public void Execute()
        {
            if (screenModel.Layout != ScreenLayoutType.TRIPLE)
            {
                return;
            }

            PlaceholderModel   placeholder   = collectionModel.Get(args.PlaceholderId);
            ScreenPositionType currentScreen = ScreenUtils.GetScreen(placeholder);

            R3ePoint screenOffset = ScreenUtils.ToScreenOffset(placeholder, args.ScreenType);
            R3ePoint newPosition  = new R3ePoint(placeholder.Position.X + screenOffset.X, placeholder.Position.Y + screenOffset.Y);

            if (!newPosition.Equals(placeholder.Position))
            {
                placeholder.Move(newPosition);
            }
        }
        public void Execute()
        {
            PlaceholderModel placeholder = collectionModel.Get(args.View.Model.Id);

            placeholder.Move(moveValidator.GetValidPosition(placeholder, GetR3eLocation(args.Point)));
        }