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