| /****************************************************************************** |
| * Copyright (c) 2004, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| ****************************************************************************/ |
| |
| package org.eclipse.gmf.runtime.diagram.ui.render.internal.clipboard; |
| |
| import java.awt.Image; |
| import java.awt.datatransfer.DataFlavor; |
| import java.awt.datatransfer.Transferable; |
| import java.awt.datatransfer.UnsupportedFlavorException; |
| |
| import org.eclipse.gmf.runtime.common.core.util.Trace; |
| import org.eclipse.gmf.runtime.common.ui.util.ICustomData; |
| import org.eclipse.gmf.runtime.diagram.ui.render.internal.DiagramUIRenderDebugOptions; |
| import org.eclipse.gmf.runtime.diagram.ui.render.internal.DiagramUIRenderPlugin; |
| |
| /** |
| * Used for image transfer to the clipboard. |
| * <p>SWT does not currently support image transfer to |
| * the Clipboard. This utility class is provided in |
| * order to transfer an SWT Image to the system |
| * clipboard using AWT image transfer APIs.</p> |
| * <p>A Transferable which implements the capability required to transfer a View. |
| * This Transferable properly supports CUSTOMDATAFLAVOR.</p> |
| * @author sshaw |
| */ |
| public class AWTViewImageTransferable |
| implements Transferable { |
| |
| private ICustomData data = null; |
| |
| private Image image = null; |
| |
| /** DataFlavor. */ |
| static public DataFlavor AWTCUSTOMDATAFLAVOR = new DataFlavor( |
| ICustomData.class, null); |
| |
| /** |
| * Constructor. |
| * |
| * @param data |
| * @param image |
| */ |
| public AWTViewImageTransferable(ICustomData data, Image image) { |
| this.data = data; |
| this.image = image; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.awt.datatransfer.Transferable#getTransferDataFlavors() |
| */ |
| public DataFlavor[] getTransferDataFlavors() { |
| return new DataFlavor[] {AWTCUSTOMDATAFLAVOR, DataFlavor.imageFlavor }; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.awt.datatransfer.Transferable#isDataFlavorSupported(java.awt.datatransfer.DataFlavor) |
| */ |
| public boolean isDataFlavorSupported(DataFlavor flavor) { |
| return (flavor.equals(AWTCUSTOMDATAFLAVOR) && data != null) |
| || (flavor.equals(DataFlavor.imageFlavor) && image != null); |
| } |
| |
| /* (non-Javadoc) |
| * @see java.awt.datatransfer.Transferable#getTransferData(java.awt.datatransfer.DataFlavor) |
| */ |
| public Object getTransferData(DataFlavor flavor) |
| throws UnsupportedFlavorException { |
| if (!isDataFlavorSupported(flavor)) { |
| UnsupportedFlavorException ufe = new UnsupportedFlavorException( |
| flavor); |
| Trace.throwing(DiagramUIRenderPlugin.getInstance(), |
| DiagramUIRenderDebugOptions.EXCEPTIONS_THROWING, getClass(), |
| "getTransferData()", //$NON-NLS-1$ |
| ufe); |
| throw ufe; |
| } |
| |
| if (flavor.equals(AWTCUSTOMDATAFLAVOR)) |
| return data; |
| else if (flavor.equals(DataFlavor.imageFlavor)) |
| return image; |
| |
| return null; |
| } |
| } |