Better NodeJS support (full stage support)

nodejs-demo.js

@@ -1,11 +1,13 @@
 var fs = require('fs'),
-    Kinetic = require('./kinetic');
+    Kinetic = require('./dist/kinetic-dev');
 
-var layer = new Kinetic.Layer({
-    width : 200,
-    height : 200
+var stage = new Kinetic.Stage({
+    width : 100,
+    height : 100
 });
 
+var layer = new Kinetic.Layer();
+stage.add(layer);
 var rect = new Kinetic.Rect({
     width : 100,
     height : 100,
@@ -21,9 +23,45 @@ var text = new Kinetic.Text({
 });
 layer.add(rect).add(text);
 layer.draw();
+stage.setSize({
+    width : 200,
+    height : 200
+});
 
-var stream = layer.createPNGStream();
-var file = fs.createWriteStream(__dirname + '/helloworld.png');
-stream.on('data', function(chunk) {
-  file.write(chunk);
-});
+// check tween works
+var tween = new Kinetic.Tween({
+    node : rect,
+    duration : 1,
+    x : -50
+});
+tween.play();
+
+setTimeout(function(){
+    stage.toDataURL({
+        callback: function(data){
+            // adding image to stage
+            var img = new Kinetic.window.Image();
+            img.onload = function() {
+                var image = new Kinetic.Image({
+                    image : img,
+                    x : 10
+                });
+                layer.add(image);
+                layer.draw();
+                // save stage to disk
+                stage.toDataURL({
+                    callback: function(data){
+                        console.log(1);
+                        var base64Data = data.replace(/^data:image\/png;base64,/,"");
+
+                        fs.writeFile("out.png", base64Data, 'base64', function(err) {
+                           console.log(err);
+                        });
+                    }
+                });
+            };
+            img.src = data;
+
+        }
+    });
+}, 1050);