| 1 | // License: GPL. Copyright 2007 by Immanuel Scholz and others
|
|---|
| 2 | package org.openstreetmap.josm.actions;
|
|---|
| 3 |
|
|---|
| 4 | import static org.openstreetmap.josm.tools.I18n.tr;
|
|---|
| 5 |
|
|---|
| 6 | import java.awt.GridBagLayout;
|
|---|
| 7 | import java.awt.event.ActionEvent;
|
|---|
| 8 | import java.awt.event.KeyEvent;
|
|---|
| 9 | import java.util.Collection;
|
|---|
| 10 | import java.util.HashMap;
|
|---|
| 11 | import java.util.HashSet;
|
|---|
| 12 | import java.util.LinkedList;
|
|---|
| 13 | import java.util.List;
|
|---|
| 14 | import java.util.ListIterator;
|
|---|
| 15 | import java.util.Map;
|
|---|
| 16 | import java.util.Set;
|
|---|
| 17 | import java.util.TreeMap;
|
|---|
| 18 | import java.util.TreeSet;
|
|---|
| 19 | import java.util.Map.Entry;
|
|---|
| 20 |
|
|---|
| 21 | import javax.swing.Box;
|
|---|
| 22 | import javax.swing.JComboBox;
|
|---|
| 23 | import javax.swing.JLabel;
|
|---|
| 24 | import javax.swing.JOptionPane;
|
|---|
| 25 | import javax.swing.JPanel;
|
|---|
| 26 |
|
|---|
| 27 | import org.openstreetmap.josm.Main;
|
|---|
| 28 | import org.openstreetmap.josm.command.ChangeCommand;
|
|---|
| 29 | import org.openstreetmap.josm.command.Command;
|
|---|
| 30 | import org.openstreetmap.josm.command.DeleteCommand;
|
|---|
| 31 | import org.openstreetmap.josm.command.SequenceCommand;
|
|---|
| 32 | import org.openstreetmap.josm.data.SelectionChangedListener;
|
|---|
| 33 | import org.openstreetmap.josm.data.osm.DataSet;
|
|---|
| 34 | import org.openstreetmap.josm.data.osm.Node;
|
|---|
| 35 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
|
|---|
| 36 | import org.openstreetmap.josm.data.osm.Relation;
|
|---|
| 37 | import org.openstreetmap.josm.data.osm.RelationMember;
|
|---|
| 38 | import org.openstreetmap.josm.data.osm.TigerUtils;
|
|---|
| 39 | import org.openstreetmap.josm.data.osm.Way;
|
|---|
| 40 | import org.openstreetmap.josm.tools.GBC;
|
|---|
| 41 | import org.openstreetmap.josm.tools.Pair;
|
|---|
| 42 |
|
|---|
| 43 | /**
|
|---|
| 44 | * Combines multiple ways into one.
|
|---|
| 45 | *
|
|---|
| 46 | * @author Imi
|
|---|
| 47 | */
|
|---|
| 48 | public class CombineWayAction extends JosmAction implements SelectionChangedListener {
|
|---|
| 49 |
|
|---|
| 50 | public CombineWayAction() {
|
|---|
| 51 | super(tr("Combine Way"), "combineway", tr("Combine several ways into one."), KeyEvent.VK_C, 0, true);
|
|---|
| 52 | DataSet.selListeners.add(this);
|
|---|
| 53 | }
|
|---|
| 54 |
|
|---|
| 55 | public void actionPerformed(ActionEvent event) {
|
|---|
| 56 | Collection<OsmPrimitive> selection = Main.ds.getSelected();
|
|---|
| 57 | LinkedList<Way> selectedWays = new LinkedList<Way>();
|
|---|
| 58 |
|
|---|
| 59 | for (OsmPrimitive osm : selection)
|
|---|
| 60 | if (osm instanceof Way)
|
|---|
| 61 | selectedWays.add((Way)osm);
|
|---|
| 62 |
|
|---|
| 63 | if (selectedWays.size() < 2) {
|
|---|
| 64 | JOptionPane.showMessageDialog(Main.parent, tr("Please select at least two ways to combine."));
|
|---|
| 65 | return;
|
|---|
| 66 | }
|
|---|
| 67 |
|
|---|
| 68 | // Check whether all ways have identical relationship membership. More
|
|---|
| 69 | // specifically: If one of the selected ways is a member of relation X
|
|---|
| 70 | // in role Y, then all selected ways must be members of X in role Y.
|
|---|
| 71 |
|
|---|
| 72 | // FIXME: In a later revision, we should display some sort of conflict
|
|---|
| 73 | // dialog like we do for tags, to let the user choose which relations
|
|---|
| 74 | // should be kept.
