source: josm/trunk/src/org/openstreetmap/josm/gui/layer/TMSLayer.java@ 8349

Last change on this file since 8349 was 8349, checked in by stoecker, 9 years ago

see #11419 - support different tile sizes better (patch by wiktorn)
  • Property svn:eol-style set to native
File size: 54.1 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.HashMap;
25import java.util.LinkedList;
26import java.util.List;
27import java.util.Map;
28import java.util.Scanner;
29import java.util.concurrent.Callable;
30import java.util.regex.Matcher;
31import java.util.regex.Pattern;
32
33import javax.swing.AbstractAction;
34import javax.swing.Action;
35import javax.swing.JCheckBoxMenuItem;
36import javax.swing.JMenuItem;
37import javax.swing.JOptionPane;
38import javax.swing.JPopupMenu;
39
40import org.openstreetmap.gui.jmapviewer.AttributionSupport;
41import org.openstreetmap.gui.jmapviewer.Coordinate;
42import org.openstreetmap.gui.jmapviewer.MemoryTileCache;
43import org.openstreetmap.gui.jmapviewer.OsmTileLoader;
44import org.openstreetmap.gui.jmapviewer.Tile;
45import org.openstreetmap.gui.jmapviewer.interfaces.CachedTileLoader;
46import org.openstreetmap.gui.jmapviewer.interfaces.TileCache;
47import org.openstreetmap.gui.jmapviewer.interfaces.TileLoader;
48import org.openstreetmap.gui.jmapviewer.interfaces.TileLoaderListener;
49import org.openstreetmap.gui.jmapviewer.interfaces.TileSource;
50import org.openstreetmap.gui.jmapviewer.tilesources.BingAerialTileSource;
51import org.openstreetmap.gui.jmapviewer.tilesources.ScanexTileSource;
52import org.openstreetmap.gui.jmapviewer.tilesources.TMSTileSource;
53import org.openstreetmap.gui.jmapviewer.tilesources.TemplatedTMSTileSource;
54import org.openstreetmap.josm.Main;
55import org.openstreetmap.josm.actions.RenameLayerAction;
56import org.openstreetmap.josm.data.Bounds;
57import org.openstreetmap.josm.data.Version;
58import org.openstreetmap.josm.data.coor.EastNorth;
59import org.openstreetmap.josm.data.coor.LatLon;
60import org.openstreetmap.josm.data.imagery.ImageryInfo;
61import org.openstreetmap.josm.data.imagery.ImageryInfo.ImageryType;
62import org.openstreetmap.josm.data.imagery.TMSCachedTileLoader;
63import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
64import org.openstreetmap.josm.data.preferences.BooleanProperty;
65import org.openstreetmap.josm.data.preferences.IntegerProperty;
66import org.openstreetmap.josm.data.preferences.StringProperty;
67import org.openstreetmap.josm.data.projection.Projection;
68import org.openstreetmap.josm.gui.ExtendedDialog;
69import org.openstreetmap.josm.gui.MapFrame;
70import org.openstreetmap.josm.gui.MapView;
71import org.openstreetmap.josm.gui.MapView.LayerChangeListener;
72import org.openstreetmap.josm.gui.PleaseWaitRunnable;
73import org.openstreetmap.josm.gui.dialogs.LayerListDialog;
74import org.openstreetmap.josm.gui.dialogs.LayerListPopup;
75import org.openstreetmap.josm.gui.progress.ProgressMonitor;
76import org.openstreetmap.josm.io.CacheCustomContent;
77import org.openstreetmap.josm.io.OsmTransferException;
78import org.openstreetmap.josm.io.UTFInputStreamReader;
79import org.openstreetmap.josm.tools.CheckParameterUtil;
80import org.openstreetmap.josm.tools.Utils;
81import org.xml.sax.InputSource;
82import org.xml.sax.SAXException;
83
84/**
85 * Class that displays a slippy map layer.
86 *
87 * @author Frederik Ramm
88 * @author LuVar <lubomir.varga@freemap.sk>
89 * @author Dave Hansen <dave@sr71.net>
90 * @author Upliner <upliner@gmail.com>
91 *
92 */
93public class TMSLayer extends ImageryLayer implements ImageObserver, TileLoaderListener {
94 public static final String PREFERENCE_PREFIX = "imagery.tms";
95
96 public static final int MAX_ZOOM = 30;
97 public static final int MIN_ZOOM = 2;
98 public static final int DEFAULT_MAX_ZOOM = 20;
99 public static final int DEFAULT_MIN_ZOOM = 2;
100
101 public static final BooleanProperty PROP_DEFAULT_AUTOZOOM = new BooleanProperty(PREFERENCE_PREFIX + ".default_autozoom", true);
102 public static final BooleanProperty PROP_DEFAULT_AUTOLOAD = new BooleanProperty(PREFERENCE_PREFIX + ".default_autoload", true);
103 public static final BooleanProperty PROP_DEFAULT_SHOWERRORS = new BooleanProperty(PREFERENCE_PREFIX + ".default_showerrors", true);
104 public static final IntegerProperty PROP_MIN_ZOOM_LVL = new IntegerProperty(PREFERENCE_PREFIX + ".min_zoom_lvl", DEFAULT_MIN_ZOOM);
105 public static final IntegerProperty PROP_MAX_ZOOM_LVL = new IntegerProperty(PREFERENCE_PREFIX + ".max_zoom_lvl", DEFAULT_MAX_ZOOM);
106 //public static final BooleanProperty PROP_DRAW_DEBUG = new BooleanProperty(PREFERENCE_PREFIX + ".draw_debug", false);
107 public static final BooleanProperty PROP_ADD_TO_SLIPPYMAP_CHOOSER = new BooleanProperty(PREFERENCE_PREFIX + ".add_to_slippymap_chooser", true);
108 public static final StringProperty PROP_TILECACHE_DIR;
109
110 static {
111 String defPath = null;
112 try {
113 defPath = new File(Main.pref.getCacheDirectory(), "tms").getAbsolutePath();
114 } catch (SecurityException e) {
115 Main.warn(e);
116 }
117 PROP_TILECACHE_DIR = new StringProperty(PREFERENCE_PREFIX + ".tilecache", defPath);
118 }
119
120 public interface TileLoaderFactory {
121 TileLoader makeTileLoader(TileLoaderListener listener);
122 TileLoader makeTileLoader(TileLoaderListener listener, Map<String, String> headers);
123 }
124
125 protected TileCache tileCache;
126 protected TileSource tileSource;
127 protected TileLoader tileLoader;
128
129
130 public static TileLoaderFactory loaderFactory = new TileLoaderFactory() {
131 @Override
132 public TileLoader makeTileLoader(TileLoaderListener listener, Map<String, String> inputHeaders) {
133 Map<String, String> headers = new HashMap<>();
134 headers.put("User-Agent", Version.getInstance().getFullAgentString());
135 headers.put("Accept", "text/html, image/png, image/jpeg, image/gif, */*");
136 if (inputHeaders != null)
137 headers.putAll(inputHeaders);
138
139 try {
140 return new TMSCachedTileLoader(listener, "TMS",
141 Main.pref.getInteger("socket.timeout.connect",15) * 1000,
142 Main.pref.getInteger("socket.timeout.read", 30) * 1000,
143 headers,
144 PROP_TILECACHE_DIR.get());
145 } catch (IOException e) {
146 Main.warn(e);
147 }
148 return null;
149 }
150
151 @Override
152 public TileLoader makeTileLoader(TileLoaderListener listener) {
153 return makeTileLoader(listener, null);
154 }
155 };
156
157 /**
158 * Plugins that wish to set custom tile loader should call this method
159 */
160
161 public static void setCustomTileLoaderFactory(TileLoaderFactory loaderFactory) {
162 TMSLayer.loaderFactory = loaderFactory;
163 }
164
165 @Override
166 public synchronized void tileLoadingFinished(Tile tile, boolean success) {
167 if (tile.hasError()) {
168 success = false;
169 tile.setImage(null);
170 }
171 if (sharpenLevel != 0 && success) {
172 tile.setImage(sharpenImage(tile.getImage()));
173 }
174 tile.setLoaded(success);
175 needRedraw = true;
176 if (Main.map != null) {
177 Main.map.repaint(100);
178 }
179 if (Main.isDebugEnabled()) {
180 Main.debug("tileLoadingFinished() tile: " + tile + " success: " + success);
181 }
182 }
183
184 /**
185 * Clears the tile cache.
