extends Button
#var p : DesktopWindow
# add this script to all resize handle buttons, which should be direct
# child of object that is "class_name DesktopWindow"
@onready var parent = $".."

var tracking:bool=false
var start_position:Vector2
var start_size:Vector2
# Called when the node enters the scene tree for the first time.
func _ready():
	#var par = get_parent()
	if parent is DesktopWindow:
		#p = par
		button_down.connect(_on_button_down);
		button_up.connect(_on_button_up);
	else:
		print("error we expected to be under desktopwindow instead ",parent)
	# setup the handler
	#pass
	
#ISSUE: maximize screen, make window big, unmaximize screen, window now too big
#and resizer box is stuck off the bottom of the screen...
var oldWindowSize:Vector2i
func fixToBigForScreen():
	var window := get_window()
	if oldWindowSize.x == 0:
		oldWindowSize = window.size
		return
	var scalex:float = float(window.size.x)/float(oldWindowSize.x)
	var scaley:float= float(window.size.y)/float(oldWindowSize.y)
	if oldWindowSize != window.size:
		print(scalex," ",scaley)
		parent.size.x = int(float(parent.size.x)*scalex)
		parent.size.y = int(float(parent.size.y)*scaley)
	oldWindowSize=window.size

func _input(e):
	#print (e)
	#pass
	if e is InputEventMouseMotion and tracking:
		var moved:Vector2 = e.position - start_position
		#print(moved)
		parent.size = start_size + moved
		#print(e)
		
func _on_button_down():
	var p = get_parent()
	if p is DesktopWindow:
	#	print(p)
		tracking=true
		start_position = get_global_mouse_position()
		start_size = parent.size
		#print(start_position," ",start_size)
	
	#else:
		#print("not")
func _on_button_up():
	tracking=false
# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(_delta):
	#pass
	fixToBigForScreen()