1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.dialogs.changeset;
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3 |
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4 | import java.util.ArrayList;
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5 | import java.util.Collection;
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6 | import java.util.Collections;
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7 | import java.util.Comparator;
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8 | import java.util.HashSet;
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9 | import java.util.List;
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10 | import java.util.Set;
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11 |
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12 | import javax.swing.DefaultListModel;
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13 | import javax.swing.DefaultListSelectionModel;
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14 |
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15 | import org.openstreetmap.josm.data.osm.Changeset;
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16 | import org.openstreetmap.josm.data.osm.ChangesetCache;
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17 | import org.openstreetmap.josm.data.osm.ChangesetCacheEvent;
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18 | import org.openstreetmap.josm.data.osm.ChangesetCacheListener;
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19 | import org.openstreetmap.josm.data.osm.DataSet;
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20 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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21 | import org.openstreetmap.josm.data.osm.Storage;
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22 |
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23 | public class ChangesetListModel extends DefaultListModel<Changeset> implements ChangesetCacheListener {
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24 | private final transient List<Changeset> data = new ArrayList<>();
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25 | private final transient Storage<Changeset> shownChangesets = new Storage<>(true);
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26 | private final DefaultListSelectionModel selectionModel;
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27 |
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28 | public ChangesetListModel(DefaultListSelectionModel selectionModel) {
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29 | this.selectionModel = selectionModel;
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30 | }
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31 |
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32 | public Set<Changeset> getSelectedChangesets() {
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33 | Set<Changeset> ret = new HashSet<>();
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34 | for (int i = 0; i < getSize(); i++) {
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35 | if (selectionModel.isSelectedIndex(i)) {
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36 | ret.add(data.get(i));
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37 | }
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38 | }
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39 | return ret;
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40 | }
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41 |
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42 | public Set<Integer> getSelectedChangesetIds() {
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43 | Set<Integer> ret = new HashSet<>();
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44 | for (int i = 0; i < getSize(); i++) {
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45 | if (selectionModel.isSelectedIndex(i)) {
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46 | ret.add(data.get(i).getId());
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47 | }
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48 | }
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49 | return ret;
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50 | }
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51 |
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52 | public void setSelectedChangesets(Collection<Changeset> changesets) {
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53 | selectionModel.clearSelection();
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54 | if (changesets == null) return;
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55 | for (Changeset cs: changesets) {
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56 | int idx = data.indexOf(cs);
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57 | if (idx < 0) {
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58 | continue;
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59 | }
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60 | selectionModel.addSelectionInterval(idx, idx);
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61 | }
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62 | }
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63 |
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64 | protected void setChangesets(Collection<Changeset> changesets) {
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65 | shownChangesets.clear();
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66 | if (changesets != null) {
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67 | shownChangesets.addAll(changesets);
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68 | }
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69 | updateModel();
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70 | }
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71 |
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72 | private void updateModel() {
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73 | Set<Changeset> sel = getSelectedChangesets();
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74 | data.clear();
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75 | data.addAll(shownChangesets);
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76 | ChangesetCache cache = ChangesetCache.getInstance();
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77 | for (Changeset cs: data) {
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78 | if (cache.contains(cs) && cache.get(cs.getId()) != cs) {
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79 | cs.mergeFrom(cache.get(cs.getId()));
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80 | }
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81 | }
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82 | sort();
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83 | fireIntervalAdded(this, 0, getSize());
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84 | setSelectedChangesets(sel);
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85 | }
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86 |
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87 | public void initFromChangesetIds(Collection<Integer> ids) {
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88 | if (ids == null || ids.isEmpty()) {
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89 | setChangesets(null);
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90 | return;
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91 | }
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92 | Set<Changeset> changesets = new HashSet<>(ids.size());
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93 | for (int id: ids) {
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94 | if (id <= 0) {
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95 | continue;
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96 | }
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97 | changesets.add(new Changeset(id));
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98 | }
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99 | setChangesets(changesets);
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100 | }
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101 |
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102 | public void initFromPrimitives(Collection<? extends OsmPrimitive> primitives) {
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103 | if (primitives == null) {
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104 | setChangesets(null);
