source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 8397

Last change on this file since 8397 was 8395, checked in by Don-vip, 9 years ago

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1// License: GPL. For details, see LICENSE file.
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.Dimension;
9import java.awt.Graphics;
10import java.awt.Graphics2D;
11import java.awt.Point;
12import java.awt.Rectangle;
13import java.awt.event.ComponentAdapter;
14import java.awt.event.ComponentEvent;
15import java.awt.event.KeyEvent;
16import java.awt.event.MouseAdapter;
17import java.awt.event.MouseEvent;
18import java.awt.event.MouseMotionListener;
19import java.awt.geom.Area;
20import java.awt.geom.GeneralPath;
21import java.awt.image.BufferedImage;
22import java.beans.PropertyChangeEvent;
23import java.beans.PropertyChangeListener;
24import java.util.ArrayList;
25import java.util.Collection;
26import java.util.Collections;
27import java.util.Comparator;
28import java.util.LinkedHashSet;
29import java.util.List;
30import java.util.Set;
31import java.util.concurrent.CopyOnWriteArrayList;
32
33import javax.swing.AbstractButton;
34import javax.swing.ActionMap;
35import javax.swing.InputMap;
36import javax.swing.JFrame;
37import javax.swing.JPanel;
38
39import org.openstreetmap.josm.Main;
40import org.openstreetmap.josm.actions.mapmode.MapMode;
41import org.openstreetmap.josm.data.Bounds;
42import org.openstreetmap.josm.data.Preferences.PreferenceChangeEvent;
43import org.openstreetmap.josm.data.Preferences.PreferenceChangedListener;
44import org.openstreetmap.josm.data.SelectionChangedListener;
45import org.openstreetmap.josm.data.ViewportData;
46import org.openstreetmap.josm.data.coor.EastNorth;
47import org.openstreetmap.josm.data.coor.LatLon;
48import org.openstreetmap.josm.data.imagery.ImageryInfo;
49import org.openstreetmap.josm.data.osm.DataSet;
50import org.openstreetmap.josm.data.osm.OsmPrimitive;
51import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors;
52import org.openstreetmap.josm.data.osm.visitor.paint.relations.MultipolygonCache;
53import org.openstreetmap.josm.gui.layer.GpxLayer;
54import org.openstreetmap.josm.gui.layer.ImageryLayer;
55import org.openstreetmap.josm.gui.layer.Layer;
56import org.openstreetmap.josm.gui.layer.MapViewPaintable;
57import org.openstreetmap.josm.gui.layer.OsmDataLayer;
58import org.openstreetmap.josm.gui.layer.geoimage.GeoImageLayer;
59import org.openstreetmap.josm.gui.layer.markerlayer.MarkerLayer;
60import org.openstreetmap.josm.gui.layer.markerlayer.PlayHeadMarker;
61import org.openstreetmap.josm.gui.util.GuiHelper;
62import org.openstreetmap.josm.tools.AudioPlayer;
63import org.openstreetmap.josm.tools.BugReportExceptionHandler;
64import org.openstreetmap.josm.tools.Shortcut;
65import org.openstreetmap.josm.tools.Utils;
66
67/**
68 * This is a component used in the {@link MapFrame} for browsing the map. It use is to
69 * provide the MapMode's enough capabilities to operate.<br><br>
70 *
71 * {@code MapView} holds meta-data about the data set currently displayed, as scale level,
72 * center point viewed, what scrolling mode or editing mode is selected or with
73 * what projection the map is viewed etc..<br><br>
74 *
75 * {@code MapView} is able to administrate several layers.
76 *
77 * @author imi
78 */
79public class MapView extends NavigatableComponent implements PropertyChangeListener, PreferenceChangedListener, OsmDataLayer.LayerStateChangeListener {
80
81 /**
82 * Interface to notify listeners of a layer change.
83 * @author imi
84 */
85 public interface LayerChangeListener {
86
87 /**
88 * Notifies this listener that the active layer has changed.
89 * @param oldLayer The previous active layer
90 * @param newLayer The new activer layer
91 */
92 void activeLayerChange(Layer oldLayer, Layer newLayer);
93
94 /**
95 * Notifies this listener that a layer has been added.
