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