source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 5340

Last change on this file since 5340 was 5266, checked in by bastiK, 12 years ago

fixed majority of javadoc warnings by replacing "{@see" by "{@link"
  • Property svn:eol-style set to native
File size: 28.6 KB
Line 
1// License: GPL. See LICENSE file for details.
2package org.openstreetmap.josm.gui;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.awt.AlphaComposite;
7import java.awt.Color;
8import java.awt.Graphics;
9import java.awt.Graphics2D;
10import java.awt.Point;
11import java.awt.Rectangle;
12import java.awt.event.ComponentAdapter;
13import java.awt.event.ComponentEvent;
14import java.awt.event.MouseEvent;
15import java.awt.event.MouseMotionListener;
16import java.awt.geom.Area;
17import java.awt.geom.GeneralPath;
18import java.awt.image.BufferedImage;
19import java.beans.PropertyChangeEvent;
20import java.beans.PropertyChangeListener;
21import java.util.ArrayList;
22import java.util.Collection;
23import java.util.Collections;
24import java.util.Comparator;
25import java.util.Enumeration;
26import java.util.LinkedList;
27import java.util.List;
28import java.util.concurrent.CopyOnWriteArrayList;
29
30import javax.swing.AbstractButton;
31import javax.swing.JOptionPane;
32import javax.swing.JPanel;
33
34import org.openstreetmap.josm.Main;
35import org.openstreetmap.josm.actions.AutoScaleAction;
36import org.openstreetmap.josm.actions.mapmode.MapMode;
37import org.openstreetmap.josm.data.Bounds;
38import org.openstreetmap.josm.data.Preferences.PreferenceChangeEvent;
39import org.openstreetmap.josm.data.Preferences.PreferenceChangedListener;
40import org.openstreetmap.josm.data.SelectionChangedListener;
41import org.openstreetmap.josm.data.coor.LatLon;
42import org.openstreetmap.josm.data.osm.DataSet;
43import org.openstreetmap.josm.data.osm.DataSource;
44import org.openstreetmap.josm.data.osm.OsmPrimitive;
45import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
46import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors;
47import org.openstreetmap.josm.data.osm.visitor.paint.relations.MultipolygonCache;
48import org.openstreetmap.josm.gui.layer.GpxLayer;
49import org.openstreetmap.josm.gui.layer.Layer;
50import org.openstreetmap.josm.gui.layer.MapViewPaintable;
51import org.openstreetmap.josm.gui.layer.OsmDataLayer;
52import org.openstreetmap.josm.gui.layer.markerlayer.MarkerLayer;
53import org.openstreetmap.josm.gui.layer.markerlayer.PlayHeadMarker;
54import org.openstreetmap.josm.tools.AudioPlayer;
55import org.openstreetmap.josm.tools.BugReportExceptionHandler;
56
57/**
58 * This is a component used in the MapFrame for browsing the map. It use is to
59 * provide the MapMode's enough capabilities to operate.
60 *
61 * MapView hold meta-data about the data set currently displayed, as scale level,
62 * center point viewed, what scrolling mode or editing mode is selected or with
63 * what projection the map is viewed etc..
64 *
65 * MapView is able to administrate several layers.
66 *
67 * @author imi
68 */
69public class MapView extends NavigatableComponent implements PropertyChangeListener, PreferenceChangedListener {
70
71 /**
72 * Interface to notify listeners of the change of the active layer.
73 * @author imi
74 */
75 public interface LayerChangeListener {
76 void activeLayerChange(Layer oldLayer, Layer newLayer);
77 void layerAdded(Layer newLayer);
78 void layerRemoved(Layer oldLayer);
79 }
80
81 public interface EditLayerChangeListener {
82 void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer);
83 }
84
85 public boolean viewportFollowing = false;
86
87 /**
88 * the layer listeners
89 */
90 private static final CopyOnWriteArrayList<MapView.LayerChangeListener> layerChangeListeners = new CopyOnWriteArrayList<MapView.LayerChangeListener>();
91 private static final CopyOnWriteArrayList<EditLayerChangeListener> editLayerChangeListeners = new CopyOnWriteArrayList<EditLayerChangeListener>();
92
93 /**
94 * Removes a layer change listener
95 *
96 * @param listener the listener. Ignored if null or already registered.