96 * @param newLayer The new added layer
97 */
98 void layerAdded(Layer newLayer);
99
100 /**
101 * Notifies this listener that a layer has been removed.
102 * @param oldLayer The old removed layer
103 */
104 void layerRemoved(Layer oldLayer);
105 }
106
107 public interface EditLayerChangeListener {
108 void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer);
109 }
110
111 public boolean viewportFollowing = false;
112
113 /**
114 * the layer listeners
115 */
116 private static final CopyOnWriteArrayList<LayerChangeListener> layerChangeListeners = new CopyOnWriteArrayList<>();
117 private static final CopyOnWriteArrayList<EditLayerChangeListener> editLayerChangeListeners = new CopyOnWriteArrayList<>();
118
119 /**
120 * Removes a layer change listener
121 *
122 * @param listener the listener. Ignored if null or already registered.
123 */
124 public static void removeLayerChangeListener(LayerChangeListener listener) {
125 layerChangeListeners.remove(listener);
126 }
127
128 public static void removeEditLayerChangeListener(EditLayerChangeListener listener) {
129 editLayerChangeListeners.remove(listener);
130 }
131
132 /**
133 * Adds a layer change listener
134 *
135 * @param listener the listener. Ignored if null or already registered.
136 */
137 public static void addLayerChangeListener(LayerChangeListener listener) {
138 if (listener != null) {
139 layerChangeListeners.addIfAbsent(listener);
140 }
141 }
142
143 /**
144 * Adds a layer change listener
145 *
146 * @param listener the listener. Ignored if null or already registered.
147 * @param initialFire fire an active-layer-changed-event right after adding
148 * the listener in case there is a layer present (should be)
149 */
150 public static void addLayerChangeListener(LayerChangeListener listener, boolean initialFire) {
151 addLayerChangeListener(listener);
152 if (initialFire && Main.isDisplayingMapView()) {
153 listener.activeLayerChange(null, Main.map.mapView.getActiveLayer());
154 }
155 }
156
157 /**
158 * Adds an edit layer change listener
159 *
160 * @param listener the listener. Ignored if null or already registered.
161 * @param initialFire fire an edit-layer-changed-event right after adding
162 * the listener in case there is an edit layer present
163 */
164 public static void addEditLayerChangeListener(EditLayerChangeListener listener, boolean initialFire) {
165 addEditLayerChangeListener(listener);
166 if (initialFire && Main.isDisplayingMapView() && Main.map.mapView.getEditLayer() != null) {
167 listener.editLayerChanged(null, Main.map.mapView.getEditLayer());
168 }
169 }
170
171 /**
172 * Adds an edit layer change listener
173 *
174 * @param listener the listener. Ignored if null or already registered.
175 */
176 public static void addEditLayerChangeListener(EditLayerChangeListener listener) {
177 if (listener != null) {
178 editLayerChangeListeners.addIfAbsent(listener);
179 }
180 }
181
182 protected static void fireActiveLayerChanged(Layer oldLayer, Layer newLayer) {
183 for (LayerChangeListener l : layerChangeListeners) {
184 l.activeLayerChange(oldLayer, newLayer);
185 }
186 }
187
188 protected static void fireLayerAdded(Layer newLayer) {
189 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
190 l.layerAdded(newLayer);
191 }
192 }
193
194 protected static void fireLayerRemoved(Layer layer) {
195 for (MapView.LayerChangeListener l : MapView.layerChangeListeners) {
196 l.layerRemoved(layer);
197 }
198 }
199
200 protected static void fireEditLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
201 for (EditLayerChangeListener l : editLayerChangeListeners) {
202 l.editLayerChanged(oldLayer, newLayer);
203 }
204 }
205
206 /**
207 * A list of all layers currently loaded.
208 */
209 private final transient List<Layer> layers = new ArrayList<>();
210 /**
211 * The play head marker: there is only one of these so it isn't in any specific layer
212 */
213 public transient PlayHeadMarker playHeadMarker = null;
214
215 /**
216 * The layer from the layers list that is currently active.
217 */
218 private transient Layer activeLayer;
219
220 private transient OsmDataLayer editLayer;
221
222 /**
223 * The last event performed by mouse.
