source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 17452

Last change on this file since 17452 was 17452, checked in by GerdP, 4 years ago

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1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.gui;
3
4import java.awt.AlphaComposite;
5import java.awt.Color;
6import java.awt.Dimension;
7import java.awt.Graphics;
8import java.awt.Graphics2D;
9import java.awt.Point;
10import java.awt.Rectangle;
11import java.awt.Shape;
12import java.awt.event.ComponentAdapter;
13import java.awt.event.ComponentEvent;
14import java.awt.event.KeyEvent;
15import java.awt.event.MouseAdapter;
16import java.awt.event.MouseEvent;
17import java.awt.event.MouseMotionListener;
18import java.awt.geom.AffineTransform;
19import java.awt.geom.Area;
20import java.awt.image.BufferedImage;
21import java.beans.PropertyChangeEvent;
22import java.beans.PropertyChangeListener;
23import java.util.ArrayList;
24import java.util.Arrays;
25import java.util.Collections;
26import java.util.HashMap;
27import java.util.IdentityHashMap;
28import java.util.LinkedHashSet;
29import java.util.List;
30import java.util.Set;
31import java.util.concurrent.CopyOnWriteArrayList;
32import java.util.concurrent.atomic.AtomicBoolean;
33import java.util.stream.Collectors;
34
35import javax.swing.AbstractButton;
36import javax.swing.JComponent;
37import javax.swing.SwingUtilities;
38
39import org.openstreetmap.josm.actions.mapmode.MapMode;
40import org.openstreetmap.josm.data.Bounds;
41import org.openstreetmap.josm.data.ProjectionBounds;
42import org.openstreetmap.josm.data.ViewportData;
43import org.openstreetmap.josm.data.coor.EastNorth;
44import org.openstreetmap.josm.data.osm.DataSelectionListener;
45import org.openstreetmap.josm.data.osm.event.SelectionEventManager;
46import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors;
47import org.openstreetmap.josm.data.osm.visitor.paint.Rendering;
48import org.openstreetmap.josm.data.osm.visitor.paint.relations.MultipolygonCache;
49import org.openstreetmap.josm.data.projection.ProjectionRegistry;
50import org.openstreetmap.josm.gui.MapViewState.MapViewRectangle;
51import org.openstreetmap.josm.gui.autofilter.AutoFilterManager;
52import org.openstreetmap.josm.gui.datatransfer.OsmTransferHandler;
53import org.openstreetmap.josm.gui.layer.Layer;
54import org.openstreetmap.josm.gui.layer.LayerManager;
55import org.openstreetmap.josm.gui.layer.LayerManager.LayerAddEvent;
56import org.openstreetmap.josm.gui.layer.LayerManager.LayerOrderChangeEvent;
57import org.openstreetmap.josm.gui.layer.LayerManager.LayerRemoveEvent;
58import org.openstreetmap.josm.gui.layer.MainLayerManager;
59import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeEvent;
60import org.openstreetmap.josm.gui.layer.MapViewGraphics;
61import org.openstreetmap.josm.gui.layer.MapViewPaintable;
62import org.openstreetmap.josm.gui.layer.MapViewPaintable.LayerPainter;
63import org.openstreetmap.josm.gui.layer.MapViewPaintable.MapViewEvent;
64import org.openstreetmap.josm.gui.layer.MapViewPaintable.PaintableInvalidationEvent;
65import org.openstreetmap.josm.gui.layer.MapViewPaintable.PaintableInvalidationListener;
66import org.openstreetmap.josm.gui.layer.OsmDataLayer;
67import org.openstreetmap.josm.gui.layer.markerlayer.PlayHeadMarker;
68import org.openstreetmap.josm.gui.mappaint.MapPaintStyles;
69import org.openstreetmap.josm.gui.mappaint.MapPaintStyles.MapPaintStylesUpdateListener;
70import org.openstreetmap.josm.gui.util.GuiHelper;
71import org.openstreetmap.josm.io.audio.AudioPlayer;
72import org.openstreetmap.josm.spi.preferences.Config;
73import org.openstreetmap.josm.spi.preferences.PreferenceChangeEvent;
74import org.openstreetmap.josm.spi.preferences.PreferenceChangedListener;
75import org.openstreetmap.josm.tools.JosmRuntimeException;
76import org.openstreetmap.josm.tools.Logging;
77import org.openstreetmap.josm.tools.Shortcut;
78import org.openstreetmap.josm.tools.bugreport.BugReport;
79
80/**
81 * This is a component used in the {@link MapFrame} for browsing the map. It use is to
82 * provide the MapMode's enough capabilities to operate.<br><br>
83 *
84 * {@code MapView} holds meta-data about the data set currently displayed, as scale level,
85 * center point viewed, what scrolling mode or editing mode is selected or with
86 * what projection the map is viewed etc..<br><br>
87 *
88 * {@code MapView} is able to administrate several layers.