97 */
98 public static void removeLayerChangeListener(MapView.LayerChangeListener listener) {
99 layerChangeListeners.remove(listener);
100 }
101
102 public static void removeEditLayerChangeListener(EditLayerChangeListener listener) {
103 editLayerChangeListeners.remove(listener);
104 }
105
106 /**
107 * Adds a layer change listener
108 *
109 * @param listener the listener. Ignored if null or already registered.
110 */
111 public static void addLayerChangeListener(MapView.LayerChangeListener listener) {
112 if (listener != null) {
113 layerChangeListeners.addIfAbsent(listener);
114 }
115 }
116
117 /**
118 * Adds an edit layer change listener
119 *
120 * @param listener the listener. Ignored if null or already registered.
121 * @param initialFire Fire an edit-layer-changed-event right after adding
122 * the listener in case there is an edit layer present
123 */
124 public static void addEditLayerChangeListener(EditLayerChangeListener listener, boolean initialFire) {
125 addEditLayerChangeListener(listener);
126 if (initialFire) {
127 if (Main.map != null && Main.map.mapView != null && Main.map.mapView.getEditLayer() != null) {
128 fireEditLayerChanged(null, Main.map.mapView.getEditLayer());
129 }
130 }
131 }
132
133 public static void addEditLayerChangeListener(EditLayerChangeListener listener) {
134 if (listener != null) {
135 editLayerChangeListeners.addIfAbsent(listener);
136 }
137 }
138
139 protected static void fireActiveLayerChanged(Layer oldLayer, Layer newLayer) {
140 for (LayerChangeListener l : layerChangeListeners) {
141 l.activeLayerChange(oldLayer, newLayer);
142 }
143 }
144
145 protected static void fireLayerAdded(Layer newLayer) {
146 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
147 l.layerAdded(newLayer);
148 }
149 }
150
151 protected static void fireLayerRemoved(Layer layer) {
152 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
153 l.layerRemoved(layer);
154 }
155 }
156
157 protected static void fireEditLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
158 for (EditLayerChangeListener l : editLayerChangeListeners) {
159 l.editLayerChanged(oldLayer, newLayer);
160 }
161 }
162
163 /**
164 * A list of all layers currently loaded.
165 */
166 private final List<Layer> layers = new ArrayList<Layer>();
167 /**
168 * The play head marker: there is only one of these so it isn't in any specific layer
169 */
170 public PlayHeadMarker playHeadMarker = null;
171
172 /**
173 * The layer from the layers list that is currently active.
174 */
175 private Layer activeLayer;
176
177 private OsmDataLayer editLayer;
178
179 /**
180 * The last event performed by mouse.
181 */
182 public MouseEvent lastMEvent = new MouseEvent(this, 0, 0, 0, 0, 0, 0, false); // In case somebody reads it before first mouse move
183
184 private LinkedList<MapViewPaintable> temporaryLayers = new LinkedList<MapViewPaintable>();
185
186 private BufferedImage nonChangedLayersBuffer;
187 private BufferedImage offscreenBuffer;
188 // Layers that wasn't changed since last paint
189 private final List<Layer> nonChangedLayers = new ArrayList<Layer>();
190 private Layer changedLayer;
191 private int lastViewID;
192 private boolean paintPreferencesChanged = true;
193 private Rectangle lastClipBounds = new Rectangle();
194
195 public MapView(final JPanel contentPane) {
196 Main.pref.addPreferenceChangeListener(this);
197
198 // new MoveAction(MoveAction.Direction.UP);
199 // new MoveAction(MoveAction.Direction.DOWN);
200 // new MoveAction(MoveAction.Direction.LEFT);
201 // new MoveAction(MoveAction.Direction.RIGHT);
202
203 addComponentListener(new ComponentAdapter(){
204 @Override public void componentResized(ComponentEvent e) {
205 removeComponentListener(this);
206
207 MapSlider zoomSlider = new MapSlider(MapView.this);
208 add(zoomSlider);
209 zoomSlider.setBounds(3, 0, 114, 30);
210
211 MapScaler scaler = new MapScaler(MapView.this);
212 add(scaler);
213 scaler.setLocation(10,30);
214
215 new MapMover(MapView.this, contentPane);
216 OsmDataLayer layer = getEditLayer();
217 if (layer != null) {
218 if (!zoomToDataSetBoundingBox(layer.data)) {
219 // no bounding box defined
220 AutoScaleAction.autoScale("data");
221 }
222 } else {
223 AutoScaleAction.autoScale("layer");
224 }
225 }
226 });
227
228 // listend to selection changes to redraw the map
229 DataSet.addSelectionListener(repaintSelectionChangedListener);
230
231 //store the last mouse action
232 this.addMouseMotionListener(new MouseMotionListener() {
233 public void mouseDragged(MouseEvent e) {
234 mouseMoved(e);
235 }
236 public void mouseMoved(MouseEvent e) {
237 lastMEvent = e;
238 }
239 });
240
241 // Add Multipolygon cache to layer listeners
242 addLayerChangeListener(MultipolygonCache.getInstance());
243 }
244
245 /**
246 * Adds a GPX layer. A GPX layer is added below the lowest data layer.
