source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 5460

Last change on this file since 5460 was 5460, checked in by Don-vip, 12 years ago

global use of Main.isDisplayingMapView()
  • Property svn:eol-style set to native
File size: 29.7 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.ActionMap;
32import javax.swing.InputMap;
33import javax.swing.JOptionPane;
34import javax.swing.JPanel;
35
36import org.openstreetmap.josm.Main;
37import org.openstreetmap.josm.actions.AutoScaleAction;
38import org.openstreetmap.josm.actions.mapmode.MapMode;
39import org.openstreetmap.josm.data.Bounds;
40import org.openstreetmap.josm.data.Preferences.PreferenceChangeEvent;
41import org.openstreetmap.josm.data.Preferences.PreferenceChangedListener;
42import org.openstreetmap.josm.data.SelectionChangedListener;
43import org.openstreetmap.josm.data.coor.LatLon;
44import org.openstreetmap.josm.data.osm.DataSet;
45import org.openstreetmap.josm.data.osm.DataSource;
46import org.openstreetmap.josm.data.osm.OsmPrimitive;
47import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
48import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors;
49import org.openstreetmap.josm.data.osm.visitor.paint.relations.MultipolygonCache;
50import org.openstreetmap.josm.gui.layer.GpxLayer;
51import org.openstreetmap.josm.gui.layer.Layer;
52import org.openstreetmap.josm.gui.layer.MapViewPaintable;
53import org.openstreetmap.josm.gui.layer.OsmDataLayer;
54import org.openstreetmap.josm.gui.layer.markerlayer.MarkerLayer;
55import org.openstreetmap.josm.gui.layer.markerlayer.PlayHeadMarker;
56import org.openstreetmap.josm.tools.AudioPlayer;
57import org.openstreetmap.josm.tools.BugReportExceptionHandler;
58
59/**
60 * This is a component used in the {@link MapFrame} for browsing the map. It use is to
61 * provide the MapMode's enough capabilities to operate.<br/><br/>
62 *
63 * {@code MapView} holds meta-data about the data set currently displayed, as scale level,
64 * center point viewed, what scrolling mode or editing mode is selected or with
65 * what projection the map is viewed etc..<br/><br/>
66 *
67 * {@code MapView} is able to administrate several layers.
68 *
69 * @author imi
70 */
71public class MapView extends NavigatableComponent implements PropertyChangeListener, PreferenceChangedListener {
72
73 /**
74 * Interface to notify listeners of a layer change.
75 * @author imi
76 */
77 public interface LayerChangeListener {
78
79 /**
80 * Notifies this listener that the active layer has changed.
81 * @param oldLayer The previous active layer
82 * @param newLayer The new activer layer
83 */
84 void activeLayerChange(Layer oldLayer, Layer newLayer);
85
86 /**
87 * Notifies this listener that a layer has been added.
88 * @param newLayer The new added layer
89 */
90 void layerAdded(Layer newLayer);
91
92 /**
93 * Notifies this listener that a layer has been removed.
94 * @param oldLayer The old removed layer
95 */
96 void layerRemoved(Layer oldLayer);
97 }
98
99 public interface EditLayerChangeListener {
100 void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer);
101 }
102
103 public boolean viewportFollowing = false;
104
105 /**
106 * the layer listeners
107 */
108 private static final CopyOnWriteArrayList<LayerChangeListener> layerChangeListeners = new CopyOnWriteArrayList<LayerChangeListener>();
109 private static final CopyOnWriteArrayList<EditLayerChangeListener> editLayerChangeListeners = new CopyOnWriteArrayList<EditLayerChangeListener>();
110
111 /**
112 * Removes a layer change listener
113 *
114 * @param listener the listener. Ignored if null or already registered.
115 */
116 public static void removeLayerChangeListener(LayerChangeListener listener) {
117 layerChangeListeners.remove(listener);
118 }
119
120 public static void removeEditLayerChangeListener(EditLayerChangeListener listener) {
121 editLayerChangeListeners.remove(listener);
122 }
123
124 /**
125 * Adds a layer change listener
126 *
127 * @param listener the listener. Ignored if null or already registered.