89 *
90 * @author imi
91 */
92public class MapView extends NavigatableComponent
93implements PropertyChangeListener, PreferenceChangedListener,
94LayerManager.LayerChangeListener, MainLayerManager.ActiveLayerChangeListener {
95
96 static {
97 MapPaintStyles.addMapPaintStylesUpdateListener(new MapPaintStylesUpdateListener() {
98 @Override
99 public void mapPaintStylesUpdated() {
100 SwingUtilities.invokeLater(() ->
101 // Trigger a repaint of all data layers
102 MainApplication.getLayerManager().getLayers()
103 .stream()
104 .filter(layer -> layer instanceof OsmDataLayer)
105 .forEach(Layer::invalidate)
106 );
107 }
108
109 @Override
110 public void mapPaintStyleEntryUpdated(int index) {
111 mapPaintStylesUpdated();
112 }
113 });
114 }
115
116 /**
117 * An invalidation listener that simply calls repaint() for now.
118 * @author Michael Zangl
119 * @since 10271
120 */
121 private class LayerInvalidatedListener implements PaintableInvalidationListener {
122 private boolean ignoreRepaint;
123
124 private final Set<MapViewPaintable> invalidatedLayers = Collections.newSetFromMap(new IdentityHashMap<MapViewPaintable, Boolean>());
125
126 @Override
127 public void paintableInvalidated(PaintableInvalidationEvent event) {
128 invalidate(event.getLayer());
129 }
130
131 /**
132 * Invalidate contents and repaint map view
133 * @param mapViewPaintable invalidated layer
134 */
135 public synchronized void invalidate(MapViewPaintable mapViewPaintable) {
136 ignoreRepaint = true;
137 invalidatedLayers.add(mapViewPaintable);
138 repaint();
139 }
140
141 /**
142 * Temporary until all {@link MapViewPaintable}s support this.
143 * @param p The paintable.
144 */
145 public synchronized void addTo(MapViewPaintable p) {
146 p.addInvalidationListener(this);
147 }
148
149 /**
150 * Temporary until all {@link MapViewPaintable}s support this.
151 * @param p The paintable.
152 */
153 public synchronized void removeFrom(MapViewPaintable p) {
154 p.removeInvalidationListener(this);
155 invalidatedLayers.remove(p);
156 }
157
158 /**
159 * Attempts to trace repaints that did not originate from this listener. Good to find missed {@link MapView#repaint()}s in code.
160 */
161 protected synchronized void traceRandomRepaint() {
162 if (!ignoreRepaint) {
163 Logging.trace("Repaint: {0} from {1}", Thread.currentThread().getStackTrace()[3], Thread.currentThread());
164 }
165 ignoreRepaint = false;
166 }
167
168 /**
169 * Retrieves a set of all layers that have been marked as invalid since the last call to this method.
170 * @return The layers
171 */
172 protected synchronized Set<MapViewPaintable> collectInvalidatedLayers() {
173 Set<MapViewPaintable> layers = Collections.newSetFromMap(new IdentityHashMap<MapViewPaintable, Boolean>());
174 layers.addAll(invalidatedLayers);
175 invalidatedLayers.clear();
176 return layers;
177 }
178 }
179
180 /**
181 * A layer painter that issues a warning when being called.
182 * @author Michael Zangl
183 * @since 10474
184 */
185 private static class WarningLayerPainter implements LayerPainter {
186 boolean warningPrinted;
187 private final Layer layer;
188
189 WarningLayerPainter(Layer layer) {
190 this.layer = layer;
191 }
192
193 @Override
194 public void paint(MapViewGraphics graphics) {
195 if (!warningPrinted) {
196 Logging.debug("A layer triggered a repaint while being added: " + layer);
197 warningPrinted = true;
198 }
199 }
200
201 @Override
202 public void detachFromMapView(MapViewEvent event) {
203 // ignored
204 }
205 }
206
207 /**
208 * A list of all layers currently loaded. If we support multiple map views, this list may be different for each of them.