186 *
187 * If the current tileLoader is an instance of OsmTileLoader, a new
188 * TmsTileClearController is created and passed to the according clearCache
189 * method.
190 *
191 * @param monitor
192 * @see OsmFileCacheTileLoader#clearCache(org.openstreetmap.gui.jmapviewer.interfaces.TileSource, org.openstreetmap.gui.jmapviewer.interfaces.TileClearController)
193 */
194 void clearTileCache(ProgressMonitor monitor) {
195 tileCache.clear();
196 if (tileLoader instanceof CachedTileLoader) {
197 ((CachedTileLoader)tileLoader).clearCache(tileSource);
198 }
199 }
200
201 /**
202 * Zoomlevel at which tiles is currently downloaded.
203 * Initial zoom lvl is set to bestZoom
204 */
205 public int currentZoomLevel;
206
207 private Tile clickedTile;
208 private boolean needRedraw;
209 private JPopupMenu tileOptionMenu;
210 private JCheckBoxMenuItem autoZoomPopup;
211 private JCheckBoxMenuItem autoLoadPopup;
212 private JCheckBoxMenuItem showErrorsPopup;
213 private Tile showMetadataTile;
214 private AttributionSupport attribution = new AttributionSupport();
215 private static final Font InfoFont = new Font("sansserif", Font.BOLD, 13);
216
217 protected boolean autoZoom;
218 protected boolean autoLoad;
219 protected boolean showErrors;
220
221 /**
222 * Initiates a repaint of Main.map
223 *
224 * @see Main#map
225 * @see MapFrame#repaint()
226 */
227 void redraw() {
228 needRedraw = true;
229 Main.map.repaint();
230 }
231
232 static int checkMaxZoomLvl(int maxZoomLvl, TileSource ts) {
233 if(maxZoomLvl > MAX_ZOOM) {
234 maxZoomLvl = MAX_ZOOM;
235 }
236 if(maxZoomLvl < PROP_MIN_ZOOM_LVL.get()) {
237 maxZoomLvl = PROP_MIN_ZOOM_LVL.get();
238 }
239 if (ts != null && ts.getMaxZoom() != 0 && ts.getMaxZoom() < maxZoomLvl) {
240 maxZoomLvl = ts.getMaxZoom();
241 }
242 return maxZoomLvl;
243 }
244
245 public static int getMaxZoomLvl(TileSource ts) {
246 return checkMaxZoomLvl(PROP_MAX_ZOOM_LVL.get(), ts);
247 }
248
249 public static void setMaxZoomLvl(int maxZoomLvl) {
250 maxZoomLvl = checkMaxZoomLvl(maxZoomLvl, null);
251 PROP_MAX_ZOOM_LVL.put(maxZoomLvl);
252 }
253
254 static int checkMinZoomLvl(int minZoomLvl, TileSource ts) {
255 if(minZoomLvl < MIN_ZOOM) {
256 /*Main.debug("Min. zoom level should not be less than "+MIN_ZOOM+"! Setting to that.");*/
257 minZoomLvl = MIN_ZOOM;
258 }
259 if(minZoomLvl > PROP_MAX_ZOOM_LVL.get()) {
260 /*Main.debug("Min. zoom level should not be more than Max. zoom level! Setting to Max.");*/
261 minZoomLvl = getMaxZoomLvl(ts);
262 }
263 if (ts != null && ts.getMinZoom() > minZoomLvl) {
264 /*Main.debug("Increasing min. zoom level to match tile source");*/
265 minZoomLvl = ts.getMinZoom();
266 }
267 return minZoomLvl;
268 }
269
270 public static int getMinZoomLvl(TileSource ts) {
271 return checkMinZoomLvl(PROP_MIN_ZOOM_LVL.get(), ts);
272 }
273
274 public static void setMinZoomLvl(int minZoomLvl) {
275 minZoomLvl = checkMinZoomLvl(minZoomLvl, null);
276 PROP_MIN_ZOOM_LVL.put(minZoomLvl);
277 }
278
279 private static class CachedAttributionBingAerialTileSource extends BingAerialTileSource {
280
281 public CachedAttributionBingAerialTileSource(ImageryInfo info) {
282 super(info);
283 }
284
285 class BingAttributionData extends CacheCustomContent<IOException> {
286
287 public BingAttributionData() {
288 super("bing.attribution.xml", CacheCustomContent.INTERVAL_HOURLY);
289 }
290
291 @Override
292 protected byte[] updateData() throws IOException {
293 URL u = getAttributionUrl();
294 try (Scanner scanner = new Scanner(UTFInputStreamReader.create(Utils.openURL(u)))) {
295 String r = scanner.useDelimiter("\\A").next();
296 Main.info("Successfully loaded Bing attribution data.");
297 return r.getBytes("UTF-8");
298 }
299 }
300 }
301
302 @Override
303 protected Callable<List<Attribution>> getAttributionLoaderCallable() {
304 return new Callable<List<Attribution>>() {
305
306 @Override
307 public List<Attribution> call() throws Exception {
308 BingAttributionData attributionLoader = new BingAttributionData();
309 int waitTimeSec = 1;
310 while (true) {
311 try {
312 String xml = attributionLoader.updateIfRequiredString();
313 return parseAttributionText(new InputSource(new StringReader(xml)));
314 } catch (IOException ex) {
315 Main.warn("Could not connect to Bing API. Will retry in " + waitTimeSec + " seconds.");
316 Thread.sleep(waitTimeSec * 1000L);
317 waitTimeSec *= 2;
318 }
319 }
320 }
321 };
322 }
323 }
324
325 /**
326 * Creates and returns a new TileSource instance depending on the {@link ImageryType}
327 * of the passed ImageryInfo object.
328 *
329 * If no appropriate TileSource is found, null is returned.
330 * Currently supported ImageryType are {@link ImageryType#TMS},
331 * {@link ImageryType#BING}, {@link ImageryType#SCANEX}.
332 *
333 * @param info
334 * @return a new TileSource instance or null if no TileSource for the ImageryInfo/ImageryType could be found.
