1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.ui.dnd;
14 import java.awt.datatransfer.DataFlavor;
15 import java.awt.datatransfer.StringSelection;
16 import java.awt.datatransfer.Transferable;
17 import java.awt.datatransfer.UnsupportedFlavorException;
18 import java.io.IOException;
20 import org.eclipse.swt.dnd.TextTransfer;
21 import org.eclipse.swt.dnd.TransferData;
22 import org.simantics.db.Session;
23 import org.simantics.db.common.ResourceArray;
24 import org.simantics.db.exception.DatabaseException;
25 import org.simantics.db.service.SerialisationSupport;
26 import org.simantics.utils.ui.workbench.StringMemento;
29 * @author Toni Kalajainen
31 public class ResourceTransferUtils {
33 public static String createStringTransferable(Session s, ResourceArray resources[])
34 throws DatabaseException
36 return createStringTransferable(s, resources, null);
39 public static String createStringTransferable(Session s, ResourceArray resources[], String purpose)
40 throws DatabaseException
42 SerialisationSupport support = s.getService(SerialisationSupport.class);
43 StringMemento memento = new StringMemento();
44 ResourceTransferData transferData = new ResourceTransferData(s, resources);
45 transferData.setPurpose(purpose);
46 transferData.writeToMemento(support, memento);
47 String strData = memento.toString();
51 public static String createStringTransferable(SerialisationSupport serializer, ResourceTransferData transferData)
52 throws DatabaseException
54 StringMemento memento = new StringMemento();
55 transferData.writeToMemento(serializer, memento);
56 String strData = memento.toString();
60 public static Transferable createAwtTransferable(SerialisationSupport serializer, ResourceTransferData transferData)
61 throws DatabaseException
63 String strData = createStringTransferable(serializer, transferData);
64 return new StringSelection(strData);
67 public static TransferData createSwtTextTransferData(SerialisationSupport serializer, ResourceTransferData transferable)
68 throws DatabaseException
70 String strData = createStringTransferable(serializer, transferable);
71 TransferData transferData = new TransferData();
72 TextTransfer.getInstance().javaToNative(strData, transferData);
76 public static ResourceTransferData readStringTransferable(SerialisationSupport serializer, String strData)
77 throws IllegalArgumentException, DatabaseException
79 StringMemento sm = new StringMemento(strData);
80 ResourceTransferData result = new ResourceTransferData();
81 result.readFromMemento(serializer, sm);
85 public static ResourceTransferData readAwtTransferable(SerialisationSupport serializer, Transferable transferable)
86 throws UnsupportedFlavorException, IOException, IllegalArgumentException, DatabaseException
88 if (!transferable.isDataFlavorSupported(DataFlavor.stringFlavor))
89 throw new UnsupportedFlavorException(DataFlavor.stringFlavor);
91 String dropData = (String) transferable.getTransferData(DataFlavor.stringFlavor);
92 ResourceTransferData result = readStringTransferable(serializer, dropData);
96 public static ResourceTransferData readSwtTextTransferable(SerialisationSupport serializer, TransferData transferData)
97 throws IOException, IllegalArgumentException, DatabaseException
99 if (!TextTransfer.getInstance().isSupportedType(transferData))
100 throw new IllegalArgumentException("argument is not text transfer");
101 String dropData = TextTransfer.getInstance().nativeToJava(transferData).toString();
102 ResourceTransferData result = readStringTransferable(serializer, dropData);