namespace AntDesign.WPF.Utils
{
    using System;

    public static class UIElementUtil
    {
        public static double RoundLayoutValue(double value, double dpiScale)
        {
            double newValue;

            // If DPI == 1, don't use DPI-aware rounding.
            if (!DoubleUtil.AreClose(dpiScale, 1.0))
            {
                newValue = Math.Round(value * dpiScale) / dpiScale;
                // If rounding produces a value unacceptable to layout (NaN, Infinity or MaxValue), use the original value.
                if (double.IsNaN(newValue) ||
                    double.IsInfinity(newValue) ||
                    DoubleUtil.AreClose(newValue, double.MaxValue))
                {
                    newValue = value;
                }
            }
            else
            {
                newValue = Math.Round(value);
            }

            return newValue;
        }
    }
}