001 // License: GPL. For details, see LICENSE file. 002 package org.openstreetmap.josm.gui.layer; 003 004 import static org.openstreetmap.josm.tools.I18n.tr; 005 006 import java.awt.Color; 007 import java.awt.Font; 008 import java.awt.Graphics; 009 import java.awt.Graphics2D; 010 import java.awt.Image; 011 import java.awt.Point; 012 import java.awt.Rectangle; 013 import java.awt.Toolkit; 014 import java.awt.event.ActionEvent; 015 import java.awt.event.MouseAdapter; 016 import java.awt.event.MouseEvent; 017 import java.awt.image.ImageObserver; 018 import java.io.File; 019 import java.io.IOException; 020 import java.io.StringReader; 021 import java.net.URL; 022 import java.util.ArrayList; 023 import java.util.Collections; 024 import java.util.HashSet; 025 import java.util.LinkedList; 026 import java.util.List; 027 import java.util.Map; 028 import java.util.Map.Entry; 029 import java.util.Scanner; 030 import java.util.concurrent.Callable; 031 import java.util.regex.Matcher; 032 import java.util.regex.Pattern; 033 034 import javax.swing.AbstractAction; 035 import javax.swing.Action; 036 import javax.swing.JCheckBoxMenuItem; 037 import javax.swing.JMenuItem; 038 import javax.swing.JOptionPane; 039 import javax.swing.JPopupMenu; 040 041 import org.openstreetmap.gui.jmapviewer.AttributionSupport; 042 import org.openstreetmap.gui.jmapviewer.Coordinate; 043 import org.openstreetmap.gui.jmapviewer.JobDispatcher; 044 import org.openstreetmap.gui.jmapviewer.MemoryTileCache; 045 import org.openstreetmap.gui.jmapviewer.OsmFileCacheTileLoader; 046 import org.openstreetmap.gui.jmapviewer.OsmFileCacheTileLoader.TileClearController; 047 import org.openstreetmap.gui.jmapviewer.OsmTileLoader; 048 import org.openstreetmap.gui.jmapviewer.Tile; 049 import org.openstreetmap.gui.jmapviewer.interfaces.TileCache; 050 import org.openstreetmap.gui.jmapviewer.interfaces.TileLoaderListener; 051 import org.openstreetmap.gui.jmapviewer.interfaces.TileSource; 052 import org.openstreetmap.gui.jmapviewer.tilesources.BingAerialTileSource; 053 import org.openstreetmap.gui.jmapviewer.tilesources.ScanexTileSource; 054 import org.openstreetmap.gui.jmapviewer.tilesources.TMSTileSource; 055 import org.openstreetmap.gui.jmapviewer.tilesources.TemplatedTMSTileSource; 056 import org.openstreetmap.josm.Main; 057 import org.openstreetmap.josm.actions.RenameLayerAction; 058 import org.openstreetmap.josm.data.Bounds; 059 import org.openstreetmap.josm.data.coor.EastNorth; 060 import org.openstreetmap.josm.data.coor.LatLon; 061 import org.openstreetmap.josm.data.imagery.ImageryInfo; 062 import org.openstreetmap.josm.data.imagery.ImageryInfo.ImageryType; 063 import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor; 064 import org.openstreetmap.josm.data.preferences.BooleanProperty; 065 import org.openstreetmap.josm.data.preferences.IntegerProperty; 066 import org.openstreetmap.josm.data.preferences.StringProperty; 067 import org.openstreetmap.josm.data.projection.Projection; 068 import org.openstreetmap.josm.gui.MapFrame; 069 import org.openstreetmap.josm.gui.MapView; 070 import org.openstreetmap.josm.gui.MapView.LayerChangeListener; 071 import org.openstreetmap.josm.gui.PleaseWaitRunnable; 072 import org.openstreetmap.josm.gui.dialogs.LayerListDialog; 073 import org.openstreetmap.josm.gui.dialogs.LayerListPopup; 074 import org.openstreetmap.josm.gui.progress.ProgressMonitor; 075 import org.openstreetmap.josm.gui.progress.ProgressMonitor.CancelListener; 076 import org.openstreetmap.josm.io.CacheCustomContent; 077 import org.openstreetmap.josm.io.OsmTransferException; 078 import org.openstreetmap.josm.io.UTFInputStreamReader; 079 import org.xml.sax.InputSource; 080 import org.xml.sax.SAXException; 081 082 /** 083 * Class that displays a slippy map layer. 084 * 085 * @author Frederik Ramm <frederik@remote.org> 086 * @author LuVar <lubomir.varga@freemap.sk> 087 * @author Dave Hansen <dave@sr71.net> 088 * @author Upliner <upliner@gmail.com> 089 * 090 */ 091 public class TMSLayer extends ImageryLayer implements ImageObserver, TileLoaderListener { 092 public static final String PREFERENCE_PREFIX = "imagery.tms"; 093 094 public static final int MAX_ZOOM = 30; 095 public static final int MIN_ZOOM = 2; 096 public static final int DEFAULT_MAX_ZOOM = 20; 097 public static final int DEFAULT_MIN_ZOOM = 2; 098 099 public static final BooleanProperty PROP_DEFAULT_AUTOZOOM = new BooleanProperty(PREFERENCE_PREFIX + ".default_autozoom", true); 100 public static final BooleanProperty PROP_DEFAULT_AUTOLOAD = new BooleanProperty(PREFERENCE_PREFIX + ".default_autoload", true); 101 public static final BooleanProperty PROP_DEFAULT_SHOWERRORS = new BooleanProperty(PREFERENCE_PREFIX + ".default_showerrors", true); 102 public static final IntegerProperty PROP_MIN_ZOOM_LVL = new IntegerProperty(PREFERENCE_PREFIX + ".min_zoom_lvl", DEFAULT_MIN_ZOOM); 103 public static final IntegerProperty PROP_MAX_ZOOM_LVL = new IntegerProperty(PREFERENCE_PREFIX + ".max_zoom_lvl", DEFAULT_MAX_ZOOM); 104 //public static final BooleanProperty PROP_DRAW_DEBUG = new BooleanProperty(PREFERENCE_PREFIX + ".draw_debug", false); 105 public static final BooleanProperty PROP_ADD_TO_SLIPPYMAP_CHOOSER = new BooleanProperty(PREFERENCE_PREFIX + ".add_to_slippymap_chooser", true); 106 public static final IntegerProperty PROP_TMS_JOBS = new IntegerProperty("tmsloader.maxjobs", 25); 107 public static final StringProperty PROP_TILECACHE_DIR; 108 109 static { 110 String defPath = null; 111 try { 112 defPath = OsmFileCacheTileLoader.getDefaultCacheDir().getAbsolutePath(); 113 } catch (SecurityException e) { 114 } 115 PROP_TILECACHE_DIR = new StringProperty(PREFERENCE_PREFIX + ".tilecache_path", defPath); 116 } 117 118 /*boolean debug = true;*/ 119 120 protected MemoryTileCache tileCache; 121 protected TileSource tileSource; 122 protected OsmTileLoader tileLoader; 123 124 HashSet<Tile> tileRequestsOutstanding = new HashSet<Tile>(); 125 @Override 126 public synchronized void