001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.gui; 003 004import java.awt.AlphaComposite; 005import java.awt.Color; 006import java.awt.Dimension; 007import java.awt.Graphics; 008import java.awt.Graphics2D; 009import java.awt.Point; 010import java.awt.Rectangle; 011import java.awt.Shape; 012import java.awt.event.ComponentAdapter; 013import java.awt.event.ComponentEvent; 014import java.awt.event.KeyEvent; 015import java.awt.event.MouseAdapter; 016import java.awt.event.MouseEvent; 017import java.awt.event.MouseMotionListener; 018import java.awt.geom.AffineTransform; 019import java.awt.geom.Area; 020import java.awt.image.BufferedImage; 021import java.beans.PropertyChangeEvent; 022import java.beans.PropertyChangeListener; 023import java.util.ArrayList; 024import java.util.Arrays; 025import java.util.Collections; 026import java.util.HashMap; 027import java.util.IdentityHashMap; 028import java.util.LinkedHashSet; 029import java.util.List; 030import java.util.Set; 031import java.util.TreeSet; 032import java.util.concurrent.CopyOnWriteArrayList; 033import java.util.concurrent.atomic.AtomicBoolean; 034 035import javax.swing.AbstractButton; 036import javax.swing.JComponent; 037import javax.swing.SwingUtilities; 038 039import org.openstreetmap.josm.Main; 040import org.openstreetmap.josm.actions.mapmode.MapMode; 041import org.openstreetmap.josm.data.Bounds; 042import org.openstreetmap.josm.data.ProjectionBounds; 043import org.openstreetmap.josm.data.ViewportData; 044import org.openstreetmap.josm.data.coor.EastNorth; 045import org.openstreetmap.josm.data.osm.DataSelectionListener; 046import org.openstreetmap.josm.data.osm.event.SelectionEventManager; 047import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors; 048import org.openstreetmap.josm.data.osm.visitor.paint.Rendering; 049import org.openstreetmap.josm.data.osm.visitor.paint.relations.MultipolygonCache; 050import org.openstreetmap.josm.gui.MapViewState.MapViewRectangle; 051import org.openstreetmap.josm.gui.autofilter.AutoFilterManager; 052import org.openstreetmap.josm.gui.datatransfer.OsmTransferHandler; 053import org.openstreetmap.josm.gui.layer.GpxLayer; 054import org.openstreetmap.josm.gui.layer.ImageryLayer; 055import org.openstreetmap.josm.gui.layer.Layer; 056import org.openstreetmap.josm.gui.layer.LayerManager; 057import org.openstreetmap.josm.gui.layer.LayerManager.LayerAddEvent; 058import org.openstreetmap.josm.gui.layer.LayerManager.LayerOrderChangeEvent; 059import org.openstreetmap.josm.gui.layer.LayerManager.LayerRemoveEvent; 060import org.openstreetmap.josm.gui.layer.MainLayerManager; 061import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeEvent; 062import org.openstreetmap.josm.gui.layer.MapViewGraphics; 063import org.openstreetmap.josm.gui.layer.MapViewPaintable; 064import org.openstreetmap.josm.gui.layer.MapViewPaintable.LayerPainter; 065import org.openstreetmap.josm.gui.layer.MapViewPaintable.MapViewEvent; 066import org.openstreetmap.josm.gui.layer.MapViewPaintable.PaintableInvalidationEvent; 067import org.openstreetmap.josm.gui.layer.MapViewPaintable.PaintableInvalidationListener; 068import org.openstreetmap.josm.gui.layer.OsmDataLayer; 069import org.openstreetmap.josm.gui.layer.geoimage.GeoImageLayer; 070import org.openstreetmap.josm.gui.layer.markerlayer.PlayHeadMarker; 071import org.openstreetmap.josm.gui.mappaint.MapPaintStyles; 072import org.openstreetmap.josm.gui.mappaint.MapPaintStyles.MapPaintSylesUpdateListener; 073import org.openstreetmap.josm.io.audio.AudioPlayer; 074import org.openstreetmap.josm.spi.preferences.Config; 075import org.openstreetmap.josm.spi.preferences.PreferenceChangeEvent; 076import org.openstreetmap.josm.spi.preferences.PreferenceChangedListener; 077import org.openstreetmap.josm.tools.JosmRuntimeException; 078import org.openstreetmap.josm.tools.Logging; 079import org.openstreetmap.josm.tools.Shortcut; 080import org.openstreetmap.josm.tools.Utils; 081import org.openstreetmap.josm.tools.bugreport.BugReport; 082 083/** 084 * This is a component used in the {@link MapFrame} for browsing the map. It use is to 085 * provide the MapMode's enough capabilities to operate.