1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.history;
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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.GridBagConstraints;
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7 | import java.awt.GridBagLayout;
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8 | import java.awt.Insets;
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9 | import java.awt.Point;
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10 | import java.awt.event.ActionEvent;
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11 | import java.awt.event.MouseAdapter;
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12 | import java.awt.event.MouseEvent;
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13 |
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14 | import javax.swing.AbstractAction;
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15 | import javax.swing.JPanel;
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16 | import javax.swing.JPopupMenu;
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17 | import javax.swing.JScrollPane;
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18 | import javax.swing.JTable;
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19 | import javax.swing.ListSelectionModel;
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20 | import javax.swing.event.TableModelEvent;
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21 | import javax.swing.event.TableModelListener;
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22 | import javax.swing.table.TableModel;
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23 |
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24 | import org.openstreetmap.josm.Main;
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25 | import org.openstreetmap.josm.actions.AutoScaleAction;
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26 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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27 | import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
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28 | import org.openstreetmap.josm.data.osm.PrimitiveId;
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29 | import org.openstreetmap.josm.data.osm.SimplePrimitiveId;
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30 | import org.openstreetmap.josm.data.osm.history.History;
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31 | import org.openstreetmap.josm.data.osm.history.HistoryDataSet;
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32 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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33 | import org.openstreetmap.josm.gui.util.AdjustmentSynchronizer;
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34 | import org.openstreetmap.josm.gui.util.GuiHelper;
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35 | import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher;
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36 | import org.openstreetmap.josm.tools.ImageProvider;
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37 |
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38 | /**
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39 | * NodeListViewer is a UI component which displays the node list of two
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40 | * version of a {@link OsmPrimitive} in a {@link History}.
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41 | *
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42 | * <ul>
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43 | * <li>on the left, it displays the node list for the version at {@link PointInTimeType#REFERENCE_POINT_IN_TIME}</li>
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44 | * <li>on the right, it displays the node list for the version at {@link PointInTimeType#CURRENT_POINT_IN_TIME}</li>
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45 | * </ul>
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46 | * @since 1709
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47 | */
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48 | public class NodeListViewer extends JPanel {
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49 |
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50 | private transient HistoryBrowserModel model;
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51 | private VersionInfoPanel referenceInfoPanel;
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52 | private VersionInfoPanel currentInfoPanel;
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53 | private transient AdjustmentSynchronizer adjustmentSynchronizer;
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54 | private transient SelectionSynchronizer selectionSynchronizer;
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55 | private NodeListPopupMenu popupMenu;
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56 |
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57 | /**
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58 | * Constructs a new {@code NodeListViewer}.
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59 | * @param model history browser model
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60 | */
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61 | public NodeListViewer(HistoryBrowserModel model) {
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62 | setModel(model);
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63 | build();
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64 | }
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65 |
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66 | protected JScrollPane embeddInScrollPane(JTable table) {
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67 | JScrollPane pane = new JScrollPane(table);
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68 | adjustmentSynchronizer.participateInSynchronizedScrolling(pane.getVerticalScrollBar());
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69 | return pane;
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70 | }
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71 |
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72 | protected JTable buildReferenceNodeListTable() {
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73 | final DiffTableModel tableModel = model.getNodeListTableModel(PointInTimeType.REFERENCE_POINT_IN_TIME);
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74 | final NodeListTableColumnModel columnModel = new NodeListTableColumnModel();
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75 | final JTable table = new JTable(tableModel, columnModel);
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76 | tableModel.addTableModelListener(new ReversedChangeListener(table, columnModel));
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77 | table.setName("table.referencenodelisttable");
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78 | table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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79 | selectionSynchronizer.participateInSynchronizedSelection(table.getSelectionModel());
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80 | table.addMouseListener(new InternalPopupMenuLauncher());
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81 | table.addMouseListener(new DoubleClickAdapter(table));
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82 | return table;
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83 | }
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84 |
