source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 3675

Last change on this file since 3675 was 3675, checked in by bastiK, 14 years ago

debug output for autosave (#5559 and others)
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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.Color;
7import java.awt.Graphics;
8import java.awt.Graphics2D;
9import java.awt.Point;
10import java.awt.Rectangle;
11import java.awt.event.ComponentAdapter;
12import java.awt.event.ComponentEvent;
13import java.awt.event.MouseEvent;
14import java.awt.event.MouseMotionListener;
15import java.awt.geom.Area;
16import java.awt.geom.GeneralPath;
17import java.awt.image.BufferedImage;
18import java.beans.PropertyChangeEvent;
19import java.beans.PropertyChangeListener;
20import java.util.ArrayList;
21import java.util.Collection;
22import java.util.Collections;
23import java.util.Comparator;
24import java.util.Enumeration;
25import java.util.LinkedList;
26import java.util.List;
27import java.util.concurrent.CopyOnWriteArrayList;
28
29import javax.swing.AbstractButton;
30import javax.swing.JOptionPane;
31import javax.swing.JPanel;
32
33import org.openstreetmap.josm.Main;
34import org.openstreetmap.josm.actions.AutoScaleAction;
35import org.openstreetmap.josm.actions.mapmode.MapMode;
36import org.openstreetmap.josm.data.Bounds;
37import org.openstreetmap.josm.data.Preferences.PreferenceChangeEvent;
38import org.openstreetmap.josm.data.Preferences.PreferenceChangedListener;
39import org.openstreetmap.josm.data.SelectionChangedListener;
40import org.openstreetmap.josm.data.coor.LatLon;
41import org.openstreetmap.josm.data.osm.DataSet;
42import org.openstreetmap.josm.data.osm.DataSource;
43import org.openstreetmap.josm.data.osm.OsmPrimitive;
44import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
45import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors;
46import org.openstreetmap.josm.gui.layer.GpxLayer;
47import org.openstreetmap.josm.gui.layer.Layer;
48import org.openstreetmap.josm.gui.layer.MapViewPaintable;
49import org.openstreetmap.josm.gui.layer.OsmDataLayer;
50import org.openstreetmap.josm.gui.layer.markerlayer.MarkerLayer;
51import org.openstreetmap.josm.gui.layer.markerlayer.PlayHeadMarker;
52import org.openstreetmap.josm.tools.AudioPlayer;
53import org.openstreetmap.josm.tools.BugReportExceptionHandler;
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 an 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
118 * the listener in case there is an edit layer present
119 */
120 public static void addEditLayerChangeListener(EditLayerChangeListener listener, boolean initialFire) {
121 addEditLayerChangeListener(listener);
122 if (initialFire) {
123 if (Main.map != null && Main.map.mapView != null && Main.map.mapView.getEditLayer() != null) {
124 fireEditLayerChanged(null, Main.map.mapView.getEditLayer());
125 }
126 }
127 }
128
129 public static void addEditLayerChangeListener(EditLayerChangeListener listener) {
130 if (listener != null) {
131 editLayerChangeListeners.addIfAbsent(listener);
132 }
133 }
134
135 protected static void fireActiveLayerChanged(Layer oldLayer, Layer newLayer) {
136 for (LayerChangeListener l : layerChangeListeners) {
137 l.activeLayerChange(oldLayer, newLayer);
138 }
139 }
140
141 protected static void fireLayerAdded(Layer newLayer) {
142 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
143 l.layerAdded(newLayer);
144 }
145 }
146
147 protected static void fireLayerRemoved(Layer layer) {
148 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
149 l.layerRemoved(layer);
150 }
151 }
152
153 protected static void fireEditLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
154 for (EditLayerChangeListener l : editLayerChangeListeners) {
155 l.editLayerChanged(oldLayer, newLayer);
156 }
157 }
158
159 /**
160 * A list of all layers currently loaded.
161 */
162 private final List<Layer> layers = new ArrayList<Layer>();
163 /**
164 * The play head marker: there is only one of these so it isn't in any specific layer
165 */
166 public PlayHeadMarker playHeadMarker = null;
167
168 /**
169 * The layer from the layers list that is currently active.
170 */
171 private Layer activeLayer;
172
173 private OsmDataLayer editLayer;
174
175 /**
176 * The last event performed by mouse.