tileLoadingFinished(Tile tile, boolean success) { 127 if (tile.hasError()) { 128 success = false; 129 tile.setImage(null); 130 } 131 if (sharpenLevel != 0 && success) { 132 tile.setImage(sharpenImage(tile.getImage())); 133 } 134 tile.setLoaded(true); 135 needRedraw = true; 136 Main.map.repaint(100); 137 tileRequestsOutstanding.remove(tile); 138 /*if (debug) { 139 Main.debug("tileLoadingFinished() tile: " + tile + " success: " + success); 140 }*/ 141 } 142 143 @Override 144 public TileCache getTileCache() { 145 return tileCache; 146 } 147 148 private class TmsTileClearController implements TileClearController, CancelListener { 149 150 private final ProgressMonitor monitor; 151 private boolean cancel = false; 152 153 public TmsTileClearController(ProgressMonitor monitor) { 154 this.monitor = monitor; 155 this.monitor.addCancelListener(this); 156 } 157 158 @Override 159 public void initClearDir(File dir) { 160 } 161 162 @Override 163 public void initClearFiles(File[] files) { 164 monitor.setTicksCount(files.length); 165 monitor.setTicks(0); 166 } 167 168 @Override 169 public boolean cancel() { 170 return cancel; 171 } 172 173 @Override 174 public void fileDeleted(File file) { 175 monitor.setTicks(monitor.getTicks()+1); 176 } 177 178 @Override 179 public void clearFinished() { 180 monitor.finishTask(); 181 } 182 183 @Override 184 public void operationCanceled() { 185 cancel = true; 186 } 187 } 188 189 /** 190 * Clears the tile cache. 191 * 192 * If the current tileLoader is an instance of OsmTileLoader, a new 193 * TmsTileClearController is created and passed to the according clearCache 194 * method. 195 * 196 * @param monitor 197 * @see MemoryTileCache#clear() 198 * @see OsmFileCacheTileLoader#clearCache(org.openstreetmap.gui.jmapviewer.interfaces.TileSource, org.openstreetmap.gui.jmapviewer.OsmFileCacheTileLoader.TileClearController) 199 */ 200 void clearTileCache(ProgressMonitor monitor) { 201 tileCache.clear(); 202 if (tileLoader instanceof OsmFileCacheTileLoader) { 203 ((OsmFileCacheTileLoader)tileLoader).clearCache(tileSource, new TmsTileClearController(monitor)); 204 } 205 } 206 207 /** 208 * Zoomlevel at which tiles is currently downloaded. 209 * Initial zoom lvl is set to bestZoom 210 */ 211 public int currentZoomLevel; 212 213 private Tile clickedTile; 214 private boolean needRedraw; 215 private JPopupMenu tileOptionMenu; 216 JCheckBoxMenuItem autoZoomPopup; 217 JCheckBoxMenuItem autoLoadPopup; 218 JCheckBoxMenuItem showErrorsPopup; 219 Tile showMetadataTile; 220 private AttributionSupport attribution = new AttributionSupport(); 221 private static final Font InfoFont = new Font("sansserif", Font.BOLD, 13); 222 223 protected boolean autoZoom; 224 protected boolean autoLoad; 225 protected boolean showErrors; 226 227 /** 228 * Initiates a repaint of Main.map 229 * 230 * @see Main#map 231 * @see MapFrame#repaint() 232 */ 233 void redraw() { 234 needRedraw = true; 235 Main.map.repaint(); 236 } 237 238 static int checkMaxZoomLvl(int maxZoomLvl, TileSource ts) { 239 if(maxZoomLvl > MAX_ZOOM) { 240 /*Main.debug("Max. zoom level should not be more than 30! Setting to 30.");*/ 241 maxZoomLvl = MAX_ZOOM; 242 } 243 if(maxZoomLvl < PROP_MIN_ZOOM_LVL.get()) { 244 /*Main.debug("Max. zoom level should not be more than min. zoom level! Setting to min.");*/ 245 maxZoomLvl = PROP_MIN_ZOOM_LVL.get(); 246 } 247 if (ts != null && ts.getMaxZoom() != 0 && ts.getMaxZoom() < maxZoomLvl) { 248 maxZoomLvl = ts.getMaxZoom(); 249 } 250 return maxZoomLvl; 251 } 252 253 public static int getMaxZoomLvl(TileSource ts) { 254 return checkMaxZoomLvl(PROP_MAX_ZOOM_LVL.get(), ts); 255 } 256 257 public static void setMaxZoomLvl(int maxZoomLvl) { 258 maxZoomLvl = checkMaxZoomLvl(maxZoomLvl, null); 259 PROP_MAX_ZOOM_LVL.put(maxZoomLvl); 260 } 261 262 static int checkMinZoomLvl(int minZoomLvl, TileSource ts) { 263 if(minZoomLvl < MIN_ZOOM) { 264 /*Main.debug("Min. zoom level should not be less than "+MIN_ZOOM+"! Setting to that.");*/ 265 minZoomLvl = MIN_ZOOM; 266 } 267 if(minZoomLvl > PROP_MAX_ZOOM_LVL.get()) { 268 /*Main.debug("Min. zoom level should not be more than Max. zoom level! Setting to Max.");*/ 269 minZoomLvl = getMaxZoomLvl(ts); 270 } 271 if (ts != null && ts.getMinZoom() > minZoomLvl) { 272 /*Main.debug("Increasing min. zoom level to match tile source");*/ 273 minZoomLvl = ts.getMinZoom(); 274 } 275 return minZoomLvl; 276 } 277 278 public static int getMinZoomLvl(TileSource ts) { 279 return checkMinZoomLvl(PROP_MIN_ZOOM_LVL.get(), ts); 280 } 281 282 public static void setMinZoomLvl(int minZoomLvl) { 283 minZoomLvl = checkMinZoomLvl(minZoomLvl, null); 284 PROP_MIN_ZOOM_LVL.put(minZoomLvl); 285 } 286 287 private static class CachedAttributionBingAerialTileSource extends BingAerialTileSource { 288 289 class BingAttributionData extends CacheCustomContent<IOException> { 290 291 public BingAttributionData() { 292 super("bing.attribution.xml", CacheCustomContent.INTERVAL_HOURLY); 293 } 294 295 @Override 296 protected byte[] updateData() throws IOException { 297 URL u = getAttributionUrl(); 298 UTFInputStreamReader in = UTFInputStreamReader.create(u.openStream(), "utf-8"); 299 String r = new Scanner(in).useDelimiter("\\A").next(); 300 System.out.println("Successfully loaded Bing attribution data."); 301 return r.getBytes("utf-8"); 302 } 303 } 304 305 @Override 306 protected Callable<List<Attribution>> getAttributionLoaderCallable() { 307 return new Callable<List<Attribution>>() { 308 309 @Override 310 public List<Attribution> call() throws Exception { 311 BingAttributionData attributionLoader = new BingAttributionData(); 312 int waitTimeSec = 1; 313 while (true) { 314 try { 315 String xml = attributionLoader.updateIfRequiredString(); 316 return parseAttributionText(new InputSource(new StringReader((xml)))); 317 } catch (IOException ex) { 318 System.err.println("Could not connect to Bing API. Will retry in " + waitTimeSec + " seconds."); 319 Thread.sleep(waitTimeSec * 1000L); 320 waitTimeSec *= 2; 321 } 322 } 323 } 324 }; 325 } 326 } 327 328 /** 329 * Creates and returns a new TileSource instance depending on the {@link ImageryType} 330 * of the passed ImageryInfo object. 