source: josm/trunk/src/org/openstreetmap/josm/actions/MergeSelectionAction.java@ 10601

Last change on this file since 10601 was 10552, checked in by Don-vip, 8 years ago

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  • Property svn:eol-style set to native
File size: 3.9 KB
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[2512]1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.actions;
3
[3754]4import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
[2512]5import static org.openstreetmap.josm.tools.I18n.tr;
6
7import java.awt.event.ActionEvent;
8import java.awt.event.KeyEvent;
9import java.util.Collection;
10import java.util.List;
11
12import org.openstreetmap.josm.data.osm.OsmPrimitive;
13import org.openstreetmap.josm.data.osm.visitor.MergeSourceBuildingVisitor;
14import org.openstreetmap.josm.gui.dialogs.LayerListDialog;
15import org.openstreetmap.josm.gui.layer.Layer;
16import org.openstreetmap.josm.gui.layer.OsmDataLayer;
[5233]17import org.openstreetmap.josm.gui.util.GuiHelper;
18import org.openstreetmap.josm.tools.ImageProvider;
[2512]19import org.openstreetmap.josm.tools.Shortcut;
20
[7859]21/**
22 * Merge the currently selected objects into another layer.
23 * @since 1890
24 */
[2512]25public class MergeSelectionAction extends AbstractMergeAction {
[7859]26
27 /**
28 * Constructs a new {@code MergeSelectionAction}.
29 */
[2512]30 public MergeSelectionAction() {
[4836]31 super(tr("Merge selection"), "dialogs/mergedown", tr("Merge the currently selected objects into another layer"),
32 Shortcut.registerShortcut("system:mergeselection", tr("Edit: {0}", tr("Merge selection")),
[4982]33 KeyEvent.VK_M, Shortcut.CTRL_SHIFT),
[4836]34 true /* register */
[2512]35 );
36 putValue("help", ht("/Action/MergeSelection"));
37 }
38
[7859]39 /**
40 * Merge the currently selected objects into another layer.
41 */
42 public void mergeSelected() {
[10382]43 OsmDataLayer editLayer = getLayerManager().getEditLayer();
44 List<Layer> targetLayers = LayerListDialog.getInstance().getModel().getPossibleMergeTargets(editLayer);
[2512]45 if (targetLayers.isEmpty()) {
[10382]46 warnNoTargetLayersForSourceLayer(editLayer);
[2512]47 return;
48 }
49 Layer targetLayer = askTargetLayer(targetLayers);
50 if (targetLayer == null)
51 return;
[10382]52 if (editLayer.isUploadDiscouraged() && targetLayer instanceof OsmDataLayer
[8510]53 && !((OsmDataLayer) targetLayer).isUploadDiscouraged()
[10382]54 && editLayer.data.getAllSelected().size() > 1
[7859]55 && warnMergingUploadDiscouragedObjects(targetLayer)) {
56 return;
[5233]57 }
[10382]58 MergeSourceBuildingVisitor builder = new MergeSourceBuildingVisitor(editLayer.data);
[8510]59 ((OsmDataLayer) targetLayer).mergeFrom(builder.build());
[2512]60 }
61
[6084]62 @Override
[2512]63 public void actionPerformed(ActionEvent e) {
[10382]64 OsmDataLayer editLayer = getLayerManager().getEditLayer();
[10383]65 if (editLayer == null || editLayer.data.selectionEmpty())
[2512]66 return;
[7859]67 mergeSelected();
[2512]68 }
69
70 @Override
71 protected void updateEnabledState() {
[10548]72 updateEnabledStateOnCurrentSelection();
[2512]73 }
74
75 @Override
76 protected void updateEnabledState(Collection<? extends OsmPrimitive> selection) {
77 setEnabled(selection != null && !selection.isEmpty());
78 }
[6069]79
[5233]80 /**
[7859]81 * Warns the user about merging too many objects with different upload policies.
82 * @param targetLayer Target layer
83 * @return true if the user wants to cancel, false if they want to continue
[5233]84 */
[10448]85 public final boolean warnMergingUploadDiscouragedObjects(Layer targetLayer) {
[5233]86 return GuiHelper.warnUser(tr("Merging too many objects with different upload policies"),
87 "<html>" +
88 tr("You are about to merge more than 1 object between layers ''{0}'' and ''{1}''.<br /><br />"+
89 "<b>This is not the recommended way of merging such data</b>.<br />"+
90 "You should instead check and merge each object, <b>one by one</b>.<br /><br />"+
[7859]91 "Are you sure you want to continue?",
[10448]92 getLayerManager().getEditLayer().getName(), targetLayer.getName(), targetLayer.getName())+
[5233]93 "</html>",
94 ImageProvider.get("dialogs", "mergedown"), tr("Ignore this hint and merge anyway"));
95 }
[2512]96}
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