Rotate the screen using this GTK taskbar icon

rotate_screen_widget.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

# [SNIPPET_NAME: Screen Rotate]
# [SNIPPET_DESCRIPTION: Shows a widget to rotate screen]
# [SNIPPET_AUTHOR: Eric Fruchter <[email protected]>]
# [SNIPPET_LICENSE: GPL]
#

import gtk
import subprocess
import os

GET_ORIENT_COMMAND = "xrandr -q --verbose|grep LVDS1|cut -d ' ' -f6"
SET_ORIENT_COMMAND = lambda o : "xrandr -o " + o
ORIENTATIONS = ['normal', 'left', 'inverted', 'right']
NORMAL = 'normal'
TABLET = 'right'

class RotateScreenWidget:

	def __init__(self):
		self.tray = gtk.StatusIcon()
		self.tray.set_from_stock(gtk.STOCK_REFRESH) 
		self.tray.connect('button_press_event', self.on_right_click)
		self.tray.set_tooltip(('Screen Rotate'))

	def on_right_click(self, widget, event):
		if event.button == 1:
			self.make_menu(event)

	def make_menu(self, event):
		menu = gtk.Menu()

		# Normal
		rotMenu = gtk.MenuItem("Normal")
		rotMenu.show()
		menu.append(rotMenu)
		rotMenu.connect('activate', self.default_orientation)

		# Tablet
		rotMenu = gtk.MenuItem("Tablet")
		rotMenu.show()
		menu.append(rotMenu)
		rotMenu.connect('activate', self.tablet_orientation)

		# Rotate
		rotMenu = gtk.MenuItem("Clockwise")
		rotMenu.show()
		menu.append(rotMenu)
		rotMenu.connect('activate', self.rotate)

		# Divider
		div = gtk.SeparatorMenuItem()
		div.show()
		menu.append(div)

		# show about dialog
		about = gtk.MenuItem("About")
		about.show()
		menu.append(about)
		about.connect('activate', self.show_about_dialog)

		# add quit item
		quit = gtk.MenuItem("Quit")
		quit.show()
		menu.append(quit)
		quit.connect('activate', gtk.main_quit)

		menu.popup(None, None, gtk.status_icon_position_menu,
				   event.button, event.time, self.tray)

	def get_orientation(self):
		proc = subprocess.Popen([GET_ORIENT_COMMAND], stdout=subprocess.PIPE, shell=True)
		(out, err) = proc.communicate()
		return out.replace('\n', '')

	def rotate(self, widget=None):
		nrot = (ORIENTATIONS.index(self.get_orientation()) + 1) % len(ORIENTATIONS)
		self.set_rotate(ORIENTATIONS[nrot])

	def set_rotate(self, orientation):
		os.system('xrandr -o ' + orientation)

	def default_orientation(self, widget):
		self.set_rotate(NORMAL)

	def tablet_orientation(self, widget):
		self.set_rotate(TABLET)

	def  show_about_dialog(self, widget):
		about_dialog = gtk.AboutDialog()
		about_dialog.set_destroy_with_parent (True)
		about_dialog.set_icon_name ("Rotate Screen")
		about_dialog.set_name('Rotate Screen')
		about_dialog.set_version('1.0')
		about_dialog.set_copyright("(C) 2013 Eric Fruchter")
		about_dialog.set_comments(("Program to flip the screen using xrandr"))
		about_dialog.set_authors(['Eric Fruchter <[email protected]>'])
		about_dialog.run()
		about_dialog.destroy()

if __name__ == "__main__":
	RotateScreenWidget()
	gtk.main()