コード例 #1
0
 public SaveAndUploadTask(SaveLayersModel model, ProgressMonitor monitor) {
   this.model = model;
   this.monitor = monitor;
   this.worker =
       Executors.newSingleThreadExecutor(
           Utils.newThreadFactory(getClass() + "-%d", Thread.NORM_PRIORITY));
 }
コード例 #2
0
ファイル: GeoImageLayer.java プロジェクト: codesman/josm
/** Layer displaying geottaged pictures. */
public class GeoImageLayer extends Layer implements PropertyChangeListener, JumpToMarkerLayer {

  private static List<Action> menuAdditions = new LinkedList<>();

  private static volatile List<MapMode> supportedMapModes;

  List<ImageEntry> data;
  GpxLayer gpxLayer;

  private final Icon icon = ImageProvider.get("dialogs/geoimage/photo-marker");
  private final Icon selectedIcon = ImageProvider.get("dialogs/geoimage/photo-marker-selected");

  private int currentPhoto = -1;

  boolean useThumbs;
  private final ExecutorService thumbsLoaderExecutor =
      Executors.newSingleThreadExecutor(
          Utils.newThreadFactory("thumbnail-loader-%d", Thread.MIN_PRIORITY));
  private ThumbsLoader thumbsloader;
  private boolean thumbsLoaderRunning;
  volatile boolean thumbsLoaded;
  private BufferedImage offscreenBuffer;
  boolean updateOffscreenBuffer = true;

  private MouseAdapter mouseAdapter;
  private MapModeChangeListener mapModeListener;

  /**
   * Constructs a new {@code GeoImageLayer}.
   *
   * @param data The list of images to display
   * @param gpxLayer The associated GPX layer
   */
  public GeoImageLayer(final List<ImageEntry> data, GpxLayer gpxLayer) {
    this(data, gpxLayer, null, false);
  }

  /**
   * Constructs a new {@code GeoImageLayer}.
   *
   * @param data The list of images to display
   * @param gpxLayer The associated GPX layer
   * @param name Layer name
   * @since 6392
   */
  public GeoImageLayer(final List<ImageEntry> data, GpxLayer gpxLayer, final String name) {
    this(data, gpxLayer, name, false);
  }

  /**
   * Constructs a new {@code GeoImageLayer}.
   *
   * @param data The list of images to display
   * @param gpxLayer The associated GPX layer
   * @param useThumbs Thumbnail display flag
   * @since 6392
   */
  public GeoImageLayer(final List<ImageEntry> data, GpxLayer gpxLayer, boolean useThumbs) {
    this(data, gpxLayer, null, useThumbs);
  }

  /**
   * Constructs a new {@code GeoImageLayer}.
   *
   * @param data The list of images to display
   * @param gpxLayer The associated GPX layer
   * @param name Layer name
   * @param useThumbs Thumbnail display flag
   * @since 6392
   */
  public GeoImageLayer(
      final List<ImageEntry> data, GpxLayer gpxLayer, final String name, boolean useThumbs) {
    super(name != null ? name : tr("Geotagged Images"));
    if (data != null) {
      Collections.sort(data);
    }
    this.data = data;
    this.gpxLayer = gpxLayer;
    this.useThumbs = useThumbs;
  }

  /**
   * Loads a set of images, while displaying a dialog that indicates what the plugin is currently
   * doing. In facts, this object is instantiated with a list of files. These files may be JPEG
   * files or directories. In case of directories, they are scanned to find all the images they
   * contain. Then all the images that have be found are loaded as ImageEntry instances.
   */
  static final class Loader extends PleaseWaitRunnable {

    private boolean canceled;
    private GeoImageLayer layer;
    private final Collection<File> selection;
    private final Set<String> loadedDirectories = new HashSet<>();
    private final Set<String> errorMessages;
    private final GpxLayer gpxLayer;

    Loader(Collection<File> selection, GpxLayer gpxLayer) {
      super(tr("Extracting GPS locations from EXIF"));
      this.selection = selection;
      this.gpxLayer = gpxLayer;
      errorMessages = new LinkedHashSet<>();
    }

    protected void rememberError(String message) {
      this.errorMessages.add(message);
    }

