1 | // License: GPL. For details, see LICENSE file.
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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.util.ArrayList;
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10 | import java.util.Collection;
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11 | import java.util.Collections;
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12 | import java.util.List;
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13 | import java.util.concurrent.Future;
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14 |
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15 | import org.openstreetmap.josm.gui.MainApplication;
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16 | import org.openstreetmap.josm.gui.dialogs.LayerListDialog;
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17 | import org.openstreetmap.josm.gui.dialogs.layer.MergeGpxLayerDialog;
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18 | import org.openstreetmap.josm.gui.layer.GpxLayer;
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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.gui.util.GuiHelper;
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22 | import org.openstreetmap.josm.spi.preferences.Config;
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23 | import org.openstreetmap.josm.tools.ImageProvider;
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24 | import org.openstreetmap.josm.tools.Logging;
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25 | import org.openstreetmap.josm.tools.Shortcut;
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26 | import org.openstreetmap.josm.tools.Utils;
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27 |
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28 | /**
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29 | * Action that merges two or more OSM data layers.
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30 | * @since 1890
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31 | */
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32 | public class MergeLayerAction extends AbstractMergeAction {
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33 |
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34 | /**
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35 | * Constructs a new {@code MergeLayerAction}.
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36 | */
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37 | public MergeLayerAction() {
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38 | super(tr("Merge layer"), "dialogs/mergedown",
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39 | tr("Merge the current layer into another layer"),
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40 | Shortcut.registerShortcut("system:merge", tr("Edit: {0}",
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41 | tr("Merge")), KeyEvent.VK_M, Shortcut.CTRL),
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42 | true, "action/mergelayer", true);
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43 | setHelpId(ht("/Action/MergeLayer"));
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44 | }
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45 |
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46 | /**
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47 | * Submits merge of layers.
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48 | * @param targetLayers possible target layers
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49 | * @param sourceLayers source layers
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50 | * @return a Future representing pending completion of the merge task, or {@code null}
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51 | * @since 11885 (return type)
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52 | */
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53 | protected Future<?> doMerge(List<Layer> targetLayers, final Collection<Layer> sourceLayers) {
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54 | final boolean onlygpx = targetLayers.stream().noneMatch(l -> !(l instanceof GpxLayer));
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55 | final TargetLayerDialogResult<Layer> res = askTargetLayer(targetLayers, onlygpx,
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56 | tr("Cut timewise overlapping parts of tracks"),
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57 | onlygpx && Config.getPref().getBoolean("mergelayer.gpx.cut", false));
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58 | final Layer targetLayer = res.selectedTargetLayer;
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59 | if (targetLayer == null)
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60 | return null;
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61 |
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62 | if (onlygpx) {
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63 | Config.getPref().putBoolean("mergelayer.gpx.cut", res.checkboxTicked);
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64 | }
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65 |
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66 | final Object actionName = getValue(NAME);
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67 | if (onlygpx && res.checkboxTicked) {
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68 | List<GpxLayer> layers = new ArrayList<>();
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69 | layers.add((GpxLayer) targetLayer);
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70 | for (Layer sl : sourceLayers) {
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71 | if (sl != null && !sl.equals(targetLayer)) {
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72 | layers.add((GpxLayer) sl);
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73 | }
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74 | }
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75 | final MergeGpxLayerDialog d = new MergeGpxLayerDialog(MainApplication.getMainFrame(), layers);
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76 |
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77 | if (d.showDialog().getValue() == 1) {
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78 |
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79 | final boolean connect = d.connectCuts();
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80 | final List<GpxLayer> sortedLayers = d.getSortedLayers();
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81 |
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82 | return MainApplication.worker.submit(() -> {
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83 | final long start = System.currentTimeMillis();
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84 |
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85 | for (int i = sortedLayers.size() - 2; i >= 0; i--) {
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86 | final GpxLayer lower = sortedLayers.get(i + 1);
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87 | sortedLayers.get(i).mergeFrom(lower, true, connect);
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88 | GuiHelper.runInEDTAndWait(() -> getLayerManager().removeLayer(lower));
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89 | }
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90 |
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91 | Logging.info(tr("{0} completed in {1}", actionName, Utils.getDurationString(System.currentTimeMillis() - start)));
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92 | });
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93 | }
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94 | }
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95 |
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96 | return MainApplication.worker.submit(() -> {
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97 | final long start = System.currentTimeMillis();
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98 | boolean layerMerged = false;
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99 | for (final Layer sourceLayer: sourceLayers) {
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100 | if (sourceLayer != null && !sourceLayer.equals(targetLayer)) {
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101 | if (sourceLayer instanceof OsmDataLayer && targetLayer instanceof OsmDataLayer
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102 | && ((OsmDataLayer) sourceLayer).isUploadDiscouraged() != ((OsmDataLayer) targetLayer).isUploadDiscouraged()
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103 | && Boolean.TRUE.equals(GuiHelper.runInEDTAndWaitAndReturn(() ->
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104 | warnMergingUploadDiscouragedLayers(sourceLayer, targetLayer)))) {
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105 | break;
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106 | }
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107 | targetLayer.mergeFrom(sourceLayer);
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108 | GuiHelper.runInEDTAndWait(() -> getLayerManager().removeLayer(sourceLayer));
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109 | layerMerged = true;
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110 | }
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111 | }
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112 |
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113 | if (layerMerged) {
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114 | getLayerManager().setActiveLayer(targetLayer);
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115 | Logging.info(tr("{0} completed in {1}", actionName, Utils.getDurationString(System.currentTimeMillis() - start)));
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116 | }
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117 | });
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118 | }
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119 |
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120 | /**
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121 | * Merges a list of layers together.