209 */
210 private final MainLayerManager layerManager;
211
212 /**
213 * The play head marker: there is only one of these so it isn't in any specific layer
214 */
215 public transient PlayHeadMarker playHeadMarker;
216
217 /**
218 * The last event performed by mouse.
219 */
220 public MouseEvent lastMEvent = new MouseEvent(this, 0, 0, 0, 0, 0, 0, false); // In case somebody reads it before first mouse move
221
222 /**
223 * Temporary layers (selection rectangle, etc.) that are never cached and
224 * drawn on top of regular layers.
225 * Access must be synchronized.
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 int lastViewID;
234 private final AtomicBoolean paintPreferencesChanged = new AtomicBoolean(true);
235 private Rectangle lastClipBounds = new Rectangle();
236 private transient MapMover mapMover;
237
238 /**
239 * The listener that listens to invalidations of all layers.
240 */
241 private final LayerInvalidatedListener invalidatedListener = new LayerInvalidatedListener();
242
243 /**
244 * This is a map of all Layers that have been added to this view.
245 */
246 private final HashMap<Layer, LayerPainter> registeredLayers = new HashMap<>();
247
248 /**
249 * Constructs a new {@code MapView}.
250 * @param layerManager The layers to display.
251 * @param viewportData the initial viewport of the map. Can be null, then
252 * the viewport is derived from the layer data.
253 * @since 11713
254 */
255 public MapView(MainLayerManager layerManager, final ViewportData viewportData) {
256 this.layerManager = layerManager;
257 initialViewport = viewportData;
258 layerManager.addAndFireLayerChangeListener(this);
259 layerManager.addActiveLayerChangeListener(this);
260 Config.getPref().addPreferenceChangeListener(this);
261
262 addComponentListener(new ComponentAdapter() {
263 @Override
264 public void componentResized(ComponentEvent e) {
265 removeComponentListener(this);
266 mapMover = new MapMover(MapView.this);
267 }
268 });
269
270 // listens to selection changes to redraw the map
271 SelectionEventManager.getInstance().addSelectionListenerForEdt(repaintSelectionChangedListener);
272
273 //store the last mouse action
274 this.addMouseMotionListener(new MouseMotionListener() {
275 @Override
276 public void mouseDragged(MouseEvent e) {
277 mouseMoved(e);
278 }
279
280 @Override
281 public void mouseMoved(MouseEvent e) {
282 lastMEvent = e;
283 }
284 });
285 this.addMouseListener(new MouseAdapter() {
286 @Override
287 public void mousePressed(MouseEvent me) {
288 // focus the MapView component when mouse is pressed inside it
289 requestFocus();
290 }
291 });
292
293 setFocusTraversalKeysEnabled(!Shortcut.findShortcut(KeyEvent.VK_TAB, 0).isPresent());
294
295 for (JComponent c : getMapNavigationComponents(this)) {
296 add(c);
297 }
298 if (AutoFilterManager.PROP_AUTO_FILTER_ENABLED.get()) {
299 AutoFilterManager.getInstance().enableAutoFilterRule(AutoFilterManager.PROP_AUTO_FILTER_RULE.get());
300 }
301 setTransferHandler(new OsmTransferHandler());
302 }
303
304 /**
305 * Adds the map navigation components to a
306 * @param forMapView The map view to get the components for.
307 * @return A list containing the correctly positioned map navigation components.
308 */
309 public static List<? extends JComponent> getMapNavigationComponents(MapView forMapView) {
310 MapSlider zoomSlider = new MapSlider(forMapView);
311 Dimension size = zoomSlider.getPreferredSize();
312 zoomSlider.setSize(size);
313 zoomSlider.setLocation(3, 0);
314 zoomSlider.setFocusTraversalKeysEnabled(!Shortcut.findShortcut(KeyEvent.VK_TAB, 0).isPresent());
315
316 MapScaler scaler = new MapScaler(forMapView);
317 scaler.setPreferredLineLength(size.width - 10);
318 scaler.setSize(scaler.getPreferredSize());
319 scaler.setLocation(3, size.height);
320
321 return Arrays.asList(zoomSlider, scaler);
322 }
323
324 // remebered geometry of the component
325 private Dimension oldSize;
326 private Point oldLoc;
327
328 /**
329 * Call this method to keep map position on screen during next repaint
330 */
331 public void rememberLastPositionOnScreen() {
332 oldSize = getSize();
333 oldLoc = getLocationOnScreen();
334 }
335
336 @Override
337 public void layerAdded(LayerAddEvent e) {
338 try {
339 Layer layer = e.getAddedLayer();
340 registeredLayers.put(layer, new WarningLayerPainter(layer));
341 // Layers may trigger a redraw during this call if they open dialogs.
