// Copyright (c) Six Labors.

// Licensed under the Six Labors Split License.

namespace SixLabors.ImageSharp.Drawing;

/// <summary>

/// Represents a boundary path exported from an integer region while retaining its rectangle-set form.

/// </summary>

/// <remarks>

/// Region clipping has two valid representations in this codebase: ordinary path geometry

/// and an exact integer rectangle set. <see cref="Region.ToPath()"/> must return an

/// <see cref="IPath"/>, but callers that are still in untransformed integer region space

/// can use this marker to continue exact region operations without converting the region

/// into generic polygon clipping. Once the path is transformed, the marker is dropped and

/// the result is treated as normal path geometry.

/// </remarks>

internal interface IRegionPath : IPath

{

/// <summary>

/// Gets the normalized non-overlapping rectangles that cover the same area as the boundary path.

/// </summary>

public IReadOnlyList<Rectangle> Rectangles { get; }

}