247 *
248 * @param layer the GPX layer
249 */
250 protected void addGpxLayer(GpxLayer layer) {
251 if (layers.isEmpty()) {
252 layers.add(layer);
253 return;
254 }
255 for (int i=layers.size()-1; i>= 0; i--) {
256 if (layers.get(i) instanceof OsmDataLayer) {
257 if (i == layers.size()-1) {
258 layers.add(layer);
259 } else {
260 layers.add(i+1, layer);
261 }
262 return;
263 }
264 }
265 layers.add(0, layer);
266 }
267
268 /**
269 * Add a layer to the current MapView. The layer will be added at topmost
270 * position.
271 */
272 public void addLayer(Layer layer) {
273 if (layer instanceof MarkerLayer && playHeadMarker == null) {
274 playHeadMarker = PlayHeadMarker.create();
275 }
276
277 if (layer instanceof GpxLayer) {
278 addGpxLayer((GpxLayer)layer);
279 } else if (layer.isBackgroundLayer() || layers.isEmpty()) {
280 layers.add(layer);
281 } else {
282 layers.add(0, layer);
283 }
284 fireLayerAdded(layer);
285 if (layer instanceof OsmDataLayer || activeLayer == null) {
286 // autoselect the new layer
287 setActiveLayer(layer);
288 }
289 layer.addPropertyChangeListener(this);
290 Main.addProjectionChangeListener(layer);
291 AudioPlayer.reset();
292 repaint();
293 }
294
295 @Override
296 protected DataSet getCurrentDataSet() {
297 if (editLayer != null)
298 return editLayer.data;
299 else
300 return null;
301 }
302
303 /**
304 * Replies true if the active layer is drawable.
305 *
306 * @return true if the active layer is drawable, false otherwise
307 */
308 public boolean isActiveLayerDrawable() {
309 return editLayer != null;
310 }
311
312 /**
313 * Replies true if the active layer is visible.
314 *
315 * @return true if the active layer is visible, false otherwise
316 */
317 public boolean isActiveLayerVisible() {
318 return isActiveLayerDrawable() && editLayer.isVisible();
319 }
320
321 /**
322 * Determines the next active data layer according to the following
323 * rules:
324 * <ul>
325 * <li>if there is at least one {@link OsmDataLayer} the first one
326 * becomes active</li>
327 * <li>otherwise, the top most layer of any type becomes active</li>
328 * </ul>
329 *
330 * @return the next active data layer
331 */
332 protected Layer determineNextActiveLayer(List<Layer> layersList) {
333 // First look for data layer
334 for (Layer layer:layersList) {
335 if (layer instanceof OsmDataLayer)
336 return layer;
337 }
338
339 // Then any layer
340 if (!layersList.isEmpty())
341 return layersList.get(0);
342
343 // and then give up
344 return null;
345
346 }
347
348 /**
349 * Remove the layer from the mapview. If the layer was in the list before,
350 * an LayerChange event is fired.