224 */
225 public MouseEvent lastMEvent = new MouseEvent(this, 0, 0, 0, 0, 0, 0, false); // In case somebody reads it before first mouse move
226
227 private final transient Set<MapViewPaintable> temporaryLayers = new LinkedHashSet<>();
228
229 private transient BufferedImage nonChangedLayersBuffer;
230 private transient BufferedImage offscreenBuffer;
231 // Layers that wasn't changed since last paint
232 private final transient List<Layer> nonChangedLayers = new ArrayList<>();
233 private transient Layer changedLayer;
234 private int lastViewID;
235 private boolean paintPreferencesChanged = true;
236 private Rectangle lastClipBounds = new Rectangle();
237 private transient MapMover mapMover;
238
239 /**
240 * Constructs a new {@code MapView}.
241 * @param contentPane The content pane used to register shortcuts in its
242 * {@link InputMap} and {@link ActionMap}
243 * @param viewportData the initial viewport of the map. Can be null, then
244 * the viewport is derived from the layer data.
245 */
246 public MapView(final JPanel contentPane, final ViewportData viewportData) {
247 initialViewport = viewportData;
248 Main.pref.addPreferenceChangeListener(this);
249 final boolean unregisterTab = Shortcut.findShortcut(KeyEvent.VK_TAB, 0)!=null;
250
251 addComponentListener(new ComponentAdapter(){
252 @Override public void componentResized(ComponentEvent e) {
253 removeComponentListener(this);
254
255 MapSlider zoomSlider = new MapSlider(MapView.this);
256 add(zoomSlider);
257 zoomSlider.setBounds(3, 0, 114, 30);
258 zoomSlider.setFocusTraversalKeysEnabled(!unregisterTab);
259
260 MapScaler scaler = new MapScaler(MapView.this);
261 add(scaler);
262 scaler.setLocation(10,30);
263
264 mapMover = new MapMover(MapView.this, contentPane);
265 }
266 });
267
268 // listend to selection changes to redraw the map
269 DataSet.addSelectionListener(repaintSelectionChangedListener);
270
271 //store the last mouse action
272 this.addMouseMotionListener(new MouseMotionListener() {
273 @Override public void mouseDragged(MouseEvent e) {
274 mouseMoved(e);
275 }
276 @Override public void mouseMoved(MouseEvent e) {
277 lastMEvent = e;
278 }
279 });
280 this.addMouseListener(new MouseAdapter() {
281 @Override
282 public void mousePressed(MouseEvent me) {
283 // focus the MapView component when mouse is pressed inside it
284 requestFocus();
285 }
286 });
287
288 if (Shortcut.findShortcut(KeyEvent.VK_TAB, 0)!=null) {
289 setFocusTraversalKeysEnabled(false);
290 }
291 }
292
293 // remebered geometry of the component
294 private Dimension oldSize = null;
295 private Point oldLoc = null;
296
297 /*
298 * Call this method to keep map position on screen during next repaint
299 */
300 public void rememberLastPositionOnScreen() {
301 oldSize = getSize();
302 oldLoc = getLocationOnScreen();
303 }
304
305 /**
306 * Adds a GPX layer. A GPX layer is added below the lowest data layer.
307 *
308 * @param layer the GPX layer
309 */
310 protected void addGpxLayer(GpxLayer layer) {
311 if (layers.isEmpty()) {
312 layers.add(layer);
313 return;
314 }
315 for (int i=layers.size()-1; i>= 0; i--) {
316 if (layers.get(i) instanceof OsmDataLayer) {
317 if (i == layers.size()-1) {
318 layers.add(layer);
319 } else {
320 layers.add(i+1, layer);
321 }
322 return;
323 }
324 }
325 layers.add(0, layer);
326 }
327
328 /**
329 * Add a layer to the current MapView. The layer will be added at topmost
330 * position.
