source: josm/trunk/src/org/openstreetmap/josm/gui/layer/TMSLayer.java@ 8041

Last change on this file since 8041 was 7999, checked in by Don-vip, 9 years ago

fix #11061 - Remote API imagery cookies parameter is not handled properly (patch by p.janaszek)
  • Property svn:eol-style set to native
File size: 54.0 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.gui.layer;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.awt.Color;
7import java.awt.Font;
8import java.awt.Graphics;
9import java.awt.Graphics2D;
10import java.awt.Image;
11import java.awt.Point;
12import java.awt.Rectangle;
13import java.awt.Toolkit;
14import java.awt.event.ActionEvent;
15import java.awt.event.MouseAdapter;
16import java.awt.event.MouseEvent;
17import java.awt.image.ImageObserver;
18import java.io.File;
19import java.io.IOException;
20import java.io.StringReader;
21import java.net.URL;
22import java.util.ArrayList;
23import java.util.Collections;
24import java.util.HashSet;
25import java.util.LinkedList;
26import java.util.List;
27import java.util.Map;
28import java.util.Map.Entry;
29import java.util.Scanner;
30import java.util.Set;
31import java.util.concurrent.Callable;
32import java.util.regex.Matcher;
33import java.util.regex.Pattern;
34
35import javax.swing.AbstractAction;
36import javax.swing.Action;
37import javax.swing.JCheckBoxMenuItem;
38import javax.swing.JMenuItem;
39import javax.swing.JOptionPane;
40import javax.swing.JPopupMenu;
41
42import org.openstreetmap.gui.jmapviewer.AttributionSupport;
43import org.openstreetmap.gui.jmapviewer.Coordinate;
44import org.openstreetmap.gui.jmapviewer.JobDispatcher;
45import org.openstreetmap.gui.jmapviewer.MemoryTileCache;
46import org.openstreetmap.gui.jmapviewer.OsmFileCacheTileLoader;
47import org.openstreetmap.gui.jmapviewer.OsmTileLoader;
48import org.openstreetmap.gui.jmapviewer.TMSFileCacheTileLoader;
49import org.openstreetmap.gui.jmapviewer.Tile;
50import org.openstreetmap.gui.jmapviewer.interfaces.CachedTileLoader;
51import org.openstreetmap.gui.jmapviewer.interfaces.TileClearController;
52import org.openstreetmap.gui.jmapviewer.interfaces.TileLoaderListener;
53import org.openstreetmap.gui.jmapviewer.interfaces.TileSource;
54import org.openstreetmap.gui.jmapviewer.tilesources.BingAerialTileSource;
55import org.openstreetmap.gui.jmapviewer.tilesources.ScanexTileSource;
56import org.openstreetmap.gui.jmapviewer.tilesources.TMSTileSource;
57import org.openstreetmap.gui.jmapviewer.tilesources.TemplatedTMSTileSource;
58import org.openstreetmap.josm.Main;
59import org.openstreetmap.josm.actions.RenameLayerAction;
60import org.openstreetmap.josm.data.Bounds;
61import org.openstreetmap.josm.data.Version;
62import org.openstreetmap.josm.data.coor.EastNorth;
63import org.openstreetmap.josm.data.coor.LatLon;
64import org.openstreetmap.josm.data.imagery.ImageryInfo;
65import org.openstreetmap.josm.data.imagery.ImageryInfo.ImageryType;
66import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
67import org.openstreetmap.josm.data.preferences.BooleanProperty;
68import org.openstreetmap.josm.data.preferences.IntegerProperty;
69import org.openstreetmap.josm.data.preferences.StringProperty;
70import org.openstreetmap.josm.data.projection.Projection;
71import org.openstreetmap.josm.gui.MapFrame;
72import org.openstreetmap.josm.gui.MapView;
73import org.openstreetmap.josm.gui.MapView.LayerChangeListener;
74import org.openstreetmap.josm.gui.PleaseWaitRunnable;
75import org.openstreetmap.josm.gui.dialogs.LayerListDialog;
76import org.openstreetmap.josm.gui.dialogs.LayerListPopup;
77import org.openstreetmap.josm.gui.progress.ProgressMonitor;
78import org.openstreetmap.josm.gui.progress.ProgressMonitor.CancelListener;
79import org.openstreetmap.josm.io.CacheCustomContent;
80import org.openstreetmap.josm.io.OsmTransferException;
81import org.openstreetmap.josm.io.UTFInputStreamReader;
82import org.openstreetmap.josm.tools.CheckParameterUtil;
83import org.openstreetmap.josm.tools.Utils;
84import org.xml.sax.InputSource;
85import org.xml.sax.SAXException;
86
87/**
88 * Class that displays a slippy map layer.
89 *
90 * @author Frederik Ramm
91 * @author LuVar <lubomir.varga@freemap.sk>
92 * @author Dave Hansen <dave@sr71.net>
93 * @author Upliner <upliner@gmail.com>
94 *
95 */
96public class TMSLayer extends ImageryLayer implements ImageObserver, TileLoaderListener {
97 public static final String PREFERENCE_PREFIX = "imagery.tms";
98
99 public static final int MAX_ZOOM = 30;
100 public static final int MIN_ZOOM = 2;
101 public static final int DEFAULT_MAX_ZOOM = 20;
102 public static final int DEFAULT_MIN_ZOOM = 2;
103
104 public static final BooleanProperty PROP_DEFAULT_AUTOZOOM = new BooleanProperty(PREFERENCE_PREFIX + ".default_autozoom", true);
105 public static final BooleanProperty PROP_DEFAULT_AUTOLOAD = new BooleanProperty(PREFERENCE_PREFIX + ".default_autoload", true);
106 public static final BooleanProperty PROP_DEFAULT_SHOWERRORS = new BooleanProperty(PREFERENCE_PREFIX + ".default_showerrors", true);
107 public static final IntegerProperty PROP_MIN_ZOOM_LVL = new IntegerProperty(PREFERENCE_PREFIX + ".min_zoom_lvl", DEFAULT_MIN_ZOOM);
108 public static final IntegerProperty PROP_MAX_ZOOM_LVL = new IntegerProperty(PREFERENCE_PREFIX + ".max_zoom_lvl", DEFAULT_MAX_ZOOM);
109 //public static final BooleanProperty PROP_DRAW_DEBUG = new BooleanProperty(PREFERENCE_PREFIX + ".draw_debug", false);
110 public static final BooleanProperty PROP_ADD_TO_SLIPPYMAP_CHOOSER = new BooleanProperty(PREFERENCE_PREFIX + ".add_to_slippymap_chooser", true);
111 public static final IntegerProperty PROP_TMS_JOBS = new IntegerProperty("tmsloader.maxjobs", 25);
112 public static final StringProperty PROP_TILECACHE_DIR;
113
114 static {
115 String defPath = null;
116 try {
117 defPath = new File(Main.pref.getCacheDirectory(), "tms").getAbsolutePath();
118 } catch (SecurityException e) {
119 Main.warn(e);
120 }
121 PROP_TILECACHE_DIR = new StringProperty(PREFERENCE_PREFIX + ".tilecache", defPath);
122 }
123
124 public interface TileLoaderFactory {
125 OsmTileLoader makeTileLoader(TileLoaderListener listener);
126 }
127
128 protected MemoryTileCache tileCache;
129 protected TileSource tileSource;
130 protected OsmTileLoader tileLoader;
131
132 public static TileLoaderFactory loaderFactory = new TileLoaderFactory() {
133 @Override
134 public OsmTileLoader makeTileLoader(TileLoaderListener listener) {
135 String cachePath = TMSLayer.PROP_TILECACHE_DIR.get();
136 if (cachePath != null && !cachePath.isEmpty()) {
137 try {
138 OsmFileCacheTileLoader loader;
