88 lines
3.3 KiB
C#
88 lines
3.3 KiB
C#
namespace AntDesign.WPF.Utils
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{
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using System.Windows;
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internal static class ThicknessUtil
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{
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/// <summary>
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/// Verifies if this Thickness contains only valid values
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/// The set of validity checks is passed as parameters.
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/// </summary>
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/// <param name='thick'>Thickness value</param>
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/// <param name='allowNegative'>allows negative values</param>
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/// <param name='allowNaN'>allows Double.NaN</param>
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/// <param name='allowPositiveInfinity'>allows Double.PositiveInfinity</param>
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/// <param name='allowNegativeInfinity'>allows Double.NegativeInfinity</param>
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/// <returns>Whether or not the thickness complies to the range specified</returns>
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public static bool IsValid(Thickness thick, bool allowNegative, bool allowNaN, bool allowPositiveInfinity, bool allowNegativeInfinity)
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{
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if (!allowNegative)
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{
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if (thick.Left < 0d || thick.Right < 0d || thick.Top < 0d || thick.Bottom < 0d)
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return false;
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}
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if (!allowNaN)
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{
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if (DoubleUtil.IsNaN(thick.Left) || DoubleUtil.IsNaN(thick.Right)
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|| DoubleUtil.IsNaN(thick.Top) || DoubleUtil.IsNaN(thick.Bottom))
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return false;
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}
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if (!allowPositiveInfinity)
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{
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if (double.IsPositiveInfinity(thick.Left) || double.IsPositiveInfinity(thick.Right)
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|| double.IsPositiveInfinity(thick.Top) || double.IsPositiveInfinity(thick.Bottom))
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{
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return false;
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}
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}
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if (!allowNegativeInfinity)
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{
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if (double.IsNegativeInfinity(thick.Left) || double.IsNegativeInfinity(thick.Right)
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|| double.IsNegativeInfinity(thick.Top) || double.IsNegativeInfinity(thick.Bottom))
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{
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return false;
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}
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}
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return true;
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}
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/// <summary>
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/// Method to add up the left and right size as width, as well as the top and bottom size as height
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/// </summary>
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/// <param name="thick">Thickness</param>
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/// <returns>Size</returns>
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public static Size CollapseThickness(Thickness thick)
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{
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return new Size(thick.Left + thick.Right, thick.Top + thick.Bottom);
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}
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/// <summary>
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/// Verifies if the Thickness contains only zero values
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/// </summary>
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/// <param name="thick">Thickness</param>
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/// <returns>Size</returns>
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public static bool IsZero(Thickness thick)
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{
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return DoubleUtil.IsZero(thick.Left) && DoubleUtil.IsZero(thick.Top)
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&& DoubleUtil.IsZero(thick.Right) && DoubleUtil.IsZero(thick.Bottom);
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}
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/// <summary>
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/// Verifies if all the values in Thickness are same
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/// </summary>
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/// <param name="thick">Thickness</param>
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/// <returns>true if yes, otherwise false</returns>
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public static bool IsUniform(Thickness thick)
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{
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var left = thick.Left;
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return DoubleUtil.AreClose(left, thick.Top)
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&& DoubleUtil.AreClose(left, thick.Right)
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&& DoubleUtil.AreClose(left, thick.Bottom);
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}
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}
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}
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