private IEnumerable <object> GetCompatibleData(IDataObject dataObject)
{
// try the local format first
IEnumerable <object> items = dataObject.GetData(typeof(object[])) as object[];
if (items != null && (AreCircuitItems(items) || AreTemplateItems(items)))
{
return(items);
}
// try serialized format
byte[] data = dataObject.GetData(CircuitFormat) as byte[];
if (data != null)
{
try
{
DomNodeSerializer serializer = new DomNodeSerializer();
IEnumerable <DomNode> deserialized = serializer.Deserialize(data, m_schemaLoader.GetNodeType);
items = Adapters.AsIEnumerable <object>(deserialized);
if (AreCircuitItems(items))
{
return(items);
}
}
catch /*(Exception ex)*/
{
// the app cannot recover when using output servce
//Outputs.WriteLine(OutputMessageType.Warning, ex.Message);
}
}
return(null);
}
/// <summary>
/// Copies selected items from the circuit</summary>
/// <returns>DataObject containing an enumeration of selected items</returns>
public object Copy()
{
// copy selected text in the selected annotation?
var annotationAdapter = m_viewingContext.Cast <AdaptableControl>().As <D2dAnnotationAdapter>();
if (annotationAdapter != null)
{
foreach (Annotation annotation in Selection.AsIEnumerable <Annotation>())
{
if (annotationAdapter.CanCopyText(annotation))
{
DataObject dataObjectText = new DataObject();
dataObjectText.SetText(annotationAdapter.TextSelected(annotation));
Clipboard.SetText(annotationAdapter.TextSelected(annotation));
return(dataObjectText);
}
}
}
if (m_instancingContext != null)
{
return(m_instancingContext.Copy());
}
// get the selected modules
HashSet <Element> modules = new HashSet <Element>(Selection.AsIEnumerable <Element>());
HashSet <object> itemsToCopy = new HashSet <object>(Adapters.AsIEnumerable <object>(modules));
// get selected connections between selected modules
foreach (Wire connection in Selection.AsIEnumerable <Wire>())
{
if (IsConnectionCopyable(connection, modules))
{
itemsToCopy.Add(connection);
}
}
// if no connections were added, look for copyable connections between the selected elements
if (itemsToCopy.Count == modules.Count)
{
foreach (Wire connection in m_circuitContainer.Wires)
{
if (IsConnectionCopyable(connection, modules))
{
itemsToCopy.Add(connection);
}
}
}
// add annotations
foreach (Annotation annotation in Selection.AsIEnumerable <Annotation>())
{
itemsToCopy.Add(Adapters.As <DomNode>(annotation));
}
// create format for local use
DataObject dataObject = new DataObject(Enumerable.ToArray(itemsToCopy));
// add a serializable format for the system clipboard
DomNodeSerializer serializer = new DomNodeSerializer();
byte[] data = serializer.Serialize(Adapters.AsIEnumerable <DomNode>(itemsToCopy));
dataObject.SetData(CircuitFormat, data);
return(dataObject);
}