351 */
352 public void removeLayer(Layer layer) {
353 List<Layer> layersList = new ArrayList<Layer>(layers);
354
355 if (!layersList.remove(layer))
356 return;
357
358 setEditLayer(layersList);
359
360 if (layer == activeLayer) {
361 setActiveLayer(determineNextActiveLayer(layersList), false);
362 }
363
364 layers.remove(layer);
365 Main.removeProjectionChangeListener(layer);
366 fireLayerRemoved(layer);
367 layer.removePropertyChangeListener(this);
368 layer.destroy();
369 AudioPlayer.reset();
370 repaint();
371 }
372
373 private boolean virtualNodesEnabled = false;
374
375 public void setVirtualNodesEnabled(boolean enabled) {
376 if(virtualNodesEnabled != enabled) {
377 virtualNodesEnabled = enabled;
378 repaint();
379 }
380 }
381 public boolean isVirtualNodesEnabled() {
382 return virtualNodesEnabled;
383 }
384
385 /**
386 * Moves the layer to the given new position. No event is fired, but repaints
387 * according to the new Z-Order of the layers.
388 *
389 * @param layer The layer to move
390 * @param pos The new position of the layer
391 */
392 public void moveLayer(Layer layer, int pos) {
393 int curLayerPos = layers.indexOf(layer);
394 if (curLayerPos == -1)
395 throw new IllegalArgumentException(tr("Layer not in list."));
396 if (pos == curLayerPos)
397 return; // already in place.
398 layers.remove(curLayerPos);
399 if (pos >= layers.size()) {
400 layers.add(layer);
401 } else {
402 layers.add(pos, layer);
403 }
404 setEditLayer(layers);
405 AudioPlayer.reset();
406 repaint();
407 }
408
409 public int getLayerPos(Layer layer) {
410 int curLayerPos = layers.indexOf(layer);
411 if (curLayerPos == -1)
412 throw new IllegalArgumentException(tr("Layer not in list."));
413 return curLayerPos;
414 }
415
416 /**
417 * Creates a list of the visible layers in Z-Order, the layer with the lowest Z-Order
418 * first, layer with the highest Z-Order last.
419 *
420 * @return a list of the visible in Z-Order, the layer with the lowest Z-Order
421 * first, layer with the highest Z-Order last.
422 */
423 protected List<Layer> getVisibleLayersInZOrder() {
424 ArrayList<Layer> ret = new ArrayList<Layer>();
425 for (Layer l: layers) {
426 if (l.isVisible()) {
427 ret.add(l);
428 }
429 }
430 // sort according to position in the list of layers, with one exception:
431 // an active data layer always becomes a higher Z-Order than all other
432 // data layers
433 //
434 Collections.sort(
435 ret,
436 new Comparator<Layer>() {
437 public int compare(Layer l1, Layer l2) {
438 if (l1 instanceof OsmDataLayer && l2 instanceof OsmDataLayer) {
439 if (l1 == getActiveLayer()) return -1;
440 if (l2 == getActiveLayer()) return 1;
441 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
442 } else
443 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
444 }
445 }
446 );
447 Collections.reverse(ret);
448 return ret;
449 }
450
451 private void paintLayer(Layer layer, Graphics2D g, Bounds box) {
452 if (layer.getOpacity() < 1) {
453 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,(float)layer.getOpacity()));
454 }
455 layer.paint(g, this, box);
456 g.setPaintMode();
457 }
458
459 /**
460 * Draw the component.
461 */
462 @Override public synchronized void paint(Graphics g) {
463 if (BugReportExceptionHandler.exceptionHandlingInProgress())
464 return;
465
466 if (center == null)
467 return; // no data loaded yet.
