1 | // License: GPL. See LICENSE file for details.
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2 | package org.openstreetmap.josm.actions.mapmode;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 | import static org.openstreetmap.josm.tools.I18n.trn;
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6 |
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7 | import java.awt.AWTEvent;
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8 | import java.awt.BasicStroke;
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9 | import java.awt.Color;
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10 | import java.awt.Cursor;
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11 | import java.awt.Graphics2D;
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12 | import java.awt.Point;
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13 | import java.awt.Toolkit;
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14 | import java.awt.event.AWTEventListener;
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15 | import java.awt.event.InputEvent;
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16 | import java.awt.event.KeyEvent;
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17 | import java.awt.event.MouseEvent;
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18 | import java.awt.geom.GeneralPath;
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19 | import java.util.ArrayList;
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20 | import java.util.Collection;
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21 | import java.util.Collections;
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22 | import java.util.HashMap;
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23 | import java.util.HashSet;
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24 | import java.util.Iterator;
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25 | import java.util.LinkedList;
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26 | import java.util.List;
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27 | import java.util.Map;
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28 | import java.util.Set;
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29 |
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30 | import javax.swing.JOptionPane;
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31 |
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32 | import org.openstreetmap.josm.Main;
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33 | import org.openstreetmap.josm.command.AddCommand;
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34 | import org.openstreetmap.josm.command.ChangeCommand;
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35 | import org.openstreetmap.josm.command.Command;
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36 | import org.openstreetmap.josm.command.SequenceCommand;
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37 | import org.openstreetmap.josm.data.Bounds;
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38 | import org.openstreetmap.josm.data.SelectionChangedListener;
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39 | import org.openstreetmap.josm.data.coor.EastNorth;
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40 | import org.openstreetmap.josm.data.coor.LatLon;
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41 | import org.openstreetmap.josm.data.osm.DataSet;
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42 | import org.openstreetmap.josm.data.osm.Node;
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43 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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44 | import org.openstreetmap.josm.data.osm.Way;
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45 | import org.openstreetmap.josm.data.osm.WaySegment;
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46 | import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors;
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47 | import org.openstreetmap.josm.gui.MapFrame;
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48 | import org.openstreetmap.josm.gui.MapView;
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49 | import org.openstreetmap.josm.gui.layer.Layer;
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50 | import org.openstreetmap.josm.gui.layer.MapViewPaintable;
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51 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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52 | import org.openstreetmap.josm.tools.ImageProvider;
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53 | import org.openstreetmap.josm.tools.Pair;
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54 | import org.openstreetmap.josm.tools.Shortcut;
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55 | import org.openstreetmap.josm.tools.Utils;
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56 |
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57 | /**
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58 | * Mapmode to add nodes, create and extend ways.
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59 | */
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60 | public class DrawAction extends MapMode implements MapViewPaintable, SelectionChangedListener, AWTEventListener {
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61 | final private Cursor cursorJoinNode;
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62 | final private Cursor cursorJoinWay;
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63 |
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64 | private Node lastUsedNode = null;
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65 | private double PHI=Math.toRadians(90);
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66 |
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67 | private Node mouseOnExistingNode;
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68 | private Set<Way> mouseOnExistingWays = new HashSet<Way>();
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69 | private Set<OsmPrimitive> oldHighlights = new HashSet<OsmPrimitive>();
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70 | private boolean drawHelperLine;
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71 | private boolean wayIsFinished = false;
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72 | private boolean drawTargetHighlight;
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73 | private Point mousePos;
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74 | private Point oldMousePos;
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75 | private Color selectedColor;
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76 |
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77 | private Node currentBaseNode;
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78 | private EastNorth currentMouseEastNorth;
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79 |
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80 | private Shortcut extraShortcut;
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81 |
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82 | public DrawAction(MapFrame mapFrame) {
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83 | super(tr("Draw"), "node/autonode", tr("Draw nodes"),
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84 | Shortcut.registerShortcut("mapmode:draw", tr("Mode: {0}", tr("Draw")), KeyEvent.VK_A, Shortcut.GROUP_EDIT),
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85 | mapFrame, ImageProvider.getCursor("crosshair", null));
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86 |
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87 | // Add extra shortcut N
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88 | extraShortcut = Shortcut.registerShortcut("mapmode:drawfocus", tr("Mode: Draw Focus"), KeyEvent.VK_N, Shortcut.GROUP_EDIT);
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89 | Main.registerActionShortcut(this, extraShortcut);
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90 |
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91 | cursorJoinNode = ImageProvider.getCursor("crosshair", "joinnode");
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92 | cursorJoinWay = ImageProvider.getCursor("crosshair", "joinway");
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93 | }
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94 |
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95 | /**
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96 | * Checks if a map redraw is required and does so if needed. Also updates the status bar
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97 | */
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98 | private void redrawIfRequired() {
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99 | updateStatusLine();
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100 | if ((!drawHelperLine || wayIsFinished) && !drawTargetHighlight) return;
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101 | // update selection to reflect which way being modified
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102 | if (currentBaseNode != null && getCurrentDataSet().getSelected().isEmpty() == false) {
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103 | Way continueFrom = getWayForNode(currentBaseNode);
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104 | if (alt && continueFrom != null) {
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105 | getCurrentDataSet().beginUpdate(); // to prevent the selection listener to screw around with the state
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106 | getCurrentDataSet().addSelected(currentBaseNode);
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107 | getCurrentDataSet().clearSelection(continueFrom);
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108 | getCurrentDataSet().endUpdate();
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109 | } else if (!alt && continueFrom != null) {
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110 | getCurrentDataSet().addSelected(continueFrom);
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111 | }
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112 | }
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113 | Main.map.mapView.repaint();
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114 | }
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115 |
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116 | /**
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117 | * Takes the data from computeHelperLine to determine which ways/nodes should be highlighted
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118 | * (if feature enabled). Also sets the target cursor if appropriate.
