ET++: Box::ColsRowsSize()

Box::ColsRowsSize() returns the number of rows and columns of a box. It is provided here to show a sample method of Box dealing with its grid structure. Note that the user need not specify the exact number of rows or columns desired-- if one is negative, it is computed from the other, and if both are negative, a roughly equal number of rows and columns is used.

Point Box::ColsRowsSize()
{
	int n= Size();
	if (colsrows.y <= 0 && colsrows.x <= 0) {
		int c= Math::Sqrt(n);
		return Point(c, (n-1)/c+1);
	}
	if (colsrows.y <= 0)
		return Point(colsrows.x, (n-1)/colsrows.x+1);
	if (colsrows.x <= 0)
		return Point((n-1)/colsrows.y+1, colsrows.y);
	return colsrows;
}

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