imagecomponent2dstate.java

JAVA3D矩陈的相关类

/*
 * $RCSfile: ImageComponent2DState.java,v $
 *
 * Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistribution of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
 * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
 * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
 * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
 * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
 * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
 * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * You acknowledge that this software is not designed, licensed or
 * intended for use in the design, construction, operation or
 * maintenance of any nuclear facility.
 *
 * $Revision: 1.4 $
 * $Date: 2007/02/09 17:20:34 $
 * $State: Exp $
 */

package com.sun.j3d.utils.scenegraph.io.state.javax.media.j3d;

import java.io.IOException;
import java.io.ByteArrayOutputStream;
import java.io.ByteArrayInputStream;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.awt.Point;
import java.awt.image.*;
import javax.media.j3d.SceneGraphObject;
import javax.media.j3d.ImageComponent2D;

import com.sun.j3d.utils.scenegraph.io.retained.Controller;
import com.sun.j3d.utils.scenegraph.io.retained.SymbolTableData;

import javax.swing.*;
import java.awt.*;

public class ImageComponent2DState extends ImageComponentState {

    private BufferedImage bufferedImage;
    
    public ImageComponent2DState( SymbolTableData symbol, Controller control ) {
	super( symbol, control );
    }

    public void writeConstructorParams( DataOutput out ) throws 
							IOException {
        super.writeConstructorParams( out );    
	ImageComponent2D ic = ((ImageComponent2D)node);

	// If the BufferedImage is associated with the ImageComponent2D by
	// reference then we don't know much about it, so it'd be hard to
	// save.  So we copy it into an ImageComponent2D and then copy it
	// out.  It comes out in a known format so it's easier to save.
	if ( ic.isByReference() ) {
	    ImageComponent2D noByRef = new ImageComponent2D(
		ic.getFormat(), ic.getRenderedImage(), false, ic.isYUp() );
	    bufferedImage = noByRef.getImage();
	} else bufferedImage = ic.getImage();
        
        writeBufferedImage( out, bufferedImage );
    }

    public void readConstructorParams( DataInput in ) throws
							IOException {

       super.readConstructorParams( in ); 
       
       bufferedImage = (BufferedImage)readBufferedImage( in );
       
    }

    protected SceneGraphObject createNode( Class j3dClass ) {
        return super.createNode( j3dClass, new Class[] { Integer.TYPE,
                                                          bufferedImage.getClass(),
                                                          Boolean.TYPE,
                                                          Boolean.TYPE },
                                            new Object[] { new Integer(format),
                                                           bufferedImage,
                                                           new Boolean( byReference ),
                                                           new Boolean( yUp ) } );
    }
    
    protected javax.media.j3d.SceneGraphObject createNode() {
        return new ImageComponent2D( format, bufferedImage, byReference, yUp );
    }
}