128 */
129 public static void addLayerChangeListener(LayerChangeListener listener) {
130 if (listener != null) {
131 layerChangeListeners.addIfAbsent(listener);
132 }
133 }
134
135 /**
136 * Adds an edit layer change listener
137 *
138 * @param listener the listener. Ignored if null or already registered.
139 * @param initialFire Fire an edit-layer-changed-event right after adding
140 * the listener in case there is an edit layer present
141 */
142 public static void addEditLayerChangeListener(EditLayerChangeListener listener, boolean initialFire) {
143 addEditLayerChangeListener(listener);
144 if (initialFire) {
145 if (Main.isDisplayingMapView() && Main.map.mapView.getEditLayer() != null) {
146 fireEditLayerChanged(null, Main.map.mapView.getEditLayer());
147 }
148 }
149 }
150
151 /**
152 * Adds an edit layer change listener
153 *
154 * @param listener the listener. Ignored if null or already registered.
155 */
156 public static void addEditLayerChangeListener(EditLayerChangeListener listener) {
157 if (listener != null) {
158 editLayerChangeListeners.addIfAbsent(listener);
159 }
160 }
161
162 protected static void fireActiveLayerChanged(Layer oldLayer, Layer newLayer) {
163 for (LayerChangeListener l : layerChangeListeners) {
164 l.activeLayerChange(oldLayer, newLayer);
165 }
166 }
167
168 protected static void fireLayerAdded(Layer newLayer) {
169 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
170 l.layerAdded(newLayer);
171 }
172 }
173
174 protected static void fireLayerRemoved(Layer layer) {
175 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
176 l.layerRemoved(layer);
177 }
178 }
179
180 protected static void fireEditLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
181 for (EditLayerChangeListener l : editLayerChangeListeners) {
182 l.editLayerChanged(oldLayer, newLayer);
183 }
184 }
185
186 /**
187 * A list of all layers currently loaded.
188 */
189 private final List<Layer> layers = new ArrayList<Layer>();
190 /**
191 * The play head marker: there is only one of these so it isn't in any specific layer
192 */
193 public PlayHeadMarker playHeadMarker = null;
194
195 /**
196 * The layer from the layers list that is currently active.
197 */
198 private Layer activeLayer;
199
200 private OsmDataLayer editLayer;
201
202 /**
203 * The last event performed by mouse.
204 */
205 public MouseEvent lastMEvent = new MouseEvent(this, 0, 0, 0, 0, 0, 0, false); // In case somebody reads it before first mouse move
206
207 private LinkedList<MapViewPaintable> temporaryLayers = new LinkedList<MapViewPaintable>();
208
209 private BufferedImage nonChangedLayersBuffer;
210 private BufferedImage offscreenBuffer;
211 // Layers that wasn't changed since last paint
212 private final List<Layer> nonChangedLayers = new ArrayList<Layer>();
213 private Layer changedLayer;
214 private int lastViewID;
215 private boolean paintPreferencesChanged = true;
216 private Rectangle lastClipBounds = new Rectangle();
217
218 /**
219 * Constructs a new {@code MapView}.
220 * @param contentPane The content pane used to register shortcuts in its {@link InputMap} and {@link ActionMap}
221 */
222 public MapView(final JPanel contentPane) {
223 Main.pref.addPreferenceChangeListener(this);
224
225 addComponentListener(new ComponentAdapter(){
226 @Override public void componentResized(ComponentEvent e) {
227 removeComponentListener(this);
228
229 MapSlider zoomSlider = new MapSlider(MapView.this);
230 add(zoomSlider);
231 zoomSlider.setBounds(3, 0, 114, 30);
232
233 MapScaler scaler = new MapScaler(MapView.this);
234 add(scaler);
235 scaler.setLocation(10,30);
236
237 new MapMover(MapView.this, contentPane);
238 OsmDataLayer layer = getEditLayer();
239 if (layer != null) {
240 if (!zoomToDataSetBoundingBox(layer.data)) {
241 // no bounding box defined
242 AutoScaleAction.autoScale("data");
243 }
244 } else {
245 AutoScaleAction.autoScale("layer");
246 }
247 }
248 });
249
250 // listend to selection changes to redraw the map
251 DataSet.addSelectionListener(repaintSelectionChangedListener);
252
253 //store the last mouse action
254 this.addMouseMotionListener(new MouseMotionListener() {
255 public void mouseDragged(MouseEvent e) {
256 mouseMoved(e);
257 }
258 public void mouseMoved(MouseEvent e) {
259 lastMEvent = e;
260 }
261 });
262 }
263
264 /**
265 * Adds a GPX layer. A GPX layer is added below the lowest data layer.
