1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.io;
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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.io.File;
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7 | import java.io.IOException;
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8 |
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9 | import org.openstreetmap.josm.actions.ExtensionFileFilter;
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10 | import org.openstreetmap.josm.gui.MapView.LayerChangeListener;
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11 | import org.openstreetmap.josm.gui.layer.Layer;
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12 |
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13 | public abstract class FileExporter implements LayerChangeListener {
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14 |
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15 | public final ExtensionFileFilter filter;
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16 |
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17 | private boolean enabled;
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18 | private boolean canceled;
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19 |
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20 | /**
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21 | * Constructs a new {@code FileExporter}.
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22 | * @param filter The extension file filter
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23 | */
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24 | public FileExporter(ExtensionFileFilter filter) {
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25 | this.filter = filter;
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26 | this.enabled = true;
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27 | }
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28 |
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29 | public boolean acceptFile(File pathname, Layer layer) {
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30 | return filter.acceptName(pathname.getName());
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31 | }
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32 |
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33 | public void exportData(File file, Layer layer) throws IOException {
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34 | throw new IOException(tr("Could not export ''{0}''.", file.getName()));
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35 | }
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36 |
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37 | /**
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38 | * Returns the enabled state of this {@code FileExporter}. When enabled, it is listed and usable in "File->Save" dialogs.
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39 | * @return true if this {@code FileExporter} is enabled
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40 | * @since 5459
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41 | */
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42 | public final boolean isEnabled() {
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43 | return enabled;
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44 | }
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45 |
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46 | /**
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47 | * Sets the enabled state of the {@code FileExporter}. When enabled, it is listed and usable in "File->Save" dialogs.
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48 | * @param enabled true to enable this {@code FileExporter}, false to disable it
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49 | * @since 5459
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50 | */
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51 | public final void setEnabled(boolean enabled) {
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52 | this.enabled = enabled;
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53 | }
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54 |
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55 | @Override
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56 | public void activeLayerChange(Layer oldLayer, Layer newLayer) {
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57 | // To be overriden by subclasses if their enabled state depends of the active layer nature
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58 | }
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59 |
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60 | @Override
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61 | public void layerAdded(Layer newLayer) {
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62 | // To be overriden by subclasses if needed
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63 | }
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64 |
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65 | @Override
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66 | public void layerRemoved(Layer oldLayer) {
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67 | // To be overriden by subclasses if needed
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68 | }
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69 |
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70 | /**
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71 | * Determines if this exporter has been canceled during export.
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72 | * @return true if this {@code FileExporter} has been canceled
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73 | * @since 6815
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74 | */
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75 | public final boolean isCanceled() {
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76 | return canceled;
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77 | }
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78 |
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79 | /**
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80 | * Marks this exporter as canceled.
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81 | * @param canceled true to mark this exporter as canceled, {@code false} otherwise
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82 | * @since 6815
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83 | */
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84 | public final void setCanceled(boolean canceled) {
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85 | this.canceled = canceled;
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86 | }
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87 | }
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