331 * @param layer The layer to add
332 */
333 public void addLayer(Layer layer) {
334 if (layer instanceof MarkerLayer && playHeadMarker == null) {
335 playHeadMarker = PlayHeadMarker.create();
336 }
337
338 if (layer instanceof GpxLayer) {
339 addGpxLayer((GpxLayer)layer);
340 } else if (layers.isEmpty()) {
341 layers.add(layer);
342 } else if (layer.isBackgroundLayer()) {
343 int i = 0;
344 for (; i < layers.size(); i++) {
345 if (layers.get(i).isBackgroundLayer()) {
346 break;
347 }
348 }
349 layers.add(i, layer);
350 } else {
351 layers.add(0, layer);
352 }
353 fireLayerAdded(layer);
354 boolean isOsmDataLayer = layer instanceof OsmDataLayer;
355 if (isOsmDataLayer) {
356 ((OsmDataLayer)layer).addLayerStateChangeListener(this);
357 }
358 boolean callSetActiveLayer = isOsmDataLayer || activeLayer == null;
359 if (callSetActiveLayer) {
360 // autoselect the new layer
361 setActiveLayer(layer); // also repaints this MapView
362 }
363 layer.addPropertyChangeListener(this);
364 Main.addProjectionChangeListener(layer);
365 AudioPlayer.reset();
366 if (!callSetActiveLayer) {
367 repaint();
368 }
369 }
370
371 @Override
372 protected DataSet getCurrentDataSet() {
373 if (editLayer != null)
374 return editLayer.data;
375 else
376 return null;
377 }
378
379 /**
380 * Replies true if the active layer is drawable.
381 *
382 * @return true if the active layer is drawable, false otherwise
383 */
384 public boolean isActiveLayerDrawable() {
385 return editLayer != null;
386 }
387
388 /**
389 * Replies true if the active layer is visible.
390 *
391 * @return true if the active layer is visible, false otherwise
392 */
393 public boolean isActiveLayerVisible() {
394 return isActiveLayerDrawable() && editLayer.isVisible();
395 }
396
397 /**
398 * Determines the next active data layer according to the following
399 * rules:
400 * <ul>
401 * <li>if there is at least one {@link OsmDataLayer} the first one
402 * becomes active</li>
403 * <li>otherwise, the top most layer of any type becomes active</li>
404 * </ul>
405 *
406 * @return the next active data layer
407 */
408 protected Layer determineNextActiveLayer(List<Layer> layersList) {
409 // First look for data layer
410 for (Layer layer:layersList) {
411 if (layer instanceof OsmDataLayer)
412 return layer;
413 }
414
415 // Then any layer
416 if (!layersList.isEmpty())
417 return layersList.get(0);
418
419 // and then give up
420 return null;
421
422 }
423
424 /**
425 * Remove the layer from the mapview. If the layer was in the list before,
426 * an LayerChange event is fired.
427 * @param layer The layer to remove
428 */
429 public void removeLayer(Layer layer) {
430 List<Layer> layersList = new ArrayList<>(layers);
431
432 if (!layersList.remove(layer))
433 return;
434
435 setEditLayer(layersList);
436
437 if (layer == activeLayer) {
438 setActiveLayer(determineNextActiveLayer(layersList), false);
439 }
440
441 if (layer instanceof OsmDataLayer) {
442 ((OsmDataLayer)layer).removeLayerPropertyChangeListener(this);
443 }
444
445 layers.remove(layer);
446 Main.removeProjectionChangeListener(layer);
447 fireLayerRemoved(layer);
448 layer.removePropertyChangeListener(this);
449 layer.destroy();
450 AudioPlayer.reset();
451 repaint();
452 }
453
454 private boolean virtualNodesEnabled = false;
455
456 public void setVirtualNodesEnabled(boolean enabled) {
457 if(virtualNodesEnabled != enabled) {
458 virtualNodesEnabled = enabled;
459 repaint();
460 }
461 }
462 public boolean isVirtualNodesEnabled() {
463 return virtualNodesEnabled;
464 }
465
466 /**
467 * Moves the layer to the given new position. No event is fired, but repaints
468 * according to the new Z-Order of the layers.
469 *
470 * @param layer The layer to move
471 * @param pos The new position of the layer
472 */
473 public void moveLayer(Layer layer, int pos) {
474 int curLayerPos = layers.indexOf(layer);
475 if (curLayerPos == -1)
476 throw new IllegalArgumentException(tr("Layer not in list."));
477 if (pos == curLayerPos)
478 return; // already in place.