|
|---|
| 75 |
|
|---|
| 76 | // Step 1, iterate over all relations and figure out which of our
|
|---|
| 77 | // selected ways are members of a relation.
|
|---|
| 78 | HashMap<Pair<Relation,String>, HashSet<Way>> backlinks =
|
|---|
| 79 | new HashMap<Pair<Relation,String>, HashSet<Way>>();
|
|---|
| 80 | HashSet<Relation> relationsUsingWays = new HashSet<Relation>();
|
|---|
| 81 | for (Relation r : Main.ds.relations) {
|
|---|
| 82 | if (r.deleted || r.incomplete) continue;
|
|---|
| 83 | for (RelationMember rm : r.members) {
|
|---|
| 84 | if (rm.member instanceof Way) {
|
|---|
| 85 | for(Way w : selectedWays) {
|
|---|
| 86 | if (rm.member == w) {
|
|---|
| 87 | Pair<Relation,String> pair = new Pair<Relation,String>(r, rm.role);
|
|---|
| 88 | HashSet<Way> waylinks = new HashSet<Way>();
|
|---|
| 89 | if (backlinks.containsKey(pair)) {
|
|---|
| 90 | waylinks = backlinks.get(pair);
|
|---|
| 91 | } else {
|
|---|
| 92 | waylinks = new HashSet<Way>();
|
|---|
| 93 | backlinks.put(pair, waylinks);
|
|---|
| 94 | }
|
|---|
| 95 | waylinks.add(w);
|
|---|
| 96 |
|
|---|
| 97 | // this is just a cache for later use
|
|---|
| 98 | relationsUsingWays.add(r);
|
|---|
| 99 | }
|
|---|
| 100 | }
|
|---|
| 101 | }
|
|---|
| 102 | }
|
|---|
| 103 | }
|
|---|
| 104 |
|
|---|
| 105 | // Complain to the user if the ways don't have equal memberships.
|
|---|
| 106 | for (HashSet<Way> waylinks : backlinks.values()) {
|
|---|
| 107 | if (!waylinks.containsAll(selectedWays)) {
|
|---|
| 108 | int option = JOptionPane.showConfirmDialog(Main.parent,
|
|---|
| 109 | tr("The selected ways have differing relation memberships. "
|
|---|
| 110 | + "Do you still want to combine them?"),
|
|---|
| 111 | tr("Combine ways with different memberships?"),
|
|---|
| 112 | JOptionPane.YES_NO_OPTION);
|
|---|
| 113 | if (option == JOptionPane.YES_OPTION)
|
|---|
| 114 | break;
|
|---|
| 115 | return;
|
|---|
| 116 | }
|
|---|
| 117 | }
|
|---|
| 118 |
|
|---|
| 119 | // collect properties for later conflict resolving
|
|---|
| 120 | Map<String, Set<String>> props = new TreeMap<String, Set<String>>();
|
|---|
| 121 | for (Way w : selectedWays) {
|
|---|
| 122 | for (Entry<String,String> e : w.entrySet()) {
|
|---|
| 123 | if (!props.containsKey(e.getKey()))
|
|---|
| 124 | props.put(e.getKey(), new TreeSet<String>());
|
|---|
| 125 | props.get(e.getKey()).add(e.getValue());
|
|---|
| 126 | }
|
|---|
| 127 | }
|
|---|
| 128 |
|
|---|
| 129 | List<Node> nodeList = null;
|
|---|
| 130 | Object firstTry = actuallyCombineWays(selectedWays, false);
|
|---|
| 131 | if (firstTry instanceof List) {
|
|---|
| 132 | nodeList = (List<Node>) firstTry;
|
|---|
| 133 | } else {
|
|---|
| 134 | Object secondTry = actuallyCombineWays(selectedWays, true);
|
|---|
| 135 | if (secondTry instanceof List) {
|
|---|
| 136 | int option = JOptionPane.showConfirmDialog(Main.parent,
|
|---|
| 137 | tr("The ways can not be combined in their current directions. "
|
|---|
| 138 | + "Do you want to reverse some of them?"), tr("Change directions?"),
|
|---|
| 139 | JOptionPane.YES_NO_OPTION);
|
|---|
| 140 | if (option != JOptionPane.YES_OPTION) {
|
|---|
| 141 | return;
|
|---|
| 142 | }
|
|---|
| 143 | nodeList = (List<Node>) secondTry;
|
|---|
| 144 | } else {
|
|---|
| 145 | JOptionPane.showMessageDialog(Main.parent, secondTry);
|
|---|
| 146 | return;
|
|---|
| 147 | }
|
|---|
| 148 | }
|
|---|
| 149 |
|
|---|
| 150 | // Find the most appropriate way to modify.