    @Override
    protected void realRun() throws IOException {

      progressMonitor.subTask(tr("Starting directory scan"));
      Collection<File> files = new ArrayList<>();
      try {
        addRecursiveFiles(files, selection);
      } catch (IllegalStateException e) {
        rememberError(e.getMessage());
      }

      if (canceled) return;
      progressMonitor.subTask(tr("Read photos..."));
      progressMonitor.setTicksCount(files.size());

      progressMonitor.subTask(tr("Read photos..."));
      progressMonitor.setTicksCount(files.size());

      // read the image files
      List<ImageEntry> entries = new ArrayList<>(files.size());

      for (File f : files) {

        if (canceled) {
          break;
        }

        progressMonitor.subTask(tr("Reading {0}...", f.getName()));
        progressMonitor.worked(1);

        ImageEntry e = new ImageEntry(f);
        e.extractExif();
        entries.add(e);
      }
      layer = new GeoImageLayer(entries, gpxLayer);
      files.clear();
    }

    private void addRecursiveFiles(Collection<File> files, Collection<File> sel) {
      boolean nullFile = false;

      for (File f : sel) {

        if (canceled) {
          break;
        }

        if (f == null) {
          nullFile = true;

        } else if (f.isDirectory()) {
          String canonical = null;
          try {
            canonical = f.getCanonicalPath();
          } catch (IOException e) {
            Main.error(e);
            rememberError(
                tr("Unable to get canonical path for directory {0}\n", f.getAbsolutePath()));
          }

          if (canonical == null || loadedDirectories.contains(canonical)) {
            continue;
          } else {
            loadedDirectories.add(canonical);
          }

          File[] children = f.listFiles(JpgImporter.FILE_FILTER_WITH_FOLDERS);
          if (children != null) {
            progressMonitor.subTask(tr("Scanning directory {0}", f.getPath()));
            addRecursiveFiles(files, Arrays.asList(children));
          } else {
            rememberError(tr("Error while getting files from directory {0}\n", f.getPath()));
          }

        } else {
          files.add(f);
        }
      }

      if (nullFile) {
        throw new IllegalStateException(tr("One of the selected files was null"));
      }
    }

    protected String formatErrorMessages() {
      StringBuilder sb = new StringBuilder();
      sb.append("<html>");
      if (errorMessages.size() == 1) {
        sb.append(errorMessages.iterator().next());
      } else {
        sb.append(Utils.joinAsHtmlUnorderedList(errorMessages));
      }
      sb.append("</html>");
      return sb.toString();
    }

    @Override
    protected void finish() {
      if (!errorMessages.isEmpty()) {
        JOptionPane.showMessageDialog(
            Main.parent, formatErrorMessages(), tr("Error"), JOptionPane.ERROR_MESSAGE);
      }
      if (layer != null) {
        Main.main.addLayer(layer);

        if (!canceled && layer.data != null && !layer.data.isEmpty()) {
          boolean noGeotagFound = true;
          for (ImageEntry e : layer.data) {
            if (e.getPos() != null) {
              noGeotagFound = false;
            }
          }
          if (noGeotagFound) {
            new CorrelateGpxWithImages(layer).actionPerformed(null);
          }
        }
      }
    }

    @Override
    protected void cancel() {
      canceled = true;
    }
  }

  public static void create(Collection<File> files, GpxLayer gpxLayer) {
    Main.worker.execute(new Loader(files, gpxLayer));
  }

  @Override
  public Icon getIcon() {
    return ImageProvider.get("dialogs/geoimage");
  }

  public static void registerMenuAddition(Action addition) {
    menuAdditions.add(addition);
  }

  @Override
  public Action[] getMenuEntries() {

    List<Action> entries = new ArrayList<>();
    entries.add(LayerListDialog.getInstance().createShowHideLayerAction());
    entries.add(LayerListDialog.getInstance().createDeleteLayerAction());
    entries.add(LayerListDialog.getInstance().createMergeLayerAction(this));
    entries.add(new RenameLayerAction(null, this));
    entries.add(SeparatorLayerAction.INSTANCE);
    entries.add(new CorrelateGpxWithImages(this));
    entries.add(new ShowThumbnailAction(this));
    if (!menuAdditions.isEmpty()) {
      entries.add(SeparatorLayerAction.INSTANCE);
      entries.addAll(menuAdditions);
    }
    entries.add(SeparatorLayerAction.INSTANCE);
    entries.add(new JumpToNextMarker(this));
    entries.add(new JumpToPreviousMarker(this));
    entries.add(SeparatorLayerAction.INSTANCE);
    entries.add(new LayerListPopup.InfoAction(this));

