source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 3346

Last change on this file since 3346 was 3327, checked in by jttt, 14 years ago

Fix some of "Keystroke %s is already assigned to %s, will be overridden by %s" warnings
  • Property svn:eol-style set to native
File size: 26.7 KB
Line 
1// License: GPL. See LICENSE file for details.
2
3package org.openstreetmap.josm.gui;
4
5import static org.openstreetmap.josm.tools.I18n.tr;
6
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.SelectionChangedListener;
39import org.openstreetmap.josm.data.Preferences.PreferenceChangeEvent;
40import org.openstreetmap.josm.data.Preferences.PreferenceChangedListener;
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.gui.layer.GpxLayer;
48import org.openstreetmap.josm.gui.layer.Layer;
49import org.openstreetmap.josm.gui.layer.MapViewPaintable;
50import org.openstreetmap.josm.gui.layer.OsmDataLayer;
51import org.openstreetmap.josm.gui.layer.markerlayer.MarkerLayer;
52import org.openstreetmap.josm.gui.layer.markerlayer.PlayHeadMarker;
53import org.openstreetmap.josm.tools.AudioPlayer;
54
55/**
56 * This is a component used in the MapFrame for browsing the map. It use is to
57 * provide the MapMode's enough capabilities to operate.
58 *
59 * MapView hold meta-data about the data set currently displayed, as scale level,
60 * center point viewed, what scrolling mode or editing mode is selected or with
61 * what projection the map is viewed etc..
62 *
63 * MapView is able to administrate several layers.
64 *
65 * @author imi
66 */
67public class MapView extends NavigatableComponent implements PropertyChangeListener, PreferenceChangedListener {
68
69 /**
70 * Interface to notify listeners of the change of the active layer.
71 * @author imi
72 */
73 public interface LayerChangeListener {
74 void activeLayerChange(Layer oldLayer, Layer newLayer);
75 void layerAdded(Layer newLayer);
76 void layerRemoved(Layer oldLayer);
77 }
78
79 public interface EditLayerChangeListener {
80 void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer);
81 }
82
83 /**
84 * the layer listeners
85 */
86 private static final CopyOnWriteArrayList<MapView.LayerChangeListener> layerChangeListeners = new CopyOnWriteArrayList<MapView.LayerChangeListener>();
87 private static final CopyOnWriteArrayList<EditLayerChangeListener> editLayerChangeListeners = new CopyOnWriteArrayList<EditLayerChangeListener>();
88
89 /**
90 * Removes a layer change listener
91 *
92 * @param listener the listener. Ignored if null or already registered.
93 */
94 public static void removeLayerChangeListener(MapView.LayerChangeListener listener) {
95 layerChangeListeners.remove(listener);
96 }
97
98 public static void removeEditLayerChangeListener(EditLayerChangeListener listener) {
99 editLayerChangeListeners.remove(listener);
100 }
101
102 /**
103 * Adds a layer change listener
104 *
105 * @param listener the listener. Ignored if null or already registered.
106 */
107 public static void addLayerChangeListener(MapView.LayerChangeListener listener) {
108 if (listener != null) {
109 layerChangeListeners.addIfAbsent(listener);
110 }
111 }
112
113 /**
114 * Adds a edit layer change listener
115 *
116 * @param listener the listener. Ignored if null or already registered.
117 * @param initialFire Fire an edit-layer-changed-event right after adding the listener.
118 */
119 public static void addEditLayerChangeListener(EditLayerChangeListener listener, boolean initialFire) {
120 addEditLayerChangeListener(listener);
121 if (initialFire) {
122 if (Main.map != null && Main.map.mapView != null && Main.map.mapView.getEditLayer() != null) {
123 fireEditLayerChanged(null, Main.map.mapView.getEditLayer());
124 }
125 }
126 }
127
128 public static void addEditLayerChangeListener(EditLayerChangeListener listener) {
129 if (listener != null) {
130 editLayerChangeListeners.addIfAbsent(listener);
131 }
132 }
133
134 protected static void fireActiveLayerChanged(Layer oldLayer, Layer newLayer) {
135 for (LayerChangeListener l : layerChangeListeners) {
136 l.activeLayerChange(oldLayer, newLayer);
137 }
138 }
139
140 protected static void fireLayerAdded(Layer newLayer) {
141 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
142 l.layerAdded(newLayer);
143 }
144 }
145
146 protected static void fireLayerRemoved(Layer layer) {
147 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
148 l.layerRemoved(layer);
149 }
150 }
151
152 protected static void fireEditLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
153 for (EditLayerChangeListener l : editLayerChangeListeners) {
154 l.editLayerChanged(oldLayer, newLayer);
155 }
156 }
157
158 /**
159 * A list of all layers currently loaded.
