source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 15567

Last change on this file since 15567 was 15371, checked in by Don-vip, 5 years ago

fix #18160 - Ask layers for source, don't hardcode source for layer types (patch by taylor.smock)
  • Property svn:eol-style set to native
File size: 35.3 KB
Line 
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.MapPaintSylesUpdateListener;
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.Utils;
79import org.openstreetmap.josm.tools.bugreport.BugReport;
80
81/**
82 * This is a component used in the {@link MapFrame} for browsing the map. It use is to
83 * provide the MapMode's enough capabilities to operate.<br><br>
84 *
85 * {@code MapView} holds meta-data about the data set currently displayed, as scale level,
86 * center point viewed, what scrolling mode or editing mode is selected or with
87 * what projection the map is viewed etc..<br><br>
88 *
89 * {@code MapView} is able to administrate several layers.
90 *
91 * @author imi
92 */
93public class MapView extends NavigatableComponent
94implements PropertyChangeListener, PreferenceChangedListener,
95LayerManager.LayerChangeListener, MainLayerManager.ActiveLayerChangeListener {
96
97 static {
98 MapPaintStyles.addMapPaintSylesUpdateListener(new MapPaintSylesUpdateListener() {
99 @Override
100 public void mapPaintStylesUpdated() {
101 SwingUtilities.invokeLater(() ->
102 // Trigger a repaint of all data layers
103 MainApplication.getLayerManager().getLayers()
104 .stream()
105 .filter(layer -> layer instanceof OsmDataLayer)
106 .forEach(Layer::invalidate)
107 );
108 }
109
110 @Override
111 public void mapPaintStyleEntryUpdated(int index) {
112 mapPaintStylesUpdated();
113 }
114 });
115 }
116
117 /**
118 * An invalidation listener that simply calls repaint() for now.
119 * @author Michael Zangl
120 * @since 10271
121 */
122 private class LayerInvalidatedListener implements PaintableInvalidationListener {
123 private boolean ignoreRepaint;
124
125 private final Set<MapViewPaintable> invalidatedLayers = Collections.newSetFromMap(new IdentityHashMap<MapViewPaintable, Boolean>());
126
127 @Override
128 public void paintableInvalidated(PaintableInvalidationEvent event) {
129 invalidate(event.getLayer());
130 }
131
132 /**
133 * Invalidate contents and repaint map view
134 * @param mapViewPaintable invalidated layer
135 */
136 public synchronized void invalidate(MapViewPaintable mapViewPaintable) {
137 ignoreRepaint = true;
138 invalidatedLayers.add(mapViewPaintable);
139 repaint();
140 }
141
142 /**
143 * Temporary until all {@link MapViewPaintable}s support this.
144 * @param p The paintable.
145 */
146 public synchronized void addTo(MapViewPaintable p) {
147 p.addInvalidationListener(this);
148 }
149
150 /**
151 * Temporary until all {@link MapViewPaintable}s support this.
152 * @param p The paintable.
153 */
154 public synchronized void removeFrom(MapViewPaintable p) {
155 p.removeInvalidationListener(this);
156 invalidatedLayers.remove(p);
157 }
158
159 /**
160 * Attempts to trace repaints that did not originate from this listener. Good to find missed {@link MapView#repaint()}s in code.
161 */
162 protected synchronized void traceRandomRepaint() {
163 if (!ignoreRepaint) {
164 Logging.trace("Repaint: {0} from {1}", Thread.currentThread().getStackTrace()[3], Thread.currentThread());
165 }
166 ignoreRepaint = false;
167 }
168
169 /**
170 * Retrieves a set of all layers that have been marked as invalid since the last call to this method.
171 * @return The layers
172 */
173 protected synchronized Set<MapViewPaintable> collectInvalidatedLayers() {
174 Set<MapViewPaintable> layers = Collections.newSetFromMap(new IdentityHashMap<MapViewPaintable, Boolean>());
175 layers.addAll(invalidatedLayers);
176 invalidatedLayers.clear();
177 return layers;
178 }
179 }
180
181 /**
182 * A layer painter that issues a warning when being called.