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105 | return;
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106 | }
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107 | Set<Changeset> changesets = new HashSet<>();
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108 | for (OsmPrimitive p: primitives) {
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109 | if (p.getChangesetId() <= 0) {
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110 | continue;
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111 | }
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112 | changesets.add(new Changeset(p.getChangesetId()));
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113 | }
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114 | setChangesets(changesets);
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115 | }
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116 |
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117 | public void initFromDataSet(DataSet ds) {
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118 | if (ds == null) {
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119 | setChangesets(null);
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120 | return;
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121 | }
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122 | Set<Changeset> changesets = new HashSet<>();
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123 | for (OsmPrimitive p: ds.allPrimitives()) {
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124 | if (p.getChangesetId() <= 0) {
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125 | continue;
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126 | }
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127 | changesets.add(new Changeset(p.getChangesetId()));
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128 | }
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129 | setChangesets(changesets);
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130 | }
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131 |
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132 | @Override
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133 | public Changeset getElementAt(int idx) {
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134 | return data.get(idx);
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135 | }
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136 |
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137 | @Override
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138 | public int getSize() {
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139 | return data.size();
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140 | }
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141 |
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142 | protected void sort() {
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143 | Collections.sort(
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144 | data,
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145 | new Comparator<Changeset>() {
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146 | @Override
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147 | public int compare(Changeset cs1, Changeset cs2) {
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148 | if (cs1.getId() > cs2.getId()) return -1;
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149 | if (cs1.getId() == cs2.getId()) return 0;
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150 | return 1;
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151 | }
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152 | }
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153 | );
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154 | }
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155 |
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156 | /**
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157 | * Replies true if there is at least one selected open changeset
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158 | *
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159 | * @return true if there is at least one selected open changeset
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160 | */
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161 | public boolean hasSelectedOpenChangesets() {
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162 | return !getSelectedOpenChangesets().isEmpty();
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163 | }
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164 |
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165 | /**
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166 | * Replies the selected open changesets
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167 | *
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168 | * @return the selected open changesets
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169 | */
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170 | public List<Changeset> getSelectedOpenChangesets() {
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171 | List<Changeset> ret = new ArrayList<>();
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172 | for (int i = 0; i < getSize(); i++) {
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173 | if (selectionModel.isSelectedIndex(i)) {
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174 | Changeset cs = data.get(i);
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175 | if (cs.isOpen()) {
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176 | ret.add(cs);
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177 | }
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178 | }
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179 | }
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180 | return ret;
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181 | }
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182 |
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183 | /* ---------------------------------------------------------------------------- */
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184 | /* Interface ChangesetCacheListener */
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185 | /* ---------------------------------------------------------------------------- */
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186 | @Override
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187 | public void changesetCacheUpdated(ChangesetCacheEvent event) {
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188 | Set<Changeset> sel = getSelectedChangesets();
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189 | for (Changeset cs: event.getAddedChangesets()) {
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190 | int idx = data.indexOf(cs);
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191 | if (idx >= 0 && data.get(idx) != cs) {
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192 | data.get(idx).mergeFrom(cs);
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193 | }
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194 | }
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195 | for (Changeset cs: event.getUpdatedChangesets()) {
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196 | int idx = data.indexOf(cs);
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197 | if (idx >= 0 && data.get(idx) != cs) {
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198 | data.get(idx).mergeFrom(cs);
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199 | }
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200 | }
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201 | for (Changeset cs: event.getRemovedChangesets()) {
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202 | int idx = data.indexOf(cs);
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203 | if (idx >= 0) {
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204 | // replace with an incomplete changeset
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205 | data.set(idx, new Changeset(cs.getId()));
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206 | }
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207 | }
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208 | fireContentsChanged(this, 0, getSize());
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209 | setSelectedChangesets(sel);
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210 | }
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211 | }
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