using System;
using System.Runtime.InteropServices;

namespace PaintDotNet.SystemLayer.GpcWrapper
{
    internal static class NativeStructs
    {
        [StructLayout(LayoutKind.Sequential)]
        public struct gpc_vertex                    /* Polygon vertex structure          */
        {
            public double x;            /* Vertex x component                */
            public double y;            /* vertex y component                */
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct gpc_vertex_list               /* Vertex list structure             */
        {
            public int num_vertices; /* Number of vertices in list        */
            public IntPtr vertex;       /* Vertex array pointer              */
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct gpc_polygon                   /* Polygon set structure             */
        {
            public int num_contours; /* Number of contours in polygon     */
            public IntPtr hole;         /* Hole / external contour flags     */
            public IntPtr contour;      /* Contour array pointer             */
        }
    }
}