public void FinishGroup(bool finish = true)
{
if (_undoStack.Count > 0)
{
_undoStack.Push(_undoStack.Pop().WithSeparatorFlag(finish));
AfterAction.Fire(this, EventArgs.Empty);
}
}
/// <summary>Executes an action and adds it to the undo stack.</summary>
/// <param name="action">Action to take. Initially called with an argument of true.</param>
/// <param name="finishGroup">If you want to group multiple actions together
/// so that one undo command undoes all of them, this parameter should be
/// true only on the last action.</param>
/// <remarks>If there are any actions on the tentative stack, they are accepted
/// and grouped with this new action.</remarks>
public virtual void Do(string name, DoOrUndo action, bool finishGroup = true)
{
Performing = ActionState.Do;
if (action != null)
{
AcceptTentativeAction(false);
_undoStack.Push(new Command(name, action, finishGroup).Do());
_redoStack.Clear();
AfterAction.Fire(this, EventArgs.Empty);
// AfterAction(true);
}
}
public virtual bool Redo(bool run = true)
{
Performing = ActionState.Redo;
if (_redoStack.Count == 0)
{
return(false);
}
if (run)
{
do
{
_undoStack.Push(_redoStack.Pop().Redo());
} while (!_undoStack.Peek().FinishGroup);
AfterAction.Fire(this, EventArgs.Empty);
// AfterAction(true);
}
return(true);
}