479 layers.remove(curLayerPos);
480 if (pos >= layers.size()) {
481 layers.add(layer);
482 } else {
483 layers.add(pos, layer);
484 }
485 setEditLayer(layers);
486 AudioPlayer.reset();
487 repaint();
488 }
489
490 public int getLayerPos(Layer layer) {
491 int curLayerPos = layers.indexOf(layer);
492 if (curLayerPos == -1)
493 throw new IllegalArgumentException(tr("Layer not in list."));
494 return curLayerPos;
495 }
496
497 /**
498 * Creates a list of the visible layers in Z-Order, the layer with the lowest Z-Order
499 * first, layer with the highest Z-Order last.
500 *
501 * @return a list of the visible in Z-Order, the layer with the lowest Z-Order
502 * first, layer with the highest Z-Order last.
503 */
504 protected List<Layer> getVisibleLayersInZOrder() {
505 List<Layer> ret = new ArrayList<>();
506 for (Layer l: layers) {
507 if (l.isVisible()) {
508 ret.add(l);
509 }
510 }
511 // sort according to position in the list of layers, with one exception:
512 // an active data layer always becomes a higher Z-Order than all other data layers
513 Collections.sort(
514 ret,
515 new Comparator<Layer>() {
516 @Override
517 public int compare(Layer l1, Layer l2) {
518 if (l1 instanceof OsmDataLayer && l2 instanceof OsmDataLayer) {
519 if (l1 == getActiveLayer()) return -1;
520 if (l2 == getActiveLayer()) return 1;
521 return Integer.compare(layers.indexOf(l1), layers.indexOf(l2));
522 } else
523 return Integer.compare(layers.indexOf(l1), layers.indexOf(l2));
524 }
525 }
526 );
527 Collections.reverse(ret);
528 return ret;
529 }
530
531 private void paintLayer(Layer layer, Graphics2D g, Bounds box) {
532 if (layer.getOpacity() < 1) {
533 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,(float)layer.getOpacity()));
534 }
535 layer.paint(g, this, box);
536 g.setPaintMode();
537 }
538
539 /**
540 * Draw the component.
541 */
542 @Override
543 public void paint(Graphics g) {
544 if (initialViewport != null) {
545 zoomTo(initialViewport);
546 initialViewport = null;
547 }
548 if (BugReportExceptionHandler.exceptionHandlingInProgress())
549 return;
550
551 if (center == null)
552 return; // no data loaded yet.
553
554 // if the position was remembered, we need to adjust center once before repainting
555 if (oldLoc != null && oldSize != null) {
556 Point l1 = getLocationOnScreen();
557 final EastNorth newCenter = new EastNorth(
558 center.getX()+ (l1.x-oldLoc.x - (oldSize.width-getWidth())/2.0)*getScale(),
559 center.getY()+ (oldLoc.y-l1.y + (oldSize.height-getHeight())/2.0)*getScale()
560 );
561 oldLoc = null; oldSize = null;
562 zoomTo(newCenter);
563 }
564
565 List<Layer> visibleLayers = getVisibleLayersInZOrder();
566
567 int nonChangedLayersCount = 0;
568 for (Layer l: visibleLayers) {
569 if (l.isChanged() || l == changedLayer) {
570 break;
571 } else {
572 nonChangedLayersCount++;
573 }
574 }
575
576 boolean canUseBuffer;
577
578 synchronized (this) {
579 canUseBuffer = !paintPreferencesChanged;
580 paintPreferencesChanged = false;
581 }
582 canUseBuffer = canUseBuffer && nonChangedLayers.size() <= nonChangedLayersCount &&
583 lastViewID == getViewID() && lastClipBounds.contains(g.getClipBounds());
584 if (canUseBuffer) {
585 for (int i=0; i<nonChangedLayers.size(); i++) {
586 if (visibleLayers.get(i) != nonChangedLayers.get(i)) {
587 canUseBuffer = false;
588 break;
589 }
590 }
591 }
592
593 if (null == offscreenBuffer || offscreenBuffer.getWidth() != getWidth() || offscreenBuffer.getHeight() != getHeight()) {
594 offscreenBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
595 }
596
597 Graphics2D tempG = offscreenBuffer.createGraphics();
598 tempG.setClip(g.getClip());
