net/systemeD/potlatch2/controller/SelectedWayNode.as

   1 package net.systemeD.potlatch2.controller {
   2         import flash.events.*;
   3         import flash.ui.Keyboard;
   4     import net.systemeD.potlatch2.EditController;
   5     import net.systemeD.halcyon.connection.*;
   6         import net.systemeD.halcyon.Globals;
   7
   8     public class SelectedWayNode extends SelectedWay {
   9         protected var selectedNode:Node;
  10         protected var initNode:Node;
  11
  12         public function SelectedWayNode(way:Way,node:Node) {
  13                         super (way);
  14             initNode = node;
  15         }
  16
  17         protected function selectNode(way:Way,node:Node):void {
  18             if ( way == selectedWay && node == selectedNode )
  19                 return;
  20
  21             clearSelection();
  22             controller.setSelectedEntity(node);
  23             controller.map.setHighlight(way, { showNodes: true, nodeSelected: node.id });
  24             selectedWay = way;   initWay  = way;
  25             selectedNode = node; initNode = node;
  26         }
  27
  28         override protected function clearSelection():void {
  29             if ( selectedNode != null ) {
  30                 controller.map.setHighlight(selectedWay, { selected: false, showNodes: false, nodeSelected: null });
  31                 controller.setSelectedEntity(null);
  32                 selectedNode = null;
  33                                 selectedWay = null;
  34             }
  35         }
  36
  37         override public function processMouseEvent(event:MouseEvent, entity:Entity):ControllerState {
  38                         if (event.type==MouseEvent.MOUSE_MOVE || event.type==MouseEvent.ROLL_OVER || event.type==MouseEvent.MOUSE_OUT) { return this; }
  39             var focus:Entity = NoSelection.getTopLevelFocusEntity(entity);
  40
  41             if ( event.type == MouseEvent.MOUSE_UP ) {
  42                                 if ( entity is Node && event.shiftKey ) {
  43                                         // start new way
  44                     var way:Way = controller.connection.createWay({}, [entity],
  45                         MainUndoStack.getGlobalStack().addAction);
  46                     return new DrawWay(way, true, false);
  47                                 } else if ( entity is Node && focus == selectedWay ) {
  48                                         // select node within way
  49                                         return selectOrEdit(selectedWay, Node(entity));
  50                 } else if ( entity is Way ) {
  51                                         // select way
  52                                         return new SelectedWay(Way(entity));
  53                 } else if ( focus == null && map.dragstate!=map.DRAGGING ) {
  54                     return new NoSelection();
  55                                 }
  56             } else if ( event.type == MouseEvent.MOUSE_DOWN ) {
  57                                 if ( entity is Way && focus==selectedWay && event.shiftKey) {
  58                                         // insert node within way (shift-click)
  59                         var d:DragWayNode=new DragWayNode(selectedWay, addNode(event), event, true);
  60                                         d.forceDragStart();
  61                                         return d;
  62                                 } else if ( entity is Node && entity.hasParent(selectedWay) ) {
  63                     return new DragWayNode(selectedWay, Node(entity), event, false);
  64                                 } else if ( focus is Node ) {
  65                                         return new DragPOINode(entity as Node,event,false);
  66                                 }
  67             }
  68
  69             return this;
  70         }
  71
  72                 override public function processKeyboardEvent(event:KeyboardEvent):ControllerState {
  73                         switch (event.keyCode) {
  74                                 case 88:                                        return splitWay();
  75                                 case Keyboard.BACKSPACE:        return deleteNode();
  76                                 case Keyboard.DELETE:           return deleteNode();
  77                         }
  78                         return this;
  79                 }
  80
  81                 override public function enterState():void {
  82             selectNode(initWay,initNode);
  83                         Globals.vars.root.addDebug("**** -> "+this);
  84         }
  85                 override public function exitState():void {
  86             clearSelection();
  87                         Globals.vars.root.addDebug("**** <- "+this);
  88         }
  89
  90         override public function toString():String {
  91             return "SelectedWayNode";
  92         }
  93
  94         public static function selectOrEdit(selectedWay:Way, entity:Node):ControllerState {
  95                 var isFirst:Boolean = false;
  96                         var isLast:Boolean = false;
  97                         isFirst = selectedWay.getNode(0) == entity;
  98                         isLast = selectedWay.getNode(selectedWay.length - 1) == entity;
  99                         if ( isFirst == isLast )    // both == looped, none == central node
 100                             return new SelectedWayNode(selectedWay, entity);
 101                         else
 102                             return new DrawWay(selectedWay, isLast, true);
 103         }
 104
 105                 public function splitWay():ControllerState {
 106                         // abort if start or end
 107                         if (selectedWay.getNode(0                   ) == selectedNode) { return this; }
 108                         if (selectedWay.getNode(selectedWay.length-1) == selectedNode) { return this; }
 109
 110                         // create new way
 111                         var newWay:Way = controller.connection.createWay(
 112                                 selectedWay.getTagsCopy(),
 113                                 selectedWay.sliceNodes(selectedWay.indexOfNode(selectedNode),selectedWay.length),
 114                                 MainUndoStack.getGlobalStack().addAction);
 115                         newWay.suspend();
 116                         selectedWay.suspend();
 117                         selectedWay.deleteNodesFrom(selectedWay.indexOfNode(selectedNode)+1);
 118
 119                         // copy relations
 120                         for each (var r:Relation in selectedWay.parentRelations) {
 121                                 // ** needs to copy roles as well
 122                                 r.appendMember(new RelationMember(newWay, ''));
 123                         }
 124                         newWay.resume();
 125                         selectedWay.resume();
 126
 127                         return new SelectedWay(selectedWay);
 128                 }
 129
 130                 public function deleteNode():ControllerState {
 131                         selectedNode.remove(MainUndoStack.getGlobalStack().addAction);
 132                         return new SelectedWay(selectedWay);
 133                 }
 134
 135     }
 136 }