net/systemeD/potlatch2/controller/DrawWay.as

   1 package net.systemeD.potlatch2.controller {
   2         import flash.events.*;
   3         import flash.geom.*;
   4         import net.systemeD.potlatch2.EditController;
   5         import net.systemeD.halcyon.connection.*;
   6         import net.systemeD.halcyon.Elastic;
   7
   8         public class DrawWay extends SelectedWay {
   9                 private var elastic:Elastic;
  10                 private var editEnd:Boolean;
  11
  12                 public function DrawWay(way:Way, editEnd:Boolean) {
  13                         super(way);
  14                         this.editEnd = editEnd;
  15                 }
  16
  17                 override public function processMouseEvent(event:MouseEvent, entity:Entity):ControllerState {
  18                         var mouse:Point;
  19                         var node:Node;
  20                         var focus:Entity = NoSelection.getTopLevelFocusEntity(entity);
  21                         if ( event.type == MouseEvent.CLICK ) {
  22                                 if ( focus == null ) {
  23                                         node = createAndAddNode(event);
  24                                         resetElastic(node);
  25                                 } else if ( focus is Node ) {
  26                                         appendNode(focus as Node);
  27                                 } else if ( focus is Way ) {
  28                                         node = createAndAddNode(event);
  29                                         Way(focus).insertNodeAtClosestPosition(node, true);
  30                                         resetElastic(node);
  31                                 }
  32                         } else if ( event.type == MouseEvent.MOUSE_MOVE ) {
  33                                 mouse = new Point(
  34                                                   controller.map.coord2lon(event.localX),
  35                                                   controller.map.coord2latp(event.localY));
  36                                 elastic.end = mouse;
  37                         }
  38
  39                         return this;
  40                 }
  41
  42                 protected function resetElastic(node:Node):void {
  43                         var mouse:Point = new Point(node.lon, node.latp);
  44                         elastic.start = mouse;
  45                         elastic.end = mouse;
  46                 }
  47
  48                 override public function processKeyboardEvent(event:KeyboardEvent):ControllerState {
  49                         if ( event.keyCode == 13 || event.keyCode == 27 )
  50                                 return new SelectedWay(selectedWay);
  51                         return this;
  52                 }
  53
  54                 public function createAndAddNode(event:MouseEvent):Node {
  55                         var lat:Number = controller.map.coord2lat(event.localY);
  56                         var lon:Number = controller.map.coord2lon(event.localX);
  57                         var node:Node = controller.connection.createNode({}, lat, lon);
  58                         appendNode(node);
  59                         return node;
  60                 }
  61
  62                 protected function appendNode(node:Node):void {
  63                         if ( editEnd )
  64                                 selectedWay.appendNode(node);
  65                         else
  66                                 selectedWay.insertNode(0, node);
  67                 }
  68
  69                 override public function enterState():void {
  70                         super.enterState();
  71
  72                         var node:Node = selectedWay.getNode(editEnd ? selectedWay.length - 1 : 0);
  73                         var start:Point = new Point(node.lon, node.latp);
  74                         elastic = new Elastic(controller.map, start, start);
  75                 }
  76                 override public function exitState():void {
  77                         super.exitState();
  78                         elastic.removeSprites();
  79                         elastic = null;
  80                 }
  81                 override public function toString():String {
  82                         return "DrawWay";
  83                 }
  84         }
  85 }