001 // License: GPL. Copyright 2007 by Immanuel Scholz and others
002 // Author: David Earl
003 package org.openstreetmap.josm.actions;
004
005 import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
006 import static org.openstreetmap.josm.tools.I18n.tr;
007
008 import java.awt.MouseInfo;
009 import java.awt.Point;
010 import java.awt.event.ActionEvent;
011 import java.awt.event.KeyEvent;
012 import java.util.ArrayList;
013 import java.util.HashMap;
014 import java.util.List;
015 import java.util.Map;
016
017 import org.openstreetmap.josm.Main;
018 import org.openstreetmap.josm.command.AddPrimitivesCommand;
019 import org.openstreetmap.josm.data.coor.EastNorth;
020 import org.openstreetmap.josm.data.osm.NodeData;
021 import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
022 import org.openstreetmap.josm.data.osm.PrimitiveData;
023 import org.openstreetmap.josm.data.osm.PrimitiveDeepCopy;
024 import org.openstreetmap.josm.data.osm.RelationData;
025 import org.openstreetmap.josm.data.osm.RelationMemberData;
026 import org.openstreetmap.josm.data.osm.WayData;
027 import org.openstreetmap.josm.data.osm.PrimitiveDeepCopy.PasteBufferChangedListener;
028 import org.openstreetmap.josm.gui.ExtendedDialog;
029 import org.openstreetmap.josm.gui.layer.Layer;
030 import org.openstreetmap.josm.tools.Shortcut;
031
032 public final class PasteAction extends JosmAction implements PasteBufferChangedListener {
033
034 public PasteAction() {
035 super(tr("Paste"), "paste", tr("Paste contents of paste buffer."),
036 Shortcut.registerShortcut("system:paste", tr("Edit: {0}", tr("Paste")), KeyEvent.VK_V, Shortcut.CTRL), true);
037 putValue("help", ht("/Action/Paste"));
038 Main.pasteBuffer.addPasteBufferChangedListener(this);
039 }
040
041 public void actionPerformed(ActionEvent e) {
042 if (!isEnabled())
043 return;
044 pasteData(Main.pasteBuffer, Main.pasteSource, e);
045 }
046
047 public void pasteData(PrimitiveDeepCopy pasteBuffer, Layer source, ActionEvent e) {
048 /* Find the middle of the pasteBuffer area */
049 double maxEast = -1E100, minEast = 1E100, maxNorth = -1E100, minNorth = 1E100;
050 boolean incomplete = false;
051 for (PrimitiveData data : pasteBuffer.getAll()) {
052 if (data instanceof NodeData) {
053 NodeData n = (NodeData)data;
054 if (n.getEastNorth() != null) {
055 double east = n.getEastNorth().east();
056 double north = n.getEastNorth().north();
057 if (east > maxEast) { maxEast = east; }
058 if (east < minEast) { minEast = east; }
059 if (north > maxNorth) { maxNorth = north; }
060 if (north < minNorth) { minNorth = north; }
061 }
062 }
063 if (data.isIncomplete()) {
064 incomplete = true;
065 }
066 }
067
068 // Allow to cancel paste if there are incomplete primitives
069 if (incomplete) {
070 if (!confirmDeleteIncomplete()) return;
071 }
072
073 // default to paste in center of map (pasted via menu or cursor not in MapView)
074 EastNorth mPosition = Main.map.mapView.getCenter();
075 if((e.getModifiers() & ActionEvent.CTRL_MASK) != 0) {
076 final Point mp = MouseInfo.getPointerInfo().getLocation();
077 final Point tl = Main.map.mapView.getLocationOnScreen();
078 final Point pos = new Point(mp.x-tl.x, mp.y-tl.y);
079 if(Main.map.mapView.contains(pos)) {
080 mPosition = Main.map.mapView.getEastNorth(pos.x, pos.y);
081 }
082 }
083
084 double offsetEast = mPosition.east() - (maxEast + minEast)/2.0;