160 */
161 private final List<Layer> layers = new ArrayList<Layer>();
162 /**
163 * The play head marker: there is only one of these so it isn't in any specific layer
164 */
165 public PlayHeadMarker playHeadMarker = null;
166
167 /**
168 * The layer from the layers list that is currently active.
169 */
170 private Layer activeLayer;
171
172 private OsmDataLayer editLayer;
173
174 /**
175 * The last event performed by mouse.
176 */
177 public MouseEvent lastMEvent;
178
179 private LinkedList<MapViewPaintable> temporaryLayers = new LinkedList<MapViewPaintable>();
180
181 private BufferedImage nonChangedLayersBuffer;
182 private BufferedImage offscreenBuffer;
183 // Layers that wasn't changed since last paint
184 private final List<Layer> nonChangedLayers = new ArrayList<Layer>();
185 private int lastViewID;
186 private boolean paintPreferencesChanged = true;
187 private Rectangle lastClipBounds = new Rectangle();
188
189 public MapView(final JPanel contentPane) {
190 Main.pref.addPreferenceChangeListener(this);
191
192 // new MoveAction(MoveAction.Direction.UP);
193 // new MoveAction(MoveAction.Direction.DOWN);
194 // new MoveAction(MoveAction.Direction.LEFT);
195 // new MoveAction(MoveAction.Direction.RIGHT);
196
197 addComponentListener(new ComponentAdapter(){
198 @Override public void componentResized(ComponentEvent e) {
199 removeComponentListener(this);
200
201 MapSlider zoomSlider = new MapSlider(MapView.this);
202 add(zoomSlider);
203 zoomSlider.setBounds(3, 0, 114, 30);
204
205 MapScaler scaler = new MapScaler(MapView.this);
206 add(scaler);
207 scaler.setLocation(10,30);
208
209 OsmDataLayer layer = getEditLayer();
210 if (layer != null) {
211 if (!zoomToDataSetBoundingBox(layer.data)) {
212 // no bounding box defined
213 AutoScaleAction.autoScale("data");
214 }
215 } else {
216 AutoScaleAction.autoScale("layer");
217 }
218
219 new MapMover(MapView.this, contentPane);
220 }
221 });
222
223 // listend to selection changes to redraw the map
224 DataSet.selListeners.add(new SelectionChangedListener(){
225 public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
226 repaint();
227 }
228 });
229
230 //store the last mouse action
231 this.addMouseMotionListener(new MouseMotionListener() {
232 public void mouseDragged(MouseEvent e) {
233 mouseMoved(e);
234 }
235 public void mouseMoved(MouseEvent e) {
236 lastMEvent = e;
237 }
238 });
239 }
240
241 /**
242 * Adds a GPX layer. A GPX layer is added below the lowest data layer.
243 *
244 * @param layer the GPX layer
245 */
246 protected void addGpxLayer(GpxLayer layer) {
247 if (layers.isEmpty()) {
248 layers.add(layer);
249 return;
250 }
251 for (int i=layers.size()-1; i>= 0; i--) {
252 if (layers.get(i) instanceof OsmDataLayer) {
253 if (i == layers.size()-1) {
254 layers.add(layer);
255 } else {
256 layers.add(i+1, layer);
257 }
258 return;
259 }
260 }
261 layers.add(0, layer);
262 }
263
264 /**
265 * Add a layer to the current MapView. The layer will be added at topmost
266 * position.
267 */
268 public void addLayer(Layer layer) {
269 if (layer instanceof MarkerLayer && playHeadMarker == null) {
270 playHeadMarker = PlayHeadMarker.create();
271 }
272
273 if (layer instanceof GpxLayer) {
274 addGpxLayer((GpxLayer)layer);
275 } else if (layer.isBackgroundLayer() || layers.isEmpty()) {
276 layers.add(layer);
277 } else {
278 layers.add(0, layer);
279 }
280 fireLayerAdded(layer);
281 if (layer instanceof OsmDataLayer || activeLayer == null) {
282 // autoselect the new layer
283 setActiveLayer(layer);
284 }
285 layer.addPropertyChangeListener(this);
286 AudioPlayer.reset();
287 repaint();
288 }
289
290 @Override
291 protected DataSet getCurrentDataSet() {
292 if (editLayer != null)
293 return editLayer.data;
294 else
295 return null;
296 }
297
298 /**
299 * Replies true if the active layer is drawable.