139 loader = new TMSFileCacheTileLoader(listener, new File(cachePath));
140 loader.headers.put("User-Agent", Version.getInstance().getFullAgentString());
141 return loader;
142 } catch (IOException e) {
143 Main.warn(e);
144 }
145 }
146 return null;
147 }
148 };
149
150 /**
151 * Plugins that wish to set custom tile loader should call this method
152 */
153 public static void setCustomTileLoaderFactory(TileLoaderFactory loaderFactory) {
154 TMSLayer.loaderFactory = loaderFactory;
155 }
156
157 private Set<Tile> tileRequestsOutstanding = new HashSet<>();
158
159 @Override
160 public synchronized void tileLoadingFinished(Tile tile, boolean success) {
161 if (tile.hasError()) {
162 success = false;
163 tile.setImage(null);
164 }
165 if (sharpenLevel != 0 && success) {
166 tile.setImage(sharpenImage(tile.getImage()));
167 }
168 tile.setLoaded(true);
169 needRedraw = true;
170 if (Main.map != null) {
171 Main.map.repaint(100);
172 }
173 tileRequestsOutstanding.remove(tile);
174 if (Main.isDebugEnabled()) {
175 Main.debug("tileLoadingFinished() tile: " + tile + " success: " + success);
176 }
177 }
178
179 private static class TmsTileClearController implements TileClearController, CancelListener {
180
181 private final ProgressMonitor monitor;
182 private boolean cancel = false;
183
184 public TmsTileClearController(ProgressMonitor monitor) {
185 this.monitor = monitor;
186 this.monitor.addCancelListener(this);
187 }
188
189 @Override
190 public void initClearDir(File dir) {
191 }
192
193 @Override
194 public void initClearFiles(File[] files) {
195 monitor.setTicksCount(files.length);
196 monitor.setTicks(0);
197 }
198
199 @Override
200 public boolean cancel() {
201 return cancel;
202 }
203
204 @Override
205 public void fileDeleted(File file) {
206 monitor.setTicks(monitor.getTicks()+1);
207 }
208
209 @Override
210 public void clearFinished() {
211 monitor.finishTask();
212 }
213
214 @Override
215 public void operationCanceled() {
216 cancel = true;
217 }
218 }
219
220 /**
221 * Clears the tile cache.
222 *
223 * If the current tileLoader is an instance of OsmTileLoader, a new
224 * TmsTileClearController is created and passed to the according clearCache
225 * method.
226 *
227 * @param monitor
228 * @see MemoryTileCache#clear()
229 * @see OsmFileCacheTileLoader#clearCache(org.openstreetmap.gui.jmapviewer.interfaces.TileSource, org.openstreetmap.gui.jmapviewer.interfaces.TileClearController)
230 */
231 void clearTileCache(ProgressMonitor monitor) {
232 tileCache.clear();
233 if (tileLoader instanceof CachedTileLoader) {
234 ((CachedTileLoader)tileLoader).clearCache(tileSource, new TmsTileClearController(monitor));
235 }
236 }
237
238 /**
239 * Zoomlevel at which tiles is currently downloaded.
240 * Initial zoom lvl is set to bestZoom
241 */
242 public int currentZoomLevel;
243
244 private Tile clickedTile;
245 private boolean needRedraw;
246 private JPopupMenu tileOptionMenu;
247 JCheckBoxMenuItem autoZoomPopup;
248 JCheckBoxMenuItem autoLoadPopup;
249 JCheckBoxMenuItem showErrorsPopup;
250 Tile showMetadataTile;
251 private AttributionSupport attribution = new AttributionSupport();
252 private static final Font InfoFont = new Font("sansserif", Font.BOLD, 13);
253
254 protected boolean autoZoom;
255 protected boolean autoLoad;
256 protected boolean showErrors;
257
258 /**
259 * Initiates a repaint of Main.map
260 *
261 * @see Main#map
262 * @see MapFrame#repaint()
263 */
264 void redraw() {
265 needRedraw = true;
266 Main.map.repaint();
267 }
268
269 static int checkMaxZoomLvl(int maxZoomLvl, TileSource ts) {
270 if(maxZoomLvl > MAX_ZOOM) {
271 maxZoomLvl = MAX_ZOOM;
272 }
273 if(maxZoomLvl < PROP_MIN_ZOOM_LVL.get()) {
274 maxZoomLvl = PROP_MIN_ZOOM_LVL.get();
275 }
276 if (ts != null && ts.getMaxZoom() != 0 && ts.getMaxZoom() < maxZoomLvl) {
277 maxZoomLvl = ts.getMaxZoom();
278 }
279 return maxZoomLvl;
280 }
281
282 public static int getMaxZoomLvl(TileSource ts) {
283 return checkMaxZoomLvl(PROP_MAX_ZOOM_LVL.get(), ts);
284 }
285
286 public static void setMaxZoomLvl(int maxZoomLvl) {
287 maxZoomLvl = checkMaxZoomLvl(maxZoomLvl, null);
288 PROP_MAX_ZOOM_LVL.put(maxZoomLvl);
289 }
290
291 static int checkMinZoomLvl(int minZoomLvl, TileSource ts) {
292 if(minZoomLvl < MIN_ZOOM) {
293 /*Main.debug("Min. zoom level should not be less than "+MIN_ZOOM+"! Setting to that.");*/
294 minZoomLvl = MIN_ZOOM;
295 }
296 if(minZoomLvl > PROP_MAX_ZOOM_LVL.get()) {
297 /*Main.debug("Min. zoom level should not be more than Max. zoom level! Setting to Max.");*/
298 minZoomLvl = getMaxZoomLvl(ts);
299 }
300 if (ts != null && ts.getMinZoom() > minZoomLvl) {
301 /*Main.debug("Increasing min. zoom level to match tile source");*/
302 minZoomLvl = ts.getMinZoom();
303 }
304 return minZoomLvl;
305 }
306
307 public static int getMinZoomLvl(TileSource ts) {
308 return checkMinZoomLvl(PROP_MIN_ZOOM_LVL.get(), ts);
309 }
310
311 public static void setMinZoomLvl(int minZoomLvl) {
312 minZoomLvl = checkMinZoomLvl(minZoomLvl, null);
313 PROP_MIN_ZOOM_LVL.put(minZoomLvl);
314 }
315
316 private static class CachedAttributionBingAerialTileSource extends BingAerialTileSource {
317
318 public CachedAttributionBingAerialTileSource(String id) {
319 super(id);
320 }
321
322 class BingAttributionData extends CacheCustomContent<IOException> {
323
324 public BingAttributionData() {
325 super("bing.attribution.xml", CacheCustomContent.INTERVAL_HOURLY);
326 }
327
328 @Override
329 protected byte[] updateData() throws IOException {
330 URL u = getAttributionUrl();
331 try (Scanner scanner = new Scanner(UTFInputStreamReader.create(Utils.openURL(u)))) {
332 String r = scanner.useDelimiter("\\A").next();
333 Main.info("Successfully loaded Bing attribution data.");
334 return r.getBytes("UTF-8");
335 }
336 }
337 }
338
339 @Override
340 protected Callable<List<Attribution>> getAttributionLoaderCallable() {
341 return new Callable<List<Attribution>>() {
342
343 @Override
344 public List<Attribution> call() throws Exception {
345 BingAttributionData attributionLoader = new BingAttributionData();
346 int waitTimeSec = 1;
347 while (true) {
348 try {
349 String xml = attributionLoader.updateIfRequiredString();
350 return parseAttributionText(new InputSource(new StringReader((xml))));
351 } catch (IOException ex) {
352 Main.warn("Could not connect to Bing API. Will retry in " + waitTimeSec + " seconds.");
353 Thread.sleep(waitTimeSec * 1000L);
354 waitTimeSec *= 2;
355 }
356 }
357 }
358 };
359 }
360 }
361
362 /**
363 * Creates and returns a new TileSource instance depending on the {@link ImageryType}
364 * of the passed ImageryInfo object.
