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// Copyright 2001 FreeHEP.
package org.freehep.graphicsio;

import java.awt.geom.Point2D;
import java.awt.geom.Point2D.Double;
import java.io.IOException;
import java.util.Vector;

/**
 * @author Mark Donszelmann
 * @version $Id: freehep-graphicsio/src/main/java/org/freehep/graphicsio/PolylinePathConstructor.java 5641ca92a537 2005/11/26 00:15:35 duns $
 */
public abstract class PolylinePathConstructor extends
        CubicToLinePathConstructor {
    private Vector polyline;

    protected boolean closed;

    protected boolean fill;

    public PolylinePathConstructor(boolean fill) {
        this(fill, 0.025);
    }

    public PolylinePathConstructor(boolean fill, double resolution) {
        super(resolution);
        closed = false;
        this.fill = fill;
    }

    public void move(double x, double y) throws IOException {
        writePolyline();
        polyline = new Vector();
        polyline.add(new Point2D.Double(x, y));
        super.move(x, y);
    }

    public void line(double x, double y) throws IOException {
        // System.out.println("Line "+x+" "+y);
        polyline.add(new Point2D.Double(x, y));
        super.line(x, y);
    }

    public void closePath(double x0, double y0) throws IOException {
        closed = true;
        writePolyline();
        super.closePath(x0, y0);
    }

    public void writePolyline() throws IOException {
        if (polyline != null)
            writePolyline(polyline);
        closed = false;
        polyline = null;
    }

    protected abstract void writePolyline(Vector polyline) throws IOException;
}




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