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 |
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10 | import javax.swing.JFileChooser;
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11 | import javax.swing.JOptionPane;
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12 | import javax.swing.filechooser.FileFilter;
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13 |
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14 | import org.openstreetmap.josm.Main;
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15 | import org.openstreetmap.josm.data.conflict.ConflictCollection;
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16 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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17 | import org.openstreetmap.josm.gui.ExtendedDialog;
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18 | import org.openstreetmap.josm.gui.OptionPaneUtil;
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19 | import org.openstreetmap.josm.gui.layer.GpxLayer;
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20 | import org.openstreetmap.josm.gui.layer.Layer;
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21 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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22 | import org.openstreetmap.josm.io.FileExporter;
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23 | import org.openstreetmap.josm.tools.Shortcut;
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24 |
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25 | public abstract class SaveActionBase extends DiskAccessAction {
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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 | public void actionPerformed(ActionEvent e) {
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32 | if (!isEnabled())
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33 | return;
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34 | doSave();
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35 | }
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36 |
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37 | public boolean doSave() {
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38 | Layer layer = null;
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39 | if (layer == null && Main.map != null && (Main.map.mapView.getActiveLayer() instanceof OsmDataLayer
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40 | || Main.map.mapView.getActiveLayer() instanceof GpxLayer)) {
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41 | layer = Main.map.mapView.getActiveLayer();
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42 | }
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43 | if (layer == null)
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44 | return false;
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45 | return doSave(layer);
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46 | }
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47 |
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48 | public boolean doSave(Layer layer) {
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49 | if (layer == null)
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50 | return false;
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51 | if ( !(layer instanceof OsmDataLayer) && !(layer instanceof GpxLayer))
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52 | return false;
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53 | if (!checkSaveConditions(layer))
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54 | return false;
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55 |
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56 | File file = getFile(layer);
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57 | if (file == null)
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58 | return false;
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59 |
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60 | try {
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61 | boolean exported = false;
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62 | for (FileExporter exporter : ExtensionFileFilter.exporters) {
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63 | if (exporter.acceptFile(file, layer)) {
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64 | exporter.exportData(file, layer);
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65 | exported = true;
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66 | }
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67 | }
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68 | if (!exported) {
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69 | OptionPaneUtil.showMessageDialog(Main.parent, tr("No Exporter found! Nothing saved."), tr("Warning"),
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70 | JOptionPane.WARNING_MESSAGE);
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71 | return false;
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72 | }
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73 | layer.setName(file.getName());
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74 | layer.setAssociatedFile(file);
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75 | Main.parent.repaint();
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76 | } catch (IOException e) {
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77 | e.printStackTrace();
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78 | return false;
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79 | }
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80 | return true;
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81 | }
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82 |
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83 | protected abstract File getFile(Layer layer);
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84 |
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85 | /**
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86 | * Checks whether it is ok to launch a save (whether we have data,
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87 | * there is no conflict etc.)
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88 | * @return <code>true</code>, if it is safe to save.
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89 | */
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90 | public boolean checkSaveConditions(Layer layer) {
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91 | if (layer == null) {
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92 | OptionPaneUtil.showMessageDialog(
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93 | Main.parent,
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94 | tr("Internal Error: cannot check conditions for no layer. Please report this as a bug."),
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95 | tr("Error"),
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96 | JOptionPane.ERROR_MESSAGE
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97 | );
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98 | return false;
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99 | }
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100 | if (Main.map == null) {
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101 | OptionPaneUtil.showMessageDialog(
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102 | Main.parent,
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103 | tr("No document open so nothing to save."),
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104 | tr("Warning"),
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105 | JOptionPane.WARNING_MESSAGE
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106 | );
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107 | return false;
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108 | }
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109 |
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110 | if (layer instanceof OsmDataLayer && isDataSetEmpty((OsmDataLayer)layer) && 1 != new ExtendedDialog(Main.parent, tr("Empty document"), tr("The document contains no data."), new String[] {tr("Save anyway"), tr("Cancel")}, new String[] {"save.png", "cancel.png"}).getValue())
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111 | return false;
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112 | if (layer instanceof GpxLayer && ((GpxLayer)layer).data == null)
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113 | return false;
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114 | if (layer instanceof OsmDataLayer) {
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115 | ConflictCollection conflicts = ((OsmDataLayer)layer).getConflicts();
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116 | if (conflicts != null && !conflicts.isEmpty()) {
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117 | int answer = new ExtendedDialog(Main.parent,
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118 | tr("Conflicts"),
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119 | tr("There are unresolved conflicts. Conflicts will not be saved and handled as if you rejected all. Continue?"),
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120 | new String[] {tr("Reject Conflicts and Save"), tr("Cancel")},
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121 | new String[] {"save.png", "cancel.png"}).getValue();
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122 |
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123 | if (answer != 1) return false;
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124 | }
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125 | }
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126 | return true;
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127 | }
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128 |
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129 | public static File openFileDialog(Layer layer) {
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130 | if (layer instanceof OsmDataLayer)
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131 | return createAndOpenSaveFileChooser(tr("Save OSM file"), ".osm");
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132 | else if (layer instanceof GpxLayer)
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133 | return createAndOpenSaveFileChooser(tr("Save GPX file"), ".gpx");
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134 | return createAndOpenSaveFileChooser(tr("Save Layer"), ".lay");
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135 | }
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136 |
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137 |
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138 | /**
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139 | * Check the data set if it would be empty on save. It is empty, if it contains
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140 | * no objects (after all objects that are created and deleted without being
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141 | * transferred to the server have been removed).
