if(height < 0) System.err.println("faggots");
	void recalculateVisibleLines()	{		if(painter == null)			return;		int height = painter.getHeight();		if(height < 0)			System.err.println("faggots");		int lineHeight = painter.getFontMetrics().getHeight();		visibleLines = height / lineHeight;		updateScrollBars();	}