468
469 List<Layer> visibleLayers = getVisibleLayersInZOrder();
470
471 int nonChangedLayersCount = 0;
472 for (Layer l: visibleLayers) {
473 if (l.isChanged() || l == changedLayer) {
474 break;
475 } else {
476 nonChangedLayersCount++;
477 }
478 }
479
480 boolean canUseBuffer = !paintPreferencesChanged && nonChangedLayers.size() <= nonChangedLayersCount &&
481 lastViewID == getViewID() && lastClipBounds.contains(g.getClipBounds());
482 if (canUseBuffer) {
483 for (int i=0; i<nonChangedLayers.size(); i++) {
484 if (visibleLayers.get(i) != nonChangedLayers.get(i)) {
485 canUseBuffer = false;
486 break;
487 }
488 }
489 }
490
491 if (null == offscreenBuffer || offscreenBuffer.getWidth() != getWidth() || offscreenBuffer.getHeight() != getHeight()) {
492 offscreenBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
493 }
494
495 Graphics2D tempG = offscreenBuffer.createGraphics();
496 tempG.setClip(g.getClip());
497 Bounds box = getLatLonBounds(g.getClipBounds());
498
499 if (!canUseBuffer || nonChangedLayersBuffer == null) {
500 if (null == nonChangedLayersBuffer || nonChangedLayersBuffer.getWidth() != getWidth() || nonChangedLayersBuffer.getHeight() != getHeight()) {
501 nonChangedLayersBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
502 }
503 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
504 g2.setClip(g.getClip());
505 g2.setColor(PaintColors.getBackgroundColor());
506 g2.fillRect(0, 0, getWidth(), getHeight());
507
508 for (int i=0; i<nonChangedLayersCount; i++) {
509 paintLayer(visibleLayers.get(i),g2, box);
510 }
511 } else {
512 // Maybe there were more unchanged layers then last time - draw them to buffer
513 if (nonChangedLayers.size() != nonChangedLayersCount) {
514 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
515 g2.setClip(g.getClip());
516 for (int i=nonChangedLayers.size(); i<nonChangedLayersCount; i++) {
517 paintLayer(visibleLayers.get(i),g2, box);
518 }
519 }
520 }
521
522 nonChangedLayers.clear();
523 changedLayer = null;
524 for (int i=0; i<nonChangedLayersCount; i++) {
525 nonChangedLayers.add(visibleLayers.get(i));
526 }
527 lastViewID = getViewID();
528 paintPreferencesChanged = false;
529 lastClipBounds = g.getClipBounds();
530
531 tempG.drawImage(nonChangedLayersBuffer, 0, 0, null);
532
533 for (int i=nonChangedLayersCount; i<visibleLayers.size(); i++) {
534 paintLayer(visibleLayers.get(i),tempG, box);
535 }
536
537 for (MapViewPaintable mvp : temporaryLayers) {
538 mvp.paint(tempG, this, box);
539 }
540
541 // draw world borders
542 tempG.setColor(Color.WHITE);
543 Bounds b = getProjection().getWorldBoundsLatLon();
544 double lat = b.getMin().lat();
545 double lon = b.getMin().lon();
546
547 Point p = getPoint(b.getMin());
548
549 GeneralPath path = new GeneralPath();
550
551 path.moveTo(p.x, p.y);
552 double max = b.getMax().lat();
553 for(; lat <= max; lat += 1.0)
554 {
555 p = getPoint(new LatLon(lat >= max ? max : lat, lon));
556 path.lineTo(p.x, p.y);
557 }
558 lat = max; max = b.getMax().lon();
559 for(; lon <= max; lon += 1.0)
560 {
561 p = getPoint(new LatLon(lat, lon >= max ? max : lon));
562 path.lineTo(p.x, p.y);
563 }
564 lon = max; max = b.getMin().lat();
565 for(; lat >= max; lat -= 1.0)
566 {
567 p = getPoint(new LatLon(lat <= max ? max : lat, lon));
568 path.lineTo(p.x, p.y);
569 }
570 lat = max; max = b.getMin().lon();
571 for(; lon >= max; lon -= 1.0)
572 {
573 p = getPoint(new LatLon(lat, lon <= max ? max : lon));
574 path.lineTo(p.x, p.y);
575 }
576
577 int w = getWidth();
578 int h = getHeight();
579
580 // Work around OpenJDK having problems when drawing out of bounds
581 final Area border = new Area(path);
582 // Make the viewport 1px larger in every direction to prevent an
583 // additional 1px border when zooming in
584 final Area viewport = new Area(new Rectangle(-1, -1, w + 2, h + 2));
585 border.intersect(viewport);
586 tempG.draw(border);
587
588 if (Main.map != null && Main.map.filterDialog != null) {
589 Main.map.filterDialog.drawOSDText(tempG);
590 }
591
592 if (playHeadMarker != null) {
593 playHeadMarker.paint(tempG, this);
594 }
595
596 g.drawImage(offscreenBuffer, 0, 0, null);
597 super.paint(g);
598 }
599
600 /**
601 * Set the new dimension to the view.