335 * @throws IllegalArgumentException
336 */
337 public static TileSource getTileSource(ImageryInfo info) {
338 if (info.getImageryType() == ImageryType.TMS) {
339 checkUrl(info.getUrl());
340 TMSTileSource t = new TemplatedTMSTileSource(info);
341 info.setAttribution(t);
342 return t;
343 } else if (info.getImageryType() == ImageryType.BING) {
344 //return new CachedAttributionBingAerialTileSource(info.getId());
345 return new CachedAttributionBingAerialTileSource(info);
346 } else if (info.getImageryType() == ImageryType.SCANEX) {
347 //return new ScanexTileSource(info.getName(), info.getUrl(), info.getId(), info.getMaxZoom());
348 return new ScanexTileSource(info);
349 }
350 return null;
351 }
352
353 /**
354 * Checks validity of given URL.
355 * @param url URL to check
356 * @throws IllegalArgumentException if url is null or invalid
357 */
358 public static void checkUrl(String url) {
359 CheckParameterUtil.ensureParameterNotNull(url, "url");
360 Matcher m = Pattern.compile("\\{[^}]*\\}").matcher(url);
361 while (m.find()) {
362 boolean isSupportedPattern = false;
363 for (String pattern : TemplatedTMSTileSource.ALL_PATTERNS) {
364 if (m.group().matches(pattern)) {
365 isSupportedPattern = true;
366 break;
367 }
368 }
369 if (!isSupportedPattern) {
370 throw new IllegalArgumentException(
371 tr("{0} is not a valid TMS argument. Please check this server URL:\n{1}", m.group(), url));
372 }
373 }
374 }
375
376 private void initTileSource(TileSource tileSource) {
377 this.tileSource = tileSource;
378 attribution.initialize(tileSource);
379
380 currentZoomLevel = getBestZoom();
381
382 Map<String, String> headers = null;
383 if (tileSource instanceof TemplatedTMSTileSource) {
384 headers = (((TemplatedTMSTileSource)tileSource).getHeaders());
385 }
386
387 // FIXME: tileCache = new MemoryTileCache();
388 tileLoader = loaderFactory.makeTileLoader(this, headers);
389 if (tileLoader instanceof TMSCachedTileLoader) {
390 tileCache = (TileCache) tileLoader;
391 } else {
392 tileCache = new MemoryTileCache();
393 }
394 if (tileLoader == null)
395 tileLoader = new OsmTileLoader(this);
396 }
397
398 /**
399 * Marks layer as needing redraw on offset change
400 */
401 @Override
402 public void setOffset(double dx, double dy) {
403 super.setOffset(dx, dy);
404 needRedraw = true;
405 }
406 /**
407 * Returns average number of screen pixels per tile pixel for current mapview
408 */
409 private double getScaleFactor(int zoom) {
410 if (!Main.isDisplayingMapView()) return 1;
411 MapView mv = Main.map.mapView;
412 LatLon topLeft = mv.getLatLon(0, 0);
413 LatLon botRight = mv.getLatLon(mv.getWidth(), mv.getHeight());
414 double x1 = tileSource.lonToTileX(topLeft.lon(), zoom);
415 double y1 = tileSource.latToTileY(topLeft.lat(), zoom);
416 double x2 = tileSource.lonToTileX(botRight.lon(), zoom);
417 double y2 = tileSource.latToTileY(botRight.lat(), zoom);
418
419 int screenPixels = mv.getWidth()*mv.getHeight();
420 double tilePixels = Math.abs((y2-y1)*(x2-x1)*tileSource.getTileSize()*tileSource.getTileSize());
421 if (screenPixels == 0 || tilePixels == 0) return 1;
422 return screenPixels/tilePixels;
423 }
424
425 private final int getBestZoom() {
426 double factor = getScaleFactor(1); // check the ratio between area of tilesize at zoom 1 to current view
427 double result = Math.log(factor)/Math.log(2)/2+1;
428 /*
429 * Math.log(factor)/Math.log(2) - gives log base 2 of factor
430 * We divide result by 2, as factor contains ratio between areas. We could do Math.sqrt before log, or just divide log by 2
431 * In general, smaller zoom levels are more readable. We prefer big,
432 * block, pixelated (but readable) map text to small, smeared,
433 * unreadable underzoomed text. So, use .floor() instead of rounding
434 * to skew things a bit toward the lower zooms.
435 * Remember, that result here, should correspond to TMSLayer.paint(...)
436 * getScaleFactor(...) is supposed to be between 0.75 and 3
437 */
438 int intResult = (int)Math.floor(result);
439 if (intResult > getMaxZoomLvl())
440 return getMaxZoomLvl();
441 if (intResult < getMinZoomLvl())
442 return getMinZoomLvl();
443 return intResult;
444 }
445
446 @SuppressWarnings("serial")
447 public TMSLayer(ImageryInfo info) {
448 super(info);
449
450 if(!isProjectionSupported(Main.getProjection())) {
451 JOptionPane.showMessageDialog(Main.parent,
452 tr("TMS layers do not support the projection {0}.\n{1}\n"
453 + "Change the projection or remove the layer.",
454 Main.getProjection().toCode(), nameSupportedProjections()),
455 tr("Warning"),
456 JOptionPane.WARNING_MESSAGE);
457 }
458
459 setBackgroundLayer(true);
460 this.setVisible(true);
461
462 TileSource source = getTileSource(info);
463 if (source == null)
464 throw new IllegalStateException("Cannot create TMSLayer with non-TMS ImageryInfo");
465 initTileSource(source);
466 }
467
468 /**
469 * Adds a context menu to the mapView.
