| 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 java.awt.*; |
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| 5 | import static org.openstreetmap.josm.gui.help.HelpUtil.ht; |
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| 6 | import static org.openstreetmap.josm.tools.I18n.marktr; |
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| 7 | import static org.openstreetmap.josm.tools.I18n.tr; |
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| 8 | import static org.openstreetmap.josm.tools.I18n.trn; |
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| 9 | |
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| 10 | import java.awt.event.AWTEventListener; |
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| 11 | import java.awt.event.ActionEvent; |
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| 12 | import java.awt.event.ActionListener; |
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| 13 | import java.awt.event.InputEvent; |
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| 14 | import java.awt.event.KeyEvent; |
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| 15 | import java.awt.event.MouseEvent; |
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| 16 | import java.awt.event.MouseListener; |
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| 17 | import java.awt.geom.GeneralPath; |
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| 18 | import java.util.ArrayList; |
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| 19 | import java.util.Arrays; |
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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 | import java.util.TreeSet; |
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| 30 | |
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| 31 | import javax.swing.*; |
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| 32 | |
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| 33 | import org.openstreetmap.josm.Main; |
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| 34 | import org.openstreetmap.josm.actions.JosmAction; |
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| 35 | import org.openstreetmap.josm.command.AddCommand; |
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| 36 | import org.openstreetmap.josm.command.ChangeCommand; |
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| 37 | import org.openstreetmap.josm.command.Command; |
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| 38 | import org.openstreetmap.josm.command.SequenceCommand; |
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| 39 | import org.openstreetmap.josm.data.Bounds; |
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| 40 | import org.openstreetmap.josm.data.SelectionChangedListener; |
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| 41 | import org.openstreetmap.josm.data.coor.EastNorth; |
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| 42 | import org.openstreetmap.josm.data.coor.LatLon; |
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| 43 | import org.openstreetmap.josm.data.osm.DataSet; |
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| 44 | import org.openstreetmap.josm.data.osm.Node; |
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| 45 | import org.openstreetmap.josm.data.osm.OsmPrimitive; |
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| 46 | import org.openstreetmap.josm.data.osm.Way; |
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| 47 | import org.openstreetmap.josm.data.osm.WaySegment; |
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| 48 | import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors; |
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| 49 | import org.openstreetmap.josm.gui.MainMenu; |
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| 50 | import org.openstreetmap.josm.gui.MapFrame; |
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| 51 | import org.openstreetmap.josm.gui.MapView; |
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| 52 | import org.openstreetmap.josm.gui.layer.Layer; |
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| 53 | import org.openstreetmap.josm.gui.layer.MapViewPaintable; |
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| 54 | import org.openstreetmap.josm.gui.layer.OsmDataLayer; |
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| 55 | import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher; |
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| 56 | import org.openstreetmap.josm.tools.Geometry; |
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| 57 | import org.openstreetmap.josm.tools.ImageProvider; |
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| 58 | import org.openstreetmap.josm.tools.Pair; |
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| 59 | import org.openstreetmap.josm.tools.Shortcut; |
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| 60 | import org.openstreetmap.josm.tools.Utils; |
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| 61 | |
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| 62 | /** |
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| 63 | * Mapmode to add nodes, create and extend ways. |
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| 64 | */ |
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| 65 | public class DrawAction extends MapMode implements MapViewPaintable, SelectionChangedListener, AWTEventListener { |
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| 66 | final private Cursor cursorJoinNode; |
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| 67 | final private Cursor cursorJoinWay; |
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| 68 | |
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| 69 | private Node lastUsedNode = null; |
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| 70 | private double PHI=Math.toRadians(90); |
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| 71 | |
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| 72 | private Node mouseOnExistingNode; |
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| 73 | private Set<Way> mouseOnExistingWays = new HashSet<Way>(); |
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| 74 | // old highlights store which primitives are currently highlighted. This |
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| 75 | // is true, even if target highlighting is disabled since the status bar |
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| 76 | // derives its information from this list as well. |
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| 77 | private Set<OsmPrimitive> oldHighlights = new HashSet<OsmPrimitive>(); |
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| 78 | // new highlights contains a list of primitives that should be highlighted |
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| 79 | // but havenât been so far. The idea is to compare old and new and only |
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| 80 | // repaint if there are changes. |
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| 81 | private Set<OsmPrimitive> newHighlights = new HashSet<OsmPrimitive>(); |
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| 82 | private boolean drawHelperLine; |
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| 83 | private boolean wayIsFinished = false; |
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| 84 | private boolean drawTargetHighlight; |
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| 85 | private Point mousePos; |
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| 86 | private Point oldMousePos; |
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| 87 | private Color selectedColor; |
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| 88 | |
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| 89 | private Node currentBaseNode; |
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| 90 | private Node previousNode; |
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| 91 | private EastNorth currentMouseEastNorth; |
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| 92 | |
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| 93 | private SnapHelper snapHelper = new SnapHelper(); |
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| 94 | |
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| 95 | private Shortcut backspaceShortcut; |
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| 96 | private Shortcut snappingShortcut; |
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| 97 | |
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| 98 | private JCheckBoxMenuItem snapCheckboxMenuItem; |
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| 99 | |
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| 100 | public DrawAction(MapFrame mapFrame) { |
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| 101 | super(tr("Draw"), "node/autonode", tr("Draw nodes"), |
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| 102 | Shortcut.registerShortcut("mapmode:draw", tr("Mode: {0}", tr("Draw")), KeyEvent.VK_A, Shortcut.DIRECT), |
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| 103 | mapFrame, ImageProvider.getCursor("crosshair", null)); |
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| 104 | |
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| 105 | snappingShortcut = Shortcut.registerShortcut("mapmode:drawanglesnapping", |
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| 106 | tr("Mode: Draw Angle snapping"), KeyEvent.VK_TAB, Shortcut.DIRECT); |
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| 107 | addMenuItem(); |
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| 108 | snapHelper.setMenuCheckBox(snapCheckboxMenuItem); |
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| 109 | cursorJoinNode = ImageProvider.getCursor("crosshair", "joinnode"); |
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| 110 | cursorJoinWay = ImageProvider.getCursor("crosshair", "joinway"); |
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| 111 | } |
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| 112 | |
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| 113 | private void addMenuItem() { |
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| 114 | int n=Main.main.menu.editMenu.getItemCount(); |
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| 115 | for (int i=n-1;i>0;i--) { |
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| 116 | JMenuItem item = Main.main.menu.editMenu.getItem(i); |
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| 117 | if (item!=null && item.getAction() !=null && item.getAction() instanceof SnapChangeAction) { |
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| 118 | Main.main.menu.editMenu.remove(i); |
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| 119 | } |
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| 120 | } |
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| 121 | snapCheckboxMenuItem = MainMenu.addWithCheckbox(Main.main.menu.editMenu, new SnapChangeAction(), MainMenu.WINDOW_MENU_GROUP.VOLATILE); |
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| 122 | } |
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| 123 | |
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| 124 | /** |
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| 125 | * Checks if a map redraw is required and does so if needed. Also updates the status bar |
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| 126 | */ |
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| 127 | private boolean redrawIfRequired() { |
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| 128 | updateStatusLine(); |
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| 129 | // repaint required if the helper line is active. |
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| 130 | boolean needsRepaint = drawHelperLine && !wayIsFinished; |
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| 131 | if(drawTargetHighlight) { |
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| 132 | // move newHighlights to oldHighlights; only update changed primitives |
