1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.datatransfer;
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3 |
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4 | import java.awt.datatransfer.DataFlavor;
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5 | import java.awt.datatransfer.Transferable;
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6 | import java.awt.datatransfer.UnsupportedFlavorException;
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7 | import java.io.IOException;
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8 | import java.util.Arrays;
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9 | import java.util.Collection;
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10 |
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11 | import javax.swing.TransferHandler;
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12 |
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13 | import org.openstreetmap.josm.Main;
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14 | import org.openstreetmap.josm.data.coor.EastNorth;
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15 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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16 | import org.openstreetmap.josm.gui.datatransfer.importers.AbstractOsmDataPaster;
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17 | import org.openstreetmap.josm.gui.datatransfer.importers.FilePaster;
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18 | import org.openstreetmap.josm.gui.datatransfer.importers.PrimitiveDataPaster;
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19 | import org.openstreetmap.josm.gui.datatransfer.importers.TagTransferPaster;
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20 | import org.openstreetmap.josm.gui.datatransfer.importers.TextTagPaster;
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21 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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22 |
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23 | /**
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24 | * This transfer hanlder provides the ability to transfer OSM data. It allows you to receive files, primitives or tags.
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25 | * @author Michael Zangl
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26 | * @since 10604
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27 | */
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28 | public class OsmTransferHandler extends TransferHandler {
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29 |
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30 | private static final Collection<AbstractOsmDataPaster> SUPPORTED = Arrays.asList(
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31 | new FilePaster(), new PrimitiveDataPaster(),
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32 | new TagTransferPaster(), new TextTagPaster());
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33 |
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34 | @Override
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35 | public boolean canImport(TransferSupport support) {
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36 | // import everything for now, only support copy.
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37 | for (AbstractOsmDataPaster df : SUPPORTED) {
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38 | if (df.supports(support)) {
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39 | return true;
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40 | }
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41 | }
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42 | return false;
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43 | }
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44 |
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45 | @Override
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46 | public boolean importData(TransferSupport support) {
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47 | return importData(support, Main.getLayerManager().getEditLayer(), null);
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48 | }
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49 |
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50 | private boolean importData(TransferSupport support, OsmDataLayer layer, EastNorth center) {
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51 | for (AbstractOsmDataPaster df : SUPPORTED) {
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52 | if (df.supports(support)) {
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53 | try {
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54 | if (df.importData(support, layer, center)) {
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55 | return true;
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56 | }
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57 | } catch (UnsupportedFlavorException | IOException e) {
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58 | Main.warn(e);
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59 | }
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60 | }
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61 | }
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62 | return super.importData(support);
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63 | }
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64 |
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65 | private boolean importTags(TransferSupport support, Collection<? extends OsmPrimitive> primitives) {
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66 | for (AbstractOsmDataPaster df : SUPPORTED) {
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67 | if (df.supports(support)) {
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68 | try {
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69 | if (df.importTagsOn(support, primitives)) {
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70 | return true;
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71 | }
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72 | } catch (UnsupportedFlavorException | IOException e) {
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73 | Main.warn(e);
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74 | }
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75 | }
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76 | }
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77 | return super.importData(support);
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78 | }
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79 |
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80 | /**
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81 | * Paste the current clipboard current at the given position
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82 | * @param editLayer The layer to paste on.
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83 | * @param mPosition The position to paste at.
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84 | */
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85 | public void pasteOn(OsmDataLayer editLayer, EastNorth mPosition) {
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86 | Transferable transferable = ClipboardUtils.getClipboard().getContents(null);
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87 | pasteOn(editLayer, mPosition, transferable);
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88 | }
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89 |
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90 | /**
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91 | * Paste the given clipboard current at the given position
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92 | * @param editLayer The layer to paste on.
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93 | * @param mPosition The position to paste at.
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94 | * @param transferable The transferable to use.
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95 | */
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96 | public void pasteOn(OsmDataLayer editLayer, EastNorth mPosition, Transferable transferable) {
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97 | importData(new TransferSupport(Main.panel, transferable), editLayer, mPosition);
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98 | }
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99 |
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100 | /**
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101 | * Paste the given tags on the primitives.
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102 | * @param primitives The primitives to paste on.
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103 | */
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104 | public void pasteTags(Collection<? extends OsmPrimitive> primitives) {
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105 | Transferable transferable = ClipboardUtils.getClipboard().getContents(null);
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106 | importTags(new TransferSupport(Main.panel, transferable), primitives);
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107 | }
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108 |
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109 | /**
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110 | * Check if any primitive data or any other supported data is available in the clipboard.
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111 | * @return <code>true</code> if any flavor is supported.
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112 | */
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113 | public boolean isDataAvailable() {
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114 | Collection<DataFlavor> available = Arrays.asList(ClipboardUtils.getClipboard().getAvailableDataFlavors());
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115 | for (AbstractOsmDataPaster s : SUPPORTED) {
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116 | if (s.supports(available)) {
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117 | return true;
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118 | }
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119 | }
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120 | return false;
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121 | }
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122 | }
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