1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.actions.relation;
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3 |
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4 | import static org.openstreetmap.josm.actions.relation.ExportRelationToGpxAction.Mode.FROM_FIRST_MEMBER;
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5 | import static org.openstreetmap.josm.actions.relation.ExportRelationToGpxAction.Mode.TO_FILE;
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6 | import static org.openstreetmap.josm.actions.relation.ExportRelationToGpxAction.Mode.TO_LAYER;
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7 | import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
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8 | import static org.openstreetmap.josm.tools.I18n.tr;
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9 |
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10 | import java.awt.event.ActionEvent;
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11 | import java.util.ArrayList;
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12 | import java.util.Arrays;
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13 | import java.util.Collection;
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14 | import java.util.Collections;
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15 | import java.util.EnumSet;
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16 | import java.util.HashMap;
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17 | import java.util.Iterator;
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18 | import java.util.List;
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19 | import java.util.ListIterator;
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20 | import java.util.Map;
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21 | import java.util.Stack;
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22 |
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23 | import org.openstreetmap.josm.actions.GpxExportAction;
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24 | import org.openstreetmap.josm.actions.OsmPrimitiveAction;
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25 | import org.openstreetmap.josm.data.gpx.GpxData;
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26 | import org.openstreetmap.josm.data.gpx.ImmutableGpxTrack;
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27 | import org.openstreetmap.josm.data.gpx.WayPoint;
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28 | import org.openstreetmap.josm.data.osm.Node;
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29 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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30 | import org.openstreetmap.josm.data.osm.Relation;
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31 | import org.openstreetmap.josm.data.osm.RelationMember;
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32 | import org.openstreetmap.josm.data.osm.Way;
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33 | import org.openstreetmap.josm.gui.MainApplication;
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34 | import org.openstreetmap.josm.gui.dialogs.relation.sort.WayConnectionType;
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35 | import org.openstreetmap.josm.gui.dialogs.relation.sort.WayConnectionTypeCalculator;
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36 | import org.openstreetmap.josm.gui.layer.GpxLayer;
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37 | import org.openstreetmap.josm.gui.layer.Layer;
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38 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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39 | import org.openstreetmap.josm.tools.SubclassFilteredCollection;
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40 |
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41 | /**
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42 | * Exports the current relation to a single GPX track,
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43 | * currently for type=route and type=superroute relations only.
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44 | *
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45 | * @since 13210
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46 | */
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47 | public class ExportRelationToGpxAction extends GpxExportAction
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48 | implements OsmPrimitiveAction {
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49 |
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50 | /** Enumeration of export variants */
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51 | public enum Mode {
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52 | /** concatenate members from first to last element */
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53 | FROM_FIRST_MEMBER,
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54 | /** concatenate members from last to first element */
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55 | FROM_LAST_MEMBER,
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56 | /** export to GPX layer and add to LayerManager */
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57 | TO_LAYER,
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58 | /** export to GPX file and open FileChooser */
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59 | TO_FILE
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60 | }
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61 |
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62 | /** Mode of this ExportToGpxAction */
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63 | protected final EnumSet<Mode> mode;
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64 |
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65 | /** Primitives this action works on */
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66 | protected Collection<Relation> relations = Collections.<Relation>emptySet();
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67 |
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68 | /** Construct a new ExportRelationToGpxAction with default mode */
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69 | public ExportRelationToGpxAction() {
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70 | this(EnumSet.of(FROM_FIRST_MEMBER, TO_FILE));
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71 | }
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72 |
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73 | /**
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74 | * Constructs a new {@code ExportRelationToGpxAction}
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75 | *
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76 | * @param mode which mode to use, see {@code ExportRelationToGpxAction.Mode}
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77 | */
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78 | public ExportRelationToGpxAction(EnumSet<Mode> mode) {
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79 | super(name(mode), mode.contains(TO_FILE) ? "exportgpx" : "dialogs/layerlist", tooltip(mode),
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80 | null, false, null, false);
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81 | putValue("help", ht("/Action/ExportRelationToGpx"));
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82 | this.mode = mode;
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83 | }
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84 |
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85 | private static String name(EnumSet<Mode> mode) {
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86 | if (mode.contains(TO_FILE)) {
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87 | if (mode.contains(FROM_FIRST_MEMBER)) {
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88 | return tr("Export GPX file starting from first member");
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89 | } else {
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90 | return tr("Export GPX file starting from last member");
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91 | }
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92 | } else {
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93 | if (mode.contains(FROM_FIRST_MEMBER)) {
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94 | return tr("Convert to GPX layer starting from first member");
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95 | } else {
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96 | return tr("Convert to GPX layer starting from last member");
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97 | }
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98 | }
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99 | }
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100 |
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101 | private static String tooltip(EnumSet<Mode> mode) {
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102 | if (mode.contains(FROM_FIRST_MEMBER)) {
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103 | return tr("Flatten this relation to a single gpx track recursively, " +
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104 | "starting with the first member, successively continuing to the last.");
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105 | } else {
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106 | return tr("Flatten this relation to a single gpx track recursively, " +
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107 | "starting with the last member, successively continuing to the first.");
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108 | }
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109 | }
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110 |
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111 | private static final class BidiIterableList {
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112 | private final List<RelationMember> l;
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113 |
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114 | private BidiIterableList(List<RelationMember> l) {
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115 | this.l = l;
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116 | }
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117 |
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118 | public Iterator<RelationMember> iterator() {
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119 | return l.iterator();
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120 | }
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121 |