342 LayerPainter painter = layer.attachToMapView(new MapViewEvent(this, false));
343 if (!registeredLayers.containsKey(layer)) {
344 // The layer may have removed itself during attachToMapView()
345 Logging.warn("Layer was removed during attachToMapView()");
346 } else {
347 registeredLayers.put(layer, painter);
348
349 if (e.isZoomRequired()) {
350 ProjectionBounds viewProjectionBounds = layer.getViewProjectionBounds();
351 if (viewProjectionBounds != null) {
352 scheduleZoomTo(new ViewportData(viewProjectionBounds));
353 }
354 }
355
356 layer.addPropertyChangeListener(this);
357 ProjectionRegistry.addProjectionChangeListener(layer);
358 invalidatedListener.addTo(layer);
359 AudioPlayer.reset();
360
361 repaint();
362 }
363 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException t) {
364 throw BugReport.intercept(t).put("layer", e.getAddedLayer());
365 }
366 }
367
368 /**
369 * Replies true if the active data layer (edit layer) is drawable.
370 *
371 * @return true if the active data layer (edit layer) is drawable, false otherwise
372 */
373 public boolean isActiveLayerDrawable() {
374 return layerManager.getEditLayer() != null;
375 }
376
377 /**
378 * Replies true if the active data layer is visible.
379 *
380 * @return true if the active data layer is visible, false otherwise
381 */
382 public boolean isActiveLayerVisible() {
383 OsmDataLayer e = layerManager.getActiveDataLayer();
384 return e != null && e.isVisible();
385 }
386
387 @Override
388 public void layerRemoving(LayerRemoveEvent e) {
389 Layer layer = e.getRemovedLayer();
390
391 LayerPainter painter = registeredLayers.remove(layer);
392 if (painter == null) {
393 Logging.error("The painter for layer " + layer + " was not registered.");
394 return;
395 }
396 painter.detachFromMapView(new MapViewEvent(this, false));
397 ProjectionRegistry.removeProjectionChangeListener(layer);
398 layer.removePropertyChangeListener(this);
399 invalidatedListener.removeFrom(layer);
400 if (layer == getNativeScaleLayer())
401 setNativeScaleLayer(null);
402 layer.destroy();
403 AudioPlayer.reset();
404
405 repaint();
406 }
407
408 private boolean virtualNodesEnabled;
409
410 /**
411 * Enables or disables drawing of the virtual nodes.
412 * @param enabled if virtual nodes are enabled
413 */
414 public void setVirtualNodesEnabled(boolean enabled) {
415 if (virtualNodesEnabled != enabled) {
416 virtualNodesEnabled = enabled;
417 repaint();
418 }
419 }
420
421 /**
422 * Checks if virtual nodes should be drawn. Default is <code>false</code>
423 * @return The virtual nodes property.
424 * @see Rendering#render
425 */
426 public boolean isVirtualNodesEnabled() {
427 return virtualNodesEnabled;
428 }
429
430 /**
431 * Moves the layer to the given new position. No event is fired, but repaints
432 * according to the new Z-Order of the layers.
433 *
434 * @param layer The layer to move
435 * @param pos The new position of the layer
436 */
437 public void moveLayer(Layer layer, int pos) {
438 layerManager.moveLayer(layer, pos);
439 }
440
441 @Override
442 public void layerOrderChanged(LayerOrderChangeEvent e) {
443 AudioPlayer.reset();
444 repaint();
445 }
446
447 /**
448 * Paints the given layer to the graphics object, using the current state of this map view.
449 * @param layer The layer to draw.
450 * @param g A graphics object. It should have the width and height of this component
451 * @throws IllegalArgumentException If the layer is not part of this map view.
