TransformingFlatnessGraphics.java

/*
 * Copyright (c) 2005, the JUNG Project and the Regents of the University of
 * California All rights reserved.
 *
 * This software is open-source under the BSD license; see either "license.txt"
 * or http://jung.sourceforge.net/license.txt for a description.
 *
 * Created on Jul 11, 2005
 */

package edu.uci.ics.jung.visualization.transform.shape;

import java.awt.Graphics2D;
import java.awt.Shape;

import edu.uci.ics.jung.visualization.transform.BidirectionalTransformer;
import edu.uci.ics.jung.visualization.transform.HyperbolicTransformer;


/**
 * subclassed to pass certain operations thru the transformer
 * before the base class method is applied
 * This is useful when you want to apply non-affine transformations
 * to the Graphics2D used to draw elements of the graph.
 * 
 * @author Tom Nelson 
 *
 *
 */
public class TransformingFlatnessGraphics extends TransformingGraphics {
    
	float flatness = 0;

    public TransformingFlatnessGraphics(BidirectionalTransformer transformer) {
        this(transformer, null);
    }
    
    public TransformingFlatnessGraphics(BidirectionalTransformer transformer, Graphics2D delegate) {
        super(transformer, delegate);
    }
    
    public void draw(Shape s, float flatness) {
        Shape shape = null;
        if(transformer instanceof ShapeFlatnessTransformer) {
            shape = ((ShapeFlatnessTransformer)transformer).transform(s, flatness);
        } else {
            shape = ((ShapeTransformer)transformer).transform(s);
        }
        delegate.draw(shape);
        
    }
    
    public void fill(Shape s, float flatness) {
        Shape shape = null;
        if(transformer instanceof HyperbolicTransformer) {
            shape = ((HyperbolicShapeTransformer)transformer).transform(s, flatness);
        } else {
            shape = ((ShapeTransformer)transformer).transform(s);
        }
        delegate.fill(shape);
    }
}