085 double offsetNorth = mPosition.north() - (maxNorth + minNorth)/2.0;
086
087 // Make a copy of pasteBuffer and map from old id to copied data id
088 List<PrimitiveData> bufferCopy = new ArrayList<PrimitiveData>();
089 Map<Long, Long> newNodeIds = new HashMap<Long, Long>();
090 Map<Long, Long> newWayIds = new HashMap<Long, Long>();
091 Map<Long, Long> newRelationIds = new HashMap<Long, Long>();
092 for (PrimitiveData data: pasteBuffer.getAll()) {
093 if (data.isIncomplete()) {
094 continue;
095 }
096 PrimitiveData copy = data.makeCopy();
097 copy.clearOsmId();
098 if (data instanceof NodeData) {
099 newNodeIds.put(data.getUniqueId(), copy.getUniqueId());
100 } else if (data instanceof WayData) {
101 newWayIds.put(data.getUniqueId(), copy.getUniqueId());
102 } else if (data instanceof RelationData) {
103 newRelationIds.put(data.getUniqueId(), copy.getUniqueId());
104 }
105 bufferCopy.add(copy);
106 }
107
108 // Update references in copied buffer
109 for (PrimitiveData data:bufferCopy) {
110 if (data instanceof NodeData) {
111 NodeData nodeData = (NodeData)data;
112 if (Main.map.mapView.getEditLayer() == source) {
113 nodeData.setEastNorth(nodeData.getEastNorth().add(offsetEast, offsetNorth));
114 }
115 } else if (data instanceof WayData) {
116 List<Long> newNodes = new ArrayList<Long>();
117 for (Long oldNodeId: ((WayData)data).getNodes()) {
118 Long newNodeId = newNodeIds.get(oldNodeId);
119 if (newNodeId != null) {
120 newNodes.add(newNodeId);
121 }
122 }
123 ((WayData)data).setNodes(newNodes);
124 } else if (data instanceof RelationData) {
125 List<RelationMemberData> newMembers = new ArrayList<RelationMemberData>();
126 for (RelationMemberData member: ((RelationData)data).getMembers()) {
127 OsmPrimitiveType memberType = member.getMemberType();
128 Long newId = null;
129 switch (memberType) {
130 case NODE:
131 newId = newNodeIds.get(member.getMemberId());
132 break;
133 case WAY:
134 newId = newWayIds.get(member.getMemberId());
135 break;
136 case RELATION:
137 newId = newRelationIds.get(member.getMemberId());
138 break;
139 }
140 if (newId != null) {
141 newMembers.add(new RelationMemberData(member.getRole(), memberType, newId));
142 }
143 }
144 ((RelationData)data).setMembers(newMembers);
145 }
146 }
147
148 /* Now execute the commands to add the duplicated contents of the paste buffer to the map */
149
150 Main.main.undoRedo.add(new AddPrimitivesCommand(bufferCopy));
151 Main.map.mapView.repaint();
152 }
153
154 protected boolean confirmDeleteIncomplete() {
155 ExtendedDialog ed = new ExtendedDialog(Main.parent,
156 tr("Delete incomplete members?"),
157 new String[] {tr("Paste without incomplete members"), tr("Cancel")});
158 ed.setButtonIcons(new String[] {"dialogs/relation/deletemembers.png", "cancel.png"});
159 ed.setContent(tr("The copied data contains incomplete objects. "
160 + "When pasting the incomplete objects are removed. "
161 + "Do you want to paste the data without the incomplete objects?"));
162 ed.showDialog();
163 return ed.getValue() == 1;
164 }
165
166 @Override
167 protected void updateEnabledState() {
168 if (getCurrentDataSet() == null || Main.pasteBuffer == null) {
169 setEnabled(false);
170 return;
171 }
172 setEnabled(!Main.pasteBuffer.isEmpty());
173 }
174
175 @Override
176 public void pasteBufferChanged(PrimitiveDeepCopy pasteBuffer) {
177 updateEnabledState();
178 }
179 }