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119 | */
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120 | private void addHighlighting() {
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121 | removeHighlighting();
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122 | // if ctrl key is held ("no join"), don't highlight anything
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123 | if (ctrl) {
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124 | Main.map.mapView.setNewCursor(cursor, this);
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125 | return;
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126 | }
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127 |
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128 | // This happens when nothing is selected, but we still want to highlight the "target node"
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129 | if (mouseOnExistingNode == null && getCurrentDataSet().getSelected().size() == 0
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130 | && mousePos != null) {
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131 | mouseOnExistingNode = Main.map.mapView.getNearestNode(mousePos, OsmPrimitive.isSelectablePredicate);
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132 | }
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133 |
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134 | if (mouseOnExistingNode != null) {
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135 | Main.map.mapView.setNewCursor(cursorJoinNode, this);
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136 | // We also need this list for the statusbar help text
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137 | oldHighlights.add(mouseOnExistingNode);
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138 | if(drawTargetHighlight) {
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139 | mouseOnExistingNode.setHighlighted(true);
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140 | }
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141 | return;
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142 | }
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143 |
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144 | // Insert the node into all the nearby way segments
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145 | if (mouseOnExistingWays.size() == 0) {
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146 | Main.map.mapView.setNewCursor(cursor, this);
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147 | return;
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148 | }
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149 |
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150 | Main.map.mapView.setNewCursor(cursorJoinWay, this);
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151 |
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152 | // We also need this list for the statusbar help text
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153 | oldHighlights.addAll(mouseOnExistingWays);
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154 | if (!drawTargetHighlight) return;
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155 | for (Way w : mouseOnExistingWays) {
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156 | w.setHighlighted(true);
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157 | }
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158 | }
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159 |
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160 | /**
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161 | * Removes target highlighting from primitives
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162 | */
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163 | private void removeHighlighting() {
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164 | for(OsmPrimitive prim : oldHighlights) {
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165 | prim.setHighlighted(false);
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166 | }
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167 | oldHighlights = new HashSet<OsmPrimitive>();
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168 | }
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169 |
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170 | @Override public void enterMode() {
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171 | if (!isEnabled())
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172 | return;
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173 | super.enterMode();
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174 | selectedColor =PaintColors.SELECTED.get();
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175 | drawHelperLine = Main.pref.getBoolean("draw.helper-line", true);
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176 | drawTargetHighlight = Main.pref.getBoolean("draw.target-highlight", true);
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177 | wayIsFinished = false;
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178 |
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179 | Main.map.mapView.addMouseListener(this);
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180 | Main.map.mapView.addMouseMotionListener(this);
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181 | Main.map.mapView.addTemporaryLayer(this);
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182 | DataSet.addSelectionListener(this);
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183 |
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184 | try {
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185 | Toolkit.getDefaultToolkit().addAWTEventListener(this, AWTEvent.KEY_EVENT_MASK);
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186 | } catch (SecurityException ex) {
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187 | }
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188 | // would like to but haven't got mouse position yet:
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189 | // computeHelperLine(false, false, false);
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190 | }
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191 |
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192 | @Override public void exitMode() {
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193 | super.exitMode();
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194 | Main.map.mapView.removeMouseListener(this);
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195 | Main.map.mapView.removeMouseMotionListener(this);
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196 | Main.map.mapView.removeTemporaryLayer(this);
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197 | DataSet.removeSelectionListener(this);
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198 | removeHighlighting();
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199 | try {
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200 | Toolkit.getDefaultToolkit().removeAWTEventListener(this);
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201 | } catch (SecurityException ex) {
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202 | }
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203 |
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204 | // when exiting we let everybody know about the currently selected
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205 | // primitives
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206 | //
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207 | DataSet ds = getCurrentDataSet();
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208 | if(ds != null) {
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209 | ds.fireSelectionChanged();
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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 | * redraw to (possibly) get rid of helper line if selection changes.
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215 | */
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216 | public void eventDispatched(AWTEvent event) {
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217 | if(Main.map == null || Main.map.mapView == null || !Main.map.mapView.isActiveLayerDrawable())
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218 | return;
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219 | updateKeyModifiers((InputEvent) event);
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220 | computeHelperLine();
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221 | addHighlighting();
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222 | redrawIfRequired();
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223 | }
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224 | /**
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225 | * redraw to (possibly) get rid of helper line if selection changes.
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226 | */
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227 | public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
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228 | if(!Main.map.mapView.isActiveLayerDrawable())
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229 | return;
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230 | computeHelperLine();
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231 | addHighlighting();
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232 | redrawIfRequired();
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233 | }
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234 |
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235 | private void tryAgain(MouseEvent e) {
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236 | getCurrentDataSet().setSelected();
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237 | mouseReleased(e);
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238 | }
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239 |
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240 | /**
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241 | * This function should be called when the user wishes to finish his current draw action.
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242 | * If Potlatch Style is enabled, it will switch to select tool, otherwise simply disable
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243 | * the helper line until the user chooses to draw something else.
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244 | */
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245 | private void finishDrawing() {
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246 | // let everybody else know about the current selection
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247 | //
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248 | Main.main.getCurrentDataSet().fireSelectionChanged();
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249 | lastUsedNode = null;
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250 | wayIsFinished = true;
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251 | Main.map.selectSelectTool(true);
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252 |
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253 | // Redraw to remove the helper line stub
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254 | computeHelperLine();
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255 | removeHighlighting();
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256 | redrawIfRequired();
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257 | }
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258 |
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259 | /**
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260 | * If user clicked with the left button, add a node at the current mouse
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261 | * position.