365 *
366 * If no appropriate TileSource is found, null is returned.
367 * Currently supported ImageryType are {@link ImageryType#TMS},
368 * {@link ImageryType#BING}, {@link ImageryType#SCANEX}.
369 *
370 * @param info
371 * @return a new TileSource instance or null if no TileSource for the ImageryInfo/ImageryType could be found.
372 * @throws IllegalArgumentException
373 */
374 public static TileSource getTileSource(ImageryInfo info) throws IllegalArgumentException {
375 if (info.getImageryType() == ImageryType.TMS) {
376 checkUrl(info.getUrl());
377 TMSTileSource t = new TemplatedTMSTileSource(info.getName(), info.getUrl(), info.getId(), info.getMinZoom(), info.getMaxZoom(),
378 info.getCookies());
379 info.setAttribution(t);
380 return t;
381 } else if (info.getImageryType() == ImageryType.BING)
382 return new CachedAttributionBingAerialTileSource(info.getId());
383 else if (info.getImageryType() == ImageryType.SCANEX) {
384 return new ScanexTileSource(info.getName(), info.getUrl(), info.getId(), info.getMaxZoom());
385 }
386 return null;
387 }
388
389 /**
390 * Checks validity of given URL.
391 * @param url URL to check
392 * @throws IllegalArgumentException if url is null or invalid
393 */
394 public static void checkUrl(String url) {
395 CheckParameterUtil.ensureParameterNotNull(url, "url");
396 Matcher m = Pattern.compile("\\{[^}]*\\}").matcher(url);
397 while (m.find()) {
398 boolean isSupportedPattern = false;
399 for (String pattern : TemplatedTMSTileSource.ALL_PATTERNS) {
400 if (m.group().matches(pattern)) {
401 isSupportedPattern = true;
402 break;
403 }
404 }
405 if (!isSupportedPattern) {
406 throw new IllegalArgumentException(
407 tr("{0} is not a valid TMS argument. Please check this server URL:\n{1}", m.group(), url));
408 }
409 }
410 }
411
412 private void initTileSource(TileSource tileSource) {
413 this.tileSource = tileSource;
414 attribution.initialize(tileSource);
415
416 currentZoomLevel = getBestZoom();
417
418 tileCache = new MemoryTileCache();
419
420 tileLoader = loaderFactory.makeTileLoader(this);
421 if (tileLoader == null) {
422 tileLoader = new OsmTileLoader(this);
423 }
424 tileLoader.timeoutConnect = Main.pref.getInteger("socket.timeout.connect",15) * 1000;
425 tileLoader.timeoutRead = Main.pref.getInteger("socket.timeout.read", 30) * 1000;
426 if (tileSource instanceof TemplatedTMSTileSource) {
427 for(Entry<String, String> e : ((TemplatedTMSTileSource)tileSource).getHeaders().entrySet()) {
428 tileLoader.headers.put(e.getKey(), e.getValue());
429 }
430 }
431 tileLoader.headers.put("User-Agent", Version.getInstance().getFullAgentString());
432 }
433
434 @Override
435 public void setOffset(double dx, double dy) {
436 super.setOffset(dx, dy);
437 needRedraw = true;
438 }
439
440 /**
441 * Returns average number of screen pixels per tile pixel for current mapview
442 */
443 private double getScaleFactor(int zoom) {
444 if (!Main.isDisplayingMapView()) return 1;
445 MapView mv = Main.map.mapView;
446 LatLon topLeft = mv.getLatLon(0, 0);
447 LatLon botRight = mv.getLatLon(mv.getWidth(), mv.getHeight());
448 double x1 = tileSource.lonToTileX(topLeft.lon(), zoom);
449 double y1 = tileSource.latToTileY(topLeft.lat(), zoom);
450 double x2 = tileSource.lonToTileX(botRight.lon(), zoom);
451 double y2 = tileSource.latToTileY(botRight.lat(), zoom);
452
453 int screenPixels = mv.getWidth()*mv.getHeight();
454 double tilePixels = Math.abs((y2-y1)*(x2-x1)*tileSource.getTileSize()*tileSource.getTileSize());
455 if (screenPixels == 0 || tilePixels == 0) return 1;
456 return screenPixels/tilePixels;
457 }
458
459 private final int getBestZoom() {
460 double factor = getScaleFactor(1);
461 double result = Math.log(factor)/Math.log(2)/2+1;
462 // In general, smaller zoom levels are more readable. We prefer big,
463 // block, pixelated (but readable) map text to small, smeared,
464 // unreadable underzoomed text. So, use .floor() instead of rounding
465 // to skew things a bit toward the lower zooms.
466 int intResult = (int)Math.floor(result);
467 if (intResult > getMaxZoomLvl())
468 return getMaxZoomLvl();
469 if (intResult < getMinZoomLvl())
470 return getMinZoomLvl();
471 return intResult;
472 }
473
474 /**
475 * Function to set the maximum number of workers for tile loading to the value defined
476 * in preferences.
477 */
478 public static void setMaxWorkers() {
479 JobDispatcher.setMaxWorkers(PROP_TMS_JOBS.get());
480 JobDispatcher.getInstance().setLIFO(true);
481 }
482
483 @SuppressWarnings("serial")
484 public TMSLayer(ImageryInfo info) {
485 super(info);
486
487 setMaxWorkers();
488 if(!isProjectionSupported(Main.getProjection())) {
489 JOptionPane.showMessageDialog(Main.parent,
490 tr("TMS layers do not support the projection {0}.\n{1}\n"
491 + "Change the projection or remove the layer.",
492 Main.getProjection().toCode(), nameSupportedProjections()),
493 tr("Warning"),
494 JOptionPane.WARNING_MESSAGE);
495 }
496
497 setBackgroundLayer(true);
498 this.setVisible(true);
499
500 TileSource source = getTileSource(info);
501 if (source == null)
502 throw new IllegalStateException("Cannot create TMSLayer with non-TMS ImageryInfo");
503 initTileSource(source);
504 }
505
506 /**
507 * Adds a context menu to the mapView.