470 */
471 @Override
472 public void hookUpMapView() {
473 tileOptionMenu = new JPopupMenu();
474
475 autoZoom = PROP_DEFAULT_AUTOZOOM.get();
476 autoZoomPopup = new JCheckBoxMenuItem();
477 autoZoomPopup.setAction(new AbstractAction(tr("Auto Zoom")) {
478 @Override
479 public void actionPerformed(ActionEvent ae) {
480 autoZoom = !autoZoom;
481 }
482 });
483 autoZoomPopup.setSelected(autoZoom);
484 tileOptionMenu.add(autoZoomPopup);
485
486 autoLoad = PROP_DEFAULT_AUTOLOAD.get();
487 autoLoadPopup = new JCheckBoxMenuItem();
488 autoLoadPopup.setAction(new AbstractAction(tr("Auto load tiles")) {
489 @Override
490 public void actionPerformed(ActionEvent ae) {
491 autoLoad= !autoLoad;
492 }
493 });
494 autoLoadPopup.setSelected(autoLoad);
495 tileOptionMenu.add(autoLoadPopup);
496
497 showErrors = PROP_DEFAULT_SHOWERRORS.get();
498 showErrorsPopup = new JCheckBoxMenuItem();
499 showErrorsPopup.setAction(new AbstractAction(tr("Show Errors")) {
500 @Override
501 public void actionPerformed(ActionEvent ae) {
502 showErrors = !showErrors;
503 }
504 });
505 showErrorsPopup.setSelected(showErrors);
506 tileOptionMenu.add(showErrorsPopup);
507
508 tileOptionMenu.add(new JMenuItem(new AbstractAction(tr("Load Tile")) {
509 @Override
510 public void actionPerformed(ActionEvent ae) {
511 if (clickedTile != null) {
512 loadTile(clickedTile, true);
513 redraw();
514 }
515 }
516 }));
517
518 tileOptionMenu.add(new JMenuItem(new AbstractAction(
519 tr("Show Tile Info")) {
520 @Override
521 public void actionPerformed(ActionEvent ae) {
522 if (clickedTile != null) {
523 ExtendedDialog ed = new ExtendedDialog(Main.parent, tr("Tile Info"), new String[]{tr("OK")});
524 ed.setIcon(JOptionPane.INFORMATION_MESSAGE);
525 StringBuilder content = new StringBuilder();
526 content.append("Tile name: ").append(clickedTile.getKey()).append("\n");
527 try {
528 content.append("Tile url: ").append(clickedTile.getUrl()).append("\n");
529 } catch (IOException e) {
530 }
531 content.append("Tile size: ").append(clickedTile.getTileSource().getTileSize()).append("x").append(clickedTile.getTileSource().getTileSize()).append("\n");
532 Rectangle displaySize = tileToRect(clickedTile);
533 content.append("Tile display size: ").append(displaySize.width).append("x").append(displaySize.height).append("\n");
534 ed.setContent(content.toString());
535 ed.showDialog();
536 }
537 }
538 }));
539
540 /* FIXME
541 tileOptionMenu.add(new JMenuItem(new AbstractAction(
542 tr("Request Update")) {
543 public void actionPerformed(ActionEvent ae) {
544 if (clickedTile != null) {
545 clickedTile.requestUpdate();
546 redraw();
547 }
548 }
549 }));*/
550
551 tileOptionMenu.add(new JMenuItem(new AbstractAction(
552 tr("Load All Tiles")) {
553 @Override
554 public void actionPerformed(ActionEvent ae) {
555 loadAllTiles(true);
556 redraw();
557 }
558 }));
559
560 tileOptionMenu.add(new JMenuItem(new AbstractAction(
561 tr("Load All Error Tiles")) {
562 @Override
563 public void actionPerformed(ActionEvent ae) {
564 loadAllErrorTiles(true);
565 redraw();
566 }
567 }));
568
569 // increase and decrease commands
570 tileOptionMenu.add(new JMenuItem(new AbstractAction(
571 tr("Increase zoom")) {
572 @Override
573 public void actionPerformed(ActionEvent ae) {
574 increaseZoomLevel();
575 redraw();
576 }
577 }));
578
579 tileOptionMenu.add(new JMenuItem(new AbstractAction(
580 tr("Decrease zoom")) {
581 @Override
582 public void actionPerformed(ActionEvent ae) {
583 decreaseZoomLevel();
584 redraw();
585 }
586 }));
587
588 tileOptionMenu.add(new JMenuItem(new AbstractAction(
589 tr("Snap to tile size")) {
590 @Override
591 public void actionPerformed(ActionEvent ae) {
592 double new_factor = Math.sqrt(getScaleFactor(currentZoomLevel));
593 Main.map.mapView.zoomToFactor(new_factor);
594 redraw();
595 }
596 }));
597
598 tileOptionMenu.add(new JMenuItem(new AbstractAction(
599 tr("Flush Tile Cache")) {
600 @Override
601 public void actionPerformed(ActionEvent ae) {
602 new PleaseWaitRunnable(tr("Flush Tile Cache")) {
603 @Override
604 protected void realRun() throws SAXException, IOException,
605 OsmTransferException {
606 clearTileCache(getProgressMonitor());
607 }
608
609 @Override
610 protected void finish() {
611 }
612
613 @Override
614 protected void cancel() {
615 }
616 }.run();
617 }
618 }));
619
620 final MouseAdapter adapter = new MouseAdapter() {
621 @Override
622 public void mouseClicked(MouseEvent e) {
623 if (!isVisible()) return;
624 if (e.getButton() == MouseEvent.BUTTON3) {
625 clickedTile = getTileForPixelpos(e.getX(), e.getY());
626 tileOptionMenu.show(e.getComponent(), e.getX(), e.getY());
627 } else if (e.getButton() == MouseEvent.BUTTON1) {
628 attribution.handleAttribution(e.getPoint(), true);
629 }
630 }
631 };
632 Main.map.mapView.addMouseListener(adapter);
633
634 MapView.addLayerChangeListener(new LayerChangeListener() {
635 @Override
636 public void activeLayerChange(Layer oldLayer, Layer newLayer) {
637 //
638 }
639
640 @Override
641 public void layerAdded(Layer newLayer) {
642 //
643 }
644
645 @Override
646 public void layerRemoved(Layer oldLayer) {
647 if (oldLayer == TMSLayer.this) {
648 Main.map.mapView.removeMouseListener(adapter);
649 MapView.removeLayerChangeListener(this);
650 }
651 }
652 });
653 }
654
655 void zoomChanged() {
656 if (Main.isDebugEnabled()) {
657 Main.debug("zoomChanged(): " + currentZoomLevel);
658 }
659 needRedraw = true;
660 }
661
662 int getMaxZoomLvl() {
663 if (info.getMaxZoom() != 0)
664 return checkMaxZoomLvl(info.getMaxZoom(), tileSource);
665 else
666 return getMaxZoomLvl(tileSource);
667 }
668
669 int getMinZoomLvl() {
670 return getMinZoomLvl(tileSource);
671 }
672
673 /**
674 * Zoom in, go closer to map.
675 *
676 * @return true, if zoom increasing was successfull, false othervise
677 */
678 public boolean zoomIncreaseAllowed() {
679 boolean zia = currentZoomLevel < this.getMaxZoomLvl();
680 if (Main.isDebugEnabled()) {
681 Main.debug("zoomIncreaseAllowed(): " + zia + " " + currentZoomLevel + " vs. " + this.getMaxZoomLvl() );
682 }
683 return zia;
684 }
685
686 public boolean increaseZoomLevel() {
687 if (zoomIncreaseAllowed()) {
688 currentZoomLevel++;
689 if (Main.isDebugEnabled()) {
690 Main.debug("increasing zoom level to: " + currentZoomLevel);
691 }
692 zoomChanged();
693 } else {
694 Main.warn("Current zoom level ("+currentZoomLevel+") could not be increased. "+
695 "Max.zZoom Level "+this.getMaxZoomLvl()+" reached.");
696 return false;
697 }
698 return true;
699 }
700
701 public boolean setZoomLevel(int zoom) {
702 if (zoom == currentZoomLevel) return true;
703 if (zoom > this.getMaxZoomLvl()) return false;
704 if (zoom < this.getMinZoomLvl()) return false;
705 currentZoomLevel = zoom;
706 zoomChanged();
707 return true;
708 }
709
710 /**
711 * Check if zooming out is allowed
712 *
713 * @return true, if zooming out is allowed (currentZoomLevel &gt; minZoomLevel)
714 */
715 public boolean zoomDecreaseAllowed() {
716 return currentZoomLevel > this.getMinZoomLvl();
717 }
718
719 /**
720 * Zoom out from map.
721 *
722 * @return true, if zoom increasing was successfull, false othervise
723 */
724 public boolean decreaseZoomLevel() {
725 //int minZoom = this.getMinZoomLvl();
726 if (zoomDecreaseAllowed()) {
727 if (Main.isDebugEnabled()) {
728 Main.debug("decreasing zoom level to: " + currentZoomLevel);
729 }
730 currentZoomLevel--;
731 zoomChanged();
732 } else {
733 /*Main.debug("Current zoom level could not be decreased. Min. zoom level "+minZoom+" reached.");*/
734 return false;
735 }
736 return true;
737 }
738
739 /*
740 * We use these for quick, hackish calculations. They
741 * are temporary only and intentionally not inserted
742 * into the tileCache.