452 * @since 11226
453 */
454 public void paintLayer(Layer layer, Graphics2D g) {
455 try {
456 LayerPainter painter = registeredLayers.get(layer);
457 if (painter == null) {
458 Logging.warn("Cannot paint layer, it is not registered: {0}", layer);
459 return;
460 }
461 MapViewRectangle clipBounds = getState().getViewArea(g.getClipBounds());
462 MapViewGraphics paintGraphics = new MapViewGraphics(this, g, clipBounds);
463 float opacity = (float) layer.getOpacity();
464
465 if (opacity < 1.0f) {
466 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity));
467 }
468 painter.paint(paintGraphics);
469 g.setPaintMode();
470 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException t) {
471 BugReport.intercept(t).put("layer", layer).warn();
472 }
473 }
474
475 /**
476 * Draw the component.
477 */
478 @Override
479 public void paint(Graphics g) {
480 try {
481 if (!prepareToDraw()) {
482 return;
483 }
484 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
485 BugReport.intercept(e).put("center", this::getCenter).warn();
486 return;
487 }
488
489 try {
490 drawMapContent((Graphics2D) g);
491 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
492 throw BugReport.intercept(e).put("visibleLayers", layerManager::getVisibleLayersInZOrder)
493 .put("temporaryLayers", temporaryLayers);
494 }
495 super.paint(g);
496 }
497
498 private void drawMapContent(Graphics2D g) {
499 // In HiDPI-mode, the Graphics g will have a transform that scales
500 // everything by a factor of 2.0 or so. At the same time, the value returned
501 // by getWidth()/getHeight will be reduced by that factor.
502 //
503 // This would work as intended, if we were to draw directly on g. But
504 // with a temporary buffer image, we need to move the scale transform to
505 // the Graphics of the buffer image and (in the end) transfer the content
506 // of the temporary buffer pixel by pixel onto g, without scaling.
507 // (Otherwise, we would upscale a small buffer image and the result would be
508 // blurry, with 2x2 pixel blocks.)
509 AffineTransform trOrig = g.getTransform();
510 double uiScaleX = g.getTransform().getScaleX();
511 double uiScaleY = g.getTransform().getScaleY();
512 // width/height in full-resolution screen pixels
513 int width = (int) Math.round(getWidth() * uiScaleX);
514 int height = (int) Math.round(getHeight() * uiScaleY);
515 // This transformation corresponds to the original transformation of g,
516 // except for the translation part. It will be applied to the temporary
517 // buffer images.
518 AffineTransform trDef = AffineTransform.getScaleInstance(uiScaleX, uiScaleY);
519 // The goal is to create the temporary image at full pixel resolution,
520 // so scale up the clip shape
521 Shape scaledClip = trDef.createTransformedShape(g.getClip());
522
523 List<Layer> visibleLayers = layerManager.getVisibleLayersInZOrder();
524
525 int nonChangedLayersCount = 0;
526 Set<MapViewPaintable> invalidated = invalidatedListener.collectInvalidatedLayers();
527 for (Layer l: visibleLayers) {
528 if (invalidated.contains(l)) {
529 break;
530 } else {
531 nonChangedLayersCount++;
532 }
533 }
534
535 boolean canUseBuffer = !paintPreferencesChanged.getAndSet(false)
536 && nonChangedLayers.size() <= nonChangedLayersCount
537 && lastViewID == getViewID()
538 && lastClipBounds.contains(g.getClipBounds())
539 && nonChangedLayers.equals(visibleLayers.subList(0, nonChangedLayers.size()));
540
541 if (null == offscreenBuffer || offscreenBuffer.getWidth() != width || offscreenBuffer.getHeight() != height) {
542 offscreenBuffer = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
543 }
544
545 if (!canUseBuffer || nonChangedLayersBuffer == null) {
546 if (null == nonChangedLayersBuffer
547 || nonChangedLayersBuffer.getWidth() != width || nonChangedLayersBuffer.getHeight() != height) {
548 nonChangedLayersBuffer = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
549 }
550 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
551 g2.setClip(scaledClip);
552 g2.setTransform(trDef);
553 g2.setColor(PaintColors.getBackgroundColor());
554 g2.fillRect(0, 0, width, height);
555
556 for (int i = 0; i < nonChangedLayersCount; i++) {
557 paintLayer(visibleLayers.get(i), g2);
558 }
559 } else {
560 // Maybe there were more unchanged layers then last time - draw them to buffer
561 if (nonChangedLayers.size() != nonChangedLayersCount) {
562 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
563 g2.setClip(scaledClip);
564 g2.setTransform(trDef);
565 for (int i = nonChangedLayers.size(); i < nonChangedLayersCount; i++) {
566 paintLayer(visibleLayers.get(i), g2);
567 }
568 }
569 }
570
571 nonChangedLayers.clear();
572 nonChangedLayers.addAll(visibleLayers.subList(0, nonChangedLayersCount));
573 lastViewID = getViewID();
574 lastClipBounds = g.getClipBounds();
575
576 Graphics2D tempG = offscreenBuffer.createGraphics();
577 tempG.setClip(scaledClip);
578 tempG.setTransform(new AffineTransform());
579 tempG.drawImage(nonChangedLayersBuffer, 0, 0, null);
580 tempG.setTransform(trDef);
581
582 for (int i = nonChangedLayersCount; i < visibleLayers.size(); i++) {
583 paintLayer(visibleLayers.get(i), tempG);
584 }
585
586 try {
587 drawTemporaryLayers(tempG, getLatLonBounds(new Rectangle(
588 (int) Math.round(g.getClipBounds().x * uiScaleX),
589 (int) Math.round(g.getClipBounds().y * uiScaleY))));
590 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
591 BugReport.intercept(e).put("temporaryLayers", temporaryLayers).warn();
592 }
593
594 // draw world borders
595 try {
596 drawWorldBorders(tempG);
597 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
598 // getProjection() needs to be inside lambda to catch errors.
