public IMemento CreateMemento()
{
this.State.TypeOfPlay = (int)this.TypeOfPlay;
if (this.CurrentSong != null)
{
this.State.SongFilePath = this.CurrentSong?.FilePath;
this.State.Time = this.CurrentSongPosition.ToString();
}
MementoOfState memento = new MementoOfState();
memento.SetState(this.State);
return(memento);
}
private void Save()
{
MementoOfState memento = (MementoOfState)Player.Instance.CreateMemento();
FileStream fileStream = null;
try
{
BinaryFormatter binaryFormatter = new BinaryFormatter();
fileStream = new FileStream("data.xml", FileMode.OpenOrCreate);
binaryFormatter.Serialize(fileStream, memento);
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
finally
{
if (fileStream != null)
{
fileStream.Close();
}
}
}