266 *
267 * @param layer the GPX layer
268 */
269 protected void addGpxLayer(GpxLayer layer) {
270 if (layers.isEmpty()) {
271 layers.add(layer);
272 return;
273 }
274 for (int i=layers.size()-1; i>= 0; i--) {
275 if (layers.get(i) instanceof OsmDataLayer) {
276 if (i == layers.size()-1) {
277 layers.add(layer);
278 } else {
279 layers.add(i+1, layer);
280 }
281 return;
282 }
283 }
284 layers.add(0, layer);
285 }
286
287 /**
288 * Add a layer to the current MapView. The layer will be added at topmost
289 * position.
290 * @param layer The layer to add
291 */
292 public void addLayer(Layer layer) {
293 if (layer instanceof MarkerLayer && playHeadMarker == null) {
294 playHeadMarker = PlayHeadMarker.create();
295 }
296
297 if (layer instanceof GpxLayer) {
298 addGpxLayer((GpxLayer)layer);
299 } else if (layers.isEmpty()) {
300 layers.add(layer);
301 } else if (layer.isBackgroundLayer()) {
302 int i = 0;
303 for (; i < layers.size(); i++) {
304 if (layers.get(i).isBackgroundLayer()) {
305 break;
306 }
307 }
308 layers.add(i, layer);
309 } else {
310 layers.add(0, layer);
311 }
312 fireLayerAdded(layer);
313 boolean callSetActiveLayer = layer instanceof OsmDataLayer || activeLayer == null;
314 if (callSetActiveLayer) {
315 // autoselect the new layer
316 setActiveLayer(layer); // also repaints this MapView
317 }
318 layer.addPropertyChangeListener(this);
319 Main.addProjectionChangeListener(layer);
320 AudioPlayer.reset();
321 if (!callSetActiveLayer) {
322 repaint();
323 }
324 }
325
326 @Override
327 protected DataSet getCurrentDataSet() {
328 if (editLayer != null)
329 return editLayer.data;
330 else
331 return null;
332 }
333
334 /**
335 * Replies true if the active layer is drawable.
336 *
337 * @return true if the active layer is drawable, false otherwise
338 */
339 public boolean isActiveLayerDrawable() {
340 return editLayer != null;
341 }
342
343 /**
344 * Replies true if the active layer is visible.
345 *
346 * @return true if the active layer is visible, false otherwise
347 */
348 public boolean isActiveLayerVisible() {
349 return isActiveLayerDrawable() && editLayer.isVisible();
350 }
351
352 /**
353 * Determines the next active data layer according to the following
354 * rules:
355 * <ul>
356 * <li>if there is at least one {@link OsmDataLayer} the first one
357 * becomes active</li>
358 * <li>otherwise, the top most layer of any type becomes active</li>
359 * </ul>
360 *
361 * @return the next active data layer
362 */
363 protected Layer determineNextActiveLayer(List<Layer> layersList) {
364 // First look for data layer
365 for (Layer layer:layersList) {
366 if (layer instanceof OsmDataLayer)
367 return layer;
368 }
369
370 // Then any layer
371 if (!layersList.isEmpty())
372 return layersList.get(0);
373
374 // and then give up
375 return null;
376
377 }
378
379 /**
380 * Remove the layer from the mapview. If the layer was in the list before,
381 * an LayerChange event is fired.
382 * @param layer The layer to remove
383 */
384 public void removeLayer(Layer layer) {
385 List<Layer> layersList = new ArrayList<Layer>(layers);
386
387 if (!layersList.remove(layer))
388 return;
389
390 setEditLayer(layersList);
391
392 if (layer == activeLayer) {
393 setActiveLayer(determineNextActiveLayer(layersList), false);
394 }
395
396 layers.remove(layer);
397 Main.removeProjectionChangeListener(layer);
398 fireLayerRemoved(layer);
399 layer.removePropertyChangeListener(this);
400 layer.destroy();
401 AudioPlayer.reset();
402 repaint();
403 }
404
405 private boolean virtualNodesEnabled = false;
406
407 public void setVirtualNodesEnabled(boolean enabled) {
408 if(virtualNodesEnabled != enabled) {
409 virtualNodesEnabled = enabled;
410 repaint();
411 }
412 }
413 public boolean isVirtualNodesEnabled() {
414 return virtualNodesEnabled;
415 }
416
417 /**
418 * Moves the layer to the given new position. No event is fired, but repaints
419 * according to the new Z-Order of the layers.
