source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 5979

Last change on this file since 5979 was 5979, checked in by akks, 11 years ago

fix #8652 [based on patch by cmuelle8] enable dialog and panels hiding by TAB
disable TAB for angle snapping by default (please use A-A or assign different key)
  • Property svn:eol-style set to native
File size: 30.7 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.KeyEvent;
15import java.awt.event.MouseEvent;
16import java.awt.event.MouseMotionListener;
17import java.awt.geom.Area;
18import java.awt.geom.GeneralPath;
19import java.awt.image.BufferedImage;
20import java.beans.PropertyChangeEvent;
21import java.beans.PropertyChangeListener;
22import java.util.ArrayList;
23import java.util.Collection;
24import java.util.Collections;
25import java.util.Comparator;
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;
58import org.openstreetmap.josm.tools.Shortcut;
59
60/**
61 * This is a component used in the {@link MapFrame} for browsing the map. It use is to
62 * provide the MapMode's enough capabilities to operate.<br/><br/>
63 *
64 * {@code MapView} holds meta-data about the data set currently displayed, as scale level,
65 * center point viewed, what scrolling mode or editing mode is selected or with
66 * what projection the map is viewed etc..<br/><br/>
67 *
68 * {@code MapView} is able to administrate several layers.
69 *
70 * @author imi
71 */
72public class MapView extends NavigatableComponent implements PropertyChangeListener, PreferenceChangedListener, OsmDataLayer.LayerStateChangeListener {
73
74 /**
75 * Interface to notify listeners of a layer change.
76 * @author imi
77 */
78 public interface LayerChangeListener {
79
80 /**
81 * Notifies this listener that the active layer has changed.
82 * @param oldLayer The previous active layer
83 * @param newLayer The new activer layer
84 */
85 void activeLayerChange(Layer oldLayer, Layer newLayer);
86
87 /**
88 * Notifies this listener that a layer has been added.
89 * @param newLayer The new added layer
90 */
91 void layerAdded(Layer newLayer);
92
93 /**
94 * Notifies this listener that a layer has been removed.
95 * @param oldLayer The old removed layer
96 */
97 void layerRemoved(Layer oldLayer);
98 }
99
100 public interface EditLayerChangeListener {
101 void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer);
102 }
103
104 public boolean viewportFollowing = false;
105
106 /**
107 * the layer listeners
108 */
109 private static final CopyOnWriteArrayList<LayerChangeListener> layerChangeListeners = new CopyOnWriteArrayList<LayerChangeListener>();
110 private static final CopyOnWriteArrayList<EditLayerChangeListener> editLayerChangeListeners = new CopyOnWriteArrayList<EditLayerChangeListener>();
111
112 /**
113 * Removes a layer change listener
114 *
115 * @param listener the listener. Ignored if null or already registered.
116 */
117 public static void removeLayerChangeListener(LayerChangeListener listener) {
118 layerChangeListeners.remove(listener);
119 }
120
121 public static void removeEditLayerChangeListener(EditLayerChangeListener listener) {
122 editLayerChangeListeners.remove(listener);
123 }
124
125 /**
126 * Adds a layer change listener
127 *
128 * @param listener the listener. Ignored if null or already registered.
129 */
130 public static void addLayerChangeListener(LayerChangeListener listener) {
131 if (listener != null) {
132 layerChangeListeners.addIfAbsent(listener);
133 }
134 }
135
136 /**
137 * Adds an edit layer change listener
138 *
139 * @param listener the listener. Ignored if null or already registered.
140 * @param initialFire Fire an edit-layer-changed-event right after adding
141 * the listener in case there is an edit layer present
142 */
143 public static void addEditLayerChangeListener(EditLayerChangeListener listener, boolean initialFire) {
144 addEditLayerChangeListener(listener);
145 if (initialFire) {
146 if (Main.isDisplayingMapView() && Main.map.mapView.getEditLayer() != null) {
147 fireEditLayerChanged(null, Main.map.mapView.getEditLayer());
148 }
149 }
150 }
151
152 /**
153 * Adds an edit layer change listener
154 *
155 * @param listener the listener. Ignored if null or already registered.
