BlendFunction.java

// Copyright 2002-2003, FreeHEP.
package org.freehep.graphicsio.emf.gdi;

import java.io.IOException;

import org.freehep.graphicsio.emf.EMFConstants;
import org.freehep.graphicsio.emf.EMFInputStream;
import org.freehep.graphicsio.emf.EMFOutputStream;

/**
 * EMF BitmapInfoHeader
 * 
 * @author Mark Donszelmann
 * @version $Id: BlendFunction.java,v 1.4 2009-08-17 21:44:44 murkle Exp $
 */
public class BlendFunction implements EMFConstants {

	public static final int size = 4;

	private int blendOp;

	private int blendFlags;

	private int sourceConstantAlpha;

	private int alphaFormat;

	public BlendFunction(int blendOp, int blendFlags, int sourceConstantAlpha,
			int alphaFormat) {
		this.blendOp = blendOp;
		this.blendFlags = blendFlags;
		this.sourceConstantAlpha = sourceConstantAlpha;
		this.alphaFormat = alphaFormat;
	}

	public BlendFunction(EMFInputStream emf) throws IOException {
		blendOp = emf.readBYTE();
		blendFlags = emf.readBYTE();
		sourceConstantAlpha = emf.readBYTE();
		alphaFormat = emf.readBYTE();
	}

	public void write(EMFOutputStream emf) throws IOException {
		emf.writeBYTE(blendOp);
		emf.writeBYTE(blendFlags);
		emf.writeBYTE(sourceConstantAlpha);
		emf.writeBYTE(alphaFormat);
	}

	@Override
	public String toString() {
		return "BlendFunction";
	}
}