508 */
509 @Override
510 public void hookUpMapView() {
511 tileOptionMenu = new JPopupMenu();
512
513 autoZoom = PROP_DEFAULT_AUTOZOOM.get();
514 autoZoomPopup = new JCheckBoxMenuItem();
515 autoZoomPopup.setAction(new AbstractAction(tr("Auto Zoom")) {
516 @Override
517 public void actionPerformed(ActionEvent ae) {
518 autoZoom = !autoZoom;
519 }
520 });
521 autoZoomPopup.setSelected(autoZoom);
522 tileOptionMenu.add(autoZoomPopup);
523
524 autoLoad = PROP_DEFAULT_AUTOLOAD.get();
525 autoLoadPopup = new JCheckBoxMenuItem();
526 autoLoadPopup.setAction(new AbstractAction(tr("Auto load tiles")) {
527 @Override
528 public void actionPerformed(ActionEvent ae) {
529 autoLoad= !autoLoad;
530 }
531 });
532 autoLoadPopup.setSelected(autoLoad);
533 tileOptionMenu.add(autoLoadPopup);
534
535 showErrors = PROP_DEFAULT_SHOWERRORS.get();
536 showErrorsPopup = new JCheckBoxMenuItem();
537 showErrorsPopup.setAction(new AbstractAction(tr("Show Errors")) {
538 @Override
539 public void actionPerformed(ActionEvent ae) {
540 showErrors = !showErrors;
541 }
542 });
543 showErrorsPopup.setSelected(showErrors);
544 tileOptionMenu.add(showErrorsPopup);
545
546 tileOptionMenu.add(new JMenuItem(new AbstractAction(tr("Load Tile")) {
547 @Override
548 public void actionPerformed(ActionEvent ae) {
549 if (clickedTile != null) {
550 loadTile(clickedTile, true);
551 redraw();
552 }
553 }
554 }));
555
556 tileOptionMenu.add(new JMenuItem(new AbstractAction(
557 tr("Show Tile Info")) {
558 @Override
559 public void actionPerformed(ActionEvent ae) {
560 if (clickedTile != null) {
561 showMetadataTile = clickedTile;
562 redraw();
563 }
564 }
565 }));
566
567 /* FIXME
568 tileOptionMenu.add(new JMenuItem(new AbstractAction(
569 tr("Request Update")) {
570 public void actionPerformed(ActionEvent ae) {
571 if (clickedTile != null) {
572 clickedTile.requestUpdate();
573 redraw();
574 }
575 }
576 }));*/
577
578 tileOptionMenu.add(new JMenuItem(new AbstractAction(
579 tr("Load All Tiles")) {
580 @Override
581 public void actionPerformed(ActionEvent ae) {
582 loadAllTiles(true);
583 redraw();
584 }
585 }));
586
587 tileOptionMenu.add(new JMenuItem(new AbstractAction(
588 tr("Load All Error Tiles")) {
589 @Override
590 public void actionPerformed(ActionEvent ae) {
591 loadAllErrorTiles(true);
592 redraw();
593 }
594 }));
595
596 // increase and decrease commands
597 tileOptionMenu.add(new JMenuItem(new AbstractAction(
598 tr("Increase zoom")) {
599 @Override
600 public void actionPerformed(ActionEvent ae) {
601 increaseZoomLevel();
602 redraw();
603 }
604 }));
605
606 tileOptionMenu.add(new JMenuItem(new AbstractAction(
607 tr("Decrease zoom")) {
608 @Override
609 public void actionPerformed(ActionEvent ae) {
610 decreaseZoomLevel();
611 redraw();
612 }
613 }));
614
615 tileOptionMenu.add(new JMenuItem(new AbstractAction(
616 tr("Snap to tile size")) {
617 @Override
618 public void actionPerformed(ActionEvent ae) {
619 double new_factor = Math.sqrt(getScaleFactor(currentZoomLevel));
620 Main.map.mapView.zoomToFactor(new_factor);
621 redraw();
622 }
623 }));
624
625 tileOptionMenu.add(new JMenuItem(new AbstractAction(
626 tr("Flush Tile Cache")) {
627 @Override
628 public void actionPerformed(ActionEvent ae) {
629 new PleaseWaitRunnable(tr("Flush Tile Cache")) {
630 @Override
631 protected void realRun() throws SAXException, IOException,
632 OsmTransferException {
633 clearTileCache(getProgressMonitor());
634 }
635
636 @Override
637 protected void finish() {
638 }
639
640 @Override
641 protected void cancel() {
642 }
643 }.run();
644 }
645 }));
646
647 final MouseAdapter adapter = new MouseAdapter() {
648 @Override
649 public void mouseClicked(MouseEvent e) {
650 if (!isVisible()) return;
651 if (e.getButton() == MouseEvent.BUTTON3) {
652 clickedTile = getTileForPixelpos(e.getX(), e.getY());
653 tileOptionMenu.show(e.getComponent(), e.getX(), e.getY());
654 } else if (e.getButton() == MouseEvent.BUTTON1) {
655 attribution.handleAttribution(e.getPoint(), true);
656 }
657 }
658 };
659 Main.map.mapView.addMouseListener(adapter);
660
661 MapView.addLayerChangeListener(new LayerChangeListener() {
662 @Override
663 public void activeLayerChange(Layer oldLayer, Layer newLayer) {
664 //
665 }
666
667 @Override
668 public void layerAdded(Layer newLayer) {
669 //
670 }
671
672 @Override
673 public void layerRemoved(Layer oldLayer) {
674 if (oldLayer == TMSLayer.this) {
675 Main.map.mapView.removeMouseListener(adapter);
676 MapView.removeLayerChangeListener(this);
677 }
678 }
679 });
680 }
681
682 void zoomChanged() {
683 if (Main.isDebugEnabled()) {
684 Main.debug("zoomChanged(): " + currentZoomLevel);
685 }
686 needRedraw = true;
687 JobDispatcher.getInstance().cancelOutstandingJobs();
688 tileRequestsOutstanding.clear();
689 }
690
691 int getMaxZoomLvl() {
692 if (info.getMaxZoom() != 0)
693 return checkMaxZoomLvl(info.getMaxZoom(), tileSource);
694 else
695 return getMaxZoomLvl(tileSource);
696 }
697
698 int getMinZoomLvl() {
699 return getMinZoomLvl(tileSource);
700 }
701
702 /**
703 * Zoom in, go closer to map.
704 *
705 * @return true, if zoom increasing was successfull, false othervise
706 */
707 public boolean zoomIncreaseAllowed() {
708 boolean zia = currentZoomLevel < this.getMaxZoomLvl();
709 if (Main.isDebugEnabled()) {
710 Main.debug("zoomIncreaseAllowed(): " + zia + " " + currentZoomLevel + " vs. " + this.getMaxZoomLvl() );
711 }
712 return zia;
713 }
714
715 public boolean increaseZoomLevel() {
716 if (zoomIncreaseAllowed()) {
717 currentZoomLevel++;
718 if (Main.isDebugEnabled()) {
719 Main.debug("increasing zoom level to: " + currentZoomLevel);
720 }
721 zoomChanged();
722 } else {
723 Main.warn("Current zoom level ("+currentZoomLevel+") could not be increased. "+
724 "Max.zZoom Level "+this.getMaxZoomLvl()+" reached.");
725 return false;
726 }
727 return true;
728 }
729
730 public boolean setZoomLevel(int zoom) {
731 if (zoom == currentZoomLevel) return true;
732 if (zoom > this.getMaxZoomLvl()) return false;
733 if (zoom < this.getMinZoomLvl()) return false;
734 currentZoomLevel = zoom;
735 zoomChanged();
736 return true;
737 }
738
739 /**
740 * Check if zooming out is allowed
741 *
742 * @return true, if zooming out is allowed (currentZoomLevel &gt; minZoomLevel)
743 */
744 public boolean zoomDecreaseAllowed() {
745 return currentZoomLevel > this.getMinZoomLvl();
746 }
747
748 /**
749 * Zoom out from map.