599 BugReport.intercept(e).put("bounds", () -> getProjection().getWorldBoundsLatLon()).warn();
600 }
601
602 MapFrame map = MainApplication.getMap();
603 if (AutoFilterManager.getInstance().getCurrentAutoFilter() != null) {
604 AutoFilterManager.getInstance().drawOSDText(tempG);
605 } else if (MainApplication.isDisplayingMapView() && map.filterDialog != null) {
606 map.filterDialog.drawOSDText(tempG);
607 }
608
609 if (playHeadMarker != null) {
610 playHeadMarker.paint(tempG, this);
611 }
612
613 try {
614 g.setTransform(new AffineTransform(1, 0, 0, 1, trOrig.getTranslateX(), trOrig.getTranslateY()));
615 g.drawImage(offscreenBuffer, 0, 0, null);
616 } catch (ClassCastException e) {
617 // See #11002 and duplicate tickets. On Linux with Java >= 8 Many users face this error here:
618 //
619 // java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData cannot be cast to sun.java2d.xr.XRSurfaceData
620 // at sun.java2d.xr.XRPMBlitLoops.cacheToTmpSurface(XRPMBlitLoops.java:145)
621 // at sun.java2d.xr.XrSwToPMBlit.Blit(XRPMBlitLoops.java:353)
622 // at sun.java2d.pipe.DrawImage.blitSurfaceData(DrawImage.java:959)
623 // at sun.java2d.pipe.DrawImage.renderImageCopy(DrawImage.java:577)
624 // at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:67)
625 // at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:1014)
626 // at sun.java2d.pipe.ValidatePipe.copyImage(ValidatePipe.java:186)
627 // at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3318)
628 // at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3296)
629 // at org.openstreetmap.josm.gui.MapView.paint(MapView.java:834)
630 //
631 // It seems to be this JDK bug, but Oracle does not seem to be fixing it:
632 // https://bugs.openjdk.java.net/browse/JDK-7172749
633 //
634 // According to bug reports it can happen for a variety of reasons such as:
635 // - long period of time
636 // - change of screen resolution
637 // - addition/removal of a secondary monitor
638 //
639 // But the application seems to work fine after, so let's just log the error
640 Logging.error(e);
641 } finally {
642 g.setTransform(trOrig);
643 }
644 }
645
646 private void drawTemporaryLayers(Graphics2D tempG, Bounds box) {
647 synchronized (temporaryLayers) {
648 for (MapViewPaintable mvp : temporaryLayers) {
649 try {
650 mvp.paint(tempG, this, box);
651 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
652 throw BugReport.intercept(e).put("mvp", mvp);
653 }
654 }
655 }
656 }
657
658 private void drawWorldBorders(Graphics2D tempG) {
659 tempG.setColor(Color.WHITE);
660 Bounds b = getProjection().getWorldBoundsLatLon();
661
662 int w = getWidth();
663 int h = getHeight();
664
665 // Work around OpenJDK having problems when drawing out of bounds
666 final Area border = getState().getArea(b);
667 // Make the viewport 1px larger in every direction to prevent an
668 // additional 1px border when zooming in
669 final Area viewport = new Area(new Rectangle(-1, -1, w + 2, h + 2));
670 border.intersect(viewport);
671 tempG.draw(border);
672 }
673
674 /**
675 * Sets up the viewport to prepare for drawing the view.