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262 | *
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263 | * If in nodeway mode, insert the node into the way.
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264 | */
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265 | @Override public void mouseReleased(MouseEvent e) {
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266 | if (e.getButton() != MouseEvent.BUTTON1)
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267 | return;
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268 | if(!Main.map.mapView.isActiveLayerDrawable())
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269 | return;
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270 | // request focus in order to enable the expected keyboard shortcuts
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271 | //
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272 | Main.map.mapView.requestFocus();
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273 |
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274 | if(e.getClickCount() > 1 && mousePos != null && mousePos.equals(oldMousePos)) {
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275 | // A double click equals "user clicked last node again, finish way"
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276 | // Change draw tool only if mouse position is nearly the same, as
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277 | // otherwise fast clicks will count as a double click
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278 | finishDrawing();
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279 | return;
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280 | }
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281 | oldMousePos = mousePos;
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282 |
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283 | // we copy ctrl/alt/shift from the event just in case our global
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284 | // AWTEvent didn't make it through the security manager. Unclear
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285 | // if that can ever happen but better be safe.
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286 | updateKeyModifiers(e);
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287 | mousePos = e.getPoint();
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288 |
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289 | DataSet ds = getCurrentDataSet();
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290 | Collection<OsmPrimitive> selection = new ArrayList<OsmPrimitive>(ds.getSelected());
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291 | Collection<Command> cmds = new LinkedList<Command>();
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292 | Collection<OsmPrimitive> newSelection = new LinkedList<OsmPrimitive>(ds.getSelected());
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293 |
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294 | ArrayList<Way> reuseWays = new ArrayList<Way>(),
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295 | replacedWays = new ArrayList<Way>();
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296 | boolean newNode = false;
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297 | Node n = null;
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298 |
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299 | if (!ctrl) {
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300 | n = Main.map.mapView.getNearestNode(mousePos, OsmPrimitive.isSelectablePredicate);
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301 | }
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302 |
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303 | if (n != null) {
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304 | // user clicked on node
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305 | if (selection.isEmpty() || wayIsFinished) {
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306 | // select the clicked node and do nothing else
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307 | // (this is just a convenience option so that people don't
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308 | // have to switch modes)
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309 |
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310 | getCurrentDataSet().setSelected(n);
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311 | // If we extend/continue an existing way, select it already now to make it obvious
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312 | Way continueFrom = getWayForNode(n);
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313 | if (continueFrom != null) {
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314 | getCurrentDataSet().addSelected(continueFrom);
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315 | }
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316 |
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317 | // The user explicitly selected a node, so let him continue drawing
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318 | wayIsFinished = false;
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319 | return;
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320 | }
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321 | } else {
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322 | // no node found in clicked area
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323 | n = new Node(Main.map.mapView.getLatLon(e.getX(), e.getY()));
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324 | if (n.getCoor().isOutSideWorld()) {
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325 | JOptionPane.showMessageDialog(
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326 | Main.parent,
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327 | tr("Cannot add a node outside of the world."),
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328 | tr("Warning"),
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329 | JOptionPane.WARNING_MESSAGE
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330 | );
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331 | return;
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332 | }
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333 | newNode = true;
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334 |
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335 | cmds.add(new AddCommand(n));
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336 |
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337 | if (!ctrl) {
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338 | // Insert the node into all the nearby way segments
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339 | List<WaySegment> wss = Main.map.mapView.getNearestWaySegments(e.getPoint(), OsmPrimitive.isSelectablePredicate);
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340 | Map<Way, List<Integer>> insertPoints = new HashMap<Way, List<Integer>>();
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341 | for (WaySegment ws : wss) {
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342 | List<Integer> is;
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343 | if (insertPoints.containsKey(ws.way)) {
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344 | is = insertPoints.get(ws.way);
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345 | } else {
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346 | is = new ArrayList<Integer>();
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347 | insertPoints.put(ws.way, is);
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348 | }
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349 |
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350 | is.add(ws.lowerIndex);
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351 | }
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352 |
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353 | Set<Pair<Node,Node>> segSet = new HashSet<Pair<Node,Node>>();
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354 |
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355 | for (Map.Entry<Way, List<Integer>> insertPoint : insertPoints.entrySet()) {
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356 | Way w = insertPoint.getKey();
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357 | List<Integer> is = insertPoint.getValue();
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358 |
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359 | Way wnew = new Way(w);
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360 |
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361 | pruneSuccsAndReverse(is);
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362 | for (int i : is) {
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363 | segSet.add(
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364 | Pair.sort(new Pair<Node,Node>(w.getNode(i), w.getNode(i+1))));
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365 | }
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366 | for (int i : is) {
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367 | wnew.addNode(i + 1, n);
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368 | }
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369 |
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370 | // If ALT is pressed, a new way should be created and that new way should get
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371 | // selected. This works everytime unless the ways the nodes get inserted into
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372 | // are already selected. This is the case when creating a self-overlapping way
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373 | // but pressing ALT prevents this. Therefore we must de-select the way manually
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374 | // here so /only/ the new way will be selected after this method finishes.
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375 | if(alt) {
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376 | newSelection.add(insertPoint.getKey());
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377 | }
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378 |
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379 | cmds.add(new ChangeCommand(insertPoint.getKey(), wnew));
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380 | replacedWays.add(insertPoint.getKey());
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381 | reuseWays.add(wnew);
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382 | }
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383 |
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384 | adjustNode(segSet, n);
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385 | }
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386 | }
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387 |
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388 | // This part decides whether or not a "segment" (i.e. a connection) is made to an
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389 | // existing node.