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85 | protected JTable buildCurrentNodeListTable() {
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86 | final DiffTableModel tableModel = model.getNodeListTableModel(PointInTimeType.CURRENT_POINT_IN_TIME);
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87 | final NodeListTableColumnModel columnModel = new NodeListTableColumnModel();
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88 | final JTable table = new JTable(tableModel, columnModel);
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89 | tableModel.addTableModelListener(new ReversedChangeListener(table, columnModel));
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90 | table.setName("table.currentnodelisttable");
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91 | table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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92 | selectionSynchronizer.participateInSynchronizedSelection(table.getSelectionModel());
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93 | table.addMouseListener(new InternalPopupMenuLauncher());
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94 | table.addMouseListener(new DoubleClickAdapter(table));
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95 | return table;
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96 | }
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97 |
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98 | protected void build() {
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99 | setLayout(new GridBagLayout());
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100 | GridBagConstraints gc = new GridBagConstraints();
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101 |
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102 | // ---------------------------
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103 | gc.gridx = 0;
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104 | gc.gridy = 0;
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105 | gc.gridwidth = 1;
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106 | gc.gridheight = 1;
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107 | gc.weightx = 0.5;
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108 | gc.weighty = 0.0;
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109 | gc.insets = new Insets(5, 5, 5, 0);
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110 | gc.fill = GridBagConstraints.HORIZONTAL;
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111 | gc.anchor = GridBagConstraints.FIRST_LINE_START;
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112 | referenceInfoPanel = new VersionInfoPanel(model, PointInTimeType.REFERENCE_POINT_IN_TIME);
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113 | add(referenceInfoPanel, gc);
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114 |
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115 | gc.gridx = 1;
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116 | gc.gridy = 0;
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117 | gc.gridwidth = 1;
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118 | gc.gridheight = 1;
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119 | gc.fill = GridBagConstraints.HORIZONTAL;
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120 | gc.weightx = 0.5;
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121 | gc.weighty = 0.0;
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122 | gc.anchor = GridBagConstraints.FIRST_LINE_START;
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123 | currentInfoPanel = new VersionInfoPanel(model, PointInTimeType.CURRENT_POINT_IN_TIME);
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124 | add(currentInfoPanel, gc);
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125 |
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126 | adjustmentSynchronizer = new AdjustmentSynchronizer();
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127 | selectionSynchronizer = new SelectionSynchronizer();
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128 |
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129 | popupMenu = new NodeListPopupMenu();
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130 |
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131 | // ---------------------------
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132 | gc.gridx = 0;
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133 | gc.gridy = 1;
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134 | gc.gridwidth = 1;
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135 | gc.gridheight = 1;
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136 | gc.weightx = 0.5;
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137 | gc.weighty = 1.0;
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138 | gc.fill = GridBagConstraints.BOTH;
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139 | gc.anchor = GridBagConstraints.NORTHWEST;
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140 | add(embeddInScrollPane(buildReferenceNodeListTable()), gc);
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141 |
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142 | gc.gridx = 1;
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143 | gc.gridy = 1;
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144 | gc.gridwidth = 1;
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145 | gc.gridheight = 1;
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146 | gc.weightx = 0.5;
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147 | gc.weighty = 1.0;
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148 | gc.fill = GridBagConstraints.BOTH;
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149 | gc.anchor = GridBagConstraints.NORTHWEST;
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150 | add(embeddInScrollPane(buildCurrentNodeListTable()), gc);
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151 | }
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152 |
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153 | protected void unregisterAsChangeListener(HistoryBrowserModel model) {
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154 | if (currentInfoPanel != null) {
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155 | model.removeChangeListener(currentInfoPanel);
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156 | }
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157 | if (referenceInfoPanel != null) {
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158 | model.removeChangeListener(referenceInfoPanel);
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159 | }
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160 | }
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161 |
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162 | protected void registerAsChangeListener(HistoryBrowserModel model) {
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163 | if (currentInfoPanel != null) {
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164 | model.addChangeListener(currentInfoPanel);
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165 | }
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166 | if (referenceInfoPanel != null) {
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167 | model.addChangeListener(referenceInfoPanel);
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168 | }
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169 | }
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170 |
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171 | /**
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172 | * Sets the history browser model.
