Pick color and store #HEX in system clipboard

color_picker

#!/usr/bin/env python

import gtk
import gobject
import pynotify
import sys

# Clipboard object
clipboard = None

# Initialize system notifications
pynotify.init("Color picker")

# Delay ID to implement "pause" for color changing events
delay = None

def main(argv):
	global clipboard

	# Create and run color selection dialog
	dialog = gtk.ColorSelectionDialog("Color picker")
	dialog.colorsel.connect("color-changed", copyColorDelayed) # Signal connection
	response = dialog.run()
	if response == gtk.RESPONSE_OK:
		copyColor(dialog.colorsel.get_current_color())

	# Need to store clipboard to prevent reset when exiting
	if clipboard != None:
		clipboard.set_can_store(None)
		clipboard.store()

	# Close dialog: this ends GTK main thread
	dialog.destroy()

def copyColor(color):
	global clipboard

	# Parse color to HEX string
	rgb = (color.red / 257, color.green / 257, color.blue / 257)
	hexcolor = ('#%02x%02x%02x' % rgb).upper()
	print '{} <- {}'.format(hexcolor, str(color))

	# Copy HEX to clipboard
	if clipboard == None: clipboard = gtk.Clipboard()
	clipboard.set_text(hexcolor)

	# Show notification
	notification = pynotify.Notification(hexcolor, "Color copied to clipboard")
	notification.set_timeout(2000)
	notification.show()

	return False

def copyColorDelayed(colorSelection):
	global delay

	# Sets color in clipboard only when color selection is idle for a certain amount of time
	if delay != None: gobject.source_remove(delay)
	delay = gobject.timeout_add(250, copyColor, colorSelection.get_current_color())

if __name__ == '__main__': sys.exit(main(sys.argv))