420 *
421 * @param layer The layer to move
422 * @param pos The new position of the layer
423 */
424 public void moveLayer(Layer layer, int pos) {
425 int curLayerPos = layers.indexOf(layer);
426 if (curLayerPos == -1)
427 throw new IllegalArgumentException(tr("Layer not in list."));
428 if (pos == curLayerPos)
429 return; // already in place.
430 layers.remove(curLayerPos);
431 if (pos >= layers.size()) {
432 layers.add(layer);
433 } else {
434 layers.add(pos, layer);
435 }
436 setEditLayer(layers);
437 AudioPlayer.reset();
438 repaint();
439 }
440
441 public int getLayerPos(Layer layer) {
442 int curLayerPos = layers.indexOf(layer);
443 if (curLayerPos == -1)
444 throw new IllegalArgumentException(tr("Layer not in list."));
445 return curLayerPos;
446 }
447
448 /**
449 * Creates a list of the visible layers in Z-Order, the layer with the lowest Z-Order
450 * first, layer with the highest Z-Order last.
451 *
452 * @return a list of the visible in Z-Order, the layer with the lowest Z-Order
453 * first, layer with the highest Z-Order last.
454 */
455 protected List<Layer> getVisibleLayersInZOrder() {
456 ArrayList<Layer> ret = new ArrayList<Layer>();
457 for (Layer l: layers) {
458 if (l.isVisible()) {
459 ret.add(l);
460 }
461 }
462 // sort according to position in the list of layers, with one exception:
463 // an active data layer always becomes a higher Z-Order than all other
464 // data layers
465 //
466 Collections.sort(
467 ret,
468 new Comparator<Layer>() {
469 public int compare(Layer l1, Layer l2) {
470 if (l1 instanceof OsmDataLayer && l2 instanceof OsmDataLayer) {
471 if (l1 == getActiveLayer()) return -1;
472 if (l2 == getActiveLayer()) return 1;
473 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
474 } else
475 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
476 }
477 }
478 );
479 Collections.reverse(ret);
480 return ret;
481 }
482
483 private void paintLayer(Layer layer, Graphics2D g, Bounds box) {
484 if (layer.getOpacity() < 1) {
485 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,(float)layer.getOpacity()));
486 }
487 layer.paint(g, this, box);
488 g.setPaintMode();
489 }
490
491 /**
492 * Draw the component.
493 */
494 @Override public void paint(Graphics g) {
495 if (BugReportExceptionHandler.exceptionHandlingInProgress())
496 return;
497
498 if (center == null)
499 return; // no data loaded yet.