<br><br> 086 * 087 * {@code MapView} holds meta-data about the data set currently displayed, as scale level, 088 * center point viewed, what scrolling mode or editing mode is selected or with 089 * what projection the map is viewed etc..<br><br> 090 * 091 * {@code MapView} is able to administrate several layers. 092 * 093 * @author imi 094 */ 095public class MapView extends NavigatableComponent 096implements PropertyChangeListener, PreferenceChangedListener, 097LayerManager.LayerChangeListener, MainLayerManager.ActiveLayerChangeListener { 098 099 static { 100 MapPaintStyles.addMapPaintSylesUpdateListener(new MapPaintSylesUpdateListener() { 101 @Override 102 public void mapPaintStylesUpdated() { 103 SwingUtilities.invokeLater(() -> { 104 // Trigger a repaint of all data layers 105 MainApplication.getLayerManager().getLayers() 106 .stream() 107 .filter(layer -> layer instanceof OsmDataLayer) 108 .forEach(Layer::invalidate); 109 }); 110 } 111 112 @Override 113 public void mapPaintStyleEntryUpdated(int index) { 114 mapPaintStylesUpdated(); 115 } 116 }); 117 } 118 119 /** 120 * An invalidation listener that simply calls repaint() for now. 121 * @author Michael Zangl 122 * @since 10271 123 */ 124 private class LayerInvalidatedListener implements PaintableInvalidationListener { 125 private boolean ignoreRepaint; 126 127 private final Set<MapViewPaintable> invalidatedLayers = Collections.newSetFromMap(new IdentityHashMap<MapViewPaintable, Boolean>()); 128 129 @Override 130 public void paintableInvalidated(PaintableInvalidationEvent event) { 131 invalidate(event.getLayer()); 132 } 133 134 /** 135 * Invalidate contents and repaint map view 136 * @param mapViewPaintable invalidated layer 137 */ 138 public synchronized void invalidate(MapViewPaintable mapViewPaintable) { 139 ignoreRepaint = true; 140 invalidatedLayers.add(mapViewPaintable); 141 repaint(); 142 } 143 144 /** 145 * Temporary until all {@link MapViewPaintable}s support this. 146 * @param p The paintable. 147 */ 148 public synchronized void addTo(MapViewPaintable p) { 149 p.addInvalidationListener(this); 150 } 151 152 /** 153 * Temporary until all {@link MapViewPaintable}s support this. 154 * @param p The paintable. 155 */ 156 public synchronized void removeFrom(MapViewPaintable p) { 157 p.removeInvalidationListener(this); 158 invalidatedLayers.remove(p); 159 } 160 161 /** 162 * Attempts to trace repaints that did not originate from this listener. Good to find missed {@link MapView#repaint()}s in code. 163 */ 164 protected synchronized void traceRandomRepaint() { 165 if (!ignoreRepaint) { 166 Logging.trace("Repaint: {0} from {1}", Thread.currentThread().getStackTrace()[3], Thread.currentThread()); 167 } 168 ignoreRepaint = false; 169 } 170 171 /** 172 * Retrieves a set of all layers that have been marked as invalid since the last call to this method. 173 * @return The layers 174 */ 175 protected synchronized Set<MapViewPaintable> collectInvalidatedLayers() { 176 Set<MapViewPaintable> layers = Collections.newSetFromMap(new IdentityHashMap<MapViewPaintable, Boolean>()); 177 layers.addAll(invalidatedLayers); 178 invalidatedLayers.clear(); 179 return layers; 180 } 181 } 182 183 /** 184 * A layer painter that issues a warning when being called. 185 * @author Michael Zangl 186 * @since 10474 187 */ 188 private static class WarningLayerPainter implements LayerPainter { 189 boolean warningPrinted; 190 private final Layer layer; 191 192 WarningLayerPainter(Layer layer) { 193 this.layer = layer; 194 } 195 196 @Override 197 public void paint(MapViewGraphics graphics) { 198 if (!warningPrinted) { 199 Logging.debug("A layer triggered a repaint while being added: " + layer); 200 warningPrinted = true; 201 } 202 } 203 204 @Override 205 public void detachFromMapView(MapViewEvent event) { 206 // ignored 207 } 208 } 209 210 /** 211 * A list of all layers currently loaded. If we support multiple map views, this list may be different for each of them. 212 */ 213 private final MainLayerManager layerManager; 214 215 /** 216 * The play head marker: there is only one of these so it isn't in any specific layer 217 */ 218 public transient PlayHeadMarker playHeadMarker; 219 220 /** 221 * The last event performed by mouse. 