using ShrlAlgoToolkit.Core.Assists;

using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Reflection;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Media.Imaging;

namespace ShrlAlgoToolkit.Core.Extensions;

public static class ImageExtensions
{



    /// <summary>
    /// 位图转图片
    /// </summary>
    /// <param name="bitmap"></param>
    /// <returns></returns>
    /// <exception cref="ArgumentNullException"></exception>
    public static BitmapImage ToBitmapImage(this Bitmap bitmap)
    {
        if (bitmap is null)
        {
            throw new ArgumentNullException(nameof(bitmap));
        }

        using var ms = new MemoryStream();
        bitmap.Save(ms, ImageFormat.Png);

        ms.Position = 0;

        var result = new BitmapImage();

        result.BeginInit();

        result.StreamSource = ms;

        result.CacheOption = BitmapCacheOption.OnLoad;

        result.EndInit();

        return result;
    }
    /// <summary>
    /// 位图转像素集
    /// </summary>
    /// <param name="bitmap"></param>
    /// <returns></returns>
    public static BitmapSource ToBitmapSource(this Bitmap bitmap)
    {
        return bitmap == null
            ? null
            : Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
    }

    /// <summary>
    ///     Icon转BitmapSource
    /// </summary>
    /// <param name="icon"></param>
    /// <returns></returns>
    public static BitmapSource ToBitmapSource(this Icon icon)
    {
        return Imaging.CreateBitmapSourceFromHIcon(
            icon.Handle,
            new Int32Rect(0, 0, icon.Width, icon.Height),
            BitmapSizeOptions.FromWidthAndHeight(icon.Width, icon.Height)
        );
    }

}