extends Control

onready var tree
var selected_label

var tree_item_1
var tree_item_2
var tree_item_3

func _ready():
	var vb = VBoxContainer.new()
	vb.set_position(Vector2(100,100))
	var hb = HBoxContainer.new()
	add_child(vb)
	vb.add_child(hb)
	
	selected_label = Label.new()
	selected_label.set_custom_minimum_size(Vector2(150,0))
	hb.add_child(selected_label)
	
	var hb2 = HBoxContainer.new()
	vb.add_child(hb2)
	
	var mode = OptionButton.new()
	mode.add_item("0 - Single")
	mode.add_item("1 - Row")
	mode.add_item("2 - Multi")
	mode.set_custom_minimum_size(Vector2(100,0))
	hb2.add_child(mode)
	mode.connect("item_selected", self, "mode_changed")
	
	var deselect_all = Button.new()
	deselect_all.set_text("Deselect All")
	deselect_all.connect("button_up", self, "deselect_all")
	hb.add_child(deselect_all)
	
	var deselect_item1 = Button.new()
	deselect_item1.set_text("Deselect Item 1")
	deselect_item1.connect("button_up", self, "deselect_item1")
	hb.add_child(deselect_item1)
	
	var deselect_item2 = Button.new()
	deselect_item2.set_text("Deselect Item 2")
	deselect_item2.connect("button_up", self, "deselect_item2")
	hb.add_child(deselect_item2)
	
	var deselect_item3 = Button.new()
	deselect_item3.set_text("Deselect Item 3")
	deselect_item3.connect("button_up", self, "deselect_item3")
	hb.add_child(deselect_item3)
	
	tree = Tree.new()
	tree.set_columns(2)
	tree.set_custom_minimum_size(Vector2(300,300))
	
	tree.select_mode = tree.SELECT_SINGLE
	
	tree.set_column_min_width( 0, 10 )
	tree.set_column_min_width( 1, 10 )
	tree.hide_root = true
	
	add(tree, "root")
	tree_item_1 = add(tree, "1")
	tree_item_2 = add(tree, "2")
	tree_item_3 = add(tree, "3")
	
	vb.add_child(tree)

func _process(delta):
	selected_label.set_text(str(tree.get_selected()))

func deselect_all():
	tree.deselect_all()

func deselect_item1():
	tree_item_1.deselect_all()

func deselect_item2():
	tree_item_2.deselect_all()

func deselect_item3():
	tree_item_3.deselect_all()
	
func mode_changed(id):
	tree.select_mode = id

func add(tree, name):
	var tree_item = tree.create_item(tree.get_root())
	tree_item.set_text(0, name)
	tree_item.set_cell_mode( 1, tree_item.CELL_MODE_STRING)
	tree_item.set_text(1, name)

	var label = Label.new()
	label.set_text(name)
	tree_item.set_metadata(0, label)
	
	return tree_item