331 * 332 * If no appropriate TileSource is found, null is returned. 333 * Currently supported ImageryType are {@link ImageryType#TMS}, 334 * {@link ImageryType#BING}, {@link ImageryType#SCANEX}. 335 * 336 * @param info 337 * @return a new TileSource instance or null if no TileSource for the ImageryInfo/ImageryType could be found. 338 * @throws IllegalArgumentException 339 */ 340 public static TileSource getTileSource(ImageryInfo info) throws IllegalArgumentException { 341 if (info.getImageryType() == ImageryType.TMS) { 342 checkUrl(info.getUrl()); 343 TMSTileSource t = new TemplatedTMSTileSource(info.getName(), info.getUrl(), info.getMinZoom(), info.getMaxZoom()); 344 info.setAttribution(t); 345 return t; 346 } else if (info.getImageryType() == ImageryType.BING) 347 return new CachedAttributionBingAerialTileSource(); 348 else if (info.getImageryType() == ImageryType.SCANEX) { 349 return new ScanexTileSource(info.getUrl()); 350 } 351 return null; 352 } 353 354 public static void checkUrl(String url) throws IllegalArgumentException { 355 if (url == null) { 356 throw new IllegalArgumentException(); 357 } else { 358 Matcher m = Pattern.compile("\\{[^}]*\\}").matcher(url); 359 while (m.find()) { 360 boolean isSupportedPattern = false; 361 for (String pattern : TemplatedTMSTileSource.ALL_PATTERNS) { 362 if (m.group().matches(pattern)) { 363 isSupportedPattern = true; 364 break; 365 } 366 } 367 if (!isSupportedPattern) { 368 throw new IllegalArgumentException(tr("{0} is not a valid TMS argument. Please check this server URL:\n{1}", m.group(), url)); 369 } 370 } 371 } 372 } 373 374 private void initTileSource(TileSource tileSource) { 375 this.tileSource = tileSource; 376 attribution.initialize(tileSource); 377 378 currentZoomLevel = getBestZoom(); 379 380 tileCache = new MemoryTileCache(); 381 382 String cachePath = TMSLayer.PROP_TILECACHE_DIR.get(); 383 tileLoader = null; 384 if (cachePath != null && !cachePath.isEmpty()) { 385 try { 386 tileLoader = new OsmFileCacheTileLoader(this, new File(cachePath)); 387 } catch (IOException e) { 388 } 389 } 390 if (tileLoader == null) { 391 tileLoader = new OsmTileLoader(this); 392 } 393 tileLoader.timeoutConnect = Main.pref.getInteger("socket.timeout.connect",15) * 1000; 394 tileLoader.timeoutRead = Main.pref.getInteger("socket.timeout.read", 30) * 1000; 395 if (tileSource instanceof TemplatedTMSTileSource) { 396 for(Entry<String, String> e : ((TemplatedTMSTileSource)tileSource).getHeaders().entrySet()) { 397 tileLoader.headers.put(e.getKey(), e.getValue()); 398 } 399 } 400 } 401 402 @Override 403 public void setOffset(double dx, double dy) { 404 super.setOffset(dx, dy); 405 needRedraw = true; 406 } 407 408 /** 409 * Returns average number of screen pixels per tile pixel for current mapview 410 */ 411 private double getScaleFactor(int zoom) { 412 if (Main.map == null || Main.map.mapView == null) return 1; 413 MapView mv = Main.map.mapView; 414 LatLon topLeft = mv.getLatLon(0, 0); 415 LatLon botRight = mv.getLatLon(mv.getWidth(), mv.getHeight()); 416 double x1 = tileSource.lonToTileX(topLeft.lon(), zoom); 417 double y1 = tileSource.latToTileY(topLeft.lat(), zoom); 418 double x2 = tileSource.lonToTileX(botRight.lon(), zoom); 419 double y2 = tileSource.latToTileY(botRight.lat(), zoom); 420 421 int screenPixels = mv.getWidth()*mv.getHeight(); 422 double tilePixels = Math.abs((y2-y1)*(x2-x1)*tileSource.getTileSize()*tileSource.getTileSize()); 423 if (screenPixels == 0 || tilePixels == 0) return 1; 424 return screenPixels/tilePixels; 425 } 426 427 private int getBestZoom() { 428 double factor = getScaleFactor(1); 429 double result = Math.log(factor)/Math.log(2)/2+1; 430 // In general, smaller zoom levels are more readable. We prefer big, 431 // block, pixelated (but readable) map text to small, smeared, 432 // unreadable underzoomed text. So, use .floor() instead of rounding 433 // to skew things a bit toward the lower zooms. 434 int intResult = (int)Math.floor(result); 435 if (intResult > getMaxZoomLvl()) 436 return getMaxZoomLvl(); 437 if (intResult < getMinZoomLvl()) 438 return getMinZoomLvl(); 439 return intResult; 440 } 441 442 /** 443 * Function to set the maximum number of workers for tile loading to the value defined 444 * in preferences. 445 */ 446 static public void setMaxWorkers() { 447 JobDispatcher.getInstance().setMaxWorkers(PROP_TMS_JOBS.get()); 448 JobDispatcher.getInstance().setLIFO(true); 449 } 450 451 @SuppressWarnings("serial") 452 public TMSLayer(ImageryInfo info) { 453 super(info); 454 455 setMaxWorkers(); 456 if(!isProjectionSupported(Main.getProjection())) { 457 JOptionPane.showMessageDialog(Main.parent, 458 tr("TMS layers do not support the projection {0}.\n{1}\n" 459 + "Change the projection or remove the layer.", 460 Main.getProjection().toCode(), nameSupportedProjections()), 461 tr("Warning"), 462 JOptionPane.WARNING_MESSAGE); 463 } 464 465 setBackgroundLayer(true); 466 this.setVisible(true); 467 468 TileSource source = getTileSource(info); 469 if (source == null) 470 throw new IllegalStateException("Cannot create TMSLayer with non-TMS ImageryInfo"); 471 initTileSource(source); 472 } 473 474 /** 475 * Adds a context menu to the mapView. 