676 * @return <code>true</code> if the view can be drawn, <code>false</code> otherwise.
677 */
678 public boolean prepareToDraw() {
679 updateLocationState();
680 if (initialViewport != null) {
681 zoomTo(initialViewport);
682 initialViewport = null;
683 }
684
685 EastNorth oldCenter = getCenter();
686 if (oldCenter == null)
687 return false; // no data loaded yet.
688
689 // if the position was remembered, we need to adjust center once before repainting
690 if (oldLoc != null && oldSize != null) {
691 Point l1 = getLocationOnScreen();
692 final EastNorth newCenter = new EastNorth(
693 oldCenter.getX()+ (l1.x-oldLoc.x - (oldSize.width-getWidth())/2.0)*getScale(),
694 oldCenter.getY()+ (oldLoc.y-l1.y + (oldSize.height-getHeight())/2.0)*getScale()
695 );
696 oldLoc = null; oldSize = null;
697 zoomTo(newCenter);
698 }
699
700 return true;
701 }
702
703 @Override
704 public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) {
705 MapFrame map = MainApplication.getMap();
706 if (map != null) {
707 /* This only makes the buttons look disabled. Disabling the actions as well requires
708 * the user to re-select the tool after i.e. moving a layer. While testing I found
709 * that I switch layers and actions at the same time and it was annoying to mind the
710 * order. This way it works as visual clue for new users */
711 // FIXME: This does not belong here.
712 for (final AbstractButton b: map.allMapModeButtons) {
713 MapMode mode = (MapMode) b.getAction();
714 final boolean activeLayerSupported = mode.layerIsSupported(layerManager.getActiveLayer());
715 if (activeLayerSupported) {
716 MainApplication.registerActionShortcut(mode, mode.getShortcut()); //fix #6876
717 } else {
718 MainApplication.unregisterShortcut(mode.getShortcut());
719 }
720 b.setEnabled(activeLayerSupported);
721 }
722 }
723 // invalidate repaint cache. The layer order may have changed by this, so we invalidate every layer
724 getLayerManager().getLayers().forEach(invalidatedListener::invalidate);
725 AudioPlayer.reset();
726 }
727
728 /**
729 * Adds a new temporary layer.
730 * <p>
731 * A temporary layer is a layer that is painted above all normal layers. Layers are painted in the order they are added.
732 *
733 * @param mvp The layer to paint.
734 * @return <code>true</code> if the layer was added.
735 */
736 public boolean addTemporaryLayer(MapViewPaintable mvp) {
737 synchronized (temporaryLayers) {
738 boolean added = temporaryLayers.add(mvp);
739 if (added) {
740 invalidatedListener.addTo(mvp);
741 }
742 repaint();
743 return added;
744 }
745 }
746
747 /**
748 * Removes a layer previously added as temporary layer.
749 * @param mvp The layer to remove.
750 * @return <code>true</code> if that layer was removed.
751 */
752 public boolean removeTemporaryLayer(MapViewPaintable mvp) {
753 synchronized (temporaryLayers) {
754 boolean removed = temporaryLayers.remove(mvp);
755 if (removed) {
756 invalidatedListener.removeFrom(mvp);
757 }
758 repaint();
759 return removed;
760 }
761 }
762
763 /**
764 * Gets a list of temporary layers.
765 * @return The layers in the order they are added.
766 */
767 public List<MapViewPaintable> getTemporaryLayers() {
768 synchronized (temporaryLayers) {
769 return Collections.unmodifiableList(new ArrayList<>(temporaryLayers));
770 }
771 }
772
773 @Override
774 public void propertyChange(PropertyChangeEvent evt) {
775 if (evt.getPropertyName().equals(Layer.VISIBLE_PROP)) {
776 repaint();
777 } else if (evt.getPropertyName().equals(Layer.OPACITY_PROP) ||
778 evt.getPropertyName().equals(Layer.FILTER_STATE_PROP)) {
779 Layer l = (Layer) evt.getSource();
780 if (l.isVisible()) {
781 invalidatedListener.invalidate(l);
782 }
783 }
784 }
785
786 @Override
787 public void preferenceChanged(PreferenceChangeEvent e) {
788 paintPreferencesChanged.set(true);
789 }
790
791 private final transient DataSelectionListener repaintSelectionChangedListener = event -> repaint();
792
793 /**
794 * Destroy this map view panel. Should be called once when it is not needed any more.
