public void PerformCommand(IUndoCommand command)
{
if (performingCommandSequence)
{
commandSequence.PerformCommand(command);
}
else
{
try
{
command.Perform();
index++;
commands.Insert(index, command);
if (index < capacity && commands.Count > index + 1)
{
commands.RemoveRange(index + 1, commands.Count - (index + 1));
}
if (commands.Count > capacity)
{
commands.RemoveRange(0, commands.Count - capacity);
}
CommandPerformed?.Invoke(this, new EventArgs());
}
catch (Exception ex)
{
HandleError(command, ex);
}
}
}
public void Redo()
{
if (index + 1 == commands.Count)
{
return;
}
IUndoCommand command = commands.ElementAt(index + 1);
try
{
command.Perform();
index++;
CommandPerformed?.Invoke(this, new EventArgs());
}
catch (Exception ex)
{
HandleError(command, ex);
}
}
