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 }