750 *
751 * @return true, if zoom increasing was successfull, false othervise
752 */
753 public boolean decreaseZoomLevel() {
754 //int minZoom = this.getMinZoomLvl();
755 if (zoomDecreaseAllowed()) {
756 if (Main.isDebugEnabled()) {
757 Main.debug("decreasing zoom level to: " + currentZoomLevel);
758 }
759 currentZoomLevel--;
760 zoomChanged();
761 } else {
762 /*Main.debug("Current zoom level could not be decreased. Min. zoom level "+minZoom+" reached.");*/
763 return false;
764 }
765 return true;
766 }
767
768 /*
769 * We use these for quick, hackish calculations. They
770 * are temporary only and intentionally not inserted
771 * into the tileCache.
772 */
773 synchronized Tile tempCornerTile(Tile t) {
774 int x = t.getXtile() + 1;
775 int y = t.getYtile() + 1;
776 int zoom = t.getZoom();
777 Tile tile = getTile(x, y, zoom);
778 if (tile != null)
779 return tile;
780 return new Tile(tileSource, x, y, zoom);
781 }
782
783 synchronized Tile getOrCreateTile(int x, int y, int zoom) {
784 Tile tile = getTile(x, y, zoom);
785 if (tile == null) {
786 tile = new Tile(tileSource, x, y, zoom);
787 tileCache.addTile(tile);
788 tile.loadPlaceholderFromCache(tileCache);
789 }
790 return tile;
791 }
792
793 /*
794 * This can and will return null for tiles that are not
795 * already in the cache.
796 */
797 synchronized Tile getTile(int x, int y, int zoom) {
798 int max = (1 << zoom);
799 if (x < 0 || x >= max || y < 0 || y >= max)
800 return null;
801 return tileCache.getTile(tileSource, x, y, zoom);
802 }
803
804 synchronized boolean loadTile(Tile tile, boolean force) {
805 if (tile == null)
806 return false;
807 if (!force && (tile.hasError() || tile.isLoaded()))
808 return false;
809 if (tile.isLoading())
810 return false;
811 if (tileRequestsOutstanding.contains(tile))
812 return false;
813 tileRequestsOutstanding.add(tile);
814 JobDispatcher.getInstance().addJob(tileLoader.createTileLoaderJob(tile));
815 return true;
816 }
817
818 void loadAllTiles(boolean force) {
819 MapView mv = Main.map.mapView;
820 EastNorth topLeft = mv.getEastNorth(0, 0);
821 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight());
822
823 TileSet ts = new TileSet(topLeft, botRight, currentZoomLevel);
824
825 // if there is more than 18 tiles on screen in any direction, do not
826 // load all tiles!
827 if (ts.tooLarge()) {
828 Main.warn("Not downloading all tiles because there is more than 18 tiles on an axis!");
829 return;
830 }
831 ts.loadAllTiles(force);
832 }
833
834 void loadAllErrorTiles(boolean force) {
835 MapView mv = Main.map.mapView;
836 EastNorth topLeft = mv.getEastNorth(0, 0);
837 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight());
838
839 TileSet ts = new TileSet(topLeft, botRight, currentZoomLevel);
840
841 ts.loadAllErrorTiles(force);
842 }
843
844 /*
845 * Attempt to approximate how much the image is being scaled. For instance,
846 * a 100x100 image being scaled to 50x50 would return 0.25.
847 */
848 Image lastScaledImage = null;
849 @Override
850 public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height) {
851 boolean done = ((infoflags & (ERROR | FRAMEBITS | ALLBITS)) != 0);
852 needRedraw = true;
853 if (Main.isDebugEnabled()) {
854 Main.debug("imageUpdate() done: " + done + " calling repaint");
855 }
856 Main.map.repaint(done ? 0 : 100);
857 return !done;
858 }
859
860 boolean imageLoaded(Image i) {
861 if (i == null)
862 return false;
863 int status = Toolkit.getDefaultToolkit().checkImage(i, -1, -1, this);
864 if ((status & ALLBITS) != 0)
865 return true;
866 return false;
867 }
868
869 /**
870 * Returns the image for the given tile if both tile and image are loaded.
871 * Otherwise returns null.
872 *
873 * @param tile the Tile for which the image should be returned
874 * @return the image of the tile or null.
875 */
876 Image getLoadedTileImage(Tile tile) {
877 if (!tile.isLoaded())
878 return null;
879 Image img = tile.getImage();
880 if (!imageLoaded(img))
881 return null;
882 return img;
883 }
884
885 LatLon tileLatLon(Tile t) {
886 int zoom = t.getZoom();
887 return new LatLon(tileSource.tileYToLat(t.getYtile(), zoom),
888 tileSource.tileXToLon(t.getXtile(), zoom));
889 }
890
891 Rectangle tileToRect(Tile t1) {
892 /*
893 * We need to get a box in which to draw, so advance by one tile in
894 * each direction to find the other corner of the box.
895 * Note: this somewhat pollutes the tile cache
896 */
897 Tile t2 = tempCornerTile(t1);
898 Rectangle rect = new Rectangle(pixelPos(t1));
899 rect.add(pixelPos(t2));
900 return rect;
901 }
902
903 // 'source' is the pixel coordinates for the area that
904 // the img is capable of filling in. However, we probably
905 // only want a portion of it.
906 //
907 // 'border' is the screen cordinates that need to be drawn.
908 // We must not draw outside of it.
909 void drawImageInside(Graphics g, Image sourceImg, Rectangle source, Rectangle border) {
910 Rectangle target = source;
911
912 // If a border is specified, only draw the intersection
913 // if what we have combined with what we are supposed
914 // to draw.
915 if (border != null) {
916 target = source.intersection(border);
917 if (Main.isDebugEnabled()) {
918 Main.debug("source: " + source + "\nborder: " + border + "\nintersection: " + target);
919 }
920 }
921
922 // All of the rectangles are in screen coordinates. We need
923 // to how these correlate to the sourceImg pixels. We could
924 // avoid doing this by scaling the image up to the 'source' size,
925 // but this should be cheaper.
926 //
927 // In some projections, x any y are scaled differently enough to
928 // cause a pixel or two of fudge. Calculate them separately.
929 double imageYScaling = sourceImg.getHeight(this) / source.getHeight();
930 double imageXScaling = sourceImg.getWidth(this) / source.getWidth();
931
932 // How many pixels into the 'source' rectangle are we drawing?
933 int screen_x_offset = target.x - source.x;
934 int screen_y_offset = target.y - source.y;
935 // And how many pixels into the image itself does that
936 // correlate to?
937 int img_x_offset = (int)(screen_x_offset * imageXScaling);
938 int img_y_offset = (int)(screen_y_offset * imageYScaling);
939 // Now calculate the other corner of the image that we need
940 // by scaling the 'target' rectangle's dimensions.
941 int img_x_end = img_x_offset + (int)(target.getWidth() * imageXScaling);
942 int img_y_end = img_y_offset + (int)(target.getHeight() * imageYScaling);
943
944 if (Main.isDebugEnabled()) {
945 Main.debug("drawing image into target rect: " + target);
946 }
947 g.drawImage(sourceImg,
948 target.x, target.y,
949 target.x + target.width, target.y + target.height,
950 img_x_offset, img_y_offset,
951 img_x_end, img_y_end,
952 this);
953 if (PROP_FADE_AMOUNT.get() != 0) {
954 // dimm by painting opaque rect...
955 g.setColor(getFadeColorWithAlpha());
956 g.fillRect(target.x, target.y,
957 target.width, target.height);
958 }
959 }
960
961 // This function is called for several zoom levels, not just
962 // the current one. It should not trigger any tiles to be
963 // downloaded. It should also avoid polluting the tile cache
964 // with any tiles since these tiles are not mandatory.
