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 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

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import java.awt.*;

import java.awt.datatransfer.*;

import java.awt.image.BufferedImage;

import java.io.IOException;

import java.util.Vector;

/*

 * @test

 * @summary To check Whether java.awt.Image can be transferred through the

 *          system clipboard

 * @author Jitender(jitender.singh@eng.sun.com) area=AWT

 * @author dmitriy.ermashov@oracle.com

 * @library ../../../../lib/testlibrary

 * @build ExtendedRobot

 * @run main ImageTransferTest

 */

public class ImageTransferTest  {

    TestFrame frame1, frame2;

    Image image1, image2;

    DataFlavor imageFlavor;

    public static void main(String[] args) throws Exception {

        new ImageTransferTest().doTest();

    }

    class TestFrame extends Frame {

        boolean show;

        Image img;

        public TestFrame(boolean show, Image img){

            this.show = show;

            this.img = img;

        }

        public void paint( Graphics g ){

            if (show)

                g.drawImage( this.img, 30, 30, this );

        }

    }

    class TransferableObject implements Transferable, ClipboardOwner {

        Object data;

        DataFlavor[] dfs;

        public TransferableObject(Object data) throws Exception {

            Vector v = new Vector();

            imageFlavor = new DataFlavor("image/x-java-Image;class=java.awt.Image");

            imageFlavor.setHumanPresentableName("Java Image Flavor Object");

            if( data instanceof java.awt.Image )

                v.addElement(imageFlavor);

            dfs = new DataFlavor[v.size()];

            v.copyInto(dfs);

            for (int j = 0; j < dfs.length; j++)

                System.out.println(" in constructor flavor : " + dfs[j]);

            this.data = data;

        }

        public Object getTransferData(DataFlavor flavor)

                throws UnsupportedFlavorException,IOException {

            System.out.println(" **************");

            System.out.println(" The flavor passed to retrive the data :-" + flavor);

            System.out.println(" The flavors supported");

            for (int j = 0; j < dfs.length; j++)

                System.out.println(" jitu flavor : " + dfs[j]);

            System.out.println(" **************");

            if(!isDataFlavorSupported(flavor))

                throw new UnsupportedFlavorException(flavor);

            if(imageFlavor.equals(flavor)){

                if( data instanceof java.awt.Image )

                    return data;

            }

            return null;

        }

        public DataFlavor[] getTransferDataFlavors() { return dfs; }

        public boolean isDataFlavorSupported(DataFlavor flavor) {

            for (int i = 0 ; i < dfs.length; i++)

                if (dfs[i].match(flavor)) return true;

            return false;

        }

        public void lostOwnership(Clipboard clip,Transferable contents) {

            System.out.println(" LostOwnership is invoked");

        }

    }

    ImageTransferTest() throws Exception {

        BufferedImage img = new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB);

        Graphics g = img.createGraphics();

        g.setColor(Color.WHITE);

        g.fillRect(0, 0, 100, 100);

        g.setColor(Color.RED);

        g.fillRect(20, 20, 60, 60);

        g.dispose();

        image1 = img;

        frame1 = new TestFrame(true, image1);

        frame2 = new TestFrame(false, null);

        System.out.println("Inside contrucor...");

        imageFlavor = new DataFlavor("image/x-java-Image;class=java.awt.Image");

        imageFlavor.setHumanPresentableName("Java Image Flavor Object");

        frame1.setBounds(10,350,200,200);

        frame2.setBounds(250,350,200,200);

        frame1.setVisible(true);

        frame2.setVisible(true);

        frame1.repaint();

    }

    public void compareImages() {

        if (image2 == image1)

            System.out.println("Pasted Image is same as that one copied !");

        else

            if (image2 != image1)

                throw new RuntimeException("Image retreived from the Clipboard is not the same " +

                        "image that was set to the Clipboard");

    }

    public void doTest() throws Exception {

        ExtendedRobot robot = new ExtendedRobot();

        robot.waitForIdle(2000);

        TransferableObject imagedata = new TransferableObject(image1);

        Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();

        System.out.println("copying image...");

        if (imagedata != null) {

            clip.setContents(imagedata, imagedata);

        } else {

            System.out.println("Transferable object is null");

        }

        Transferable content = clip.getContents(this);

        if (content != null && (content.isDataFlavorSupported(imageFlavor))) {

            System.out.println("jitu after paste" + content);

            image2 = (Image) content.getTransferData(imageFlavor);

        } else {

            System.out.println("Contents of the clipboard is null");

        }

        frame2.img = image2;

        frame2.show = true;

        frame2.repaint();

        robot.waitForIdle(2000);

        compareImages();

    }

}