// Copyright 2002, FreeHEP.
package org.freehep.graphicsio.emf.gdi;
import com.google.code.appengine.awt.Point;
import com.google.code.appengine.awt.Rectangle;
import java.io.IOException;
import org.freehep.graphicsio.emf.EMFInputStream;
import org.freehep.graphicsio.emf.EMFOutputStream;
import org.freehep.graphicsio.emf.EMFTag;
/**
* PolyPolyline TAG.
*
* @author Mark Donszelmann
* @version $Id: PolyPolyline.java 10510 2007-01-30 23:58:16Z duns $
*/
public class PolyPolyline extends AbstractPolyPolyline {
private int start, end;
public PolyPolyline() {
super(7, 1, null, null, null);
}
public PolyPolyline(
Rectangle bounds,
int start,
int end,
int[] numberOfPoints,
Point[][] points) {
super(7, 1, bounds, numberOfPoints, points);
this.start = start;
this.end = Math.min(end, numberOfPoints.length - 1);
}
public EMFTag read(
int tagID,
EMFInputStream emf,
int len)
throws IOException {
Rectangle bounds = emf.readRECTL();
int np = emf.readDWORD();
/* int totalNumberOfPoints = */ emf.readDWORD();
int[] pc = new int[np];
Point[][] points = new Point[np][];
for (int i = 0; i < np; i++) {
pc[i] = emf.readDWORD();
points[i] = new Point[pc[i]];
}
for (int i = 0; i < np; i++) {
points[i] = emf.readPOINTL(pc[i]);
}
return new PolyPolyline(bounds, 0, np - 1, pc, points);
}
public void write(int tagID, EMFOutputStream emf) throws IOException {
int[] numberOfPoints = getNumberOfPoints();
Point[][] points = getPoints();
emf.writeRECTL(getBounds());
emf.writeDWORD(end - start + 1);
int c = 0;
for (int i = start; i < end + 1; i++) {
c += numberOfPoints[i];
}
emf.writeDWORD(c);
for (int i = start; i < end + 1; i++) {
emf.writeDWORD(numberOfPoints[i]);
}
for (int i = start; i < end + 1; i++) {
emf.writePOINTL(numberOfPoints[i], points[i]);
}
}
}