222 */ 223 public MouseEvent lastMEvent = new MouseEvent(this, 0, 0, 0, 0, 0, 0, false); // In case somebody reads it before first mouse move 224 225 /** 226 * Temporary layers (selection rectangle, etc.) that are never cached and 227 * drawn on top of regular layers. 228 * Access must be synchronized. 229 */ 230 private final transient Set<MapViewPaintable> temporaryLayers = new LinkedHashSet<>(); 231 232 private transient BufferedImage nonChangedLayersBuffer; 233 private transient BufferedImage offscreenBuffer; 234 // Layers that wasn't changed since last paint 235 private final transient List<Layer> nonChangedLayers = new ArrayList<>(); 236 private int lastViewID; 237 private final AtomicBoolean paintPreferencesChanged = new AtomicBoolean(true); 238 private Rectangle lastClipBounds = new Rectangle(); 239 private transient MapMover mapMover; 240 241 /** 242 * The listener that listens to invalidations of all layers. 243 */ 244 private final LayerInvalidatedListener invalidatedListener = new LayerInvalidatedListener(); 245 246 /** 247 * This is a map of all Layers that have been added to this view. 248 */ 249 private final HashMap<Layer, LayerPainter> registeredLayers = new HashMap<>(); 250 251 /** 252 * Constructs a new {@code MapView}. 253 * @param layerManager The layers to display. 254 * @param viewportData the initial viewport of the map. Can be null, then 255 * the viewport is derived from the layer data. 256 * @since 11713 257 */ 258 public MapView(MainLayerManager layerManager, final ViewportData viewportData) { 259 this.layerManager = layerManager; 260 initialViewport = viewportData; 261 layerManager.addAndFireLayerChangeListener(this); 262 layerManager.addActiveLayerChangeListener(this); 263 Config.getPref().addPreferenceChangeListener(this); 264 265 addComponentListener(new ComponentAdapter() { 266 @Override 267 public void componentResized(ComponentEvent e) { 268 removeComponentListener(this); 269 mapMover = new MapMover(MapView.this); 270 } 271 }); 272 273 // listens to selection changes to redraw the map 274 SelectionEventManager.getInstance().addSelectionListenerForEdt(repaintSelectionChangedListener); 275 276 //store the last mouse action 277 this.addMouseMotionListener(new MouseMotionListener() { 278 @Override 279 public void mouseDragged(MouseEvent e) { 280 mouseMoved(e); 281 } 282 283 @Override 284 public void mouseMoved(MouseEvent e) { 285 lastMEvent = e; 286 } 287 }); 288 this.addMouseListener(new MouseAdapter() { 289 @Override 290 public void mousePressed(MouseEvent me) { 291 // focus the MapView component when mouse is pressed inside it 292 requestFocus(); 293 } 294 }); 295 296 setFocusTraversalKeysEnabled(!Shortcut.findShortcut(KeyEvent.VK_TAB, 0).isPresent()); 297 298 for (JComponent c : getMapNavigationComponents(this)) { 299 add(c); 300 } 301 if (AutoFilterManager.PROP_AUTO_FILTER_ENABLED.get()) { 302 AutoFilterManager.getInstance().enableAutoFilterRule(AutoFilterManager.PROP_AUTO_FILTER_RULE.get()); 303 } 304 setTransferHandler(new OsmTransferHandler()); 305 } 306 307 /** 308 * Adds the map navigation components to a 309 * @param forMapView The map view to get the components for. 310 * @return A list containing the correctly positioned map navigation components. 311 */ 312 public static List<? extends JComponent> getMapNavigationComponents(MapView forMapView) { 313 MapSlider zoomSlider = new MapSlider(forMapView); 314 Dimension size = zoomSlider.getPreferredSize(); 315 zoomSlider.setSize(size); 316 zoomSlider.setLocation(3, 0); 317 zoomSlider.setFocusTraversalKeysEnabled(!Shortcut.findShortcut(KeyEvent.VK_TAB, 0).isPresent()); 318 319 MapScaler scaler = new MapScaler(forMapView); 320 scaler.setPreferredLineLength(size.width - 10); 321 scaler.setSize(scaler.getPreferredSize()); 322 scaler.setLocation(3, size.height); 323 324 return Arrays.asList(zoomSlider, scaler); 325 } 326 327 // remebered geometry of the component 328 private Dimension oldSize; 329 private Point oldLoc; 330 331 /** 332 * Call this method to keep map position on screen during next repaint 333 */ 334 public void rememberLastPositionOnScreen() { 335 oldSize = getSize(); 336 oldLoc = getLocationOnScreen(); 337 } 338 339 @Override 340 public void layerAdded(LayerAddEvent e) { 341 try { 342 Layer layer = e.getAddedLayer(); 343 registeredLayers.put(layer, new WarningLayerPainter(layer)); 344 // Layers may trigger a redraw during this call if they open dialogs. 