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173 | * @param model the history browser model
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174 | */
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175 | public void setModel(HistoryBrowserModel model) {
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176 | if (this.model != null) {
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177 | unregisterAsChangeListener(model);
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178 | }
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179 | this.model = model;
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180 | if (this.model != null) {
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181 | registerAsChangeListener(model);
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182 | }
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183 | }
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184 |
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185 | static final class ReversedChangeListener implements TableModelListener {
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186 | private final NodeListTableColumnModel columnModel;
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187 | private final JTable table;
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188 | private Boolean reversed;
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189 | private final String nonReversedText;
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190 | private final String reversedText;
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191 |
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192 | ReversedChangeListener(JTable table, NodeListTableColumnModel columnModel) {
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193 | this.columnModel = columnModel;
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194 | this.table = table;
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195 | nonReversedText = tr("Nodes") + (table.getFont().canDisplay('\u25bc') ? " \u25bc" : " (1-n)");
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196 | reversedText = tr("Nodes") + (table.getFont().canDisplay('\u25b2') ? " \u25b2" : " (n-1)");
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197 | }
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198 |
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199 | @Override
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200 | public void tableChanged(TableModelEvent e) {
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201 | if (e.getSource() instanceof DiffTableModel) {
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202 | final DiffTableModel mod = (DiffTableModel) e.getSource();
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203 | if (reversed == null || reversed != mod.isReversed()) {
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204 | reversed = mod.isReversed();
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205 | columnModel.getColumn(0).setHeaderValue(reversed ? reversedText : nonReversedText);
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206 | table.getTableHeader().setToolTipText(
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207 | reversed ? tr("The nodes of this way are in reverse order") : null);
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208 | table.getTableHeader().repaint();
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209 | }
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210 | }
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211 | }
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212 | }
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213 |
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214 | static class NodeListPopupMenu extends JPopupMenu {
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215 | private final ZoomToNodeAction zoomToNodeAction;
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216 | private final ShowHistoryAction showHistoryAction;
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217 |
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218 | NodeListPopupMenu() {
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219 | zoomToNodeAction = new ZoomToNodeAction();
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220 | add(zoomToNodeAction);
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221 | showHistoryAction = new ShowHistoryAction();
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222 | add(showHistoryAction);
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223 | }
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224 |
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225 | public void prepare(PrimitiveId pid) {
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226 | zoomToNodeAction.setPrimitiveId(pid);
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227 | zoomToNodeAction.updateEnabledState();
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228 |
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229 | showHistoryAction.setPrimitiveId(pid);
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230 | showHistoryAction.updateEnabledState();
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231 | }
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232 | }
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233 |
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234 | static class ZoomToNodeAction extends AbstractAction {
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235 | private transient PrimitiveId primitiveId;
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236 |
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237 | /**
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238 | * Constructs a new {@code ZoomToNodeAction}.
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239 | */
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240 | ZoomToNodeAction() {
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241 | putValue(NAME, tr("Zoom to node"));
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242 | putValue(SHORT_DESCRIPTION, tr("Zoom to this node in the current data layer"));
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243 | putValue(SMALL_ICON, ImageProvider.get("dialogs", "zoomin"));
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244 | }
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245 |
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246 | @Override
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247 | public void actionPerformed(ActionEvent e) {
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248 | if (!isEnabled())
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249 | return;
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250 | OsmPrimitive p = getPrimitiveToZoom();
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251 | if (p != null) {
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252 | OsmDataLayer editLayer = Main.getLayerManager().getEditLayer();
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253 | if (editLayer != null) {
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254 | editLayer.data.setSelected(p.getPrimitiveId());
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255 | AutoScaleAction.autoScale("selection");
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256 | }
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257 | }
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258 | }
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259 |
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260 | public void setPrimitiveId(PrimitiveId pid) {
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261 | this.primitiveId = pid;
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262 | updateEnabledState();
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263 | }
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264 |
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265 | protected OsmPrimitive getPrimitiveToZoom() {
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266 | if (primitiveId == null)
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267 | return null;
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268 | OsmDataLayer editLayer = Main.getLayerManager().getEditLayer();
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269 | if (editLayer == null)
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270 | return null;
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271 | return editLayer.data.getPrimitiveById(primitiveId);
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272 | }
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273 |
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274 | public void updateEnabledState() {
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275 | setEnabled(Main.getLayerManager().getEditLayer() != null && getPrimitiveToZoom() != null);
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276 | }
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277 | }
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278 |
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279 | static class ShowHistoryAction extends AbstractAction {
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280 | private transient PrimitiveId primitiveId;
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281 |
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282 | /**
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283 | * Constructs a new {@code ShowHistoryAction}.
