1 | package org.openstreetmap.josm.io.remotecontrol.handler;
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2 |
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3 | import static org.openstreetmap.josm.tools.I18n.tr;
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4 |
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5 | import java.awt.Point;
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6 | import java.util.ArrayList;
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7 | import java.util.Arrays;
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8 | import java.util.HashMap;
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9 | import java.util.LinkedList;
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10 | import java.util.List;
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11 |
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12 | import org.openstreetmap.josm.Main;
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13 | import org.openstreetmap.josm.actions.AutoScaleAction;
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14 | import org.openstreetmap.josm.command.AddCommand;
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15 | import org.openstreetmap.josm.command.Command;
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16 | import org.openstreetmap.josm.command.SequenceCommand;
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17 | import org.openstreetmap.josm.data.coor.LatLon;
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18 | import org.openstreetmap.josm.data.osm.Node;
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19 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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20 | import org.openstreetmap.josm.data.osm.Way;
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21 | import org.openstreetmap.josm.gui.util.GuiHelper;
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22 | import org.openstreetmap.josm.io.remotecontrol.PermissionPrefWithDefault;
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23 | import org.openstreetmap.josm.io.remotecontrol.handler.RequestHandler.RequestHandlerBadRequestException;
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24 |
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25 | /**
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26 | * Adds a way to the current dataset. For instance, {@code /add_way?way=lat1,lon2;lat2,lon2}.
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27 | */
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28 | public class AddWayHandler extends RequestHandler {
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29 |
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30 | /**
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31 | * The remote control command name used to add a way.
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32 | */
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33 | public static final String command = "add_way";
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34 |
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35 | private final List<LatLon> allCoordinates = new ArrayList<LatLon>();
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36 |
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37 | /**
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38 | * The place to remeber already added nodes (they are reused if needed @since 5845
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39 | */
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40 | HashMap<LatLon, Node> addedNodes;
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41 |
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42 | @Override
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43 | public String[] getMandatoryParams() {
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44 | return new String[]{"way"};
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45 | }
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46 |
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47 | @Override
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48 | protected void handleRequest() throws RequestHandlerErrorException, RequestHandlerBadRequestException {
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49 | GuiHelper.runInEDTAndWait(new Runnable() {
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50 | @Override public void run() {
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51 | addWay();
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52 | }
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53 | });
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54 | // parse parameter addtags=tag1=value1|tag2=value2
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55 | LoadAndZoomHandler.addTags(args);
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56 | }
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57 |
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58 | @Override
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59 | public String getPermissionMessage() {
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60 | return tr("Remote Control has been asked to create a new way.");
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61 | }
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62 |
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63 | @Override
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64 | public PermissionPrefWithDefault getPermissionPref() {
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65 | return PermissionPrefWithDefault.CREATE_OBJECTS;
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66 | }
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67 |
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68 | @Override
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69 | protected void validateRequest() throws RequestHandlerBadRequestException {
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70 | allCoordinates.clear();
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71 | for (String coordinatesString : args.get("way").split(";\\s*")) {
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72 | String[] coordinates = coordinatesString.split(",\\s*", 2);
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73 | if (coordinates.length < 2) {
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74 | throw new RequestHandlerBadRequestException(
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75 | tr("Invalid coordinates: {0}", Arrays.toString(coordinates)));
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76 | }
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77 | try {
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78 | double lat = Double.parseDouble(coordinates[0]);
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79 | double lon = Double.parseDouble(coordinates[1]);
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80 | allCoordinates.add(new LatLon(lat, lon));
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81 | } catch (NumberFormatException e) {
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82 | throw new RequestHandlerBadRequestException("NumberFormatException ("+e.getMessage()+")");
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83 | }
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84 | }
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85 | if (allCoordinates.isEmpty()) {
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86 | throw new RequestHandlerBadRequestException(tr("Empty ways"));
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87 | } else if (allCoordinates.size() == 1) {
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88 | throw new RequestHandlerBadRequestException(tr("One node ways"));
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89 | }
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90 | if (!Main.main.hasEditLayer()) {
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91 | throw new RequestHandlerBadRequestException(tr("There is no layer opened to add way"));
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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 | * Find the node with almost the same ccords in dataset or in already added nodes
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97 | * @since 5845
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98 | **/
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99 | Node findOrCreateNode(LatLon ll, List<Command> commands) {
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100 | Node nd = null;
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101 |
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102 | if (Main.map != null && Main.map.mapView != null) {
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103 | Point p = Main.map.mapView.getPoint(ll);
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104 | nd = Main.map.mapView.getNearestNode(p, OsmPrimitive.isUsablePredicate);
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105 | if (nd!=null && nd.getCoor().greatCircleDistance(ll) > Main.pref.getDouble("remote.tolerance", 0.1)) {
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106 | nd = null; // node is too far
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107 | }
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108 | }
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109 |
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110 | Node prev = null;
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111 | for (LatLon lOld: addedNodes.keySet()) {
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112 | if (lOld.greatCircleDistance(ll) < Main.pref.getDouble("remotecontrol.tolerance", 0.1)) {
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113 | prev = addedNodes.get(lOld);
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114 | break;
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115 | }
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116 | }
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117 |
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118 | if (prev!=null) {
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119 | nd = prev;
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120 | } else if (nd==null) {
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121 | nd = new Node(ll);
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122 | // Now execute the commands to add this node.
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123 | commands.add(new AddCommand(nd));
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124 | addedNodes.put(ll, nd);
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125 | }
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126 | return nd;
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127 | }
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128 |
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129 | /*
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130 | * This function creates the way with given coordinates of nodes
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131 | */
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132 | private void addWay() {
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133 | addedNodes = new HashMap<LatLon, Node>();
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134 | Way way = new Way();
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135 | List<Command> commands = new LinkedList<Command>();
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136 | for (LatLon ll : allCoordinates) {
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137 | Node node = findOrCreateNode(ll, commands);
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138 | way.addNode(node);
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139 | }
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140 | allCoordinates.clear();
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141 | commands.add(new AddCommand(way));
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142 | Main.main.undoRedo.add(new SequenceCommand(tr("Add way"), commands));
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143 | Main.main.getCurrentDataSet().setSelected(way);
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144 | if (PermissionPrefWithDefault.CHANGE_VIEWPORT.isAllowed()) {
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145 | AutoScaleAction.autoScale("selection");
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146 | } else {
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147 | Main.map.mapView.repaint();
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148 | }
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149 | }
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150 | }
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