599 Bounds box = getLatLonBounds(g.getClipBounds());
600
601 if (!canUseBuffer || nonChangedLayersBuffer == null) {
602 if (null == nonChangedLayersBuffer || nonChangedLayersBuffer.getWidth() != getWidth() || nonChangedLayersBuffer.getHeight() != getHeight()) {
603 nonChangedLayersBuffer = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_3BYTE_BGR);
604 }
605 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
606 g2.setClip(g.getClip());
607 g2.setColor(PaintColors.getBackgroundColor());
608 g2.fillRect(0, 0, getWidth(), getHeight());
609
610 for (int i=0; i<nonChangedLayersCount; i++) {
611 paintLayer(visibleLayers.get(i),g2, box);
612 }
613 } else {
614 // Maybe there were more unchanged layers then last time - draw them to buffer
615 if (nonChangedLayers.size() != nonChangedLayersCount) {
616 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
617 g2.setClip(g.getClip());
618 for (int i=nonChangedLayers.size(); i<nonChangedLayersCount; i++) {
619 paintLayer(visibleLayers.get(i),g2, box);
620 }
621 }
622 }
623
624 nonChangedLayers.clear();
625 changedLayer = null;
626 for (int i=0; i<nonChangedLayersCount; i++) {
627 nonChangedLayers.add(visibleLayers.get(i));
628 }
629 lastViewID = getViewID();
630 lastClipBounds = g.getClipBounds();
631
632 tempG.drawImage(nonChangedLayersBuffer, 0, 0, null);
633
634 for (int i=nonChangedLayersCount; i<visibleLayers.size(); i++) {
635 paintLayer(visibleLayers.get(i),tempG, box);
636 }
637
638 for (MapViewPaintable mvp : temporaryLayers) {
639 mvp.paint(tempG, this, box);
640 }
641
642 // draw world borders
643 tempG.setColor(Color.WHITE);
644 Bounds b = getProjection().getWorldBoundsLatLon();
645 double lat = b.getMinLat();
646 double lon = b.getMinLon();
647
648 Point p = getPoint(b.getMin());
649
650 GeneralPath path = new GeneralPath();
651
652 path.moveTo(p.x, p.y);
653 double max = b.getMax().lat();
654 for(; lat <= max; lat += 1.0) {
655 p = getPoint(new LatLon(lat >= max ? max : lat, lon));
656 path.lineTo(p.x, p.y);
657 }
658 lat = max; max = b.getMax().lon();
659 for(; lon <= max; lon += 1.0) {
660 p = getPoint(new LatLon(lat, lon >= max ? max : lon));
661 path.lineTo(p.x, p.y);
662 }
663 lon = max; max = b.getMinLat();
664 for(; lat >= max; lat -= 1.0) {
665 p = getPoint(new LatLon(lat <= max ? max : lat, lon));
666 path.lineTo(p.x, p.y);
667 }
668 lat = max; max = b.getMinLon();
669 for(; lon >= max; lon -= 1.0) {
670 p = getPoint(new LatLon(lat, lon <= max ? max : lon));
671 path.lineTo(p.x, p.y);
672 }
673
674 int w = getWidth();
675 int h = getHeight();
676
677 // Work around OpenJDK having problems when drawing out of bounds
678 final Area border = new Area(path);
679 // Make the viewport 1px larger in every direction to prevent an
680 // additional 1px border when zooming in
681 final Area viewport = new Area(new Rectangle(-1, -1, w + 2, h + 2));
682 border.intersect(viewport);
683 tempG.draw(border);
684
685 if (Main.isDisplayingMapView() && Main.map.filterDialog != null) {
686 Main.map.filterDialog.drawOSDText(tempG);
687 }
688
689 if (playHeadMarker != null) {
690 playHeadMarker.paint(tempG, this);
691 }
692
693 g.drawImage(offscreenBuffer, 0, 0, null);
694 super.paint(g);
695 }
696
697 /**
698 * @return An unmodifiable collection of all layers
699 */
700 public Collection<Layer> getAllLayers() {
701 return Collections.unmodifiableCollection(new ArrayList<>(layers));
702 }
703
704 /**
705 * @return An unmodifiable ordered list of all layers
706 */
707 public List<Layer> getAllLayersAsList() {
708 return Collections.unmodifiableList(new ArrayList<>(layers));
709 }
710
711 /**
712 * Replies an unmodifiable list of layers of a certain type.