    return entries.toArray(new Action[entries.size()]);
  }

  /**
   * Prepare the string that is displayed if layer information is requested.
   *
   * @return String with layer information
   */
  private String infoText() {
    int tagged = 0;
    int newdata = 0;
    int n = 0;
    if (data != null) {
      n = data.size();
      for (ImageEntry e : data) {
        if (e.getPos() != null) {
          tagged++;
        }
        if (e.hasNewGpsData()) {
          newdata++;
        }
      }
    }
    return "<html>"
        + trn("{0} image loaded.", "{0} images loaded.", n, n)
        + ' '
        + trn("{0} was found to be GPS tagged.", "{0} were found to be GPS tagged.", tagged, tagged)
        + (newdata > 0
            ? "<br>"
                + trn("{0} has updated GPS data.", "{0} have updated GPS data.", newdata, newdata)
            : "")
        + "</html>";
  }

  @Override
  public Object getInfoComponent() {
    return infoText();
  }

  @Override
  public String getToolTipText() {
    return infoText();
  }

  @Override
  public boolean isMergable(Layer other) {
    return other instanceof GeoImageLayer;
  }

  @Override
  public void mergeFrom(Layer from) {
    GeoImageLayer l = (GeoImageLayer) from;

    // Stop to load thumbnails on both layers.  Thumbnail loading will continue the next time
    // the layer is painted.
    stopLoadThumbs();
    l.stopLoadThumbs();

    final ImageEntry selected =
        l.data != null && l.currentPhoto >= 0 ? l.data.get(l.currentPhoto) : null;

    if (l.data != null) {
      data.addAll(l.data);
    }
    Collections.sort(data);

    // Supress the double photos.
    if (data.size() > 1) {
      ImageEntry cur;
      ImageEntry prev = data.get(data.size() - 1);
      for (int i = data.size() - 2; i >= 0; i--) {
        cur = data.get(i);
        if (cur.getFile().equals(prev.getFile())) {
          data.remove(i);
        } else {
          prev = cur;
        }
      }
    }

    if (selected != null && !data.isEmpty()) {
      GuiHelper.runInEDTAndWait(
          new Runnable() {
            @Override
            public void run() {
              for (int i = 0; i < data.size(); i++) {
                if (selected.equals(data.get(i))) {
                  currentPhoto = i;
                  ImageViewerDialog.showImage(GeoImageLayer.this, data.get(i));
                  break;
                }
              }
            }
          });
    }

    setName(l.getName());
    thumbsLoaded &= l.thumbsLoaded;
  }

  private static Dimension scaledDimension(Image thumb) {
    final double d = Main.map.mapView.getDist100Pixel();
    final double size = 10 /*meter*/; /* size of the photo on the map */
    double s = size * 100 /*px*/ / d;

    final double sMin = ThumbsLoader.minSize;
    final double sMax = ThumbsLoader.maxSize;

    if (s < sMin) {
      s = sMin;
    }
    if (s > sMax) {
      s = sMax;
    }
    final double f = s / sMax; /* scale factor */

    if (thumb == null) return null;

    return new Dimension(
        (int) Math.round(f * thumb.getWidth(null)), (int) Math.round(f * thumb.getHeight(null)));
  }

  @Override
  public void paint(Graphics2D g, MapView mv, Bounds bounds) {
    int width = mv.getWidth();
    int height = mv.getHeight();
    Rectangle clip = g.getClipBounds();
    if (useThumbs) {
      if (!thumbsLoaded) {
        startLoadThumbs();
      }

      if (null == offscreenBuffer
          || offscreenBuffer.getWidth() != width // reuse the old buffer if possible
          || offscreenBuffer.getHeight() != height) {
        offscreenBuffer = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
        updateOffscreenBuffer = true;
      }

      if (updateOffscreenBuffer) {
        Graphics2D tempG = offscreenBuffer.createGraphics();
        tempG.setColor(new Color(0, 0, 0, 0));
        Composite saveComp = tempG.getComposite();
        tempG.setComposite(AlphaComposite.Clear); // remove the old images
        tempG.fillRect(0, 0, width, height);
        tempG.setComposite(saveComp);

