net/systemeD/potlatch2/controller/SelectedWay.as

   1 package net.systemeD.potlatch2.controller {
   2         import flash.events.*;
   3         import flash.display.DisplayObject;
   4         import flash.ui.Keyboard;
   5     import net.systemeD.potlatch2.EditController;
   6     import net.systemeD.potlatch2.tools.Parallelise;
   7     import net.systemeD.potlatch2.tools.Quadrilateralise;
   8     import net.systemeD.potlatch2.tools.Simplify;
   9     import net.systemeD.halcyon.connection.*;
  10         import net.systemeD.halcyon.MapPaint;
  11         import net.systemeD.halcyon.Globals;
  12
  13     public class SelectedWay extends ControllerState {
  14         protected var initWay:Way;
  15
  16         public function SelectedWay(way:Way) {
  17             initWay = way;
  18         }
  19
  20         protected function selectWay(way:Way):void {
  21             if ( way == selectedWay )
  22                 return;
  23
  24             clearSelection();
  25             controller.setSelectedEntity(way);
  26             controller.map.setHighlight(way, { selected: true, showNodes: true, hover: false });
  27             selectedWay = way;
  28             initWay = way;
  29         }
  30
  31         protected function clearSelection():void {
  32             if ( selectedWay != null ) {
  33                 controller.map.setHighlight(selectedWay, { selected: false, showNodes: false, hover: false });
  34                 controller.setSelectedEntity(null);
  35                 selectedWay = null;
  36             }
  37         }
  38
  39         override public function processMouseEvent(event:MouseEvent, entity:Entity):ControllerState {
  40                         if (event.type==MouseEvent.MOUSE_MOVE || event.type==MouseEvent.ROLL_OVER || event.type==MouseEvent.MOUSE_OUT) { return this; }
  41             var focus:Entity = getTopLevelFocusEntity(entity);
  42
  43             if ( event.type == MouseEvent.MOUSE_UP && entity is Node && event.shiftKey ) {
  44                                 // start new way
  45                                 var way:Way = controller.connection.createWay({}, [entity], MainUndoStack.getGlobalStack().addAction);
  46                                 return new DrawWay(way, true, false);
  47                         } else if ( event.type == MouseEvent.MOUSE_DOWN && entity is Way && event.ctrlKey ) {
  48                                 // merge way
  49                                 return mergeWith(entity as Way);
  50                         } else if ( event.type == MouseEvent.MOUSE_DOWN && entity is Way && focus==selectedWay && event.shiftKey) {
  51                                 // insert node within way (shift-click)
  52                 var d:DragWayNode=new DragWayNode(selectedWay, addNode(event), event, true);
  53                                 d.forceDragStart();
  54                                 return d;
  55                         }
  56                         var cs:ControllerState = sharedMouseEvents(event, entity);
  57                         if (cs) return cs;
  58                         return this;
  59         }
  60
  61                 override public function processKeyboardEvent(event:KeyboardEvent):ControllerState {
  62                         switch (event.keyCode) {
  63                                 case 80:                                        return new SelectedParallelWay(selectedWay);
  64 //                              var p:Parallelise=new Parallelise(selectedWay); p.draw(0.001); return this;
  65                                 case 81:                                        Quadrilateralise.quadrilateralise(selectedWay); return this;
  66                 case 82:                    selectedWay.reverseNodes(MainUndoStack.getGlobalStack().addAction); return this;
  67                 case 89:                    Simplify.simplify(selectedWay, controller.map, true); return this;
  68                                 case Keyboard.BACKSPACE:        if (event.shiftKey) { return deleteWay(); } break;
  69                                 case Keyboard.DELETE:           if (event.shiftKey) { return deleteWay(); } break;
  70                         }
  71                         return this;
  72                 }
  73
  74         protected function addNode(event:MouseEvent):int {
  75             trace("add node");
  76             var lat:Number = controller.map.coord2lat(event.localY);
  77             var lon:Number = controller.map.coord2lon(event.localX);
  78             var undo:CompositeUndoableAction = new CompositeUndoableAction("Insert node");
  79             var node:Node = controller.connection.createNode({}, lat, lon, undo.push);
  80             var index:int = selectedWay.insertNodeAtClosestPosition(node, true, undo.push);
  81             MainUndoStack.getGlobalStack().addAction(undo);
  82                         return index;
  83         }
  84
  85                 protected function mergeWith(otherWay:Way):ControllerState {
  86                         var way1:Way;
  87                         var way2:Way;
  88                         if ( selectedWay.id < otherWay.id && selectedWay.id >= 0 ) {
  89                             way1 = selectedWay;
  90                             way2 = otherWay;
  91                         } else {
  92                             way1 = otherWay;
  93                             way2 = selectedWay;
  94                         }
  95
  96                         var undo:Function = MainUndoStack.getGlobalStack().addAction;
  97
  98                         // find common point
  99                         if (way1 == way2) { return this; }
 100                         if      (way1.getNode(0)   ==way2.getNode(0)   ) { way1.mergeWith(way2,0,0,undo); }
 101                         else if (way1.getNode(0)   ==way2.getLastNode()) { way1.mergeWith(way2,0,way2.length-1,undo); }
 102                         else if (way1.getLastNode()==way2.getNode(0)   ) { way1.mergeWith(way2,way1.length-1,0,undo); }
 103                         else if (way1.getLastNode()==way2.getLastNode()) { way1.mergeWith(way2,way1.length-1,way2.length-1,undo); }
 104                         return new SelectedWay(way1);
 105                 }
 106
 107                 public function deleteWay():ControllerState {
 108                         selectedWay.remove(MainUndoStack.getGlobalStack().addAction);
 109                         return new NoSelection();
 110                 }
 111
 112         override public function enterState():void {
 113             selectWay(initWay);
 114                         Globals.vars.root.addDebug("**** -> "+this+" "+selectedWay.id);
 115         }
 116         override public function exitState():void {
 117             clearSelection();
 118                         Globals.vars.root.addDebug("**** <- "+this);
 119         }
 120
 121         override public function toString():String {
 122             return "SelectedWay";
 123         }
 124
 125     }
 126 }