500
501 List<Layer> visibleLayers = getVisibleLayersInZOrder();
502
503 int nonChangedLayersCount = 0;
504 for (Layer l: visibleLayers) {
505 if (l.isChanged() || l == changedLayer) {
506 break;
507 } else {
508 nonChangedLayersCount++;
509 }
510 }
511
512 boolean canUseBuffer;
513
514 synchronized (this) {
515 canUseBuffer = !paintPreferencesChanged;
516 paintPreferencesChanged = false;
517 }
518 canUseBuffer = canUseBuffer && nonChangedLayers.size() <= nonChangedLayersCount &&
519 lastViewID == getViewID() && lastClipBounds.contains(g.getClipBounds());
520 if (canUseBuffer) {
521 for (int i=0; i<nonChangedLayers.size(); i++) {
522 if (visibleLayers.get(i) != nonChangedLayers.get(i)) {
523 canUseBuffer = false;
524 break;
525 }
526 }
527 }
528
529 if (null == offscreenBuffer || offscreenBuffer.getWidth() != getWidth() || offscreenBuffer.getHeight() != getHeight()) {
530 offscreenBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
531 }
532
533 Graphics2D tempG = offscreenBuffer.createGraphics();
534 tempG.setClip(g.getClip());
535 Bounds box = getLatLonBounds(g.getClipBounds());
536
537 if (!canUseBuffer || nonChangedLayersBuffer == null) {
538 if (null == nonChangedLayersBuffer || nonChangedLayersBuffer.getWidth() != getWidth() || nonChangedLayersBuffer.getHeight() != getHeight()) {
539 nonChangedLayersBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
540 }
541 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
542 g2.setClip(g.getClip());
543 g2.setColor(PaintColors.getBackgroundColor());
544 g2.fillRect(0, 0, getWidth(), getHeight());
545
546 for (int i=0; i<nonChangedLayersCount; i++) {
547 paintLayer(visibleLayers.get(i),g2, box);
548 }
549 } else {
550 // Maybe there were more unchanged layers then last time - draw them to buffer
551 if (nonChangedLayers.size() != nonChangedLayersCount) {
552 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
553 g2.setClip(g.getClip());
554 for (int i=nonChangedLayers.size(); i<nonChangedLayersCount; i++) {
555 paintLayer(visibleLayers.get(i),g2, box);
556 }
557 }
558 }
559
560 nonChangedLayers.clear();
561 changedLayer = null;
562 for (int i=0; i<nonChangedLayersCount; i++) {
563 nonChangedLayers.add(visibleLayers.get(i));
564 }
565 lastViewID = getViewID();
566 lastClipBounds = g.getClipBounds();
567
568 tempG.drawImage(nonChangedLayersBuffer, 0, 0, null);
569
570 for (int i=nonChangedLayersCount; i<visibleLayers.size(); i++) {
571 paintLayer(visibleLayers.get(i),tempG, box);
572 }
573
574 for (MapViewPaintable mvp : temporaryLayers) {
575 mvp.paint(tempG, this, box);
576 }
577
578 // draw world borders
579 tempG.setColor(Color.WHITE);
580 Bounds b = getProjection().getWorldBoundsLatLon();
581 double lat = b.getMin().lat();
582 double lon = b.getMin().lon();
583
584 Point p = getPoint(b.getMin());
585
586 GeneralPath path = new GeneralPath();
587
588 path.moveTo(p.x, p.y);
589 double max = b.getMax().lat();
590 for(; lat <= max; lat += 1.0)
591 {
592 p = getPoint(new LatLon(lat >= max ? max : lat, lon));
593 path.lineTo(p.x, p.y);
594 }
595 lat = max; max = b.getMax().lon();
596 for(; lon <= max; lon += 1.0)
597 {
598 p = getPoint(new LatLon(lat, lon >= max ? max : lon));
599 path.lineTo(p.x, p.y);
600 }
601 lon = max; max = b.getMin().lat();
602 for(; lat >= max; lat -= 1.0)
603 {
604 p = getPoint(new LatLon(lat <= max ? max : lat, lon));
605 path.lineTo(p.x, p.y);
606 }
607 lat = max; max = b.getMin().lon();
608 for(; lon >= max; lon -= 1.0)
609 {
610 p = getPoint(new LatLon(lat, lon <= max ? max : lon));
611 path.lineTo(p.x, p.y);
612 }
613
614 int w = getWidth();
615 int h = getHeight();
616
617 // Work around OpenJDK having problems when drawing out of bounds
618 final Area border = new Area(path);
619 // Make the viewport 1px larger in every direction to prevent an
620 // additional 1px border when zooming in
621 final Area viewport = new Area(new Rectangle(-1, -1, w + 2, h + 2));
622 border.intersect(viewport);
623 tempG.draw(border);
624
625 if (Main.isDisplayingMapView() && Main.map.filterDialog != null) {
626 Main.map.filterDialog.drawOSDText(tempG);
627 }
628
629 if (playHeadMarker != null) {
630 playHeadMarker.paint(tempG, this);
631 }
632
633 g.drawImage(offscreenBuffer, 0, 0, null);
634 super.paint(g);
635 }
636
637 /**
638 * Set the new dimension to the view.