        if (data != null) {
          for (ImageEntry e : data) {
            if (e.getPos() == null) {
              continue;
            }
            Point p = mv.getPoint(e.getPos());
            if (e.hasThumbnail()) {
              Dimension d = scaledDimension(e.getThumbnail());
              Rectangle target =
                  new Rectangle(p.x - d.width / 2, p.y - d.height / 2, d.width, d.height);
              if (clip.intersects(target)) {
                tempG.drawImage(
                    e.getThumbnail(), target.x, target.y, target.width, target.height, null);
              }
            } else { // thumbnail not loaded yet
              icon.paintIcon(
                  mv, tempG, p.x - icon.getIconWidth() / 2, p.y - icon.getIconHeight() / 2);
            }
          }
        }
        updateOffscreenBuffer = false;
      }
      g.drawImage(offscreenBuffer, 0, 0, null);
    } else if (data != null) {
      for (ImageEntry e : data) {
        if (e.getPos() == null) {
          continue;
        }
        Point p = mv.getPoint(e.getPos());
        icon.paintIcon(mv, g, p.x - icon.getIconWidth() / 2, p.y - icon.getIconHeight() / 2);
      }
    }

    if (currentPhoto >= 0 && currentPhoto < data.size()) {
      ImageEntry e = data.get(currentPhoto);

      if (e.getPos() != null) {
        Point p = mv.getPoint(e.getPos());

        int imgWidth;
        int imgHeight;
        if (useThumbs && e.hasThumbnail()) {
          Dimension d = scaledDimension(e.getThumbnail());
          imgWidth = d.width;
          imgHeight = d.height;
        } else {
          imgWidth = selectedIcon.getIconWidth();
          imgHeight = selectedIcon.getIconHeight();
        }

        if (e.getExifImgDir() != null) {
          // Multiplier must be larger than sqrt(2)/2=0.71.
          double arrowlength = Math.max(25, Math.max(imgWidth, imgHeight) * 0.85);
          double arrowwidth = arrowlength / 1.4;

          double dir = e.getExifImgDir();
          // Rotate 90 degrees CCW
          double headdir = (dir < 90) ? dir + 270 : dir - 90;
          double leftdir = (headdir < 90) ? headdir + 270 : headdir - 90;
          double rightdir = (headdir > 270) ? headdir - 270 : headdir + 90;

          double ptx = p.x + Math.cos(Math.toRadians(headdir)) * arrowlength;
          double pty = p.y + Math.sin(Math.toRadians(headdir)) * arrowlength;

          double ltx = p.x + Math.cos(Math.toRadians(leftdir)) * arrowwidth / 2;
          double lty = p.y + Math.sin(Math.toRadians(leftdir)) * arrowwidth / 2;

          double rtx = p.x + Math.cos(Math.toRadians(rightdir)) * arrowwidth / 2;
          double rty = p.y + Math.sin(Math.toRadians(rightdir)) * arrowwidth / 2;

          g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
          g.setColor(new Color(255, 255, 255, 192));
          int[] xar = {(int) ltx, (int) ptx, (int) rtx, (int) ltx};
          int[] yar = {(int) lty, (int) pty, (int) rty, (int) lty};
          g.fillPolygon(xar, yar, 4);
          g.setColor(Color.black);
          g.setStroke(new BasicStroke(1.2f));
          g.drawPolyline(xar, yar, 3);
        }

        if (useThumbs && e.hasThumbnail()) {
          g.setColor(new Color(128, 0, 0, 122));
          g.fillRect(p.x - imgWidth / 2, p.y - imgHeight / 2, imgWidth, imgHeight);
        } else {
          selectedIcon.paintIcon(mv, g, p.x - imgWidth / 2, p.y - imgHeight / 2);
        }
      }
    }
  }

  @Override
  public void visitBoundingBox(BoundingXYVisitor v) {
    for (ImageEntry e : data) {
      v.visit(e.getPos());
    }
  }

  /** Shows next photo. */
  public void showNextPhoto() {
    if (data != null && !data.isEmpty()) {
      currentPhoto++;
      if (currentPhoto >= data.size()) {
        currentPhoto = data.size() - 1;
      }
      ImageViewerDialog.showImage(this, data.get(currentPhoto));
    } else {
      currentPhoto = -1;
    }
    Main.map.repaint();
  }

