Allow setting editor dock tabs to icon only

doc/classes/EditorPlugin.xml

@@ -727,6 +727,14 @@
 				Removes a callback previously added by [method add_undo_redo_inspector_hook_callback].
 			</description>
 		</method>
+		<method name="set_dock_tab_icon">
+			<return type="void" />
+			<param index="0" name="control" type="Control" />
+			<param index="1" name="icon" type="Texture2D" />
+			<description>
+				Sets the tab icon for the given control in a dock slot. Setting to [code]null[/code] removes the icon.
+			</description>
+		</method>
 		<method name="set_force_draw_over_forwarding_enabled">
 			<return type="void" />
 			<description>

doc/classes/EditorSettings.xml

@@ -635,6 +635,9 @@
 			If set to [b]Auto[/b], the editor scale is automatically determined based on the screen resolution and reported display DPI. This heuristic is not always ideal, which means you can get better results by setting the editor scale manually.
 			If set to [b]Custom[/b], the scaling value in [member interface/editor/custom_display_scale] will be used.
 		</member>
+		<member name="interface/editor/dock_tab_style" type="int" setter="" getter="">
+			Tab style of editor docks.
+		</member>
 		<member name="interface/editor/editor_language" type="String" setter="" getter="">
 			The language to use for the editor interface.
 			Translations are provided by the community. If you spot a mistake, [url=$DOCS_URL/contributing/documentation/editor_and_docs_localization.html]contribute to editor translations on Weblate![/url]

editor/editor_dock_manager.cpp

@@ -33,12 +33,10 @@
 #include "scene/gui/box_container.h"
 #include "scene/gui/button.h"
 #include "scene/gui/label.h"
-#include "scene/gui/popup.h"
 #include "scene/gui/split_container.h"
 #include "scene/gui/tab_container.h"
 #include "scene/main/window.h"
 
-#include "editor/editor_command_palette.h"
 #include "editor/editor_node.h"
 #include "editor/editor_settings.h"
 #include "editor/editor_string_names.h"
@@ -47,6 +45,12 @@
 #include "editor/themes/editor_scale.h"
 #include "editor/window_wrapper.h"
 
+enum class TabStyle {
+	TEXT_ONLY,
+	ICON_ONLY,
+	TEXT_AND_ICON,
+};
+
 EditorDockManager *EditorDockManager::singleton = nullptr;
 
 void DockSplitContainer::_update_visibility() {
@@ -157,7 +161,7 @@ void EditorDockManager::_update_docks_menu() {
 	docks_menu->clear();
 	docks_menu->reset_size();
 
-	const Ref<Texture2D> icon = docks_menu->get_editor_theme_icon(SNAME("Window"));
+	const Ref<Texture2D> default_icon = docks_menu->get_editor_theme_icon(SNAME("Window"));
 	const Color closed_icon_color_mod = Color(1, 1, 1, 0.5);
 
 	// Add docks.
@@ -170,7 +174,8 @@ void EditorDockManager::_update_docks_menu() {
 		} else {
 			docks_menu->add_item(dock.value.title, id);
 		}
-		docks_menu->set_item_icon(id, icon);
+		const Ref<Texture2D> icon = dock.value.icon_name ? docks_menu->get_editor_theme_icon(dock.value.icon_name) : dock.value.icon;
+		docks_menu->set_item_icon(id, icon.is_valid() ? icon : default_icon);
 		if (!dock.value.open) {
 			docks_menu->set_item_icon_modulate(id, closed_icon_color_mod);
 		}
@@ -345,7 +350,9 @@ void EditorDockManager::_move_dock(Control *p_dock, Control *p_target, int p_tab
 	p_target->set_block_signals(false);
 	TabContainer *dock_tab_container = Object::cast_to<TabContainer>(p_target);
 	if (dock_tab_container) {
-		dock_tab_container->set_tab_title(dock_tab_container->get_tab_idx_from_control(p_dock), all_docks[p_dock].title);
+		if (dock_tab_container->is_inside_tree()) {
+			_update_tab_style(p_dock);
+		}
 		if (p_tab_index >= 0) {
 			_move_dock_tab_index(p_dock, p_tab_index, p_set_current);
 		}
@@ -353,6 +360,42 @@ void EditorDockManager::_move_dock(Control *p_dock, Control *p_target, int p_tab
 	}
 }
 
