source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 3252

Last change on this file since 3252 was 3252, checked in by jttt, 14 years ago

Fix #2234: Translation can cause JosmActions to illegally handle shortcuts
  • 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.MoveAction;
37import org.openstreetmap.josm.actions.mapmode.MapMode;
38import org.openstreetmap.josm.data.Bounds;
39import org.openstreetmap.josm.data.SelectionChangedListener;
40import org.openstreetmap.josm.data.Preferences.PreferenceChangeEvent;
41import org.openstreetmap.josm.data.Preferences.PreferenceChangedListener;
42import org.openstreetmap.josm.data.coor.LatLon;
43import org.openstreetmap.josm.data.osm.DataSet;
44import org.openstreetmap.josm.data.osm.DataSource;
45import org.openstreetmap.josm.data.osm.OsmPrimitive;
46import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
47import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors;
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;
55
56/**
57 * This is a component used in the MapFrame for browsing the map. It use is to
58 * provide the MapMode's enough capabilities to operate.
59 *
60 * MapView hold meta-data about the data set currently displayed, as scale level,
61 * center point viewed, what scrolling mode or editing mode is selected or with
62 * what projection the map is viewed etc..
63 *
64 * MapView is able to administrate several layers.
65 *
66 * @author imi
67 */
68public class MapView extends NavigatableComponent implements PropertyChangeListener, PreferenceChangedListener {
69
70 /**
71 * Interface to notify listeners of the change of the active layer.
72 * @author imi
73 */
74 public interface LayerChangeListener {
75 void activeLayerChange(Layer oldLayer, Layer newLayer);
76 void layerAdded(Layer newLayer);
77 void layerRemoved(Layer oldLayer);
78 }
79
80 public interface EditLayerChangeListener {
81 void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer);
82 }
83
84 /**
85 * the layer listeners
86 */
87 private static final CopyOnWriteArrayList<MapView.LayerChangeListener> layerChangeListeners = new CopyOnWriteArrayList<MapView.LayerChangeListener>();
88 private static final CopyOnWriteArrayList<EditLayerChangeListener> editLayerChangeListeners = new CopyOnWriteArrayList<EditLayerChangeListener>();
89
90 /**
91 * Removes a layer change listener
92 *
93 * @param listener the listener. Ignored if null or already registered.
94 */
95 public static void removeLayerChangeListener(MapView.LayerChangeListener listener) {
96 layerChangeListeners.remove(listener);
97 }
98
99 public static void removeEditLayerChangeListener(EditLayerChangeListener listener) {
100 editLayerChangeListeners.remove(listener);
101 }
102
103 /**
104 * Adds a layer change listener
105 *
106 * @param listener the listener. Ignored if null or already registered.
107 */
108 public static void addLayerChangeListener(MapView.LayerChangeListener listener) {
109 if (listener != null) {
110 layerChangeListeners.addIfAbsent(listener);
111 }
112 }
113
114 /**
115 * Adds a edit layer change listener
116 *
117 * @param listener the listener. Ignored if null or already registered.
118 * @param initialFire Fire an edit-layer-changed-event right after adding the listener.