795 */
796 public void destroy() {
797 layerManager.removeAndFireLayerChangeListener(this);
798 layerManager.removeActiveLayerChangeListener(this);
799 Config.getPref().removePreferenceChangeListener(this);
800 SelectionEventManager.getInstance().removeSelectionListener(repaintSelectionChangedListener);
801 MultipolygonCache.getInstance().clear();
802 if (mapMover != null) {
803 mapMover.destroy();
804 }
805 nonChangedLayers.clear();
806 synchronized (temporaryLayers) {
807 temporaryLayers.clear();
808 }
809 nonChangedLayersBuffer = null;
810 offscreenBuffer = null;
811 setTransferHandler(null);
812 GuiHelper.destroyComponents(this, false);
813 }
814
815 /**
816 * Get a string representation of all layers suitable for the {@code source} changeset tag.
817 * @return A String of sources separated by ';'
818 */
819 public String getLayerInformationForSourceTag() {
820 return layerManager.getVisibleLayersInZOrder().stream()
821 .filter(layer -> layer.getChangesetSourceTag() != null && !layer.getChangesetSourceTag().trim().isEmpty())
822 .map(layer -> layer.getChangesetSourceTag().trim())
823 .distinct()
824 .collect(Collectors.joining("; "));
825 }
826
827 /**
828 * This is a listener that gets informed whenever repaint is called for this MapView.
829 * <p>
830 * This is the only safe method to find changes to the map view, since many components call MapView.repaint() directly.
831 * @author Michael Zangl
832 * @since 10600 (functional interface)
833 */
834 @FunctionalInterface
835 public interface RepaintListener {
836 /**
837 * Called when any repaint method is called (using default arguments if required).
838 * @param tm see {@link JComponent#repaint(long, int, int, int, int)}
839 * @param x see {@link JComponent#repaint(long, int, int, int, int)}
840 * @param y see {@link JComponent#repaint(long, int, int, int, int)}
841 * @param width see {@link JComponent#repaint(long, int, int, int, int)}
842 * @param height see {@link JComponent#repaint(long, int, int, int, int)}
843 */
844 void repaint(long tm, int x, int y, int width, int height);
845 }
846
847 private final transient CopyOnWriteArrayList<RepaintListener> repaintListeners = new CopyOnWriteArrayList<>();
848
849 /**
850 * Adds a listener that gets informed whenever repaint() is called for this class.
851 * @param l The listener.
852 */
853 public void addRepaintListener(RepaintListener l) {
854 repaintListeners.add(l);
855 }
856
857 /**
858 * Removes a registered repaint listener.
859 * @param l The listener.
860 */
861 public void removeRepaintListener(RepaintListener l) {
862 repaintListeners.remove(l);
863 }
864
865 @Override
866 public void repaint(long tm, int x, int y, int width, int height) {
867 // This is the main repaint method, all other methods are convenience methods and simply call this method.
868 // This is just an observation, not a must, but seems to be true for all implementations I found so far.
869 if (repaintListeners != null) {
870 // Might get called early in super constructor
871 for (RepaintListener l : repaintListeners) {
872 l.repaint(tm, x, y, width, height);
873 }
874 }
875 super.repaint(tm, x, y, width, height);
876 }
877
878 @Override
879 public void repaint() {
880 if (Logging.isTraceEnabled()) {
881 invalidatedListener.traceRandomRepaint();
882 }
883 super.repaint();
884 }
885
886 /**
887 * Returns the layer manager.
888 * @return the layer manager
889 * @since 10282
890 */
891 public final MainLayerManager getLayerManager() {
892 return layerManager;
893 }
894
895 /**
896 * Schedule a zoom to the given position on the next redraw.
897 * Temporary, may be removed without warning.
898 * @param viewportData the viewport to zoom to
899 * @since 10394
900 */
901 public void scheduleZoomTo(ViewportData viewportData) {
902 initialViewport = viewportData;
903 }
904
905 /**
906 * Returns the internal {@link MapMover}.
907 * @return the internal {@code MapMover}
908 * @since 13126
909 */
910 public final MapMover getMapMover() {
911 return mapMover;
912 }
913}
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