183 * @author Michael Zangl
184 * @since 10474
185 */
186 private static class WarningLayerPainter implements LayerPainter {
187 boolean warningPrinted;
188 private final Layer layer;
189
190 WarningLayerPainter(Layer layer) {
191 this.layer = layer;
192 }
193
194 @Override
195 public void paint(MapViewGraphics graphics) {
196 if (!warningPrinted) {
197 Logging.debug("A layer triggered a repaint while being added: " + layer);
198 warningPrinted = true;
199 }
200 }
201
202 @Override
203 public void detachFromMapView(MapViewEvent event) {
204 // ignored
205 }
206 }
207
208 /**
209 * A list of all layers currently loaded. If we support multiple map views, this list may be different for each of them.
210 */
211 private final MainLayerManager layerManager;
212
213 /**
214 * The play head marker: there is only one of these so it isn't in any specific layer
215 */
216 public transient PlayHeadMarker playHeadMarker;
217
218 /**
219 * The last event performed by mouse.
220 */
221 public MouseEvent lastMEvent = new MouseEvent(this, 0, 0, 0, 0, 0, 0, false); // In case somebody reads it before first mouse move
222
223 /**
224 * Temporary layers (selection rectangle, etc.) that are never cached and
225 * drawn on top of regular layers.
226 * Access must be synchronized.
227 */
228 private final transient Set<MapViewPaintable> temporaryLayers = new LinkedHashSet<>();
229
230 private transient BufferedImage nonChangedLayersBuffer;
231 private transient BufferedImage offscreenBuffer;
232 // Layers that wasn't changed since last paint
233 private final transient List<Layer> nonChangedLayers = new ArrayList<>();
234 private int lastViewID;
235 private final AtomicBoolean paintPreferencesChanged = new AtomicBoolean(true);
236 private Rectangle lastClipBounds = new Rectangle();
237 private transient MapMover mapMover;
238
239 /**
240 * The listener that listens to invalidations of all layers.
241 */
242 private final LayerInvalidatedListener invalidatedListener = new LayerInvalidatedListener();
243
244 /**
245 * This is a map of all Layers that have been added to this view.
246 */
247 private final HashMap<Layer, LayerPainter> registeredLayers = new HashMap<>();
248
249 /**
250 * Constructs a new {@code MapView}.
251 * @param layerManager The layers to display.
252 * @param viewportData the initial viewport of the map. Can be null, then
253 * the viewport is derived from the layer data.
254 * @since 11713
255 */
256 public MapView(MainLayerManager layerManager, final ViewportData viewportData) {
257 this.layerManager = layerManager;
258 initialViewport = viewportData;
259 layerManager.addAndFireLayerChangeListener(this);
260 layerManager.addActiveLayerChangeListener(this);
261 Config.getPref().addPreferenceChangeListener(this);
262
263 addComponentListener(new ComponentAdapter() {
264 @Override
265 public void componentResized(ComponentEvent e) {
266 removeComponentListener(this);
267 mapMover = new MapMover(MapView.this);
268 }
269 });
270
271 // listens to selection changes to redraw the map
272 SelectionEventManager.getInstance().addSelectionListenerForEdt(repaintSelectionChangedListener);
273
274 //store the last mouse action
275 this.addMouseMotionListener(new MouseMotionListener() {
276 @Override
277 public void mouseDragged(MouseEvent e) {
278 mouseMoved(e);
279 }
280
281 @Override
282 public void mouseMoved(MouseEvent e) {
283 lastMEvent = e;
284 }
285 });
286 this.addMouseListener(new MouseAdapter() {
287 @Override
288 public void mousePressed(MouseEvent me) {
289 // focus the MapView component when mouse is pressed inside it
290 requestFocus();
291 }
292 });
293
294 setFocusTraversalKeysEnabled(!Shortcut.findShortcut(KeyEvent.VK_TAB, 0).isPresent());
295
296 for (JComponent c : getMapNavigationComponents(this)) {
297 add(c);
298 }
299 if (AutoFilterManager.PROP_AUTO_FILTER_ENABLED.get()) {
300 AutoFilterManager.getInstance().enableAutoFilterRule(AutoFilterManager.PROP_AUTO_FILTER_RULE.get());
301 }
302 setTransferHandler(new OsmTransferHandler());
303 }
304
305 /**
306 * Adds the map navigation components to a
307 * @param forMapView The map view to get the components for.