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;
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 addComponentListener(new ComponentAdapter(){
193 @Override public void componentResized(ComponentEvent e) {
194 removeComponentListener(this);
195
196 MapSlider zoomSlider = new MapSlider(MapView.this);
197 add(zoomSlider);
198 zoomSlider.setBounds(3, 0, 114, 30);
199
200 MapScaler scaler = new MapScaler(MapView.this);
201 add(scaler);
202 scaler.setLocation(10,30);
203
204 OsmDataLayer layer = getEditLayer();
205 if (layer != null) {
206 if (!zoomToDataSetBoundingBox(layer.data)) {
207 // no bounding box defined
208 new AutoScaleAction("data").actionPerformed(null);
209 }
210 } else {
211 new AutoScaleAction("layer").actionPerformed(null);
212 }
213
214 new MapMover(MapView.this, contentPane);
215 new MoveAction(MoveAction.Direction.UP);
216 new MoveAction(MoveAction.Direction.DOWN);
217 new MoveAction(MoveAction.Direction.LEFT);
218 new MoveAction(MoveAction.Direction.RIGHT);
219 }
220 });
221
222 // listend to selection changes to redraw the map
223 DataSet.selListeners.add(new SelectionChangedListener(){
224 public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
225 repaint();
226 }
227 });
228
229 //store the last mouse action
230 this.addMouseMotionListener(new MouseMotionListener() {
231 public void mouseDragged(MouseEvent e) {
232 mouseMoved(e);
233 }
234 public void mouseMoved(MouseEvent e) {
235 lastMEvent = e;
236 }
237 });
238 }
239
240 /**
241 * Adds a GPX layer. A GPX layer is added below the lowest data layer.
242 *
243 * @param layer the GPX layer
244 */
245 protected void addGpxLayer(GpxLayer layer) {
246 if (layers.isEmpty()) {
247 layers.add(layer);
248 return;
249 }
250 for (int i=layers.size()-1; i>= 0; i--) {
251 if (layers.get(i) instanceof OsmDataLayer) {
252 if (i == layers.size()-1) {
253 layers.add(layer);
254 } else {
255 layers.add(i+1, layer);
256 }
257 return;
258 }
259 }
260 layers.add(0, layer);
261 }
262
263 /**
264 * Add a layer to the current MapView. The layer will be added at topmost
265 * position.
266 */
267 public void addLayer(Layer layer) {
268 if (layer instanceof MarkerLayer && playHeadMarker == null) {
269 playHeadMarker = PlayHeadMarker.create();
270 }
271
272 if (layer instanceof GpxLayer) {
273 addGpxLayer((GpxLayer)layer);
274 } else if (layer.isBackgroundLayer() || layers.isEmpty()) {
275 layers.add(layer);
276 } else {
277 layers.add(0, layer);
278 }
279 fireLayerAdded(layer);
280 if (layer instanceof OsmDataLayer || activeLayer == null) {
281 // autoselect the new layer
282 setActiveLayer(layer);
283 }
284 layer.addPropertyChangeListener(this);
285 AudioPlayer.reset();
286 repaint();
287 }
288
289 @Override
290 protected DataSet getCurrentDataSet() {
291 if (editLayer != null)
292 return editLayer.data;
293 else
294 return null;
295 }
296
297 /**
298 * Replies true if the active layer is drawable.
299 *
300 * @return true if the active layer is drawable, false otherwise
301 */
302 public boolean isActiveLayerDrawable() {
303 return editLayer != null;
304 }
305
306 /**
307 * Replies true if the active layer is visible.
308 *
309 * @return true if the active layer is visible, false otherwise
310 */
311 public boolean isActiveLayerVisible() {
312 return isActiveLayerDrawable() && editLayer.isVisible();
313 }
314
315 /**
316 * Determines the next active data layer according to the following
317 * rules:
318 * <ul>
319 * <li>if there is at least one {@see OsmDataLayer} the first one
320 * becomes active</li>
321 * <li>otherwise, the top most layer of any type becomes active</li>
322 * </ul>
323 *
324 * @return the next active data layer
325 */
326 protected Layer determineNextActiveLayer(List<Layer> layersList) {
327 // First look for data layer
328 for (Layer layer:layersList) {
329 if (layer instanceof OsmDataLayer)
330 return layer;
331 }
332
333 // Then any layer
334 if (!layersList.isEmpty())
335 return layersList.get(0);
336
337 // and then give up
338 return null;
339
340 }
341
342 /**
343 * Remove the layer from the mapview. If the layer was in the list before,
344 * an LayerChange event is fired.