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142 | *
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143 | * @return <code>true</code>, if a save result in an empty data set.
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144 | */
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145 | private boolean isDataSetEmpty(OsmDataLayer layer) {
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146 | for (OsmPrimitive osm : layer.data.allNonDeletedPrimitives())
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147 | if (!osm.deleted || osm.id > 0)
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148 | return false;
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149 | return true;
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150 | }
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151 |
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152 | /**
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153 | * Refreshes the enabled state
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154 | *
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155 | */
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156 | @Override
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157 | protected void updateEnabledState() {
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158 | if (Main.applet) {
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159 | setEnabled(false);
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160 | return;
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161 | }
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162 | boolean check = Main.map != null
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163 | && Main.map.mapView !=null
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164 | && Main.map.mapView.getActiveLayer() != null;
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165 | if(!check) {
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166 | setEnabled(false);
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167 | return;
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168 | }
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169 | Layer layer = Main.map.mapView.getActiveLayer();
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170 | setEnabled(layer instanceof OsmDataLayer || layer instanceof GpxLayer);
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171 | }
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172 |
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173 | public static File createAndOpenSaveFileChooser(String title, String extension) {
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174 | String curDir = Main.pref.get("lastDirectory");
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175 | if (curDir.equals("")) {
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176 | curDir = ".";
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177 | }
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178 | JFileChooser fc = new JFileChooser(new File(curDir));
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179 | if (title != null) {
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180 | fc.setDialogTitle(title);
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181 | }
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182 |
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183 | fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
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184 | fc.setMultiSelectionEnabled(false);
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185 | fc.setAcceptAllFileFilterUsed(false);
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186 |
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187 | FileFilter defaultFilter = null;
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188 | for (FileExporter exporter : ExtensionFileFilter.exporters) {
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189 | fc.addChoosableFileFilter(exporter.filter);
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190 | if (extension.endsWith(exporter.filter.defaultExtension)) {
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191 | defaultFilter = exporter.filter;
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192 | }
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193 | }
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194 | if (defaultFilter != null) {
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195 | fc.setFileFilter(defaultFilter);
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196 | }
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197 |
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198 | int answer = fc.showSaveDialog(Main.parent);
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199 | if (answer != JFileChooser.APPROVE_OPTION)
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200 | return null;
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201 |
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202 | if (!fc.getCurrentDirectory().getAbsolutePath().equals(curDir)) {
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203 | Main.pref.put("lastDirectory", fc.getCurrentDirectory().getAbsolutePath());
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204 | }
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205 |
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206 | File file = fc.getSelectedFile();
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207 | if(extension != null){
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208 | String fn = file.getPath();
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209 | if(fn.indexOf('.') == -1)
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210 | {
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211 | FileFilter ff = fc.getFileFilter();
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212 | if (ff instanceof ExtensionFileFilter) {
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213 | fn += "." + ((ExtensionFileFilter)ff).defaultExtension;
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214 | } else {
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215 | fn += extension;
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216 | }
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217 | file = new File(fn);
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218 | }
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219 | }
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220 | if(file == null || (file.exists() && 1 != new ExtendedDialog(Main.parent,
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221 | tr("Overwrite"), tr("File exists. Overwrite?"),
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222 | new String[] {tr("Overwrite"), tr("Cancel")},
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223 | new String[] {"save_as.png", "cancel.png"}).getValue()))
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224 | return null;
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225 | return file;
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226 | }
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227 | }
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