308 * @return A list containing the correctly positioned map navigation components.
309 */
310 public static List<? extends JComponent> getMapNavigationComponents(MapView forMapView) {
311 MapSlider zoomSlider = new MapSlider(forMapView);
312 Dimension size = zoomSlider.getPreferredSize();
313 zoomSlider.setSize(size);
314 zoomSlider.setLocation(3, 0);
315 zoomSlider.setFocusTraversalKeysEnabled(!Shortcut.findShortcut(KeyEvent.VK_TAB, 0).isPresent());
316
317 MapScaler scaler = new MapScaler(forMapView);
318 scaler.setPreferredLineLength(size.width - 10);
319 scaler.setSize(scaler.getPreferredSize());
320 scaler.setLocation(3, size.height);
321
322 return Arrays.asList(zoomSlider, scaler);
323 }
324
325 // remebered geometry of the component
326 private Dimension oldSize;
327 private Point oldLoc;
328
329 /**
330 * Call this method to keep map position on screen during next repaint
331 */
332 public void rememberLastPositionOnScreen() {
333 oldSize = getSize();
334 oldLoc = getLocationOnScreen();
335 }
336
337 @Override
338 public void layerAdded(LayerAddEvent e) {
339 try {
340 Layer layer = e.getAddedLayer();
341 registeredLayers.put(layer, new WarningLayerPainter(layer));
342 // Layers may trigger a redraw during this call if they open dialogs.
343 LayerPainter painter = layer.attachToMapView(new MapViewEvent(this, false));
344 if (!registeredLayers.containsKey(layer)) {
345 // The layer may have removed itself during attachToMapView()
346 Logging.warn("Layer was removed during attachToMapView()");
347 } else {
348 registeredLayers.put(layer, painter);
349
350 if (e.isZoomRequired()) {
351 ProjectionBounds viewProjectionBounds = layer.getViewProjectionBounds();
352 if (viewProjectionBounds != null) {
353 scheduleZoomTo(new ViewportData(viewProjectionBounds));
354 }
355 }
356
357 layer.addPropertyChangeListener(this);
358 ProjectionRegistry.addProjectionChangeListener(layer);
359 invalidatedListener.addTo(layer);
360 AudioPlayer.reset();
361
362 repaint();
363 }
364 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException t) {
365 throw BugReport.intercept(t).put("layer", e.getAddedLayer());
366 }
367 }
368
369 /**
370 * Replies true if the active data layer (edit layer) is drawable.
371 *
372 * @return true if the active data layer (edit layer) is drawable, false otherwise
373 */
374 public boolean isActiveLayerDrawable() {
375 return layerManager.getEditLayer() != null;
376 }
377
378 /**
379 * Replies true if the active data layer is visible.
380 *
381 * @return true if the active data layer is visible, false otherwise
382 */
383 public boolean isActiveLayerVisible() {
384 OsmDataLayer e = layerManager.getActiveDataLayer();
385 return e != null && e.isVisible();
386 }
387
388 @Override
389 public void layerRemoving(LayerRemoveEvent e) {
390 Layer layer = e.getRemovedLayer();
391
392 LayerPainter painter = registeredLayers.remove(layer);
393 if (painter == null) {
394 Logging.error("The painter for layer " + layer + " was not registered.");
395 return;
396 }
397 painter.detachFromMapView(new MapViewEvent(this, false));
398 ProjectionRegistry.removeProjectionChangeListener(layer);
399 layer.removePropertyChangeListener(this);
400 invalidatedListener.removeFrom(layer);
401 layer.destroy();
402 AudioPlayer.reset();
403
404 repaint();
405 }
406
407 private boolean virtualNodesEnabled;
408
409 /**
410 * Enables or disables drawing of the virtual nodes.
