public void Work()
{
var editor = new Editor("Hello");
var careTaker = new EditorCareTaker(editor);
editor.ShowCurrentState();
careTaker.SaveState();
editor.WriteSomething("I'm software developer");
careTaker.SaveState();
editor.WriteSomething("You have to forgot this message");
editor.WriteSomething("And this one");
editor.WriteSomething("Save this pls message");
careTaker.SaveState();
Console.WriteLine();
careTaker.ShowHistory();
Console.WriteLine();
careTaker.Undo();
editor.ShowCurrentState();
careTaker.Undo();
editor.ShowCurrentState();
careTaker.Undo();
editor.ShowCurrentState();
}
void CreateCareTaker()
{
careTaker = new EditorCareTaker();
var initial = new EditorMemento();
initial.SetText(LilypondText);
careTaker.Save(initial);
careTaker.MementoChanged += CareTaker_MementoChanged;
}
