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.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.File;
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8 | import java.io.IOException;
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9 | import java.util.Collection;
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10 | import java.util.LinkedList;
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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.filechooser.FileFilter;
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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.ExtendedDialog;
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19 | import org.openstreetmap.josm.gui.layer.Layer;
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20 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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21 | import org.openstreetmap.josm.io.FileExporter;
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22 | import org.openstreetmap.josm.tools.Shortcut;
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23 |
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24 | public abstract class SaveActionBase extends DiskAccessAction {
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25 | private File file;
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26 |
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27 | public SaveActionBase(String name, String iconName, String tooltip, Shortcut shortcut) {
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28 | super(name, iconName, tooltip, shortcut);
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29 | }
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30 |
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31 | @Override
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32 | public void actionPerformed(ActionEvent e) {
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33 | if (!isEnabled())
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34 | return;
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35 | boolean saved = doSave();
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36 | if (saved) {
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37 | addToFileOpenHistory();
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38 | }
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39 | }
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40 |
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41 | public boolean doSave() {
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42 | if (Main.isDisplayingMapView()) {
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43 | Layer layer = Main.map.mapView.getActiveLayer();
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44 | if (layer != null && layer.isSavable()) {
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45 | return doSave(layer);
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46 | }
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47 | }
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48 | return false;
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49 | }
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50 |
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51 | public boolean doSave(Layer layer) {
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52 | if(!layer.checkSaveConditions())
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53 | return false;
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54 | file = getFile(layer);
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55 | return doInternalSave(layer, file);
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56 | }
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57 |
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58 | public static boolean doSave(Layer layer, File file) {
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59 | if(!layer.checkSaveConditions())
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60 | return false;
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61 | return doInternalSave(layer, file);
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62 | }
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63 |
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64 | private static boolean doInternalSave(Layer layer, File file) {
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65 | if (file == null)
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66 | return false;
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67 |
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68 | try {
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69 | boolean exported = false;
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70 | for (FileExporter exporter : ExtensionFileFilter.exporters) {
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71 | if (exporter.acceptFile(file, layer)) {
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72 | exporter.exportData(file, layer);
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73 | exported = true;
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74 | break;
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75 | }
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76 | }
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77 | if (!exported) {
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78 | JOptionPane.showMessageDialog(Main.parent, tr("No Exporter found! Nothing saved."), tr("Warning"),
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79 | JOptionPane.WARNING_MESSAGE);
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80 | return false;
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81 | }
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82 | layer.setName(file.getName());
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83 | layer.setAssociatedFile(file);
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84 | if (layer instanceof OsmDataLayer) {
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85 | ((OsmDataLayer) layer).onPostSaveToFile();
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86 | }
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87 | Main.parent.repaint();
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88 | } catch (IOException e) {
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89 | e.printStackTrace();
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90 | return false;
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91 | }
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92 | return true;
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93 | }
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94 |
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95 | protected abstract File getFile(Layer layer);
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96 |
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97 | /**
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98 | * Refreshes the enabled state
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99 | *
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100 | */
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101 | @Override
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102 | protected void updateEnabledState() {
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103 | if (Main.applet) {
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104 | setEnabled(false);
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105 | return;
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106 | }
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107 | boolean check = Main.isDisplayingMapView()
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108 | && Main.map.mapView.getActiveLayer() != null;
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109 | if(!check) {
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110 | setEnabled(false);
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111 | return;
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112 | }
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113 | Layer layer = Main.map.mapView.getActiveLayer();
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114 | setEnabled(layer != null && layer.isSavable());
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115 | }
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116 |
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117 | /**
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118 | * Creates a new "Save" dialog for a single {@link ExtensionFileFilter} and makes it visible.<br/>
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119 | * When the user has chosen a file, checks the file extension, and confirms overwrite if needed.
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120 | *
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121 | * @param title The dialog title
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122 | * @param filter The dialog file filter
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123 | * @return The output {@code File}
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124 | * @since 5456
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125 | * @see DiskAccessAction#createAndOpenFileChooser(boolean, boolean, String, FileFilter, int, String)
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126 | */
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127 | public static File createAndOpenSaveFileChooser(String title, ExtensionFileFilter filter) {
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128 | JFileChooser fc = createAndOpenFileChooser(false, false, title, filter, JFileChooser.FILES_ONLY, null);
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129 | return checkFileAndConfirmOverWrite(fc, filter.getDefaultExtension());
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130 | }
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131 |
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132 | /**
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133 | * Creates a new "Save" dialog for a given file extension and makes it visible.<br/>
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134 | * When the user has chosen a file, checks the file extension, and confirms overwrite if needed.
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135 | *
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136 | * @param title The dialog title
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137 | * @param extension The file extension
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138 | * @return The output {@code File}
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139 | * @see DiskAccessAction#createAndOpenFileChooser(boolean, boolean, String, String)
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140 | */
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141 | public static File createAndOpenSaveFileChooser(String title, String extension) {
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142 | JFileChooser fc = createAndOpenFileChooser(false, false, title, extension);
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143 | return checkFileAndConfirmOverWrite(fc, extension);
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144 | }
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145 |
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146 | private static File checkFileAndConfirmOverWrite(JFileChooser fc, String extension) {
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147 | if (fc == null) return null;
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148 | File file = fc.getSelectedFile();
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149 |
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150 | FileFilter ff = fc.getFileFilter();
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151 | if (!ff.accept(file)) {
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152 | // Extension of another filefilter given ?
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153 | for (FileFilter cff : fc.getChoosableFileFilters()) {
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154 | if (cff.accept(file)) {
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155 | fc.setFileFilter(cff);
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156 | return file;
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157 | }
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158 | }
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159 | // No filefilter accepts current filename, add default extension
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160 | String fn = file.getPath();
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161 | if (ff instanceof ExtensionFileFilter) {
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162 | fn += "." + ((ExtensionFileFilter)ff).getDefaultExtension();
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163 | } else if (extension != null) {
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164 | fn += "." + extension;
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165 | }
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166 | file = new File(fn);
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167 | if (!confirmOverwrite(file))
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168 | return null;
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169 | }
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170 | return file;
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171 | }
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172 |
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173 | public static boolean confirmOverwrite(File file) {
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174 | if (file == null || (file.exists())) {
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175 | ExtendedDialog dialog = new ExtendedDialog(
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176 | Main.parent,
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177 | tr("Overwrite"),
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178 | new String[] {tr("Overwrite"), tr("Cancel")}
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179 | );
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180 | dialog.setContent(tr("File exists. Overwrite?"));
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181 | dialog.setButtonIcons(new String[] {"save_as.png", "cancel.png"});
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182 | dialog.showDialog();
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183 | return (dialog.getValue() == 1);
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184 | }
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185 | return true;
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186 | }
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187 |
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188 | protected void addToFileOpenHistory() {
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189 | String filepath;
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190 | try {
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191 | filepath = file.getCanonicalPath();
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192 | } catch (IOException ign) {
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193 | return;
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194 | }
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195 |
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196 | int maxsize = Math.max(0, Main.pref.getInteger("file-open.history.max-size", 15));
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197 | Collection<String> oldHistory = Main.pref.getCollection("file-open.history");
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198 | List<String> history = new LinkedList<String>(oldHistory);
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199 | history.remove(filepath);
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200 | history.add(0, filepath);
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201 | Main.pref.putCollectionBounded("file-open.history", maxsize, history);
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202 | }
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203 | }
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