def checkReszie(self):
        '''Checks if the window was resized.'''
        if not self.resized:
            oldypx = self.ypx
            oldxpx = self.xpx
            self.ypx = self.figure.get_size_inches()[1]*self.figure.dpi
            self.xpx = self.figure.get_size_inches()[0]*self.figure.dpi
            if (oldypx != self.ypx) or (oldxpx != self.xpx):
                self.resized = True
            else:
                self.resized = False
Checks if the window was resized.