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284 | */
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285 | ShowHistoryAction() {
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286 | putValue(NAME, tr("Show history"));
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287 | putValue(SHORT_DESCRIPTION, tr("Open a history browser with the history of this node"));
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288 | putValue(SMALL_ICON, ImageProvider.get("dialogs", "history"));
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289 | }
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290 |
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291 | @Override
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292 | public void actionPerformed(ActionEvent e) {
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293 | if (isEnabled()) {
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294 | run();
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295 | }
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296 | }
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297 |
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298 | public void setPrimitiveId(PrimitiveId pid) {
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299 | this.primitiveId = pid;
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300 | updateEnabledState();
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301 | }
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302 |
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303 | public void run() {
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304 | if (HistoryDataSet.getInstance().getHistory(primitiveId) == null) {
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305 | Main.worker.submit(new HistoryLoadTask().add(primitiveId));
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306 | }
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307 | Main.worker.submit(() -> {
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308 | final History h = HistoryDataSet.getInstance().getHistory(primitiveId);
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309 | if (h == null)
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310 | return;
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311 | GuiHelper.runInEDT(() -> HistoryBrowserDialogManager.getInstance().show(h));
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312 | });
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313 | }
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314 |
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315 | public void updateEnabledState() {
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316 | setEnabled(primitiveId != null && !primitiveId.isNew());
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317 | }
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318 | }
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319 |
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320 | private static PrimitiveId primitiveIdAtRow(TableModel model, int row) {
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321 | DiffTableModel castedModel = (DiffTableModel) model;
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322 | Long id = (Long) castedModel.getValueAt(row, 0).value;
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323 | return id == null ? null : new SimplePrimitiveId(id, OsmPrimitiveType.NODE);
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324 | }
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325 |
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326 | class InternalPopupMenuLauncher extends PopupMenuLauncher {
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327 | InternalPopupMenuLauncher() {
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328 | super(popupMenu);
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329 | }
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330 |
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331 | @Override
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332 | protected int checkTableSelection(JTable table, Point p) {
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333 | int row = super.checkTableSelection(table, p);
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334 | popupMenu.prepare(primitiveIdAtRow(table.getModel(), row));
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335 | return row;
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336 | }
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337 | }
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338 |
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339 | static class DoubleClickAdapter extends MouseAdapter {
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340 | private final JTable table;
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341 | private final ShowHistoryAction showHistoryAction;
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342 |
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343 | DoubleClickAdapter(JTable table) {
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344 | this.table = table;
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345 | showHistoryAction = new ShowHistoryAction();
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346 | }
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347 |
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348 | @Override
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349 | public void mouseClicked(MouseEvent e) {
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350 | if (e.getClickCount() < 2)
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351 | return;
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352 | int row = table.rowAtPoint(e.getPoint());
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353 | if (row <= 0)
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354 | return;
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355 | PrimitiveId pid = primitiveIdAtRow(table.getModel(), row);
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356 | if (pid == null || pid.isNew())
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357 | return;
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358 | showHistoryAction.setPrimitiveId(pid);
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359 | showHistoryAction.run();
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360 | }
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361 | }
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362 | }
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