411 * @param enabled if virtual nodes are enabled
412 */
413 public void setVirtualNodesEnabled(boolean enabled) {
414 if (virtualNodesEnabled != enabled) {
415 virtualNodesEnabled = enabled;
416 repaint();
417 }
418 }
419
420 /**
421 * Checks if virtual nodes should be drawn. Default is <code>false</code>
422 * @return The virtual nodes property.
423 * @see Rendering#render
424 */
425 public boolean isVirtualNodesEnabled() {
426 return virtualNodesEnabled;
427 }
428
429 /**
430 * Moves the layer to the given new position. No event is fired, but repaints
431 * according to the new Z-Order of the layers.
432 *
433 * @param layer The layer to move
434 * @param pos The new position of the layer
435 */
436 public void moveLayer(Layer layer, int pos) {
437 layerManager.moveLayer(layer, pos);
438 }
439
440 @Override
441 public void layerOrderChanged(LayerOrderChangeEvent e) {
442 AudioPlayer.reset();
443 repaint();
444 }
445
446 /**
447 * Paints the given layer to the graphics object, using the current state of this map view.
448 * @param layer The layer to draw.
449 * @param g A graphics object. It should have the width and height of this component
450 * @throws IllegalArgumentException If the layer is not part of this map view.
451 * @since 11226
452 */
453 public void paintLayer(Layer layer, Graphics2D g) {
454 try {
455 LayerPainter painter = registeredLayers.get(layer);
456 if (painter == null) {
457 Logging.warn("Cannot paint layer, it is not registered: {0}", layer);
458 return;
459 }
460 MapViewRectangle clipBounds = getState().getViewArea(g.getClipBounds());
461 MapViewGraphics paintGraphics = new MapViewGraphics(this, g, clipBounds);
462
463 if (layer.getOpacity() < 1) {
464 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float) layer.getOpacity()));
465 }
466 painter.paint(paintGraphics);
467 g.setPaintMode();
468 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException t) {
469 BugReport.intercept(t).put("layer", layer).warn();
470 }
471 }
472
473 /**
474 * Draw the component.
475 */
476 @Override
477 public void paint(Graphics g) {
478 try {
479 if (!prepareToDraw()) {
480 return;
481 }
482 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
483 BugReport.intercept(e).put("center", this::getCenter).warn();
484 return;
485 }
486
487 try {
488 drawMapContent((Graphics2D) g);
489 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
490 throw BugReport.intercept(e).put("visibleLayers", layerManager::getVisibleLayersInZOrder)
491 .put("temporaryLayers", temporaryLayers);
492 }
493 super.paint(g);
494 }
495
496 private void drawMapContent(Graphics2D g) {
497 // In HiDPI-mode, the Graphics g will have a transform that scales
498 // everything by a factor of 2.0 or so. At the same time, the value returned
499 // by getWidth()/getHeight will be reduced by that factor.
500 //
501 // This would work as intended, if we were to draw directly on g. But
502 // with a temporary buffer image, we need to move the scale transform to
503 // the Graphics of the buffer image and (in the end) transfer the content
504 // of the temporary buffer pixel by pixel onto g, without scaling.
505 // (Otherwise, we would upscale a small buffer image and the result would be
506 // blurry, with 2x2 pixel blocks.)
507 AffineTransform trOrig = g.getTransform();
508 double uiScaleX = g.getTransform().getScaleX();
509 double uiScaleY = g.getTransform().getScaleY();
510 // width/height in full-resolution screen pixels
511 int width = (int) Math.round(getWidth() * uiScaleX);
512 int height = (int) Math.round(getHeight() * uiScaleY);
513 // This transformation corresponds to the original transformation of g,
514 // except for the translation part. It will be applied to the temporary
515 // buffer images.