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| 133 | for(OsmPrimitive x : newHighlights) { |
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| 134 | if(oldHighlights.contains(x)) { |
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| 135 | continue; |
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| 136 | } |
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| 137 | x.setHighlighted(true); |
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| 138 | needsRepaint = true; |
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| 139 | } |
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| 140 | oldHighlights.removeAll(newHighlights); |
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| 141 | for(OsmPrimitive x : oldHighlights) { |
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| 142 | x.setHighlighted(false); |
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| 143 | needsRepaint = true; |
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| 144 | } |
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| 145 | } |
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| 146 | // required in order to print correct help text |
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| 147 | oldHighlights = newHighlights; |
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| 148 | |
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| 149 | if (!needsRepaint && !drawTargetHighlight) |
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| 150 | return false; |
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| 151 | |
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| 152 | // update selection to reflect which way being modified |
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| 153 | if (currentBaseNode != null && getCurrentDataSet() != null && getCurrentDataSet().getSelected().isEmpty() == false) { |
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| 154 | Way continueFrom = getWayForNode(currentBaseNode); |
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| 155 | if (alt && continueFrom != null && (!currentBaseNode.isSelected() || continueFrom.isSelected())) { |
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| 156 | getCurrentDataSet().beginUpdate(); // to prevent the selection listener to screw around with the state |
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| 157 | getCurrentDataSet().addSelected(currentBaseNode); |
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| 158 | getCurrentDataSet().clearSelection(continueFrom); |
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| 159 | getCurrentDataSet().endUpdate(); |
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| 160 | needsRepaint = true; |
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| 161 | } else if (!alt && continueFrom != null && !continueFrom.isSelected()) { |
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| 162 | getCurrentDataSet().addSelected(continueFrom); |
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| 163 | needsRepaint = true; |
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| 164 | } |
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| 165 | } |
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| 166 | |
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| 167 | if(needsRepaint) { |
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| 168 | Main.map.mapView.repaint(); |
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| 169 | } |
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| 170 | return needsRepaint; |
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| 171 | } |
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| 172 | |
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| 173 | @Override |
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| 174 | public void enterMode() { |
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| 175 | if (!isEnabled()) |
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| 176 | return; |
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| 177 | super.enterMode(); |
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| 178 | selectedColor =PaintColors.SELECTED.get(); |
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| 179 | drawHelperLine = Main.pref.getBoolean("draw.helper-line", true); |
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| 180 | drawTargetHighlight = Main.pref.getBoolean("draw.target-highlight", true); |
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| 181 | |
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| 182 | // determine if selection is suitable to continue drawing. If it |
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| 183 | // isn't, set wayIsFinished to true to avoid superfluous repaints. |
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| 184 | determineCurrentBaseNodeAndPreviousNode(getCurrentDataSet().getSelected()); |
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| 185 | wayIsFinished = currentBaseNode == null; |
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| 186 | |
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| 187 | snapHelper.init(); |
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| 188 | snapCheckboxMenuItem.getAction().setEnabled(true); |
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| 189 | |
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| 190 | timer = new Timer(0, new ActionListener() { |
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| 191 | @Override |
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| 192 | public void actionPerformed(ActionEvent ae) { |
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| 193 | timer.stop(); |
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| 194 | if (set.remove(releaseEvent.getKeyCode())) { |
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| 195 | doKeyReleaseEvent(releaseEvent); |
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| 196 | } |
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| 197 | } |
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| 198 | |
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| 199 | }); |
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| 200 | Main.map.statusLine.getAnglePanel().addMouseListener(snapHelper.anglePopupListener); |
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| 201 | backspaceShortcut = Shortcut.registerShortcut("mapmode:backspace", |
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| 202 | tr("Backspace in Add mode"), KeyEvent.VK_BACK_SPACE, Shortcut.DIRECT); |
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| 203 | Main.registerActionShortcut(new BackSpaceAction(), backspaceShortcut); |
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| 204 | |
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| 205 | Main.map.mapView.addMouseListener(this); |
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| 206 | Main.map.mapView.addMouseMotionListener(this); |
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| 207 | Main.map.mapView.addTemporaryLayer(this); |
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| 208 | DataSet.addSelectionListener(this); |
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| 209 | |
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| 210 | try { |
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| 211 | Toolkit.getDefaultToolkit().addAWTEventListener(this, AWTEvent.KEY_EVENT_MASK); |
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| 212 | } catch (SecurityException ex) { |
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| 213 | } |
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| 214 | // would like to but haven't got mouse position yet: |
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| 215 | // computeHelperLine(false, false, false); |
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| 216 | } |
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| 217 | |
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| 218 | @Override |
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| 219 | public void exitMode() { |
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| 220 | super.exitMode(); |
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| 221 | Main.map.mapView.removeMouseListener(this); |
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| 222 | Main.map.mapView.removeMouseMotionListener(this); |
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| 223 | Main.map.mapView.removeTemporaryLayer(this); |
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| 224 | DataSet.removeSelectionListener(this); |
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| 225 | Main.unregisterActionShortcut(backspaceShortcut); |
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| 226 | snapHelper.unsetFixedMode(); |
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| 227 | snapCheckboxMenuItem.getAction().setEnabled(false); |
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| 228 | |
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| 229 | Main.map.statusLine.getAnglePanel().removeMouseListener(snapHelper.anglePopupListener); |
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| 230 | Main.map.statusLine.activateAnglePanel(false); |
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| 231 | |
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| 232 | removeHighlighting(); |
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| 233 | try { |
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| 234 | Toolkit.getDefaultToolkit().removeAWTEventListener(this); |
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| 235 | } catch (SecurityException ex) { |
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| 236 | } |
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| 237 | |
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| 238 | // when exiting we let everybody know about the currently selected |
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| 239 | // primitives |
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| 240 | // |
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| 241 | DataSet ds = getCurrentDataSet(); |
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| 242 | if(ds != null) { |
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| 243 | ds.fireSelectionChanged(); |
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| 244 | } |
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| 245 | } |
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| 246 | |
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| 247 | /** |
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| 248 | * redraw to (possibly) get rid of helper line if selection changes. |
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| 249 | */ |
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| 250 | public void eventDispatched(AWTEvent event) { |
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| 251 | if(Main.map == null || Main.map.mapView == null || !Main.map.mapView.isActiveLayerDrawable()) |
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| 252 | return; |
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| 253 | if (event instanceof KeyEvent) { |
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| 254 | KeyEvent e = (KeyEvent) event; |
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| 255 | if (snappingShortcut.isEvent(e) || getShortcut().isEvent(e)) { |
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| 256 | Component focused = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner(); |
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| 257 | if (SwingUtilities.getWindowAncestor(focused) instanceof JFrame) |
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| 258 | processKeyEvent(e); |
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| 259 | } |
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| 260 | } // toggle angle snapping |
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| 261 | updateKeyModifiers((InputEvent) event); |
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| 262 | computeHelperLine(); |
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| 263 | addHighlighting(); |
