// Copyright 2002, 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;
import org.freehep.graphicsio.emf.EMFTag;
import org.freehep.graphicsio.emf.EMFRenderer;
/**
* SetROP2 TAG.
*
* @author Mark Donszelmann
* @version $Id: freehep-graphicsio-emf/src/main/java/org/freehep/graphicsio/emf/gdi/SetROP2.java c0f15e7696d3 2007/01/22 19:26:48 duns $
*/
public class SetROP2 extends EMFTag implements EMFConstants {
private int mode;
public SetROP2() {
super(20, 1);
}
public SetROP2(int mode) {
this();
this.mode = mode;
}
public EMFTag read(int tagID, EMFInputStream emf, int len)
throws IOException {
return new SetROP2(emf.readDWORD());
}
public void write(int tagID, EMFOutputStream emf) throws IOException {
emf.writeDWORD(mode);
}
public String toString() {
return super.toString() + "\n mode: " + mode;
}
/**
* displays the tag using the renderer
*
* @param renderer EMFRenderer storing the drawing session data
*/
public void render(EMFRenderer renderer) {
// The SetROP2 function sets the current foreground mix mode.
// GDI uses the foreground mix mode to combine pens and interiors
// of filled objects with the colors already on the screen. The
// foreground mix mode defines how colors from the brush or pen
// and the colors in the existing image are to be combined.
renderer.setRop2(mode);
}
}