965 //
966 // The "border" tile tells us the boundaries of where we may
967 // draw. It will not be from the zoom level that is being
968 // drawn currently. If drawing the displayZoomLevel,
969 // border is null and we draw the entire tile set.
970 List<Tile> paintTileImages(Graphics g, TileSet ts, int zoom, Tile border) {
971 if (zoom <= 0) return Collections.emptyList();
972 Rectangle borderRect = null;
973 if (border != null) {
974 borderRect = tileToRect(border);
975 }
976 List<Tile> missedTiles = new LinkedList<>();
977 // The callers of this code *require* that we return any tiles
978 // that we do not draw in missedTiles. ts.allExistingTiles() by
979 // default will only return already-existing tiles. However, we
980 // need to return *all* tiles to the callers, so force creation
981 // here.
982 //boolean forceTileCreation = true;
983 for (Tile tile : ts.allTilesCreate()) {
984 Image img = getLoadedTileImage(tile);
985 if (img == null || tile.hasError()) {
986 if (Main.isDebugEnabled()) {
987 Main.debug("missed tile: " + tile);
988 }
989 missedTiles.add(tile);
990 continue;
991 }
992 Rectangle sourceRect = tileToRect(tile);
993 if (borderRect != null && !sourceRect.intersects(borderRect)) {
994 continue;
995 }
996 drawImageInside(g, img, sourceRect, borderRect);
997 }
998 return missedTiles;
999 }
1000
1001 void myDrawString(Graphics g, String text, int x, int y) {
1002 Color oldColor = g.getColor();
1003 g.setColor(Color.black);
1004 g.drawString(text,x+1,y+1);
1005 g.setColor(oldColor);
1006 g.drawString(text,x,y);
1007 }
1008
1009 void paintTileText(TileSet ts, Tile tile, Graphics g, MapView mv, int zoom, Tile t) {
1010 int fontHeight = g.getFontMetrics().getHeight();
1011 if (tile == null)
1012 return;
1013 Point p = pixelPos(t);
1014 int texty = p.y + 2 + fontHeight;
1015
1016 /*if (PROP_DRAW_DEBUG.get()) {
1017 myDrawString(g, "x=" + t.getXtile() + " y=" + t.getYtile() + " z=" + zoom + "", p.x + 2, texty);
1018 texty += 1 + fontHeight;
1019 if ((t.getXtile() % 32 == 0) && (t.getYtile() % 32 == 0)) {
1020 myDrawString(g, "x=" + t.getXtile() / 32 + " y=" + t.getYtile() / 32 + " z=7", p.x + 2, texty);
1021 texty += 1 + fontHeight;
1022 }
1023 }*/
1024
1025 if (tile == showMetadataTile) {
1026 String md = tile.toString();
1027 if (md != null) {
1028 myDrawString(g, md, p.x + 2, texty);
1029 texty += 1 + fontHeight;
1030 }
1031 Map<String, String> meta = tile.getMetadata();
1032 if (meta != null) {
1033 for (Map.Entry<String, String> entry : meta.entrySet()) {
1034 myDrawString(g, entry.getKey() + ": " + entry.getValue(), p.x + 2, texty);
1035 texty += 1 + fontHeight;
1036 }
1037 }
1038 }
1039
1040 /*String tileStatus = tile.getStatus();
1041 if (!tile.isLoaded() && PROP_DRAW_DEBUG.get()) {
1042 myDrawString(g, tr("image " + tileStatus), p.x + 2, texty);
1043 texty += 1 + fontHeight;
1044 }*/
1045
1046 if (tile.hasError() && showErrors) {
1047 myDrawString(g, tr("Error") + ": " + tr(tile.getErrorMessage()), p.x + 2, texty);
1048 texty += 1 + fontHeight;
1049 }
1050
1051 /*int xCursor = -1;
1052 int yCursor = -1;
1053 if (PROP_DRAW_DEBUG.get()) {
1054 if (yCursor < t.getYtile()) {
1055 if (t.getYtile() % 32 == 31) {
1056 g.fillRect(0, p.y - 1, mv.getWidth(), 3);
1057 } else {
1058 g.drawLine(0, p.y, mv.getWidth(), p.y);
1059 }
1060 yCursor = t.getYtile();
1061 }
1062 // This draws the vertical lines for the entire
1063 // column. Only draw them for the top tile in
1064 // the column.
1065 if (xCursor < t.getXtile()) {
1066 if (t.getXtile() % 32 == 0) {
1067 // level 7 tile boundary
1068 g.fillRect(p.x - 1, 0, 3, mv.getHeight());
1069 } else {
1070 g.drawLine(p.x, 0, p.x, mv.getHeight());
1071 }
1072 xCursor = t.getXtile();
1073 }
1074 }*/
1075 }
1076
1077 private Point pixelPos(LatLon ll) {
1078 return Main.map.mapView.getPoint(Main.getProjection().latlon2eastNorth(ll).add(getDx(), getDy()));
1079 }
1080
1081 private Point pixelPos(Tile t) {
1082 double lon = tileSource.tileXToLon(t.getXtile(), t.getZoom());
1083 LatLon tmpLL = new LatLon(tileSource.tileYToLat(t.getYtile(), t.getZoom()), lon);
1084 return pixelPos(tmpLL);
1085 }
1086
1087 private LatLon getShiftedLatLon(EastNorth en) {
1088 return Main.getProjection().eastNorth2latlon(en.add(-getDx(), -getDy()));
1089 }
1090
1091 private Coordinate getShiftedCoord(EastNorth en) {
1092 LatLon ll = getShiftedLatLon(en);
1093 return new Coordinate(ll.lat(),ll.lon());
1094 }
1095
1096 private final TileSet nullTileSet = new TileSet((LatLon)null, (LatLon)null, 0);
1097 private class TileSet {
1098 int x0, x1, y0, y1;
1099 int zoom;
1100 int tileMax = -1;
1101
1102 /**
1103 * Create a TileSet by EastNorth bbox taking a layer shift in account
1104 */
1105 TileSet(EastNorth topLeft, EastNorth botRight, int zoom) {
1106 this(getShiftedLatLon(topLeft), getShiftedLatLon(botRight),zoom);
1107 }
1108
1109 /**
1110 * Create a TileSet by known LatLon bbox without layer shift correction
1111 */
1112 TileSet(LatLon topLeft, LatLon botRight, int zoom) {
1113 this.zoom = zoom;
1114 if (zoom == 0)
1115 return;
1116
1117 x0 = (int)tileSource.lonToTileX(topLeft.lon(), zoom);
1118 y0 = (int)tileSource.latToTileY(topLeft.lat(), zoom);
1119 x1 = (int)tileSource.lonToTileX(botRight.lon(), zoom);
1120 y1 = (int)tileSource.latToTileY(botRight.lat(), zoom);
1121 if (x0 > x1) {
1122 int tmp = x0;
1123 x0 = x1;
1124 x1 = tmp;
1125 }
1126 if (y0 > y1) {
1127 int tmp = y0;
1128 y0 = y1;
1129 y1 = tmp;
1130 }
1131 tileMax = (int)Math.pow(2.0, zoom);
1132 if (x0 < 0) {
1133 x0 = 0;
1134 }
1135 if (y0 < 0) {
1136 y0 = 0;
1137 }
1138 if (x1 > tileMax) {
1139 x1 = tileMax;
1140 }
1141 if (y1 > tileMax) {
1142 y1 = tileMax;
1143 }
1144 }
1145
1146 boolean tooSmall() {
1147 return this.tilesSpanned() < 2.1;
1148 }
1149
1150 boolean tooLarge() {
1151 return this.tilesSpanned() > 10;
1152 }
1153
1154 boolean insane() {
1155 return this.tilesSpanned() > 100;
1156 }
1157
1158 double tilesSpanned() {
1159 return Math.sqrt(1.0 * this.size());
1160 }
1161
1162 int size() {
1163 int x_span = x1 - x0 + 1;
1164 int y_span = y1 - y0 + 1;
1165 return x_span * y_span;
1166 }
1167
1168 /*
1169 * Get all tiles represented by this TileSet that are
1170 * already in the tileCache.