156 */
157 public static void addEditLayerChangeListener(EditLayerChangeListener listener) {
158 if (listener != null) {
159 editLayerChangeListeners.addIfAbsent(listener);
160 }
161 }
162
163 protected static void fireActiveLayerChanged(Layer oldLayer, Layer newLayer) {
164 for (LayerChangeListener l : layerChangeListeners) {
165 l.activeLayerChange(oldLayer, newLayer);
166 }
167 }
168
169 protected static void fireLayerAdded(Layer newLayer) {
170 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
171 l.layerAdded(newLayer);
172 }
173 }
174
175 protected static void fireLayerRemoved(Layer layer) {
176 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
177 l.layerRemoved(layer);
178 }
179 }
180
181 protected static void fireEditLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
182 for (EditLayerChangeListener l : editLayerChangeListeners) {
183 l.editLayerChanged(oldLayer, newLayer);
184 }
185 }
186
187 /**
188 * A list of all layers currently loaded.
189 */
190 private final List<Layer> layers = new ArrayList<Layer>();
191 /**
192 * The play head marker: there is only one of these so it isn't in any specific layer
193 */
194 public PlayHeadMarker playHeadMarker = null;
195
196 /**
197 * The layer from the layers list that is currently active.
198 */
199 private Layer activeLayer;
200
201 private OsmDataLayer editLayer;
202
203 /**
204 * The last event performed by mouse.
205 */
206 public MouseEvent lastMEvent = new MouseEvent(this, 0, 0, 0, 0, 0, 0, false); // In case somebody reads it before first mouse move
207
208 private LinkedList<MapViewPaintable> temporaryLayers = new LinkedList<MapViewPaintable>();
209
210 private BufferedImage nonChangedLayersBuffer;
211 private BufferedImage offscreenBuffer;
212 // Layers that wasn't changed since last paint
213 private final List<Layer> nonChangedLayers = new ArrayList<Layer>();
214 private Layer changedLayer;
215 private int lastViewID;
216 private boolean paintPreferencesChanged = true;
217 private Rectangle lastClipBounds = new Rectangle();
218 private MapMover mapMover;
219
220 /**
221 * Constructs a new {@code MapView}.
222 * @param contentPane The content pane used to register shortcuts in its
223 * {@link InputMap} and {@link ActionMap}
224 * @param viewportData the initial viewport of the map. Can be null, then
225 * the viewport is derived from the layer data.
226 */
227 public MapView(final JPanel contentPane, final ViewportData viewportData) {
228 Main.pref.addPreferenceChangeListener(this);
229
230 addComponentListener(new ComponentAdapter(){
231 @Override public void componentResized(ComponentEvent e) {
232 removeComponentListener(this);
233
234 MapSlider zoomSlider = new MapSlider(MapView.this);
235 add(zoomSlider);
236 zoomSlider.setBounds(3, 0, 114, 30);
237
238 MapScaler scaler = new MapScaler(MapView.this);
239 add(scaler);
240 scaler.setLocation(10,30);
241
242 mapMover = new MapMover(MapView.this, contentPane);
243 if (viewportData != null) {
244 zoomTo(viewportData.getCenter(), viewportData.getScale());
245 } else {
246 OsmDataLayer layer = getEditLayer();
247 if (layer != null) {
248 if (!zoomToDataSetBoundingBox(layer.data)) {
249 // no bounding box defined
250 AutoScaleAction.autoScale("data");
251 }
252 } else {
253 AutoScaleAction.autoScale("layer");
254 }
255 }
256 }
257 });
258
259 // listend to selection changes to redraw the map
260 DataSet.addSelectionListener(repaintSelectionChangedListener);
261
262 //store the last mouse action
263 this.addMouseMotionListener(new MouseMotionListener() {
264 @Override public void mouseDragged(MouseEvent e) {
265 mouseMoved(e);
266 }
267 @Override public void mouseMoved(MouseEvent e) {
268 lastMEvent = e;
269 }
270 });
271
272 if (Shortcut.findShortcut(KeyEvent.VK_TAB, 0)!=null)
273 {
274 setFocusTraversalKeysEnabled(false);
275 }
276 }
277
278 /**
279 * Adds a GPX layer. A GPX layer is added below the lowest data layer.
