public IFigure CloneFigure(ExternalizableFilter filter)
{
var persister = new Externalizer();
var mem = persister.Save(this, filter);
return(persister.Load(mem, null) as IFigure);
}
// ========================================
// constructor
// ========================================
internal ExternalizeContext(
Externalizer owner,
ExternalizableFilter externalizableFilter,
MementoFilter mementoFilter
)
{
_owner = owner;
_externalizableFilter = externalizableFilter;
_mementoFilter = mementoFilter;
}
// ========================================
// method
// ========================================
// --- save ---
public IMemento Save(object externalizable, ExternalizableFilter externalizableFilter)
{
var context = new ExternalizeContext(this, externalizableFilter, null);
return(context.CreateMemento(externalizable));
}