1171 */
1172 List<Tile> allExistingTiles() {
1173 return this.__allTiles(false);
1174 }
1175
1176 List<Tile> allTilesCreate() {
1177 return this.__allTiles(true);
1178 }
1179
1180 private List<Tile> __allTiles(boolean create) {
1181 // Tileset is either empty or too large
1182 if (zoom == 0 || this.insane())
1183 return Collections.emptyList();
1184 List<Tile> ret = new ArrayList<>();
1185 for (int x = x0; x <= x1; x++) {
1186 for (int y = y0; y <= y1; y++) {
1187 Tile t;
1188 if (create) {
1189 t = getOrCreateTile(x % tileMax, y % tileMax, zoom);
1190 } else {
1191 t = getTile(x % tileMax, y % tileMax, zoom);
1192 }
1193 if (t != null) {
1194 ret.add(t);
1195 }
1196 }
1197 }
1198 return ret;
1199 }
1200
1201 private List<Tile> allLoadedTiles() {
1202 List<Tile> ret = new ArrayList<>();
1203 for (Tile t : this.allExistingTiles()) {
1204 if (t.isLoaded())
1205 ret.add(t);
1206 }
1207 return ret;
1208 }
1209
1210 void loadAllTiles(boolean force) {
1211 if (!autoLoad && !force)
1212 return;
1213 for (Tile t : this.allTilesCreate()) {
1214 loadTile(t, false);
1215 }
1216 }
1217
1218 void loadAllErrorTiles(boolean force) {
1219 if (!autoLoad && !force)
1220 return;
1221 for (Tile t : this.allTilesCreate()) {
1222 if (t.hasError()) {
1223 loadTile(t, true);
1224 }
1225 }
1226 }
1227 }
1228
1229
1230 private static class TileSetInfo {
1231 public boolean hasVisibleTiles = false;
1232 public boolean hasOverzoomedTiles = false;
1233 public boolean hasLoadingTiles = false;
1234 }
1235
1236 private static TileSetInfo getTileSetInfo(TileSet ts) {
1237 List<Tile> allTiles = ts.allExistingTiles();
1238 TileSetInfo result = new TileSetInfo();
1239 result.hasLoadingTiles = allTiles.size() < ts.size();
1240 for (Tile t : allTiles) {
1241 if (t.isLoaded()) {
1242 if (!t.hasError()) {
1243 result.hasVisibleTiles = true;
1244 }
1245 if ("no-tile".equals(t.getValue("tile-info"))) {
1246 result.hasOverzoomedTiles = true;
1247 }
1248 } else {
1249 result.hasLoadingTiles = true;
1250 }
1251 }
1252 return result;
1253 }
1254
1255 private class DeepTileSet {
1256 final EastNorth topLeft, botRight;
1257 final int minZoom, maxZoom;
1258 private final TileSet[] tileSets;
1259 private final TileSetInfo[] tileSetInfos;
1260 public DeepTileSet(EastNorth topLeft, EastNorth botRight, int minZoom, int maxZoom) {
1261 this.topLeft = topLeft;
1262 this.botRight = botRight;
1263 this.minZoom = minZoom;
1264 this.maxZoom = maxZoom;
1265 this.tileSets = new TileSet[maxZoom - minZoom + 1];
1266 this.tileSetInfos = new TileSetInfo[maxZoom - minZoom + 1];
1267 }
1268 public TileSet getTileSet(int zoom) {
1269 if (zoom < minZoom)
1270 return nullTileSet;
1271 TileSet ts = tileSets[zoom-minZoom];
1272 if (ts == null) {
1273 ts = new TileSet(topLeft, botRight, zoom);
1274 tileSets[zoom-minZoom] = ts;
1275 }
1276 return ts;
1277 }
1278 public TileSetInfo getTileSetInfo(int zoom) {
1279 if (zoom < minZoom)
1280 return new TileSetInfo();
1281 TileSetInfo tsi = tileSetInfos[zoom-minZoom];
1282 if (tsi == null) {
1283 tsi = TMSLayer.getTileSetInfo(getTileSet(zoom));
1284 tileSetInfos[zoom-minZoom] = tsi;
1285 }
1286 return tsi;
1287 }
1288 }
1289
1290 @Override
1291 public void paint(Graphics2D g, MapView mv, Bounds bounds) {
1292 //long start = System.currentTimeMillis();
1293 EastNorth topLeft = mv.getEastNorth(0, 0);
1294 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight());
1295
1296 if (botRight.east() == 0.0 || botRight.north() == 0) {
1297 /*Main.debug("still initializing??");*/
1298 // probably still initializing
1299 return;
1300 }
1301
1302 needRedraw = false;
1303
1304 int zoom = currentZoomLevel;
1305 if (autoZoom) {
1306 double pixelScaling = getScaleFactor(zoom);
1307 if (pixelScaling > 3 || pixelScaling < 0.7) {
1308 zoom = getBestZoom();
1309 }
1310 }
1311
1312 DeepTileSet dts = new DeepTileSet(topLeft, botRight, getMinZoomLvl(), zoom);
1313 TileSet ts = dts.getTileSet(zoom);
1314
1315 int displayZoomLevel = zoom;
1316
1317 boolean noTilesAtZoom = false;
1318 if (autoZoom && autoLoad) {
1319 // Auto-detection of tilesource maxzoom (currently fully works only for Bing)
1320 TileSetInfo tsi = dts.getTileSetInfo(zoom);
1321 if (!tsi.hasVisibleTiles && (!tsi.hasLoadingTiles || tsi.hasOverzoomedTiles)) {
1322 noTilesAtZoom = true;
1323 }
1324 // Find highest zoom level with at least one visible tile
1325 for (int tmpZoom = zoom; tmpZoom > dts.minZoom; tmpZoom--) {
1326 if (dts.getTileSetInfo(tmpZoom).hasVisibleTiles) {
1327 displayZoomLevel = tmpZoom;
1328 break;
1329 }
1330 }
1331 // Do binary search between currentZoomLevel and displayZoomLevel
1332 while (zoom > displayZoomLevel && !tsi.hasVisibleTiles && tsi.hasOverzoomedTiles){
1333 zoom = (zoom + displayZoomLevel)/2;
1334 tsi = dts.getTileSetInfo(zoom);
1335 }
1336
1337 setZoomLevel(zoom);
1338
1339 // If all tiles at displayZoomLevel is loaded, load all tiles at next zoom level
1340 // to make sure there're really no more zoom levels
1341 if (zoom == displayZoomLevel && !tsi.hasLoadingTiles && zoom < dts.maxZoom) {
1342 zoom++;
1343 tsi = dts.getTileSetInfo(zoom);
1344 }
1345 // When we have overzoomed tiles and all tiles at current zoomlevel is loaded,
1346 // load tiles at previovus zoomlevels until we have all tiles on screen is loaded.
