Free positioning

mindplot/src/main/javascript/layout/Node.js

@@ -40,7 +40,6 @@ mindplot.layout.Node = new Class({
     },
 
     isFree: function() {
-        var result = this._getProperty('free');
         return this._getProperty('free');
     },
 
@@ -48,6 +47,10 @@ mindplot.layout.Node = new Class({
         return this._isPropertyChanged('free');
     },
 
+    hasFreeDisplacementChanged: function() {
+        return this._isPropertyChanged('freeDisplacement');
+    },
+
     setShrunken: function(value) {
         this._setProperty('shrink', value);
     },
@@ -75,6 +78,13 @@ mindplot.layout.Node = new Class({
         }
     },
 
+    resetFreeState : function() {
+        var prop = this._properties['freeDisplacement'];
+        if (prop) {
+            prop.hasChanged = false;
+        }
+    },
+
     getOrder: function() {
         return this._getProperty('order');
     },