743 */
744 Tile tempCornerTile(Tile t) {
745 int x = t.getXtile() + 1;
746 int y = t.getYtile() + 1;
747 int zoom = t.getZoom();
748 Tile tile = getTile(x, y, zoom);
749 if (tile != null)
750 return tile;
751 return new Tile(tileSource, x, y, zoom);
752 }
753
754 Tile getOrCreateTile(int x, int y, int zoom) {
755 Tile tile = getTile(x, y, zoom);
756 if (tile == null) {
757 tile = new Tile(tileSource, x, y, zoom);
758 tileCache.addTile(tile);
759 tile.loadPlaceholderFromCache(tileCache);
760 }
761 return tile;
762 }
763
764 /*
765 * This can and will return null for tiles that are not
766 * already in the cache.
767 */
768 Tile getTile(int x, int y, int zoom) {
769 int max = 1 << zoom;
770 if (x < 0 || x >= max || y < 0 || y >= max)
771 return null;
772 return tileCache.getTile(tileSource, x, y, zoom);
773 }
774
775 boolean loadTile(Tile tile, boolean force) {
776 if (tile == null)
777 return false;
778 if (!force && (tile.isLoaded() || tile.hasError()))
779 return false;
780 if (tile.isLoading())
781 return false;
782 tileLoader.createTileLoaderJob(tile).submit();
783 return true;
784 }
785
786 void loadAllTiles(boolean force) {
787 MapView mv = Main.map.mapView;
788 EastNorth topLeft = mv.getEastNorth(0, 0);
789 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight());
790
791 TileSet ts = new TileSet(topLeft, botRight, currentZoomLevel);
792
793 // if there is more than 18 tiles on screen in any direction, do not
794 // load all tiles!
795 if (ts.tooLarge()) {
796 Main.warn("Not downloading all tiles because there is more than 18 tiles on an axis!");
797 return;
798 }
799 ts.loadAllTiles(force);
800 }
801
802 void loadAllErrorTiles(boolean force) {
803 MapView mv = Main.map.mapView;
804 EastNorth topLeft = mv.getEastNorth(0, 0);
805 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight());
806
807 TileSet ts = new TileSet(topLeft, botRight, currentZoomLevel);
808
809 ts.loadAllErrorTiles(force);
810 }
811
812 @Override
813 public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height) {
814 boolean done = (infoflags & (ERROR | FRAMEBITS | ALLBITS)) != 0;
815 needRedraw = true;
816 if (Main.isDebugEnabled()) {
817 Main.debug("imageUpdate() done: " + done + " calling repaint");
818 }
819 Main.map.repaint(done ? 0 : 100);
820 return !done;
821 }
822
823 boolean imageLoaded(Image i) {
824 if (i == null)
825 return false;
826 int status = Toolkit.getDefaultToolkit().checkImage(i, -1, -1, this);
827 if ((status & ALLBITS) != 0)
828 return true;
829 return false;
830 }
831
832 /**
833 * Returns the image for the given tile if both tile and image are loaded.
834 * Otherwise returns null.
835 *
836 * @param tile the Tile for which the image should be returned
837 * @return the image of the tile or null.
838 */
839 Image getLoadedTileImage(Tile tile) {
840 if (!tile.isLoaded())
841 return null;
842 Image img = tile.getImage();
843 if (!imageLoaded(img))
844 return null;
845 return img;
846 }
847
848 LatLon tileLatLon(Tile t) {
849 int zoom = t.getZoom();
850 return new LatLon(tileSource.tileYToLat(t.getYtile(), zoom),
851 tileSource.tileXToLon(t.getXtile(), zoom));
852 }
853
854 Rectangle tileToRect(Tile t1) {
855 /*
856 * We need to get a box in which to draw, so advance by one tile in
857 * each direction to find the other corner of the box.
858 * Note: this somewhat pollutes the tile cache
859 */
860 Tile t2 = tempCornerTile(t1);
861 Rectangle rect = new Rectangle(pixelPos(t1));
862 rect.add(pixelPos(t2));
863 return rect;
864 }
865
866 // 'source' is the pixel coordinates for the area that
867 // the img is capable of filling in. However, we probably
868 // only want a portion of it.
869 //
870 // 'border' is the screen cordinates that need to be drawn.
871 // We must not draw outside of it.
872 void drawImageInside(Graphics g, Image sourceImg, Rectangle source, Rectangle border) {
873 Rectangle target = source;
874
875 // If a border is specified, only draw the intersection
876 // if what we have combined with what we are supposed
877 // to draw.
878 if (border != null) {
879 target = source.intersection(border);
880 if (Main.isDebugEnabled()) {
881 Main.debug("source: " + source + "\nborder: " + border + "\nintersection: " + target);
882 }
883 }
884
885 // All of the rectangles are in screen coordinates. We need
886 // to how these correlate to the sourceImg pixels. We could
887 // avoid doing this by scaling the image up to the 'source' size,
888 // but this should be cheaper.
889 //
890 // In some projections, x any y are scaled differently enough to
891 // cause a pixel or two of fudge. Calculate them separately.
892 double imageYScaling = sourceImg.getHeight(this) / source.getHeight();
893 double imageXScaling = sourceImg.getWidth(this) / source.getWidth();
894
895 // How many pixels into the 'source' rectangle are we drawing?
896 int screen_x_offset = target.x - source.x;
897 int screen_y_offset = target.y - source.y;
898 // And how many pixels into the image itself does that
899 // correlate to?
900 int img_x_offset = (int)(screen_x_offset * imageXScaling + 0.5);
901 int img_y_offset = (int)(screen_y_offset * imageYScaling + 0.5);
902 // Now calculate the other corner of the image that we need
903 // by scaling the 'target' rectangle's dimensions.
904 int img_x_end = img_x_offset + (int)(target.getWidth() * imageXScaling + 0.5);
905 int img_y_end = img_y_offset + (int)(target.getHeight() * imageYScaling + 0.5);
906
907 if (Main.isDebugEnabled()) {
908 Main.debug("drawing image into target rect: " + target);
909 }
910 g.drawImage(sourceImg,
911 target.x, target.y,
912 target.x + target.width, target.y + target.height,
913 img_x_offset, img_y_offset,
914 img_x_end, img_y_end,
915 this);
916 if (PROP_FADE_AMOUNT.get() != 0) {
917 // dimm by painting opaque rect...
918 g.setColor(getFadeColorWithAlpha());
919 g.fillRect(target.x, target.y,
920 target.width, target.height);
921 }
922 }
923
924 // This function is called for several zoom levels, not just
925 // the current one. It should not trigger any tiles to be
926 // downloaded. It should also avoid polluting the tile cache
927 // with any tiles since these tiles are not mandatory.
928 //
929 // The "border" tile tells us the boundaries of where we may
930 // draw. It will not be from the zoom level that is being
931 // drawn currently. If drawing the displayZoomLevel,
932 // border is null and we draw the entire tile set.
933 List<Tile> paintTileImages(Graphics g, TileSet ts, int zoom, Tile border) {
934 if (zoom <= 0) return Collections.emptyList();
935 Rectangle borderRect = null;
936 if (border != null) {
937 borderRect = tileToRect(border);
938 }
939 List<Tile> missedTiles = new LinkedList<>();
940 // The callers of this code *require* that we return any tiles
941 // that we do not draw in missedTiles. ts.allExistingTiles() by
942 // default will only return already-existing tiles. However, we
943 // need to return *all* tiles to the callers, so force creation
944 // here.