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| 264 | } |
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| 265 | |
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| 266 | // events for crossplatform key holding processing |
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| 267 | // thanks to http://www.arco.in-berlin.de/keyevent.html |
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| 268 | private final TreeSet<Integer> set = new TreeSet<Integer>(); |
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| 269 | private KeyEvent releaseEvent; |
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| 270 | private Timer timer; |
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| 271 | void processKeyEvent(KeyEvent e) { |
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| 272 | if (!snappingShortcut.isEvent(e) && !getShortcut().isEvent(e)) |
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| 273 | return; |
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| 274 | |
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| 275 | if (e.getID() == KeyEvent.KEY_PRESSED) { |
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| 276 | if (timer.isRunning()) { |
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| 277 | timer.stop(); |
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| 278 | } else if (set.add((e.getKeyCode()))) { |
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| 279 | doKeyPressEvent(e); |
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| 280 | } |
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| 281 | } else if (e.getID() == KeyEvent.KEY_RELEASED) { |
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| 282 | if (timer.isRunning()) { |
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| 283 | timer.stop(); |
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| 284 | if (set.remove(e.getKeyCode())) { |
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| 285 | doKeyReleaseEvent(e); |
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| 286 | } |
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| 287 | } else { |
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| 288 | releaseEvent = e; |
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| 289 | timer.restart(); |
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| 290 | } |
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| 291 | } |
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| 292 | } |
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| 293 | |
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| 294 | private void doKeyPressEvent(KeyEvent e) { |
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| 295 | snapHelper.setFixedMode(); |
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| 296 | computeHelperLine(); |
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| 297 | redrawIfRequired(); |
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| 298 | } |
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| 299 | private void doKeyReleaseEvent(KeyEvent e) { |
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| 300 | snapHelper.unFixOrTurnOff(); |
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| 301 | computeHelperLine(); |
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| 302 | redrawIfRequired(); |
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| 303 | } |
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| 304 | |
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| 305 | /** |
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| 306 | * redraw to (possibly) get rid of helper line if selection changes. |
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| 307 | */ |
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| 308 | public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) { |
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| 309 | if(!Main.map.mapView.isActiveLayerDrawable()) |
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| 310 | return; |
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| 311 | computeHelperLine(); |
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| 312 | addHighlighting(); |
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| 313 | } |
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| 314 | |
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| 315 | private void tryAgain(MouseEvent e) { |
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| 316 | getCurrentDataSet().setSelected(); |
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| 317 | mouseReleased(e); |
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| 318 | } |
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| 319 | |
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| 320 | /** |
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| 321 | * This function should be called when the user wishes to finish his current draw action. |
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| 322 | * If Potlatch Style is enabled, it will switch to select tool, otherwise simply disable |
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| 323 | * the helper line until the user chooses to draw something else. |
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| 324 | */ |
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| 325 | private void finishDrawing() { |
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| 326 | // let everybody else know about the current selection |
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| 327 | // |
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| 328 | Main.main.getCurrentDataSet().fireSelectionChanged(); |
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| 329 | lastUsedNode = null; |
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| 330 | wayIsFinished = true; |
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| 331 | Main.map.selectSelectTool(true); |
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| 332 | snapHelper.noSnapNow(); |
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| 333 | |
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| 334 | // Redraw to remove the helper line stub |
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| 335 | computeHelperLine(); |
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| 336 | removeHighlighting(); |
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| 337 | } |
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| 338 | |
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| 339 | private Point rightClickPressPos; |
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| 340 | |
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| 341 | @Override |
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| 342 | public void mousePressed(MouseEvent e) { |
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| 343 | if (e.getButton() == MouseEvent.BUTTON3) { |
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| 344 | rightClickPressPos = e.getPoint(); |
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| 345 | } |
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| 346 | } |
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| 347 | |
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| 348 | /** |
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| 349 | * If user clicked with the left button, add a node at the current mouse |
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| 350 | * position. |
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| 351 | * |
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| 352 | * If in nodeway mode, insert the node into the way. |
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| 353 | */ |
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| 354 | @Override public void mouseReleased(MouseEvent e) { |
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| 355 | if (e.getButton() == MouseEvent.BUTTON3) { |
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| 356 | Point curMousePos = e.getPoint(); |
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| 357 | if (curMousePos.equals(rightClickPressPos)) { |
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| 358 | WaySegment seg = Main.map.mapView.getNearestWaySegment(curMousePos, OsmPrimitive.isSelectablePredicate); |
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| 359 | if (seg!=null) { |
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| 360 | snapHelper.setBaseSegment(seg); |
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| 361 | computeHelperLine(); |
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| 362 | redrawIfRequired(); |
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| 363 | } |
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| 364 | } |
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| 365 | return; |
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| 366 | } |
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| 367 | if (e.getButton() != MouseEvent.BUTTON1) |
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| 368 | return; |
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| 369 | if(!Main.map.mapView.isActiveLayerDrawable()) |
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| 370 | return; |
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| 371 | // request focus in order to enable the expected keyboard shortcuts |
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| 372 | // |
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| 373 | Main.map.mapView.requestFocus(); |
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| 374 | |
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| 375 | if(e.getClickCount() > 1 && mousePos != null && mousePos.equals(oldMousePos)) { |
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| 376 | // A double click equals "user clicked last node again, finish way" |
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| 377 | // Change draw tool only if mouse position is nearly the same, as |
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| 378 | // otherwise fast clicks will count as a double click |
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| 379 | finishDrawing(); |
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| 380 | return; |
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| 381 | } |
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| 382 | oldMousePos = mousePos; |
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| 383 | |
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| 384 | // we copy ctrl/alt/shift from the event just in case our global |
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| 385 | // AWTEvent didn't make it through the security manager. Unclear |
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| 386 | // if that can ever happen but better be safe. |
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| 387 | updateKeyModifiers(e); |
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| 388 | mousePos = e.getPoint(); |
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| 389 | |
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| 390 | DataSet ds = getCurrentDataSet(); |
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| 391 | Collection<OsmPrimitive> selection = new ArrayList<OsmPrimitive>(ds.getSelected()); |
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| 392 | Collection<Command> cmds = new LinkedList<Command>(); |
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| 393 | Collection<OsmPrimitive> newSelection = new LinkedList<OsmPrimitive>(ds.getSelected()); |
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| 394 | |
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| 395 | ArrayList<Way> reuseWays = new ArrayList<Way>(), |
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| 396 | replacedWays = new ArrayList<Way>(); |
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| 397 | boolean newNode = false; |
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| 398 | Node n = null; |
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| 399 | |
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| 400 | if (!ctrl) { |