476 */ 477 @Override 478 public void hookUpMapView() { 479 tileOptionMenu = new JPopupMenu(); 480 481 autoZoom = PROP_DEFAULT_AUTOZOOM.get(); 482 autoZoomPopup = new JCheckBoxMenuItem(); 483 autoZoomPopup.setAction(new AbstractAction(tr("Auto Zoom")) { 484 @Override 485 public void actionPerformed(ActionEvent ae) { 486 autoZoom = !autoZoom; 487 } 488 }); 489 autoZoomPopup.setSelected(autoZoom); 490 tileOptionMenu.add(autoZoomPopup); 491 492 autoLoad = PROP_DEFAULT_AUTOLOAD.get(); 493 autoLoadPopup = new JCheckBoxMenuItem(); 494 autoLoadPopup.setAction(new AbstractAction(tr("Auto load tiles")) { 495 @Override 496 public void actionPerformed(ActionEvent ae) { 497 autoLoad= !autoLoad; 498 } 499 }); 500 autoLoadPopup.setSelected(autoLoad); 501 tileOptionMenu.add(autoLoadPopup); 502 503 showErrors = PROP_DEFAULT_SHOWERRORS.get(); 504 showErrorsPopup = new JCheckBoxMenuItem(); 505 showErrorsPopup.setAction(new AbstractAction(tr("Show Errors")) { 506 @Override 507 public void actionPerformed(ActionEvent ae) { 508 showErrors = !showErrors; 509 } 510 }); 511 showErrorsPopup.setSelected(showErrors); 512 tileOptionMenu.add(showErrorsPopup); 513 514 tileOptionMenu.add(new JMenuItem(new AbstractAction(tr("Load Tile")) { 515 @Override 516 public void actionPerformed(ActionEvent ae) { 517 if (clickedTile != null) { 518 loadTile(clickedTile, true); 519 redraw(); 520 } 521 } 522 })); 523 524 tileOptionMenu.add(new JMenuItem(new AbstractAction( 525 tr("Show Tile Info")) { 526 @Override 527 public void actionPerformed(ActionEvent ae) { 528 if (clickedTile != null) { 529 showMetadataTile = clickedTile; 530 redraw(); 531 } 532 } 533 })); 534 535 /* FIXME 536 tileOptionMenu.add(new JMenuItem(new AbstractAction( 537 tr("Request Update")) { 538 public void actionPerformed(ActionEvent ae) { 539 if (clickedTile != null) { 540 clickedTile.requestUpdate(); 541 redraw(); 542 } 543 } 544 }));*/ 545 546 tileOptionMenu.add(new JMenuItem(new AbstractAction( 547 tr("Load All Tiles")) { 548 @Override 549 public void actionPerformed(ActionEvent ae) { 550 loadAllTiles(true); 551 redraw(); 552 } 553 })); 554 555 tileOptionMenu.add(new JMenuItem(new AbstractAction( 556 tr("Load All Error Tiles")) { 557 @Override 558 public void actionPerformed(ActionEvent ae) { 559 loadAllErrorTiles(true); 560 redraw(); 561 } 562 })); 563 564 // increase and decrease commands 565 tileOptionMenu.add(new JMenuItem(new AbstractAction( 566 tr("Increase zoom")) { 567 @Override 568 public void actionPerformed(ActionEvent ae) { 569 increaseZoomLevel(); 570 redraw(); 571 } 572 })); 573 574 tileOptionMenu.add(new JMenuItem(new AbstractAction( 575 tr("Decrease zoom")) { 576 @Override 577 public void actionPerformed(ActionEvent ae) { 578 decreaseZoomLevel(); 579 redraw(); 580 } 581 })); 582 583 tileOptionMenu.add(new JMenuItem(new AbstractAction( 584 tr("Snap to tile size")) { 585 @Override 586 public void actionPerformed(ActionEvent ae) { 587 double new_factor = Math.sqrt(getScaleFactor(currentZoomLevel)); 588 Main.map.mapView.zoomToFactor(new_factor); 589 redraw(); 590 } 591 })); 592 593 tileOptionMenu.add(new JMenuItem(new AbstractAction( 594 tr("Flush Tile Cache")) { 595 @Override 596 public void actionPerformed(ActionEvent ae) { 597 new PleaseWaitRunnable(tr("Flush Tile Cache")) { 598 @Override 599 protected void realRun() throws SAXException, IOException, 600 OsmTransferException { 601 clearTileCache(getProgressMonitor()); 602 } 603 604 @Override 605 protected void finish() { 606 } 607 608 @Override 609 protected void cancel() { 610 } 611 }.run(); 612 } 613 })); 614 // end of adding menu commands 615 616 final MouseAdapter adapter = new MouseAdapter() { 617 @Override 618 public void mouseClicked(MouseEvent e) { 619 if (!isVisible()) return; 620 if (e.getButton() == MouseEvent.BUTTON3) { 621 clickedTile = getTileForPixelpos(e.getX(), e.getY()); 622 tileOptionMenu.show(e.getComponent(), e.getX(), e.getY()); 623 } else if (e.getButton() == MouseEvent.BUTTON1) { 624 attribution.handleAttribution(e.getPoint(), true); 625 } 626 } 627 }; 628 Main.map.mapView.addMouseListener(adapter); 629 630 MapView.addLayerChangeListener(new LayerChangeListener() { 631 @Override 632 public void activeLayerChange(Layer oldLayer, Layer newLayer) { 633 // 634 } 635 636 @Override 637 public void layerAdded(Layer newLayer) { 638 // 639 } 640 641 @Override 642 public void layerRemoved(Layer oldLayer) { 643 if (oldLayer == TMSLayer.this) { 644 Main.map.mapView.removeMouseListener(adapter); 645 MapView.removeLayerChangeListener(this); 646 } 647 } 648 }); 649 } 650 651 void zoomChanged() { 652 /*if (debug) { 653 Main.debug("zoomChanged(): " + currentZoomLevel); 654 }*/ 655 needRedraw = true; 656 JobDispatcher.getInstance().cancelOutstandingJobs(); 657 tileRequestsOutstanding.clear(); 658 } 659 660 int getMaxZoomLvl() { 661 if (info.getMaxZoom() != 0) 662 return checkMaxZoomLvl(info.getMaxZoom(), tileSource); 663 else 664 return getMaxZoomLvl(tileSource); 665 } 666 667 int getMinZoomLvl() { 668 return getMinZoomLvl(tileSource); 669 } 670 671 /** 672 * Zoom in, go closer to map. 673 * 674 * @return true, if zoom increasing was successfull, false othervise 675 */ 676 public boolean zoomIncreaseAllowed() { 677 boolean zia = currentZoomLevel < this.getMaxZoomLvl(); 678 /*if (debug) { 679 Main.debug("zoomIncreaseAllowed(): " + zia + " " + currentZoomLevel + " vs. " + this.getMaxZoomLvl() ); 680 }*/ 681 return zia; 682 } 683 684 public boolean increaseZoomLevel() { 685 if (zoomIncreaseAllowed()) { 686 currentZoomLevel++; 687 /*if (debug) { 688 Main.debug("increasing zoom level to: " + currentZoomLevel); 689 }*/ 690 zoomChanged(); 691 } else { 692 Main.warn("Current zoom level ("+currentZoomLevel+") could not be increased. "+ 693 "Max.zZoom Level "+this.getMaxZoomLvl()+" reached."); 694 return false; 695 } 696 return true; 697 } 698 699 public boolean setZoomLevel(int zoom) { 700 if (zoom == currentZoomLevel) return true; 701 if (zoom > this.getMaxZoomLvl()) return false; 702 if (zoom < this.getMinZoomLvl()) return false; 703 currentZoomLevel = zoom; 704 zoomChanged(); 705 return true; 706 } 707 708 /** 709 * Check if zooming out is allowed 710 * 711 * @return true, if zooming out is allowed (currentZoomLevel > minZoomLevel) 712 */ 713 public boolean zoomDecreaseAllowed() { 714 return currentZoomLevel > this.getMinZoomLvl(); 715 } 716 717 /** 718 * Zoom out from map. 719 * 720 * @return true, if zoom increasing was successfull, false othervise 721 */ 722 public boolean decreaseZoomLevel() { 723 //int minZoom = this.getMinZoomLvl(); 724 if (zoomDecreaseAllowed()) { 725 /*if (debug) { 726 Main.debug("decreasing zoom level to: " + currentZoomLevel); 727 }*/ 728 currentZoomLevel--; 729 zoomChanged(); 730 } else { 731 /*Main.debug("Current zoom level could not be decreased. Min. zoom level "+minZoom+" reached.");*/ 732 return false; 733 } 734 return true; 735 } 736 737 /* 738 * We use these for quick, hackish calculations. They 739 * are temporary only and intentionally not inserted 740 * into the tileCache. 