001 // License: GPL. See LICENSE file for details.
002 package org.openstreetmap.josm.gui.dialogs;
003
004 import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
005 import static org.openstreetmap.josm.tools.I18n.marktr;
006 import static org.openstreetmap.josm.tools.I18n.tr;
007
008 import java.awt.Color;
009 import java.awt.Graphics;
010 import java.awt.Point;
011 import java.awt.event.ActionEvent;
012 import java.awt.event.KeyEvent;
013 import java.awt.event.MouseAdapter;
014 import java.awt.event.MouseEvent;
015 import java.util.Arrays;
016 import java.util.Collection;
017 import java.util.HashSet;
018 import java.util.Iterator;
019 import java.util.LinkedList;
020 import java.util.Set;
021 import java.util.concurrent.CopyOnWriteArrayList;
022
023 import javax.swing.AbstractAction;
024 import javax.swing.JList;
025 import javax.swing.ListModel;
026 import javax.swing.ListSelectionModel;
027 import javax.swing.event.ListDataEvent;
028 import javax.swing.event.ListDataListener;
029 import javax.swing.event.ListSelectionEvent;
030 import javax.swing.event.ListSelectionListener;
031
032 import org.openstreetmap.josm.Main;
033 import org.openstreetmap.josm.data.SelectionChangedListener;
034 import org.openstreetmap.josm.data.conflict.Conflict;
035 import org.openstreetmap.josm.data.conflict.ConflictCollection;
036 import org.openstreetmap.josm.data.conflict.IConflictListener;
037 import org.openstreetmap.josm.data.osm.DataSet;
038 import org.openstreetmap.josm.data.osm.Node;
039 import org.openstreetmap.josm.data.osm.OsmPrimitive;
040 import org.openstreetmap.josm.data.osm.Relation;
041 import org.openstreetmap.josm.data.osm.RelationMember;
042 import org.openstreetmap.josm.data.osm.Way;
043 import org.openstreetmap.josm.data.osm.visitor.AbstractVisitor;
044 import org.openstreetmap.josm.data.osm.visitor.Visitor;
045 import org.openstreetmap.josm.gui.MapView;
046 import org.openstreetmap.josm.gui.NavigatableComponent;
047 import org.openstreetmap.josm.gui.OsmPrimitivRenderer;
048 import org.openstreetmap.josm.gui.SideButton;
049 import org.openstreetmap.josm.gui.layer.OsmDataLayer;
050 import org.openstreetmap.josm.gui.util.GuiHelper;
051 import org.openstreetmap.josm.tools.ImageProvider;
052 import org.openstreetmap.josm.tools.Shortcut;
053
054 /**
055 * This dialog displays the {@link ConflictCollection} of the active {@link OsmDataLayer} in a toggle
056 * dialog on the right of the main frame.
057 *
058 */
059 public final class ConflictDialog extends ToggleDialog implements MapView.EditLayerChangeListener, IConflictListener, SelectionChangedListener{
060
061 /**
062 * Replies the color used to paint conflicts.
063 *
064 * @return the color used to paint conflicts
065 * @since 1221
066 * @see #paintConflicts
067 */
068 static public Color getColor() {
069 return Main.pref.getColor(marktr("conflict"), Color.gray);
070 }
071
072 /** the collection of conflicts displayed by this conflict dialog */
073 private ConflictCollection conflicts;
074
075 /** the model for the list of conflicts */
076 private ConflictListModel model;
077 /** the list widget for the list of conflicts */
078 private JList lstConflicts;
079
080 private ResolveAction actResolve;
081 private SelectAction actSelect;
082
083 /**
084 * builds the GUI
085 */
086 protected void build() {
087 model = new ConflictListModel();
088
089 lstConflicts = new JList(model);
090 lstConflicts.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
091 lstConflicts.setCellRenderer(new OsmPrimitivRenderer());
092 lstConflicts.addMouseListener(new MouseAdapter(){
093 @Override public void mouseClicked(MouseEvent e) {
094 if (e.getClickCount() >= 2) {
095 resolve();
096 }
097 }
098 });
099 lstConflicts.getSelectionModel().addListSelectionListener(new ListSelectionListener(){
100 public void valueChanged(ListSelectionEvent e) {
101 Main.map.mapView.repaint();
102 }
103 });
104
105 SideButton btnResolve = new SideButton(actResolve = new ResolveAction());
106 lstConflicts.getSelectionModel().addListSelectionListener(actResolve);
107
108 SideButton btnSelect = new SideButton(actSelect = new SelectAction());
109 lstConflicts.getSelectionModel().addListSelectionListener(actSelect);
110