516 AffineTransform trDef = AffineTransform.getScaleInstance(uiScaleX, uiScaleY);
517 // The goal is to create the temporary image at full pixel resolution,
518 // so scale up the clip shape
519 Shape scaledClip = trDef.createTransformedShape(g.getClip());
520
521 List<Layer> visibleLayers = layerManager.getVisibleLayersInZOrder();
522
523 int nonChangedLayersCount = 0;
524 Set<MapViewPaintable> invalidated = invalidatedListener.collectInvalidatedLayers();
525 for (Layer l: visibleLayers) {
526 if (invalidated.contains(l)) {
527 break;
528 } else {
529 nonChangedLayersCount++;
530 }
531 }
532
533 boolean canUseBuffer = !paintPreferencesChanged.getAndSet(false)
534 && nonChangedLayers.size() <= nonChangedLayersCount
535 && lastViewID == getViewID()
536 && lastClipBounds.contains(g.getClipBounds())
537 && nonChangedLayers.equals(visibleLayers.subList(0, nonChangedLayers.size()));
538
539 if (null == offscreenBuffer || offscreenBuffer.getWidth() != width || offscreenBuffer.getHeight() != height) {
540 offscreenBuffer = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
541 }
542
543 if (!canUseBuffer || nonChangedLayersBuffer == null) {
544 if (null == nonChangedLayersBuffer
545 || nonChangedLayersBuffer.getWidth() != width || nonChangedLayersBuffer.getHeight() != height) {
546 nonChangedLayersBuffer = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
547 }
548 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
549 g2.setClip(scaledClip);
550 g2.setTransform(trDef);
551 g2.setColor(PaintColors.getBackgroundColor());
552 g2.fillRect(0, 0, width, height);
553
554 for (int i = 0; i < nonChangedLayersCount; i++) {
555 paintLayer(visibleLayers.get(i), g2);
556 }
557 } else {
558 // Maybe there were more unchanged layers then last time - draw them to buffer
559 if (nonChangedLayers.size() != nonChangedLayersCount) {
560 Graphics2D g2 = nonChangedLayersBuffer.createGraphics();
561 g2.setClip(scaledClip);
562 g2.setTransform(trDef);
563 for (int i = nonChangedLayers.size(); i < nonChangedLayersCount; i++) {
564 paintLayer(visibleLayers.get(i), g2);
565 }
566 }
567 }
568
569 nonChangedLayers.clear();
570 nonChangedLayers.addAll(visibleLayers.subList(0, nonChangedLayersCount));
571 lastViewID = getViewID();
572 lastClipBounds = g.getClipBounds();
573
574 Graphics2D tempG = offscreenBuffer.createGraphics();
575 tempG.setClip(scaledClip);
576 tempG.setTransform(new AffineTransform());
577 tempG.drawImage(nonChangedLayersBuffer, 0, 0, null);
578 tempG.setTransform(trDef);
579
580 for (int i = nonChangedLayersCount; i < visibleLayers.size(); i++) {
581 paintLayer(visibleLayers.get(i), tempG);
582 }
583
584 try {
585 drawTemporaryLayers(tempG, getLatLonBounds(new Rectangle(
586 (int) Math.round(g.getClipBounds().x * uiScaleX),
587 (int) Math.round(g.getClipBounds().y * uiScaleY))));
588 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
589 BugReport.intercept(e).put("temporaryLayers", temporaryLayers).warn();
590 }
591
592 // draw world borders
593 try {
594 drawWorldBorders(tempG);
595 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
596 // getProjection() needs to be inside lambda to catch errors.