639 */
640 public void recalculateCenterScale(BoundingXYVisitor box) {
641 if (box == null) {
642 box = new BoundingXYVisitor();
643 }
644 if (box.getBounds() == null) {
645 box.visit(getProjection().getWorldBoundsLatLon());
646 }
647 if (!box.hasExtend()) {
648 box.enlargeBoundingBox();
649 }
650
651 zoomTo(box.getBounds());
652 }
653
654 /**
655 * @return An unmodifiable collection of all layers
656 */
657 public Collection<Layer> getAllLayers() {
658 return Collections.unmodifiableCollection(layers);
659 }
660
661 /**
662 * @return An unmodifiable ordered list of all layers
663 */
664 public List<Layer> getAllLayersAsList() {
665 return Collections.unmodifiableList(layers);
666 }
667
668 /**
669 * Replies an unmodifiable list of layers of a certain type.
670 *
671 * Example:
672 * <pre>
673 * List<WMSLayer> wmsLayers = getLayersOfType(WMSLayer.class);
674 * </pre>
675 *
676 * @return an unmodifiable list of layers of a certain type.
677 */
678 public <T> List<T> getLayersOfType(Class<T> ofType) {
679 ArrayList<T> ret = new ArrayList<T>();
680 for (Layer layer : getAllLayersAsList()) {
681 if (ofType.isInstance(layer)) {
682 ret.add(ofType.cast(layer));
683 }
684 }
685 return ret;
686 }
687
688 /**
689 * Replies the number of layers managed by this mav view
690 *
691 * @return the number of layers managed by this mav view
692 */
693 public int getNumLayers() {
694 return layers.size();
695 }
696
697 /**
698 * Replies true if there is at least one layer in this map view
699 *
700 * @return true if there is at least one layer in this map view
701 */
702 public boolean hasLayers() {
703 return getNumLayers() > 0;
704 }
705
706 private void setEditLayer(List<Layer> layersList) {
707 OsmDataLayer newEditLayer = layersList.contains(editLayer)?editLayer:null;
708 OsmDataLayer oldEditLayer = editLayer;
709
710 // Find new edit layer
711 if (activeLayer != editLayer || !layersList.contains(editLayer)) {
712 if (activeLayer instanceof OsmDataLayer && layersList.contains(activeLayer)) {
713 newEditLayer = (OsmDataLayer) activeLayer;
714 } else {
715 for (Layer layer:layersList) {
716 if (layer instanceof OsmDataLayer) {
717 newEditLayer = (OsmDataLayer) layer;
718 break;
719 }
720 }
721 }
722 }
723
724 // Set new edit layer
725 if (newEditLayer != editLayer) {
726 if (newEditLayer == null) {
727 getCurrentDataSet().setSelected();
728 }
729
730 editLayer = newEditLayer;
731 fireEditLayerChanged(oldEditLayer, newEditLayer);
732 refreshTitle();
733 }
734
735 }
736
737 /**
738 * Sets the active layer to <code>layer</code>. If <code>layer</code> is an instance
739 * of {@link OsmDataLayer} also sets {@link #editLayer} to <code>layer</code>.
740 *
741 * @param layer the layer to be activate; must be one of the layers in the list of layers
742 * @exception IllegalArgumentException thrown if layer is not in the lis of layers
743 */
744 public void setActiveLayer(Layer layer) {
745 setActiveLayer(layer, true);
746 }
747
748 private void setActiveLayer(Layer layer, boolean setEditLayer) {
749 if (layer != null && !layers.contains(layer))
750 throw new IllegalArgumentException(tr("Layer ''{0}'' must be in list of layers", layer.toString()));
751
752 if (layer == activeLayer)
753 return;
754
755 Layer old = activeLayer;
756 activeLayer = layer;
757 if (setEditLayer) {
758 setEditLayer(layers);
759 }
760 fireActiveLayerChanged(old, layer);
761
762 /* This only makes the buttons look disabled. Disabling the actions as well requires
763 * the user to re-select the tool after i.e. moving a layer. While testing I found
764 * that I switch layers and actions at the same time and it was annoying to mind the
765 * order. This way it works as visual clue for new users */
766 for (Enumeration<AbstractButton> e = Main.map.toolGroup.getElements() ; e.hasMoreElements() ;) {
767 AbstractButton button = e.nextElement();
768 MapMode mode = (MapMode)button.getAction();
769 boolean isLayerSupported = mode.layerIsSupported(layer);
770 button.setEnabled(isLayerSupported);
771 // Also update associated shortcut (fix #6876)
772 if (isLayerSupported) {
773 Main.registerActionShortcut(mode, mode.getShortcut());
774 } else {
775 Main.unregisterShortcut(mode.getShortcut());
776 }
777 }
778 AudioPlayer.reset();
779 repaint();
780 }
781
782 /**
783 * Replies the currently active layer
784 *
785 * @return the currently active layer (may be null)
786 */
787 public Layer getActiveLayer() {
788 return activeLayer;
789 }
790
791 /**
792 * Replies the current edit layer, if any
793 *
794 * @return the current edit layer. May be null.