177 */
178 public MouseEvent lastMEvent = new MouseEvent(this, 0, 0, 0, 0, 0, 0, false); // In case somebody reads it before first mouse move
179
180 private LinkedList<MapViewPaintable> temporaryLayers = new LinkedList<MapViewPaintable>();
181
182 private BufferedImage nonChangedLayersBuffer;
183 private BufferedImage offscreenBuffer;
184 // Layers that wasn't changed since last paint
185 private final List<Layer> nonChangedLayers = new ArrayList<Layer>();
186 private int lastViewID;
187 private boolean paintPreferencesChanged = true;
188 private Rectangle lastClipBounds = new Rectangle();
189
190 public MapView(final JPanel contentPane) {
191 Main.pref.addPreferenceChangeListener(this);
192
193 // new MoveAction(MoveAction.Direction.UP);
194 // new MoveAction(MoveAction.Direction.DOWN);
195 // new MoveAction(MoveAction.Direction.LEFT);
196 // new MoveAction(MoveAction.Direction.RIGHT);
197
198 addComponentListener(new ComponentAdapter(){
199 @Override public void componentResized(ComponentEvent e) {
200 removeComponentListener(this);
201
202 MapSlider zoomSlider = new MapSlider(MapView.this);
203 add(zoomSlider);
204 zoomSlider.setBounds(3, 0, 114, 30);
205
206 MapScaler scaler = new MapScaler(MapView.this);
207 add(scaler);
208 scaler.setLocation(10,30);
209
210 OsmDataLayer layer = getEditLayer();
211 if (layer != null) {
212 if (!zoomToDataSetBoundingBox(layer.data)) {
213 // no bounding box defined
214 AutoScaleAction.autoScale("data");
215 }
216 } else {
217 AutoScaleAction.autoScale("layer");
218 }
219
220 new MapMover(MapView.this, contentPane);
221 }
222 });
223
224 // listend to selection changes to redraw the map
225 DataSet.addSelectionListener(repaintSelectionChangedListener);
226
227 //store the last mouse action
228 this.addMouseMotionListener(new MouseMotionListener() {
229 public void mouseDragged(MouseEvent e) {
230 mouseMoved(e);
231 }
232 public void mouseMoved(MouseEvent e) {
233 lastMEvent = e;
234 }
235 });
236 }
237
238 /**
239 * Adds a GPX layer. A GPX layer is added below the lowest data layer.
240 *
241 * @param layer the GPX layer
242 */
243 protected void addGpxLayer(GpxLayer layer) {
244 if (layers.isEmpty()) {
245 layers.add(layer);
246 return;
247 }
248 for (int i=layers.size()-1; i>= 0; i--) {
249 if (layers.get(i) instanceof OsmDataLayer) {
250 if (i == layers.size()-1) {
251 layers.add(layer);
252 } else {
253 layers.add(i+1, layer);
254 }
255 return;
256 }
257 }
258 layers.add(0, layer);
259 }
260
261 /**
262 * Add a layer to the current MapView. The layer will be added at topmost
263 * position.
264 */
265 public void addLayer(Layer layer) {
266 if (layer instanceof MarkerLayer && playHeadMarker == null) {
267 playHeadMarker = PlayHeadMarker.create();
268 }
269
270 if (layer instanceof GpxLayer) {
271 addGpxLayer((GpxLayer)layer);
272 } else if (layer.isBackgroundLayer() || layers.isEmpty()) {
273 layers.add(layer);
274 } else {
275 layers.add(0, layer);
276 }
277 fireLayerAdded(layer);
278 if (layer instanceof OsmDataLayer || activeLayer == null) {
279 // autoselect the new layer
280 setActiveLayer(layer);
281 }
282 layer.addPropertyChangeListener(this);
283 AudioPlayer.reset();
284 repaint();
285 }
286
287 @Override
288 protected DataSet getCurrentDataSet() {
289 if (editLayer != null)
290 return editLayer.data;
291 else
292 return null;
293 }
294
295 /**
296 * Replies true if the active layer is drawable.
297 *
298 * @return true if the active layer is drawable, false otherwise
299 */
300 public boolean isActiveLayerDrawable() {
301 return editLayer != null;
302 }
303
304 /**
305 * Replies true if the active layer is visible.
