// Deserialize component defined in the ComponentNode
public Component Deserialize(XmlNode ComponentNode)
{
// Find type from component nodes name
Assembly a = Assembly.Load(DependencyMap[ComponentNode.LocalName]);
Type t = a.GetType(ComponentNode.LocalName);
// Create an instance of the type and a SerializationData object
Component component = (Component)Activator.CreateInstance(t);
SerializationData data = new SerializationData(this, null);
// For each field defined, get its value and add the field to SerializationData
foreach (XmlNode child in ComponentNode.ChildNodes)
{
// Make name and object values, and get
// the name from the 0 attribute.
string name = child.Attributes[0].Value;
object value = null;
// If the field node contains text only, it's a value type
// and we can set the object directly
if (child.ChildNodes[0].NodeType == XmlNodeType.Text)
value = parse(child);
// Otherwise we need to recreate a more complex object from the data
else if (child.ChildNodes[0].NodeType == XmlNodeType.Element)
value = parseTree(child.FirstChild);
// Save the field to the SerializationData
data.AddData(name, value);
}
// Tell the component to load from the data
component.RecieveSerializationData(data);
return component;
}
// Returns a SerializationData a Serializer can use to save the state
// of the object to an Xml file
public SerializationData GetSerializationData(Serializer Serializer, XmlWriter Writer)
{
// Create a new SerializationData
SerializationData data = new SerializationData(Serializer, Writer);
// Add the basic Component values
data.AddData("Component.DrawOrder", DrawOrder);
data.AddData("Component.ParentScreen", Parent.Name);
data.AddData("Component.Visible", Visible);
data.AddData("Component.Name", this.Name);
// Tell serializer that it will need to know the type of component
data.AddDependency(this.GetType());
// Construct a ServiceData
ServiceData sd = new ServiceData();
// If this object is a service, find out what the provider type is
// (the type used to look up the services)
Type serviceType;
if (Engine.Services.IsService(this, out serviceType))
{
// Tell serializer about provider type
data.AddDependency(serviceType);
// Set data to ServiceData
sd.IsService = true;
sd.Type = serviceType.FullName;
}
// Add the ServiceData to the SerializationData
data.AddData("Component.ServiceData", sd);
// Call the overridable function that allows components to provide data
SaveSerializationData(data);
return data;
}