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| 401 | n = Main.map.mapView.getNearestNode(mousePos, OsmPrimitive.isSelectablePredicate); |
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| 402 | } |
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| 403 | |
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| 404 | if (n != null && !snapHelper.isActive()) { |
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| 405 | // user clicked on node |
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| 406 | if (selection.isEmpty() || wayIsFinished) { |
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| 407 | // select the clicked node and do nothing else |
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| 408 | // (this is just a convenience option so that people don't |
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| 409 | // have to switch modes) |
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| 410 | |
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| 411 | getCurrentDataSet().setSelected(n); |
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| 412 | // If we extend/continue an existing way, select it already now to make it obvious |
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| 413 | Way continueFrom = getWayForNode(n); |
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| 414 | if (continueFrom != null) { |
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| 415 | getCurrentDataSet().addSelected(continueFrom); |
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| 416 | } |
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| 417 | |
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| 418 | // The user explicitly selected a node, so let him continue drawing |
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| 419 | wayIsFinished = false; |
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| 420 | return; |
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| 421 | } |
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| 422 | } else { |
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| 423 | EastNorth newEN; |
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| 424 | if (n!=null) { |
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| 425 | EastNorth foundPoint = n.getEastNorth(); |
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| 426 | // project found node to snapping line |
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| 427 | newEN = snapHelper.getSnapPoint(foundPoint); |
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| 428 | if (foundPoint.distance(newEN) > 1e-4) { |
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| 429 | n = new Node(newEN); // point != projected, so we create new node |
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| 430 | newNode = true; |
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| 431 | } |
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| 432 | } else { // n==null, no node found in clicked area |
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| 433 | EastNorth mouseEN = Main.map.mapView.getEastNorth(e.getX(), e.getY()); |
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| 434 | newEN = snapHelper.isSnapOn() ? snapHelper.getSnapPoint(mouseEN) : mouseEN; |
|---|
| 435 | n = new Node(newEN); //create node at clicked point |
|---|
| 436 | newNode = true; |
|---|
| 437 | } |
|---|
| 438 | snapHelper.unsetFixedMode(); |
|---|
| 439 | } |
|---|
| 440 | |
|---|
| 441 | if (newNode) { |
|---|
| 442 | if (n.getCoor().isOutSideWorld()) { |
|---|
| 443 | JOptionPane.showMessageDialog( |
|---|
| 444 | Main.parent, |
|---|
| 445 | tr("Cannot add a node outside of the world."), |
|---|
| 446 | tr("Warning"), |
|---|
| 447 | JOptionPane.WARNING_MESSAGE |
|---|
| 448 | ); |
|---|
| 449 | return; |
|---|
| 450 | } |
|---|
| 451 | cmds.add(new AddCommand(n)); |
|---|
| 452 | |
|---|
| 453 | if (!ctrl) { |
|---|
| 454 | // Insert the node into all the nearby way segments |
|---|
| 455 | List<WaySegment> wss = Main.map.mapView.getNearestWaySegments( |
|---|
| 456 | Main.map.mapView.getPoint(n), OsmPrimitive.isSelectablePredicate); |
|---|
| 457 | if (snapHelper.isActive()) { |
|---|
| 458 | tryToMoveNodeOnIntersection(wss,n); |
|---|
| 459 | } |
|---|
| 460 | insertNodeIntoAllNearbySegments(wss, n, newSelection, cmds, replacedWays, reuseWays); |
|---|
| 461 | } |
|---|
| 462 | } |
|---|
| 463 | // now "n" is newly created or reused node that shoud be added to some way |
|---|
| 464 | |
|---|
| 465 | // This part decides whether or not a "segment" (i.e. a connection) is made to an |
|---|
| 466 | // existing node. |
|---|
| 467 | |
|---|
| 468 | // For a connection to be made, the user must either have a node selected (connection |
|---|
| 469 | // is made to that node), or he must have a way selected *and* one of the endpoints |
|---|
| 470 | // of that way must be the last used node (connection is made to last used node), or |
|---|
| 471 | // he must have a way and a node selected (connection is made to the selected node). |
|---|
| 472 | |
|---|
| 473 | // If the above does not apply, the selection is cleared and a new try is started |
|---|
| 474 | |
|---|
| 475 | boolean extendedWay = false; |
|---|
| 476 | boolean wayIsFinishedTemp = wayIsFinished; |
|---|
| 477 | wayIsFinished = false; |
|---|
| 478 | |
|---|
| 479 | // don't draw lines if shift is held |
|---|
| 480 | if (selection.size() > 0 && !shift) { |
|---|
| 481 | Node selectedNode = null; |
|---|
| 482 | Way selectedWay = null; |
|---|
| 483 | |
|---|
| 484 | for (OsmPrimitive p : selection) { |
|---|
| 485 | if (p instanceof Node) { |
|---|
| 486 | if (selectedNode != null) { |
|---|
| 487 | // Too many nodes selected to do something useful |
|---|
| 488 | tryAgain(e); |
|---|
| 489 | return; |
|---|
| 490 | } |
|---|
| 491 | selectedNode = (Node) p; |
|---|
| 492 | } else if (p instanceof Way) { |
|---|
| 493 | if (selectedWay != null) { |
|---|
| 494 | // Too many ways selected to do something useful |
|---|
| 495 | tryAgain(e); |
|---|
| 496 | return; |
|---|
| 497 | } |
|---|
| 498 | selectedWay = (Way) p; |
|---|
| 499 | } |
|---|
| 500 | } |
|---|
| 501 | |
|---|
| 502 | // the node from which we make a connection |
|---|
| 503 | Node n0 = findNodeToContinueFrom(selectedNode, selectedWay); |
|---|
| 504 | // We have a selection but it isn't suitable. Try again. |
|---|
| 505 | if(n0 == null) { |
|---|
| 506 | tryAgain(e); |
|---|
| 507 | return; |
|---|
| 508 | } |
|---|
| 509 | if(!wayIsFinishedTemp){ |
|---|
| 510 | if(isSelfContainedWay(selectedWay, n0, n)) |
|---|
| 511 | return; |
|---|
| 512 | |
|---|
| 513 | // User clicked last node again, finish way |
|---|
| 514 | if(n0 == n) { |
|---|
| 515 | finishDrawing(); |
|---|
| 516 | return; |
|---|
| 517 | } |
|---|
| 518 | |
|---|
| 519 | // Ok we know now that we'll insert a line segment, but will it connect to an |
|---|
| 520 | // existing way or make a new way of its own? The "alt" modifier means that the |
|---|
| 521 | // user wants a new way. |
|---|
| 522 | Way way = alt ? null : (selectedWay != null) ? selectedWay : getWayForNode(n0); |
|---|
| 523 | Way wayToSelect; |
|---|
| 524 | |
|---|
| 525 | // Don't allow creation of self-overlapping ways |
|---|
| 526 | if(way != null) { |
|---|
| 527 | int nodeCount=0; |
|---|
| 528 | for (Node p : way.getNodes()) |
|---|
| 529 | if(p.equals(n0)) { |
|---|
| 530 | nodeCount++; |
|---|
| 531 | } |
|---|
| 532 | if(nodeCount > 1) { |
|---|
| 533 | way = null; |
|---|
| 534 | } |
|---|
| 535 | } |
|---|
| 536 | |
|---|
| 537 | if (way == null) { |
|---|
| 538 | way = new Way(); |
|---|
| 539 | way.addNode(n0); |
|---|
| 540 | cmds.add(new AddCommand(way)); |
|---|
| 541 | wayToSelect = way; |
|---|
| 542 | } else { |
|---|
| 543 | int i; |
|---|
| 544 | if ((i = replacedWays.indexOf(way)) != -1) { |
|---|
| 545 | way = reuseWays.get(i); |
|---|
| 546 | wayToSelect = way; |
|---|
| 547 | } else { |
|---|
| 548 | wayToSelect = way; |
|---|
| 549 | Way wnew = new Way(way); |
|---|
| 550 | cmds.add(new ChangeCommand(way, wnew)); |
|---|
| 551 | way = wnew; |
|---|
| 552 | } |
|---|
| 553 | } |
|---|
| 554 | |
|---|
| 555 | // Connected to a node that's already in the way |
|---|
| 556 | if(way.containsNode(n)) { |
|---|
| 557 | wayIsFinished = true; |
|---|
| 558 | selection.clear(); |
|---|
| 559 | } |
|---|
| 560 | |
|---|
| 561 | // Add new node to way |
|---|
| 562 | if (way.getNode(way.getNodesCount() - 1) == n0) { |
|---|
| 563 | way.addNode(n); |
|---|
| 564 | } else { |
|---|
| 565 | way.addNode(0, n); |
|---|
| 566 | } |
|---|
| 567 | |
|---|
| 568 | extendedWay = true; |
|---|
| 569 | newSelection.clear(); |
|---|
| 570 | newSelection.add(wayToSelect); |
|---|
| 571 | } |
|---|
| 572 | } |
|---|
| 573 | |
|---|
| 574 | String title; |
|---|
| 575 | if (!extendedWay) { |
|---|
| 576 | if (!newNode) |
|---|
| 577 | return; // We didn't do anything. |
|---|
| 578 | else if (reuseWays.isEmpty()) { |
|---|
| 579 | title = tr("Add node"); |
|---|
| 580 | } else { |
|---|
| 581 | title = tr("Add node into way"); |
|---|
| 582 | for (Way w : reuseWays) { |
|---|
| 583 | newSelection.remove(w); |
|---|
| 584 | } |
|---|
| 585 | } |
|---|
| 586 | newSelection.clear(); |
|---|
| 587 | newSelection.add(n); |
|---|
| 588 | } else if (!newNode) { |
|---|
| 589 | title = tr("Connect existing way to node"); |
|---|
| 590 | } else if (reuseWays.isEmpty()) { |
|---|
| 591 | title = tr("Add a new node to an existing way"); |
|---|
| 592 | } else { |
|---|
| 593 | title = tr("Add node into way and connect"); |
|---|
| 594 | } |
|---|
| 595 | |
|---|
| 596 | Command c = new SequenceCommand(title, cmds); |
|---|
| 597 | |
|---|
| 598 | Main.main.undoRedo.add(c); |
|---|
| 599 | if(!wayIsFinished) { |
|---|
| 600 | lastUsedNode = n; |
|---|
| 601 | } |
|---|
| 602 | |
|---|
| 603 | getCurrentDataSet().setSelected(newSelection); |
|---|
| 604 | |
|---|
| 605 | // "viewport following" mode for tracing long features |
|---|
| 606 | // from aerial imagery or GPS tracks. |
|---|
| 607 | if (n != null && Main.map.mapView.viewportFollowing) { |
|---|
| 608 | Main.map.mapView.smoothScrollTo(n.getEastNorth()); |
|---|
| 609 | }; |
|---|
| 610 | computeHelperLine(); |
|---|
| 611 | removeHighlighting(); |
|---|
| 612 | } |
|---|
| 613 | |
|---|
| 614 | private void insertNodeIntoAllNearbySegments(List<WaySegment> wss, Node n, Collection<OsmPrimitive> newSelection, Collection<Command> cmds, ArrayList<Way> replacedWays, ArrayList<Way> reuseWays) { |
|---|
| 615 | Map<Way, List<Integer>> insertPoints = new HashMap<Way, List<Integer>>(); |
|---|
| 616 | for (WaySegment ws : wss) { |
|---|
| 617 | List<Integer> is; |
|---|
| 618 | if (insertPoints.containsKey(ws.way)) { |
|---|
| 619 | is = insertPoints.get(ws.way); |
|---|
| 620 | } else { |
|---|
| 621 | is = new ArrayList<Integer>(); |
|---|
| 622 | insertPoints.put(ws.way, is); |
|---|
| 623 | } |
|---|
| 624 | |
|---|
| 625 | is.add(ws.lowerIndex); |
|---|
| 626 | } |
|---|
| 627 | |
|---|
| 628 | Set<Pair<Node,Node>> segSet = new HashSet<Pair<Node,Node>>(); |
|---|
| 629 | |
|---|
| 630 | for (Map.Entry<Way, List<Integer>> insertPoint : insertPoints.entrySet()) { |
|---|
| 631 | Way w = insertPoint.getKey(); |
|---|
| 632 | List<Integer> is = insertPoint.getValue(); |
|---|
| 633 | |
|---|
| 634 | Way wnew = new Way(w); |
|---|
| 635 | |
|---|
| 636 | pruneSuccsAndReverse(is); |
|---|
| 637 | for (int i : is) { |
|---|
| 638 | segSet.add(Pair.sort(new Pair<Node,Node>(w.getNode(i), w.getNode(i+1)))); |
|---|
| 639 | } |
|---|
| 640 | for (int i : is) { |
|---|
| 641 | wnew.addNode(i + 1, n); |
|---|
| 642 | } |
|---|
| 643 | |
|---|
| 644 | // If ALT is pressed, a new way should be created and that new way should get |
|---|
| 645 | // selected. This works everytime unless the ways the nodes get inserted into |
|---|
| 646 | // are already selected. This is the case when creating a self-overlapping way |
|---|
| 647 | // but pressing ALT prevents this. Therefore we must de-select the way manually |
|---|
| 648 | // here so /only/ the new way will be selected after this method finishes. |
|---|
| 649 | if(alt) { |
|---|
| 650 | newSelection.add(insertPoint.getKey()); |
|---|
