public ImageCanvas(ViewerUIF view) { this.view = view;
public ImageCanvas(ViewerUIF view, ViewerCtrl control) { this.view = view; this.control = control; filters = new ArrayList(); manager = new ImageCanvasMng(this);
	public ImageCanvas(ViewerUIF view)	{		this.view = view;        magFactor = 1.0;		setBackground(Viewer.BACKGROUND_COLOR); 		setDoubleBuffered(true);	}