Implement tabs

assets/icons/Close.svg.import

@@ -0,0 +1,37 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://b0y4h5tuyrais"
+path="res://.godot/imported/Close.svg-ec226890f15a36af010397a4558772f4.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/icons/Close.svg"
+dest_files=["res://.godot/imported/Close.svg-ec226890f15a36af010397a4558772f4.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

assets/icons/CreateTab.svg.import

@@ -0,0 +1,37 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bnl24bflj771n"
+path="res://.godot/imported/CreateTab.svg-5a4a2c79f40bbfe654b40ae41510476b.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/icons/CreateTab.svg"
+dest_files=["res://.godot/imported/CreateTab.svg-5a4a2c79f40bbfe654b40ae41510476b.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

src/autoload/Configs.gd

@@ -1,8 +1,6 @@
 # This singleton handles session data and settings.
 extends Node
 
-@warning_ignore("unused_signal")
-signal file_path_changed
 @warning_ignore("unused_signal")
 signal highlighting_colors_changed
 @warning_ignore("unused_signal")
@@ -21,6 +19,12 @@ signal basic_colors_changed
 signal handle_visuals_changed
 @warning_ignore("unused_signal")
 signal shortcut_panel_changed
+@warning_ignore("unused_signal")
+signal active_tab_file_path_changed
+@warning_ignore("unused_signal")
+signal active_tab_changed
+@warning_ignore("unused_signal")
+signal tabs_changed
 
 const savedata_path = "user://savedata.tres"
 var savedata: SaveData:
@@ -30,13 +34,6 @@ var savedata: SaveData:
 			savedata.validate()
 			savedata.changed_deferred.connect(save)
 
-var svg_text := "":
-	set(new_value):
-		if new_value != svg_text:
-			svg_text = new_value
-			FileAccess.open(svg_path, FileAccess.WRITE).store_string(svg_text)
-
-const svg_path = "user://save.svg"
 
 func save() -> void:
 	ResourceSaver.save(savedata, savedata_path)
@@ -50,9 +47,7 @@ func _enter_tree() -> void:
 		if InputMap.has_action(action):
 			default_shortcuts[action] = InputMap.action_get_events(action)
 	load_config()
-	load_svg_text()
 	ThemeUtils.generate_and_apply_theme()
-	update_window_title()
 
 
 func load_config() -> void:
@@ -65,21 +60,18 @@ func load_config() -> void:
 		reset_settings()
 		return
 
-	update_window_title()
+	savedata.get_active_tab().activate()
 	change_background_color()
 	change_locale()
 
-func load_svg_text() -> void:
-	var fa := FileAccess.open(svg_path, FileAccess.READ)
-	if fa != null:
-		svg_text = fa.get_as_text()
 
 func reset_settings() -> void:
 	savedata = SaveData.new()
 	savedata.reset_to_default()
 	savedata.language = "en"
 	savedata.set_shortcut_panel_slots({ 0: "undo", 1: "redo" })
 	savedata.set_palettes([Palette.new("Pure", Palette.Preset.PURE)])
+	savedata.add_empty_tab()
 	save()
 
 
@@ -98,14 +90,11 @@ func generate_highlighter() -> SVGHighlighter:
 
 # Global effects from settings. Some of them should also be used on launch.
 
-func update_window_title() -> void:
-	if savedata.use_filename_for_window_title and !savedata.current_file_path.is_empty():
-		get_window().title = savedata.current_file_path.get_file() + " - GodSVG"
-	else:
-		get_window().title = "GodSVG"
-
 func change_background_color() -> void:
 	RenderingServer.set_default_clear_color(savedata.background_color)
 
 func change_locale() -> void:
-	TranslationServer.set_locale(savedata.language)
+	if not savedata.language in TranslationServer.get_loaded_locales():
+		savedata.language = "en"
+	else:
+		TranslationServer.set_locale(savedata.language)

src/autoload/HandlerGUI.gd

@@ -1,8 +1,8 @@
 extends Node
 
 # Not a good idea to preload scenes inside a singleton.
-const AlertDialog = preload("res://src/ui_parts/alert_dialog.tscn")
-const ConfirmDialog = preload("res://src/ui_parts/confirm_dialog.tscn")
+const AlertDialog = preload("res://src/ui_widgets/alert_dialog.tscn")
+const ConfirmDialog = preload("res://src/ui_widgets/confirm_dialog.tscn")
 const SettingsMenu = preload("res://src/ui_parts/settings_menu.tscn")
 const AboutMenu = preload("res://src/ui_parts/about_menu.tscn")
 const DonateMenu = preload("res://src/ui_parts/donate_menu.tscn")
@@ -24,6 +24,10 @@ func _enter_tree() -> void:
 	window.size_changed.connect(remove_all_popups)
 
 func _ready() -> void:
+	Configs.active_tab_changed.connect(update_window_title)
+	Configs.active_tab_file_path_changed.connect(update_window_title)
+	update_window_title()
+
 	Configs.ui_scale_changed.connect(update_ui_scale)
 	await get_tree().process_frame  # Helps make things more consistent.
 	update_ui_scale()
@@ -54,7 +58,7 @@ func add_dialog(new_dialog: Control) -> void:
 	_add_control(new_dialog)
 
 func _add_control(new_control: Control) -> void:
-	# FIXME subpar workaround to drag & drop not able to be cancelled manually.
+	# FIXME subpar workaround to drag & drop not able to be canceled manually.
 	get_tree().root.propagate_notification(NOTIFICATION_DRAG_END)
 	remove_all_popups()
 
@@ -224,8 +228,8 @@ func _input(event: InputEvent) -> void:
 		return
 
 	# Global actions that should happen regardless of the context.
-	for action in ["import", "export", "save", "copy_svg_text", "clear_svg", "optimize",
-	"clear_file_path", "reset_svg"]:
+	for action in ["import", "export", "save", "close_tab", "new_tab", "select_next_tab",
+	"select_previous_tab", "copy_svg_text", "optimize", "reset_svg"]:
 		if ShortcutUtils.is_action_pressed(event, action):
 			get_viewport().set_input_as_handled()
 			ShortcutUtils.fn_call(action)
@@ -252,7 +256,7 @@ func _unhandled_input(event: InputEvent) -> void:
 			ShortcutUtils.fn_call(action)
 			return
 	if event is InputEventKey:
-		Indications.respond_to_key_input(event)
+		State.respond_to_key_input(event)
 
 
 func update_ui_scale() -> void:
@@ -320,8 +324,8 @@ func open_donate() -> void:
 	add_menu(DonateMenu.instantiate())
 
 func open_export() -> void:
-	var width := SVG.root_element.width
-	var height := SVG.root_element.height
+	var width := State.root_element.width
+	var height := State.root_element.height
 	if is_finite(width) and is_finite(height) and width > 0.0 and height > 0.0:
 		add_menu(ExportMenu.instantiate())
 	else:
@@ -333,6 +337,15 @@ func open_export() -> void:
 				Translator.translate("Export"), FileUtils.open_export_dialog.bind(svg_export_data))
 
 
+func update_window_title() -> void:
+	if Configs.savedata.use_filename_for_window_title and\
+	not Configs.savedata.get_active_tab().svg_file_path.is_empty():
+		get_window().title = Configs.savedata.get_active_tab().get_presented_name() +\
+				" - GodSVG"
+	else:
+		get_window().title = "GodSVG"
+
+
 # Helpers
 
 # Used to trigger a mouse motion event, which can be used to update some things,