  /** Shows previous photo. */
  public void showPreviousPhoto() {
    if (data != null && !data.isEmpty()) {
      currentPhoto--;
      if (currentPhoto < 0) {
        currentPhoto = 0;
      }
      ImageViewerDialog.showImage(this, data.get(currentPhoto));
    } else {
      currentPhoto = -1;
    }
    Main.map.repaint();
  }

  /** Shows first photo. */
  public void showFirstPhoto() {
    if (data != null && !data.isEmpty()) {
      currentPhoto = 0;
      ImageViewerDialog.showImage(this, data.get(currentPhoto));
    } else {
      currentPhoto = -1;
    }
    Main.map.repaint();
  }

  /** Shows last photo. */
  public void showLastPhoto() {
    if (data != null && !data.isEmpty()) {
      currentPhoto = data.size() - 1;
      ImageViewerDialog.showImage(this, data.get(currentPhoto));
    } else {
      currentPhoto = -1;
    }
    Main.map.repaint();
  }

  public void checkPreviousNextButtons() {
    ImageViewerDialog.setNextEnabled(data != null && currentPhoto < data.size() - 1);
    ImageViewerDialog.setPreviousEnabled(currentPhoto > 0);
  }

  public void removeCurrentPhoto() {
    if (data != null && !data.isEmpty() && currentPhoto >= 0 && currentPhoto < data.size()) {
      data.remove(currentPhoto);
      if (currentPhoto >= data.size()) {
        currentPhoto = data.size() - 1;
      }
      if (currentPhoto >= 0) {
        ImageViewerDialog.showImage(this, data.get(currentPhoto));
      } else {
        ImageViewerDialog.showImage(this, null);
      }
      updateOffscreenBuffer = true;
      Main.map.repaint();
    }
  }

  public void removeCurrentPhotoFromDisk() {
    ImageEntry toDelete;
    if (data != null && !data.isEmpty() && currentPhoto >= 0 && currentPhoto < data.size()) {
      toDelete = data.get(currentPhoto);

      int result =
          new ExtendedDialog(
                  Main.parent,
                  tr("Delete image file from disk"),
                  new String[] {tr("Cancel"), tr("Delete")})
              .setButtonIcons(new String[] {"cancel", "dialogs/delete"})
              .setContent(
                  new JLabel(
                      tr(
                          "<html><h3>Delete the file {0} from disk?<p>The image file will be permanently lost!</h3></html>",
                          toDelete.getFile().getName()),
                      ImageProvider.get("dialogs/geoimage/deletefromdisk"),
                      SwingConstants.LEFT))
              .toggleEnable("geoimage.deleteimagefromdisk")
              .setCancelButton(1)
              .setDefaultButton(2)
              .showDialog()
              .getValue();

      if (result == 2) {
        data.remove(currentPhoto);
        if (currentPhoto >= data.size()) {
          currentPhoto = data.size() - 1;
        }
        if (currentPhoto >= 0) {
          ImageViewerDialog.showImage(this, data.get(currentPhoto));
        } else {
          ImageViewerDialog.showImage(this, null);
        }

        if (Utils.deleteFile(toDelete.getFile())) {
          Main.info("File " + toDelete.getFile() + " deleted. ");
        } else {
          JOptionPane.showMessageDialog(
              Main.parent,
              tr("Image file could not be deleted."),
              tr("Error"),
              JOptionPane.ERROR_MESSAGE);
        }

        updateOffscreenBuffer = true;
        Main.map.repaint();
      }
    }
  }

  public void copyCurrentPhotoPath() {
    if (data != null && !data.isEmpty() && currentPhoto >= 0 && currentPhoto < data.size()) {
      Utils.copyToClipboard(data.get(currentPhoto).getFile().toString());
    }
  }

  /**
   * Removes a photo from the list of images by index.
   *
   * @param idx Image index
   * @since 6392
   */
  public void removePhotoByIdx(int idx) {
    if (idx >= 0 && data != null && idx < data.size()) {
      data.remove(idx);
    }
  }