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122 | * @param sourceLayers The layers to merge
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123 | * @return a Future representing pending completion of the merge task, or {@code null}
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124 | * @since 11885 (return type)
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125 | */
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126 | public Future<?> merge(List<Layer> sourceLayers) {
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127 | return doMerge(sourceLayers, sourceLayers);
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128 | }
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129 |
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130 | /**
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131 | * Merges the given source layer with another one, determined at runtime.
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132 | * @param sourceLayer The source layer to merge
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133 | * @return a Future representing pending completion of the merge task, or {@code null}
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134 | * @since 11885 (return type)
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135 | */
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136 | public Future<?> merge(Layer sourceLayer) {
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137 | if (sourceLayer == null)
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138 | return null;
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139 | List<Layer> targetLayers = LayerListDialog.getInstance().getModel().getPossibleMergeTargets(sourceLayer);
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140 | if (targetLayers.isEmpty()) {
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141 | warnNoTargetLayersForSourceLayer(sourceLayer);
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142 | return null;
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143 | }
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144 | return doMerge(targetLayers, Collections.singleton(sourceLayer));
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145 | }
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146 |
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147 | @Override
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148 | public void actionPerformed(ActionEvent e) {
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149 | merge(getSourceLayer());
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150 | }
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151 |
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152 | @Override
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153 | protected void updateEnabledState() {
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154 | GuiHelper.runInEDT(() -> {
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155 | final Layer sourceLayer = getSourceLayer();
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156 | if (sourceLayer == null) {
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157 | setEnabled(false);
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158 | } else {
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159 | try {
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160 | setEnabled(!LayerListDialog.getInstance().getModel().getPossibleMergeTargets(sourceLayer).isEmpty());
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161 | } catch (IllegalStateException e) {
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162 | // May occur when destroying last layer / exiting JOSM, see #14476
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163 | setEnabled(false);
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164 | Logging.error(e);
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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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170 | /**
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171 | * Returns the source layer.
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172 | * @return the source layer
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173 | */
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174 | protected Layer getSourceLayer() {
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175 | return getLayerManager().getActiveLayer();
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176 | }
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177 |
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178 | /**
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179 | * Warns about a discouraged merge operation, ask for confirmation.
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180 | * @param sourceLayer The source layer
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181 | * @param targetLayer The target layer
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182 | * @return {@code true} if the user wants to cancel, {@code false} if they want to continue
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183 | */
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184 | public static final boolean warnMergingUploadDiscouragedLayers(Layer sourceLayer, Layer targetLayer) {
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185 | return GuiHelper.warnUser(tr("Merging layers with different upload policies"),
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186 | "<html>" +
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187 | tr("You are about to merge data between layers ''{0}'' and ''{1}''.<br /><br />"+
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188 | "These layers have different upload policies and should not been merged as it.<br />"+
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189 | "Merging them will result to enforce the stricter policy (upload discouraged) to ''{1}''.<br /><br />"+
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190 | "<b>This is not the recommended way of merging such data</b>.<br />"+
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191 | "You should instead check and merge each object, one by one, by using ''<i>Merge selection</i>''.<br /><br />"+
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192 | "Are you sure you want to continue?",
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193 | Utils.escapeReservedCharactersHTML(sourceLayer.getName()),
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194 | Utils.escapeReservedCharactersHTML(targetLayer.getName()),
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195 | Utils.escapeReservedCharactersHTML(targetLayer.getName()))+
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196 | "</html>",
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197 | ImageProvider.get("dialogs", "mergedown"), tr("Ignore this hint and merge anyway"));
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198 | }
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199 | }
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