300 *
301 * @return true if the active layer is drawable, false otherwise
302 */
303 public boolean isActiveLayerDrawable() {
304 return editLayer != null;
305 }
306
307 /**
308 * Replies true if the active layer is visible.
309 *
310 * @return true if the active layer is visible, false otherwise
311 */
312 public boolean isActiveLayerVisible() {
313 return isActiveLayerDrawable() && editLayer.isVisible();
314 }
315
316 /**
317 * Determines the next active data layer according to the following
318 * rules:
319 * <ul>
320 * <li>if there is at least one {@see OsmDataLayer} the first one
321 * becomes active</li>
322 * <li>otherwise, the top most layer of any type becomes active</li>
323 * </ul>
324 *
325 * @return the next active data layer
326 */
327 protected Layer determineNextActiveLayer(List<Layer> layersList) {
328 // First look for data layer
329 for (Layer layer:layersList) {
330 if (layer instanceof OsmDataLayer)
331 return layer;
332 }
333
334 // Then any layer
335 if (!layersList.isEmpty())
336 return layersList.get(0);
337
338 // and then give up
339 return null;
340
341 }
342
343 /**
344 * Remove the layer from the mapview. If the layer was in the list before,
345 * an LayerChange event is fired.
346 */
347 public void removeLayer(Layer layer) {
348 List<Layer> layersList = new ArrayList<Layer>(layers);
349
350 if (!layersList.remove(layer))
351 return;
352
353 setEditLayer(layersList);
354
355 if (layer == activeLayer) {
356 setActiveLayer(determineNextActiveLayer(layersList), false);
357 }
358
359 layers.remove(layer);
360 fireLayerRemoved(layer);
361 layer.removePropertyChangeListener(this);
362 layer.destroy();
363 AudioPlayer.reset();
364 repaint();
365 }
366
367 private boolean virtualNodesEnabled = false;
368
369 public void setVirtualNodesEnabled(boolean enabled) {
370 if(virtualNodesEnabled != enabled) {
371 virtualNodesEnabled = enabled;
372 repaint();
373 }
374 }
375 public boolean isVirtualNodesEnabled() {
376 return virtualNodesEnabled;
377 }
378
379 /**
380 * Moves the layer to the given new position. No event is fired, but repaints
381 * according to the new Z-Order of the layers.
382 *
383 * @param layer The layer to move
384 * @param pos The new position of the layer
385 */
386 public void moveLayer(Layer layer, int pos) {
387 int curLayerPos = layers.indexOf(layer);
388 if (curLayerPos == -1)
389 throw new IllegalArgumentException(tr("Layer not in list."));
390 if (pos == curLayerPos)
391 return; // already in place.
392 layers.remove(curLayerPos);
393 if (pos >= layers.size()) {
394 layers.add(layer);
395 } else {
396 layers.add(pos, layer);
397 }
398 setEditLayer(layers);
399 AudioPlayer.reset();
400 repaint();
401 }
402
403 public int getLayerPos(Layer layer) {
404 int curLayerPos = layers.indexOf(layer);
405 if (curLayerPos == -1)
406 throw new IllegalArgumentException(tr("Layer not in list."));
407 return curLayerPos;
408 }
409
410 /**
411 * Creates a list of the visible layers in Z-Order, the layer with the lowest Z-Order
412 * first, layer with the highest Z-Order last.
413 *
414 * @return a list of the visible in Z-Order, the layer with the lowest Z-Order
415 * first, layer with the highest Z-Order last.
416 */
417 protected List<Layer> getVisibleLayersInZOrder() {
418 ArrayList<Layer> ret = new ArrayList<Layer>();
419 for (Layer l: layers) {
420 if (l.isVisible()) {
421 ret.add(l);
422 }
423 }
424 // sort according to position in the list of layers, with one exception:
425 // an active data layer always becomes a higher Z-Order than all other
426 // data layers
427 //
428 Collections.sort(
429 ret,
430 new Comparator<Layer>() {
431 public int compare(Layer l1, Layer l2) {
432 if (l1 instanceof OsmDataLayer && l2 instanceof OsmDataLayer) {
433 if (l1 == getActiveLayer()) return -1;
434 if (l2 == getActiveLayer()) return 1;
435 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
436 } else
437 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
438 }
439 }
440 );
441 Collections.reverse(ret);
442 return ret;
443 }
444
445 /**
446 * Draw the component.