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390 |
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391 | // For a connection to be made, the user must either have a node selected (connection
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392 | // is made to that node), or he must have a way selected *and* one of the endpoints
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393 | // of that way must be the last used node (connection is made to last used node), or
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394 | // he must have a way and a node selected (connection is made to the selected node).
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395 |
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396 | // If the above does not apply, the selection is cleared and a new try is started
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397 |
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398 | boolean extendedWay = false;
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399 | boolean wayIsFinishedTemp = wayIsFinished;
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400 | wayIsFinished = false;
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401 |
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402 | // don't draw lines if shift is held
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403 | if (selection.size() > 0 && !shift) {
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404 | Node selectedNode = null;
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405 | Way selectedWay = null;
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406 |
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407 | for (OsmPrimitive p : selection) {
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408 | if (p instanceof Node) {
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409 | if (selectedNode != null) {
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410 | // Too many nodes selected to do something useful
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411 | tryAgain(e);
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412 | return;
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413 | }
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414 | selectedNode = (Node) p;
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415 | } else if (p instanceof Way) {
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416 | if (selectedWay != null) {
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417 | // Too many ways selected to do something useful
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418 | tryAgain(e);
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419 | return;
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420 | }
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421 | selectedWay = (Way) p;
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422 | }
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423 | }
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424 |
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425 | // the node from which we make a connection
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426 | Node n0 = findNodeToContinueFrom(selectedNode, selectedWay);
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427 | // We have a selection but it isn't suitable. Try again.
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428 | if(n0 == null) {
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429 | tryAgain(e);
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430 | return;
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431 | }
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432 | if(!wayIsFinishedTemp){
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433 | if(isSelfContainedWay(selectedWay, n0, n))
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434 | return;
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435 |
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436 | // User clicked last node again, finish way
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437 | if(n0 == n) {
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438 | finishDrawing();
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439 | return;
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440 | }
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441 |
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442 | // Ok we know now that we'll insert a line segment, but will it connect to an
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443 | // existing way or make a new way of its own? The "alt" modifier means that the
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444 | // user wants a new way.
|
---|
445 | Way way = alt ? null : (selectedWay != null) ? selectedWay : getWayForNode(n0);
|
---|
446 | Way wayToSelect;
|
---|
447 |
|
---|
448 | // Don't allow creation of self-overlapping ways
|
---|
449 | if(way != null) {
|
---|
450 | int nodeCount=0;
|
---|
451 | for (Node p : way.getNodes())
|
---|
452 | if(p.equals(n0)) {
|
---|
453 | nodeCount++;
|
---|
454 | }
|
---|
455 | if(nodeCount > 1) {
|
---|
456 | way = null;
|
---|
457 | }
|
---|
458 | }
|
---|
459 |
|
---|
460 | if (way == null) {
|
---|
461 | way = new Way();
|
---|
462 | way.addNode(n0);
|
---|
463 | cmds.add(new AddCommand(way));
|
---|
464 | wayToSelect = way;
|
---|
465 | } else {
|
---|
466 | int i;
|
---|
467 | if ((i = replacedWays.indexOf(way)) != -1) {
|
---|
468 | way = reuseWays.get(i);
|
---|
469 | wayToSelect = way;
|
---|
470 | } else {
|
---|
471 | wayToSelect = way;
|
---|
472 | Way wnew = new Way(way);
|
---|
473 | cmds.add(new ChangeCommand(way, wnew));
|
---|
474 | way = wnew;
|
---|
475 | }
|
---|
476 | }
|
---|
477 |
|
---|
478 | // Connected to a node that's already in the way
|
---|
479 | if(way.containsNode(n)) {
|
---|
480 | wayIsFinished = true;
|
---|
481 | selection.clear();
|
---|
482 | }
|
---|
483 |
|
---|
484 | // Add new node to way
|
---|
485 | if (way.getNode(way.getNodesCount() - 1) == n0) {
|
---|
486 | way.addNode(n);
|
---|
487 | } else {
|
---|
488 | way.addNode(0, n);
|
---|
489 | }
|
---|
490 |
|
---|
491 | extendedWay = true;
|
---|
492 | newSelection.clear();
|
---|
493 | newSelection.add(wayToSelect);
|
---|
494 | }
|
---|
495 | }
|
---|
496 |
|
---|
497 | String title;
|
---|
498 | if (!extendedWay) {
|
---|
499 | if (!newNode)
|
---|
500 | return; // We didn't do anything.
|
---|
501 | else if (reuseWays.isEmpty()) {
|
---|
502 | title = tr("Add node");
|
---|
503 | } else {
|
---|
504 | title = tr("Add node into way");
|
---|
505 | for (Way w : reuseWays) {
|
---|
506 | newSelection.remove(w);
|
---|
507 | }
|
---|
508 | }
|
---|
509 | newSelection.clear();
|
---|
510 | newSelection.add(n);
|
---|
511 | } else if (!newNode) {
|
---|
512 | title = tr("Connect existing way to node");
|
---|
513 | } else if (reuseWays.isEmpty()) {
|
---|
514 | title = tr("Add a new node to an existing way");
|
---|
515 | } else {
|
---|
516 | title = tr("Add node into way and connect");
|
---|
517 | }
|
---|
518 |
|
---|
519 | Command c = new SequenceCommand(title, cmds);
|
---|
520 |
|
---|
521 | Main.main.undoRedo.add(c);
|
---|
522 | if(!wayIsFinished) {
|
---|
523 | lastUsedNode = n;
|
---|
524 | }
|
---|
525 |
|
---|
526 | getCurrentDataSet().setSelected(newSelection);
|
---|
527 |
|
---|
528 | // "viewport following" mode for tracing long features
|
---|
529 | // from aerial imagery or GPS tracks.
