net/systemeD/potlatch2/controller/DragWay.as

   1 package net.systemeD.potlatch2.controller {
   2         import flash.events.*;
   3     import net.systemeD.potlatch2.EditController;
   4     import net.systemeD.halcyon.connection.*;
   5     import net.systemeD.halcyon.connection.actions.*;
   6         import net.systemeD.halcyon.Globals;
   7
   8     public class DragWay extends ControllerState {
   9         private var isDraggingStarted:Boolean = false;
  10                 private var enterTime:Number;
  11
  12         private var downX:Number;
  13         private var downY:Number;
  14                 private var dragstate:uint=NOT_MOVED;
  15                 private const NOT_DRAGGING:uint=0;
  16                 private const NOT_MOVED:uint=1;
  17                 private const DRAGGING:uint=2;
  18
  19         public function DragWay(way:Way, event:MouseEvent) {
  20             selectedWay = way;
  21             downX = event.localX;
  22             downY = event.localY;
  23                         enterTime = (new Date()).getTime();
  24         }
  25
  26        override public function processMouseEvent(event:MouseEvent, entity:Entity):ControllerState {
  27
  28             if (event.type==MouseEvent.MOUSE_UP) {
  29                 if (dragstate==DRAGGING) {
  30                   MainUndoStack.getGlobalStack().addAction(
  31                           new MoveWayAction(selectedWay, downX, downY, event.localX, event.localY, controller.map));
  32                 }
  33                 return new SelectedWay(selectedWay);
  34
  35                         } else if ( event.type == MouseEvent.MOUSE_MOVE) {
  36                                 // dragging
  37                                 if (dragstate==NOT_DRAGGING) {
  38                                         return this;
  39                                 } else if (dragstate==NOT_MOVED &&
  40                                                ((Math.abs(downX - event.localX) < 3 && Math.abs(downY - event.localY) < 3) ||
  41                                                 (new Date().getTime()-enterTime)<300)) {
  42                                         // ** add time check too
  43                                         return this;
  44                                 }
  45                                 dragstate=DRAGGING;
  46                 return dragTo(event);
  47
  48                         } else {
  49                                 // event not handled
  50                 return this;
  51                         }
  52         }
  53
  54         private function dragTo(event:MouseEvent):ControllerState {
  55                         selectedWay.dispatchEvent(new WayDraggedEvent(Connection.WAY_DRAGGED, selectedWay, event.localX-downX, event.localY-downY));
  56             return this;
  57         }
  58
  59                 public function forceDragStart():void {
  60                         dragstate=NOT_MOVED;
  61                 }
  62
  63         override public function enterState():void {
  64             controller.map.setHighlight(selectedWay, { highlight: true } );
  65                         Globals.vars.root.addDebug("**** -> "+this);
  66         }
  67         override public function exitState():void {
  68             controller.map.setHighlight(selectedWay, { highlight: false } );
  69                         Globals.vars.root.addDebug("**** <- "+this);
  70         }
  71         override public function toString():String {
  72             return "DragWay";
  73         }
  74
  75
  76     }
  77 }