345 */
346 public void removeLayer(Layer layer) {
347 List<Layer> layersList = new ArrayList<Layer>(layers);
348
349 if (!layersList.remove(layer))
350 return;
351
352 setEditLayer(layersList);
353
354 if (layer == activeLayer) {
355 setActiveLayer(determineNextActiveLayer(layersList), false);
356 }
357
358 layers.remove(layer);
359 fireLayerRemoved(layer);
360 layer.removePropertyChangeListener(this);
361 layer.destroy();
362 AudioPlayer.reset();
363 repaint();
364 }
365
366 private boolean virtualNodesEnabled = false;
367
368 public void setVirtualNodesEnabled(boolean enabled) {
369 if(virtualNodesEnabled != enabled) {
370 virtualNodesEnabled = enabled;
371 repaint();
372 }
373 }
374 public boolean isVirtualNodesEnabled() {
375 return virtualNodesEnabled;
376 }
377
378 /**
379 * Moves the layer to the given new position. No event is fired, but repaints
380 * according to the new Z-Order of the layers.
381 *
382 * @param layer The layer to move
383 * @param pos The new position of the layer
384 */
385 public void moveLayer(Layer layer, int pos) {
386 int curLayerPos = layers.indexOf(layer);
387 if (curLayerPos == -1)
388 throw new IllegalArgumentException(tr("Layer not in list."));
389 if (pos == curLayerPos)
390 return; // already in place.
391 layers.remove(curLayerPos);
392 if (pos >= layers.size()) {
393 layers.add(layer);
394 } else {
395 layers.add(pos, layer);
396 }
397 setEditLayer(layers);
398 AudioPlayer.reset();
399 repaint();
400 }
401
402 public int getLayerPos(Layer layer) {
403 int curLayerPos = layers.indexOf(layer);
404 if (curLayerPos == -1)
405 throw new IllegalArgumentException(tr("Layer not in list."));
406 return curLayerPos;
407 }
408
409 /**
410 * Creates a list of the visible layers in Z-Order, the layer with the lowest Z-Order
411 * first, layer with the highest Z-Order last.
412 *
413 * @return a list of the visible in Z-Order, the layer with the lowest Z-Order
414 * first, layer with the highest Z-Order last.
415 */
416 protected List<Layer> getVisibleLayersInZOrder() {
417 ArrayList<Layer> ret = new ArrayList<Layer>();
418 for (Layer l: layers) {
419 if (l.isVisible()) {
420 ret.add(l);
421 }
422 }
423 // sort according to position in the list of layers, with one exception:
424 // an active data layer always becomes a higher Z-Order than all other
425 // data layers
426 //
427 Collections.sort(
428 ret,
429 new Comparator<Layer>() {
430 public int compare(Layer l1, Layer l2) {
431 if (l1 instanceof OsmDataLayer && l2 instanceof OsmDataLayer) {
432 if (l1 == getActiveLayer()) return -1;
433 if (l2 == getActiveLayer()) return 1;
434 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
435 } else
436 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
437 }
438 }
439 );
440 Collections.reverse(ret);
441 return ret;
442 }
443
444 /**
445 * Draw the component.
446 */
447 @Override public void paint(Graphics g) {
448 if (center == null)
449 return; // no data loaded yet.
