snapframe.java

里面是关于jmf编程的例子,希望能给初学者带来一些帮助

/*
 * @(#)SnapFrame.java	1.1 00/02/10
 *
 * Copyright (c) 1999 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 *
 * 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 AND ITS LICENSORS SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE 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 SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * This software is not designed or intended for use in on-line control of
 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
 * the design, construction, operation or maintenance of any nuclear
 * facility. Licensee represents and warrants that it will not use or
 * redistribute the Software for such purposes.
 */

package jmapps.ui;

import java.awt.*;
import java.awt.event.*;

public class SnapFrame extends JMFrame {

    private Dimension   dimImage;
    private Canvas      canvasImage;
    private Image       image;


    public SnapFrame ( Image image ) {
        this ( image, null );
    }

    public SnapFrame ( Image image, Frame frameOwner ) {
        super ( frameOwner );

        setLayout ( new BorderLayout() );

        canvasImage = new Canvas() {
            public Dimension getPreferredSize () {
                return ( dimImage );
            }
            public void paint ( Graphics g ) {
                super.paint ( g );
                g.drawImage ( getImage(), 0, 0, this );
            }
        };
        add ( canvasImage, BorderLayout.CENTER );
        setImage ( image );
    }

    public void setImage ( Image image ) {

        this.image = image;
        dimImage = new Dimension ( image.getWidth(this), image.getHeight(this) );
	    pack();
        setVisible(true);
	    canvasImage.repaint();
    }

    public Image getImage () {
        return ( image );
    }

    public void windowClosing ( WindowEvent event ) {
        this.setVisible ( false );
    }


}