imagetransfertest.java

windows画图板.类似于windows自带的画图程序!

 import java.awt.*;
 import java.awt.datatransfer.*;
 /**
118.  * This class is a wrapper for the data transfer of image objects.
119.  */
 class ImageTransferable implements Transferable
 {
    /**
123.     * Constructs the selection.
124.     * @param image an image
125.     */
    public ImageTransferable(Image image)
    {
       theImage = image;
    }

    public DataFlavor[] getTransferDataFlavors()
    {
       return new DataFlavor[] { DataFlavor.imageFlavor };

    }
    public boolean isDataFlavorSupported(DataFlavor flavor)
    {
       return flavor.equals(DataFlavor.imageFlavor);
    }

    public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException
    {
       if (flavor.equals(DataFlavor.imageFlavor))
       {
          return theImage;
       }
      else
       {
          throw new UnsupportedFlavorException(flavor);
       }
    }

    private Image theImage;
 }