280 *
281 * @param layer the GPX layer
282 */
283 protected void addGpxLayer(GpxLayer layer) {
284 if (layers.isEmpty()) {
285 layers.add(layer);
286 return;
287 }
288 for (int i=layers.size()-1; i>= 0; i--) {
289 if (layers.get(i) instanceof OsmDataLayer) {
290 if (i == layers.size()-1) {
291 layers.add(layer);
292 } else {
293 layers.add(i+1, layer);
294 }
295 return;
296 }
297 }
298 layers.add(0, layer);
299 }
300
301 /**
302 * Add a layer to the current MapView. The layer will be added at topmost
303 * position.
304 * @param layer The layer to add
305 */
306 public void addLayer(Layer layer) {
307 if (layer instanceof MarkerLayer && playHeadMarker == null) {
308 playHeadMarker = PlayHeadMarker.create();
309 }
310
311 if (layer instanceof GpxLayer) {
312 addGpxLayer((GpxLayer)layer);
313 } else if (layers.isEmpty()) {
314 layers.add(layer);
315 } else if (layer.isBackgroundLayer()) {
316 int i = 0;
317 for (; i < layers.size(); i++) {
318 if (layers.get(i).isBackgroundLayer()) {
319 break;
320 }
321 }
322 layers.add(i, layer);
323 } else {
324 layers.add(0, layer);
325 }
326 fireLayerAdded(layer);
327 boolean isOsmDataLayer = layer instanceof OsmDataLayer;
328 if (isOsmDataLayer) {
329 ((OsmDataLayer)layer).addLayerStateChangeListener(this);
330 }
331 boolean callSetActiveLayer = isOsmDataLayer || activeLayer == null;
332 if (callSetActiveLayer) {
333 // autoselect the new layer
334 setActiveLayer(layer); // also repaints this MapView
335 }
336 layer.addPropertyChangeListener(this);
337 Main.addProjectionChangeListener(layer);
338 AudioPlayer.reset();
339 if (!callSetActiveLayer) {
340 repaint();
341 }
342 }
343
344 @Override
345 protected DataSet getCurrentDataSet() {
346 if (editLayer != null)
347 return editLayer.data;
348 else
349 return null;
350 }
351
352 /**
353 * Replies true if the active layer is drawable.
354 *
355 * @return true if the active layer is drawable, false otherwise
356 */
357 public boolean isActiveLayerDrawable() {
358 return editLayer != null;
359 }
360
361 /**
362 * Replies true if the active layer is visible.
363 *
364 * @return true if the active layer is visible, false otherwise
365 */
366 public boolean isActiveLayerVisible() {
367 return isActiveLayerDrawable() && editLayer.isVisible();
368 }
369
370 /**
371 * Determines the next active data layer according to the following
372 * rules:
373 * <ul>
374 * <li>if there is at least one {@link OsmDataLayer} the first one
375 * becomes active</li>
376 * <li>otherwise, the top most layer of any type becomes active</li>
377 * </ul>
378 *
379 * @return the next active data layer
380 */
381 protected Layer determineNextActiveLayer(List<Layer> layersList) {
382 // First look for data layer
383 for (Layer layer:layersList) {
384 if (layer instanceof OsmDataLayer)
385 return layer;
386 }
387
388 // Then any layer
389 if (!layersList.isEmpty())
390 return layersList.get(0);
391
392 // and then give up
393 return null;
394
395 }
396
397 /**
398 * Remove the layer from the mapview. If the layer was in the list before,
399 * an LayerChange event is fired.
400 * @param layer The layer to remove
401 */
402 public void removeLayer(Layer layer) {
403 List<Layer> layersList = new ArrayList<Layer>(layers);
404
405 if (!layersList.remove(layer))
406 return;
407
408 setEditLayer(layersList);
409
410 if (layer == activeLayer) {
411 setActiveLayer(determineNextActiveLayer(layersList), false);
412 }
413
414 if (layer instanceof OsmDataLayer) {
415 ((OsmDataLayer)layer).removeLayerPropertyChangeListener(this);
416 }
417
418 layers.remove(layer);
419 Main.removeProjectionChangeListener(layer);
420 fireLayerRemoved(layer);
421 layer.removePropertyChangeListener(this);
422 layer.destroy();
423 AudioPlayer.reset();
424 repaint();
425 }
426
427 private boolean virtualNodesEnabled = false;
428
429 public void setVirtualNodesEnabled(boolean enabled) {
430 if(virtualNodesEnabled != enabled) {
431 virtualNodesEnabled = enabled;
432 repaint();
433 }
434 }
435 public boolean isVirtualNodesEnabled() {
436 return virtualNodesEnabled;
437 }
438
439 /**
440 * Moves the layer to the given new position. No event is fired, but repaints
441 * according to the new Z-Order of the layers.
