int height = getFixedCellHeight();
int height = safeGetFixedCellHeight();
	public int snapIndex( int y ) {		int height = getFixedCellHeight();		int row = (int) Math.floor( ( (float) y / height ) + .5 );		if ( row > getModel().getSize() ) {			row = getModel().getSize();		}		return row;	}