447 */
448 @Override public void paint(Graphics g) {
449 if (center == null)
450 return; // no data loaded yet.
451
452 List<Layer> visibleLayers = getVisibleLayersInZOrder();
453
454 int nonChangedLayersCount = 0;
455 for (Layer l: visibleLayers) {
456 if (l.isChanged()) {
457 break;
458 } else {
459 nonChangedLayersCount++;
460 }
461 }
462
463 boolean canUseBuffer = !paintPreferencesChanged && nonChangedLayers.size() <= nonChangedLayersCount &&
464 lastViewID == getViewID() && lastClipBounds.contains(g.getClipBounds());
465 if (canUseBuffer) {
466 for (int i=0; i<nonChangedLayers.size(); i++) {
467 if (visibleLayers.get(i) != nonChangedLayers.get(i)) {
468 canUseBuffer = false;
469 break;
470 }
471 }
472 }
473
474 if (null == offscreenBuffer || offscreenBuffer.getWidth() != getWidth() || offscreenBuffer.getHeight() != getHeight()) {
475 offscreenBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
476 }
477
478 Graphics2D tempG = offscreenBuffer.createGraphics();
479 tempG.setClip(g.getClip());
480 Bounds box = getLatLonBounds(g.getClipBounds());
481
482 if (!canUseBuffer || nonChangedLayersBuffer == null) {
483 if (null == nonChangedLayersBuffer || nonChangedLayersBuffer.getWidth() != getWidth() || nonChangedLayersBuffer.getHeight() != getHeight()) {
484 nonChangedLayersBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
485 }
486 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
487 g2.setClip(g.getClip());
488 g2.setColor(PaintColors.BACKGROUND.get());
489 g2.fillRect(0, 0, getWidth(), getHeight());
490
491 for (int i=0; i<nonChangedLayersCount; i++) {
492 visibleLayers.get(i).paint(g2, this, box);
493 }
494 } else {
495 // Maybe there were more unchanged layers then last time - draw them to buffer
496 if (nonChangedLayers.size() != nonChangedLayersCount) {
497 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
498 g2.setClip(g.getClip());
499 for (int i=nonChangedLayers.size(); i<nonChangedLayersCount; i++) {
500 visibleLayers.get(i).paint(g2, this, box);
501 }
502 }
503 }
504
505 nonChangedLayers.clear();
506 for (int i=0; i<nonChangedLayersCount; i++) {
507 nonChangedLayers.add(visibleLayers.get(i));
508 }
509 lastViewID = getViewID();
510 paintPreferencesChanged = false;
511 lastClipBounds = g.getClipBounds();
512
513 tempG.drawImage(nonChangedLayersBuffer, 0, 0, null);
514
515 for (int i=nonChangedLayersCount; i<visibleLayers.size(); i++) {
516 visibleLayers.get(i).paint(tempG, this, box);
517 }
518
519 for (MapViewPaintable mvp : temporaryLayers) {
520 mvp.paint(tempG, this, box);
521 }
522
523 // draw world borders
524 tempG.setColor(Color.WHITE);
525 Bounds b = getProjection().getWorldBoundsLatLon();
526 double lat = b.getMin().lat();
527 double lon = b.getMin().lon();
528
529 Point p = getPoint(b.getMin());
530
531 GeneralPath path = new GeneralPath();
532
533 path.moveTo(p.x, p.y);
534 double max = b.getMax().lat();
535 for(; lat <= max; lat += 1.0)
536 {
537 p = getPoint(new LatLon(lat >= max ? max : lat, lon));
538 path.lineTo(p.x, p.y);
539 }
540 lat = max; max = b.getMax().lon();
541 for(; lon <= max; lon += 1.0)
542 {
543 p = getPoint(new LatLon(lat, lon >= max ? max : lon));
544 path.lineTo(p.x, p.y);
545 }
546 lon = max; max = b.getMin().lat();
547 for(; lat >= max; lat -= 1.0)
548 {
549 p = getPoint(new LatLon(lat <= max ? max : lat, lon));
550 path.lineTo(p.x, p.y);
551 }
552 lat = max; max = b.getMin().lon();
553 for(; lon >= max; lon -= 1.0)
554 {
555 p = getPoint(new LatLon(lat, lon <= max ? max : lon));
556 path.lineTo(p.x, p.y);
557 }
558
559 int w = getWidth();
560 int h = getHeight();
561
562 // Work around OpenJDK having problems when drawing out of bounds
563 final Area border = new Area(path);
564 // Make the viewport 1px larger in every direction to prevent an
565 // additional 1px border when zooming in
566 final Area viewport = new Area(new Rectangle(-1, -1, w + 2, h + 2));
567 border.intersect(viewport);
568 tempG.draw(border);
569
570 if (Main.map.filterDialog != null) {
571 Main.map.filterDialog.drawOSDText(tempG);
572 }
573
574 if (playHeadMarker != null) {
575 playHeadMarker.paint(tempG, this);
576 }
577
578 g.drawImage(offscreenBuffer, 0, 0, null);
579 super.paint(g);
580 }
581
582 /**
583 * Set the new dimension to the view.