| 651 | } |
|---|
| 652 | |
|---|
| 653 | cmds.add(new ChangeCommand(insertPoint.getKey(), wnew)); |
|---|
| 654 | replacedWays.add(insertPoint.getKey()); |
|---|
| 655 | reuseWays.add(wnew); |
|---|
| 656 | } |
|---|
| 657 | |
|---|
| 658 | adjustNode(segSet, n); |
|---|
| 659 | } |
|---|
| 660 | |
|---|
| 661 | /** |
|---|
| 662 | * Prevent creation of ways that look like this: <----> |
|---|
| 663 | * This happens if users want to draw a no-exit-sideway from the main way like this: |
|---|
| 664 | * ^ |
|---|
| 665 | * |<----> |
|---|
| 666 | * | |
|---|
| 667 | * The solution isn't ideal because the main way will end in the side way, which is bad for |
|---|
| 668 | * navigation software ("drive straight on") but at least easier to fix. Maybe users will fix |
|---|
| 669 | * it on their own, too. At least it's better than producing an error. |
|---|
| 670 | * |
|---|
| 671 | * @param Way the way to check |
|---|
| 672 | * @param Node the current node (i.e. the one the connection will be made from) |
|---|
| 673 | * @param Node the target node (i.e. the one the connection will be made to) |
|---|
| 674 | * @return Boolean True if this would create a selfcontaining way, false otherwise. |
|---|
| 675 | */ |
|---|
| 676 | private boolean isSelfContainedWay(Way selectedWay, Node currentNode, Node targetNode) { |
|---|
| 677 | if(selectedWay != null) { |
|---|
| 678 | int posn0 = selectedWay.getNodes().indexOf(currentNode); |
|---|
| 679 | if( posn0 != -1 && // n0 is part of way |
|---|
| 680 | (posn0 >= 1 && targetNode.equals(selectedWay.getNode(posn0-1))) || // previous node |
|---|
| 681 | (posn0 < selectedWay.getNodesCount()-1) && targetNode.equals(selectedWay.getNode(posn0+1))) { // next node |
|---|
| 682 | getCurrentDataSet().setSelected(targetNode); |
|---|
| 683 | lastUsedNode = targetNode; |
|---|
| 684 | return true; |
|---|
| 685 | } |
|---|
| 686 | } |
|---|
| 687 | |
|---|
| 688 | return false; |
|---|
| 689 | } |
|---|
| 690 | |
|---|
| 691 | /** |
|---|
| 692 | * Finds a node to continue drawing from. Decision is based upon given node and way. |
|---|
| 693 | * @param selectedNode Currently selected node, may be null |
|---|
| 694 | * @param selectedWay Currently selected way, may be null |
|---|
| 695 | * @return Node if a suitable node is found, null otherwise |
|---|
| 696 | */ |
|---|
| 697 | private Node findNodeToContinueFrom(Node selectedNode, Way selectedWay) { |
|---|
| 698 | // No nodes or ways have been selected, this occurs when a relation |
|---|
| 699 | // has been selected or the selection is empty |
|---|
| 700 | if(selectedNode == null && selectedWay == null) |
|---|
| 701 | return null; |
|---|
| 702 | |
|---|
| 703 | if (selectedNode == null) { |
|---|
| 704 | if (selectedWay.isFirstLastNode(lastUsedNode)) |
|---|
| 705 | return lastUsedNode; |
|---|
| 706 | |
|---|
| 707 | // We have a way selected, but no suitable node to continue from. Start anew. |
|---|
| 708 | return null; |
|---|
| 709 | } |
|---|
| 710 | |
|---|
| 711 | if (selectedWay == null) |
|---|
| 712 | return selectedNode; |
|---|
| 713 | |
|---|
| 714 | if (selectedWay.isFirstLastNode(selectedNode)) |
|---|
| 715 | return selectedNode; |
|---|
| 716 | |
|---|
| 717 | // We have a way and node selected, but it's not at the start/end of the way. Start anew. |
|---|
| 718 | return null; |
|---|
| 719 | } |
|---|
| 720 | |
|---|
| 721 | @Override |
|---|
| 722 | public void mouseDragged(MouseEvent e) { |
|---|
| 723 | mouseMoved(e); |
|---|
| 724 | } |
|---|
| 725 | |
|---|
| 726 | @Override |
|---|
| 727 | public void mouseMoved(MouseEvent e) { |
|---|
| 728 | if(!Main.map.mapView.isActiveLayerDrawable()) |
|---|
| 729 | return; |
|---|
| 730 | |
|---|
| 731 | // we copy ctrl/alt/shift from the event just in case our global |
|---|
| 732 | // AWTEvent didn't make it through the security manager. Unclear |
|---|
| 733 | // if that can ever happen but better be safe. |
|---|
| 734 | updateKeyModifiers(e); |
|---|
| 735 | mousePos = e.getPoint(); |
|---|
| 736 | |
|---|
| 737 | computeHelperLine(); |
|---|
| 738 | addHighlighting(); |
|---|
| 739 | } |
|---|
| 740 | |
|---|
| 741 | /** |
|---|
| 742 | * This method prepares data required for painting the "helper line" from |
|---|
| 743 | * the last used position to the mouse cursor. It duplicates some code from |
|---|
| 744 | * mouseReleased() (FIXME). |
|---|
| 745 | */ |
|---|
| 746 | private void computeHelperLine() { |
|---|
| 747 | MapView mv = Main.map.mapView; |
|---|
| 748 | if (mousePos == null) { |
|---|
| 749 | // Don't draw the line. |
|---|
| 750 | currentMouseEastNorth = null; |
|---|
| 751 | currentBaseNode = null; |
|---|
| 752 | return; |
|---|
| 753 | } |
|---|
| 754 | |
|---|
| 755 | Collection<OsmPrimitive> selection = getCurrentDataSet().getSelected(); |
|---|
| 756 | |
|---|
| 757 | Node currentMouseNode = null; |
|---|
| 758 | mouseOnExistingNode = null; |
|---|
| 759 | mouseOnExistingWays = new HashSet<Way>(); |
|---|
| 760 | |
|---|
| 761 | showStatusInfo(-1, -1, -1, snapHelper.isSnapOn()); |
|---|
| 762 | |
|---|
| 763 | if (!ctrl && mousePos != null) { |
|---|
| 764 | currentMouseNode = mv.getNearestNode(mousePos, OsmPrimitive.isSelectablePredicate); |
|---|
| 765 | } |
|---|
| 766 | |
|---|
| 767 | // We need this for highlighting and we'll only do so if we actually want to re-use |
|---|
| 768 | // *and* there is no node nearby (because nodes beat ways when re-using) |
|---|
| 769 | if(!ctrl && currentMouseNode == null) { |
|---|
| 770 | List<WaySegment> wss = mv.getNearestWaySegments(mousePos, OsmPrimitive.isSelectablePredicate); |
|---|
| 771 | for(WaySegment ws : wss) { |
|---|
| 772 | mouseOnExistingWays.add(ws.way); |
|---|
| 773 | } |
|---|
| 774 | } |
|---|
| 775 | |
|---|
| 776 | if (currentMouseNode != null) { |
|---|
| 777 | // user clicked on node |
|---|
| 778 | if (selection.isEmpty()) return; |
|---|
| 779 | currentMouseEastNorth = currentMouseNode.getEastNorth(); |
|---|
| 780 | mouseOnExistingNode = currentMouseNode; |
|---|
| 781 | } else { |
|---|
| 782 | // no node found in clicked area |
|---|
| 783 | currentMouseEastNorth = mv.getEastNorth(mousePos.x, mousePos.y); |
|---|
| 784 | } |
|---|
| 785 | |
|---|
| 786 | determineCurrentBaseNodeAndPreviousNode(selection); |
|---|
| 787 | if (previousNode == null) snapHelper.noSnapNow(); |
|---|
| 788 | |
|---|
| 789 | if (currentBaseNode == null || currentBaseNode == currentMouseNode) |
|---|
| 790 | return; // Don't create zero length way segments. |
|---|
| 791 | |
|---|
| 792 | |
|---|
| 793 | double curHdg = Math.toDegrees(currentBaseNode.getEastNorth() |
|---|
| 794 | .heading(currentMouseEastNorth)); |
|---|
| 795 | double baseHdg=-1; |
|---|
| 796 | if (previousNode != null) { |
|---|
| 797 | baseHdg = Math.toDegrees(previousNode.getEastNorth() |
|---|
| 798 | .heading(currentBaseNode.getEastNorth())); |
|---|
| 799 | } |
|---|
| 800 | |
|---|
| 801 | snapHelper.checkAngleSnapping(currentMouseEastNorth,baseHdg, curHdg); |
|---|
| 802 | |
|---|
| 803 | // status bar was filled by snapHelper |
|---|
| 804 | } |
|---|
| 805 | |
|---|
| 806 | private void showStatusInfo(double angle, double hdg, double distance, boolean activeFlag) { |
|---|
| 807 | Main.map.statusLine.setAngle(angle); |
|---|
| 808 | Main.map.statusLine.activateAnglePanel(activeFlag); |
|---|
| 809 | Main.map.statusLine.setHeading(hdg); |
|---|
| 810 | Main.map.statusLine.setDist(distance); |
|---|
| 811 | } |
|---|
| 812 | |
|---|
| 813 | /** |
|---|
| 814 | * Helper function that sets fields currentBaseNode and previousNode |
|---|
| 815 | * @param selection |
|---|
| 816 | * uses also lastUsedNode field |
|---|
| 817 | */ |
|---|
| 818 | private void determineCurrentBaseNodeAndPreviousNode(Collection<OsmPrimitive> selection) { |
|---|
| 819 | Node selectedNode = null; |
|---|
| 820 | Way selectedWay = null; |
|---|
| 821 | for (OsmPrimitive p : selection) { |
|---|
| 822 | if (p instanceof Node) { |
|---|
| 823 | if (selectedNode != null) |
|---|
| 824 | return; |
|---|
| 825 | selectedNode = (Node) p; |
|---|
| 826 | } else if (p instanceof Way) { |
|---|
| 827 | if (selectedWay != null) |
|---|
| 828 | return; |
|---|
| 829 | selectedWay = (Way) p; |
|---|
| 830 | } |
|---|
| 831 | } |
|---|
| 832 | // we are here, if not more than 1 way or node is selected, |
|---|
| 833 | |
|---|
| 834 | // the node from which we make a connection |
|---|
| 835 | currentBaseNode = null; |
|---|
| 836 | previousNode = null; |
|---|
| 837 | |
|---|
| 838 | if (selectedNode == null) { |
|---|
| 839 | if (selectedWay == null) |
|---|
| 840 | return; |
|---|
| 841 | if (selectedWay.isFirstLastNode(lastUsedNode)) { |
|---|
| 842 | currentBaseNode = lastUsedNode; |
|---|
| 843 | if (lastUsedNode == selectedWay.getNode(selectedWay.getNodesCount()-1) && selectedWay.getNodesCount() > 1) { |
|---|
| 844 | previousNode = selectedWay.getNode(selectedWay.getNodesCount()-2); |
|---|
| 845 | } |
|---|
| 846 | } |
|---|
| 847 | } else if (selectedWay == null) { |
|---|
| 848 | currentBaseNode = selectedNode; |
|---|
| 849 | } else if (!selectedWay.isDeleted()) { // fix #7118 |
|---|
| 850 | if (selectedNode == selectedWay.getNode(0)){ |
|---|
| 851 | currentBaseNode = selectedNode; |
|---|
| 852 | if (selectedWay.getNodesCount()>1) previousNode = selectedWay.getNode(1); |
|---|
| 853 | } |
|---|
| 854 | if (selectedNode == selectedWay.lastNode()) { |
|---|
| 855 | currentBaseNode = selectedNode; |
|---|
| 856 | if (selectedWay.getNodesCount()>1) |
|---|
| 857 | previousNode = selectedWay.getNode(selectedWay.getNodesCount()-2); |
|---|
| 858 | } |
|---|
| 859 | } |
|---|
| 860 | } |
|---|
| 861 | |
|---|
| 862 | |
|---|
| 863 | /** |
|---|
| 864 | * Repaint on mouse exit so that the helper line goes away. |
|---|
| 865 | */ |
|---|
| 866 | @Override public void mouseExited(MouseEvent e) { |
|---|
| 867 | if(!Main.map.mapView.isActiveLayerDrawable()) |
|---|
| 868 | return; |
|---|
| 869 | mousePos = e.getPoint(); |
|---|
| 870 | snapHelper.noSnapNow(); |
|---|
| 871 | boolean repaintIssued = removeHighlighting(); |
|---|
| 872 | // force repaint in case snapHelper needs one. If removeHighlighting |
|---|
| 873 | // caused one already, donât do it again. |
|---|
| 874 | if(!repaintIssued) { |
|---|
| 875 | Main.map.mapView.repaint(); |
|---|
| 876 | } |
|---|
| 877 | } |
|---|
| 878 | |
|---|
| 879 | /** |
|---|
| 880 | * @return If the node is the end of exactly one way, return this. |
|---|
| 881 | * <code>null</code> otherwise. |
|---|
| 882 | */ |
|---|
| 883 | public static Way getWayForNode(Node n) { |
|---|
| 884 | Way way = null; |
|---|
| 885 | for (Way w : Utils.filteredCollection(n.getReferrers(), Way.class)) { |
|---|
| 886 | if (!w.isUsable() || w.getNodesCount() < 1) { |
|---|
| 887 | continue; |
|---|
| 888 | } |
|---|
| 889 | Node firstNode = w.getNode(0); |
|---|
| 890 | Node lastNode = w.getNode(w.getNodesCount() - 1); |
|---|
| 891 | if ((firstNode == n || lastNode == n) && (firstNode != lastNode)) { |
|---|
| 892 | if (way != null) |
|---|
| 893 | return null; |
|---|
| 894 | way = w; |
|---|
| 895 | } |
|---|
| 896 | } |
|---|
| 897 | return way; |
|---|
| 898 | } |
|---|
| 899 | |
|---|
| 900 | public Node getCurrentBaseNode() { |
|---|
| 901 | return currentBaseNode; |
|---|
| 902 | } |
|---|
| 903 | |
|---|
| 904 | private static void pruneSuccsAndReverse(List<Integer> is) { |
|---|
| 905 | HashSet<Integer> is2 = new HashSet<Integer>(); |
|---|
| 906 | for (int i : is) { |
|---|
| 907 | if (!is2.contains(i - 1) && !is2.contains(i + 1)) { |
|---|
| 908 | is2.add(i); |
|---|
| 909 | } |
|---|
| 910 | } |
|---|
| 911 | is.clear(); |
|---|
| 912 | is.addAll(is2); |
|---|
| 913 | Collections.sort(is); |
|---|
| 914 | Collections.reverse(is); |
|---|
| 915 | } |
|---|
| 916 | |
|---|
| 917 | /** |
|---|
| 918 | * Adjusts the position of a node to lie on a segment (or a segment |
|---|
| 919 | * intersection). |
|---|
| 920 | * |
|---|
| 921 | * If one or more than two segments are passed, the node is adjusted |
|---|
| 922 | * to lie on the first segment that is passed. |
|---|
| 923 | * |
|---|
| 924 | * If two segments are passed, the node is adjusted to be at their |
|---|
| 925 | * intersection. |
|---|
| 926 | * |
|---|