741 */ 742 synchronized Tile tempCornerTile(Tile t) { 743 int x = t.getXtile() + 1; 744 int y = t.getYtile() + 1; 745 int zoom = t.getZoom(); 746 Tile tile = getTile(x, y, zoom); 747 if (tile != null) 748 return tile; 749 return new Tile(tileSource, x, y, zoom); 750 } 751 752 synchronized Tile getOrCreateTile(int x, int y, int zoom) { 753 Tile tile = getTile(x, y, zoom); 754 if (tile == null) { 755 tile = new Tile(tileSource, x, y, zoom); 756 tileCache.addTile(tile); 757 tile.loadPlaceholderFromCache(tileCache); 758 } 759 return tile; 760 } 761 762 /* 763 * This can and will return null for tiles that are not 764 * already in the cache. 765 */ 766 synchronized Tile getTile(int x, int y, int zoom) { 767 int max = (1 << zoom); 768 if (x < 0 || x >= max || y < 0 || y >= max) 769 return null; 770 Tile tile = tileCache.getTile(tileSource, x, y, zoom); 771 return tile; 772 } 773 774 synchronized boolean loadTile(Tile tile, boolean force) { 775 if (tile == null) 776 return false; 777 if (!force && (tile.hasError() || tile.isLoaded())) 778 return false; 779 if (tile.isLoading()) 780 return false; 781 if (tileRequestsOutstanding.contains(tile)) 782 return false; 783 tileRequestsOutstanding.add(tile); 784 JobDispatcher.getInstance().addJob(tileLoader.createTileLoaderJob(tile)); 785 return true; 786 } 787 788 void loadAllTiles(boolean force) { 789 MapView mv = Main.map.mapView; 790 EastNorth topLeft = mv.getEastNorth(0, 0); 791 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight()); 792 793 TileSet ts = new TileSet(topLeft, botRight, currentZoomLevel); 794 795 // if there is more than 18 tiles on screen in any direction, do not 796 // load all tiles! 797 if (ts.tooLarge()) { 798 Main.warn("Not downloading all tiles because there is more than 18 tiles on an axis!"); 799 return; 800 } 801 ts.loadAllTiles(force); 802 } 803 804 void loadAllErrorTiles(boolean force) { 805 MapView mv = Main.map.mapView; 806 EastNorth topLeft = mv.getEastNorth(0, 0); 807 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight()); 808 809 TileSet ts = new TileSet(topLeft, botRight, currentZoomLevel); 810 811 ts.loadAllErrorTiles(force); 812 } 813 814 /* 815 * Attempt to approximate how much the image is being scaled. For instance, 816 * a 100x100 image being scaled to 50x50 would return 0.25. 817 */ 818 Image lastScaledImage = null; 819 @Override 820 public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height) { 821 boolean done = ((infoflags & (ERROR | FRAMEBITS | ALLBITS)) != 0); 822 needRedraw = true; 823 /*if (debug) { 824 Main.debug("imageUpdate() done: " + done + " calling repaint"); 825 }*/ 826 Main.map.repaint(done ? 0 : 100); 827 return !done; 828 } 829 830 boolean imageLoaded(Image i) { 831 if (i == null) 832 return false; 833 int status = Toolkit.getDefaultToolkit().checkImage(i, -1, -1, this); 834 if ((status & ALLBITS) != 0) 835 return true; 836 return false; 837 } 838 839 /** 840 * Returns the image for the given tile if both tile and image are loaded. 841 * Otherwise returns null. 842 * 843 * @param tile the Tile for which the image should be returned 844 * @return the image of the tile or null. 845 */ 846 Image getLoadedTileImage(Tile tile) { 847 if (!tile.isLoaded()) 848 return null; 849 Image img = tile.getImage(); 850 if (!imageLoaded(img)) 851 return null; 852 return img; 853 } 854 855 LatLon tileLatLon(Tile t) { 856 int zoom = t.getZoom(); 857 return new LatLon(tileSource.tileYToLat(t.getYtile(), zoom), 858 tileSource.tileXToLon(t.getXtile(), zoom)); 859 } 860 861 Rectangle tileToRect(Tile t1) { 862 /* 863 * We need to get a box in which to draw, so advance by one tile in 864 * each direction to find the other corner of the box. 865 * Note: this somewhat pollutes the tile cache 866 */ 867 Tile t2 = tempCornerTile(t1); 868 Rectangle rect = new Rectangle(pixelPos(t1)); 869 rect.add(pixelPos(t2)); 870 return rect; 871 } 872 873 // 'source' is the pixel coordinates for the area that 874 // the img is capable of filling in. However, we probably 875 // only want a portion of it. 876 // 877 // 'border' is the screen cordinates that need to be drawn. 878 // We must not draw outside of it. 879 void drawImageInside(Graphics g, Image sourceImg, Rectangle source, Rectangle border) { 880 Rectangle target = source; 881 882 // If a border is specified, only draw the intersection 883 // if what we have combined with what we are supposed 884 // to draw. 885 if (border != null) { 886 target = source.intersection(border); 887 /*if (debug) { 888 Main.debug("source: " + source + "\nborder: " + border + "\nintersection: " + target); 889 }*/ 890 } 891 892 // All of the rectangles are in screen coordinates. We need 893 // to how these correlate to the sourceImg pixels. We could 894 // avoid doing this by scaling the image up to the 'source' size, 895 // but this should be cheaper. 896 // 897 // In some projections, x any y are scaled differently enough to 898 // cause a pixel or two of fudge. Calculate them separately. 899 double imageYScaling = sourceImg.getHeight(this) / source.getHeight(); 900 double imageXScaling = sourceImg.getWidth(this) / source.getWidth(); 901 902 // How many pixels into the 'source' rectangle are we drawing? 903 int screen_x_offset = target.x - source.x; 904 int screen_y_offset = target.y - source.y; 905 // And how many pixels into the image itself does that 906 // correlate to? 907 int img_x_offset = (int)(screen_x_offset * imageXScaling); 908 int img_y_offset = (int)(screen_y_offset * imageYScaling); 909 // Now calculate the other corner of the image that we need 910 // by scaling the 'target' rectangle's dimensions. 