// Copyright (c) Six Labors.
// Licensed under the Six Labors Split License.

using System.Runtime.CompilerServices;

namespace SixLabors.Fonts {
  /// <summary>
  /// Extensions to <see cref="LayoutMode"/>.
  /// </summary>
  public static class LayoutModeExtensions
  {
      /// <summary>
      /// Gets a value indicating whether the layout mode is horizontal.
      /// </summary>
      /// <param name="mode">The layout mode.</param>
      /// <returns>The <see cref="bool"/>.</returns>
      [MethodImpl(MethodImplOptions.AggressiveInlining)]
      public static bool IsHorizontal(this LayoutMode mode)
          => mode is LayoutMode.HorizontalTopBottom or LayoutMode.HorizontalBottomTop;

      /// <summary>
      /// Gets a value indicating whether the layout mode is vertical.
      /// </summary>
      /// <param name="mode">The layout mode.</param>
      /// <returns>The <see cref="bool"/>.</returns>
      [MethodImpl(MethodImplOptions.AggressiveInlining)]
      public static bool IsVertical(this LayoutMode mode)
          => mode is LayoutMode.VerticalLeftRight or LayoutMode.VerticalRightLeft;

      /// <summary>
      /// Gets a value indicating whether the layout mode is vertical-mixed only.
      /// </summary>
      /// <param name="mode">The layout mode.</param>
      /// <returns>The <see cref="bool"/>.</returns>
      [MethodImpl(MethodImplOptions.AggressiveInlining)]
      public static bool IsVerticalMixed(this LayoutMode mode)
          => mode is LayoutMode.VerticalMixedLeftRight or LayoutMode.VerticalMixedRightLeft;
  }
}