+void EditorDockManager::_update_tab_style(Control *p_dock) {
+	const DockInfo &dock_info = all_docks[p_dock];
+	if (!dock_info.enabled || !dock_info.open) {
+		return; // Disabled by feature profile or manually closed by user.
+	}
+	if (dock_info.dock_window || dock_info.at_bottom) {
+		return; // Floating or sent to bottom.
+	}
+
+	TabContainer *tab_container = get_dock_tab_container(p_dock);
+	ERR_FAIL_NULL(tab_container);
+	int index = tab_container->get_tab_idx_from_control(p_dock);
+	ERR_FAIL_COND(index == -1);
+
+	const TabStyle style = (TabStyle)EDITOR_GET("interface/editor/dock_tab_style").operator int();
+	switch (style) {
+		case TabStyle::TEXT_ONLY: {
+			tab_container->set_tab_title(index, dock_info.title);
+			tab_container->set_tab_icon(index, Ref<Texture2D>());
+			tab_container->set_tab_tooltip(index, String());
+		} break;
+		case TabStyle::ICON_ONLY: {
+			const Ref<Texture2D> icon = dock_info.icon_name ? tab_container->get_editor_theme_icon(dock_info.icon_name) : dock_info.icon;
+			tab_container->set_tab_title(index, icon.is_valid() ? String() : dock_info.title);
+			tab_container->set_tab_icon(index, icon);
+			tab_container->set_tab_tooltip(index, icon.is_valid() ? dock_info.title : String());
+		} break;
+		case TabStyle::TEXT_AND_ICON: {
+			const Ref<Texture2D> icon = dock_info.icon_name ? tab_container->get_editor_theme_icon(dock_info.icon_name) : dock_info.icon;
+			tab_container->set_tab_title(index, dock_info.title);
+			tab_container->set_tab_icon(index, icon);
+			tab_container->set_tab_tooltip(index, String());
+		} break;
+	}
+}
+
 void EditorDockManager::save_docks_to_config(Ref<ConfigFile> p_layout, const String &p_section) const {
 	// Save docks by dock slot.
 	for (int i = 0; i < DOCK_SLOT_MAX; i++) {
@@ -666,14 +709,15 @@ void EditorDockManager::focus_dock(Control *p_dock) {
 	tab_container->set_current_tab(tab_index);
 }
 
-void EditorDockManager::add_dock(Control *p_dock, const String &p_title, DockSlot p_slot, const Ref<Shortcut> &p_shortcut) {
+void EditorDockManager::add_dock(Control *p_dock, const String &p_title, DockSlot p_slot, const Ref<Shortcut> &p_shortcut, const StringName &p_icon_name) {
 	ERR_FAIL_NULL(p_dock);
 	ERR_FAIL_COND_MSG(all_docks.has(p_dock), vformat("Cannot add dock '%s', already added.", p_dock->get_name()));
 
 	DockInfo dock_info;
-	dock_info.title = !p_title.is_empty() ? p_title : String(p_dock->get_name());
+	dock_info.title = p_title.is_empty() ? String(p_dock->get_name()) : p_title;
 	dock_info.dock_slot_index = p_slot;
 	dock_info.shortcut = p_shortcut;
+	dock_info.icon_name = p_icon_name;
 	all_docks[p_dock] = dock_info;
 
 	if (p_slot != DOCK_SLOT_NONE) {
@@ -696,6 +740,14 @@ void EditorDockManager::remove_dock(Control *p_dock) {
 	_update_layout();
 }
 
+void EditorDockManager::set_dock_tab_icon(Control *p_dock, const Ref<Texture2D> &p_icon) {
+	ERR_FAIL_NULL(p_dock);
+	ERR_FAIL_COND_MSG(!all_docks.has(p_dock), vformat("Cannot set tab icon for unknown dock '%s'.", p_dock->get_name()));
+
+	all_docks[p_dock].icon = p_icon;
+	_update_tab_style(p_dock);
+}
+
 void EditorDockManager::set_docks_visible(bool p_show) {
 	if (docks_visible == p_show) {
 		return;
@@ -711,6 +763,19 @@ bool EditorDockManager::are_docks_visible() const {
 	return docks_visible;
 }
 