| 927 | * No action is taken if no segments are passed. |
|---|
| 928 | * |
|---|
| 929 | * @param segs the segments to use as a reference when adjusting |
|---|
| 930 | * @param n the node to adjust |
|---|
| 931 | */ |
|---|
| 932 | private static void adjustNode(Collection<Pair<Node,Node>> segs, Node n) { |
|---|
| 933 | |
|---|
| 934 | switch (segs.size()) { |
|---|
| 935 | case 0: |
|---|
| 936 | return; |
|---|
| 937 | case 2: |
|---|
| 938 | // This computes the intersection between |
|---|
| 939 | // the two segments and adjusts the node position. |
|---|
| 940 | Iterator<Pair<Node,Node>> i = segs.iterator(); |
|---|
| 941 | Pair<Node,Node> seg = i.next(); |
|---|
| 942 | EastNorth A = seg.a.getEastNorth(); |
|---|
| 943 | EastNorth B = seg.b.getEastNorth(); |
|---|
| 944 | seg = i.next(); |
|---|
| 945 | EastNorth C = seg.a.getEastNorth(); |
|---|
| 946 | EastNorth D = seg.b.getEastNorth(); |
|---|
| 947 | |
|---|
| 948 | double u=det(B.east() - A.east(), B.north() - A.north(), C.east() - D.east(), C.north() - D.north()); |
|---|
| 949 | |
|---|
| 950 | // Check for parallel segments and do nothing if they are |
|---|
| 951 | // In practice this will probably only happen when a way has been duplicated |
|---|
| 952 | |
|---|
| 953 | if (u == 0) |
|---|
| 954 | return; |
|---|
| 955 | |
|---|
| 956 | // q is a number between 0 and 1 |
|---|
| 957 | // It is the point in the segment where the intersection occurs |
|---|
| 958 | // if the segment is scaled to lenght 1 |
|---|
| 959 | |
|---|
| 960 | double q = det(B.north() - C.north(), B.east() - C.east(), D.north() - C.north(), D.east() - C.east()) / u; |
|---|
| 961 | EastNorth intersection = new EastNorth( |
|---|
| 962 | B.east() + q * (A.east() - B.east()), |
|---|
| 963 | B.north() + q * (A.north() - B.north())); |
|---|
| 964 | |
|---|
| 965 | int snapToIntersectionThreshold |
|---|
| 966 | = Main.pref.getInteger("edit.snap-intersection-threshold",10); |
|---|
| 967 | |
|---|
| 968 | // only adjust to intersection if within snapToIntersectionThreshold pixel of mouse click; otherwise |
|---|
| 969 | // fall through to default action. |
|---|
| 970 | // (for semi-parallel lines, intersection might be miles away!) |
|---|
| 971 | if (Main.map.mapView.getPoint(n).distance(Main.map.mapView.getPoint(intersection)) < snapToIntersectionThreshold) { |
|---|
| 972 | n.setEastNorth(intersection); |
|---|
| 973 | return; |
|---|
| 974 | } |
|---|
| 975 | default: |
|---|
| 976 | EastNorth P = n.getEastNorth(); |
|---|
| 977 | seg = segs.iterator().next(); |
|---|
| 978 | A = seg.a.getEastNorth(); |
|---|
| 979 | B = seg.b.getEastNorth(); |
|---|
| 980 | double a = P.distanceSq(B); |
|---|
| 981 | double b = P.distanceSq(A); |
|---|
| 982 | double c = A.distanceSq(B); |
|---|
| 983 | q = (a - b + c) / (2*c); |
|---|
| 984 | n.setEastNorth(new EastNorth(B.east() + q * (A.east() - B.east()), B.north() + q * (A.north() - B.north()))); |
|---|
| 985 | } |
|---|
| 986 | } |
|---|
| 987 | |
|---|
| 988 | // helper for adjustNode |
|---|
| 989 | static double det(double a, double b, double c, double d) { |
|---|
| 990 | return a * d - b * c; |
|---|
| 991 | } |
|---|
| 992 | |
|---|
| 993 | private void tryToMoveNodeOnIntersection(List<WaySegment> wss, Node n) { |
|---|
| 994 | if (wss.isEmpty()) |
|---|
| 995 | return; |
|---|
| 996 | WaySegment ws = wss.get(0); |
|---|
| 997 | EastNorth p1=ws.getFirstNode().getEastNorth(); |
|---|
| 998 | EastNorth p2=ws.getSecondNode().getEastNorth(); |
|---|
| 999 | if (snapHelper.dir2!=null && currentBaseNode!=null) { |
|---|
| 1000 | EastNorth xPoint = Geometry.getSegmentSegmentIntersection(p1, p2, snapHelper.dir2, currentBaseNode.getEastNorth()); |
|---|
| 1001 | if (xPoint!=null) n.setEastNorth(xPoint); |
|---|
| 1002 | } |
|---|
| 1003 | } |
|---|
| 1004 | /** |
|---|
| 1005 | * Takes the data from computeHelperLine to determine which ways/nodes should be highlighted |
|---|
| 1006 | * (if feature enabled). Also sets the target cursor if appropriate. It adds the to-be- |
|---|
| 1007 | * highlighted primitives to newHighlights but does not actually highlight them. This work is |
|---|
| 1008 | * done in redrawIfRequired. This means, calling addHighlighting() without redrawIfRequired() |
|---|
| 1009 | * will leave the data in an inconsistent state. |
|---|
| 1010 | * |
|---|
| 1011 | * The status bar derives its information from oldHighlights, so in order to update the status |
|---|
| 1012 | * bar both addHighlighting() and repaintIfRequired() are needed, since former fills newHighlights |
|---|
| 1013 | * and latter processes them into oldHighlights. |
|---|
| 1014 | */ |
|---|
| 1015 | private void addHighlighting() { |
|---|
| 1016 | newHighlights = new HashSet<OsmPrimitive>(); |
|---|
| 1017 | |
|---|
| 1018 | // if ctrl key is held ("no join"), don't highlight anything |
|---|
| 1019 | if (ctrl) { |
|---|
| 1020 | Main.map.mapView.setNewCursor(cursor, this); |
|---|
| 1021 | redrawIfRequired(); |
|---|
| 1022 | return; |
|---|
| 1023 | } |
|---|
| 1024 | |
|---|
| 1025 | // This happens when nothing is selected, but we still want to highlight the "target node" |
|---|
| 1026 | if (mouseOnExistingNode == null && getCurrentDataSet().getSelected().size() == 0 |
|---|
| 1027 | && mousePos != null) { |
|---|
| 1028 | mouseOnExistingNode = Main.map.mapView.getNearestNode(mousePos, OsmPrimitive.isSelectablePredicate); |
|---|
| 1029 | } |
|---|
| 1030 | |
|---|
| 1031 | if (mouseOnExistingNode != null) { |
|---|
| 1032 | Main.map.mapView.setNewCursor(cursorJoinNode, this); |
|---|
| 1033 | newHighlights.add(mouseOnExistingNode); |
|---|
| 1034 | redrawIfRequired(); |
|---|
| 1035 | return; |
|---|
| 1036 | } |
|---|
| 1037 | |
|---|
| 1038 | // Insert the node into all the nearby way segments |
|---|
| 1039 | if (mouseOnExistingWays.size() == 0) { |
|---|
| 1040 | Main.map.mapView.setNewCursor(cursor, this); |
|---|
| 1041 | redrawIfRequired(); |
|---|
| 1042 | return; |
|---|
| 1043 | } |
|---|
| 1044 | |
|---|
| 1045 | Main.map.mapView.setNewCursor(cursorJoinWay, this); |
|---|
| 1046 | newHighlights.addAll(mouseOnExistingWays); |
|---|
| 1047 | redrawIfRequired(); |
|---|
| 1048 | } |
|---|
| 1049 | |
|---|
| 1050 | /** |
|---|
| 1051 | * Removes target highlighting from primitives. Issues repaint if required. |
|---|
| 1052 | * Returns true if a repaint has been issued. |
|---|
| 1053 | */ |
|---|
| 1054 | private boolean removeHighlighting() { |
|---|
| 1055 | newHighlights = new HashSet<OsmPrimitive>(); |
|---|
| 1056 | return redrawIfRequired(); |
|---|
| 1057 | } |
|---|
| 1058 | |
|---|
| 1059 | public void paint(Graphics2D g, MapView mv, Bounds box) { |
|---|
| 1060 | // sanity checks |
|---|
| 1061 | if (Main.map.mapView == null || mousePos == null |
|---|
| 1062 | // don't draw line if we don't know where from or where to |
|---|
| 1063 | || currentBaseNode == null || currentMouseEastNorth == null |
|---|
| 1064 | // don't draw line if mouse is outside window |
|---|
| 1065 | || !Main.map.mapView.getBounds().contains(mousePos)) |
|---|
| 1066 | return; |
|---|
| 1067 | |
|---|
| 1068 | Graphics2D g2 = g; |
|---|
| 1069 | snapHelper.drawIfNeeded(g2,mv); |
|---|
| 1070 | if (!drawHelperLine || wayIsFinished || shift) |
|---|
| 1071 | return; |
|---|
| 1072 | |
|---|
| 1073 | if (!snapHelper.isActive()) { // else use color and stoke from snapHelper.draw |
|---|
| 1074 | g2.setColor(selectedColor); |
|---|
| 1075 | g2.setStroke(new BasicStroke(3, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND)); |
|---|
| 1076 | } else if (!snapHelper.drawConstructionGeometry) |
|---|
| 1077 | return; |
|---|
| 1078 | GeneralPath b = new GeneralPath(); |
|---|
| 1079 | Point p1=mv.getPoint(currentBaseNode); |
|---|
| 1080 | Point p2=mv.getPoint(currentMouseEastNorth); |
|---|
| 1081 | |
|---|
| 1082 | double t = Math.atan2(p2.y-p1.y, p2.x-p1.x) + Math.PI; |
|---|
| 1083 | |
|---|
| 1084 | b.moveTo(p1.x,p1.y); b.lineTo(p2.x, p2.y); |
|---|
| 1085 | |
|---|
| 1086 | // if alt key is held ("start new way"), draw a little perpendicular line |
|---|
| 1087 | if (alt) { |
|---|
| 1088 | b.moveTo((int)(p1.x + 8*Math.cos(t+PHI)), (int)(p1.y + 8*Math.sin(t+PHI))); |
|---|
| 1089 | b.lineTo((int)(p1.x + 8*Math.cos(t-PHI)), (int)(p1.y + 8*Math.sin(t-PHI))); |
|---|
| 1090 | } |
|---|
| 1091 | |
|---|
| 1092 | g2.draw(b); |
|---|
| 1093 | g2.setStroke(new BasicStroke(1)); |
|---|
| 1094 | } |
|---|
| 1095 | |
|---|
| 1096 | @Override |
|---|
| 1097 | public String getModeHelpText() { |
|---|
| 1098 | String rv = ""; |
|---|
| 1099 | /* |
|---|
| 1100 | * No modifiers: all (Connect, Node Re-Use, Auto-Weld) |
|---|
| 1101 | * CTRL: disables node re-use, auto-weld |
|---|
| 1102 | * Shift: do not make connection |
|---|
| 1103 | * ALT: make connection but start new way in doing so |
|---|
| 1104 | */ |
|---|
| 1105 | |
|---|
| 1106 | /* |
|---|
| 1107 | * Status line text generation is split into two parts to keep it maintainable. |
|---|
| 1108 | * First part looks at what will happen to the new node inserted on click and |
|---|
| 1109 | * the second part will look if a connection is made or not. |
|---|
| 1110 | * |
|---|
| 1111 | * Note that this help text is not absolutely accurate as it doesn't catch any special |
|---|
| 1112 | * cases (e.g. when preventing <---> ways). The only special that it catches is when |
|---|
| 1113 | * a way is about to be finished. |
|---|
| 1114 | * |
|---|
| 1115 | * First check what happens to the new node. |
|---|
| 1116 | */ |
|---|
| 1117 | |
|---|
| 1118 | // oldHighlights stores the current highlights. If this |
|---|
| 1119 | // list is empty we can assume that we won't do any joins |
|---|
| 1120 | if (ctrl || oldHighlights.isEmpty()) { |
|---|
| 1121 | rv = tr("Create new node."); |
|---|
| 1122 | } else { |
|---|
| 1123 | // oldHighlights may store a node or way, check if it's a node |
|---|
| 1124 | OsmPrimitive x = oldHighlights.iterator().next(); |
|---|
| 1125 | if (x instanceof Node) { |
|---|
| 1126 | rv = tr("Select node under cursor."); |
|---|
| 1127 | } else { |
|---|
| 1128 | rv = trn("Insert new node into way.", "Insert new node into {0} ways.", |
|---|
| 1129 | oldHighlights.size(), oldHighlights.size()); |
|---|
| 1130 | } |
|---|
| 1131 | } |
|---|
| 1132 | |
|---|
| 1133 | /* |
|---|
| 1134 | * Check whether a connection will be made |
|---|
| 1135 | */ |
|---|
| 1136 | if (currentBaseNode != null && !wayIsFinished) { |
|---|
| 1137 | if (alt) { |
|---|
| 1138 | rv += " " + tr("Start new way from last node."); |
|---|
| 1139 | } else { |
|---|
| 1140 | rv += " " + tr("Continue way from last node."); |
|---|
| 1141 | } |
|---|
| 1142 | if (snapHelper.isSnapOn()) { |
|---|
| 1143 | rv += " "+ tr("Angle snapping active."); |
|---|
| 1144 | } |
|---|
| 1145 | } |
|---|
| 1146 | |
|---|
| 1147 | Node n = mouseOnExistingNode; |
|---|
| 1148 | /* |
|---|
| 1149 | * Handle special case: Highlighted node == selected node => finish drawing |
|---|
| 1150 | */ |
|---|
| 1151 | if (n != null && getCurrentDataSet() != null && getCurrentDataSet().getSelectedNodes().contains(n)) { |
|---|
| 1152 | if (wayIsFinished) { |
|---|
| 1153 | rv = tr("Select node under cursor."); |
|---|
| 1154 | } else { |
|---|
| 1155 | rv = tr("Finish drawing."); |
|---|
| 1156 | } |
|---|
| 1157 | } |
|---|
| 1158 | |
|---|
| 1159 | /* |
|---|
| 1160 | * Handle special case: Self-Overlapping or closing way |
|---|
| 1161 | */ |
|---|
| 1162 | if (getCurrentDataSet() != null && getCurrentDataSet().getSelectedWays().size() > 0 && !wayIsFinished && !alt) { |
|---|
| 1163 | Way w = getCurrentDataSet().getSelectedWays().iterator().next(); |
|---|
| 1164 | for (Node m : w.getNodes()) { |
|---|
| 1165 | if (m.equals(mouseOnExistingNode) || mouseOnExistingWays.contains(w)) { |
|---|
| 1166 | rv += " " + tr("Finish drawing."); |
|---|
| 1167 | break; |
|---|
| 1168 | } |
|---|
| 1169 | } |
|---|
| 1170 | } |
|---|
| 1171 | return rv; |
|---|
| 1172 | } |
|---|
| 1173 | |
|---|
| 1174 | @Override |
|---|
| 1175 | public boolean layerIsSupported(Layer l) { |
|---|
| 1176 | return l instanceof OsmDataLayer; |
|---|
| 1177 | } |
|---|
| 1178 | |
|---|
| 1179 | @Override |
|---|
| 1180 | protected void updateEnabledState() { |
|---|
| 1181 | setEnabled(getEditLayer() != null); |
|---|