597 BugReport.intercept(e).put("bounds", () -> getProjection().getWorldBoundsLatLon()).warn();
598 }
599
600 MapFrame map = MainApplication.getMap();
601 if (AutoFilterManager.getInstance().getCurrentAutoFilter() != null) {
602 AutoFilterManager.getInstance().drawOSDText(tempG);
603 } else if (MainApplication.isDisplayingMapView() && map.filterDialog != null) {
604 map.filterDialog.drawOSDText(tempG);
605 }
606
607 if (playHeadMarker != null) {
608 playHeadMarker.paint(tempG, this);
609 }
610
611 try {
612 g.setTransform(new AffineTransform(1, 0, 0, 1, trOrig.getTranslateX(), trOrig.getTranslateY()));
613 g.drawImage(offscreenBuffer, 0, 0, null);
614 } catch (ClassCastException e) {
615 // See #11002 and duplicate tickets. On Linux with Java >= 8 Many users face this error here:
616 //
617 // java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData cannot be cast to sun.java2d.xr.XRSurfaceData
618 // at sun.java2d.xr.XRPMBlitLoops.cacheToTmpSurface(XRPMBlitLoops.java:145)
619 // at sun.java2d.xr.XrSwToPMBlit.Blit(XRPMBlitLoops.java:353)
620 // at sun.java2d.pipe.DrawImage.blitSurfaceData(DrawImage.java:959)
621 // at sun.java2d.pipe.DrawImage.renderImageCopy(DrawImage.java:577)
622 // at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:67)
623 // at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:1014)
624 // at sun.java2d.pipe.ValidatePipe.copyImage(ValidatePipe.java:186)
625 // at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3318)
626 // at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3296)
627 // at org.openstreetmap.josm.gui.MapView.paint(MapView.java:834)
628 //
629 // It seems to be this JDK bug, but Oracle does not seem to be fixing it:
630 // https://bugs.openjdk.java.net/browse/JDK-7172749
631 //
632 // According to bug reports it can happen for a variety of reasons such as:
633 // - long period of time
634 // - change of screen resolution
635 // - addition/removal of a secondary monitor
636 //
637 // But the application seems to work fine after, so let's just log the error
638 Logging.error(e);
639 } finally {
640 g.setTransform(trOrig);
641 }
642 }
643
644 private void drawTemporaryLayers(Graphics2D tempG, Bounds box) {
645 synchronized (temporaryLayers) {
646 for (MapViewPaintable mvp : temporaryLayers) {
647 try {
648 mvp.paint(tempG, this, box);
649 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
650 throw BugReport.intercept(e).put("mvp", mvp);
651 }
652 }
653 }
654 }
655
656 private void drawWorldBorders(Graphics2D tempG) {
657 tempG.setColor(Color.WHITE);
658 Bounds b = getProjection().getWorldBoundsLatLon();
659
660 int w = getWidth();
661 int h = getHeight();
662
663 // Work around OpenJDK having problems when drawing out of bounds
664 final Area border = getState().getArea(b);
665 // Make the viewport 1px larger in every direction to prevent an
666 // additional 1px border when zooming in
667 final Area viewport = new Area(new Rectangle(-1, -1, w + 2, h + 2));
668 border.intersect(viewport);
669 tempG.draw(border);
670 }
671
672 /**
673 * Sets up the viewport to prepare for drawing the view.
674 * @return <code>true</code> if the view can be drawn, <code>false</code> otherwise.
675 */
676 public boolean prepareToDraw() {
677 updateLocationState();
678 if (initialViewport != null) {
679 zoomTo(initialViewport);
680 initialViewport = null;
681 }
682
683 EastNorth oldCenter = getCenter();
684 if (oldCenter == null)
685 return false; // no data loaded yet.