945 //boolean forceTileCreation = true;
946 for (Tile tile : ts.allTilesCreate()) {
947 Image img = getLoadedTileImage(tile);
948 if (img == null || tile.hasError()) {
949 if (Main.isDebugEnabled()) {
950 Main.debug("missed tile: " + tile);
951 }
952 missedTiles.add(tile);
953 continue;
954 }
955 Rectangle sourceRect = tileToRect(tile);
956 if (borderRect != null && !sourceRect.intersects(borderRect)) {
957 continue;
958 }
959 drawImageInside(g, img, sourceRect, borderRect);
960 }
961 return missedTiles;
962 }
963
964 void myDrawString(Graphics g, String text, int x, int y) {
965 Color oldColor = g.getColor();
966 g.setColor(Color.black);
967 g.drawString(text,x+1,y+1);
968 g.setColor(oldColor);
969 g.drawString(text,x,y);
970 }
971
972 void paintTileText(TileSet ts, Tile tile, Graphics g, MapView mv, int zoom, Tile t) {
973 int fontHeight = g.getFontMetrics().getHeight();
974 if (tile == null)
975 return;
976 Point p = pixelPos(t);
977 int texty = p.y + 2 + fontHeight;
978
979 /*if (PROP_DRAW_DEBUG.get()) {
980 myDrawString(g, "x=" + t.getXtile() + " y=" + t.getYtile() + " z=" + zoom + "", p.x + 2, texty);
981 texty += 1 + fontHeight;
982 if ((t.getXtile() % 32 == 0) && (t.getYtile() % 32 == 0)) {
983 myDrawString(g, "x=" + t.getXtile() / 32 + " y=" + t.getYtile() / 32 + " z=7", p.x + 2, texty);
984 texty += 1 + fontHeight;
985 }
986 }*/
987
988 if (tile == showMetadataTile) {
989 String md = tile.toString();
990 if (md != null) {
991 myDrawString(g, md, p.x + 2, texty);
992 texty += 1 + fontHeight;
993 }
994 Map<String, String> meta = tile.getMetadata();
995 if (meta != null) {
996 for (Map.Entry<String, String> entry : meta.entrySet()) {
997 myDrawString(g, entry.getKey() + ": " + entry.getValue(), p.x + 2, texty);
998 texty += 1 + fontHeight;
999 }
1000 }
1001 }
1002
1003 /*String tileStatus = tile.getStatus();
1004 if (!tile.isLoaded() && PROP_DRAW_DEBUG.get()) {
1005 myDrawString(g, tr("image " + tileStatus), p.x + 2, texty);
1006 texty += 1 + fontHeight;
1007 }*/
1008
1009 if (tile.hasError() && showErrors) {
1010 myDrawString(g, tr("Error") + ": " + tr(tile.getErrorMessage()), p.x + 2, texty);
1011 texty += 1 + fontHeight;
1012 }
1013
1014 /*int xCursor = -1;
1015 int yCursor = -1;
1016 if (PROP_DRAW_DEBUG.get()) {
1017 if (yCursor < t.getYtile()) {
1018 if (t.getYtile() % 32 == 31) {
1019 g.fillRect(0, p.y - 1, mv.getWidth(), 3);
1020 } else {
1021 g.drawLine(0, p.y, mv.getWidth(), p.y);
1022 }
1023 yCursor = t.getYtile();
1024 }
1025 // This draws the vertical lines for the entire
1026 // column. Only draw them for the top tile in
1027 // the column.
1028 if (xCursor < t.getXtile()) {
1029 if (t.getXtile() % 32 == 0) {
1030 // level 7 tile boundary
1031 g.fillRect(p.x - 1, 0, 3, mv.getHeight());
1032 } else {
1033 g.drawLine(p.x, 0, p.x, mv.getHeight());
1034 }
1035 xCursor = t.getXtile();
1036 }
1037 }*/
1038 }
1039
1040 private Point pixelPos(LatLon ll) {
1041 return Main.map.mapView.getPoint(Main.getProjection().latlon2eastNorth(ll).add(getDx(), getDy()));
1042 }
1043
1044 private Point pixelPos(Tile t) {
1045 double lon = tileSource.tileXToLon(t.getXtile(), t.getZoom());
1046 LatLon tmpLL = new LatLon(tileSource.tileYToLat(t.getYtile(), t.getZoom()), lon);
1047 return pixelPos(tmpLL);
1048 }
1049
1050 private LatLon getShiftedLatLon(EastNorth en) {
1051 return Main.getProjection().eastNorth2latlon(en.add(-getDx(), -getDy()));
1052 }
1053
1054 private Coordinate getShiftedCoord(EastNorth en) {
1055 LatLon ll = getShiftedLatLon(en);
1056 return new Coordinate(ll.lat(),ll.lon());
1057 }
1058
1059 private final TileSet nullTileSet = new TileSet((LatLon)null, (LatLon)null, 0);
1060 private class TileSet {
1061 private int x0, x1, y0, y1;
1062 private int zoom;
1063 private int tileMax = -1;
1064
1065 /**
1066 * Create a TileSet by EastNorth bbox taking a layer shift in account
1067 */
1068 TileSet(EastNorth topLeft, EastNorth botRight, int zoom) {
1069 this(getShiftedLatLon(topLeft), getShiftedLatLon(botRight),zoom);
1070 }
1071
1072 /**
1073 * Create a TileSet by known LatLon bbox without layer shift correction
1074 */
1075 TileSet(LatLon topLeft, LatLon botRight, int zoom) {
1076 this.zoom = zoom;
1077 if (zoom == 0)
1078 return;
1079
1080 x0 = (int)tileSource.lonToTileX(topLeft.lon(), zoom);
1081 y0 = (int)tileSource.latToTileY(topLeft.lat(), zoom);
1082 x1 = (int)tileSource.lonToTileX(botRight.lon(), zoom);
1083 y1 = (int)tileSource.latToTileY(botRight.lat(), zoom);
1084 if (x0 > x1) {
1085 int tmp = x0;
1086 x0 = x1;
1087 x1 = tmp;
1088 }
1089 if (y0 > y1) {
1090 int tmp = y0;
1091 y0 = y1;
1092 y1 = tmp;
1093 }
1094 tileMax = (int)Math.pow(2.0, zoom);
1095 if (x0 < 0) {
1096 x0 = 0;
1097 }
1098 if (y0 < 0) {
1099 y0 = 0;
1100 }
1101 if (x1 > tileMax) {
1102 x1 = tileMax;
1103 }
1104 if (y1 > tileMax) {
1105 y1 = tileMax;
1106 }
1107 }
1108
1109 boolean tooSmall() {
1110 return this.tilesSpanned() < 2.1;
1111 }
1112
1113 boolean tooLarge() {
1114 return this.tilesSpanned() > 10;
1115 }
1116
1117 boolean insane() {
1118 return this.tilesSpanned() > 100;
1119 }
1120
1121 double tilesSpanned() {
1122 return Math.sqrt(1.0 * this.size());
1123 }
1124
1125 int size() {
1126 int x_span = x1 - x0 + 1;
1127 int y_span = y1 - y0 + 1;
1128 return x_span * y_span;
1129 }
1130
1131 /*
1132 * Get all tiles represented by this TileSet that are
1133 * already in the tileCache.