450
451 List<Layer> visibleLayers = getVisibleLayersInZOrder();
452
453 int nonChangedLayersCount = 0;
454 for (Layer l: visibleLayers) {
455 if (l.isChanged()) {
456 break;
457 } else {
458 nonChangedLayersCount++;
459 }
460 }
461
462 boolean canUseBuffer = !paintPreferencesChanged && nonChangedLayers.size() <= nonChangedLayersCount &&
463 lastViewID == getViewID() && lastClipBounds.contains(g.getClipBounds());
464 if (canUseBuffer) {
465 for (int i=0; i<nonChangedLayers.size(); i++) {
466 if (visibleLayers.get(i) != nonChangedLayers.get(i)) {
467 canUseBuffer = false;
468 break;
469 }
470 }
471 }
472
473 if (null == offscreenBuffer || offscreenBuffer.getWidth() != getWidth() || offscreenBuffer.getHeight() != getHeight()) {
474 offscreenBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
475 }
476
477 Graphics2D tempG = offscreenBuffer.createGraphics();
478 tempG.setClip(g.getClip());
479 Bounds box = getLatLonBounds(g.getClipBounds());
480
481 if (!canUseBuffer || nonChangedLayersBuffer == null) {
482 if (null == nonChangedLayersBuffer || nonChangedLayersBuffer.getWidth() != getWidth() || nonChangedLayersBuffer.getHeight() != getHeight()) {
483 nonChangedLayersBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
484 }
485 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
486 g2.setClip(g.getClip());
487 g2.setColor(PaintColors.BACKGROUND.get());
488 g2.fillRect(0, 0, getWidth(), getHeight());
489
490 for (int i=0; i<nonChangedLayersCount; i++) {
491 visibleLayers.get(i).paint(g2, this, box);
492 }
493 } else {
494 // Maybe there were more unchanged layers then last time - draw them to buffer
495 if (nonChangedLayers.size() != nonChangedLayersCount) {
496 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
497 g2.setClip(g.getClip());
498 for (int i=nonChangedLayers.size(); i<nonChangedLayersCount; i++) {
499 visibleLayers.get(i).paint(g2, this, box);
500 }
501 }
502 }
503
504 nonChangedLayers.clear();
505 for (int i=0; i<nonChangedLayersCount; i++) {
506 nonChangedLayers.add(visibleLayers.get(i));
507 }
508 lastViewID = getViewID();
509 paintPreferencesChanged = false;
510 lastClipBounds = g.getClipBounds();
511
512 tempG.drawImage(nonChangedLayersBuffer, 0, 0, null);
513
514 for (int i=nonChangedLayersCount; i<visibleLayers.size(); i++) {
515 visibleLayers.get(i).paint(tempG, this, box);
516 }
517
518 for (MapViewPaintable mvp : temporaryLayers) {
519 mvp.paint(tempG, this, box);
520 }
521
522 // draw world borders
523 tempG.setColor(Color.WHITE);
524 Bounds b = getProjection().getWorldBoundsLatLon();
525 double lat = b.getMin().lat();
526 double lon = b.getMin().lon();
527
528 Point p = getPoint(b.getMin());
529
530 GeneralPath path = new GeneralPath();
531
532 path.moveTo(p.x, p.y);
533 double max = b.getMax().lat();
534 for(; lat <= max; lat += 1.0)
535 {
536 p = getPoint(new LatLon(lat >= max ? max : lat, lon));
537 path.lineTo(p.x, p.y);
538 }
539 lat = max; max = b.getMax().lon();
540 for(; lon <= max; lon += 1.0)
541 {
542 p = getPoint(new LatLon(lat, lon >= max ? max : lon));
543 path.lineTo(p.x, p.y);
544 }
545 lon = max; max = b.getMin().lat();
546 for(; lat >= max; lat -= 1.0)
547 {
548 p = getPoint(new LatLon(lat <= max ? max : lat, lon));
549 path.lineTo(p.x, p.y);
550 }
551 lat = max; max = b.getMin().lon();
552 for(; lon >= max; lon -= 1.0)
553 {
554 p = getPoint(new LatLon(lat, lon <= max ? max : lon));
555 path.lineTo(p.x, p.y);
556 }
557
558 int w = getWidth();
559 int h = getHeight();
560
561 // Work around OpenJDK having problems when drawing out of bounds
562 final Area border = new Area(path);
563 // Make the viewport 1px larger in every direction to prevent an
564 // additional 1px border when zooming in
565 final Area viewport = new Area(new Rectangle(-1, -1, w + 2, h + 2));
566 border.intersect(viewport);
567 tempG.draw(border);
568
569 if (Main.map.filterDialog != null) {
570 Main.map.filterDialog.drawOSDText(tempG);
571 }
572
573 if (playHeadMarker != null) {
574 playHeadMarker.paint(tempG, this);
575 }
576
577 g.drawImage(offscreenBuffer, 0, 0, null);
578 super.paint(g);
579 }
580
581 /**
582 * Set the new dimension to the view.