602 */
603 public void recalculateCenterScale(BoundingXYVisitor box) {
604 if (box == null) {
605 box = new BoundingXYVisitor();
606 }
607 if (box.getBounds() == null) {
608 box.visit(getProjection().getWorldBoundsLatLon());
609 }
610 if (!box.hasExtend()) {
611 box.enlargeBoundingBox();
612 }
613
614 zoomTo(box.getBounds());
615 }
616
617 /**
618 * @return An unmodifiable collection of all layers
619 */
620 public Collection<Layer> getAllLayers() {
621 return Collections.unmodifiableCollection(layers);
622 }
623
624 /**
625 * @return An unmodifiable ordered list of all layers
626 */
627 public List<Layer> getAllLayersAsList() {
628 return Collections.unmodifiableList(layers);
629 }
630
631 /**
632 * Replies an unmodifiable list of layers of a certain type.
633 *
634 * Example:
635 * <pre>
636 * List<WMSLayer> wmsLayers = getLayersOfType(WMSLayer.class);
637 * </pre>
638 *
639 * @return an unmodifiable list of layers of a certain type.
640 */
641 public <T> List<T> getLayersOfType(Class<T> ofType) {
642 ArrayList<T> ret = new ArrayList<T>();
643 for (Layer layer : getAllLayersAsList()) {
644 if (ofType.isInstance(layer)) {
645 ret.add(ofType.cast(layer));
646 }
647 }
648 return ret;
649 }
650
651 /**
652 * Replies the number of layers managed by this mav view
653 *
654 * @return the number of layers managed by this mav view
655 */
656 public int getNumLayers() {
657 return layers.size();
658 }
659
660 /**
661 * Replies true if there is at least one layer in this map view
662 *
663 * @return true if there is at least one layer in this map view
664 */
665 public boolean hasLayers() {
666 return getNumLayers() > 0;
667 }
668
669 private void setEditLayer(List<Layer> layersList) {
670 OsmDataLayer newEditLayer = layersList.contains(editLayer)?editLayer:null;
671 OsmDataLayer oldEditLayer = editLayer;
672
673 // Find new edit layer
674 if (activeLayer != editLayer || !layersList.contains(editLayer)) {
675 if (activeLayer instanceof OsmDataLayer && layersList.contains(activeLayer)) {
676 newEditLayer = (OsmDataLayer) activeLayer;
677 } else {
678 for (Layer layer:layersList) {
679 if (layer instanceof OsmDataLayer) {
680 newEditLayer = (OsmDataLayer) layer;
681 break;
682 }
683 }
684 }
685 }
686
687 // Set new edit layer
688 if (newEditLayer != editLayer) {
689 if (newEditLayer == null) {
690 getCurrentDataSet().setSelected();
691 }
692
693 editLayer = newEditLayer;
694 fireEditLayerChanged(oldEditLayer, newEditLayer);
695 refreshTitle();
696 }
697
698 }
699
700 /**
701 * Sets the active layer to <code>layer</code>. If <code>layer</code> is an instance
702 * of {@link OsmDataLayer} also sets {@link #editLayer} to <code>layer</code>.
703 *
704 * @param layer the layer to be activate; must be one of the layers in the list of layers
705 * @exception IllegalArgumentException thrown if layer is not in the lis of layers
706 */
707 public void setActiveLayer(Layer layer) {
708 setActiveLayer(layer, true);
709 }
710
711 private void setActiveLayer(Layer layer, boolean setEditLayer) {
712 if (layer != null && !layers.contains(layer))
713 throw new IllegalArgumentException(tr("Layer ''{0}'' must be in list of layers", layer.toString()));
714
715 if (layer == activeLayer)
716 return;
717
718 Layer old = activeLayer;
719 activeLayer = layer;
720 if (setEditLayer) {
721 setEditLayer(layers);
722 }
723 fireActiveLayerChanged(old, layer);
724
725 /* This only makes the buttons look disabled. Disabling the actions as well requires
726 * the user to re-select the tool after i.e. moving a layer. While testing I found
727 * that I switch layers and actions at the same time and it was annoying to mind the
728 * order. This way it works as visual clue for new users */
729 for (Enumeration<AbstractButton> e = Main.map.toolGroup.getElements() ; e.hasMoreElements() ;) {
730 AbstractButton button = e.nextElement();
731 MapMode mode = (MapMode)button.getAction();
732 boolean isLayerSupported = mode.layerIsSupported(layer);
733 button.setEnabled(isLayerSupported);
734 // Also update associated shortcut (fix #6876)
735 if (isLayerSupported) {
736 Main.registerActionShortcut(mode, mode.getShortcut());
737 } else {
738 Main.unregisterActionShortcut(mode.getShortcut());
739 }
740 }
741 AudioPlayer.reset();
742 repaint();
743 }
744
745 /**
746 * Replies the currently active layer
747 *
748 * @return the currently active layer (may be null)
749 */
750 public Layer getActiveLayer() {
751 return activeLayer;
752 }
753
754 /**
755 * Replies the current edit layer, if any
756 *
757 * @return the current edit layer. May be null.
