/// <summary>
/// Copies the given elements to the dataObject.
/// </summary>
/// <param name="elements">Elements to copy.</param>
/// <param name="dataObject">DataObject to add the data to.</param>
/// <returns>DataObjects with the added data.</returns>
public static IDataObject Copy(ICollection <ModelElement> elements, IDataObject dataObject)
{
Guid guid = Guid.NewGuid();
ModelProtoGroup protoGroup = new ModelProtoGroup(elements, ModelProtoGroupOperation.Copy);
dataObject.SetData(ModelProtoGroup.DefaultDataFormatName, protoGroup);
dataObject.SetData(ModelProtoGroup.DefaultDataIdentifierName, guid);
// update cached prototype
cachedPrototype = new CachedModelProtoGroup(guid, protoGroup);
return(dataObject);
}
/// <summary>
/// Retrieves a model proto group from the given data object if one exists.
/// </summary>
/// <param name="dataObject">Data objects to retrieve a model proto group from.</param>
/// <returns>ModelProtoGroup instance or null.</returns>
public static ModelProtoGroup GetModelProtoGroup(IDataObject dataObject)
{
ModelProtoGroup group = null;
if (dataObject.GetDataPresent(ModelProtoGroup.DefaultDataFormatName))
{
Guid guid = Guid.Empty;
if (dataObject.GetDataPresent(ModelProtoGroup.DefaultDataIdentifierName))
{
guid = (System.Guid)dataObject.GetData(ModelProtoGroup.DefaultDataIdentifierName);
}
if ((cachedPrototype != null) && guid == cachedPrototype.InstanceId)
{
return(cachedPrototype.Prototype);
}
object obj = dataObject.GetData(ModelProtoGroup.DefaultDataFormatName);
group = obj as ModelProtoGroup;
cachedPrototype = new CachedModelProtoGroup(guid, group);
}
return(group);
}
/// <summary>
/// Retrieves a model proto group from the given data object if one exists.
/// </summary>
/// <param name="dataObject">Data objects to retrieve a model proto group from.</param>
/// <returns>ModelProtoGroup instance or null.</returns>
public static ModelProtoGroup GetModelProtoGroup(IDataObject dataObject)
{
ModelProtoGroup group = null;
if (dataObject.GetDataPresent(ModelProtoGroup.DefaultDataFormatName))
{
Guid guid = Guid.Empty;
if (dataObject.GetDataPresent(ModelProtoGroup.DefaultDataIdentifierName))
guid = (System.Guid)dataObject.GetData(ModelProtoGroup.DefaultDataIdentifierName);
if ((cachedPrototype != null) && guid == cachedPrototype.InstanceId)
return cachedPrototype.Prototype;
object obj = dataObject.GetData(ModelProtoGroup.DefaultDataFormatName);
group = obj as ModelProtoGroup;
cachedPrototype = new CachedModelProtoGroup(guid, group);
}
return group;
}
/// <summary>
/// Copies the given elements to the dataObject.
/// </summary>
/// <param name="elements">Elements to copy.</param>
/// <param name="dataObject">DataObject to add the data to.</param>
/// <returns>DataObjects with the added data.</returns>
public static IDataObject Copy(ICollection<ModelElement> elements, IDataObject dataObject)
{
Guid guid = Guid.NewGuid();
ModelProtoGroup protoGroup = new ModelProtoGroup(elements, ModelProtoGroupOperation.Copy);
dataObject.SetData(ModelProtoGroup.DefaultDataFormatName, protoGroup);
dataObject.SetData(ModelProtoGroup.DefaultDataIdentifierName, guid);
// update cached prototype
cachedPrototype = new CachedModelProtoGroup(guid, protoGroup);
return dataObject;
}
