text: ##########################################################################
  #
  #  Copyright (c) 2013, Image Engine Design Inc. All rights reserved.
  #
  #  Redistribution and use in source and binary forms, with or without
  #  modification, are permitted provided that the following conditions are
  #  met:
  #
  #      * Redistributions of source code must retain the above
  #        copyright notice, this list of conditions and the following
  #        disclaimer.
  #
  #      * Redistributions in binary form must reproduce the above
  #        copyright notice, this list of conditions and the following
  #        disclaimer in the documentation and/or other materials provided with
  #        the distribution.
  #
  #      * Neither the name of John Haddon nor the names of
  #        any other contributors to this software may be used to endorse or
  #        promote products derived from this software without specific prior
  #        written permission.
  #
  #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  #  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  #  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  #  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  #  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  #  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  #  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  #  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  #  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  #  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  #  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  #
  ##########################################################################
  
  import GafferUI
  
  QtGui = GafferUI._qtImport( "QtGui" )
  
  # The pointer is specified via the C++ Pointer class, but to actually change
  # the qt pointer we use this python code which is triggered by Pointer::changedSignal().
  
  __cursorOverridden = False
  def __pointerChanged() :
  
  	global __cursorOverridden
  
  	pointer = GafferUI.Pointer.getCurrent()
  	application = QtGui.QApplication.instance()
  
  	if pointer is None :
  		if __cursorOverridden :
  			application.restoreOverrideCursor()
  			__cursorOverridden = False
  	else :
  		pixmap = GafferUI.Image._qtPixmapFromImagePrimitive( pointer.image() )
  		cursor = QtGui.QCursor( pixmap, pointer.hotspot().x, pointer.hotspot().y )
  		if __cursorOverridden :
  			application.changeOverrideCursor( cursor )
  		else :
  			application.setOverrideCursor( cursor )
  			__cursorOverridden = True
  
  __changedConnection = GafferUI.Pointer.changedSignal().connect( __pointerChanged )
  