| 1182 | } |
|---|
| 1183 | |
|---|
| 1184 | @Override |
|---|
| 1185 | public void destroy() { |
|---|
| 1186 | super.destroy(); |
|---|
| 1187 | } |
|---|
| 1188 | |
|---|
| 1189 | public class BackSpaceAction extends AbstractAction { |
|---|
| 1190 | |
|---|
| 1191 | @Override |
|---|
| 1192 | public void actionPerformed(ActionEvent e) { |
|---|
| 1193 | Main.main.undoRedo.undo(); |
|---|
| 1194 | Node n=null; |
|---|
| 1195 | Command lastCmd=Main.main.undoRedo.commands.peekLast(); |
|---|
| 1196 | if (lastCmd==null) return; |
|---|
| 1197 | for (OsmPrimitive p: lastCmd.getParticipatingPrimitives()) { |
|---|
| 1198 | if (p instanceof Node) { |
|---|
| 1199 | if (n==null) { |
|---|
| 1200 | n=(Node) p; // found one node |
|---|
| 1201 | wayIsFinished=false; |
|---|
| 1202 | } else { |
|---|
| 1203 | // if more than 1 node were affected by previous command, |
|---|
| 1204 | // we have no way to continue, so we forget about found node |
|---|
| 1205 | n=null; |
|---|
| 1206 | break; |
|---|
| 1207 | } |
|---|
| 1208 | } |
|---|
| 1209 | } |
|---|
| 1210 | // select last added node - maybe we will continue drawing from it |
|---|
| 1211 | if (n!=null) getCurrentDataSet().addSelected(n); |
|---|
| 1212 | } |
|---|
| 1213 | } |
|---|
| 1214 | |
|---|
| 1215 | private class SnapHelper { |
|---|
| 1216 | boolean snapOn; // snapping is turned on |
|---|
| 1217 | |
|---|
| 1218 | private boolean active; // snapping is active for current mouse position |
|---|
| 1219 | private boolean fixed; // snap angle is fixed |
|---|
| 1220 | private boolean absoluteFix; // snap angle is absolute |
|---|
| 1221 | |
|---|
| 1222 | private boolean drawConstructionGeometry; |
|---|
| 1223 | private boolean showProjectedPoint; |
|---|
| 1224 | private boolean showAngle; |
|---|
| 1225 | |
|---|
| 1226 | private boolean snapToProjections; |
|---|
| 1227 | |
|---|
| 1228 | EastNorth dir2; |
|---|
| 1229 | EastNorth projected; |
|---|
| 1230 | String labelText; |
|---|
| 1231 | double lastAngle; |
|---|
| 1232 | |
|---|
| 1233 | double customBaseHeading=-1; // angle of base line, if not last segment) |
|---|
| 1234 | private EastNorth segmentPoint1; // remembered first point of base segment |
|---|
| 1235 | private EastNorth segmentPoint2; // remembered second point of base segment |
|---|
| 1236 | private EastNorth projectionSource; // point that we are projecting to the line |
|---|
| 1237 | |
|---|
| 1238 | double snapAngles[]; |
|---|
| 1239 | double snapAngleTolerance; |
|---|
| 1240 | |
|---|
| 1241 | double pe,pn; // (pe,pn) - direction of snapping line |
|---|
| 1242 | double e0,n0; // (e0,n0) - origin of snapping line |
|---|
| 1243 | |
|---|
| 1244 | final String fixFmt="%d "+tr("FIX"); |
|---|
| 1245 | Color snapHelperColor; |
|---|
| 1246 | private Color highlightColor; |
|---|
| 1247 | |
|---|
| 1248 | private Stroke normalStroke; |
|---|
| 1249 | private Stroke helperStroke; |
|---|
| 1250 | private Stroke highlightStroke; |
|---|
| 1251 | |
|---|
| 1252 | JCheckBoxMenuItem checkBox; |
|---|
| 1253 | |
|---|
| 1254 | public void init() { |
|---|
| 1255 | snapOn=false; |
|---|
| 1256 | checkBox.setState(snapOn); |
|---|
| 1257 | fixed=false; absoluteFix=false; |
|---|
| 1258 | |
|---|
| 1259 | Collection<String> angles = Main.pref.getCollection("draw.anglesnap.angles", |
|---|
| 1260 | Arrays.asList("0","30","45","60","90","120","135","150","180")); |
|---|
| 1261 | |
|---|
| 1262 | snapAngles = new double[2*angles.size()]; |
|---|
| 1263 | int i=0; |
|---|
| 1264 | for (String s: angles) { |
|---|
| 1265 | try { |
|---|
| 1266 | snapAngles[i] = Double.parseDouble(s); i++; |
|---|
| 1267 | snapAngles[i] = 360-Double.parseDouble(s); i++; |
|---|
| 1268 | } catch (NumberFormatException e) { |
|---|
| 1269 | System.err.println("Warning: incorrect number in draw.anglesnap.angles preferences: "+s); |
|---|
| 1270 | snapAngles[i]=0;i++; |
|---|
| 1271 | snapAngles[i]=0;i++; |
|---|
| 1272 | } |
|---|
| 1273 | } |
|---|
| 1274 | snapAngleTolerance = Main.pref.getDouble("draw.anglesnap.tolerance", 5.0); |
|---|
| 1275 | drawConstructionGeometry = Main.pref.getBoolean("draw.anglesnap.drawConstructionGeometry", true); |
|---|
| 1276 | showProjectedPoint = Main.pref.getBoolean("draw.anglesnap.drawProjectedPoint", true); |
|---|
| 1277 | snapToProjections = Main.pref.getBoolean("draw.anglesnap.projectionsnap", true); |
|---|
| 1278 | |
|---|
| 1279 | showAngle = Main.pref.getBoolean("draw.anglesnap.showAngle", true); |
|---|
| 1280 | |
|---|
| 1281 | normalStroke = new BasicStroke(3, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND); |
|---|
| 1282 | snapHelperColor = Main.pref.getColor(marktr("draw angle snap"), Color.ORANGE); |
|---|
| 1283 | |
|---|
| 1284 | highlightColor = Main.pref.getColor(marktr("draw angle snap highlight"), |
|---|
| 1285 | new Color(Color.ORANGE.getRed(),Color.ORANGE.getGreen(),Color.ORANGE.getBlue(),128)); |
|---|
| 1286 | highlightStroke = new BasicStroke(10, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND); |
|---|
| 1287 | |
|---|
| 1288 | float dash1[] = { 4.0f }; |
|---|
| 1289 | helperStroke = new BasicStroke(1.0f, BasicStroke.CAP_BUTT, |
|---|
| 1290 | BasicStroke.JOIN_MITER, 10.0f, dash1, 0.0f); |
|---|
| 1291 | } |
|---|
| 1292 | |
|---|
| 1293 | public void saveAngles(String ... angles) { |
|---|
| 1294 | Main.pref.putCollection("draw.anglesnap.angles", Arrays.asList(angles)); |
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| 1295 | } |
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| 1296 | |
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| 1297 | public void setMenuCheckBox(JCheckBoxMenuItem checkBox) { |
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| 1298 | this.checkBox = checkBox; |
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| 1299 | } |
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| 1300 | |
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| 1301 | public void drawIfNeeded(Graphics2D g2, MapView mv) { |
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| 1302 | if (!snapOn || !active) |
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| 1303 | return; |
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| 1304 | Point p1=mv.getPoint(currentBaseNode); |
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| 1305 | Point p2=mv.getPoint(dir2); |
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| 1306 | Point p3=mv.getPoint(projected); |
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| 1307 | GeneralPath b; |
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| 1308 | if (drawConstructionGeometry) { |
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| 1309 | g2.setColor(snapHelperColor); |
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| 1310 | g2.setStroke(helperStroke); |
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| 1311 | |
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| 1312 | b = new GeneralPath(); |
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| 1313 | if (absoluteFix) { |
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| 1314 | b.moveTo(p2.x,p2.y); |
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| 1315 | b.lineTo(2*p1.x-p2.x,2*p1.y-p2.y); // bi-directional line |
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| 1316 | } else { |
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| 1317 | b.moveTo(p2.x,p2.y); |
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| 1318 | b.lineTo(p3.x,p3.y); |
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| 1319 | } |
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| 1320 | g2.draw(b); |
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| 1321 | } |
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| 1322 | if (projectionSource != null) { |
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| 1323 | g2.setColor(snapHelperColor); |
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| 1324 | g2.setStroke(helperStroke); |
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| 1325 | b = new GeneralPath(); |
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| 1326 | b.moveTo(p3.x,p3.y); |
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| 1327 | Point pp=mv.getPoint(projectionSource); |
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| 1328 | b.lineTo(pp.x,pp.y); |
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| 1329 | g2.draw(b); |
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| 1330 | } |
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| 1331 | |
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| 1332 | if (customBaseHeading >= 0) { |
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| 1333 | g2.setColor(highlightColor); |
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| 1334 | g2.setStroke(highlightStroke); |
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| 1335 | b = new GeneralPath(); |
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| 1336 | Point pp1=mv.getPoint(segmentPoint1); |
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| 1337 | Point pp2=mv.getPoint(segmentPoint2); |
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| 1338 | b.moveTo(pp1.x,pp1.y); |
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| 1339 | b.lineTo(pp2.x,pp2.y); |
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| 1340 | g2.draw(b); |
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| 1341 | } |
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| 1342 | |
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| 1343 | g2.setColor(selectedColor); |
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| 1344 | g2.setStroke(normalStroke); |
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| 1345 | b = new GeneralPath(); |
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| 1346 | b.moveTo(p1.x,p1.y); |
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| 1347 | b.lineTo(p3.x,p3.y); |
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| 1348 | g2.draw(b); |
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| 1349 | |
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| 1350 | g2.drawString(labelText, p3.x-5, p3.y+20); |
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| 1351 | if (showProjectedPoint) { |
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| 1352 | g2.setStroke(normalStroke); |
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| 1353 | g2.drawOval(p3.x-5, p3.y-5, 10, 10); // projected point |
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| 1354 | } |
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| 1355 | |
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| 1356 | g2.setColor(snapHelperColor); |
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| 1357 | g2.setStroke(helperStroke); |
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| 1358 | } |
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| 1359 | |
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| 1360 | /* If mouse position is close to line at 15-30-45-... angle, remembers this direction |
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| 1361 | */ |
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| 1362 | public void checkAngleSnapping(EastNorth currentEN, double baseHeading, double curHeading) { |
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| 1363 | EastNorth p0 = currentBaseNode.getEastNorth(); |
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| 1364 | EastNorth snapPoint = currentEN; |
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| 1365 | double angle = -1; |
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| 1366 | |
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| 1367 | double activeBaseHeading = (customBaseHeading>=0)? customBaseHeading : baseHeading; |
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| 1368 | |
|---|
| 1369 | if (snapOn && (activeBaseHeading>=0)) { |
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| 1370 | angle = curHeading - activeBaseHeading; |
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| 1371 | if (angle < 0) angle+=360; |
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| 1372 | if (angle > 360) angle=0; |
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| 1373 | |