|
---|
530 | if (n != null && Main.map.mapView.viewportFollowing) {
|
---|
531 | Main.map.mapView.smoothScrollTo(n.getEastNorth());
|
---|
532 | };
|
---|
533 | computeHelperLine();
|
---|
534 | removeHighlighting();
|
---|
535 | redrawIfRequired();
|
---|
536 | }
|
---|
537 |
|
---|
538 | /**
|
---|
539 | * Prevent creation of ways that look like this: <---->
|
---|
540 | * This happens if users want to draw a no-exit-sideway from the main way like this:
|
---|
541 | * ^
|
---|
542 | * |<---->
|
---|
543 | * |
|
---|
544 | * The solution isn't ideal because the main way will end in the side way, which is bad for
|
---|
545 | * navigation software ("drive straight on") but at least easier to fix. Maybe users will fix
|
---|
546 | * it on their own, too. At least it's better than producing an error.
|
---|
547 | *
|
---|
548 | * @param Way the way to check
|
---|
549 | * @param Node the current node (i.e. the one the connection will be made from)
|
---|
550 | * @param Node the target node (i.e. the one the connection will be made to)
|
---|
551 | * @return Boolean True if this would create a selfcontaining way, false otherwise.
|
---|
552 | */
|
---|
553 | private boolean isSelfContainedWay(Way selectedWay, Node currentNode, Node targetNode) {
|
---|
554 | if(selectedWay != null) {
|
---|
555 | int posn0 = selectedWay.getNodes().indexOf(currentNode);
|
---|
556 | if( posn0 != -1 && // n0 is part of way
|
---|
557 | (posn0 >= 1 && targetNode.equals(selectedWay.getNode(posn0-1))) || // previous node
|
---|
558 | (posn0 < selectedWay.getNodesCount()-1) && targetNode.equals(selectedWay.getNode(posn0+1))) { // next node
|
---|
559 | getCurrentDataSet().setSelected(targetNode);
|
---|
560 | lastUsedNode = targetNode;
|
---|
561 | return true;
|
---|
562 | }
|
---|
563 | }
|
---|
564 |
|
---|
565 | return false;
|
---|
566 | }
|
---|
567 |
|
---|
568 | /**
|
---|
569 | * Finds a node to continue drawing from. Decision is based upon given node and way.
|
---|
570 | * @param selectedNode Currently selected node, may be null
|
---|
571 | * @param selectedWay Currently selected way, may be null
|
---|
572 | * @return Node if a suitable node is found, null otherwise
|
---|
573 | */
|
---|
574 | private Node findNodeToContinueFrom(Node selectedNode, Way selectedWay) {
|
---|
575 | // No nodes or ways have been selected, this occurs when a relation
|
---|
576 | // has been selected or the selection is empty
|
---|
577 | if(selectedNode == null && selectedWay == null)
|
---|
578 | return null;
|
---|
579 |
|
---|
580 | if (selectedNode == null) {
|
---|
581 | if (selectedWay.isFirstLastNode(lastUsedNode))
|
---|
582 | return lastUsedNode;
|
---|
583 |
|
---|
584 | // We have a way selected, but no suitable node to continue from. Start anew.
|
---|
585 | return null;
|
---|
586 | }
|
---|
587 |
|
---|
588 | if (selectedWay == null)
|
---|
589 | return selectedNode;
|
---|
590 |
|
---|
591 | if (selectedWay.isFirstLastNode(selectedNode))
|
---|
592 | return selectedNode;
|
---|
593 |
|
---|
594 | // We have a way and node selected, but it's not at the start/end of the way. Start anew.
|
---|
595 | return null;
|
---|
596 | }
|
---|
597 |
|
---|
598 | @Override public void mouseDragged(MouseEvent e) {
|
---|
599 | mouseMoved(e);
|
---|
600 | }
|
---|
601 |
|
---|
602 | @Override public void mouseMoved(MouseEvent e) {
|
---|
603 | if(!Main.map.mapView.isActiveLayerDrawable())
|
---|
604 | return;
|
---|
605 |
|
---|
606 | // we copy ctrl/alt/shift from the event just in case our global
|
---|
607 | // AWTEvent didn't make it through the security manager. Unclear
|
---|
608 | // if that can ever happen but better be safe.
|
---|
609 | updateKeyModifiers(e);
|
---|
610 | mousePos = e.getPoint();
|
---|
611 |
|
---|
612 | computeHelperLine();
|
---|
613 | addHighlighting();
|
---|
614 | redrawIfRequired();
|
---|
615 | }
|
---|
616 |
|
---|
617 | /**
|
---|
618 | * This method prepares data required for painting the "helper line" from
|
---|
619 | * the last used position to the mouse cursor. It duplicates some code from
|
---|
620 | * mouseReleased() (FIXME).
|
---|
621 | */
|
---|
622 | private void computeHelperLine() {
|
---|
623 | MapView mv = Main.map.mapView;
|
---|
624 | if (mousePos == null) {
|
---|
625 | // Don't draw the line.
