imageprinter.java

java 3d编程的一些例子源代码

/*
 * $RCSfile: ImagePrinter.java,v $
 *
 * Copyright (c) 2006 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: 1.1 $
 * $Date: 2006/02/01 01:32:53 $
 * $State: Exp $
 */

package org.jdesktop.j3d.examples.print_canvas3d;

import java.awt.print.*;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.awt.geom.AffineTransform;

class ImagePrinter implements Printable, ImageObserver {
    BufferedImage bImage;

    public int print(Graphics g, PageFormat pf, int pi)
	throws PrinterException {


	if (pi >= 1) {
	    return Printable.NO_SUCH_PAGE;
	}

	Graphics2D g2d = (Graphics2D)g;
	//g2d.translate(pf.getImageableX(), pf.getImageableY());
	AffineTransform t2d = new AffineTransform();
	t2d.translate(pf.getImageableX(), pf.getImageableY());
	double xscale  = pf.getImageableWidth() / (double)bImage.getWidth();
	double yscale  = pf.getImageableHeight() / (double)bImage.getHeight();
	double scale = Math.min(xscale, yscale);
	t2d.scale(scale, scale);
	try {
	    g2d.drawImage(bImage,t2d, this);
	}
	catch (Exception ex) {
	    ex.printStackTrace();
	    return Printable.NO_SUCH_PAGE;
	}
	return Printable.PAGE_EXISTS;
    }

    void print() {
	PrinterJob printJob = PrinterJob.getPrinterJob();
	PageFormat pageFormat = printJob.defaultPage();
	pageFormat.setOrientation(PageFormat.LANDSCAPE);
	pageFormat = printJob.validatePage(pageFormat);
	printJob.setPrintable(this, pageFormat);
	if (printJob.printDialog()) {
	    try {
		printJob.print();
	    }
	    catch (PrinterException ex) {
		ex.printStackTrace();
	    }
	}
    }

    public boolean imageUpdate(Image img,
			       int infoflags,
			       int x,
			       int y,
			       int width,
			       int height) {
	return false;
    }

    ImagePrinter(BufferedImage bImage) {
	this.bImage = bImage;
    }
}