  /**
   * Returns the image that matches the position of the mouse event.
   *
   * @param evt Mouse event
   * @return Image at mouse position, or {@code null} if there is no image at the mouse position
   * @since 6392
   */
  public ImageEntry getPhotoUnderMouse(MouseEvent evt) {
    if (data != null) {
      for (int idx = data.size() - 1; idx >= 0; --idx) {
        ImageEntry img = data.get(idx);
        if (img.getPos() == null) {
          continue;
        }
        Point p = Main.map.mapView.getPoint(img.getPos());
        Rectangle r;
        if (useThumbs && img.hasThumbnail()) {
          Dimension d = scaledDimension(img.getThumbnail());
          r = new Rectangle(p.x - d.width / 2, p.y - d.height / 2, d.width, d.height);
        } else {
          r =
              new Rectangle(
                  p.x - icon.getIconWidth() / 2,
                  p.y - icon.getIconHeight() / 2,
                  icon.getIconWidth(),
                  icon.getIconHeight());
        }
        if (r.contains(evt.getPoint())) {
          return img;
        }
      }
    }
    return null;
  }

  /**
   * Clears the currentPhoto, i.e. remove select marker, and optionally repaint.
   *
   * @param repaint Repaint flag
   * @since 6392
   */
  public void clearCurrentPhoto(boolean repaint) {
    currentPhoto = -1;
    if (repaint) {
      updateBufferAndRepaint();
    }
  }

  /**
   * Clears the currentPhoto of the other GeoImageLayer's. Otherwise there could be multiple
   * selected photos.
   */
  private void clearOtherCurrentPhotos() {
    for (GeoImageLayer layer : Main.map.mapView.getLayersOfType(GeoImageLayer.class)) {
      if (layer != this) {
        layer.clearCurrentPhoto(false);
      }
    }
  }

  /**
   * Registers a map mode for which the functionality of this layer should be available.
   *
   * @param mapMode Map mode to be registered
   * @since 6392
   */
  public static void registerSupportedMapMode(MapMode mapMode) {
    if (supportedMapModes == null) {
      supportedMapModes = new ArrayList<>();
    }
    supportedMapModes.add(mapMode);
  }

  /**
   * Determines if the functionality of this layer is available in the specified map mode. {@link
   * SelectAction} and {@link LassoModeAction} are supported by default, other map modes can be
   * registered.
   *
   * @param mapMode Map mode to be checked
   * @return {@code true} if the map mode is supported, {@code false} otherwise
   */
  private static boolean isSupportedMapMode(MapMode mapMode) {
    if (mapMode instanceof SelectAction || mapMode instanceof LassoModeAction) {
      return true;
    }
    if (supportedMapModes != null) {
      for (MapMode supmmode : supportedMapModes) {
        if (mapMode == supmmode) {
          return true;
        }
      }
    }
    return false;
  }

  @Override
  public void hookUpMapView() {
    mouseAdapter =
        new MouseAdapter() {
          private boolean isMapModeOk() {
            return Main.map.mapMode == null || isSupportedMapMode(Main.map.mapMode);
          }

          @Override
          public void mousePressed(MouseEvent e) {
            if (e.getButton() != MouseEvent.BUTTON1) return;
            if (isVisible() && isMapModeOk()) {
              Main.map.mapView.repaint();
            }
          }

          @Override
          public void mouseReleased(MouseEvent ev) {
            if (ev.getButton() != MouseEvent.BUTTON1) return;
            if (data == null || !isVisible() || !isMapModeOk()) return;

            for (int i = data.size() - 1; i >= 0; --i) {
              ImageEntry e = data.get(i);
              if (e.getPos() == null) {
                continue;
              }
              Point p = Main.map.mapView.getPoint(e.getPos());
              Rectangle r;
              if (useThumbs && e.hasThumbnail()) {
                Dimension d = scaledDimension(e.getThumbnail());
                r = new Rectangle(p.x - d.width / 2, p.y - d.height / 2, d.width, d.height);
              } else {
                r =
                    new Rectangle(
                        p.x - icon.getIconWidth() / 2,
                        p.y - icon.getIconHeight() / 2,
                        icon.getIconWidth(),
                        icon.getIconHeight());
              }
              if (r.contains(ev.getPoint())) {
                clearOtherCurrentPhotos();
                currentPhoto = i;
                ImageViewerDialog.showImage(GeoImageLayer.this, e);
                Main.map.repaint();
                break;
              }
            }
          }
        };

    mapModeListener =
        new MapModeChangeListener() {
          @Override
          public void mapModeChange(MapMode oldMapMode, MapMode newMapMode) {
            if (newMapMode == null || isSupportedMapMode(newMapMode)) {
              Main.map.mapView.addMouseListener(mouseAdapter);
            } else {
              Main.map.mapView.removeMouseListener(mouseAdapter);
            }
          }
        };