713 *
714 * Example:
715 * <pre>
716 * List&lt;WMSLayer&gt; wmsLayers = getLayersOfType(WMSLayer.class);
717 * </pre>
718 *
719 * @return an unmodifiable list of layers of a certain type.
720 */
721 public <T extends Layer> List<T> getLayersOfType(Class<T> ofType) {
722 return new ArrayList<>(Utils.filteredCollection(getAllLayers(), ofType));
723 }
724
725 /**
726 * Replies the number of layers managed by this mav view
727 *
728 * @return the number of layers managed by this mav view
729 */
730 public int getNumLayers() {
731 return layers.size();
732 }
733
734 /**
735 * Replies true if there is at least one layer in this map view
736 *
737 * @return true if there is at least one layer in this map view
738 */
739 public boolean hasLayers() {
740 return getNumLayers() > 0;
741 }
742
743 private void setEditLayer(List<Layer> layersList) {
744 OsmDataLayer newEditLayer = layersList.contains(editLayer)?editLayer:null;
745 OsmDataLayer oldEditLayer = editLayer;
746
747 // Find new edit layer
748 if (activeLayer != editLayer || !layersList.contains(editLayer)) {
749 if (activeLayer instanceof OsmDataLayer && layersList.contains(activeLayer)) {
750 newEditLayer = (OsmDataLayer) activeLayer;
751 } else {
752 for (Layer layer:layersList) {
753 if (layer instanceof OsmDataLayer) {
754 newEditLayer = (OsmDataLayer) layer;
755 break;
756 }
757 }
758 }
759 }
760
761 // Set new edit layer
762 if (newEditLayer != editLayer) {
763 if (newEditLayer == null) {
764 getCurrentDataSet().setSelected();
765 }
766
767 editLayer = newEditLayer;
768 fireEditLayerChanged(oldEditLayer, newEditLayer);
769 refreshTitle();
770 }
771
772 }
773
774 /**
775 * Sets the active layer to <code>layer</code>. If <code>layer</code> is an instance
776 * of {@link OsmDataLayer} also sets {@link #editLayer} to <code>layer</code>.
777 *
778 * @param layer the layer to be activate; must be one of the layers in the list of layers
779 * @throws IllegalArgumentException if layer is not in the lis of layers
780 */
781 public void setActiveLayer(Layer layer) {
782 setActiveLayer(layer, true);
783 }
784
785 private void setActiveLayer(Layer layer, boolean setEditLayer) {
786 if (layer != null && !layers.contains(layer))
787 throw new IllegalArgumentException(tr("Layer ''{0}'' must be in list of layers", layer.toString()));
788
789 if (layer == activeLayer)
790 return;
791
792 Layer old = activeLayer;
793 activeLayer = layer;
794 if (setEditLayer) {
795 setEditLayer(layers);
796 }
797 fireActiveLayerChanged(old, layer);
798
799 /* This only makes the buttons look disabled. Disabling the actions as well requires
800 * the user to re-select the tool after i.e. moving a layer. While testing I found
801 * that I switch layers and actions at the same time and it was annoying to mind the
802 * order. This way it works as visual clue for new users */
803 for (final AbstractButton b: Main.map.allMapModeButtons) {
804 MapMode mode = (MapMode)b.getAction();
805 if (mode.layerIsSupported(layer)) {
806 Main.registerActionShortcut(mode, mode.getShortcut()); //fix #6876
807 GuiHelper.runInEDTAndWait(new Runnable() {
808 @Override public void run() {
809 b.setEnabled(true);
810 }
811 });
812 } else {
813 Main.unregisterShortcut(mode.getShortcut());
814 GuiHelper.runInEDTAndWait(new Runnable() {
815 @Override public void run() {
816 b.setEnabled(false);
817 }
818 });
819 }
820 }
821 AudioPlayer.reset();
822 repaint();
823 }
824
825 /**
826 * Replies the currently active layer
827 *
828 * @return the currently active layer (may be null)
829 */
830 public Layer getActiveLayer() {
831 return activeLayer;
832 }
833
834 /**
835 * Replies the current edit layer, if any
836 *
837 * @return the current edit layer. May be null.
