added points Node getter and setter creators for Line and Polygon

src/Node.js

@@ -1179,6 +1179,10 @@
         this.addSetter(constructor, attr + UPPER_X, isTransform);
         this.addSetter(constructor, attr + UPPER_Y, isTransform);
     };
+    Kinetic.Node.addPointsGetterSetter = function(constructor, attr) {
+        this.addPointsGetter(constructor, attr);
+        this.addPointsSetter(constructor, attr);  
+    };
     Kinetic.Node.addRotationGetterSetter = function(constructor, attr, def, isTransform) {
         this.addRotationGetter(constructor, attr, def);
         this.addRotationSetter(constructor, attr, isTransform);    
@@ -1232,6 +1236,22 @@
             this[prefix + RGB](obj);
         };
     };
+    Kinetic.Node.addPointsSetter = function(constructor, attr) {
+        var method = SET + Kinetic.Util._capitalize(attr);
+        constructor.prototype[method] = function(val) {
+            var points = Kinetic.Util._getPoints(val);
+            this._setAttr('points', points);
+        };
+    };
+    Kinetic.Node.addPointsGetter = function(constructor, attr) {
+        var that = this,
+            method = GET + Kinetic.Util._capitalize(attr);
+           
+        constructor.prototype[method] = function(arg) {
+            var val = this.attrs[attr];
+            return val === undefined ? [] : val;  
+        };
+    };
     Kinetic.Node.addSetter = function(constructor, attr, isTransform) {
         var that = this,
             method = SET + Kinetic.Util._capitalize(attr);
@@ -1293,11 +1313,7 @@
            
         constructor.prototype[method] = function(arg) {
             var val = this.attrs[attr];
-            if (val === undefined) {
-                val = def; 
-            }
-
-            return val;    
+            return val === undefined ? def : val;  
         };
     };
     Kinetic.Node.addPointGetter = function(constructor, attr) {

src/shapes/Line.js

@@ -59,7 +59,11 @@
             }
 
             canvas.stroke(this);
-        },
+        }
+    };
+    Kinetic.Util.extend(Kinetic.Line, Kinetic.Shape);
+
+    Kinetic.Node.addPointsGetterSetter(Kinetic.Line, 'points');
     /**
      * set points array
      * @method
@@ -67,21 +71,10 @@
      * @param {Array} can be an array of point objects or an array
      *  of Numbers.  e.g. [{x:1,y:2},{x:3,y:4}] or [1,2,3,4]
      */
-        setPoints: function(val) {
-            var points = Kinetic.Util._getPoints(val);
-            this._setAttr('points', points);
-            this._points = points;
-        },
+
     /**
      * get points array
      * @method
      * @memberof Kinetic.Line.prototype
      */
-         // NOTE: cannot use getter method because we need to return a new
-         // default array literal each time because arrays are modified by reference
-        getPoints: function() {
-            return this.attrs.points || [];
-        }
-    };
-    Kinetic.Util.extend(Kinetic.Line, Kinetic.Shape);
 })();

src/shapes/Polygon.js

@@ -39,7 +39,11 @@
             }
             context.closePath();
             canvas.fillStroke(this);
-        },
+        }
+    };
+    Kinetic.Util.extend(Kinetic.Polygon, Kinetic.Shape);
+
+    Kinetic.Node.addPointsGetterSetter(Kinetic.Polygon, 'points');
     /**
      * set points array
      * @method
@@ -47,19 +51,10 @@
      * @param {Array} can be an array of point objects or an array
      *  of Numbers.  e.g. [{x:1,y:2},{x:3,y:4}] or [1,2,3,4]
      */
-        setPoints: function(val) {
-            this._setAttr('points', Kinetic.Util._getPoints(val));
-        },
+
     /**
      * get points array
      * @method
      * @memberof Kinetic.Polygon.prototype
      */
-         // NOTE: cannot use getter method because we need to return a new
-         // default array literal each time because arrays are modified by reference
-        getPoints: function() {
-            return this.attrs.points || [];
-        }
-    };
-    Kinetic.Util.extend(Kinetic.Polygon, Kinetic.Shape);
 })();

tests/js/unit/shapes/lineTests.js

@@ -1,5 +1,5 @@
 Test.Modules.LINE = {
-    'add line': function(containerId) {
+    '*add line': function(containerId) {
         var stage = new Kinetic.Stage({
             container: containerId,
             width: 578,
@@ -84,7 +84,7 @@ Test.Modules.LINE = {
         test(redLine.getPoints()[0].x === 4, 'redLine points is wrong');
         
     },
-    'add dashed line': function(containerId) {
+    '*add dashed line': function(containerId) {
         var stage = new Kinetic.Stage({
             container: containerId,
             width: 578,

tests/js/unit/shapes/polygonTests.js

@@ -1,5 +1,5 @@
-Test.Modules.POLYGON - {
-    'add polygon': function(containerId) {
+Test.Modules.POLYGON = {
+    '*add polygon': function(containerId) {
         var stage = new Kinetic.Stage({
             container: containerId,
             width: 578,