|
---|
626 | currentMouseEastNorth = null;
|
---|
627 | currentBaseNode = null;
|
---|
628 | return;
|
---|
629 | }
|
---|
630 |
|
---|
631 | double distance = -1;
|
---|
632 | double angle = -1;
|
---|
633 |
|
---|
634 | Collection<OsmPrimitive> selection = getCurrentDataSet().getSelected();
|
---|
635 |
|
---|
636 | Node selectedNode = null;
|
---|
637 | Way selectedWay = null;
|
---|
638 | Node currentMouseNode = null;
|
---|
639 | mouseOnExistingNode = null;
|
---|
640 | mouseOnExistingWays = new HashSet<Way>();
|
---|
641 |
|
---|
642 | Main.map.statusLine.setAngle(-1);
|
---|
643 | Main.map.statusLine.setHeading(-1);
|
---|
644 | Main.map.statusLine.setDist(-1);
|
---|
645 |
|
---|
646 | if (!ctrl && mousePos != null) {
|
---|
647 | currentMouseNode = mv.getNearestNode(mousePos, OsmPrimitive.isSelectablePredicate);
|
---|
648 | }
|
---|
649 |
|
---|
650 | // We need this for highlighting and we'll only do so if we actually want to re-use
|
---|
651 | // *and* there is no node nearby (because nodes beat ways when re-using)
|
---|
652 | if(!ctrl && currentMouseNode == null) {
|
---|
653 | List<WaySegment> wss = mv.getNearestWaySegments(mousePos, OsmPrimitive.isSelectablePredicate);
|
---|
654 | for(WaySegment ws : wss) {
|
---|
655 | mouseOnExistingWays.add(ws.way);
|
---|
656 | }
|
---|
657 | }
|
---|
658 |
|
---|
659 | if (currentMouseNode != null) {
|
---|
660 | // user clicked on node
|
---|
661 | if (selection.isEmpty()) return;
|
---|
662 | currentMouseEastNorth = currentMouseNode.getEastNorth();
|
---|
663 | mouseOnExistingNode = currentMouseNode;
|
---|
664 | } else {
|
---|
665 | // no node found in clicked area
|
---|
666 | currentMouseEastNorth = mv.getEastNorth(mousePos.x, mousePos.y);
|
---|
667 | }
|
---|
668 |
|
---|
669 | for (OsmPrimitive p : selection) {
|
---|
670 | if (p instanceof Node) {
|
---|
671 | if (selectedNode != null) return;
|
---|
672 | selectedNode = (Node) p;
|
---|
673 | } else if (p instanceof Way) {
|
---|
674 | if (selectedWay != null) return;
|
---|
675 | selectedWay = (Way) p;
|
---|
676 | }
|
---|
677 | }
|
---|
678 |
|
---|
679 | // the node from which we make a connection
|
---|
680 | currentBaseNode = null;
|
---|
681 | Node previousNode = null;
|
---|
682 |
|
---|
683 | if (selectedNode == null) {
|
---|
684 | if (selectedWay == null)
|
---|
685 | return;
|
---|
686 | if (selectedWay.isFirstLastNode(lastUsedNode)) {
|
---|
687 | currentBaseNode = lastUsedNode;
|
---|
688 | if (lastUsedNode == selectedWay.getNode(selectedWay.getNodesCount()-1) && selectedWay.getNodesCount() > 1) {
|
---|
689 | previousNode = selectedWay.getNode(selectedWay.getNodesCount()-2);
|
---|
690 | }
|
---|
691 | }
|
---|
692 | } else if (selectedWay == null) {
|
---|
693 | currentBaseNode = selectedNode;
|
---|
694 | } else {
|
---|
695 | if (selectedNode == selectedWay.getNode(0) || selectedNode == selectedWay.getNode(selectedWay.getNodesCount()-1)) {
|
---|
696 | currentBaseNode = selectedNode;
|
---|
697 | }
|
---|
698 | }
|
---|
699 |
|
---|
700 | if (currentBaseNode == null || currentBaseNode == currentMouseNode)
|
---|
701 | return; // Don't create zero length way segments.
|
---|
702 |
|
---|
703 | // find out the distance, in metres, between the base point and the mouse cursor
|
---|
704 | LatLon mouseLatLon = mv.getProjection().eastNorth2latlon(currentMouseEastNorth);
|
---|
705 | distance = currentBaseNode.getCoor().greatCircleDistance(mouseLatLon);
|
---|
706 |
|
---|
707 | double hdg = Math.toDegrees(currentBaseNode.getEastNorth()
|
---|
708 | .heading(currentMouseEastNorth));
|
---|
709 | if (previousNode != null) {
|
---|
710 | angle = hdg - Math.toDegrees(previousNode.getEastNorth()
|
---|
711 | .heading(currentBaseNode.getEastNorth()));
|
---|
712 | angle += angle < 0 ? 360 : 0;
|
---|
713 | }
|
---|
714 |
|
---|
715 | Main.map.statusLine.setAngle(angle);
|
---|
716 | Main.map.statusLine.setHeading(hdg);
|
---|
717 | Main.map.statusLine.setDist(distance);
|
---|
718 | // Now done in redrawIfRequired()
|
---|
719 | //updateStatusLine();
|
---|
720 | }
|
---|
721 |
|
---|
722 | /**
|
---|
723 | * Repaint on mouse exit so that the helper line goes away.
|
---|
724 | */
|
---|
725 | @Override public void mouseExited(MouseEvent e) {
|
---|
726 | if(!Main.map.mapView.isActiveLayerDrawable())
|
---|
727 | return;
|
---|
728 | mousePos = e.getPoint();
|
---|
729 | Main.map.mapView.repaint();
|
---|
730 | }
|
---|
731 |
|
---|
732 | /**
|
---|
733 | * @return If the node is the end of exactly one way, return this.
|
---|
734 | * <code>null</code> otherwise.