111 createLayout(lstConflicts, true, Arrays.asList(new SideButton[] {
112 btnResolve, btnSelect
113 }));
114 }
115
116 /**
117 * constructor
118 */
119 public ConflictDialog() {
120 super(tr("Conflict"), "conflict", tr("Resolve conflicts."),
121 Shortcut.registerShortcut("subwindow:conflict", tr("Toggle: {0}", tr("Conflict")),
122 KeyEvent.VK_C, Shortcut.ALT_SHIFT), 100);
123
124 build();
125 refreshView();
126 }
127
128 @Override
129 public void showNotify() {
130 DataSet.addSelectionListener(this);
131 MapView.addEditLayerChangeListener(this, true);
132 refreshView();
133 }
134
135 @Override
136 public void hideNotify() {
137 MapView.removeEditLayerChangeListener(this);
138 DataSet.removeSelectionListener(this);
139 }
140
141 /**
142 * Launches a conflict resolution dialog for the first selected conflict
143 *
144 */
145 private final void resolve() {
146 if (conflicts == null || model.getSize() == 0) return;
147
148 int index = lstConflicts.getSelectedIndex();
149 if (index < 0) {
150 index = 0;
151 }
152
153 Conflict<? extends OsmPrimitive> c = conflicts.get(index);
154 ConflictResolutionDialog dialog = new ConflictResolutionDialog(Main.parent);
155 dialog.getConflictResolver().populate(c);
156 dialog.setVisible(true);
157
158 lstConflicts.setSelectedIndex(index);
159
160 Main.map.mapView.repaint();
161 }
162
163 /**
164 * refreshes the view of this dialog
165 */
166 public final void refreshView() {
167 OsmDataLayer editLayer = Main.main.getEditLayer();
168 conflicts = (editLayer == null ? new ConflictCollection() : editLayer.getConflicts());
169 GuiHelper.runInEDT(new Runnable() {
170 @Override
171 public void run() {
172 model.fireContentChanged();
173 updateTitle(conflicts.size());
174 }
175 });
176 }
177
178 private void updateTitle(int conflictsCount) {
179 if (conflictsCount > 0) {
180 setTitle(tr("Conflicts: {0} unresolved", conflicts.size()));
181 } else {
182 setTitle(tr("Conflict"));
183 }
184 }
185
186 /**
187 * Paints all conflicts that can be expressed on the main window.
188 *
189 * @param g The {@code Graphics} used to paint
190 * @param nc The {@code NavigatableComponent} used to get screen coordinates of nodes
191 * @since 86
192 */
193 public void paintConflicts(final Graphics g, final NavigatableComponent nc) {
194 Color preferencesColor = getColor();
195 if (preferencesColor.equals(Main.pref.getColor(marktr("background"), Color.black)))
196 return;
197 g.setColor(preferencesColor);
198 Visitor conflictPainter = new AbstractVisitor() {
199 // Manage a stack of visited relations to avoid infinite recursion with cyclic relations (fix #7938)
200 private final Set<Relation> visited = new HashSet<Relation>();
201 public void visit(Node n) {
202 Point p = nc.getPoint(n);
203 g.drawRect(p.x-1, p.y-1, 2, 2);
204 }
205 public void visit(Node n1, Node n2) {
206 Point p1 = nc.getPoint(n1);
207 Point p2 = nc.getPoint(n2);
208 g.drawLine(p1.x, p1.y, p2.x, p2.y);
209 }
210 public void visit(Way w) {
211 Node lastN = null;
212 for (Node n : w.getNodes()) {
213 if (lastN == null) {
214 lastN = n;
215 continue;
216 }
217 visit(lastN, n);
218 lastN = n;
219 }
220 }
221 public void visit(Relation e) {
222 if (!visited.contains(e)) {
223 visited.add(e);
224 try {
225 for (RelationMember em : e.getMembers()) {
226 em.getMember().visit(this);
227 }
228 } finally {
229 visited.remove(e);
230 }
231 }
232 }
233 };
234 for (Object o : lstConflicts.getSelectedValues()) {
235 if (conflicts == null || !conflicts.hasConflictForMy((OsmPrimitive)o)) {
236 continue;
237 }
238 conflicts.getConflictForMy((OsmPrimitive)o).getTheir().visit(conflictPainter);
239 }
240 }
241
242 public void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
243 if (oldLayer != null) {
244 oldLayer.getConflicts().removeConflictListener(this);
245 }
246 if (newLayer != null) {
247 newLayer.getConflicts().addConflictListener(this);
248 }
249 refreshView();
250 }
251
252
253 /**
254 * replies the conflict collection currently held by this dialog; may be null
255 *
256 * @return the conflict collection currently held by this dialog; may be null
257 */
258 public ConflictCollection getConflicts() {
259 return conflicts;
260 }
261
262 /**
263 * returns the first selected item of the conflicts list