306 *
307 * @return true if the active layer is visible, false otherwise
308 */
309 public boolean isActiveLayerVisible() {
310 return isActiveLayerDrawable() && editLayer.isVisible();
311 }
312
313 /**
314 * Determines the next active data layer according to the following
315 * rules:
316 * <ul>
317 * <li>if there is at least one {@see OsmDataLayer} the first one
318 * becomes active</li>
319 * <li>otherwise, the top most layer of any type becomes active</li>
320 * </ul>
321 *
322 * @return the next active data layer
323 */
324 protected Layer determineNextActiveLayer(List<Layer> layersList) {
325 // First look for data layer
326 for (Layer layer:layersList) {
327 if (layer instanceof OsmDataLayer)
328 return layer;
329 }
330
331 // Then any layer
332 if (!layersList.isEmpty())
333 return layersList.get(0);
334
335 // and then give up
336 return null;
337
338 }
339
340 /**
341 * Remove the layer from the mapview. If the layer was in the list before,
342 * an LayerChange event is fired.
343 */
344 public void removeLayer(Layer layer) {
345 List<Layer> layersList = new ArrayList<Layer>(layers);
346
347 if (!layersList.remove(layer))
348 return;
349
350 setEditLayer(layersList);
351
352 if (layer == activeLayer) {
353 setActiveLayer(determineNextActiveLayer(layersList), false);
354 }
355
356 layers.remove(layer);
357 fireLayerRemoved(layer);
358 layer.removePropertyChangeListener(this);
359 layer.destroy();
360 AudioPlayer.reset();
361 repaint();
362 }
363
364 private boolean virtualNodesEnabled = false;
365
366 public void setVirtualNodesEnabled(boolean enabled) {
367 if(virtualNodesEnabled != enabled) {
368 virtualNodesEnabled = enabled;
369 repaint();
370 }
371 }
372 public boolean isVirtualNodesEnabled() {
373 return virtualNodesEnabled;
374 }
375
376 /**
377 * Moves the layer to the given new position. No event is fired, but repaints
378 * according to the new Z-Order of the layers.
379 *
380 * @param layer The layer to move
381 * @param pos The new position of the layer
382 */
383 public void moveLayer(Layer layer, int pos) {
384 int curLayerPos = layers.indexOf(layer);
385 if (curLayerPos == -1)
386 throw new IllegalArgumentException(tr("Layer not in list."));
387 if (pos == curLayerPos)
388 return; // already in place.
389 layers.remove(curLayerPos);
390 if (pos >= layers.size()) {
391 layers.add(layer);
392 } else {
393 layers.add(pos, layer);
394 }
395 setEditLayer(layers);
396 AudioPlayer.reset();
397 repaint();
398 }
399
400 public int getLayerPos(Layer layer) {
401 int curLayerPos = layers.indexOf(layer);
402 if (curLayerPos == -1)
403 throw new IllegalArgumentException(tr("Layer not in list."));
404 return curLayerPos;
405 }
406
407 /**
408 * Creates a list of the visible layers in Z-Order, the layer with the lowest Z-Order
409 * first, layer with the highest Z-Order last.
410 *
411 * @return a list of the visible in Z-Order, the layer with the lowest Z-Order
412 * first, layer with the highest Z-Order last.
413 */
414 protected List<Layer> getVisibleLayersInZOrder() {
415 ArrayList<Layer> ret = new ArrayList<Layer>();
416 for (Layer l: layers) {
417 if (l.isVisible()) {
418 ret.add(l);
419 }
420 }
421 // sort according to position in the list of layers, with one exception:
422 // an active data layer always becomes a higher Z-Order than all other
423 // data layers
424 //
425 Collections.sort(
426 ret,
427 new Comparator<Layer>() {
428 public int compare(Layer l1, Layer l2) {
429 if (l1 instanceof OsmDataLayer && l2 instanceof OsmDataLayer) {
430 if (l1 == getActiveLayer()) return -1;
431 if (l2 == getActiveLayer()) return 1;
432 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
433 } else
434 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
435 }
436 }
437 );
438 Collections.reverse(ret);
439 return ret;
440 }
441
442 /**
443 * Draw the component.
444 */
445 @Override public void paint(Graphics g) {
446 if (BugReportExceptionHandler.exceptionHandlingInProgress())
447 return;
448
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 private SelectionChangedListener repaintSelectionChangedListener = new SelectionChangedListener(){
808 public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
809 repaint();
810 }
811 };
812
813 public void destroy() {
814 Main.pref.removePreferenceChangeListener(this);
815 DataSet.removeSelectionListener(repaintSelectionChangedListener);
816 }
817
818}
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