|
|---|
| 151 |
|
|---|
| 152 | // Eventually this might want to be the way with the longest
|
|---|
| 153 | // history or the longest selected way but for now just attempt
|
|---|
| 154 | // to reuse an existing id.
|
|---|
| 155 | Way modifyWay = selectedWays.peek();
|
|---|
| 156 | for (Way w : selectedWays) {
|
|---|
| 157 | modifyWay = w;
|
|---|
| 158 | if (w.id != 0) break;
|
|---|
| 159 | }
|
|---|
| 160 | Way newWay = new Way(modifyWay);
|
|---|
| 161 |
|
|---|
| 162 | newWay.nodes.clear();
|
|---|
| 163 | newWay.nodes.addAll(nodeList);
|
|---|
| 164 |
|
|---|
| 165 | // display conflict dialog
|
|---|
| 166 | Map<String, JComboBox> components = new HashMap<String, JComboBox>();
|
|---|
| 167 | JPanel p = new JPanel(new GridBagLayout());
|
|---|
| 168 | for (Entry<String, Set<String>> e : props.entrySet()) {
|
|---|
| 169 | if (TigerUtils.isTigerTag(e.getKey())) {
|
|---|
| 170 | String combined = TigerUtils.combineTags(e.getKey(), e.getValue());
|
|---|
| 171 | newWay.put(e.getKey(), combined);
|
|---|
| 172 | } else if (e.getValue().size() > 1) {
|
|---|
| 173 | if("created_by".equals(e.getKey()))
|
|---|
| 174 | {
|
|---|
| 175 | newWay.put("created_by", "JOSM");
|
|---|
| 176 | }
|
|---|
| 177 | else
|
|---|
| 178 | {
|
|---|
| 179 | JComboBox c = new JComboBox(e.getValue().toArray());
|
|---|
| 180 | c.setEditable(true);
|
|---|
| 181 | p.add(new JLabel(e.getKey()), GBC.std());
|
|---|
| 182 | p.add(Box.createHorizontalStrut(10), GBC.std());
|
|---|
| 183 | p.add(c, GBC.eol());
|
|---|
| 184 | components.put(e.getKey(), c);
|
|---|
| 185 | }
|
|---|
| 186 | } else
|
|---|
| 187 | newWay.put(e.getKey(), e.getValue().iterator().next());
|
|---|
| 188 | }
|
|---|
| 189 |
|
|---|
| 190 | if (!components.isEmpty()) {
|
|---|
| 191 | int answer = JOptionPane.showConfirmDialog(Main.parent, p, tr("Enter values for all conflicts."), JOptionPane.OK_CANCEL_OPTION);
|
|---|
| 192 | if (answer != JOptionPane.OK_OPTION)
|
|---|
| 193 | return;
|
|---|
| 194 | for (Entry<String, JComboBox> e : components.entrySet())
|
|---|
| 195 | newWay.put(e.getKey(), e.getValue().getEditor().getItem().toString());
|
|---|
| 196 | }
|
|---|
| 197 |
|
|---|
| 198 | LinkedList<Command> cmds = new LinkedList<Command>();
|
|---|
| 199 | LinkedList<Way> deletedWays = new LinkedList<Way>(selectedWays);
|
|---|
| 200 | deletedWays.remove(modifyWay);
|
|---|
| 201 | cmds.add(new DeleteCommand(deletedWays));
|
|---|
| 202 | cmds.add(new ChangeCommand(modifyWay, newWay));
|
|---|
| 203 |
|
|---|
| 204 | // modify all relations containing the now-deleted ways
|
|---|
| 205 | for (Relation r : relationsUsingWays) {
|
|---|
| 206 | Relation newRel = new Relation(r);
|
|---|
| 207 | newRel.members.clear();
|
|---|
| 208 | HashSet<String> rolesToReAdd = new HashSet<String>();
|
|---|
| 209 | for (RelationMember rm : r.members) {
|
|---|
| 210 | // Don't copy the member if it to one of our ways, just keep a
|
|---|
| 211 | // note to re-add it later on.
|
|---|
| 212 | if (selectedWays.contains(rm.member)) {
|
|---|
| 213 | rolesToReAdd.add(rm.role);
|
|---|
| 214 | } else {
|
|---|
| 215 | newRel.members.add(rm);
|
|---|
| 216 | }
|
|---|
| 217 | }
|
|---|
| 218 | for (String role : rolesToReAdd) {
|
|---|
| 219 | newRel.members.add(new RelationMember(role, modifyWay));
|
|---|
| 220 | }
|
|---|
| 221 | cmds.add(new ChangeCommand(r, newRel));
|
|---|
| 222 | }
|
|---|
| 223 | Main.main.undoRedo.add(new SequenceCommand(tr("Combine {0} ways", selectedWays.size()), cmds));
|
|---|
| 224 | Main.ds.setSelected(modifyWay);
|
|---|
| 225 | }
|
|---|
| 226 |
|
|---|
| 227 | /**
|
|---|
| 228 | * @return a message if combining failed, else a list of nodes.
