setState( isEnabled );
setState( isEnabled && lstMarkers.getItemCount( ) > 0 );
	private void setAllEnabled( boolean isEnabled )	{		setState( isEnabled );		lacLabel.setEnabled( isEnabled || lacLabel.isEnabled( ) );		setEnabled( cmpContent, isEnabled );		setEnabled( btnAddLine, isEnabled );		setEnabled( btnAddRange, isEnabled );		setEnabled( btnRemove, isEnabled );		// TODO disable all?	}