442 *
443 * @param layer The layer to move
444 * @param pos The new position of the layer
445 */
446 public void moveLayer(Layer layer, int pos) {
447 int curLayerPos = layers.indexOf(layer);
448 if (curLayerPos == -1)
449 throw new IllegalArgumentException(tr("Layer not in list."));
450 if (pos == curLayerPos)
451 return; // already in place.
452 layers.remove(curLayerPos);
453 if (pos >= layers.size()) {
454 layers.add(layer);
455 } else {
456 layers.add(pos, layer);
457 }
458 setEditLayer(layers);
459 AudioPlayer.reset();
460 repaint();
461 }
462
463 public int getLayerPos(Layer layer) {
464 int curLayerPos = layers.indexOf(layer);
465 if (curLayerPos == -1)
466 throw new IllegalArgumentException(tr("Layer not in list."));
467 return curLayerPos;
468 }
469
470 /**
471 * Creates a list of the visible layers in Z-Order, the layer with the lowest Z-Order
472 * first, layer with the highest Z-Order last.
473 *
474 * @return a list of the visible in Z-Order, the layer with the lowest Z-Order
475 * first, layer with the highest Z-Order last.
476 */
477 protected List<Layer> getVisibleLayersInZOrder() {
478 ArrayList<Layer> ret = new ArrayList<Layer>();
479 for (Layer l: layers) {
480 if (l.isVisible()) {
481 ret.add(l);
482 }
483 }
484 // sort according to position in the list of layers, with one exception:
485 // an active data layer always becomes a higher Z-Order than all other
486 // data layers
487 //
488 Collections.sort(
489 ret,
490 new Comparator<Layer>() {
491 @Override public int compare(Layer l1, Layer l2) {
492 if (l1 instanceof OsmDataLayer && l2 instanceof OsmDataLayer) {
493 if (l1 == getActiveLayer()) return -1;
494 if (l2 == getActiveLayer()) return 1;
495 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
496 } else
497 return Integer.valueOf(layers.indexOf(l1)).compareTo(layers.indexOf(l2));
498 }
499 }
500 );
501 Collections.reverse(ret);
502 return ret;
503 }
504
505 private void paintLayer(Layer layer, Graphics2D g, Bounds box) {
506 if (layer.getOpacity() < 1) {
507 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,(float)layer.getOpacity()));
508 }
509 layer.paint(g, this, box);
510 g.setPaintMode();
511 }
512
513 /**
514 * Draw the component.
515 */
516 @Override public void paint(Graphics g) {
517 if (BugReportExceptionHandler.exceptionHandlingInProgress())
518 return;
519
520 if (center == null)
521 return; // no data loaded yet.
