// If an image is on the system clipboard, this method returns it;
// otherwise it returns null.
public static Image getClipboard() {
Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);
try {
if (t != null && t.isDataFlavorSupported(DataFlavor.imageFlavor)) {
Image text = (Image)t.getTransferData(DataFlavor.imageFlavor);
return text;
}
} catch (UnsupportedFlavorException e) {
} catch (IOException e) {
}
return null;
}
Setting an image on the system clipboard requires a custom Transferable object to hold the image while on the clipboard.
// This method writes a image to the system clipboard.
// otherwise it returns null.
public static void setClipboard(Image image) {
ImageSelection imgSel = new ImageSelection(image);
Toolkit.getDefaultToolkit().getSystemClipboard().setContents(imgSel, null);
}
// This class is used to hold an image while on the clipboard.
public static class ImageSelection implements Transferable {
private Image image;
public ImageSelection(Image image) {
this.image = image;
}
// Returns supported flavors
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[]{DataFlavor.imageFlavor};
}
// Returns true if flavor is supported
public boolean isDataFlavorSupported(DataFlavor flavor) {
return DataFlavor.imageFlavor.equals(flavor);
}
// Returns image
public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {
if (!DataFlavor.imageFlavor.equals(flavor)) {
throw new UnsupportedFlavorException(flavor);
}
return image;
}
}
