net/systemeD/halcyon/connection/actions/MergeNodesAction.as

   1 package net.systemeD.halcyon.connection.actions\r
   2 {\r
   3         import net.systemeD.halcyon.connection.*;\r
   4 \r
   5 \r
   6         public class MergeNodesAction extends CompositeUndoableAction {\r
   7         // Node2's tags are merged into node1, then node2 is deleted.       \r
   8         private var node1:Node;\r
   9         private var node2:Node;\r
  10         static public var lastProblemTags:Array;\r
  11     \r
  12         public function MergeNodesAction(destnode:Node, sourcenode:Node) {\r
  13             super("Merge nodes "+destnode.id+" "+sourcenode.id);\r
  14             this.node1 = destnode;\r
  15             this.node2 = sourcenode;\r
  16             lastProblemTags=null;\r
  17         }\r
  18         \r
  19         public override function doAction():uint {\r
  20 \r
  21             super.clearActions();\r
  22             node1.suspend();\r
  23 \r
  24 //            mergeRelations(); TODO\r
  25             lastProblemTags= node1.mergeTags(node2,push); // TODO use to warn user\r
  26             node2.replaceWith(node1, push);\r
  27             node2.remove(push);\r
  28 \r
  29             super.doAction();\r
  30             node1.resume();\r
  31             \r
  32             return SUCCESS;\r
  33         }\r
  34 \r
  35         public override function undoAction():uint {\r
  36             node1.suspend();\r
  37             super.undoAction();\r
  38             node1.resume();\r
  39             \r
  40             return SUCCESS;\r
  41         }\r
  42         \r
  43         public function mergeRelations():void {\r
  44             for each (var r:Relation in node2.parentRelations) {\r
  45                 // ** needs to copy roles as well\r
  46                 if (r.findEntityMemberIndex(node1)==-1) {\r
  47                     r.appendMember(new RelationMember(node1, ''), push);\r
  48                 }\r
  49             }\r
  50         }\r
  51     }\r
  52 \r
  53 }