686
687 // if the position was remembered, we need to adjust center once before repainting
688 if (oldLoc != null && oldSize != null) {
689 Point l1 = getLocationOnScreen();
690 final EastNorth newCenter = new EastNorth(
691 oldCenter.getX()+ (l1.x-oldLoc.x - (oldSize.width-getWidth())/2.0)*getScale(),
692 oldCenter.getY()+ (oldLoc.y-l1.y + (oldSize.height-getHeight())/2.0)*getScale()
693 );
694 oldLoc = null; oldSize = null;
695 zoomTo(newCenter);
696 }
697
698 return true;
699 }
700
701 @Override
702 public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) {
703 MapFrame map = MainApplication.getMap();
704 if (map != null) {
705 /* This only makes the buttons look disabled. Disabling the actions as well requires
706 * the user to re-select the tool after i.e. moving a layer. While testing I found
707 * that I switch layers and actions at the same time and it was annoying to mind the
708 * order. This way it works as visual clue for new users */
709 // FIXME: This does not belong here.
710 for (final AbstractButton b: map.allMapModeButtons) {
711 MapMode mode = (MapMode) b.getAction();
712 final boolean activeLayerSupported = mode.layerIsSupported(layerManager.getActiveLayer());
713 if (activeLayerSupported) {
714 MainApplication.registerActionShortcut(mode, mode.getShortcut()); //fix #6876
715 } else {
716 MainApplication.unregisterShortcut(mode.getShortcut());
717 }
718 b.setEnabled(activeLayerSupported);
719 }
720 }
721 // invalidate repaint cache. The layer order may have changed by this, so we invalidate every layer
722 getLayerManager().getLayers().forEach(invalidatedListener::invalidate);
723 AudioPlayer.reset();
724 }
725
726 /**
727 * Adds a new temporary layer.
728 * <p>
729 * A temporary layer is a layer that is painted above all normal layers. Layers are painted in the order they are added.
730 *
731 * @param mvp The layer to paint.
732 * @return <code>true</code> if the layer was added.
733 */
734 public boolean addTemporaryLayer(MapViewPaintable mvp) {
735 synchronized (temporaryLayers) {
736 boolean added = temporaryLayers.add(mvp);
737 if (added) {
738 invalidatedListener.addTo(mvp);
739 }
740 repaint();
741 return added;
742 }
743 }
744
745 /**
746 * Removes a layer previously added as temporary layer.
747 * @param mvp The layer to remove.
748 * @return <code>true</code> if that layer was removed.
749 */
750 public boolean removeTemporaryLayer(MapViewPaintable mvp) {
751 synchronized (temporaryLayers) {
752 boolean removed = temporaryLayers.remove(mvp);
753 if (removed) {
754 invalidatedListener.removeFrom(mvp);
755 }
756 repaint();
757 return removed;
758 }
759 }
760
761 /**
762 * Gets a list of temporary layers.
763 * @return The layers in the order they are added.
764 */
765 public List<MapViewPaintable> getTemporaryLayers() {
766 synchronized (temporaryLayers) {
767 return Collections.unmodifiableList(new ArrayList<>(temporaryLayers));
768 }
769 }
770
771 @Override
772 public void propertyChange(PropertyChangeEvent evt) {
773 if (evt.getPropertyName().equals(Layer.VISIBLE_PROP)) {
774 repaint();
775 } else if (evt.getPropertyName().equals(Layer.OPACITY_PROP) ||
776 evt.getPropertyName().equals(Layer.FILTER_STATE_PROP)) {
777 Layer l = (Layer) evt.getSource();
778 if (l.isVisible()) {
779 invalidatedListener.invalidate(l);
780 }
781 }
782 }
783
784 @Override
785 public void preferenceChanged(PreferenceChangeEvent e) {
786 paintPreferencesChanged.set(true);
787 }
788
789 private final transient DataSelectionListener repaintSelectionChangedListener = event -> repaint();
790
791 /**
792 * Destroy this map view panel. Should be called once when it is not needed any more.