|
|---|
| 229 | */
|
|---|
| 230 | private Object actuallyCombineWays(List<Way> ways, boolean ignoreDirection) {
|
|---|
| 231 | // Battle plan:
|
|---|
| 232 | // 1. Split the ways into small chunks of 2 nodes and weed out
|
|---|
| 233 | // duplicates.
|
|---|
| 234 | // 2. Take a chunk and see if others could be appended or prepended,
|
|---|
| 235 | // if so, do it and remove it from the list of remaining chunks.
|
|---|
| 236 | // Rather, rinse, repeat.
|
|---|
| 237 | // 3. If this algorithm does not produce a single way,
|
|---|
| 238 | // complain to the user.
|
|---|
| 239 | // 4. Profit!
|
|---|
| 240 |
|
|---|
| 241 | HashSet<Pair<Node,Node>> chunkSet = new HashSet<Pair<Node,Node>>();
|
|---|
| 242 | for (Way w : ways)
|
|---|
| 243 | chunkSet.addAll(w.getNodePairs(ignoreDirection));
|
|---|
| 244 |
|
|---|
| 245 | LinkedList<Pair<Node,Node>> chunks = new LinkedList<Pair<Node,Node>>(chunkSet);
|
|---|
| 246 |
|
|---|
| 247 | if (chunks.isEmpty()) {
|
|---|
| 248 | return tr("All the ways were empty");
|
|---|
| 249 | }
|
|---|
| 250 |
|
|---|
| 251 | List<Node> nodeList = Pair.toArrayList(chunks.poll());
|
|---|
| 252 | while (!chunks.isEmpty()) {
|
|---|
| 253 | ListIterator<Pair<Node,Node>> it = chunks.listIterator();
|
|---|
| 254 | boolean foundChunk = false;
|
|---|
| 255 | while (it.hasNext()) {
|
|---|
| 256 | Pair<Node,Node> curChunk = it.next();
|
|---|
| 257 | if (curChunk.a == nodeList.get(nodeList.size() - 1)) { // append
|
|---|
| 258 | nodeList.add(curChunk.b);
|
|---|
| 259 | } else if (curChunk.b == nodeList.get(0)) { // prepend
|
|---|
| 260 | nodeList.add(0, curChunk.a);
|
|---|
| 261 | } else if (ignoreDirection && curChunk.b == nodeList.get(nodeList.size() - 1)) { // append
|
|---|
| 262 | nodeList.add(curChunk.a);
|
|---|
| 263 | } else if (ignoreDirection && curChunk.a == nodeList.get(0)) { // prepend
|
|---|
| 264 | nodeList.add(0, curChunk.b);
|
|---|
| 265 | } else {
|
|---|
| 266 | continue;
|
|---|
| 267 | }
|
|---|
| 268 |
|
|---|
| 269 | foundChunk = true;
|
|---|
| 270 | it.remove();
|
|---|
| 271 | break;
|
|---|
| 272 | }
|
|---|
| 273 | if (!foundChunk) break;
|
|---|
| 274 | }
|
|---|
| 275 |
|
|---|
| 276 | if (!chunks.isEmpty()) {
|
|---|
| 277 | return tr("Could not combine ways "
|
|---|
| 278 | + "(They could not be merged into a single string of nodes)");
|
|---|
| 279 | }
|
|---|
| 280 |
|
|---|
| 281 | return nodeList;
|
|---|
| 282 | }
|
|---|
| 283 |
|
|---|
| 284 | /**
|
|---|
| 285 | * Enable the "Combine way" menu option if more then one way is selected
|
|---|
| 286 | */
|
|---|
| 287 | public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
|
|---|
| 288 | boolean first = false;
|
|---|
| 289 | for (OsmPrimitive osm : newSelection) {
|
|---|
| 290 | if (osm instanceof Way) {
|
|---|
| 291 | if (first) {
|
|---|
| 292 | setEnabled(true);
|
|---|
| 293 | return;
|
|---|
| 294 | }
|
|---|
| 295 | first = true;
|
|---|
| 296 | }
|
|---|
| 297 | }
|
|---|
| 298 | setEnabled(false);
|
|---|
| 299 | }
|
|---|
| 300 | }
|
|---|