583 */
584 public void recalculateCenterScale(BoundingXYVisitor box) {
585 if (box == null) {
586 box = new BoundingXYVisitor();
587 }
588 if (box.getBounds() == null) {
589 box.visit(getProjection().getWorldBoundsLatLon());
590 }
591 if (!box.hasExtend()) {
592 box.enlargeBoundingBox();
593 }
594
595 zoomTo(box.getBounds());
596 }
597
598 /**
599 * @return An unmodifiable collection of all layers
600 */
601 public Collection<Layer> getAllLayers() {
602 return Collections.unmodifiableCollection(layers);
603 }
604
605 /**
606 * @return An unmodifiable ordered list of all layers
607 */
608 public List<Layer> getAllLayersAsList() {
609 return Collections.unmodifiableList(layers);
610 }
611
612 /**
613 * Replies an unmodifiable list of layers of a certain type.
614 *
615 * Example:
616 * <pre>
617 * List<WMSLayer> wmsLayers = getLayersOfType(WMSLayer.class);
618 * </pre>
619 *
620 * @return an unmodifiable list of layers of a certain type.
621 */
622 public <T> List<T> getLayersOfType(Class<T> ofType) {
623 ArrayList<T> ret = new ArrayList<T>();
624 for (Layer layer : getAllLayersAsList()) {
625 if (ofType.isInstance(layer)) {
626 ret.add(ofType.cast(layer));
627 }
628 }
629 return ret;
630 }
631
632 /**
633 * Replies the number of layers managed by this mav view
634 *
635 * @return the number of layers managed by this mav view
636 */
637 public int getNumLayers() {
638 return layers.size();
639 }
640
641 /**
642 * Replies true if there is at least one layer in this map view
643 *
644 * @return true if there is at least one layer in this map view
645 */
646 public boolean hasLayers() {
647 return getNumLayers() > 0;
648 }
649
650 private void setEditLayer(List<Layer> layersList) {
651 OsmDataLayer newEditLayer = layersList.contains(editLayer)?editLayer:null;
652 OsmDataLayer oldEditLayer = editLayer;
653
654 // Find new edit layer
655 if (activeLayer != editLayer || !layersList.contains(editLayer)) {
656 if (activeLayer instanceof OsmDataLayer && layersList.contains(activeLayer)) {
657 newEditLayer = (OsmDataLayer) activeLayer;
658 } else {
659 for (Layer layer:layersList) {
660 if (layer instanceof OsmDataLayer) {
661 newEditLayer = (OsmDataLayer) layer;
662 break;
663 }
664 }
665 }
666 }
667
668 // Set new edit layer
669 if (newEditLayer != editLayer) {
670 if (newEditLayer == null) {
671 getCurrentDataSet().setSelected();
672 }
673
674 editLayer = newEditLayer;
675 fireEditLayerChanged(oldEditLayer, newEditLayer);
676 refreshTitle();
677 }
678
679 }
680
681 /**
682 * Sets the active layer to <code>layer</code>. If <code>layer</code> is an instance
683 * of {@see OsmDataLayer} also sets {@see #editLayer} to <code>layer</code>.