522
523 List<Layer> visibleLayers = getVisibleLayersInZOrder();
524
525 int nonChangedLayersCount = 0;
526 for (Layer l: visibleLayers) {
527 if (l.isChanged() || l == changedLayer) {
528 break;
529 } else {
530 nonChangedLayersCount++;
531 }
532 }
533
534 boolean canUseBuffer;
535
536 synchronized (this) {
537 canUseBuffer = !paintPreferencesChanged;
538 paintPreferencesChanged = false;
539 }
540 canUseBuffer = canUseBuffer && nonChangedLayers.size() <= nonChangedLayersCount &&
541 lastViewID == getViewID() && lastClipBounds.contains(g.getClipBounds());
542 if (canUseBuffer) {
543 for (int i=0; i<nonChangedLayers.size(); i++) {
544 if (visibleLayers.get(i) != nonChangedLayers.get(i)) {
545 canUseBuffer = false;
546 break;
547 }
548 }
549 }
550
551 if (null == offscreenBuffer || offscreenBuffer.getWidth() != getWidth() || offscreenBuffer.getHeight() != getHeight()) {
552 offscreenBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
553 }
554
555 Graphics2D tempG = offscreenBuffer.createGraphics();
556 tempG.setClip(g.getClip());
557 Bounds box = getLatLonBounds(g.getClipBounds());
558
559 if (!canUseBuffer || nonChangedLayersBuffer == null) {
560 if (null == nonChangedLayersBuffer || nonChangedLayersBuffer.getWidth() != getWidth() || nonChangedLayersBuffer.getHeight() != getHeight()) {
561 nonChangedLayersBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
562 }
563 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
564 g2.setClip(g.getClip());
565 g2.setColor(PaintColors.getBackgroundColor());
566 g2.fillRect(0, 0, getWidth(), getHeight());
567
568 for (int i=0; i<nonChangedLayersCount; i++) {
569 paintLayer(visibleLayers.get(i),g2, box);
570 }
571 } else {
572 // Maybe there were more unchanged layers then last time - draw them to buffer
573 if (nonChangedLayers.size() != nonChangedLayersCount) {
574 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
575 g2.setClip(g.getClip());
576 for (int i=nonChangedLayers.size(); i<nonChangedLayersCount; i++) {
577 paintLayer(visibleLayers.get(i),g2, box);
578 }
579 }
580 }
581
582 nonChangedLayers.clear();
583 changedLayer = null;
584 for (int i=0; i<nonChangedLayersCount; i++) {
585 nonChangedLayers.add(visibleLayers.get(i));
586 }
587 lastViewID = getViewID();
588 lastClipBounds = g.getClipBounds();
589
590 tempG.drawImage(nonChangedLayersBuffer, 0, 0, null);
591
592 for (int i=nonChangedLayersCount; i<visibleLayers.size(); i++) {
593 paintLayer(visibleLayers.get(i),tempG, box);
594 }
595
596 for (MapViewPaintable mvp : temporaryLayers) {
597 mvp.paint(tempG, this, box);
598 }
599
600 // draw world borders
601 tempG.setColor(Color.WHITE);
602 Bounds b = getProjection().getWorldBoundsLatLon();
603 double lat = b.getMin().lat();
604 double lon = b.getMin().lon();
605
606 Point p = getPoint(b.getMin());
607
608 GeneralPath path = new GeneralPath();
609
610 path.moveTo(p.x, p.y);
611 double max = b.getMax().lat();
612 for(; lat <= max; lat += 1.0)
613 {
614 p = getPoint(new LatLon(lat >= max ? max : lat, lon));
615 path.lineTo(p.x, p.y);
616 }
617 lat = max; max = b.getMax().lon();
618 for(; lon <= max; lon += 1.0)
619 {
620 p = getPoint(new LatLon(lat, lon >= max ? max : lon));
621 path.lineTo(p.x, p.y);
622 }
623 lon = max; max = b.getMin().lat();
624 for(; lat >= max; lat -= 1.0)
625 {
626 p = getPoint(new LatLon(lat <= max ? max : lat, lon));
627 path.lineTo(p.x, p.y);
628 }
629 lat = max; max = b.getMin().lon();
630 for(; lon >= max; lon -= 1.0)
631 {
632 p = getPoint(new LatLon(lat, lon <= max ? max : lon));
633 path.lineTo(p.x, p.y);
634 }
635
636 int w = getWidth();
637 int h = getHeight();
638
639 // Work around OpenJDK having problems when drawing out of bounds
640 final Area border = new Area(path);
641 // Make the viewport 1px larger in every direction to prevent an
642 // additional 1px border when zooming in
643 final Area viewport = new Area(new Rectangle(-1, -1, w + 2, h + 2));
644 border.intersect(viewport);
645 tempG.draw(border);
646
647 if (Main.isDisplayingMapView() && Main.map.filterDialog != null) {
648 Main.map.filterDialog.drawOSDText(tempG);
649 }
650
651 if (playHeadMarker != null) {
652 playHeadMarker.paint(tempG, this);
653 }
654
655 g.drawImage(offscreenBuffer, 0, 0, null);
656 super.paint(g);
657 }
658
659 /**
660 * Set the new dimension to the view.