264 *
265 * @return Conflict
266 */
267 public Conflict<? extends OsmPrimitive> getSelectedConflict() {
268 if (conflicts == null || model.getSize() == 0) return null;
269
270 int index = lstConflicts.getSelectedIndex();
271 if (index < 0) return null;
272
273 return conflicts.get(index);
274 }
275
276 public void onConflictsAdded(ConflictCollection conflicts) {
277 refreshView();
278 }
279
280 public void onConflictsRemoved(ConflictCollection conflicts) {
281 System.err.println("1 conflict has been resolved.");
282 refreshView();
283 }
284
285 public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
286 lstConflicts.clearSelection();
287 for (OsmPrimitive osm : newSelection) {
288 if (conflicts != null && conflicts.hasConflictForMy(osm)) {
289 int pos = model.indexOf(osm);
290 if (pos >= 0) {
291 lstConflicts.addSelectionInterval(pos, pos);
292 }
293 }
294 }
295 }
296
297 @Override
298 public String helpTopic() {
299 return ht("/Dialog/ConflictList");
300 }
301
302 /**
303 * The {@link ListModel} for conflicts
304 *
305 */
306 class ConflictListModel implements ListModel {
307
308 private CopyOnWriteArrayList<ListDataListener> listeners;
309
310 public ConflictListModel() {
311 listeners = new CopyOnWriteArrayList<ListDataListener>();
312 }
313
314 public void addListDataListener(ListDataListener l) {
315 if (l != null) {
316 listeners.addIfAbsent(l);
317 }
318 }
319
320 public void removeListDataListener(ListDataListener l) {
321 listeners.remove(l);
322 }
323
324 protected void fireContentChanged() {
325 ListDataEvent evt = new ListDataEvent(
326 this,
327 ListDataEvent.CONTENTS_CHANGED,
328 0,
329 getSize()
330 );
331 Iterator<ListDataListener> it = listeners.iterator();
332 while(it.hasNext()) {
333 it.next().contentsChanged(evt);
334 }
335 }
336
337 public Object getElementAt(int index) {
338 if (index < 0) return null;
339 if (index >= getSize()) return null;
340 return conflicts.get(index).getMy();
341 }
342
343 public int getSize() {
344 if (conflicts == null) return 0;
345 return conflicts.size();
346 }
347
348 public int indexOf(OsmPrimitive my) {
349 if (conflicts == null) return -1;
350 for (int i=0; i < conflicts.size();i++) {
351 if (conflicts.get(i).isMatchingMy(my))
352 return i;
353 }
354 return -1;
355 }
356
357 public OsmPrimitive get(int idx) {
358 if (conflicts == null) return null;
359 return conflicts.get(idx).getMy();
360 }
361 }
362
363 class ResolveAction extends AbstractAction implements ListSelectionListener {
364 public ResolveAction() {
365 putValue(NAME, tr("Resolve"));
366 putValue(SHORT_DESCRIPTION, tr("Open a merge dialog of all selected items in the list above."));
367 putValue(SMALL_ICON, ImageProvider.get("dialogs", "conflict"));
368 putValue("help", ht("/Dialog/ConflictList#ResolveAction"));
369 }
370
371 public void actionPerformed(ActionEvent e) {
372 resolve();
373 }
374
375 public void valueChanged(ListSelectionEvent e) {
376 ListSelectionModel model = (ListSelectionModel)e.getSource();
377 boolean enabled = model.getMinSelectionIndex() >= 0
378 && model.getMaxSelectionIndex() >= model.getMinSelectionIndex();
379 setEnabled(enabled);
380 }
381 }
382
383 class SelectAction extends AbstractAction implements ListSelectionListener {
384 public SelectAction() {
385 putValue(NAME, tr("Select"));
386 putValue(SHORT_DESCRIPTION, tr("Set the selected elements on the map to the selected items in the list above."));
387 putValue(SMALL_ICON, ImageProvider.get("dialogs", "select"));
388 putValue("help", ht("/Dialog/ConflictList#SelectAction"));
389 }
390
391 public void actionPerformed(ActionEvent e) {
392 Collection<OsmPrimitive> sel = new LinkedList<OsmPrimitive>();
393 for (Object o : lstConflicts.getSelectedValues()) {
394 sel.add((OsmPrimitive)o);
395 }
396 DataSet ds = Main.main.getCurrentDataSet();
397 if (ds != null) { // Can't see how it is possible but it happened in #7942
398 ds.setSelected(sel);
399 }
400 }
401
402 public void valueChanged(ListSelectionEvent e) {
403 ListSelectionModel model = (ListSelectionModel)e.getSource();
404 boolean enabled = model.getMinSelectionIndex() >= 0
405 && model.getMaxSelectionIndex() >= model.getMinSelectionIndex();
406 setEnabled(enabled);
407 }
408 }
409
410 }