1134 */
1135 List<Tile> allExistingTiles() {
1136 return this.__allTiles(false);
1137 }
1138
1139 List<Tile> allTilesCreate() {
1140 return this.__allTiles(true);
1141 }
1142
1143 private List<Tile> __allTiles(boolean create) {
1144 // Tileset is either empty or too large
1145 if (zoom == 0 || this.insane())
1146 return Collections.emptyList();
1147 List<Tile> ret = new ArrayList<>();
1148 for (int x = x0; x <= x1; x++) {
1149 for (int y = y0; y <= y1; y++) {
1150 Tile t;
1151 if (create) {
1152 t = getOrCreateTile(x % tileMax, y % tileMax, zoom);
1153 } else {
1154 t = getTile(x % tileMax, y % tileMax, zoom);
1155 }
1156 if (t != null) {
1157 ret.add(t);
1158 }
1159 }
1160 }
1161 return ret;
1162 }
1163
1164 private List<Tile> allLoadedTiles() {
1165 List<Tile> ret = new ArrayList<>();
1166 for (Tile t : this.allExistingTiles()) {
1167 if (t.isLoaded())
1168 ret.add(t);
1169 }
1170 return ret;
1171 }
1172
1173 void loadAllTiles(boolean force) {
1174 if (!autoLoad && !force)
1175 return;
1176 for (Tile t : this.allTilesCreate()) {
1177 loadTile(t, false);
1178 }
1179 }
1180
1181 void loadAllErrorTiles(boolean force) {
1182 if (!autoLoad && !force)
1183 return;
1184 for (Tile t : this.allTilesCreate()) {
1185 if (t.hasError()) {
1186 loadTile(t, true);
1187 }
1188 }
1189 }
1190 }
1191
1192
1193 private static class TileSetInfo {
1194 public boolean hasVisibleTiles = false;
1195 public boolean hasOverzoomedTiles = false;
1196 public boolean hasLoadingTiles = false;
1197 }
1198
1199 private static TileSetInfo getTileSetInfo(TileSet ts) {
1200 List<Tile> allTiles = ts.allExistingTiles();
1201 TileSetInfo result = new TileSetInfo();
1202 result.hasLoadingTiles = allTiles.size() < ts.size();
1203 for (Tile t : allTiles) {
1204 if (t.isLoaded()) {
1205 if (!t.hasError()) {
1206 result.hasVisibleTiles = true;
1207 }
1208 if ("no-tile".equals(t.getValue("tile-info"))) {
1209 result.hasOverzoomedTiles = true;
1210 }
1211 } else {
1212 result.hasLoadingTiles = true;
1213 }
1214 }
1215 return result;
1216 }
1217
1218 private class DeepTileSet {
1219 private final EastNorth topLeft, botRight;
1220 private final int minZoom, maxZoom;
1221 private final TileSet[] tileSets;
1222 private final TileSetInfo[] tileSetInfos;
1223 public DeepTileSet(EastNorth topLeft, EastNorth botRight, int minZoom, int maxZoom) {
1224 this.topLeft = topLeft;
1225 this.botRight = botRight;
1226 this.minZoom = minZoom;
1227 this.maxZoom = maxZoom;
1228 this.tileSets = new TileSet[maxZoom - minZoom + 1];
1229 this.tileSetInfos = new TileSetInfo[maxZoom - minZoom + 1];
1230 }
1231 public TileSet getTileSet(int zoom) {
1232 if (zoom < minZoom)
1233 return nullTileSet;
1234 synchronized (tileSets) {
1235 TileSet ts = tileSets[zoom-minZoom];
1236 if (ts == null) {
1237 ts = new TileSet(topLeft, botRight, zoom);
1238 tileSets[zoom-minZoom] = ts;
1239 }
1240 return ts;
1241 }
1242 }
1243
1244 public TileSetInfo getTileSetInfo(int zoom) {
1245 if (zoom < minZoom)
1246 return new TileSetInfo();
1247 synchronized (tileSetInfos) {
1248 TileSetInfo tsi = tileSetInfos[zoom-minZoom];
1249 if (tsi == null) {
1250 tsi = TMSLayer.getTileSetInfo(getTileSet(zoom));
1251 tileSetInfos[zoom-minZoom] = tsi;
1252 }
1253 return tsi;
1254 }
1255 }
1256 }
1257
1258 @Override
1259 public void paint(Graphics2D g, MapView mv, Bounds bounds) {
1260 EastNorth topLeft = mv.getEastNorth(0, 0);
1261 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight());
1262
1263 if (botRight.east() == 0.0 || botRight.north() == 0) {
1264 /*Main.debug("still initializing??");*/
1265 // probably still initializing
1266 return;
1267 }
1268
1269 needRedraw = false;
1270
1271 int zoom = currentZoomLevel;
1272 if (autoZoom) {
1273 double pixelScaling = getScaleFactor(zoom);
1274 if (pixelScaling > 3 || pixelScaling < 0.7) {
1275 zoom = getBestZoom();
1276 }
1277 }
1278
1279 DeepTileSet dts = new DeepTileSet(topLeft, botRight, getMinZoomLvl(), zoom);
1280 TileSet ts = dts.getTileSet(zoom);
1281
1282 int displayZoomLevel = zoom;
1283
1284 boolean noTilesAtZoom = false;
1285 if (autoZoom && autoLoad) {
1286 // Auto-detection of tilesource maxzoom (currently fully works only for Bing)
1287 TileSetInfo tsi = dts.getTileSetInfo(zoom);
1288 if (!tsi.hasVisibleTiles && (!tsi.hasLoadingTiles || tsi.hasOverzoomedTiles)) {
1289 noTilesAtZoom = true;
1290 }
1291 // Find highest zoom level with at least one visible tile
1292 for (int tmpZoom = zoom; tmpZoom > dts.minZoom; tmpZoom--) {
1293 if (dts.getTileSetInfo(tmpZoom).hasVisibleTiles) {
1294 displayZoomLevel = tmpZoom;
1295 break;
1296 }
1297 }
1298 // Do binary search between currentZoomLevel and displayZoomLevel
1299 while (zoom > displayZoomLevel && !tsi.hasVisibleTiles && tsi.hasOverzoomedTiles){
1300 zoom = (zoom + displayZoomLevel)/2;
1301 tsi = dts.getTileSetInfo(zoom);
1302 }
1303
1304 setZoomLevel(zoom);
1305
1306 // If all tiles at displayZoomLevel is loaded, load all tiles at next zoom level
1307 // to make sure there're really no more zoom levels
1308 if (zoom == displayZoomLevel && !tsi.hasLoadingTiles && zoom < dts.maxZoom) {
1309 zoom++;
1310 tsi = dts.getTileSetInfo(zoom);
1311 }
1312 // When we have overzoomed tiles and all tiles at current zoomlevel is loaded,
1313 // load tiles at previovus zoomlevels until we have all tiles on screen is loaded.