661 */
662 public void recalculateCenterScale(BoundingXYVisitor box) {
663 if (box == null) {
664 box = new BoundingXYVisitor();
665 }
666 if (box.getBounds() == null) {
667 box.visit(getProjection().getWorldBoundsLatLon());
668 }
669 if (!box.hasExtend()) {
670 box.enlargeBoundingBox();
671 }
672
673 zoomTo(box.getBounds());
674 }
675
676 /**
677 * @return An unmodifiable collection of all layers
678 */
679 public Collection<Layer> getAllLayers() {
680 return Collections.unmodifiableCollection(layers);
681 }
682
683 /**
684 * @return An unmodifiable ordered list of all layers
685 */
686 public List<Layer> getAllLayersAsList() {
687 return Collections.unmodifiableList(layers);
688 }
689
690 /**
691 * Replies an unmodifiable list of layers of a certain type.
692 *
693 * Example:
694 * <pre>
695 * List<WMSLayer> wmsLayers = getLayersOfType(WMSLayer.class);
696 * </pre>
697 *
698 * @return an unmodifiable list of layers of a certain type.
699 */
700 public <T> List<T> getLayersOfType(Class<T> ofType) {
701 ArrayList<T> ret = new ArrayList<T>();
702 for (Layer layer : getAllLayersAsList()) {
703 if (ofType.isInstance(layer)) {
704 ret.add(ofType.cast(layer));
705 }
706 }
707 return ret;
708 }
709
710 /**
711 * Replies the number of layers managed by this mav view
712 *
713 * @return the number of layers managed by this mav view
714 */
715 public int getNumLayers() {
716 return layers.size();
717 }
718
719 /**
720 * Replies true if there is at least one layer in this map view
721 *
722 * @return true if there is at least one layer in this map view
723 */
724 public boolean hasLayers() {
725 return getNumLayers() > 0;
726 }
727
728 private void setEditLayer(List<Layer> layersList) {
729 OsmDataLayer newEditLayer = layersList.contains(editLayer)?editLayer:null;
730 OsmDataLayer oldEditLayer = editLayer;
731
732 // Find new edit layer
733 if (activeLayer != editLayer || !layersList.contains(editLayer)) {
734 if (activeLayer instanceof OsmDataLayer && layersList.contains(activeLayer)) {
735 newEditLayer = (OsmDataLayer) activeLayer;
736 } else {
737 for (Layer layer:layersList) {
738 if (layer instanceof OsmDataLayer) {
739 newEditLayer = (OsmDataLayer) layer;
740 break;
741 }
742 }
743 }
744 }
745
746 // Set new edit layer
747 if (newEditLayer != editLayer) {
748 if (newEditLayer == null) {
749 getCurrentDataSet().setSelected();
750 }
751
752 editLayer = newEditLayer;
753 fireEditLayerChanged(oldEditLayer, newEditLayer);
754 refreshTitle();
755 }
756
757 }
758
759 /**
760 * Sets the active layer to <code>layer</code>. If <code>layer</code> is an instance
761 * of {@link OsmDataLayer} also sets {@link #editLayer} to <code>layer</code>.
762 *
763 * @param layer the layer to be activate; must be one of the layers in the list of layers
764 * @exception IllegalArgumentException thrown if layer is not in the lis of layers
765 */
766 public void setActiveLayer(Layer layer) {
767 setActiveLayer(layer, true);
768 }
769
770 private void setActiveLayer(Layer layer, boolean setEditLayer) {
771 if (layer != null && !layers.contains(layer))
772 throw new IllegalArgumentException(tr("Layer ''{0}'' must be in list of layers", layer.toString()));
773
774 if (layer == activeLayer)
775 return;
776
777 Layer old = activeLayer;
778 activeLayer = layer;
779 if (setEditLayer) {
780 setEditLayer(layers);
781 }
782 fireActiveLayerChanged(old, layer);
783
784 /* This only makes the buttons look disabled. Disabling the actions as well requires
785 * the user to re-select the tool after i.e. moving a layer. While testing I found
786 * that I switch layers and actions at the same time and it was annoying to mind the
787 * order. This way it works as visual clue for new users */
788 for (AbstractButton b: Main.map.allMapModeButtons) {
789 MapMode mode = (MapMode)b.getAction();
790 if (mode.layerIsSupported(layer)) {
791 Main.registerActionShortcut(mode, mode.getShortcut()); //fix #6876
792 b.setEnabled(true);
793 } else {
794 Main.unregisterShortcut(mode.getShortcut());
795 b.setEnabled(false);
796 }
797 }
798 AudioPlayer.reset();
799 repaint();
800 }
801
802 /**
803 * Replies the currently active layer
804 *
805 * @return the currently active layer (may be null)
806 */
807 public Layer getActiveLayer() {
808 return activeLayer;
809 }
810
811 /**
812 * Replies the current edit layer, if any
813 *
814 * @return the current edit layer. May be null.
