# button.py
#    A simple Button widget.

from graphics import *

class Button:

	"""A button is a labeled rectangle in a window.
	It is activated or deactivated with the activate()
	and deactivate() methods. The clicked(p) method
	returns true if the button is active and p is inside it."""

	def __init__(self, win, center, width, height, label):
		""" Creates a rectangular button, eg:
		qb = Button(myWin, Point(30,25), 20, 10, 'Quit') """ 

		w,h = width/2.0, height/2.0
		x,y = center.getX(), center.getY()
		self.xmax, self.xmin = x+w, x-w
		self.ymax, self.ymin = y+h, y-h
		p1 = Point(self.xmin, self.ymin)
		p2 = Point(self.xmax, self.ymax)
		self.rect = Rectangle(p1,p2)
		self.rect.setFill('lightgray')
		self.rect.draw(win)
		self.label = Text(center, label)
		self.label.draw(win)
		self.deactivate()

	def clicked(self, p):
		"Returns true if button active and p is inside"
		return self.active and \
			self.xmin <= p.getX() <= self.xmax and \
			self.ymin <= p.getY() <= self.ymax

	def getLabel(self):
		"Returns the label string of this button."
		return self.label.getText()

	def activate(self):
		"Sets this button to 'active'."
		self.label.setFill('black')
		self.rect.setWidth(2)
		self.active = True

	def deactivate(self):
		"Sets this button to 'inactive'."
		self.label.setFill('darkgrey')
		self.rect.setWidth(1)
		self.active = False