584 */
585 public void recalculateCenterScale(BoundingXYVisitor box) {
586 if (box == null) {
587 box = new BoundingXYVisitor();
588 }
589 if (box.getBounds() == null) {
590 box.visit(getProjection().getWorldBoundsLatLon());
591 }
592 if (!box.hasExtend()) {
593 box.enlargeBoundingBox();
594 }
595
596 zoomTo(box.getBounds());
597 }
598
599 /**
600 * @return An unmodifiable collection of all layers
601 */
602 public Collection<Layer> getAllLayers() {
603 return Collections.unmodifiableCollection(layers);
604 }
605
606 /**
607 * @return An unmodifiable ordered list of all layers
608 */
609 public List<Layer> getAllLayersAsList() {
610 return Collections.unmodifiableList(layers);
611 }
612
613 /**
614 * Replies an unmodifiable list of layers of a certain type.
615 *
616 * Example:
617 * <pre>
618 * List<WMSLayer> wmsLayers = getLayersOfType(WMSLayer.class);
619 * </pre>
620 *
621 * @return an unmodifiable list of layers of a certain type.
622 */
623 public <T> List<T> getLayersOfType(Class<T> ofType) {
624 ArrayList<T> ret = new ArrayList<T>();
625 for (Layer layer : getAllLayersAsList()) {
626 if (ofType.isInstance(layer)) {
627 ret.add(ofType.cast(layer));
628 }
629 }
630 return ret;
631 }
632
633 /**
634 * Replies the number of layers managed by this mav view
635 *
636 * @return the number of layers managed by this mav view
637 */
638 public int getNumLayers() {
639 return layers.size();
640 }
641
642 /**
643 * Replies true if there is at least one layer in this map view
644 *
645 * @return true if there is at least one layer in this map view
646 */
647 public boolean hasLayers() {
648 return getNumLayers() > 0;
649 }
650
651 private void setEditLayer(List<Layer> layersList) {
652 OsmDataLayer newEditLayer = layersList.contains(editLayer)?editLayer:null;
653 OsmDataLayer oldEditLayer = editLayer;
654
655 // Find new edit layer
656 if (activeLayer != editLayer || !layersList.contains(editLayer)) {
657 if (activeLayer instanceof OsmDataLayer && layersList.contains(activeLayer)) {
658 newEditLayer = (OsmDataLayer) activeLayer;
659 } else {
660 for (Layer layer:layersList) {
661 if (layer instanceof OsmDataLayer) {
662 newEditLayer = (OsmDataLayer) layer;
663 break;
664 }
665 }
666 }
667 }
668
669 // Set new edit layer
670 if (newEditLayer != editLayer) {
671 if (newEditLayer == null) {
672 getCurrentDataSet().setSelected();
673 }
674
675 editLayer = newEditLayer;
676 fireEditLayerChanged(oldEditLayer, newEditLayer);
677 refreshTitle();
678 }
679
680 }
681
682 /**
683 * Sets the active layer to <code>layer</code>. If <code>layer</code> is an instance
684 * of {@see OsmDataLayer} also sets {@see #editLayer} to <code>layer</code>.
