code: private void setActiveGUI( final boolean isEnabled ) {
  		SwingUtilities.invokeLater(new Runnable() {
  			public void run() {
  				toolbar.setEnabled(isEnabled);
  				for( JComboBox b : algBoxes ) {
  					b.setEnabled(isEnabled);
  				}
  				for( JComponent b : addedComponents ) {
  					b.setEnabled(isEnabled);
  				}
  				imageBox.setEnabled(isEnabled);
  			}
  		});
  	}
docs: Enables/disables the ability to interact with the algorithms GUI.