345 LayerPainter painter = layer.attachToMapView(new MapViewEvent(this, false)); 346 if (!registeredLayers.containsKey(layer)) { 347 // The layer may have removed itself during attachToMapView() 348 Logging.warn("Layer was removed during attachToMapView()"); 349 } else { 350 registeredLayers.put(layer, painter); 351 352 if (e.isZoomRequired()) { 353 ProjectionBounds viewProjectionBounds = layer.getViewProjectionBounds(); 354 if (viewProjectionBounds != null) { 355 scheduleZoomTo(new ViewportData(viewProjectionBounds)); 356 } 357 } 358 359 layer.addPropertyChangeListener(this); 360 Main.addProjectionChangeListener(layer); 361 invalidatedListener.addTo(layer); 362 AudioPlayer.reset(); 363 364 repaint(); 365 } 366 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException t) { 367 throw BugReport.intercept(t).put("layer", e.getAddedLayer()); 368 } 369 } 370 371 /** 372 * Replies true if the active data layer (edit layer) is drawable. 373 * 374 * @return true if the active data layer (edit layer) is drawable, false otherwise 375 */ 376 public boolean isActiveLayerDrawable() { 377 return layerManager.getEditLayer() != null; 378 } 379 380 /** 381 * Replies true if the active data layer is visible. 382 * 383 * @return true if the active data layer is visible, false otherwise 384 */ 385 public boolean isActiveLayerVisible() { 386 OsmDataLayer e = layerManager.getActiveDataLayer(); 387 return e != null && e.isVisible(); 388 } 389 390 @Override 391 public void layerRemoving(LayerRemoveEvent e) { 392 Layer layer = e.getRemovedLayer(); 393 394 LayerPainter painter = registeredLayers.remove(layer); 395 if (painter == null) { 396 Logging.error("The painter for layer " + layer + " was not registered."); 397 return; 398 } 399 painter.detachFromMapView(new MapViewEvent(this, false)); 400 Main.removeProjectionChangeListener(layer); 401 layer.removePropertyChangeListener(this); 402 invalidatedListener.removeFrom(layer); 403 layer.destroy(); 404 AudioPlayer.reset(); 405 406 repaint(); 407 } 408 409 private boolean virtualNodesEnabled; 410 411 /** 412 * Enables or disables drawing of the virtual nodes. 413 * @param enabled if virtual nodes are enabled 414 */ 415 public void setVirtualNodesEnabled(boolean enabled) { 416 if (virtualNodesEnabled != enabled) { 417 virtualNodesEnabled = enabled; 418 repaint(); 419 } 420 } 421 422 /** 423 * Checks if virtual nodes should be drawn. Default is <code>false</code> 424 * @return The virtual nodes property. 425 * @see Rendering#render 426 */ 427 public boolean isVirtualNodesEnabled() { 428 return virtualNodesEnabled; 429 } 430 431 /** 432 * Moves the layer to the given new position. No event is fired, but repaints 433 * according to the new Z-Order of the layers. 434 * 435 * @param layer The layer to move 436 * @param pos The new position of the layer 437 */ 438 public void moveLayer(Layer layer, int pos) { 439 layerManager.moveLayer(layer, pos); 440 } 441 442 @Override 443 public void layerOrderChanged(LayerOrderChangeEvent e) { 444 AudioPlayer.reset(); 445 repaint(); 446 } 447 448 /** 449 * Paints the given layer to the graphics object, using the current state of this map view. 450 * @param layer The layer to draw. 451 * @param g A graphics object. It should have the width and height of this component 452 * @throws IllegalArgumentException If the layer is not part of this map view. 453 * @since 11226 454 */ 455 public void paintLayer(Layer layer, Graphics2D g) { 456 try { 457 LayerPainter painter = registeredLayers.get(layer); 458 if (painter == null) { 459 Logging.warn("Cannot paint layer, it is not registered: {0}", layer); 460 return; 461 } 462 MapViewRectangle clipBounds = getState().getViewArea(g.getClipBounds()); 463 MapViewGraphics paintGraphics = new MapViewGraphics(this, g, clipBounds); 464 465 if (layer.getOpacity() < 1) { 466 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float) layer.getOpacity())); 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 if (getCenter() == null) 686 return false; // no data loaded yet. 687 688 // if the position was remembered, we need to adjust center once before repainting 689 if (oldLoc != null && oldSize != null) { 690 Point l1 = getLocationOnScreen(); 691 final EastNorth newCenter = new EastNorth( 692 getCenter().getX()+ (l1.x-oldLoc.x - (oldSize.width-getWidth())/2.0)*getScale(), 693 getCenter().getY()+ (oldLoc.y-l1.y + (oldSize.height-getHeight())/2.0)*getScale() 694 ); 695 oldLoc = null; oldSize = null; 696 zoomTo(newCenter); 697 } 698 699 return true; 700 } 701 702 @Override 703 public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) { 704 MapFrame map = MainApplication.getMap(); 705 if (map != null) { 706 /* This only makes the buttons look disabled. Disabling the actions as well requires 707 * the user to re-select the tool after i.e. moving a layer. While testing I found 708 * that I switch layers and actions at the same time and it was annoying to mind the 709 * order. This way it works as visual clue for new users */ 710 // FIXME: This does not belong here. 711 for (final AbstractButton b: map.allMapModeButtons) { 712 MapMode mode = (MapMode) b.getAction(); 713 final boolean activeLayerSupported = mode.layerIsSupported(layerManager.getActiveLayer()); 714 if (activeLayerSupported) { 715 MainApplication.registerActionShortcut(mode, mode.getShortcut()); //fix #6876 716 } else { 717 MainApplication.unregisterShortcut(mode.getShortcut()); 718 } 719 b.setEnabled(activeLayerSupported); 720 } 721 } 722 // invalidate repaint cache. The layer order may have changed by this, so we invalidate every layer 723 getLayerManager().getLayers().forEach(invalidatedListener::invalidate); 724 AudioPlayer.reset(); 725 } 726 727 /** 728 * Adds a new temporary layer. 729 * <p> 730 * A temporary layer is a layer that is painted above all normal layers. Layers are painted in the order they are added. 731 * 732 * @param mvp The layer to paint. 733 * @return <code>true</code> if the layer was added. 734 */ 735 public boolean addTemporaryLayer(MapViewPaintable mvp) { 736 synchronized (temporaryLayers) { 737 boolean added = temporaryLayers.add(mvp); 738 if (added) { 739 invalidatedListener.addTo(mvp); 740 } 741 repaint(); 742 return added; 743 } 744 } 745 746 /** 747 * Removes a layer previously added as temporary layer. 748 * @param mvp The layer to remove. 749 * @return <code>true</code> if that layer was removed. 750 */ 751 public boolean removeTemporaryLayer(MapViewPaintable mvp) { 752 synchronized (temporaryLayers) { 753 boolean removed = temporaryLayers.remove(mvp); 754 if (removed) { 755 invalidatedListener.removeFrom(mvp); 756 } 757 repaint(); 758 return removed; 759 } 760 } 761 762 /** 763 * Gets a list of temporary layers. 764 * @return The layers in the order they are added. 765 */ 766 public List<MapViewPaintable> getTemporaryLayers() { 767 synchronized (temporaryLayers) { 768 return Collections.unmodifiableList(new ArrayList<>(temporaryLayers)); 769 } 770 } 771 772 @Override 773 public void propertyChange(PropertyChangeEvent evt) { 774 if (evt.getPropertyName().equals(Layer.VISIBLE_PROP)) { 775 repaint(); 776 } else if (evt.getPropertyName().equals(Layer.OPACITY_PROP) || 777 evt.getPropertyName().equals(Layer.FILTER_STATE_PROP)) { 778 Layer l = (Layer) evt.getSource(); 779 if (l.isVisible()) { 780 invalidatedListener.invalidate(l); 781 } 782 } 783 } 784 785 @Override 786 public void preferenceChanged(PreferenceChangeEvent e) { 787 paintPreferencesChanged.set(true); 788 } 789 790 private final transient DataSelectionListener repaintSelectionChangedListener = event -> repaint(); 791 792 /** 793 * Destroy this map view panel. Should be called once when it is not needed any more. 794 */ 795 public void destroy() { 796 layerManager.removeAndFireLayerChangeListener(this); 