1347 while (zoom > dts.minZoom && tsi.hasOverzoomedTiles && !tsi.hasLoadingTiles) {
1348 zoom--;
1349 tsi = dts.getTileSetInfo(zoom);
1350 }
1351 ts = dts.getTileSet(zoom);
1352 } else if (autoZoom) {
1353 setZoomLevel(zoom);
1354 }
1355
1356 // Too many tiles... refuse to download
1357 if (!ts.tooLarge()) {
1358 //Main.debug("size: " + ts.size() + " spanned: " + ts.tilesSpanned());
1359 ts.loadAllTiles(false);
1360 }
1361
1362 if (displayZoomLevel != zoom) {
1363 ts = dts.getTileSet(displayZoomLevel);
1364 }
1365
1366 g.setColor(Color.DARK_GRAY);
1367
1368 List<Tile> missedTiles = this.paintTileImages(g, ts, displayZoomLevel, null);
1369 int[] otherZooms = { -1, 1, -2, 2, -3, -4, -5};
1370 for (int zoomOffset : otherZooms) {
1371 if (!autoZoom) {
1372 break;
1373 }
1374 int newzoom = displayZoomLevel + zoomOffset;
1375 if (newzoom < MIN_ZOOM) {
1376 continue;
1377 }
1378 if (missedTiles.size() <= 0) {
1379 break;
1380 }
1381 List<Tile> newlyMissedTiles = new LinkedList<>();
1382 for (Tile missed : missedTiles) {
1383 if ("no-tile".equals(missed.getValue("tile-info")) && zoomOffset > 0) {
1384 // Don't try to paint from higher zoom levels when tile is overzoomed
1385 newlyMissedTiles.add(missed);
1386 continue;
1387 }
1388 Tile t2 = tempCornerTile(missed);
1389 LatLon topLeft2 = tileLatLon(missed);
1390 LatLon botRight2 = tileLatLon(t2);
1391 TileSet ts2 = new TileSet(topLeft2, botRight2, newzoom);
1392 // Instantiating large TileSets is expensive. If there
1393 // are no loaded tiles, don't bother even trying.
1394 if (ts2.allLoadedTiles().isEmpty()) {
1395 newlyMissedTiles.add(missed);
1396 continue;
1397 }
1398 if (ts2.tooLarge()) {
1399 continue;
1400 }
1401 newlyMissedTiles.addAll(this.paintTileImages(g, ts2, newzoom, missed));
1402 }
1403 missedTiles = newlyMissedTiles;
1404 }
1405 if (Main.isDebugEnabled() && missedTiles.size() > 0) {
1406 Main.debug("still missed "+missedTiles.size()+" in the end");
1407 }
1408 g.setColor(Color.red);
1409 g.setFont(InfoFont);
1410
1411 // The current zoom tileset should have all of its tiles
1412 // due to the loadAllTiles(), unless it to tooLarge()
1413 for (Tile t : ts.allExistingTiles()) {
1414 this.paintTileText(ts, t, g, mv, displayZoomLevel, t);
1415 }
1416
1417 attribution.paintAttribution(g, mv.getWidth(), mv.getHeight(), getShiftedCoord(topLeft), getShiftedCoord(botRight), displayZoomLevel, this);
1418
1419 //g.drawString("currentZoomLevel=" + currentZoomLevel, 120, 120);
1420 g.setColor(Color.lightGray);
1421 if (!autoZoom) {
1422 if (ts.insane()) {
1423 myDrawString(g, tr("zoom in to load any tiles"), 120, 120);
1424 } else if (ts.tooLarge()) {
1425 myDrawString(g, tr("zoom in to load more tiles"), 120, 120);
1426 } else if (ts.tooSmall()) {
1427 myDrawString(g, tr("increase zoom level to see more detail"), 120, 120);
1428 }
1429 }
1430 if (noTilesAtZoom) {
1431 myDrawString(g, tr("No tiles at this zoom level"), 120, 120);
1432 }
1433 if (Main.isDebugEnabled()) {
1434 myDrawString(g, tr("Current zoom: {0}", currentZoomLevel), 50, 140);
1435 myDrawString(g, tr("Display zoom: {0}", displayZoomLevel), 50, 155);
1436 myDrawString(g, tr("Pixel scale: {0}", getScaleFactor(currentZoomLevel)), 50, 170);
1437 myDrawString(g, tr("Best zoom: {0}", Math.log(getScaleFactor(1))/Math.log(2)/2+1), 50, 185);
1438 }
1439 }
1440
1441 /**
1442 * This isn't very efficient, but it is only used when the
1443 * user right-clicks on the map.
1444 */
1445 Tile getTileForPixelpos(int px, int py) {
1446 if (Main.isDebugEnabled()) {
1447 Main.debug("getTileForPixelpos("+px+", "+py+")");
1448 }
1449 MapView mv = Main.map.mapView;
1450 Point clicked = new Point(px, py);
1451 EastNorth topLeft = mv.getEastNorth(0, 0);
1452 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight());
1453 int z = currentZoomLevel;
1454 TileSet ts = new TileSet(topLeft, botRight, z);
1455
1456 if (!ts.tooLarge()) {
1457 ts.loadAllTiles(false); // make sure there are tile objects for all tiles
1458 }
1459 Tile clickedTile = null;
1460 for (Tile t1 : ts.allExistingTiles()) {
1461 Tile t2 = tempCornerTile(t1);
1462 Rectangle r = new Rectangle(pixelPos(t1));
1463 r.add(pixelPos(t2));
1464 if (Main.isDebugEnabled()) {
1465 Main.debug("r: " + r + " clicked: " + clicked);
1466 }
1467 if (!r.contains(clicked)) {
1468 continue;
1469 }
1470 clickedTile = t1;
1471 break;
1472 }
1473 if (clickedTile == null)
1474 return null;
1475 /*Main.debug("Clicked on tile: " + clickedTile.getXtile() + " " + clickedTile.getYtile() +
1476 " currentZoomLevel: " + currentZoomLevel);*/
1477 return clickedTile;
1478 }
1479
1480 @Override
1481 public Action[] getMenuEntries() {
1482 return new Action[] {
1483 LayerListDialog.getInstance().createShowHideLayerAction(),
1484 LayerListDialog.getInstance().createDeleteLayerAction(),
1485 SeparatorLayerAction.INSTANCE,
1486 // color,
1487 new OffsetAction(),
1488 new RenameLayerAction(this.getAssociatedFile(), this),
1489 SeparatorLayerAction.INSTANCE,
1490 new LayerListPopup.InfoAction(this) };
1491 }
1492
1493 @Override
1494 public String getToolTipText() {
1495 return tr("TMS layer ({0}), downloading in zoom {1}", getName(), currentZoomLevel);
1496 }
1497
1498 @Override
1499 public void visitBoundingBox(BoundingXYVisitor v) {
1500 }
1501
1502 @Override
1503 public boolean isChanged() {
1504 return needRedraw;
1505 }
1506
1507 @Override
1508 public final boolean isProjectionSupported(Projection proj) {
1509 return "EPSG:3857".equals(proj.toCode()) || "EPSG:4326".equals(proj.toCode());
1510 }
1511
1512 @Override
1513 public final String nameSupportedProjections() {
1514 return tr("EPSG:4326 and Mercator projection are supported");
1515 }
1516}
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