1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.layer.geoimage;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.awt.event.ActionEvent;
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7 | import java.io.IOException;
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8 | import java.util.ArrayList;
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9 | import java.util.List;
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10 |
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11 | import javax.xml.parsers.ParserConfigurationException;
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12 | import javax.xml.xpath.XPathExpressionException;
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13 |
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14 | import org.openstreetmap.josm.actions.JosmAction;
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15 | import org.openstreetmap.josm.data.Bounds;
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16 | import org.openstreetmap.josm.gui.MainApplication;
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17 | import org.openstreetmap.josm.gui.PleaseWaitRunnable;
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18 | import org.openstreetmap.josm.io.OsmTransferException;
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19 | import org.openstreetmap.josm.tools.Logging;
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20 | import org.openstreetmap.josm.tools.Mediawiki;
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21 | import org.xml.sax.SAXException;
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22 |
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23 | /**
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24 | * Loads geocoded images from <a href="https://commons.wikimedia.org/">Wikimedia Commons</a> for the given bounding box.
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25 | */
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26 | public class WikimediaCommonsLoader extends PleaseWaitRunnable {
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27 | protected String apiUrl = "https://commons.wikimedia.org/w/api.php";
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28 | protected GeoImageLayer layer;
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29 | private final Bounds bounds;
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30 |
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31 | /**
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32 | * Constructs a new {@code WikimediaCommonsLoader}
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33 | * @param bounds The bounds to load
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34 | */
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35 | public WikimediaCommonsLoader(Bounds bounds) {
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36 | super(tr("Load images from Wikimedia Commons"));
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37 | this.bounds = bounds;
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38 | }
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39 |
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40 | @Override
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41 | protected void realRun() throws SAXException, IOException, OsmTransferException {
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42 | List<ImageEntry> imageEntries = new ArrayList<>();
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43 | try {
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44 | new Mediawiki(apiUrl).searchGeoImages(bounds, (title, latLon) -> imageEntries.add(new WikimediaCommonsEntry(title, latLon)));
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45 | } catch (ParserConfigurationException | XPathExpressionException e) {
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46 | throw new IllegalStateException(e);
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47 | }
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48 | Logging.info("Loaded {0} images from Wikimedia Commons", imageEntries.size());
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49 | layer = new WikimediaCommonsLayer(imageEntries);
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50 | }
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51 |
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52 | @Override
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53 | protected void finish() {
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54 | if (layer != null) {
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55 | MainApplication.getLayerManager().addLayer(layer);
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56 | }
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57 | }
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58 |
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59 | @Override
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60 | protected void cancel() {
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61 | // do nothing
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62 | }
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63 |
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64 | /**
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65 | * Load images from Wikimedia Commons
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66 | * @since 18021
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67 | */
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68 | public static class WikimediaCommonsLoadImagesAction extends JosmAction {
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69 | /**
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70 | * Constructs a new {@code WikimediaCommonsLoadImagesAction}
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71 | */
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72 | public WikimediaCommonsLoadImagesAction() {
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73 | super(tr("Load images from Wikimedia Commons"), "wikimedia_commons", null, null, false);
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74 | }
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75 |
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76 | @Override
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77 | public void actionPerformed(ActionEvent e) {
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78 | Bounds bounds = MainApplication.getMap().mapView.getRealBounds();
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79 | MainApplication.worker.execute(new WikimediaCommonsLoader(bounds));
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80 | }
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81 |
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82 | @Override
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83 | protected void updateEnabledState() {
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84 | setEnabled(MainApplication.isDisplayingMapView());
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85 | }
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86 | }
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87 | }
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