795 */
796 public OsmDataLayer getEditLayer() {
797 return editLayer;
798 }
799
800 /**
801 * replies true if the list of layers managed by this map view contain layer
802 *
803 * @param layer the layer
804 * @return true if the list of layers managed by this map view contain layer
805 */
806 public boolean hasLayer(Layer layer) {
807 return layers.contains(layer);
808 }
809
810 /**
811 * Tries to zoom to the download boundingbox[es] of the current edit layer
812 * (aka {@link OsmDataLayer}). If the edit layer has multiple download bounding
813 * boxes it zooms to a large virtual bounding box containing all smaller ones.
814 *
815 * @return <code>true</code> if a zoom operation has been performed
816 */
817 public boolean zoomToDataSetBoundingBox(DataSet ds) {
818 // In case we already have an existing data layer ...
819 OsmDataLayer layer= getEditLayer();
820 if (layer == null)
821 return false;
822 Collection<DataSource> dataSources = ds.dataSources;
823 // ... with bounding box[es] of data loaded from OSM or a file...
824 BoundingXYVisitor bbox = new BoundingXYVisitor();
825 for (DataSource source : dataSources) {
826 bbox.visit(source.bounds);
827 }
828 if (bbox.hasExtend()) {
829 // ... we zoom to it's bounding box
830 recalculateCenterScale(bbox);
831 return true;
832 }
833 return false;
834 }
835
836 public boolean addTemporaryLayer(MapViewPaintable mvp) {
837 if (temporaryLayers.contains(mvp)) return false;
838 return temporaryLayers.add(mvp);
839 }
840
841 public boolean removeTemporaryLayer(MapViewPaintable mvp) {
842 return temporaryLayers.remove(mvp);
843 }
844
845 public void propertyChange(PropertyChangeEvent evt) {
846 if (evt.getPropertyName().equals(Layer.VISIBLE_PROP)) {
847 repaint();
848 } else if (evt.getPropertyName().equals(Layer.OPACITY_PROP)) {
849 Layer l = (Layer)evt.getSource();
850 if (l.isVisible()) {
851 changedLayer = l;
852 repaint();
853 }
854 } else if (evt.getPropertyName().equals(OsmDataLayer.REQUIRES_SAVE_TO_DISK_PROP)
855 || evt.getPropertyName().equals(OsmDataLayer.REQUIRES_UPLOAD_TO_SERVER_PROP)) {
856 OsmDataLayer layer = (OsmDataLayer)evt.getSource();
857 if (layer == getEditLayer()) {
858 refreshTitle();
859 }
860 }
861 }
862
863 protected void refreshTitle() {
864 boolean dirty = editLayer != null && (editLayer.requiresSaveToFile() || editLayer.requiresUploadToServer());
865 if (dirty) {
866 JOptionPane.getFrameForComponent(Main.parent).setTitle("* " + tr("Java OpenStreetMap Editor"));
867 } else {
868 JOptionPane.getFrameForComponent(Main.parent).setTitle(tr("Java OpenStreetMap Editor"));
869 }
870 }
871
872 @Override
873 public void preferenceChanged(PreferenceChangeEvent e) {
874 synchronized (this) {
875 paintPreferencesChanged = true;
876 }
877 }
878
879 private SelectionChangedListener repaintSelectionChangedListener = new SelectionChangedListener(){
880 public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
881 repaint();
882 }
883 };
884
885 public void destroy() {
886 Main.pref.removePreferenceChangeListener(this);
887 DataSet.removeSelectionListener(repaintSelectionChangedListener);
888 MultipolygonCache.getInstance().clear(this);
889 }
890
891}
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