815 */
816 public OsmDataLayer getEditLayer() {
817 return editLayer;
818 }
819
820 /**
821 * replies true if the list of layers managed by this map view contain layer
822 *
823 * @param layer the layer
824 * @return true if the list of layers managed by this map view contain layer
825 */
826 public boolean hasLayer(Layer layer) {
827 return layers.contains(layer);
828 }
829
830 /**
831 * Tries to zoom to the download boundingbox[es] of the current edit layer
832 * (aka {@link OsmDataLayer}). If the edit layer has multiple download bounding
833 * boxes it zooms to a large virtual bounding box containing all smaller ones.
834 *
835 * @return <code>true</code> if a zoom operation has been performed
836 */
837 public boolean zoomToDataSetBoundingBox(DataSet ds) {
838 // In case we already have an existing data layer ...
839 OsmDataLayer layer= getEditLayer();
840 if (layer == null)
841 return false;
842 Collection<DataSource> dataSources = ds.dataSources;
843 // ... with bounding box[es] of data loaded from OSM or a file...
844 BoundingXYVisitor bbox = new BoundingXYVisitor();
845 for (DataSource source : dataSources) {
846 bbox.visit(source.bounds);
847 }
848 if (bbox.hasExtend()) {
849 // ... we zoom to it's bounding box
850 recalculateCenterScale(bbox);
851 return true;
852 }
853 return false;
854 }
855
856 public boolean addTemporaryLayer(MapViewPaintable mvp) {
857 if (temporaryLayers.contains(mvp)) return false;
858 return temporaryLayers.add(mvp);
859 }
860
861 public boolean removeTemporaryLayer(MapViewPaintable mvp) {
862 return temporaryLayers.remove(mvp);
863 }
864
865 @Override
866 public void propertyChange(PropertyChangeEvent evt) {
867 if (evt.getPropertyName().equals(Layer.VISIBLE_PROP)) {
868 repaint();
869 } else if (evt.getPropertyName().equals(Layer.OPACITY_PROP)) {
870 Layer l = (Layer)evt.getSource();
871 if (l.isVisible()) {
872 changedLayer = l;
873 repaint();
874 }
875 } else if (evt.getPropertyName().equals(OsmDataLayer.REQUIRES_SAVE_TO_DISK_PROP)
876 || evt.getPropertyName().equals(OsmDataLayer.REQUIRES_UPLOAD_TO_SERVER_PROP)) {
877 OsmDataLayer layer = (OsmDataLayer)evt.getSource();
878 if (layer == getEditLayer()) {
879 refreshTitle();
880 }
881 }
882 }
883
884 protected void refreshTitle() {
885 boolean dirty = editLayer != null && (editLayer.requiresSaveToFile() || (editLayer.requiresUploadToServer() && !editLayer.isUploadDiscouraged()));
886 if (dirty) {
887 JOptionPane.getFrameForComponent(Main.parent).setTitle("* " + tr("Java OpenStreetMap Editor"));
888 } else {
889 JOptionPane.getFrameForComponent(Main.parent).setTitle(tr("Java OpenStreetMap Editor"));
890 }
891 }
892
893 @Override
894 public void preferenceChanged(PreferenceChangeEvent e) {
895 synchronized (this) {
896 paintPreferencesChanged = true;
897 }
898 }
899
900 private SelectionChangedListener repaintSelectionChangedListener = new SelectionChangedListener(){
901 @Override public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
902 repaint();
903 }
904 };
905
906 public void destroy() {
907 Main.pref.removePreferenceChangeListener(this);
908 DataSet.removeSelectionListener(repaintSelectionChangedListener);
909 MultipolygonCache.getInstance().clear(this);
910 if (mapMover != null) {
911 mapMover.destroy();
912 }
913 }
914
915 @Override
916 public void uploadDiscouragedChanged(OsmDataLayer layer, boolean newValue) {
917 if (layer == getEditLayer()) {
918 refreshTitle();
919 }
920 }
921}
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