793 */
794 public void destroy() {
795 layerManager.removeAndFireLayerChangeListener(this);
796 layerManager.removeActiveLayerChangeListener(this);
797 Config.getPref().removePreferenceChangeListener(this);
798 SelectionEventManager.getInstance().removeSelectionListener(repaintSelectionChangedListener);
799 MultipolygonCache.getInstance().clear();
800 if (mapMover != null) {
801 mapMover.destroy();
802 }
803 nonChangedLayers.clear();
804 synchronized (temporaryLayers) {
805 temporaryLayers.clear();
806 }
807 nonChangedLayersBuffer = null;
808 offscreenBuffer = null;
809 setTransferHandler(null);
810 GuiHelper.destroyComponents(this, false);
811 }
812
813 /**
814 * Get a string representation of all layers suitable for the {@code source} changeset tag.
815 * @return A String of sources separated by ';'
816 */
817 public String getLayerInformationForSourceTag() {
818 final Set<String> layerInfo = layerManager.getVisibleLayersInZOrder().stream()
819 .filter(layer -> layer.getChangesetSourceTag() != null && !layer.getChangesetSourceTag().trim().isEmpty())
820 .map(layer -> layer.getChangesetSourceTag().trim()).distinct().collect(Collectors.toSet());
821 return Utils.join("; ", layerInfo);
822 }
823
824 /**
825 * This is a listener that gets informed whenever repaint is called for this MapView.
826 * <p>
827 * This is the only safe method to find changes to the map view, since many components call MapView.repaint() directly.
828 * @author Michael Zangl
829 * @since 10600 (functional interface)
830 */
831 @FunctionalInterface
832 public interface RepaintListener {
833 /**
834 * Called when any repaint method is called (using default arguments if required).
835 * @param tm see {@link JComponent#repaint(long, int, int, int, int)}
836 * @param x see {@link JComponent#repaint(long, int, int, int, int)}
837 * @param y see {@link JComponent#repaint(long, int, int, int, int)}
838 * @param width see {@link JComponent#repaint(long, int, int, int, int)}
839 * @param height see {@link JComponent#repaint(long, int, int, int, int)}
840 */
841 void repaint(long tm, int x, int y, int width, int height);
842 }
843
844 private final transient CopyOnWriteArrayList<RepaintListener> repaintListeners = new CopyOnWriteArrayList<>();
845
846 /**
847 * Adds a listener that gets informed whenever repaint() is called for this class.
848 * @param l The listener.
849 */
850 public void addRepaintListener(RepaintListener l) {
851 repaintListeners.add(l);
852 }
853
854 /**
855 * Removes a registered repaint listener.
856 * @param l The listener.
857 */
858 public void removeRepaintListener(RepaintListener l) {
859 repaintListeners.remove(l);
860 }
861
862 @Override
863 public void repaint(long tm, int x, int y, int width, int height) {
864 // This is the main repaint method, all other methods are convenience methods and simply call this method.
865 // This is just an observation, not a must, but seems to be true for all implementations I found so far.
866 if (repaintListeners != null) {
867 // Might get called early in super constructor
868 for (RepaintListener l : repaintListeners) {
869 l.repaint(tm, x, y, width, height);
870 }
871 }
872 super.repaint(tm, x, y, width, height);
873 }
874
875 @Override
876 public void repaint() {
877 if (Logging.isTraceEnabled()) {
878 invalidatedListener.traceRandomRepaint();
879 }
880 super.repaint();
881 }
882
883 /**
884 * Returns the layer manager.
885 * @return the layer manager
886 * @since 10282
887 */
888 public final MainLayerManager getLayerManager() {
889 return layerManager;
890 }
891
892 /**
893 * Schedule a zoom to the given position on the next redraw.
894 * Temporary, may be removed without warning.
895 * @param viewportData the viewport to zoom to
896 * @since 10394
897 */
898 public void scheduleZoomTo(ViewportData viewportData) {
899 initialViewport = viewportData;
900 }
901
902 /**
903 * Returns the internal {@link MapMover}.
904 * @return the internal {@code MapMover}
905 * @since 13126
906 */
907 public final MapMover getMapMover() {
908 return mapMover;
909 }
910}
Note: See TracBrowser for help on using the repository browser.