911 int img_x_end = img_x_offset + (int)(target.getWidth() * imageXScaling); 912 int img_y_end = img_y_offset + (int)(target.getHeight() * imageYScaling); 913 914 /*if (debug) { 915 Main.debug("drawing image into target rect: " + target); 916 }*/ 917 g.drawImage(sourceImg, 918 target.x, target.y, 919 target.x + target.width, target.y + target.height, 920 img_x_offset, img_y_offset, 921 img_x_end, img_y_end, 922 this); 923 if (PROP_FADE_AMOUNT.get() != 0) { 924 // dimm by painting opaque rect... 925 g.setColor(getFadeColorWithAlpha()); 926 g.fillRect(target.x, target.y, 927 target.width, target.height); 928 } 929 } 930 931 // This function is called for several zoom levels, not just 932 // the current one. It should not trigger any tiles to be 933 // downloaded. It should also avoid polluting the tile cache 934 // with any tiles since these tiles are not mandatory. 935 // 936 // The "border" tile tells us the boundaries of where we may 937 // draw. It will not be from the zoom level that is being 938 // drawn currently. If drawing the displayZoomLevel, 939 // border is null and we draw the entire tile set. 940 List<Tile> paintTileImages(Graphics g, TileSet ts, int zoom, Tile border) { 941 if (zoom <= 0) return Collections.emptyList(); 942 Rectangle borderRect = null; 943 if (border != null) { 944 borderRect = tileToRect(border); 945 } 946 List<Tile> missedTiles = new LinkedList<Tile>(); 947 // The callers of this code *require* that we return any tiles 948 // that we do not draw in missedTiles. ts.allExistingTiles() by 949 // default will only return already-existing tiles. However, we 950 // need to return *all* tiles to the callers, so force creation 951 // here. 952 //boolean forceTileCreation = true; 953 for (Tile tile : ts.allTilesCreate()) { 954 Image img = getLoadedTileImage(tile); 955 if (img == null || tile.hasError()) { 956 /*if (debug) { 957 Main.debug("missed tile: " + tile); 958 }*/ 959 missedTiles.add(tile); 960 continue; 961 } 962 Rectangle sourceRect = tileToRect(tile); 963 if (borderRect != null && !sourceRect.intersects(borderRect)) { 964 continue; 965 } 966 drawImageInside(g, img, sourceRect, borderRect); 967 }// end of for 968 return missedTiles; 969 } 970 971 void myDrawString(Graphics g, String text, int x, int y) { 972 Color oldColor = g.getColor(); 973 g.setColor(Color.black); 974 g.drawString(text,x+1,y+1); 975 g.setColor(oldColor); 976 g.drawString(text,x,y); 977 } 978 979 void paintTileText(TileSet ts, Tile tile, Graphics g, MapView mv, int zoom, Tile t) { 980 int fontHeight = g.getFontMetrics().getHeight(); 981 if (tile == null) 982 return; 983 Point p = pixelPos(t); 984 int texty = p.y + 2 + fontHeight; 985 986 /*if (PROP_DRAW_DEBUG.get()) { 987 myDrawString(g, "x=" + t.getXtile() + " y=" + t.getYtile() + " z=" + zoom + "", p.x + 2, texty); 988 texty += 1 + fontHeight; 989 if ((t.getXtile() % 32 == 0) && (t.getYtile() % 32 == 0)) { 990 myDrawString(g, "x=" + t.getXtile() / 32 + " y=" + t.getYtile() / 32 + " z=7", p.x + 2, texty); 991 texty += 1 + fontHeight; 992 } 993 }*/// end of if draw debug 994 995 if (tile == showMetadataTile) { 996 String md = tile.toString(); 997 if (md != null) { 998 myDrawString(g, md, p.x + 2, texty); 999 texty += 1 + fontHeight; 1000 } 1001 Map<String, String> meta = tile.getMetadata(); 1002 if (meta != null) { 1003 for (Map.Entry<String, String> entry : meta.entrySet()) { 1004 myDrawString(g, entry.getKey() + ": " + entry.getValue(), p.x + 2, texty); 1005 texty += 1 + fontHeight; 1006 } 1007 } 1008 } 1009 1010 /*String tileStatus = tile.getStatus(); 1011 if (!tile.isLoaded() && PROP_DRAW_DEBUG.get()) { 1012 myDrawString(g, tr("image " + tileStatus), p.x + 2, texty); 1013 texty += 1 + fontHeight; 1014 }*/ 1015 1016 if (tile.hasError() && showErrors) { 1017 myDrawString(g, tr("Error") + ": " + tr(tile.getErrorMessage()), p.x + 2, texty); 1018 texty += 1 + fontHeight; 1019 } 1020 1021 /*int xCursor = -1; 1022 int yCursor = -1; 1023 if (PROP_DRAW_DEBUG.get()) { 1024 if (yCursor < t.getYtile()) { 1025 if (t.getYtile() % 32 == 31) { 1026 g.fillRect(0, p.y - 1, mv.getWidth(), 3); 1027 } else { 1028 g.drawLine(0, p.y, mv.getWidth(), p.y); 1029 } 1030 yCursor = t.getYtile(); 1031 } 1032 // This draws the vertical lines for the entire 1033 // column. Only draw them for the top tile in 1034 // the column. 1035 if (xCursor < t.getXtile()) { 1036 if (t.getXtile() % 32 == 0) { 1037 // level 7 tile boundary 1038 g.fillRect(p.x - 1, 0, 3, mv.getHeight()); 1039 } else { 1040 g.drawLine(p.x, 0, p.x, mv.getHeight()); 1041 } 1042 xCursor = t.getXtile(); 1043 } 1044 }*/ 1045 } 1046 1047 private Point pixelPos(LatLon ll) { 1048 return Main.map.mapView.getPoint(Main.getProjection().latlon2eastNorth(ll).add(getDx(), getDy())); 1049 } 1050 1051 private Point pixelPos(Tile t) { 1052 double lon = tileSource.tileXToLon(t.getXtile(), t.getZoom()); 1053 LatLon tmpLL = new LatLon(tileSource.tileYToLat(t.getYtile(), t.getZoom()), lon); 1054 return pixelPos(tmpLL); 1055 } 1056 1057 private LatLon getShiftedLatLon(EastNorth en) { 1058 return Main.getProjection().eastNorth2latlon(en.add(-getDx(), -getDy())); 1059 } 1060 1061 private Coordinate getShiftedCoord(EastNorth en) { 1062 LatLon ll = getShiftedLatLon(en); 1063 return new Coordinate(ll.lat(),ll.lon()); 1064 } 1065 1066 private final TileSet nullTileSet = new TileSet((LatLon)null, (LatLon)null, 0); 1067 private class TileSet { 1068 int x0, x1, y0, y1; 1069 int zoom; 1070 int tileMax = -1; 1071 1072 /** 1073 * Create a TileSet by EastNorth bbox taking a layer shift in account 1074 */ 1075 TileSet(EastNorth topLeft, EastNorth botRight, int zoom) { 1076 this(getShiftedLatLon(topLeft), getShiftedLatLon(botRight),zoom); 1077 } 1078 1079 /** 1080 * Create a TileSet by known LatLon bbox without layer shift correction 1081 */ 1082 TileSet(LatLon topLeft, LatLon botRight, int zoom) { 1083 this.zoom = zoom; 1084 if (zoom == 0) 1085 return; 1086 