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.List;
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11 |
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12 | import org.openstreetmap.josm.data.osm.DataSet;
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13 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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14 | import org.openstreetmap.josm.data.osm.visitor.MergeSourceBuildingVisitor;
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15 | import org.openstreetmap.josm.gui.dialogs.LayerListDialog;
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16 | import org.openstreetmap.josm.gui.layer.Layer;
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17 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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18 | import org.openstreetmap.josm.gui.util.GuiHelper;
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19 | import org.openstreetmap.josm.tools.ImageProvider;
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20 | import org.openstreetmap.josm.tools.Shortcut;
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21 |
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22 | public class MergeSelectionAction extends AbstractMergeAction {
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23 | public MergeSelectionAction() {
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24 | super(tr("Merge selection"), "dialogs/mergedown", tr("Merge the currently selected objects into another layer"),
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25 | Shortcut.registerShortcut("system:mergeselection", tr("Edit: {0}", tr("Merge selection")),
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26 | KeyEvent.VK_M, Shortcut.CTRL_SHIFT),
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27 | true /* register */
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28 | );
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29 | putValue("help", ht("/Action/MergeSelection"));
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30 | }
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31 |
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32 | public void mergeSelected(DataSet source) {
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33 | List<Layer> targetLayers = LayerListDialog.getInstance().getModel().getPossibleMergeTargets(getEditLayer());
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34 | if (targetLayers.isEmpty()) {
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35 | warnNoTargetLayersForSourceLayer(getEditLayer());
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36 | return;
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37 | }
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38 | Layer targetLayer = askTargetLayer(targetLayers);
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39 | if (targetLayer == null)
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40 | return;
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41 | if (getEditLayer().isUploadDiscouraged() && targetLayer instanceof OsmDataLayer && !((OsmDataLayer)targetLayer).isUploadDiscouraged()
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42 | && getEditLayer().data.getAllSelected().size() > 1) {
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43 | if (warnMergingUploadDiscouragedObjects(targetLayer)) {
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44 | return;
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45 | }
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46 | }
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47 | MergeSourceBuildingVisitor builder = new MergeSourceBuildingVisitor(getEditLayer().data);
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48 | ((OsmDataLayer)targetLayer).mergeFrom(builder.build());
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49 | }
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50 |
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51 | @Override
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52 | public void actionPerformed(ActionEvent e) {
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53 | if (getEditLayer() == null || getEditLayer().data.getAllSelected().isEmpty())
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54 | return;
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55 | mergeSelected(getEditLayer().data);
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56 | }
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57 |
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58 | @Override
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59 | protected void updateEnabledState() {
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60 | if (getCurrentDataSet() == null) {
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61 | setEnabled(false);
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62 | } else {
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63 | updateEnabledState(getCurrentDataSet().getAllSelected());
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64 | }
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65 | }
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66 |
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67 | @Override
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68 | protected void updateEnabledState(Collection<? extends OsmPrimitive> selection) {
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69 | setEnabled(selection != null && !selection.isEmpty());
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70 | }
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71 |
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72 | /**
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73 | * returns true if the user wants to cancel, false if they want to continue
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74 | */
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75 | public static final boolean warnMergingUploadDiscouragedObjects(Layer targetLayer) {
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76 | return GuiHelper.warnUser(tr("Merging too many objects with different upload policies"),
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77 | "<html>" +
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78 | tr("You are about to merge more than 1 object between layers ''{0}'' and ''{1}''.<br /><br />"+
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79 | "<b>This is not the recommended way of merging such data</b>.<br />"+
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80 | "You should instead check and merge each object, <b>one by one</b>.<br /><br />"+
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81 | "Are you sure you want to continue?", getEditLayer().getName(), targetLayer.getName(), targetLayer.getName())+
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82 | "</html>",
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83 | ImageProvider.get("dialogs", "mergedown"), tr("Ignore this hint and merge anyway"));
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84 | }
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85 | }
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