685 *
686 * @param layer the layer to be activate; must be one of the layers in the list of layers
687 * @exception IllegalArgumentException thrown if layer is not in the lis of layers
688 */
689 public void setActiveLayer(Layer layer) {
690 setActiveLayer(layer, true);
691 }
692
693 private void setActiveLayer(Layer layer, boolean setEditLayer) {
694 if (layer != null && !layers.contains(layer))
695 throw new IllegalArgumentException(tr("Layer ''{0}'' must be in list of layers", layer.toString()));
696
697 if (layer == activeLayer)
698 return;
699
700 Layer old = activeLayer;
701 activeLayer = layer;
702 if (setEditLayer) {
703 setEditLayer(layers);
704 }
705 fireActiveLayerChanged(old, layer);
706
707 /* This only makes the buttons look disabled. Disabling the actions as well requires
708 * the user to re-select the tool after i.e. moving a layer. While testing I found
709 * that I switch layers and actions at the same time and it was annoying to mind the
710 * order. This way it works as visual clue for new users */
711 for (Enumeration<AbstractButton> e = Main.map.toolGroup.getElements() ; e.hasMoreElements() ;) {
712 AbstractButton x=e.nextElement();
713 x.setEnabled(((MapMode)x.getAction()).layerIsSupported(layer));
714 }
715 AudioPlayer.reset();
716 repaint();
717 }
718
719 /**
720 * Replies the currently active layer
721 *
722 * @return the currently active layer (may be null)
723 */
724 public Layer getActiveLayer() {
725 return activeLayer;
726 }
727
728 /**
729 * Replies the current edit layer, if any
730 *
731 * @return the current edit layer. May be null.
732 */
733 public OsmDataLayer getEditLayer() {
734 return editLayer;
735 }
736
737 /**
738 * replies true if the list of layers managed by this map view contain layer
739 *
740 * @param layer the layer
741 * @return true if the list of layers managed by this map view contain layer
742 */
743 public boolean hasLayer(Layer layer) {
744 return layers.contains(layer);
745 }
746
747 /**
748 * Tries to zoom to the download boundingbox[es] of the current edit layer
749 * (aka {@link OsmDataLayer}). If the edit layer has multiple download bounding
750 * boxes it zooms to a large virtual bounding box containing all smaller ones.
751 *
752 * @return <code>true</code> if a zoom operation has been performed
753 */
754 public boolean zoomToDataSetBoundingBox(DataSet ds) {
755 // In case we already have an existing data layer ...
756 OsmDataLayer layer= getEditLayer();
757 if (layer == null)
758 return false;
759 Collection<DataSource> dataSources = ds.dataSources;
760 // ... with bounding box[es] of data loaded from OSM or a file...
761 BoundingXYVisitor bbox = new BoundingXYVisitor();
762 for (DataSource source : dataSources) {
763 bbox.visit(source.bounds);
764 }
765 if (bbox.hasExtend()) {
766 // ... we zoom to it's bounding box
767 recalculateCenterScale(bbox);
768 return true;
769 }
770 return false;
771 }
772
773 public boolean addTemporaryLayer(MapViewPaintable mvp) {
774 if (temporaryLayers.contains(mvp)) return false;
775 return temporaryLayers.add(mvp);
776 }
777
778 public boolean removeTemporaryLayer(MapViewPaintable mvp) {
779 return temporaryLayers.remove(mvp);
780 }
781
782 public void propertyChange(PropertyChangeEvent evt) {
783 if (evt.getPropertyName().equals(Layer.VISIBLE_PROP)) {
784 repaint();
785 } else if (evt.getPropertyName().equals(OsmDataLayer.REQUIRES_SAVE_TO_DISK_PROP)
786 || evt.getPropertyName().equals(OsmDataLayer.REQUIRES_UPLOAD_TO_SERVER_PROP)) {
787 OsmDataLayer layer = (OsmDataLayer)evt.getSource();
788 if (layer == getEditLayer()) {
789 refreshTitle();
790 }
791 }
792 }
793
794 protected void refreshTitle() {
795 boolean dirty = editLayer != null && (editLayer.requiresSaveToFile() || editLayer.requiresUploadToServer());
796 if (dirty) {
797 JOptionPane.getFrameForComponent(Main.parent).setTitle("* " + tr("Java OpenStreetMap Editor"));
798 } else {
799 JOptionPane.getFrameForComponent(Main.parent).setTitle(tr("Java OpenStreetMap Editor"));
800 }
801 }
802
803 public void preferenceChanged(PreferenceChangeEvent e) {
804 paintPreferencesChanged = true;
805 }
806
807}
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