public T LoadFromUndoStack()
{
if (IsUndoStackEmpty)
{
return(null);
}
using (MemoryStream memStream = new MemoryStream(undoStack.Pop()))
{
var ret = bf.Deserialize(memStream) as T ?? throw new InvalidCastException();
UpdateUndo?.Invoke(this, EventArgs.Empty);
return(ret);
}
}
public T LoadFromUndoStack()
{
if (IsUndoStackEmpty)
{
return(null);
}
using (MemoryStream memStream = new MemoryStream(undoStack.Pop())) {
#pragma warning disable SYSLIB0011 // 类型或成员已过时
var ret = bf.Deserialize(memStream) as T ?? throw new InvalidCastException();
#pragma warning restore SYSLIB0011 // 类型或成员已过时
UpdateUndo?.Invoke(this, EventArgs.Empty);
return(ret);
}
}
public void SaveToUndoStack(T fileInfoCollection, bool clearRedoStack = true, [CallerMemberName] string caller = "", [CallerLineNumber] int line = 0)
{
using (MemoryStream memStream = new MemoryStream())
{
bf.Serialize(memStream, fileInfoCollection ?? throw new ArgumentNullException());
undoStack.Push(memStream.ToArray());
}
if (clearRedoStack)
{
ClearRedoStack();
}
UpdateUndo?.Invoke(this, EventArgs.Empty);
}