+void EditorDockManager::update_tab_styles() {
+	for (const KeyValue<Control *, DockInfo> &dock : all_docks) {
+		_update_tab_style(dock.key);
+	}
+}
+
+void EditorDockManager::set_tab_icon_max_width(int p_max_width) {
+	for (int i = 0; i < DOCK_SLOT_MAX; i++) {
+		TabContainer *tab_container = dock_slot[i];
+		tab_container->add_theme_constant_override(SNAME("icon_max_width"), p_max_width);
+	}
+}
+
 void EditorDockManager::add_vsplit(DockSplitContainer *p_split) {
 	vsplits.push_back(p_split);
 	p_split->connect("dragged", callable_mp(this, &EditorDockManager::_dock_split_dragged));

editor/editor_dock_manager.h

@@ -87,6 +87,8 @@ private:
 		WindowWrapper *dock_window = nullptr;
 		int dock_slot_index = DOCK_SLOT_NONE;
 		Ref<Shortcut> shortcut;
+		Ref<Texture2D> icon; // Only used when `icon_name` is empty.
+		StringName icon_name;
 	};
 
 	static EditorDockManager *singleton;
@@ -126,9 +128,14 @@ private:
 	void _move_dock_tab_index(Control *p_dock, int p_tab_index, bool p_set_current);
 	void _move_dock(Control *p_dock, Control *p_target, int p_tab_index = -1, bool p_set_current = true);
 
+	void _update_tab_style(Control *p_dock);
+
 public:
 	static EditorDockManager *get_singleton() { return singleton; }
 
+	void update_tab_styles();
+	void set_tab_icon_max_width(int p_max_width);
+
 	void add_vsplit(DockSplitContainer *p_split);
 	void add_hsplit(DockSplitContainer *p_split);
 	void register_dock_slot(DockSlot p_dock_slot, TabContainer *p_tab_container);
@@ -150,9 +157,11 @@ public:
 	void set_docks_visible(bool p_show);
 	bool are_docks_visible() const;
 
-	void add_dock(Control *p_dock, const String &p_title = "", DockSlot p_slot = DOCK_SLOT_NONE, const Ref<Shortcut> &p_shortcut = nullptr);
+	void add_dock(Control *p_dock, const String &p_title = "", DockSlot p_slot = DOCK_SLOT_NONE, const Ref<Shortcut> &p_shortcut = nullptr, const StringName &p_icon_name = StringName());
 	void remove_dock(Control *p_dock);
 
+	void set_dock_tab_icon(Control *p_dock, const Ref<Texture2D> &p_icon);
+
 	EditorDockManager();
 };
 

editor/editor_node.cpp

@@ -544,6 +544,9 @@ void EditorNode::_update_theme(bool p_skip_creation) {
 			}
 		}
 	}
+
+	editor_dock_manager->update_tab_styles();
+	editor_dock_manager->set_tab_icon_max_width(theme->get_constant(SNAME("class_icon_size"), EditorStringName(Editor)));
 }
 
 void EditorNode::update_preview_themes(int p_mode) {
@@ -789,6 +792,10 @@ void EditorNode::_notification(int p_what) {
 				recent_scenes->reset_size();
 			}
 
+			if (EditorSettings::get_singleton()->check_changed_settings_in_group("interface/editor/dock_tab_style")) {
+				editor_dock_manager->update_tab_styles();
+			}
+
 			if (EditorSettings::get_singleton()->check_changed_settings_in_group("interface/scene_tabs")) {
 				scene_tabs->update_scene_tabs();
 			}
@@ -7040,22 +7047,22 @@ EditorNode::EditorNode() {
 	history_dock = memnew(HistoryDock);
 
 	// Scene: Top left.
-	editor_dock_manager->add_dock(SceneTreeDock::get_singleton(), TTR("Scene"), EditorDockManager::DOCK_SLOT_LEFT_UR);
+	editor_dock_manager->add_dock(SceneTreeDock::get_singleton(), TTR("Scene"), EditorDockManager::DOCK_SLOT_LEFT_UR, nullptr, "PackedScene");
 
 	// Import: Top left, behind Scene.
-	editor_dock_manager->add_dock(ImportDock::get_singleton(), TTR("Import"), EditorDockManager::DOCK_SLOT_LEFT_UR);
+	editor_dock_manager->add_dock(ImportDock::get_singleton(), TTR("Import"), EditorDockManager::DOCK_SLOT_LEFT_UR, nullptr, "FileAccess");
 
 	// FileSystem: Bottom left.
-	editor_dock_manager->add_dock(FileSystemDock::get_singleton(), TTR("FileSystem"), EditorDockManager::DOCK_SLOT_LEFT_BR, ED_SHORTCUT_AND_COMMAND("bottom_panels/toggle_filesystem_bottom_panel", TTR("Toggle FileSystem Bottom Panel"), KeyModifierMask::ALT | Key::F));
+	editor_dock_manager->add_dock(FileSystemDock::get_singleton(), TTR("FileSystem"), EditorDockManager::DOCK_SLOT_LEFT_BR, ED_SHORTCUT_AND_COMMAND("bottom_panels/toggle_filesystem_bottom_panel", TTR("Toggle FileSystem Bottom Panel"), KeyModifierMask::ALT | Key::F), "Folder");
 