797 layerManager.removeActiveLayerChangeListener(this); 798 Config.getPref().removePreferenceChangeListener(this); 799 SelectionEventManager.getInstance().removeSelectionListener(repaintSelectionChangedListener); 800 MultipolygonCache.getInstance().clear(); 801 if (mapMover != null) { 802 mapMover.destroy(); 803 } 804 nonChangedLayers.clear(); 805 synchronized (temporaryLayers) { 806 temporaryLayers.clear(); 807 } 808 nonChangedLayersBuffer = null; 809 offscreenBuffer = null; 810 } 811 812 /** 813 * Get a string representation of all layers suitable for the {@code source} changeset tag. 814 * @return A String of sources separated by ';' 815 */ 816 public String getLayerInformationForSourceTag() { 817 final Set<String> layerInfo = new TreeSet<>(); 818 if (!layerManager.getLayersOfType(GpxLayer.class).isEmpty()) { 819 // no i18n for international values 820 layerInfo.add("survey"); 821 } 822 for (final GeoImageLayer i : layerManager.getLayersOfType(GeoImageLayer.class)) { 823 if (i.isVisible()) { 824 layerInfo.add(i.getName()); 825 } 826 } 827 for (final ImageryLayer i : layerManager.getLayersOfType(ImageryLayer.class)) { 828 if (i.isVisible()) { 829 layerInfo.add(i.getInfo().getSourceName()); 830 } 831 } 832 return Utils.join("; ", layerInfo); 833 } 834 835 /** 836 * This is a listener that gets informed whenever repaint is called for this MapView. 837 * <p> 838 * This is the only safe method to find changes to the map view, since many components call MapView.repaint() directly. 839 * @author Michael Zangl 840 * @since 10600 (functional interface) 841 */ 842 @FunctionalInterface 843 public interface RepaintListener { 844 /** 845 * Called when any repaint method is called (using default arguments if required). 846 * @param tm see {@link JComponent#repaint(long, int, int, int, int)} 847 * @param x see {@link JComponent#repaint(long, int, int, int, int)} 848 * @param y see {@link JComponent#repaint(long, int, int, int, int)} 849 * @param width see {@link JComponent#repaint(long, int, int, int, int)} 850 * @param height see {@link JComponent#repaint(long, int, int, int, int)} 851 */ 852 void repaint(long tm, int x, int y, int width, int height); 853 } 854 855 private final transient CopyOnWriteArrayList<RepaintListener> repaintListeners = new CopyOnWriteArrayList<>(); 856 857 /** 858 * Adds a listener that gets informed whenever repaint() is called for this class. 859 * @param l The listener. 860 */ 861 public void addRepaintListener(RepaintListener l) { 862 repaintListeners.add(l); 863 } 864 865 /** 866 * Removes a registered repaint listener. 867 * @param l The listener. 868 */ 869 public void removeRepaintListener(RepaintListener l) { 870 repaintListeners.remove(l); 871 } 872 873 @Override 874 public void repaint(long tm, int x, int y, int width, int height) { 875 // This is the main repaint method, all other methods are convenience methods and simply call this method. 876 // This is just an observation, not a must, but seems to be true for all implementations I found so far. 877 if (repaintListeners != null) { 878 // Might get called early in super constructor 879 for (RepaintListener l : repaintListeners) { 880 l.repaint(tm, x, y, width, height); 881 } 882 } 883 super.repaint(tm, x, y, width, height); 884 } 885 886 @Override 887 public void repaint() { 888 if (Logging.isTraceEnabled()) { 889 invalidatedListener.traceRandomRepaint(); 890 } 891 super.repaint(); 892 } 893 894 /** 895 * Returns the layer manager. 896 * @return the layer manager 897 * @since 10282 898 */ 899 public final MainLayerManager getLayerManager() { 900 return layerManager; 901 } 902 903 /** 904 * Schedule a zoom to the given position on the next redraw. 905 * Temporary, may be removed without warning. 906 * @param viewportData the viewport to zoom to 907 * @since 10394 908 */ 909 public void scheduleZoomTo(ViewportData viewportData) { 910 initialViewport = viewportData; 911 } 912 913 /** 914 * Returns the internal {@link MapMover}. 915 * @return the internal {@code MapMover} 916 * @since 13126 917 */ 918 public final MapMover getMapMover() { 919 return mapMover; 920 } 921}