1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.actions;
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3 |
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4 | import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
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5 | import static org.openstreetmap.josm.tools.I18n.tr;
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6 |
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7 | import java.awt.event.ActionEvent;
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8 | import java.awt.event.KeyEvent;
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9 | import java.util.Collection;
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10 | import java.util.Collections;
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11 | import java.util.List;
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12 |
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13 | import org.openstreetmap.josm.Main;
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14 | import org.openstreetmap.josm.gui.dialogs.LayerListDialog;
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15 | import org.openstreetmap.josm.gui.layer.Layer;
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16 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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17 | import org.openstreetmap.josm.gui.util.GuiHelper;
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18 | import org.openstreetmap.josm.tools.ImageProvider;
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19 | import org.openstreetmap.josm.tools.Shortcut;
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20 |
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21 | public class MergeLayerAction extends AbstractMergeAction {
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22 |
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23 | public MergeLayerAction() {
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24 | super(tr("Merge layer"), "dialogs/mergedown",
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25 | tr("Merge the current layer into another layer"),
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26 | Shortcut.registerShortcut("system:merge", tr("Edit: {0}",
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27 | tr("Merge")), KeyEvent.VK_M, Shortcut.CTRL),
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28 | true, "action/mergelayer", true);
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29 | putValue("help", ht("/Action/MergeLayer"));
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30 | }
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31 |
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32 | protected void doMerge(List<Layer> targetLayers, final Collection<Layer> sourceLayers) {
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33 | final Layer targetLayer = askTargetLayer(targetLayers);
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34 | if (targetLayer == null)
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35 | return;
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36 | Main.worker.submit(new Runnable() {
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37 | @Override
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38 | public void run() {
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39 | boolean layerMerged = false;
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40 | for (Layer sourceLayer: sourceLayers) {
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41 | if (sourceLayer != null && sourceLayer != targetLayer) {
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42 | if (sourceLayer instanceof OsmDataLayer && targetLayer instanceof OsmDataLayer
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43 | && ((OsmDataLayer)sourceLayer).isUploadDiscouraged() != ((OsmDataLayer)targetLayer).isUploadDiscouraged()) {
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44 | if (warnMergingUploadDiscouragedLayers(sourceLayer, targetLayer)) {
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45 | break;
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46 | }
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47 | }
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48 | targetLayer.mergeFrom(sourceLayer);
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49 | Main.map.mapView.removeLayer(sourceLayer);
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50 | layerMerged = true;
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51 | }
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52 | }
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53 | if (layerMerged) {
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54 | Main.map.mapView.setActiveLayer(targetLayer);
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55 | }
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56 | }
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57 | });
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58 | }
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59 |
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60 | public void merge(List<Layer> sourceLayers) {
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61 | doMerge(sourceLayers, sourceLayers);
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62 | }
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63 |
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64 | public void merge(Layer sourceLayer) {
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65 | if (sourceLayer == null)
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66 | return;
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67 | List<Layer> targetLayers = LayerListDialog.getInstance().getModel().getPossibleMergeTargets(sourceLayer);
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68 | if (targetLayers.isEmpty()) {
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69 | warnNoTargetLayersForSourceLayer(sourceLayer);
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70 | return;
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71 | }
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72 | doMerge(targetLayers, Collections.singleton(sourceLayer));
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73 | }
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74 |
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75 | public void actionPerformed(ActionEvent e) {
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76 | Layer sourceLayer = Main.main.getEditLayer();
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77 | if (sourceLayer == null)
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78 | return;
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79 | merge(sourceLayer);
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80 | }
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81 |
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82 | @Override
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83 | protected void updateEnabledState() {
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84 | GuiHelper.runInEDT(new Runnable() {
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85 | @Override
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86 | public void run() {
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87 | if (getEditLayer() == null) {
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88 | setEnabled(false);
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89 | return;
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90 | }
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91 | setEnabled(!LayerListDialog.getInstance().getModel().getPossibleMergeTargets(getEditLayer()).isEmpty());
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92 | }
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93 | });
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94 | }
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95 |
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96 | /**
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97 | * returns true if the user wants to cancel, false if they want to continue
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98 | */
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99 | public static final boolean warnMergingUploadDiscouragedLayers(Layer sourceLayer, Layer targetLayer) {
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100 | return GuiHelper.warnUser(tr("Merging layers with different upload policies"),
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101 | "<html>" +
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102 | tr("You are about to merge data between layers ''{0}'' and ''{1}''.<br /><br />"+
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103 | "These layers have different upload policies and should not been merged as it.<br />"+
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104 | "Merging them will result to enforce the stricter policy (upload discouraged) to ''{1}''.<br /><br />"+
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105 | "<b>This is not the recommended way of merging such data</b>.<br />"+
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106 | "You should instead check and merge each object, one by one, by using ''<i>Merge selection</i>''.<br /><br />"+
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107 | "Are you sure you want to continue?", sourceLayer.getName(), targetLayer.getName(), targetLayer.getName())+
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108 | "</html>",
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109 | ImageProvider.get("dialogs", "mergedown"), tr("Ignore this hint and merge anyway"));
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110 | }
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111 | }
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