838 */
839 public OsmDataLayer getEditLayer() {
840 return editLayer;
841 }
842
843 /**
844 * replies true if the list of layers managed by this map view contain layer
845 *
846 * @param layer the layer
847 * @return true if the list of layers managed by this map view contain layer
848 */
849 public boolean hasLayer(Layer layer) {
850 return layers.contains(layer);
851 }
852
853 public boolean addTemporaryLayer(MapViewPaintable mvp) {
854 if (temporaryLayers.contains(mvp)) return false;
855 return temporaryLayers.add(mvp);
856 }
857
858 public boolean removeTemporaryLayer(MapViewPaintable mvp) {
859 return temporaryLayers.remove(mvp);
860 }
861
862 @Override
863 public void propertyChange(PropertyChangeEvent evt) {
864 if (evt.getPropertyName().equals(Layer.VISIBLE_PROP)) {
865 repaint();
866 } else if (evt.getPropertyName().equals(Layer.OPACITY_PROP)) {
867 Layer l = (Layer)evt.getSource();
868 if (l.isVisible()) {
869 changedLayer = l;
870 repaint();
871 }
872 } else if (evt.getPropertyName().equals(OsmDataLayer.REQUIRES_SAVE_TO_DISK_PROP)
873 || evt.getPropertyName().equals(OsmDataLayer.REQUIRES_UPLOAD_TO_SERVER_PROP)) {
874 OsmDataLayer layer = (OsmDataLayer)evt.getSource();
875 if (layer == getEditLayer()) {
876 refreshTitle();
877 }
878 }
879 }
880
881 protected void refreshTitle() {
882 if (Main.parent != null) {
883 boolean dirty = editLayer != null &&
884 (editLayer.requiresSaveToFile() || (editLayer.requiresUploadToServer() && !editLayer.isUploadDiscouraged()));
885 ((JFrame) Main.parent).setTitle((dirty ? "* " : "") + tr("Java OpenStreetMap Editor"));
886 ((JFrame) Main.parent).getRootPane().putClientProperty("Window.documentModified", dirty);
887 }
888 }
889
890 @Override
891 public void preferenceChanged(PreferenceChangeEvent e) {
892 synchronized (this) {
893 paintPreferencesChanged = true;
894 }
895 }
896
897 private transient SelectionChangedListener repaintSelectionChangedListener = new SelectionChangedListener(){
898 @Override
899 public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
900 repaint();
901 }
902 };
903
904 public void destroy() {
905 Main.pref.removePreferenceChangeListener(this);
906 DataSet.removeSelectionListener(repaintSelectionChangedListener);
907 MultipolygonCache.getInstance().clear(this);
908 if (mapMover != null) {
909 mapMover.destroy();
910 }
911 activeLayer = null;
912 changedLayer = null;
913 editLayer = null;
914 layers.clear();
915 nonChangedLayers.clear();
916 temporaryLayers.clear();
917 }
918
919 @Override
920 public void uploadDiscouragedChanged(OsmDataLayer layer, boolean newValue) {
921 if (layer == getEditLayer()) {
922 refreshTitle();
923 }
924 }
925
926 /**
927 * Get a string representation of all layers suitable for the {@code source} changeset tag.
928 */
929 public String getLayerInformationForSourceTag() {
930 final Collection<String> layerInfo = new ArrayList<>();
931 if (!getLayersOfType(GpxLayer.class).isEmpty()) {
932 // no i18n for international values
933 layerInfo.add("survey");
934 }
935 for (final GeoImageLayer i : getLayersOfType(GeoImageLayer.class)) {
936 layerInfo.add(i.getName());
937 }
938 for (final ImageryLayer i : getLayersOfType(ImageryLayer.class)) {
939 layerInfo.add(ImageryInfo.ImageryType.BING.equals(i.getInfo().getImageryType()) ? "Bing" : i.getName());
940 }
941 return Utils.join("; ", layerInfo);
942 }
943}
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