import gtk, gobject, threading, time

gobject.threads_init()

class T(threading.Thread):
    pause = threading.Event()
    stop = False

    def start(self, *args):
        super(T, self).start()

    def run(self):
        while not self.stop:
            self.pause.wait()
            gobject.idle_add(self.rungui)
            time.sleep(0.1)

    def rungui(self):
        print "printed"

class Start:
	
	def toggle_thread(self, *args):
		thread = T()
		if not thread.is_alive():
			thread.start()
			thread.pause.set()
			self.button.set_label('Pause Thread')
			return

		if thread.pause.is_set():
			thread.pause.clear()
			self.button.set_label('Resume Thread')
		else:
			thread.pause.set()
			self.button.set_label('Pause Thread')
	
	def __init__(self):
		thread = T()
		window = gtk.Window()
		self.button = gtk.ToggleButton('Start Thread')
		self.button.connect('toggled', self.toggle_thread, None)
		window.add(self.button)
		self.button.show()
		window.show()
		
	def main(self):
		gtk.main()
				
if __name__ == "__main__":
	start = Start()
	start.main()