1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.layer;
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3 |
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4 | import java.io.IOException;
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5 | import java.util.Collection;
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6 |
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7 | import org.apache.commons.jcs.access.CacheAccess;
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8 | import org.openstreetmap.gui.jmapviewer.interfaces.TileLoader;
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9 | import org.openstreetmap.josm.Main;
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10 | import org.openstreetmap.josm.data.cache.BufferedImageCacheEntry;
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11 | import org.openstreetmap.josm.data.imagery.ImageryInfo;
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12 | import org.openstreetmap.josm.data.imagery.ImageryInfo.ImageryType;
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13 | import org.openstreetmap.josm.data.imagery.WMSCachedTileLoader;
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14 | import org.openstreetmap.josm.data.imagery.WMTSTileSource;
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15 | import org.openstreetmap.josm.data.projection.Projection;
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16 | import org.openstreetmap.josm.gui.layer.imagery.TileSourceDisplaySettings;
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17 | import org.openstreetmap.josm.tools.Logging;
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18 | import org.openstreetmap.josm.tools.Utils;
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19 |
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20 | /**
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21 | * WMTS layer based on AbstractTileSourceLayer. Overrides few methods to align WMTS to Tile based computations
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22 | * but most magic is done within WMTSTileSource class.
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23 | *
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24 | * Full specification of the protocol available at:
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25 | * http://www.opengeospatial.org/standards/wmts
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26 | *
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27 | * @author Wiktor Niesiobędzki
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28 | *
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29 | */
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30 | public class WMTSLayer extends AbstractCachedTileSourceLayer<WMTSTileSource> implements NativeScaleLayer {
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31 | private static final String PREFERENCE_PREFIX = "imagery.wmts";
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32 |
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33 | /**
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34 | * Registers all setting properties
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35 | */
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36 | static {
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37 | new TileSourceDisplaySettings(PREFERENCE_PREFIX);
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38 | }
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39 |
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40 | private static final String CACHE_REGION_NAME = "WMTS";
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41 |
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42 | /**
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43 | * Creates WMTS layer from ImageryInfo
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44 | * @param info Imagery Info describing the layer
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45 | */
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46 | public WMTSLayer(ImageryInfo info) {
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47 | super(info);
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48 | }
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49 |
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50 | @Override
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51 | protected TileSourceDisplaySettings createDisplaySettings() {
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52 | return new TileSourceDisplaySettings(PREFERENCE_PREFIX);
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53 | }
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54 |
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55 | @Override
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56 | protected WMTSTileSource getTileSource() {
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57 | try {
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58 | if (info.getImageryType() == ImageryType.WMTS && info.getUrl() != null) {
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59 | WMTSTileSource.checkUrl(info.getUrl());
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60 | WMTSTileSource tileSource = new WMTSTileSource(info);
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61 | info.setAttribution(tileSource);
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62 | return tileSource;
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63 | }
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64 | return null;
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65 | } catch (IOException e) {
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66 | Logging.warn(e);
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67 | throw new IllegalArgumentException(e);
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68 | }
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69 | }
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70 |
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71 | @Override
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72 | public int getBestZoom() {
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73 | if (!Main.isDisplayingMapView())
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74 | return 0;
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75 | ScaleList scaleList = getNativeScales();
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76 | if (scaleList == null) {
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77 | return getMaxZoomLvl();
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78 | }
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79 | double displayScale = Main.map.mapView.getScale();
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80 | if (coordinateConverter.requiresReprojection()) {
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81 | displayScale *= Main.getProjection().getMetersPerUnit();
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82 | }
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83 | Scale snap = scaleList.getSnapScale(displayScale, false);
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84 | return Utils.clamp(snap != null ? snap.getIndex() : getMaxZoomLvl(),
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85 | getMinZoomLvl(), getMaxZoomLvl());
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86 | }
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87 |
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88 | @Override
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89 | protected int getMinZoomLvl() {
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90 | return 0;
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91 | }
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92 |
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93 | @Override
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94 | public Collection<String> getNativeProjections() {
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95 | return tileSource.getSupportedProjections();
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96 | }
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97 |
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98 | @Override
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99 | public void projectionChanged(Projection oldValue, Projection newValue) {
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100 | super.projectionChanged(oldValue, newValue);
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101 | tileSource.initProjection(newValue);
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102 | }
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103 |
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104 | @Override
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105 | protected Class<? extends TileLoader> getTileLoaderClass() {
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106 | return WMSCachedTileLoader.class;
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107 | }
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108 |
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109 | @Override
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110 | protected String getCacheName() {
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111 | return CACHE_REGION_NAME;
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112 | }
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113 |
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114 | /**
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115 | * @return cache region for WMTS layer
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116 | */
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117 | public static CacheAccess<String, BufferedImageCacheEntry> getCache() {
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118 | return AbstractCachedTileSourceLayer.getCache(CACHE_REGION_NAME);
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119 | }
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120 |
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121 | @Override
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122 | public ScaleList getNativeScales() {
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123 | return tileSource.getNativeScales();
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124 | }
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125 | }
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