@Override
	public void mouseWheelMoved(MouseWheelEvent me) {
		// TODO Auto-generated method stub
		_zoom -= me.getWheelRotation() * 0.5;
		_zoom = Math.min(_zoom, 30);
		_zoom = Math.max(_zoom, 1);
		_zoomX = _zoom;
		_zoomY = _zoom * 1.58;
		if(_refX + 1.0 / _zoomX > 1)
			_refX = 1 - 1.0 / _zoomX;
		if(_refY + 1.0 / _zoomY > 1)
			_refY = 1 - 1.0 / _zoomY;
		_resized = false;
	}