public static IVisualNode Create(IGraphController graphController, IStorage storage)
{
if (graphController == null || storage == null)
throw new ArgumentNullException("graphcontroller, storage");
storage.Seek(12, SeekOrigin.Current); //Skip NodeSignature
NodeType type = (NodeType)storage.ReadInteger(FieldCode.NodeType);
storage.Seek(-24, SeekOrigin.Current); //Shift cursor back to the start point of reading NodeSignature
VisualNode node = null;
switch (type)
{
case NodeType.CodeBlock:
node = new CodeBlockNode(graphController);
node.Deserialize(storage);
break;
case NodeType.Condensed:
node = new CondensedNode(graphController);
node.Deserialize(storage);
break;
case NodeType.Driver:
node = new DriverNode(graphController);
node.Deserialize(storage);
break;
case NodeType.Function:
node = new FunctionNode(graphController);
node.Deserialize(storage);
break;
case NodeType.Identifier:
node = new IdentifierNode(graphController);
node.Deserialize(storage);
break;
case NodeType.Property:
node = new PropertyNode(graphController);
node.Deserialize(storage);
break;
case NodeType.Render:
node = new RenderNode(graphController);
node.Deserialize(storage);
break;
default:
throw new ArgumentException("Invalid 'nodeType'");
}
return node;
}
public void TestDeserilaizeOperationException()
{
IGraphController graphController = new GraphController(null);
IStorage storage = new BinaryStorage();
IVisualNode node = new CodeBlockNode(graphController, "Double Click and Type");
ulong signature = Utilities.MakeEightCC('T', 'E', 'S', 'T', ' ', ' ', ' ', ' ');
storage.WriteUnsignedInteger(signature, 21);
storage.Seek(0, SeekOrigin.Begin);
bool result = node.Deserialize(storage);
Assert.AreEqual(result, false);
}
public void TestSerializeDeserialize()
{
IGraphController graphController = new GraphController(null);
IStorage storage = new BinaryStorage();
IVisualNode node1 = new CodeBlockNode(graphController, "Double Click and Type");
IVisualNode node2 = new CodeBlockNode(graphController, "Double Click and Type");
node1.Serialize(storage);
storage.Seek(0, SeekOrigin.Begin);
node2.Deserialize(storage);
Assert.AreEqual(NodeType.CodeBlock, node2.VisualType);
Assert.AreEqual(node1.NodeId, node2.NodeId);
Assert.AreEqual(true, ((CodeBlockNode)node2).Dirty);
Assert.AreEqual(((CodeBlockNode)node1).Text, ((CodeBlockNode)node2).Text);
Assert.AreEqual(((CodeBlockNode)node1).Caption, ((CodeBlockNode)node2).Caption);
Assert.AreEqual(node1.X, node2.X);
Assert.AreEqual(node1.Y, node2.Y);
}
public void TestDeserializeNullException()
{
IGraphController graphController = new GraphController(null);
IStorage storage = null;
IVisualNode node = new CodeBlockNode(graphController, "Double Click and Type");
Assert.Throws<ArgumentNullException>(() =>
{
node.Deserialize(storage);
});
}