684 *
685 * @param layer the layer to be activate; must be one of the layers in the list of layers
686 * @exception IllegalArgumentException thrown if layer is not in the lis of layers
687 */
688 public void setActiveLayer(Layer layer) {
689 setActiveLayer(layer, true);
690 }
691
692 private void setActiveLayer(Layer layer, boolean setEditLayer) {
693 if (layer != null && !layers.contains(layer))
694 throw new IllegalArgumentException(tr("Layer ''{0}'' must be in list of layers", layer.toString()));
695
696 if (layer == activeLayer)
697 return;
698
699 Layer old = activeLayer;
700 activeLayer = layer;
701 if (setEditLayer) {
702 setEditLayer(layers);
703 }
704 fireActiveLayerChanged(old, layer);
705
706 /* This only makes the buttons look disabled. Disabling the actions as well requires
707 * the user to re-select the tool after i.e. moving a layer. While testing I found
708 * that I switch layers and actions at the same time and it was annoying to mind the
709 * order. This way it works as visual clue for new users */
710 for (Enumeration<AbstractButton> e = Main.map.toolGroup.getElements() ; e.hasMoreElements() ;) {
711 AbstractButton x=e.nextElement();
712 x.setEnabled(((MapMode)x.getAction()).layerIsSupported(layer));
713 }
714 AudioPlayer.reset();
715 repaint();
716 }
717
718 /**
719 * Replies the currently active layer
720 *
721 * @return the currently active layer (may be null)
722 */
723 public Layer getActiveLayer() {
724 return activeLayer;
725 }
726
727 /**
728 * Replies the current edit layer, if any
729 *
730 * @return the current edit layer. May be null.
731 */
732 public OsmDataLayer getEditLayer() {
733 return editLayer;
734 }
735
736 /**
737 * replies true if the list of layers managed by this map view contain layer
738 *
739 * @param layer the layer
740 * @return true if the list of layers managed by this map view contain layer
741 */
742 public boolean hasLayer(Layer layer) {
743 return layers.contains(layer);
744 }
745
746 /**
747 * Tries to zoom to the download boundingbox[es] of the current edit layer
748 * (aka {@link OsmDataLayer}). If the edit layer has multiple download bounding
749 * boxes it zooms to a large virtual bounding box containing all smaller ones.
750 *
751 * @return <code>true</code> if a zoom operation has been performed
752 */
753 public boolean zoomToDataSetBoundingBox(DataSet ds) {
754 // In case we already have an existing data layer ...
755 OsmDataLayer layer= getEditLayer();
756 if (layer == null)
757 return false;
758 Collection<DataSource> dataSources = ds.dataSources;
759 // ... with bounding box[es] of data loaded from OSM or a file...
760 BoundingXYVisitor bbox = new BoundingXYVisitor();
761 for (DataSource source : dataSources) {
762 bbox.visit(source.bounds);
763 }
764 if (bbox.hasExtend()) {
765 // ... we zoom to it's bounding box
766 recalculateCenterScale(bbox);
767 return true;
768 }
769 return false;
770 }
771
772 public boolean addTemporaryLayer(MapViewPaintable mvp) {
773 if (temporaryLayers.contains(mvp)) return false;
774 return temporaryLayers.add(mvp);
775 }
776
777 public boolean removeTemporaryLayer(MapViewPaintable mvp) {
778 return temporaryLayers.remove(mvp);
779 }
780
781 public void propertyChange(PropertyChangeEvent evt) {
782 if (evt.getPropertyName().equals(Layer.VISIBLE_PROP)) {
783 repaint();
784 } else if (evt.getPropertyName().equals(OsmDataLayer.REQUIRES_SAVE_TO_DISK_PROP)
785 || evt.getPropertyName().equals(OsmDataLayer.REQUIRES_UPLOAD_TO_SERVER_PROP)) {
786 OsmDataLayer layer = (OsmDataLayer)evt.getSource();
787 if (layer == getEditLayer()) {
788 refreshTitle();
789 }
790 }
791 }
792
793 protected void refreshTitle() {
794 boolean dirty = editLayer != null && (editLayer.requiresSaveToFile() || editLayer.requiresUploadToServer());
795 if (dirty) {
796 JOptionPane.getFrameForComponent(Main.parent).setTitle("* " + tr("Java OpenStreetMap Editor"));
797 } else {
798 JOptionPane.getFrameForComponent(Main.parent).setTitle(tr("Java OpenStreetMap Editor"));
799 }
800 }
801
802 public void preferenceChanged(PreferenceChangeEvent e) {
803 paintPreferencesChanged = true;
804 }
805
806}
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