/// <summary>
/// Undoes the last done command
/// </summary>
internal void Undo()
{
if (DoneCommands.Count == 0)
{
return;
}
D_Command c = DoneCommands.Pop();
c.ExecuteReverse();
UndoneCommands.Push(c);
}
/// <summary>
/// Redoes the last undone command
/// </summary>
internal void Redo()
{
if (UndoneCommands.Count == 0)
{
return;
}
D_Command c = UndoneCommands.Pop();
c.Execute();
DoneCommands.Push(c);
}
private void DoCommand(D_Command c)
{
UndoRedoC.Do(c);
UpdateUndoRedoCommands();
}
/// <summary>
/// Execute a command for the first time
/// </summary>
/// <param name="c">The new command</param>
internal void Do(D_Command c)
{
c.Execute();
DoneCommands.Push(c);
UndoneCommands.Clear();
}