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122 | public Iterator<RelationMember> reverseIterator() {
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123 | ListIterator<RelationMember> li = l.listIterator(l.size());
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124 | return new Iterator<RelationMember>() {
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125 | @Override
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126 | public boolean hasNext() {
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127 | return li.hasPrevious();
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128 | }
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129 |
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130 | @Override
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131 | public RelationMember next() {
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132 | return li.previous();
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133 | }
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134 |
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135 | @Override
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136 | public void remove() {
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137 | li.remove();
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138 | }
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139 | };
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140 | }
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141 | }
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142 |
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143 | @Override
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144 | protected Layer getLayer() {
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145 | List<RelationMember> flat = new ArrayList<>();
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146 |
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147 | List<RelationMember> init = new ArrayList<>();
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148 | relations.forEach(t -> init.add(new RelationMember("", t)));
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149 | BidiIterableList l = new BidiIterableList(init);
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150 |
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151 | Stack<Iterator<RelationMember>> stack = new Stack<>();
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152 | stack.push(mode.contains(FROM_FIRST_MEMBER) ? l.iterator() : l.reverseIterator());
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153 |
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154 | List<Relation> relsFound = new ArrayList<>();
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155 | do {
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156 | Iterator<RelationMember> i = stack.peek();
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157 | if (!i.hasNext())
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158 | stack.pop();
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159 | while (i.hasNext()) {
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160 | RelationMember m = i.next();
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161 | if (m.isRelation() && !m.getRelation().isIncomplete()) {
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162 | l = new BidiIterableList(m.getRelation().getMembers());
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163 | stack.push(mode.contains(FROM_FIRST_MEMBER) ? l.iterator() : l.reverseIterator());
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164 | relsFound.add(m.getRelation());
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165 | break;
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166 | }
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167 | if (m.isWay()) {
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168 | flat.add(m);
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169 | }
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170 | }
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171 | } while (!stack.isEmpty());
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172 |
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173 | GpxData gpxData = new GpxData();
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174 | String layerName = " (GPX export)";
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175 | long time = System.currentTimeMillis()-24*3600*1000;
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176 |
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177 | if (!flat.isEmpty()) {
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178 | Map<String, Object> trkAttr = new HashMap<>();
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179 | Collection<Collection<WayPoint>> trk = new ArrayList<>();
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180 | List<WayPoint> trkseg = new ArrayList<>();
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181 | trk.add(trkseg);
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182 |
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183 | List<WayConnectionType> wct = new WayConnectionTypeCalculator().updateLinks(flat);
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184 | final HashMap<String, Integer> names = new HashMap<>();
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185 | for (int i = 0; i < flat.size(); i++) {
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186 | if (!wct.get(i).isOnewayLoopBackwardPart) {
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187 | if (!wct.get(i).direction.isRoundabout()) {
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188 | if (!wct.get(i).linkPrev && !trkseg.isEmpty()) {
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189 | gpxData.addTrack(new ImmutableGpxTrack(trk, trkAttr));
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190 | trkAttr.clear();
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191 | trk.clear();
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192 | trkseg.clear();
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193 | trk.add(trkseg);
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194 | }
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195 | if (trkAttr.isEmpty()) {
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196 | Relation r = Way.getParentRelations(Arrays.asList(flat.get(i).getWay()))
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197 | .stream().filter(relsFound::contains).findFirst().orElseGet(null);
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198 | if (r != null)
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199 | trkAttr.put("name", r.getName() != null ? r.getName() : r.getId());
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200 | GpxData.ensureUniqueName(trkAttr, names);
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201 | }
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202 | List<Node> ln = flat.get(i).getWay().getNodes();
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203 | if (wct.get(i).direction == WayConnectionType.Direction.BACKWARD)
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204 | Collections.reverse(ln);
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205 | for (Node n: ln) {
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206 | trkseg.add(OsmDataLayer.nodeToWayPoint(n, time));
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207 | time += 1000;
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208 | }
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209 | }
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210 | }
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211 | }
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212 | gpxData.addTrack(new ImmutableGpxTrack(trk, trkAttr));
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213 |
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214 | String lprefix = relations.iterator().next().getName();
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215 | if (lprefix == null || relations.size() > 1)
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216 | lprefix = tr("Selected Relations");
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217 | layerName = lprefix + layerName;
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218 | }
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219 |
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220 | return new GpxLayer(gpxData, layerName, true);
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221 | }
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222 |
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223 | /**
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224 | *
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225 | * @param e the ActionEvent
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226 | */
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227 | @Override
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228 | public void actionPerformed(ActionEvent e) {
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229 | if (mode.contains(TO_LAYER))
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230 | MainApplication.getLayerManager().addLayer(getLayer());
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231 | if (mode.contains(TO_FILE))
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232 | super.actionPerformed(e);
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233 | }
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234 |
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235 | @Override
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236 | public void setPrimitives(Collection<? extends OsmPrimitive> primitives) {
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237 | relations = Collections.<Relation>emptySet();
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238 | if (primitives != null && !primitives.isEmpty()) {
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239 | relations = new SubclassFilteredCollection<>(primitives,
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240 | r -> r instanceof Relation && r.hasTag("type", Arrays.asList("route", "superroute")));
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241 | }
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242 | updateEnabledState();
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243 | }
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244 |
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245 | @Override
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246 | protected void updateEnabledState() {
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247 | setEnabled(!relations.isEmpty());
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248 | }
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249 | }
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