	ScrollMode vertical_scroll_mode = SCROLL_MODE_AUTO;
 
 	int deadzone = 0;
 	bool follow_focus = false;
@@ -87,17 +93,11 @@ public:
 	void set_v_scroll(int p_pos);
 	int get_v_scroll() const;
 
-	void set_enable_h_scroll(bool p_enable);
-	bool is_h_scroll_enabled() const;
-
-	void set_enable_v_scroll(bool p_enable);
-	bool is_v_scroll_enabled() const;
+	void set_horizontal_scroll_mode(ScrollMode p_mode);
+	ScrollMode get_horizontal_scroll_mode() const;
 
-	void set_h_scroll_visible(bool p_visible);
-	bool is_h_scroll_visible() const;
-
-	void set_v_scroll_visible(bool p_visible);
-	bool is_v_scroll_visible() const;
+	void set_vertical_scroll_mode(ScrollMode p_mode);
+	ScrollMode get_vertical_scroll_mode() const;
 
 	int get_deadzone() const;
 	void set_deadzone(int p_deadzone);
@@ -114,4 +114,6 @@ public:
 	ScrollContainer();
 };
 
+VARIANT_ENUM_CAST(ScrollContainer::ScrollMode);
+
 #endif