An asterisk is added to the tab name if there are changes

The window title also changes when switching tabs. And yes, "has_changed_changed" is a stupid method name, I'll find another one sometime later.

src/Autoload/Global.gd

@@ -472,7 +472,7 @@ func clear_frames() -> void:
 	play_forward.pressed = false
 	animation_timer.stop()
 
-	self.window_title = "(" + tr("untitled") + ") - Pixelorama " + Global.current_version
+	self.window_title = tr("untitled") + " - Pixelorama " + Global.current_version
 	OpenSave.current_save_path = ""
 	control.get_node("ExportDialog").was_exported = false
 	control.file_menu.set_item_text(3, tr("Save..."))

src/Autoload/OpenSave.gd

@@ -277,6 +277,7 @@ func save_pxo_file(path : String, autosave : bool) -> void:
 			Global.notification_label("File saved")
 
 		if backup_save_path == "":
+			Global.current_project.name = path.get_file()
 			Global.window_title = path.get_file() + " - Pixelorama " + Global.current_version
 
 	else:

src/Classes/Project.gd

@@ -2,11 +2,11 @@ class_name Project extends Reference
 # A class for project properties.
 
 
-var name := ""
+var name := "" setget name_changed
 var size : Vector2
 var undo_redo : UndoRedo
 var undos := 0 # The number of times we added undo properties
-var has_changed := false
+var has_changed := false setget has_changed_changed
 var frames := [] setget frames_changed # Array of Frames (that contain Cels)
 var layers := [] setget layers_changed # Array of Layers
 var current_frame := 0 setget frame_changed
@@ -117,6 +117,14 @@ func change_project() -> void:
 
 	Global.canvas.update()
 	Global.transparent_checker._ready()
+	Global.window_title = "%s - Pixelorama %s" % [name, Global.current_version]
+	if has_changed:
+		Global.window_title = Global.window_title + "(*)"
+
+
+func name_changed(value : String) -> void:
+	name = value
+	Global.tabs.set_tab_title(Global.tabs.current_tab, name)
 
 
 func frames_changed(value : Array) -> void:
@@ -305,3 +313,11 @@ func set_timeline_first_and_last_frames() -> void:
 			if current_frame + 1 >= tag.from && current_frame + 1 <= tag.to:
 				Global.animation_timeline.first_frame = tag.from - 1
 				Global.animation_timeline.last_frame = min(frames.size() - 1, tag.to - 1)
+
+
+func has_changed_changed(value : bool) -> void:
+	has_changed = value
+	if value:
+		Global.tabs.set_tab_title(Global.tabs.current_tab, name + "(*)")
+	else:
+		Global.tabs.set_tab_title(Global.tabs.current_tab, name)

src/Main.gd

@@ -18,7 +18,7 @@ func _ready() -> void:
 	setup_image_menu()
 	setup_help_menu()
 
-	Global.window_title = "(" + tr("untitled") + ") - Pixelorama " + Global.current_version
+	Global.window_title = tr("untitled") + " - Pixelorama " + Global.current_version
 
 	Global.current_project.layers[0].name = tr("Layer") + " 0"
 	Global.layers_container.get_child(0).label.text = Global.current_project.layers[0].name
@@ -225,9 +225,7 @@ func handle_loading_files(files : PoolStringArray) -> void:
 		if file.get_extension().to_lower() == "pxo":
 				_on_OpenSprite_file_selected(file)
 		else:
-			$ImportSprites.new_frame = false
 			$ImportSprites._on_ImportSprites_files_selected([file])
-			$ImportSprites.new_frame = true
 
 
 func _notification(what : int) -> void:

src/UI/Dialogs/ImportSprites.tscn

@@ -24,6 +24,7 @@ margin_bottom = 312.0
 margin_right = 161.0
 margin_bottom = 304.0
 mouse_default_cursor_shape = 2
+disabled = true
 text = "Import as new frame"
 
 [node name="ImportSpritesheet" type="CheckBox" parent="HBoxContainer2"]