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| 1374 | double nearestAngle; |
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| 1375 | if (fixed) { |
|---|
| 1376 | nearestAngle = lastAngle; // if direction is fixed use previous angle |
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| 1377 | active = true; |
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| 1378 | } else { |
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| 1379 | nearestAngle = getNearestAngle(angle); |
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| 1380 | if (getAngleDelta(nearestAngle, angle) < snapAngleTolerance) { |
|---|
| 1381 | active = (customBaseHeading>=0)? true : Math.abs(nearestAngle - 180) > 1e-3; |
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| 1382 | // if angle is to previous segment, exclude 180 degrees |
|---|
| 1383 | lastAngle = nearestAngle; |
|---|
| 1384 | } else { |
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| 1385 | active=false; |
|---|
| 1386 | } |
|---|
| 1387 | } |
|---|
| 1388 | |
|---|
| 1389 | if (active) { |
|---|
| 1390 | double de, dn, l, phi; |
|---|
| 1391 | e0 = p0.east(); |
|---|
| 1392 | n0 = p0.north(); |
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| 1393 | buildLabelText((nearestAngle<=180) ? nearestAngle : nearestAngle-360); |
|---|
| 1394 | |
|---|
| 1395 | phi = (nearestAngle + activeBaseHeading) * Math.PI / 180; |
|---|
| 1396 | // (pe,pn) - direction of snapping line |
|---|
| 1397 | pe = Math.sin(phi); |
|---|
| 1398 | pn = Math.cos(phi); |
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| 1399 | double scale = 20 * Main.map.mapView.getDist100Pixel(); |
|---|
| 1400 | dir2 = new EastNorth(e0 + scale * pe, n0 + scale * pn); |
|---|
| 1401 | snapPoint = getSnapPoint(currentEN); |
|---|
| 1402 | } else { |
|---|
| 1403 | noSnapNow(); |
|---|
| 1404 | } |
|---|
| 1405 | } |
|---|
| 1406 | |
|---|
| 1407 | // find out the distance, in metres, between the base point and projected point |
|---|
| 1408 | LatLon mouseLatLon = Main.map.mapView.getProjection().eastNorth2latlon(snapPoint); |
|---|
| 1409 | double distance = currentBaseNode.getCoor().greatCircleDistance(mouseLatLon); |
|---|
| 1410 | double hdg = Math.toDegrees(p0.heading(snapPoint)); |
|---|
| 1411 | // heading of segment from current to calculated point, not to mouse position |
|---|
| 1412 | |
|---|
| 1413 | if (baseHeading >=0 ) { // there is previous line segment with some heading |
|---|
| 1414 | angle = hdg - baseHeading; |
|---|
| 1415 | if (angle < 0) angle+=360; |
|---|
| 1416 | if (angle > 360) angle=0; |
|---|
| 1417 | } |
|---|
| 1418 | showStatusInfo(angle, hdg, distance, isSnapOn()); |
|---|
| 1419 | } |
|---|
| 1420 | |
|---|
| 1421 | private void buildLabelText(double nearestAngle) { |
|---|
| 1422 | if (showAngle) { |
|---|
| 1423 | if (fixed) { |
|---|
| 1424 | if (absoluteFix) { |
|---|
| 1425 | labelText = "="; |
|---|
| 1426 | } else { |
|---|
| 1427 | labelText = String.format(fixFmt, (int) nearestAngle); |
|---|
| 1428 | } |
|---|
| 1429 | } else { |
|---|
| 1430 | labelText = String.format("%d", (int) nearestAngle); |
|---|
| 1431 | } |
|---|
| 1432 | } else { |
|---|
| 1433 | if (fixed) { |
|---|
| 1434 | if (absoluteFix) { |
|---|
| 1435 | labelText = "="; |
|---|
| 1436 | } else { |
|---|
| 1437 | labelText = String.format(tr("FIX"), 0); |
|---|
| 1438 | } |
|---|
| 1439 | } else { |
|---|
| 1440 | labelText = ""; |
|---|
| 1441 | } |
|---|
| 1442 | } |
|---|
| 1443 | } |
|---|
| 1444 | |
|---|
| 1445 | public EastNorth getSnapPoint(EastNorth p) { |
|---|
| 1446 | if (!active) |
|---|
| 1447 | return p; |
|---|
| 1448 | double de=p.east()-e0; |
|---|
| 1449 | double dn=p.north()-n0; |
|---|
| 1450 | double l = de*pe+dn*pn; |
|---|
| 1451 | double delta = Main.map.mapView.getDist100Pixel()/20; |
|---|
| 1452 | if (!absoluteFix && l<delta) { |
|---|
| 1453 | active=false; |
|---|
| 1454 | return p; |
|---|
| 1455 | } // do not go backward! |
|---|
| 1456 | |
|---|
| 1457 | projectionSource=null; |
|---|
| 1458 | if (snapToProjections) { |
|---|
| 1459 | DataSet ds = getCurrentDataSet(); |
|---|
| 1460 | Collection<Way> selectedWays = ds.getSelectedWays(); |
|---|
| 1461 | if (selectedWays.size()==1) { |
|---|
| 1462 | Way w = selectedWays.iterator().next(); |
|---|
| 1463 | Collection <EastNorth> pointsToProject = new ArrayList<EastNorth>(); |
|---|
| 1464 | if (w.getNodesCount()<1000) for (Node n: w.getNodes()) { |
|---|
| 1465 | pointsToProject.add(n.getEastNorth()); |
|---|
| 1466 | } |
|---|
| 1467 | if (customBaseHeading >=0 ) { |
|---|
| 1468 | pointsToProject.add(segmentPoint1); |
|---|
| 1469 | pointsToProject.add(segmentPoint2); |
|---|
| 1470 | } |
|---|
| 1471 | EastNorth enOpt=null; |
|---|
| 1472 | double dOpt=1e5; |
|---|
| 1473 | for (EastNorth en: pointsToProject) { // searching for besht projection |
|---|
| 1474 | double l1 = (en.east()-e0)*pe+(en.north()-n0)*pn; |
|---|
| 1475 | double d1 = Math.abs(l1-l); |
|---|
| 1476 | if (d1 < delta && d1 < dOpt) { |
|---|
| 1477 | l=l1; |
|---|
| 1478 | enOpt = en; |
|---|
| 1479 | dOpt = d1; |
|---|
| 1480 | } |
|---|
| 1481 | } |
|---|
| 1482 | if (enOpt!=null) { |
|---|
| 1483 | projectionSource = enOpt; |
|---|
| 1484 | } |
|---|
| 1485 | } |
|---|
| 1486 | } |
|---|
| 1487 | return projected = new EastNorth(e0+l*pe, n0+l*pn); |
|---|
| 1488 | } |
|---|
| 1489 | |
|---|
| 1490 | |
|---|
| 1491 | public void noSnapNow() { |
|---|
| 1492 | active=false; |
|---|
| 1493 | dir2=null; projected=null; |
|---|
| 1494 | labelText=null; |
|---|
| 1495 | } |
|---|
| 1496 | |
|---|
| 1497 | public void setBaseSegment(WaySegment seg) { |
|---|
| 1498 | if (seg==null) return; |
|---|
| 1499 | segmentPoint1=seg.getFirstNode().getEastNorth(); |
|---|
| 1500 | segmentPoint2=seg.getSecondNode().getEastNorth(); |
|---|
| 1501 | |
|---|
| 1502 | double hdg = segmentPoint1.heading(segmentPoint2); |
|---|
| 1503 | hdg=Math.toDegrees(hdg); |
|---|
| 1504 | if (hdg<0) hdg+=360; |
|---|
| 1505 | if (hdg>360) hdg-=360; |
|---|
| 1506 | //fixed=true; |
|---|
| 1507 | //absoluteFix=true; |
|---|
| 1508 | customBaseHeading=hdg; |
|---|
| 1509 | } |
|---|
| 1510 | |
|---|
| 1511 | private void nextSnapMode() { |
|---|
| 1512 | if (snapOn) { |
|---|
| 1513 | // turn off snapping if we are in fixed mode or no actile snapping line exist |
|---|
| 1514 | if (fixed || !active) { snapOn=false; unsetFixedMode(); } |
|---|
| 1515 | else setFixedMode(); |
|---|
| 1516 | } else { |
|---|
| 1517 | snapOn=true; |
|---|
| 1518 | unsetFixedMode(); |
|---|
| 1519 | } |
|---|
| 1520 | checkBox.setState(snapOn); |
|---|
| 1521 | customBaseHeading=-1; |
|---|
| 1522 | } |
|---|
| 1523 | |
|---|
| 1524 | private void enableSnapping() { |
|---|
| 1525 | snapOn = true; |
|---|
| 1526 | checkBox.setState(snapOn); |
|---|
| 1527 | customBaseHeading=-1; |
|---|
| 1528 | unsetFixedMode(); |
|---|
| 1529 | } |
|---|
| 1530 | |
|---|
| 1531 | private void toggleSnapping() { |
|---|
| 1532 | snapOn = !snapOn; |
|---|
| 1533 | checkBox.setState(snapOn); |
|---|
| 1534 | customBaseHeading=-1; |
|---|
| 1535 | unsetFixedMode(); |
|---|
| 1536 | } |
|---|
| 1537 | |
|---|
| 1538 | public void setFixedMode() { |
|---|
| 1539 | if (active) { |
|---|
| 1540 | fixed=true; |
|---|
| 1541 | } |
|---|
| 1542 | } |
|---|
| 1543 | |
|---|
| 1544 | |
|---|
| 1545 | public void unsetFixedMode() { |
|---|
| 1546 | fixed=false; |
|---|
| 1547 | absoluteFix=false; |
|---|
| 1548 | lastAngle=0; |
|---|
| 1549 | active=false; |
|---|
| 1550 | } |
|---|
| 1551 | |
|---|
| 1552 | public boolean isActive() { |
|---|
| 1553 | return active; |
|---|
| 1554 | } |
|---|
| 1555 | |
|---|
| 1556 | public boolean isSnapOn() { |
|---|
| 1557 | return snapOn; |
|---|
| 1558 | } |
|---|
| 1559 | |
|---|
| 1560 | private double getNearestAngle(double angle) { |
|---|
| 1561 | double delta,minDelta=1e5, bestAngle=0.0; |
|---|
| 1562 | for (int i=0; i < snapAngles.length; i++) { |
|---|
| 1563 | delta = getAngleDelta(angle,snapAngles[i]); |
|---|
| 1564 | if (delta < minDelta) { |
|---|
| 1565 | minDelta=delta; |
|---|
| 1566 | bestAngle=snapAngles[i]; |
|---|
| 1567 | } |
|---|
| 1568 | } |
|---|
| 1569 | if (Math.abs(bestAngle-360) < 1e-3) |
|---|
| 1570 | bestAngle=0; |
|---|
| 1571 | return bestAngle; |
|---|
| 1572 | } |
|---|
| 1573 | |
|---|
| 1574 | private double getAngleDelta(double a, double b) { |
|---|
| 1575 | double delta = Math.abs(a-b); |
|---|
| 1576 | if (delta>180) |
|---|
| 1577 | return 360-delta; |
|---|
| 1578 | else |
|---|
| 1579 | return delta; |
|---|
| 1580 | } |
|---|
| 1581 | |
|---|
| 1582 | private void unFixOrTurnOff() { |
|---|
| 1583 | if (absoluteFix) |
|---|
| 1584 | unsetFixedMode(); |
|---|
| 1585 | else |
|---|
| 1586 | toggleSnapping(); |
|---|
| 1587 | } |
|---|
| 1588 | |
|---|
| 1589 | MouseListener anglePopupListener = new PopupMenuLauncher( new JPopupMenu() { |
|---|
| 1590 | JCheckBoxMenuItem helperCb = new JCheckBoxMenuItem(new AbstractAction(tr("Show helper geometry")){ |
|---|
| 1591 | public void actionPerformed(ActionEvent e) { |
|---|
| 1592 | boolean sel=((JCheckBoxMenuItem) e.getSource()).getState(); |
|---|
| 1593 | Main.pref.put("draw.anglesnap.drawConstructionGeometry", sel); |
|---|
| 1594 | Main.pref.put("draw.anglesnap.drawProjectedPoint", sel); |
|---|
| 1595 | Main.pref.put("draw.anglesnap.showAngle", sel); |
|---|
| 1596 | init(); |
|---|
| 1597 | enableSnapping(); |
|---|
| 1598 | } |
|---|
| 1599 | }); |
|---|
| 1600 | JCheckBoxMenuItem projectionCb = new JCheckBoxMenuItem(new AbstractAction(tr("Snap to node projections")){ |
|---|
| 1601 | public void actionPerformed(ActionEvent e) { |
|---|
| 1602 | boolean sel=((JCheckBoxMenuItem) e.getSource()).getState(); |
|---|
| 1603 | Main.pref.put("draw.anglesnap.projectionsnap", sel); |
|---|
| 1604 | init(); |
|---|
| 1605 | enableSnapping(); |
|---|
| 1606 | } |
|---|
| 1607 | }); |
|---|
| 1608 | { |
|---|
| 1609 | helperCb.setState(Main.pref.getBoolean("draw.anglesnap.drawConstructionGeometry",true)); |
|---|
| 1610 | projectionCb.setState(Main.pref.getBoolean("draw.anglesnap.projectionsnapgvff",true)); |
|---|
| 1611 | add(helperCb); |
|---|
| 1612 | add(projectionCb);; |
|---|
| 1613 | add(new AbstractAction(tr("Disable")) { |
|---|
| 1614 | public void actionPerformed(ActionEvent e) { |
|---|
| 1615 | saveAngles("180"); |
|---|
| 1616 | init(); |
|---|
| 1617 | enableSnapping(); |
|---|
| 1618 | } |
|---|
| 1619 | }); |
|---|
| 1620 | add(new AbstractAction(tr("0,90,...")) { |
|---|
| 1621 | public void actionPerformed(ActionEvent e) { |
|---|
| 1622 | saveAngles("0","90","180"); |
|---|
| 1623 | init(); |
|---|
| 1624 | enableSnapping(); |
|---|
| 1625 | } |
|---|
| 1626 | }); |
|---|
| 1627 | add(new AbstractAction(tr("0,45,90,...")) { |
|---|
| 1628 | public void actionPerformed(ActionEvent e) { |
|---|
| 1629 | saveAngles("0","45","90","135","180"); |
|---|
| 1630 | init(); |
|---|
| 1631 | enableSnapping(); |
|---|
| 1632 | } |
|---|
| 1633 | }); |
|---|
| 1634 | add(new AbstractAction(tr("0,30,45,60,90,...")) { |
|---|
| 1635 | public void actionPerformed(ActionEvent e) { |
|---|
| 1636 | saveAngles("0","30","45","60","90","120","135","150","180"); |
|---|
| 1637 | init(); |
|---|
| 1638 | enableSnapping(); |
|---|
| 1639 | } |
|---|
| 1640 | }); |
|---|
| 1641 | } |
|---|
| 1642 | }) { |
|---|
| 1643 | @Override |
|---|
| 1644 | public void mouseClicked(MouseEvent e) { |
|---|
| 1645 | super.mouseClicked(e); |
|---|
| 1646 | if (e.getButton() == MouseEvent.BUTTON1) { |
|---|
| 1647 | toggleSnapping(); |
|---|
| 1648 | updateStatusLine(); |
|---|
| 1649 | } |
|---|
| 1650 | } |
|---|
| 1651 | }; |
|---|
| 1652 | } |
|---|
| 1653 | |
|---|
| 1654 | private class SnapChangeAction extends JosmAction { |
|---|
| 1655 | public SnapChangeAction() { |
|---|
| 1656 | super(tr("Angle snapping"), "anglesnap", |
|---|
| 1657 | tr("Switch angle snapping mode while drawing"), null, false); |
|---|
| 1658 | putValue("help", ht("/Action/Draw/AngleSnap")); |
|---|
| 1659 | } |
|---|
| 1660 | |
|---|
| 1661 | @Override |
|---|
| 1662 | public void actionPerformed(ActionEvent e) { |
|---|
| 1663 | if (snapHelper!=null) snapHelper.toggleSnapping(); |
|---|
| 1664 | } |
|---|
| 1665 | } |
|---|
| 1666 | } |
|---|