1087 x0 = (int)tileSource.lonToTileX(topLeft.lon(), zoom); 1088 y0 = (int)tileSource.latToTileY(topLeft.lat(), zoom); 1089 x1 = (int)tileSource.lonToTileX(botRight.lon(), zoom); 1090 y1 = (int)tileSource.latToTileY(botRight.lat(), zoom); 1091 if (x0 > x1) { 1092 int tmp = x0; 1093 x0 = x1; 1094 x1 = tmp; 1095 } 1096 if (y0 > y1) { 1097 int tmp = y0; 1098 y0 = y1; 1099 y1 = tmp; 1100 } 1101 tileMax = (int)Math.pow(2.0, zoom); 1102 if (x0 < 0) { 1103 x0 = 0; 1104 } 1105 if (y0 < 0) { 1106 y0 = 0; 1107 } 1108 if (x1 > tileMax) { 1109 x1 = tileMax; 1110 } 1111 if (y1 > tileMax) { 1112 y1 = tileMax; 1113 } 1114 } 1115 1116 boolean tooSmall() { 1117 return this.tilesSpanned() < 2.1; 1118 } 1119 1120 boolean tooLarge() { 1121 return this.tilesSpanned() > 10; 1122 } 1123 1124 boolean insane() { 1125 return this.tilesSpanned() > 100; 1126 } 1127 1128 double tilesSpanned() { 1129 return Math.sqrt(1.0 * this.size()); 1130 } 1131 1132 int size() { 1133 int x_span = x1 - x0 + 1; 1134 int y_span = y1 - y0 + 1; 1135 return x_span * y_span; 1136 } 1137 1138 /* 1139 * Get all tiles represented by this TileSet that are 1140 * already in the tileCache. 1141 */ 1142 List<Tile> allExistingTiles() { 1143 return this.__allTiles(false); 1144 } 1145 1146 List<Tile> allTilesCreate() { 1147 return this.__allTiles(true); 1148 } 1149 1150 private List<Tile> __allTiles(boolean create) { 1151 // Tileset is either empty or too large 1152 if (zoom == 0 || this.insane()) 1153 return Collections.emptyList(); 1154 List<Tile> ret = new ArrayList<Tile>(); 1155 for (int x = x0; x <= x1; x++) { 1156 for (int y = y0; y <= y1; y++) { 1157 Tile t; 1158 if (create) { 1159 t = getOrCreateTile(x % tileMax, y % tileMax, zoom); 1160 } else { 1161 t = getTile(x % tileMax, y % tileMax, zoom); 1162 } 1163 if (t != null) { 1164 ret.add(t); 1165 } 1166 } 1167 } 1168 return ret; 1169 } 1170 1171 private List<Tile> allLoadedTiles() { 1172 List<Tile> ret = new ArrayList<Tile>(); 1173 for (Tile t : this.allExistingTiles()) { 1174 if (t.isLoaded()) 1175 ret.add(t); 1176 } 1177 return ret; 1178 } 1179 1180 void loadAllTiles(boolean force) { 1181 if (!autoLoad && !force) 1182 return; 1183 for (Tile t : this.allTilesCreate()) { 1184 loadTile(t, false); 1185 } 1186 } 1187 1188 void loadAllErrorTiles(boolean force) { 1189 if (!autoLoad && !force) 1190 return; 1191 for (Tile t : this.allTilesCreate()) { 1192 if (t.hasError()) { 1193 loadTile(t, true); 1194 } 1195 } 1196 } 1197 } 1198 1199 1200 private static class TileSetInfo { 1201 public boolean hasVisibleTiles = false; 1202 public boolean hasOverzoomedTiles = false; 1203 public boolean hasLoadingTiles = false; 1204 } 1205 1206 private static TileSetInfo getTileSetInfo(TileSet ts) { 1207 List<Tile> allTiles = ts.allExistingTiles(); 1208 TileSetInfo result = new TileSetInfo(); 1209 result.hasLoadingTiles = allTiles.size() < ts.size(); 1210 for (Tile t : allTiles) { 1211 if (t.isLoaded()) { 1212 if (!t.hasError()) { 1213 result.hasVisibleTiles = true; 1214 } 1215 if ("no-tile".equals(t.getValue("tile-info"))) { 1216 result.hasOverzoomedTiles = true; 1217 } 1218 } else { 1219 result.hasLoadingTiles = true; 1220 } 1221 } 1222 return result; 1223 } 1224 1225 private class DeepTileSet { 1226 final EastNorth topLeft, botRight; 1227 final int minZoom, maxZoom; 1228 private final TileSet[] tileSets; 1229 private final TileSetInfo[] tileSetInfos; 1230 public DeepTileSet(EastNorth topLeft, EastNorth botRight, int minZoom, int maxZoom) { 1231 this.topLeft = topLeft; 1232 this.botRight = botRight; 1233 this.minZoom = minZoom; 1234 this.maxZoom = maxZoom; 1235 this.tileSets = new TileSet[maxZoom - minZoom + 1]; 1236 this.tileSetInfos = new TileSetInfo[maxZoom - minZoom + 1]; 1237 } 1238 public TileSet getTileSet(int zoom) { 1239 if (zoom < minZoom) 1240 return nullTileSet; 1241 TileSet ts = tileSets[zoom-minZoom]; 1242 if (ts == null) { 1243 ts = new TileSet(topLeft, botRight, zoom); 1244 tileSets[zoom-minZoom] = ts; 1245 } 1246 return ts; 1247 } 1248 public TileSetInfo getTileSetInfo(int zoom) { 1249 if (zoom < minZoom) 1250 return new TileSetInfo(); 1251 TileSetInfo tsi = tileSetInfos[zoom-minZoom]; 1252 if (tsi == null) { 1253 tsi = TMSLayer.getTileSetInfo(getTileSet(zoom)); 1254 tileSetInfos[zoom-minZoom] = tsi; 1255 } 1256 return tsi; 1257 } 1258 } 1259 1260 @Override 1261 public void paint(Graphics2D g, MapView mv, Bounds bounds) { 1262 //long start = System.currentTimeMillis(); 1263 EastNorth topLeft = mv.getEastNorth(0, 0); 1264 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight()); 1265 1266 if (botRight.east() == 0.0 || botRight.north() == 0) { 1267 /*Main.debug("still initializing??");*/ 1268 // probably still initializing 1269 return; 1270 } 1271 1272 needRedraw = false; 1273 1274 int zoom = currentZoomLevel; 1275 if (autoZoom) { 1276 double pixelScaling = getScaleFactor(zoom); 1277 if (pixelScaling > 3 || pixelScaling < 0.7) { 1278 zoom = getBestZoom(); 1279 } 1280 } 1281 1282 DeepTileSet dts = new DeepTileSet(topLeft, botRight, getMinZoomLvl(), zoom); 1283 TileSet ts = dts.getTileSet(zoom); 1284 1285 int displayZoomLevel = zoom; 1286 1287 boolean noTilesAtZoom = false; 1288 if (autoZoom && autoLoad) { 1289 // Auto-detection of tilesource maxzoom (currently fully works only for Bing) 1290 TileSetInfo tsi = dts.getTileSetInfo(zoom); 1291 if (!tsi.hasVisibleTiles && (!tsi.hasLoadingTiles || tsi.hasOverzoomedTiles)) { 1292 noTilesAtZoom = true; 1293 } 1294 // Find highest zoom level with at least one visible tile 1295 for (int tmpZoom = zoom; tmpZoom > dts.minZoom; tmpZoom--) { 1296 if (dts.getTileSetInfo(tmpZoom).hasVisibleTiles) { 1297 displayZoomLevel = tmpZoom; 1298 break; 1299 } 1300 } 1301 // Do binary search between currentZoomLevel and displayZoomLevel 1302 while (zoom > displayZoomLevel && !tsi.hasVisibleTiles && tsi.hasOverzoomedTiles){ 1303 zoom = (zoom + displayZoomLevel)/2; 1304 tsi = dts.getTileSetInfo(zoom); 1305 } 1306 1307 setZoomLevel(zoom); 1308 1309 // If all tiles at displayZoomLevel is loaded, load all tiles at next zoom level 1310 // to make sure there're really no more zoom levels 1311 if (zoom == displayZoomLevel && !tsi.hasLoadingTiles && zoom < dts.maxZoom) { 1312 zoom++; 1313 tsi = dts.getTileSetInfo(zoom); 1314 } 1315 // When we have overzoomed tiles and all tiles at current zoomlevel is loaded, 1316 // load tiles at previovus zoomlevels until we have all tiles on screen is loaded. 