1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.actions;
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3 |
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4 | import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
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5 | import static org.openstreetmap.josm.tools.I18n.tr;
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6 |
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7 | import java.awt.event.ActionEvent;
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8 | import java.io.File;
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9 | import java.io.IOException;
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10 | import java.util.Arrays;
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11 | import java.util.List;
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12 |
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13 | import javax.swing.JFileChooser;
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14 | import javax.swing.JOptionPane;
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15 | import javax.swing.SwingUtilities;
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16 |
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17 | import org.openstreetmap.josm.Main;
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18 | import org.openstreetmap.josm.gui.HelpAwareOptionPane;
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19 | import org.openstreetmap.josm.gui.NavigatableComponent.ViewportData;
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20 | import org.openstreetmap.josm.gui.PleaseWaitRunnable;
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21 | import org.openstreetmap.josm.gui.layer.Layer;
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22 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
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23 | import org.openstreetmap.josm.gui.util.FileFilterAllFiles;
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24 | import org.openstreetmap.josm.io.IllegalDataException;
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25 | import org.openstreetmap.josm.io.session.SessionReader;
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26 |
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27 | public class SessionLoadAction extends DiskAccessAction {
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28 |
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29 | public SessionLoadAction() {
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30 | super(tr("Load Session"), "open", tr("Load a session from file."), null, true, "load-session", true);
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31 | putValue("help", ht("/Action/SessionLoad"));
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32 | }
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33 |
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34 | @Override
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35 | public void actionPerformed(ActionEvent e) {
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36 | ExtensionFileFilter ff = new ExtensionFileFilter("jos,joz", "jos", tr("Session file (*.jos, *.joz)"));
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37 | JFileChooser fc = createAndOpenFileChooser(true, false, tr("Open session"), Arrays.asList(ff, FileFilterAllFiles.getInstance()), ff, JFileChooser.FILES_ONLY, "lastDirectory");
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38 | if (fc == null) return;
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39 | File file = fc.getSelectedFile();
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40 | boolean zip = file.getName().toLowerCase().endsWith(".joz");
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41 | Main.worker.submit(new Loader(file, zip));
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42 | }
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43 |
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44 | public static class Loader extends PleaseWaitRunnable {
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45 |
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46 | private boolean canceled;
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47 | private File file;
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48 | private boolean zip;
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49 | private List<Layer> layers;
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50 | private List<Runnable> postLoadTasks;
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51 | private ViewportData viewport;
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52 |
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53 | public Loader(File file, boolean zip) {
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54 | super(tr("Loading session ''{0}''", file.getName()));
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55 | this.file = file;
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56 | this.zip = zip;
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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 | Thread.dumpStack();
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62 | canceled = true;
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63 | }
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64 |
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65 | @Override
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66 | protected void finish() {
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67 | SwingUtilities.invokeLater(new Runnable() {
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68 | @Override
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69 | public void run() {
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70 | if (canceled) return;
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71 | if (!layers.isEmpty()) {
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72 | Layer firstLayer = layers.iterator().next();
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73 | boolean noMap = Main.map == null;
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74 | if (noMap) {
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75 | Main.main.createMapFrame(firstLayer, viewport);
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76 | }
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77 | for (Layer l : layers) {
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78 | if (canceled) return;
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79 | Main.main.addLayer(l);
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80 | }
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81 | if (noMap) {
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82 | Main.map.setVisible(true);
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83 | }
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84 | }
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85 | for (Runnable task : postLoadTasks) {
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86 | if (canceled) return;
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87 | if (task == null) {
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88 | continue;
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89 | }
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90 | task.run();
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91 | }
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92 | }
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93 | });
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94 | }
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95 |
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96 | @Override
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97 | protected void realRun() {
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98 | try {
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99 | ProgressMonitor monitor = getProgressMonitor();
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100 | SessionReader reader = new SessionReader();
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101 | reader.loadSession(file, zip, monitor);
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102 | layers = reader.getLayers();
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103 | postLoadTasks = reader.getPostLoadTasks();
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104 | viewport = reader.getViewport();
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105 | } catch (IllegalDataException e) {
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106 | e.printStackTrace();
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107 | HelpAwareOptionPane.showMessageDialogInEDT(
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108 | Main.parent,
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109 | tr("<html>Could not load session file ''{0}''.<br>Error is:<br>{1}</html>", file.getName(), e.getMessage()),
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110 | tr("Data Error"),
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111 | JOptionPane.ERROR_MESSAGE,
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112 | null
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113 | );
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114 | cancel();
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115 | } catch (IOException e) {
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116 | e.printStackTrace();
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117 | HelpAwareOptionPane.showMessageDialogInEDT(
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118 | Main.parent,
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119 | tr("<html>Could not load session file ''{0}''.<br>Error is:<br>{1}</html>", file.getName(), e.getMessage()),
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120 | tr("IO Error"),
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121 | JOptionPane.ERROR_MESSAGE,
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122 | null
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123 | );
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124 | cancel();
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125 | } catch (RuntimeException e) {
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126 | cancel();
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127 | throw e;
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128 | } catch (Error e) {
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129 | cancel();
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130 | throw e;
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131 | }
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132 | }
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133 | }
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134 | }
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135 |
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