public override void saveState(object state)
{
UndoMemento memento = new UndoMemento()
{
State = new Computer(this.Name, this.X, this.Y, this.Width, this.Height, this.Type)
};
}
public override UndoMemento changeProperty(object state)
{
UndoMemento memento = new UndoMemento()
{
State = new Computer(this.Name, this.X, this.Y, this.Width, this.Height, this.Type)
};
X = x;
Y = y;
return(memento);
}
public UndoMemento ChangeType(string type)
{
UndoMemento memento = new UndoMemento()
{
State = new TypeClass()
{
type = this.Type
}, Command = new Action <object>(UndoChangeType)
};
Type = type;
return(memento);
}
public UndoMemento ChangeSize(double width, double height)
{
UndoMemento memento = new UndoMemento()
{
State = new Size()
{
Width = this.Width, Height = this.Height
}, Command = new Action <object>(UndoChangeSize)
};
Width = width;
Height = height;
return(memento);
}
// The method to change the object state and perform operation but also externalize the previous state
public UndoMemento ChangePosition(double x, double y)
{
UndoMemento memento = new UndoMemento()
{
State = new Position()
{
X = this.X, Y = this.Y
}, Command = new Action <object>(UndoChangePosition)
};
X = x;
Y = y;
return(memento);
}
public void swapUndo()
{
//Debug.Log("swapUndo:" + objectToUndo.name);
//Debug.Log(oppositeUndoMemento == null);
if (oppositeUndoMemento == null)
{
oppositeUndoMemento = createMementoFunc();
oppositeUndoMemento.save(objectToUndo);
}
undoMemento.restore(objectToUndo);
var lTemp = undoMemento;
undoMemento = oppositeUndoMemento;
oppositeUndoMemento = lTemp;
//Debug.Log(oppositeUndoMemento == null);
}
public UndoObject(Object pObjectToUndo, System.Func<UndoMemento> pCreateMementoFunc)
{
//Debug.Log("UndoObject:" + pObjectToUndo.name);
createMementoFunc = pCreateMementoFunc;
objectToUndo = pObjectToUndo;
undoMemento = createMementoFunc();
undoMemento.save(objectToUndo);
oppositeUndoMemento = null;
}