|
---|
735 | */
|
---|
736 | public Way getWayForNode(Node n) {
|
---|
737 | Way way = null;
|
---|
738 | for (Way w : Utils.filteredCollection(n.getReferrers(), Way.class)) {
|
---|
739 | if (!w.isUsable() || w.getNodesCount() < 1) {
|
---|
740 | continue;
|
---|
741 | }
|
---|
742 | Node firstNode = w.getNode(0);
|
---|
743 | Node lastNode = w.getNode(w.getNodesCount() - 1);
|
---|
744 | if ((firstNode == n || lastNode == n) && (firstNode != lastNode)) {
|
---|
745 | if (way != null)
|
---|
746 | return null;
|
---|
747 | way = w;
|
---|
748 | }
|
---|
749 | }
|
---|
750 | return way;
|
---|
751 | }
|
---|
752 |
|
---|
753 | public Node getCurrentBaseNode() {
|
---|
754 | return currentBaseNode;
|
---|
755 | }
|
---|
756 |
|
---|
757 | private static void pruneSuccsAndReverse(List<Integer> is) {
|
---|
758 | //if (is.size() < 2) return;
|
---|
759 |
|
---|
760 | HashSet<Integer> is2 = new HashSet<Integer>();
|
---|
761 | for (int i : is) {
|
---|
762 | if (!is2.contains(i - 1) && !is2.contains(i + 1)) {
|
---|
763 | is2.add(i);
|
---|
764 | }
|
---|
765 | }
|
---|
766 | is.clear();
|
---|
767 | is.addAll(is2);
|
---|
768 | Collections.sort(is);
|
---|
769 | Collections.reverse(is);
|
---|
770 | }
|
---|
771 |
|
---|
772 | /**
|
---|
773 | * Adjusts the position of a node to lie on a segment (or a segment
|
---|
774 | * intersection).
|
---|
775 | *
|
---|
776 | * If one or more than two segments are passed, the node is adjusted
|
---|
777 | * to lie on the first segment that is passed.
|
---|
778 | *
|
---|
779 | * If two segments are passed, the node is adjusted to be at their
|
---|
780 | * intersection.
|
---|
781 | *
|
---|
782 | * No action is taken if no segments are passed.
|
---|
783 | *
|
---|
784 | * @param segs the segments to use as a reference when adjusting
|
---|
785 | * @param n the node to adjust
|
---|
786 | */
|
---|
787 | private static void adjustNode(Collection<Pair<Node,Node>> segs, Node n) {
|
---|
788 |
|
---|
789 | switch (segs.size()) {
|
---|
790 | case 0:
|
---|
791 | return;
|
---|
792 | case 2:
|
---|
793 | // This computes the intersection between
|
---|
794 | // the two segments and adjusts the node position.
|
---|
795 | Iterator<Pair<Node,Node>> i = segs.iterator();
|
---|
796 | Pair<Node,Node> seg = i.next();
|
---|
797 | EastNorth A = seg.a.getEastNorth();
|
---|
798 | EastNorth B = seg.b.getEastNorth();
|
---|
799 | seg = i.next();
|
---|
800 | EastNorth C = seg.a.getEastNorth();
|
---|
801 | EastNorth D = seg.b.getEastNorth();
|
---|
802 |
|
---|
803 | double u=det(B.east() - A.east(), B.north() - A.north(), C.east() - D.east(), C.north() - D.north());
|
---|
804 |
|
---|
805 | // Check for parallel segments and do nothing if they are
|
---|
806 | // In practice this will probably only happen when a way has been duplicated
|
---|
807 |
|
---|
808 | if (u == 0) return;
|
---|
809 |
|
---|
810 | // q is a number between 0 and 1
|
---|
811 | // It is the point in the segment where the intersection occurs
|
---|
812 | // if the segment is scaled to lenght 1
|
---|
813 |
|
---|
814 | double q = det(B.north() - C.north(), B.east() - C.east(), D.north() - C.north(), D.east() - C.east()) / u;
|
---|
815 | EastNorth intersection = new EastNorth(
|
---|
816 | B.east() + q * (A.east() - B.east()),
|
---|
817 | B.north() + q * (A.north() - B.north()));
|
---|
818 |
|
---|
819 | int snapToIntersectionThreshold
|
---|
820 | = Main.pref.getInteger("edit.snap-intersection-threshold",10);
|
---|
821 |
|
---|
822 | // only adjust to intersection if within snapToIntersectionThreshold pixel of mouse click; otherwise
|
---|
823 | // fall through to default action.
|
---|
824 | // (for semi-parallel lines, intersection might be miles away!)
|
---|
825 | if (Main.map.mapView.getPoint(n).distance(Main.map.mapView.getPoint(intersection)) < snapToIntersectionThreshold) {
|
---|
826 | n.setEastNorth(intersection);
|
---|
827 | return;
|
---|
828 | }
|
---|
829 |
|
---|
830 | default:
|
---|
831 | EastNorth P = n.getEastNorth();
|
---|
832 | seg = segs.iterator().next();
|
---|
833 | A = seg.a.getEastNorth();
|
---|
834 | B = seg.b.getEastNorth();
|
---|
835 | double a = P.distanceSq(B);
|
---|
836 | double b = P.distanceSq(A);
|
---|
837 | double c = A.distanceSq(B);
|
---|
838 | q = (a - b + c) / (2*c);
|
---|
839 | n.setEastNorth(new EastNorth(B.east() + q * (A.east() - B.east()), B.north() + q * (A.north() - B.north())));
|
---|
840 | }
|
---|
841 | }
|
---|
842 |
|
---|
843 | // helper for adjustNode
|
---|
844 | static double det(double a, double b, double c, double d) {
|
---|
845 | return a * d - b * c;
|
---|
846 | }
|
---|
847 |
|
---|
848 | public void paint(Graphics2D g, MapView mv, Bounds box) {
|
---|
849 | if (!drawHelperLine || wayIsFinished || shift) return;
|
---|
850 |
|
---|
851 | // sanity checks
|
---|
852 | if (Main.map.mapView == null) return;
