public override void MouseMoved(MouseEvent e)
{
int width = this._enclosing.GetWidth();
int height = this._enclosing.GetHeight();
int cellWidth = width / this._enclosing.columnCount;
int cellHeight = height / this._enclosing.rowCount;
int column = e.GetX() / cellWidth;
int row = e.GetY() / cellHeight;
this._enclosing.selectedCell = new Point(column, row);
this._enclosing.Repaint();
}