CentralizedControl/HandyControl/HandyControl_Shared/Tools/Extension/ValueExtension.cs

using System.Windows;
using HandyControl.Expression.Drawing;

namespace HandyControl.Tools.Extension;

public static class ValueExtension
{
    public static Thickness Add(this Thickness a, Thickness b) => new(a.Left + b.Left, a.Top + b.Top, a.Right + b.Right, a.Bottom + b.Bottom);

    public static bool IsZero(this Thickness thickness) =>
        MathHelper.IsZero(thickness.Left)
        && MathHelper.IsZero(thickness.Top)
        && MathHelper.IsZero(thickness.Right)
        && MathHelper.IsZero(thickness.Bottom);

    public static bool IsUniform(this Thickness thickness) =>
        MathHelper.AreClose(thickness.Left, thickness.Top)
        && MathHelper.AreClose(thickness.Left, thickness.Right)
        && MathHelper.AreClose(thickness.Left, thickness.Bottom);

    public static bool IsNaN(this double value) => double.IsNaN(value);
}