|
---|
853 | if (mousePos == null) return;
|
---|
854 |
|
---|
855 | // don't draw line if we don't know where from or where to
|
---|
856 | if (currentBaseNode == null || currentMouseEastNorth == null) return;
|
---|
857 |
|
---|
858 | // don't draw line if mouse is outside window
|
---|
859 | if (!Main.map.mapView.getBounds().contains(mousePos)) return;
|
---|
860 |
|
---|
861 | Graphics2D g2 = g;
|
---|
862 | g2.setColor(selectedColor);
|
---|
863 | g2.setStroke(new BasicStroke(3, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
|
---|
864 | GeneralPath b = new GeneralPath();
|
---|
865 | Point p1=mv.getPoint(currentBaseNode);
|
---|
866 | Point p2=mv.getPoint(currentMouseEastNorth);
|
---|
867 |
|
---|
868 | double t = Math.atan2(p2.y-p1.y, p2.x-p1.x) + Math.PI;
|
---|
869 |
|
---|
870 | b.moveTo(p1.x,p1.y); b.lineTo(p2.x, p2.y);
|
---|
871 |
|
---|
872 | // if alt key is held ("start new way"), draw a little perpendicular line
|
---|
873 | if (alt) {
|
---|
874 | b.moveTo((int)(p1.x + 8*Math.cos(t+PHI)), (int)(p1.y + 8*Math.sin(t+PHI)));
|
---|
875 | b.lineTo((int)(p1.x + 8*Math.cos(t-PHI)), (int)(p1.y + 8*Math.sin(t-PHI)));
|
---|
876 | }
|
---|
877 |
|
---|
878 | g2.draw(b);
|
---|
879 | g2.setStroke(new BasicStroke(1));
|
---|
880 | }
|
---|
881 |
|
---|
882 | @Override public String getModeHelpText() {
|
---|
883 | String rv = "";
|
---|
884 | /*
|
---|
885 | * No modifiers: all (Connect, Node Re-Use, Auto-Weld)
|
---|
886 | * CTRL: disables node re-use, auto-weld
|
---|
887 | * Shift: do not make connection
|
---|
888 | * ALT: make connection but start new way in doing so
|
---|
889 | */
|
---|
890 |
|
---|
891 | /*
|
---|
892 | * Status line text generation is split into two parts to keep it maintainable.
|
---|
893 | * First part looks at what will happen to the new node inserted on click and
|
---|
894 | * the second part will look if a connection is made or not.
|
---|
895 | *
|
---|
896 | * Note that this help text is not absolutely accurate as it doesn't catch any special
|
---|
897 | * cases (e.g. when preventing <---> ways). The only special that it catches is when
|
---|
898 | * a way is about to be finished.
|
---|
899 | *
|
---|
900 | * First check what happens to the new node.
|
---|
901 | */
|
---|
902 |
|
---|
903 | // oldHighlights stores the current highlights. If this
|
---|
904 | // list is empty we can assume that we won't do any joins
|
---|
905 | if (ctrl || oldHighlights.isEmpty()) {
|
---|
906 | rv = tr("Create new node.");
|
---|
907 | } else {
|
---|
908 | // oldHighlights may store a node or way, check if it's a node
|
---|
909 | OsmPrimitive x = oldHighlights.iterator().next();
|
---|
910 | if (x instanceof Node) {
|
---|
911 | rv = tr("Select node under cursor.");
|
---|
912 | } else {
|
---|
913 | rv = trn("Insert new node into way.", "Insert new node into {0} ways.",
|
---|
914 | oldHighlights.size(), oldHighlights.size());
|
---|
915 | }
|
---|
916 | }
|
---|
917 |
|
---|
918 | /*
|
---|
919 | * Check whether a connection will be made
|
---|
920 | */
|
---|
921 | if (currentBaseNode != null && !wayIsFinished) {
|
---|
922 | if (alt) {
|
---|
923 | rv += " " + tr("Start new way from last node.");
|
---|
924 | } else {
|
---|
925 | rv += " " + tr("Continue way from last node.");
|
---|
926 | }
|
---|
927 | }
|
---|
928 |
|
---|
929 | Node n = mouseOnExistingNode;
|
---|
930 | /*
|
---|
931 | * Handle special case: Highlighted node == selected node => finish drawing
|
---|
932 | */
|
---|
933 | if (n != null && getCurrentDataSet() != null && getCurrentDataSet().getSelectedNodes().contains(n)) {
|
---|
934 | if (wayIsFinished) {
|
---|
935 | rv = tr("Select node under cursor.");
|
---|
936 | } else {
|
---|
937 | rv = tr("Finish drawing.");
|
---|
938 | }
|
---|
939 | }
|
---|
940 |
|
---|
941 | /*
|
---|
942 | * Handle special case: Self-Overlapping or closing way
|
---|
943 | */
|
---|
944 | if (getCurrentDataSet() != null && getCurrentDataSet().getSelectedWays().size() > 0 && !wayIsFinished && !alt) {
|
---|
945 | Way w = getCurrentDataSet().getSelectedWays().iterator().next();
|
---|
946 | for (Node m : w.getNodes()) {
|
---|
947 | if (m.equals(mouseOnExistingNode) || mouseOnExistingWays.contains(w)) {
|
---|
948 | rv += " " + tr("Finish drawing.");
|
---|
949 | break;
|
---|
950 | }
|
---|
951 | }
|
---|
952 | }
|
---|
953 | return rv;
|
---|
954 | }
|
---|
955 |
|
---|
956 | @Override public boolean layerIsSupported(Layer l) {
|
---|
957 | return l instanceof OsmDataLayer;
|
---|
958 | }
|
---|
959 |
|
---|
960 | @Override
|
---|
961 | protected void updateEnabledState() {
|
---|
962 | setEnabled(getEditLayer() != null);
|
---|
963 | }
|
---|
964 |
|
---|
965 | @Override
|
---|
966 | public void destroy() {
|
---|
967 | super.destroy();
|
---|
968 | Main.unregisterActionShortcut(extraShortcut);
|
---|
969 | }
|
---|
970 | }
|
---|