    MapFrame.addMapModeChangeListener(mapModeListener);
    mapModeListener.mapModeChange(null, Main.map.mapMode);

    MapView.addLayerChangeListener(
        new LayerChangeListener() {
          @Override
          public void activeLayerChange(Layer oldLayer, Layer newLayer) {
            if (newLayer == GeoImageLayer.this) {
              // only in select mode it is possible to click the images
              Main.map.selectSelectTool(false);
            }
          }

          @Override
          public void layerAdded(Layer newLayer) {}

          @Override
          public void layerRemoved(Layer oldLayer) {
            if (oldLayer == GeoImageLayer.this) {
              stopLoadThumbs();
              Main.map.mapView.removeMouseListener(mouseAdapter);
              MapFrame.removeMapModeChangeListener(mapModeListener);
              currentPhoto = -1;
              if (data != null) {
                data.clear();
              }
              data = null;
              // stop listening to layer change events
              MapView.removeLayerChangeListener(this);
            }
          }
        });

    Main.map.mapView.addPropertyChangeListener(this);
    if (Main.map.getToggleDialog(ImageViewerDialog.class) == null) {
      ImageViewerDialog.newInstance();
      Main.map.addToggleDialog(ImageViewerDialog.getInstance());
    }
  }

  @Override
  public void propertyChange(PropertyChangeEvent evt) {
    if (NavigatableComponent.PROPNAME_CENTER.equals(evt.getPropertyName())
        || NavigatableComponent.PROPNAME_SCALE.equals(evt.getPropertyName())) {
      updateOffscreenBuffer = true;
    }
  }

  /** Start to load thumbnails. */
  public synchronized void startLoadThumbs() {
    if (useThumbs && !thumbsLoaded && !thumbsLoaderRunning) {
      stopLoadThumbs();
      thumbsloader = new ThumbsLoader(this);
      thumbsLoaderExecutor.submit(thumbsloader);
      thumbsLoaderRunning = true;
    }
  }

  /**
   * Stop to load thumbnails.
   *
   * <p>Can be called at any time to make sure that the thumbnail loader is stopped.
   */
  public synchronized void stopLoadThumbs() {
    if (thumbsloader != null) {
      thumbsloader.stop = true;
    }
    thumbsLoaderRunning = false;
  }

  /**
   * Called to signal that the loading of thumbnails has finished.
   *
   * <p>Usually called from {@link ThumbsLoader} in another thread.
   */
  public void thumbsLoaded() {
    thumbsLoaded = true;
  }

  public void updateBufferAndRepaint() {
    updateOffscreenBuffer = true;
    Main.map.mapView.repaint();
  }

  /**
   * Get list of images in layer.
   *
   * @return List of images in layer
   */
  public List<ImageEntry> getImages() {
    if (data == null) {
      return Collections.emptyList();
    }
    List<ImageEntry> copy = new ArrayList<>(data.size());
    for (ImageEntry ie : data) {
      copy.add(ie);
    }
    return copy;
  }

  /**
   * Returns the associated GPX layer.
   *
   * @return The associated GPX layer
   */
  public GpxLayer getGpxLayer() {
    return gpxLayer;
  }

  @Override
  public void jumpToNextMarker() {
    showNextPhoto();
  }

  @Override
  public void jumpToPreviousMarker() {
    showPreviousPhoto();
  }

  /**
   * Returns the current thumbnail display status. {@code true}: thumbnails are displayed, {@code
   * false}: an icon is displayed instead of thumbnails.
   *
   * @return Current thumbnail display status
   * @since 6392
   */
  public boolean isUseThumbs() {
    return useThumbs;
  }

  /**
   * Enables or disables the display of thumbnails. Does not update the display.
   *
   * @param useThumbs New thumbnail display status
   * @since 6392
   */
  public void setUseThumbs(boolean useThumbs) {
    this.useThumbs = useThumbs;
    if (useThumbs && !thumbsLoaded) {
      startLoadThumbs();
    } else if (!useThumbs) {
      stopLoadThumbs();
    }
  }
}