758 */
759 public OsmDataLayer getEditLayer() {
760 return editLayer;
761 }
762
763 /**
764 * replies true if the list of layers managed by this map view contain layer
765 *
766 * @param layer the layer
767 * @return true if the list of layers managed by this map view contain layer
768 */
769 public boolean hasLayer(Layer layer) {
770 return layers.contains(layer);
771 }
772
773 /**
774 * Tries to zoom to the download boundingbox[es] of the current edit layer
775 * (aka {@link OsmDataLayer}). If the edit layer has multiple download bounding
776 * boxes it zooms to a large virtual bounding box containing all smaller ones.
777 *
778 * @return <code>true</code> if a zoom operation has been performed
779 */
780 public boolean zoomToDataSetBoundingBox(DataSet ds) {
781 // In case we already have an existing data layer ...
782 OsmDataLayer layer= getEditLayer();
783 if (layer == null)
784 return false;
785 Collection<DataSource> dataSources = ds.dataSources;
786 // ... with bounding box[es] of data loaded from OSM or a file...
787 BoundingXYVisitor bbox = new BoundingXYVisitor();
788 for (DataSource source : dataSources) {
789 bbox.visit(source.bounds);
790 }
791 if (bbox.hasExtend()) {
792 // ... we zoom to it's bounding box
793 recalculateCenterScale(bbox);
794 return true;
795 }
796 return false;
797 }
798
799 public boolean addTemporaryLayer(MapViewPaintable mvp) {
800 if (temporaryLayers.contains(mvp)) return false;
801 return temporaryLayers.add(mvp);
802 }
803
804 public boolean removeTemporaryLayer(MapViewPaintable mvp) {
805 return temporaryLayers.remove(mvp);
806 }
807
808 public void propertyChange(PropertyChangeEvent evt) {
809 if (evt.getPropertyName().equals(Layer.VISIBLE_PROP)) {
810 repaint();
811 } else if (evt.getPropertyName().equals(Layer.OPACITY_PROP)) {
812 Layer l = (Layer)evt.getSource();
813 if (l.isVisible()) {
814 changedLayer = l;
815 repaint();
816 }
817 } else if (evt.getPropertyName().equals(OsmDataLayer.REQUIRES_SAVE_TO_DISK_PROP)
818 || evt.getPropertyName().equals(OsmDataLayer.REQUIRES_UPLOAD_TO_SERVER_PROP)) {
819 OsmDataLayer layer = (OsmDataLayer)evt.getSource();
820 if (layer == getEditLayer()) {
821 refreshTitle();
822 }
823 }
824 }
825
826 protected void refreshTitle() {
827 boolean dirty = editLayer != null && (editLayer.requiresSaveToFile() || editLayer.requiresUploadToServer());
828 if (dirty) {
829 JOptionPane.getFrameForComponent(Main.parent).setTitle("* " + tr("Java OpenStreetMap Editor"));
830 } else {
831 JOptionPane.getFrameForComponent(Main.parent).setTitle(tr("Java OpenStreetMap Editor"));
832 }
833 }
834
835 public synchronized void preferenceChanged(PreferenceChangeEvent e) {
836 paintPreferencesChanged = true;
837 }
838
839 private SelectionChangedListener repaintSelectionChangedListener = new SelectionChangedListener(){
840 public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
841 repaint();
842 }
843 };
844
845 public void destroy() {
846 Main.pref.removePreferenceChangeListener(this);
847 DataSet.removeSelectionListener(repaintSelectionChangedListener);
848 MultipolygonCache.getInstance().clear(this);
849 }
850
851}
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