 	// Inspector: Full height right.
-	editor_dock_manager->add_dock(InspectorDock::get_singleton(), TTR("Inspector"), EditorDockManager::DOCK_SLOT_RIGHT_UL);
+	editor_dock_manager->add_dock(InspectorDock::get_singleton(), TTR("Inspector"), EditorDockManager::DOCK_SLOT_RIGHT_UL, nullptr, "AnimationTrackList");
 
 	// Node: Full height right, behind Inspector.
-	editor_dock_manager->add_dock(NodeDock::get_singleton(), TTR("Node"), EditorDockManager::DOCK_SLOT_RIGHT_UL);
+	editor_dock_manager->add_dock(NodeDock::get_singleton(), TTR("Node"), EditorDockManager::DOCK_SLOT_RIGHT_UL, nullptr, "Object");
 
 	// History: Full height right, behind Node.
-	editor_dock_manager->add_dock(history_dock, TTR("History"), EditorDockManager::DOCK_SLOT_RIGHT_UL);
+	editor_dock_manager->add_dock(history_dock, TTR("History"), EditorDockManager::DOCK_SLOT_RIGHT_UL, nullptr, "History");
 
 	// Add some offsets to left_r and main hsplits to make LEFT_R and RIGHT_L docks wider than minsize.
 	left_r_hsplit->set_split_offset(270 * EDSCALE);

editor/editor_settings.cpp

@@ -400,6 +400,7 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
 
 	// Editor
 	EDITOR_SETTING(Variant::BOOL, PROPERTY_HINT_NONE, "interface/editor/localize_settings", true, "")
+	EDITOR_SETTING(Variant::INT, PROPERTY_HINT_ENUM, "interface/editor/dock_tab_style", 0, "Text Only,Icon Only,Text and Icon")
 	EDITOR_SETTING_USAGE(Variant::INT, PROPERTY_HINT_ENUM, "interface/editor/ui_layout_direction", 0, "Based on Application Locale,Left-to-Right,Right-to-Left,Based on System Locale", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_RESTART_IF_CHANGED)
 
 	// Display what the Auto display scale setting effectively corresponds to.

editor/plugins/editor_plugin.cpp

@@ -100,6 +100,11 @@ void EditorPlugin::remove_control_from_bottom_panel(Control *p_control) {
 	EditorNode::get_bottom_panel()->remove_item(p_control);
 }
 
+void EditorPlugin::set_dock_tab_icon(Control *p_control, const Ref<Texture2D> &p_icon) {
+	ERR_FAIL_NULL(p_control);
+	EditorDockManager::get_singleton()->set_dock_tab_icon(p_control, p_icon);
+}
+
 void EditorPlugin::add_control_to_container(CustomControlContainer p_location, Control *p_control) {
 	ERR_FAIL_NULL(p_control);
 
@@ -565,6 +570,7 @@ void EditorPlugin::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("remove_control_from_docks", "control"), &EditorPlugin::remove_control_from_docks);
 	ClassDB::bind_method(D_METHOD("remove_control_from_bottom_panel", "control"), &EditorPlugin::remove_control_from_bottom_panel);
 	ClassDB::bind_method(D_METHOD("remove_control_from_container", "container", "control"), &EditorPlugin::remove_control_from_container);
+	ClassDB::bind_method(D_METHOD("set_dock_tab_icon", "control", "icon"), &EditorPlugin::set_dock_tab_icon);
 	ClassDB::bind_method(D_METHOD("add_tool_menu_item", "name", "callable"), &EditorPlugin::add_tool_menu_item);
 	ClassDB::bind_method(D_METHOD("add_tool_submenu_item", "name", "submenu"), &EditorPlugin::add_tool_submenu_item);
 	ClassDB::bind_method(D_METHOD("remove_tool_menu_item", "name"), &EditorPlugin::remove_tool_menu_item);

editor/plugins/editor_plugin.h

@@ -151,6 +151,8 @@ public:
 	void remove_control_from_docks(Control *p_control);
 	void remove_control_from_bottom_panel(Control *p_control);
 
+	void set_dock_tab_icon(Control *p_control, const Ref<Texture2D> &p_icon);
+
 	void add_tool_menu_item(const String &p_name, const Callable &p_callable);
 	void add_tool_submenu_item(const String &p_name, PopupMenu *p_submenu);
 	void remove_tool_menu_item(const String &p_name);