1314 while (zoom > dts.minZoom && tsi.hasOverzoomedTiles && !tsi.hasLoadingTiles) {
1315 zoom--;
1316 tsi = dts.getTileSetInfo(zoom);
1317 }
1318 ts = dts.getTileSet(zoom);
1319 } else if (autoZoom) {
1320 setZoomLevel(zoom);
1321 }
1322
1323 // Too many tiles... refuse to download
1324 if (!ts.tooLarge()) {
1325 //Main.debug("size: " + ts.size() + " spanned: " + ts.tilesSpanned());
1326 ts.loadAllTiles(false);
1327 }
1328
1329 if (displayZoomLevel != zoom) {
1330 ts = dts.getTileSet(displayZoomLevel);
1331 }
1332
1333 g.setColor(Color.DARK_GRAY);
1334
1335 List<Tile> missedTiles = this.paintTileImages(g, ts, displayZoomLevel, null);
1336 int[] otherZooms = { -1, 1, -2, 2, -3, -4, -5};
1337 for (int zoomOffset : otherZooms) {
1338 if (!autoZoom) {
1339 break;
1340 }
1341 int newzoom = displayZoomLevel + zoomOffset;
1342 if (newzoom < MIN_ZOOM) {
1343 continue;
1344 }
1345 if (missedTiles.isEmpty()) {
1346 break;
1347 }
1348 List<Tile> newlyMissedTiles = new LinkedList<>();
1349 for (Tile missed : missedTiles) {
1350 if ("no-tile".equals(missed.getValue("tile-info")) && zoomOffset > 0) {
1351 // Don't try to paint from higher zoom levels when tile is overzoomed
1352 newlyMissedTiles.add(missed);
1353 continue;
1354 }
1355 Tile t2 = tempCornerTile(missed);
1356 LatLon topLeft2 = tileLatLon(missed);
1357 LatLon botRight2 = tileLatLon(t2);
1358 TileSet ts2 = new TileSet(topLeft2, botRight2, newzoom);
1359 // Instantiating large TileSets is expensive. If there
1360 // are no loaded tiles, don't bother even trying.
1361 if (ts2.allLoadedTiles().isEmpty()) {
1362 newlyMissedTiles.add(missed);
1363 continue;
1364 }
1365 if (ts2.tooLarge()) {
1366 continue;
1367 }
1368 newlyMissedTiles.addAll(this.paintTileImages(g, ts2, newzoom, missed));
1369 }
1370 missedTiles = newlyMissedTiles;
1371 }
1372 if (Main.isDebugEnabled() && !missedTiles.isEmpty()) {
1373 Main.debug("still missed "+missedTiles.size()+" in the end");
1374 }
1375 g.setColor(Color.red);
1376 g.setFont(InfoFont);
1377
1378 // The current zoom tileset should have all of its tiles
1379 // due to the loadAllTiles(), unless it to tooLarge()
1380 for (Tile t : ts.allExistingTiles()) {
1381 this.paintTileText(ts, t, g, mv, displayZoomLevel, t);
1382 }
1383
1384 attribution.paintAttribution(g, mv.getWidth(), mv.getHeight(), getShiftedCoord(topLeft), getShiftedCoord(botRight), displayZoomLevel, this);
1385
1386 //g.drawString("currentZoomLevel=" + currentZoomLevel, 120, 120);
1387 g.setColor(Color.lightGray);
1388 if (!autoZoom) {
1389 if (ts.insane()) {
1390 myDrawString(g, tr("zoom in to load any tiles"), 120, 120);
1391 } else if (ts.tooLarge()) {
1392 myDrawString(g, tr("zoom in to load more tiles"), 120, 120);
1393 } else if (ts.tooSmall()) {
1394 myDrawString(g, tr("increase zoom level to see more detail"), 120, 120);
1395 }
1396 }
1397 if (noTilesAtZoom) {
1398 myDrawString(g, tr("No tiles at this zoom level"), 120, 120);
1399 }
1400 if (Main.isDebugEnabled()) {
1401 myDrawString(g, tr("Current zoom: {0}", currentZoomLevel), 50, 140);
1402 myDrawString(g, tr("Display zoom: {0}", displayZoomLevel), 50, 155);
1403 myDrawString(g, tr("Pixel scale: {0}", getScaleFactor(currentZoomLevel)), 50, 170);
1404 myDrawString(g, tr("Best zoom: {0}", getBestZoom()), 50, 185);
1405 if(tileLoader instanceof TMSCachedTileLoader) {
1406 TMSCachedTileLoader cachedTileLoader = (TMSCachedTileLoader)tileLoader;
1407 int offset = 185;
1408 for(String part: cachedTileLoader.getStats().split("\n")) {
1409 myDrawString(g, tr("Cache stats: {0}", part), 50, offset+=15);
1410 }
1411
1412 }
1413 }
1414 }
1415
1416 /**
1417 * This isn't very efficient, but it is only used when the
1418 * user right-clicks on the map.
1419 */
1420 Tile getTileForPixelpos(int px, int py) {
1421 if (Main.isDebugEnabled()) {
1422 Main.debug("getTileForPixelpos("+px+", "+py+")");
1423 }
1424 MapView mv = Main.map.mapView;
1425 Point clicked = new Point(px, py);
1426 EastNorth topLeft = mv.getEastNorth(0, 0);
1427 EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight());
1428 int z = currentZoomLevel;
1429 TileSet ts = new TileSet(topLeft, botRight, z);
1430
1431 if (!ts.tooLarge()) {
1432 ts.loadAllTiles(false); // make sure there are tile objects for all tiles
1433 }
1434 Tile clickedTile = null;
1435 for (Tile t1 : ts.allExistingTiles()) {
1436 Tile t2 = tempCornerTile(t1);
1437 Rectangle r = new Rectangle(pixelPos(t1));
1438 r.add(pixelPos(t2));
1439 if (Main.isDebugEnabled()) {
1440 Main.debug("r: " + r + " clicked: " + clicked);
1441 }
1442 if (!r.contains(clicked)) {
1443 continue;
1444 }
1445 clickedTile = t1;
1446 break;
1447 }
1448 if (clickedTile == null)
1449 return null;
1450 /*Main.debug("Clicked on tile: " + clickedTile.getXtile() + " " + clickedTile.getYtile() +
1451 " currentZoomLevel: " + currentZoomLevel);*/
1452 return clickedTile;
1453 }
1454
1455 @Override
1456 public Action[] getMenuEntries() {
1457 return new Action[] {
1458 LayerListDialog.getInstance().createShowHideLayerAction(),
1459 LayerListDialog.getInstance().createDeleteLayerAction(),
1460 SeparatorLayerAction.INSTANCE,
1461 // color,
1462 new OffsetAction(),
1463 new RenameLayerAction(this.getAssociatedFile(), this),
1464 SeparatorLayerAction.INSTANCE,
1465 new LayerListPopup.InfoAction(this) };
1466 }
1467
1468 @Override
1469 public String getToolTipText() {
1470 return tr("TMS layer ({0}), downloading in zoom {1}", getName(), currentZoomLevel);
1471 }
1472
1473 @Override
1474 public void visitBoundingBox(BoundingXYVisitor v) {
1475 }
1476
1477 @Override
1478 public boolean isChanged() {
1479 return needRedraw;
1480 }
1481
1482 @Override
1483 public final boolean isProjectionSupported(Projection proj) {
1484 return "EPSG:3857".equals(proj.toCode()) || "EPSG:4326".equals(proj.toCode());
1485 }
1486
1487 @Override
1488 public final String nameSupportedProjections() {
1489 return tr("EPSG:4326 and Mercator projection are supported");
1490 }
1491}
Note: See TracBrowser for help on using the repository browser.