private static HintForm createHintForm(BoardInfo board, int x, int y, bool vertical)
{
var hint = new HintForm();
CoordinateActors xActors = new CoordinateActors
{
dimensionSelector = sz => sz.Width,
formExtentAssigner = coord => hint.Width = coord,
formStartAssigner = coord => hint.Left = coord
};
CoordinateActors yActors = new CoordinateActors
{
dimensionSelector = sz => sz.Height,
formExtentAssigner = coord => hint.Height = coord,
formStartAssigner = coord => hint.Top = coord
};
CoordinateActors len = vertical ? yActors : xActors;
CoordinateActors wid = vertical ? xActors : yActors;
var corner = board.getCellCorner(x, y);
var cellSize = board.getCellSize(x, y);
int hintWidth = 1;
int hintLength = len.dimensionSelector(cellSize);
var center = board.getCellCenter(x, y);
len.formStartAssigner(len.dimensionSelector(new Size(center)) + hintLength / 3);
wid.formStartAssigner(wid.dimensionSelector(new Size(center)) - hintWidth / 2);
hint.StartPosition = FormStartPosition.Manual;
hint.Width = 1;
hint.Height = 1;
hint.Show();
len.formExtentAssigner(hintLength / 3);
wid.formExtentAssigner(hintWidth);
hint.Hide();
return hint;
}