public WorkAreaViewModel(NodeTypesManager _nodeTypes)
{
Scheme = new Main.Sceme.Scheme("test");
Nodes = new ObservableCollection <NodeViewModel>();
Connections = new ObservableCollection <object>();
NodeTypes = _nodeTypes;
}
/// <summary>
/// Deserialize object
/// </summary>
public void Load(Stream stream, NodeTypesManager _nodeTypes)
{
this.Connections.Clear();
this.Nodes.Clear();
XmlDocument doc = new XmlDocument();
doc.Load(stream);
Scheme = new Main.Sceme.Scheme(doc.DocumentElement.Attributes["name"].Value);
List <Tuple <string, string> > _connectionsToCreate = new List <Tuple <string, string> >();
// First create all nodes
foreach (XmlNode t in doc.DocumentElement.ChildNodes)
{
string nodeName = t.Attributes["name"].Value;
string nodeType = t.Attributes["nodeType"].Value;
string x = t.Attributes["x"].Value;
string y = t.Attributes["y"].Value;
var node = CreateNode(NodeTypes.GetNodeType(nodeType), Convert.ToDouble(x), Convert.ToDouble(y), false, nodeName);
foreach (XmlNode z in t.ChildNodes)
{
string portName = z.Name;
string value = z.Attributes["value"] == null ? null : z.Attributes["value"].Value;
string connected = z.Attributes["connected"] == null ? null : z.Attributes["connected"].Value;
if (connected != null)
{
_connectionsToCreate.Add(new Tuple <string, string>(nodeName + "+" + portName, connected));
}
else
{
// We can set const value here
InputPortViewModel port = node.InputPorts.FirstOrDefault((u) => u.PortName == portName);
if (port.Port.DataType == typeof(bool))
{
port.Val = Convert.ToBoolean(value);
continue;
}
if (port.Port.DataType == typeof(int))
{
port.Val = Convert.ToInt32(value);
continue;
}
throw new ArgumentException(string.Format("{0} can't be desirialized", value.GetType()));
}
}
}
// Create connections (all nodes are created before)
foreach (Tuple <string, string> conn in _connectionsToCreate)
{
string firstPortNode = conn.Item1.Split('+')[0];
string firstPort = conn.Item1.Split('+')[1];
string secondPortNode = conn.Item2.Split('+')[0];
string secondPort = conn.Item2.Split('+')[1];
PortViewModel first = Nodes.FirstOrDefault((r) => r.Name == firstPortNode).InputPorts.FirstOrDefault((u) => u.PortName == firstPort);
if (first == null)
{
first = Nodes.FirstOrDefault((r) => r.Name == firstPortNode).OutputPorts.FirstOrDefault((u) => u.PortName == firstPort);
}
PortViewModel second = Nodes.FirstOrDefault((r) => r.Name == secondPortNode).InputPorts.FirstOrDefault((u) => u.PortName == secondPort);
if (second == null)
{
second = Nodes.FirstOrDefault((r) => r.Name == secondPortNode).OutputPorts.FirstOrDefault((u) => u.PortName == secondPort);
}
CreateConnection(first, second);
}
}