1317 while (zoom > dts.minZoom && tsi.hasOverzoomedTiles && !tsi.hasLoadingTiles) { 1318 zoom--; 1319 tsi = dts.getTileSetInfo(zoom); 1320 } 1321 ts = dts.getTileSet(zoom); 1322 } else if (autoZoom) { 1323 setZoomLevel(zoom); 1324 } 1325 1326 // Too many tiles... refuse to download 1327 if (!ts.tooLarge()) { 1328 //Main.debug("size: " + ts.size() + " spanned: " + ts.tilesSpanned()); 1329 ts.loadAllTiles(false); 1330 } 1331 1332 if (displayZoomLevel != zoom) { 1333 ts = dts.getTileSet(displayZoomLevel); 1334 } 1335 1336 g.setColor(Color.DARK_GRAY); 1337 1338 List<Tile> missedTiles = this.paintTileImages(g, ts, displayZoomLevel, null); 1339 int otherZooms[] = { -1, 1, -2, 2, -3, -4, -5}; 1340 for (int zoomOffset : otherZooms) { 1341 if (!autoZoom) { 1342 break; 1343 } 1344 int newzoom = displayZoomLevel + zoomOffset; 1345 if (newzoom < MIN_ZOOM) { 1346 continue; 1347 } 1348 if (missedTiles.size() <= 0) { 1349 break; 1350 } 1351 List<Tile> newlyMissedTiles = new LinkedList<Tile>(); 1352 for (Tile missed : missedTiles) { 1353 if ("no-tile".equals(missed.getValue("tile-info")) && zoomOffset > 0) { 1354 // Don't try to paint from higher zoom levels when tile is overzoomed 1355 newlyMissedTiles.add(missed); 1356 continue; 1357 } 1358 Tile t2 = tempCornerTile(missed); 1359 LatLon topLeft2 = tileLatLon(missed); 1360 LatLon botRight2 = tileLatLon(t2); 1361 TileSet ts2 = new TileSet(topLeft2, botRight2, newzoom); 1362 // Instantiating large TileSets is expensive. If there 1363 // are no loaded tiles, don't bother even trying. 1364 if (ts2.allLoadedTiles().size() == 0) { 1365 newlyMissedTiles.add(missed); 1366 continue; 1367 } 1368 if (ts2.tooLarge()) { 1369 continue; 1370 } 1371 newlyMissedTiles.addAll(this.paintTileImages(g, ts2, newzoom, missed)); 1372 } 1373 missedTiles = newlyMissedTiles; 1374 } 1375 /*if (debug && missedTiles.size() > 0) { 1376 Main.debug("still missed "+missedTiles.size()+" in the end"); 1377 }*/ 1378 g.setColor(Color.red); 1379 g.setFont(InfoFont); 1380 1381 // The current zoom tileset should have all of its tiles 1382 // due to the loadAllTiles(), unless it to tooLarge() 1383 for (Tile t : ts.allExistingTiles()) { 1384 this.paintTileText(ts, t, g, mv, displayZoomLevel, t); 1385 } 1386 1387 attribution.paintAttribution(g, mv.getWidth(), mv.getHeight(), getShiftedCoord(topLeft), getShiftedCoord(botRight), displayZoomLevel, this); 1388 1389 //g.drawString("currentZoomLevel=" + currentZoomLevel, 120, 120); 1390 g.setColor(Color.lightGray); 1391 if (!autoZoom) { 1392 if (ts.insane()) { 1393 myDrawString(g, tr("zoom in to load any tiles"), 120, 120); 1394 } else if (ts.tooLarge()) { 1395 myDrawString(g, tr("zoom in to load more tiles"), 120, 120); 1396 } else if (ts.tooSmall()) { 1397 myDrawString(g, tr("increase zoom level to see more detail"), 120, 120); 1398 } 1399 } 1400 if (noTilesAtZoom) { 1401 myDrawString(g, tr("No tiles at this zoom level"), 120, 120); 1402 } 1403 /*if (debug) { 1404 myDrawString(g, tr("Current zoom: {0}", currentZoomLevel), 50, 140); 1405 myDrawString(g, tr("Display zoom: {0}", displayZoomLevel), 50, 155); 1406 myDrawString(g, tr("Pixel scale: {0}", getScaleFactor(currentZoomLevel)), 50, 170); 1407 myDrawString(g, tr("Best zoom: {0}", Math.log(getScaleFactor(1))/Math.log(2)/2+1), 50, 185); 1408 }*/ 1409 } 1410 1411 /** 1412 * This isn't very efficient, but it is only used when the 1413 * user right-clicks on the map. 1414 */ 1415 Tile getTileForPixelpos(int px, int py) { 1416 /*if (debug) { 1417 Main.debug("getTileForPixelpos("+px+", "+py+")"); 1418 }*/ 1419 MapView mv = Main.map.mapView; 1420 Point clicked = new Point(px, py); 1421 EastNorth topLeft = mv.getEastNorth(0, 0); 1422 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight()); 1423 int z = currentZoomLevel; 1424 TileSet ts = new TileSet(topLeft, botRight, z); 1425 1426 if (!ts.tooLarge()) { 1427 ts.loadAllTiles(false); // make sure there are tile objects for all tiles 1428 } 1429 Tile clickedTile = null; 1430 for (Tile t1 : ts.allExistingTiles()) { 1431 Tile t2 = tempCornerTile(t1); 1432 Rectangle r = new Rectangle(pixelPos(t1)); 1433 r.add(pixelPos(t2)); 1434 /*if (debug) { 1435 Main.debug("r: " + r + " clicked: " + clicked); 1436 }*/ 1437 if (!r.contains(clicked)) { 1438 continue; 1439 } 1440 clickedTile = t1; 1441 break; 1442 } 1443 if (clickedTile == null) 1444 return null; 1445 /*Main.debug("Clicked on tile: " + clickedTile.getXtile() + " " + clickedTile.getYtile() + 1446 " currentZoomLevel: " + currentZoomLevel);*/ 1447 return clickedTile; 1448 } 1449 1450 @Override 1451 public Action[] getMenuEntries() { 1452 return new Action[] { 1453 LayerListDialog.getInstance().createShowHideLayerAction(), 1454 LayerListDialog.getInstance().createDeleteLayerAction(), 1455 SeparatorLayerAction.INSTANCE, 1456 // color, 1457 new OffsetAction(), 1458 new RenameLayerAction(this.getAssociatedFile(), this), 1459 SeparatorLayerAction.INSTANCE, 1460 new LayerListPopup.InfoAction(this) }; 1461 } 1462 1463 @Override 1464 public String getToolTipText() { 1465 return null; 1466 } 1467 1468 @Override 1469 public void visitBoundingBox(BoundingXYVisitor v) { 1470 } 1471 1472 @Override 1473 public boolean isChanged() { 1474 return needRedraw; 1475 } 1476 1477 @Override 1478 public boolean isProjectionSupported(Projection proj) { 1479 return "EPSG:3857".equals(proj.toCode()) || "EPSG:4326".equals(proj.toCode()); 1480 } 1481 1482 @Override 1483 public String nameSupportedProjections() { 1484 return tr("EPSG:4326 and Mercator projection are supported"); 1485 } 1486 }