widgets.program_run = nf.makewidget(root_window, Button, ".toolbar.program_run")
widgets.program_pause = nf.makewidget(root_window, Button, ".toolbar.program_pause")

def task_pauseresume():
	widgets.program_pause.invoke()
	
def task_run():
	widgets.program_run.invoke()

root_window.unbind("r") # commands.task_run
root_window.unbind("p") # commands.task_pause
root_window.unbind("s")	# commands.task_resume
root_window.bind("r", lambda event: rps_cycle())

def rps_cycle():

	s.poll()
	
	if( s.task_mode == linuxcnc.MODE_MANUAL ):
		if( s.interp_state == linuxcnc.INTERP_IDLE ):
			task_run()
	elif( s.task_mode == linuxcnc.MODE_AUTO ):
		if( s.interp_state == linuxcnc.INTERP_WAITING or s.interp_state == linuxcnc.INTERP_PAUSED ):
			task_pauseresume()
	elif( s.task_mode == linuxcnc.MODE_MDI ):
		if( s.interp_state == linuxcnc.INTERP_READING or s.interp_state == linuxcnc.INTERP_PAUSED ):
			task_pauseresume()