VPet/VPet.Solution/Utils/Utils.cs

using System.Windows.Media.Imaging;

namespace HKW.HKWUtils;

/// <summary>
/// 工具
/// </summary>
public static class Utils
{
    /// <summary>
    /// 解码像素宽度
    /// </summary>
    public const int DecodePixelWidth = 250;

    /// <summary>
    /// 解码像素高度
    /// </summary>
    public const int DecodePixelHeight = 250;
    public static char[] Separator { get; } = new char[] { '_' };

    //public static BitmapImage LoadImageToStream(string imagePath)
    //{
    //    BitmapImage bitmapImage = new();
    //    bitmapImage.BeginInit();
    //    bitmapImage.DecodePixelWidth = DecodePixelWidth;
    //    try
    //    {
    //        bitmapImage.StreamSource = new StreamReader(imagePath).BaseStream;
    //    }
    //    finally
    //    {
    //        bitmapImage.EndInit();
    //    }
    //    return bitmapImage;
    //}

    /// <summary>
    /// 载入图片至内存流
    /// </summary>
    /// <param name="imagePath">图片路径</param>
    /// <returns></returns>
    public static BitmapImage LoadImageToMemoryStream(string imagePath)
    {
        BitmapImage bitmapImage = new();
        bitmapImage.BeginInit();
        try
        {
            var bytes = File.ReadAllBytes(imagePath);
            bitmapImage.StreamSource = new MemoryStream(bytes);
            bitmapImage.DecodePixelWidth = DecodePixelWidth;
        }
        finally
        {
            bitmapImage.EndInit();
        }
        return bitmapImage;
    }

    /// <summary>
    /// 载入图片至内存流
    /// </summary>
    /// <param name="imageStream">图片流</param>
    /// <returns></returns>
    public static BitmapImage LoadImageToMemoryStream(Stream imageStream)
    {
        BitmapImage bitmapImage = new();
        bitmapImage.BeginInit();
        try
        {
            bitmapImage.StreamSource = imageStream;
            bitmapImage.DecodePixelWidth = DecodePixelWidth;
        }
        finally
        {
            bitmapImage.EndInit();
        }
        return bitmapImage;
    }
}