corejava第10版

corejava第10版/v2ch11/imageTransfer/ImageTransferable.java

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+package imageTransfer;
+
+import java.awt.*;
+import java.awt.datatransfer.*;
+
+/**
+ * This class is a wrapper for the data transfer of image objects.
+ */
+public class ImageTransferable implements Transferable
+{
+   private Image theImage;
+
+   /**
+    * Constructs the selection.
+    * @param image an image
+    */
+   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);
+      }
+   }
+}