1 | // License: GPL. Copyright 2007 by Immanuel Scholz and others
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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.awt.event.KeyEvent;
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9 | import java.io.File;
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10 | import java.io.IOException;
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11 | import java.util.ArrayList;
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12 | import java.util.Arrays;
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13 | import java.util.Collections;
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14 | import java.util.List;
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15 |
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16 | import javax.swing.JFileChooser;
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17 | import javax.swing.JOptionPane;
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18 | import javax.swing.filechooser.FileFilter;
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19 |
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20 | import org.openstreetmap.josm.Main;
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21 | import org.openstreetmap.josm.gui.PleaseWaitRunnable;
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22 | import org.openstreetmap.josm.io.AllFormatsImporter;
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23 | import org.openstreetmap.josm.io.FileImporter;
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24 | import org.openstreetmap.josm.io.IllegalDataException;
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25 | import org.openstreetmap.josm.io.OsmTransferException;
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26 | import org.openstreetmap.josm.tools.MultiMap;
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27 | import org.openstreetmap.josm.tools.Shortcut;
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28 | import org.xml.sax.SAXException;
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29 |
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30 | /**
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31 | * Open a file chooser dialog and select an file to import. Then call the gpx-import driver. Finally
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32 | * open an internal frame into the main window with the gpx data shown.
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33 | *
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34 | * @author imi
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35 | */
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36 | public class OpenFileAction extends DiskAccessAction {
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37 |
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38 | /**
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39 | * Create an open action. The name is "Open a file".
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40 | */
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41 | public OpenFileAction() {
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42 | super(tr("Open..."), "open", tr("Open a file."),
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43 | Shortcut.registerShortcut("system:open", tr("File: {0}", tr("Open...")), KeyEvent.VK_O, Shortcut.GROUP_MENU));
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44 | putValue("help", ht("/Action/OpenFile"));
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45 |
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46 | }
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47 |
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48 | public void actionPerformed(ActionEvent e) {
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49 | JFileChooser fc = createAndOpenFileChooser(true, true, null);
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50 | if (fc == null)
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51 | return;
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52 | File[] files = fc.getSelectedFiles();
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53 | OpenFileTask task = new OpenFileTask(Arrays.asList(files), fc.getFileFilter());
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54 | Main.worker.submit(task);
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55 | }
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56 |
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57 | @Override
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58 | protected void updateEnabledState() {
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59 | setEnabled(! Main.applet);
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60 | }
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61 |
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62 | static public class OpenFileTask extends PleaseWaitRunnable {
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63 | private List<File> files;
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64 | private FileFilter fileFilter;
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65 | private boolean cancelled;
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66 |
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67 | public OpenFileTask(List<File> files, FileFilter fileFilter) {
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68 | super(tr("Opening files"), false /* don't ignore exception */);
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69 | this.files = new ArrayList<File>(files);
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70 | this.fileFilter = fileFilter;
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71 | }
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72 | @Override
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73 | protected void cancel() {
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74 | this.cancelled = true;
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75 | }
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76 |
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77 | @Override
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78 | protected void finish() {
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79 | // do nothing
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80 | }
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81 |
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82 | @Override
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83 | protected void realRun() throws SAXException, IOException, OsmTransferException {
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84 | if (files == null || files.isEmpty()) return;
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85 |
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86 | /**
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87 | * Find the importer with the chosen file filter
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88 | */
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89 | FileImporter chosenImporter = null;
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90 | for (FileImporter importer : ExtensionFileFilter.importers) {
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91 | if (fileFilter == importer.filter) {
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92 | chosenImporter = importer;
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93 | }
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94 | }
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95 | /**
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96 | * If the filter wasn't changed in the dialog, chosenImporter is null now.
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97 | * When the filter was expicitly set to AllFormatsImporter, treat this the same.
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98 | */
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99 | if (chosenImporter instanceof AllFormatsImporter) {
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100 | chosenImporter = null;
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101 | }
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102 | getProgressMonitor().setTicks(files.size());
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103 |
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104 | if (chosenImporter != null) { // The importer was expicitely chosen, so use it.
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105 | //System.err.println("Importer: " +chosenImporter.getClass().getName());
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106 | for (File f : files) {
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107 | if (!chosenImporter.acceptFile(f)) {
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108 | if (f.isDirectory()) {
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109 | JOptionPane.showMessageDialog(
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110 | Main.parent,
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111 | tr("<html>Cannot open directory.<br>Please select a file!"),
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112 | tr("Open file"),
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113 | JOptionPane.INFORMATION_MESSAGE
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114 | );
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115 | return;
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116 | } else
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117 | throw new IllegalStateException();
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118 | }
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119 | }
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120 | importData(chosenImporter, files);
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121 | }
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122 | else { // find apropriate importer
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123 | MultiMap<FileImporter, File> map = new MultiMap<FileImporter, File>();
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124 | while (! files.isEmpty()) {
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125 | File f = files.get(0);
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126 | for (FileImporter importer : ExtensionFileFilter.importers) {
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127 | if (importer.acceptFile(f)) {
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128 | map.add(importer, f);
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129 | files.remove(f);
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130 | }
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131 | }
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132 | if (files.contains(f))
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133 | throw new RuntimeException(); // no importer found
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134 | }
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135 | List<FileImporter> ims = new ArrayList<FileImporter>(map.keySet());
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136 | Collections.sort(ims);
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137 | Collections.reverse(ims);
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138 | for (FileImporter importer : ims) {
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139 | //System.err.println("Using "+importer.getClass().getName());
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140 | List<File> files = map.get(importer);
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141 | //System.err.println("for files: "+files);
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142 | importData(importer, files);
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143 | }
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144 | }
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145 | }
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146 |
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147 | public void importData(FileImporter importer, List<File> files) {
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148 | if (importer.isBatchImporter()) {
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149 | if (cancelled) return;
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150 | String msg;
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151 | if (files.size() == 1) {
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152 | msg = tr("Opening 1 file...");
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153 | } else {
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154 | msg = tr("Opening {0} files...", files.size());
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155 | }
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156 | getProgressMonitor().indeterminateSubTask(msg);
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157 | importer.importDataHandleExceptions(files);
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158 | getProgressMonitor().worked(files.size());
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159 | } else {
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160 | for (File f : files) {
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161 | if (cancelled) return;
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162 | getProgressMonitor().indeterminateSubTask(tr("Opening file ''{0}'' ...", f.getAbsolutePath()));
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163 | importer.importDataHandleExceptions(f);
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164 | getProgressMonitor().worked(1);
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165 | }
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166 | }
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167 | }
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168 | }
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169 | }
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