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

namespace vCloudUploaderDemo
{
    internal class BitmapHelper
    {
        public static Bitmap BytesToBitmap(byte[] bytes)
        {
            if (bytes == null)
            {
                return null;
            }

            var memory = new MemoryStream(bytes);
            var bitmap = (Bitmap)Bitmap.FromStream(memory);
            return bitmap;
        }

        public static byte[] BitmapToBytes(Bitmap bitmap)
        {
            if (bitmap == null)
            {
                return null;
            }

            using (var stream = new MemoryStream())
            {
                bitmap.Save(stream, ImageFormat.Bmp);
                var buffer = new byte[stream.Length];
                stream.Position = 0;
                stream.Read(buffer, 0, buffer.Length);
                return buffer;
            }
        }

        public static BitmapImage BytesToBitmapImage(byte[] bytes)
        {
            var bitmapImage = new BitmapImage();
            bitmapImage.BeginInit();
            bitmapImage.StreamSource = new MemoryStream(bytes);
            bitmapImage.EndInit();
            return bitmapImage;
        }

        public static BitmapImage BitmapToBitmapImage(Bitmap bitmap)
        {
            BitmapImage bmpimg = new BitmapImage();
            using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
            {
                bitmap.Save(ms, ImageFormat.Png);
                bmpimg.BeginInit();
                bmpimg.StreamSource = ms;
                bmpimg.CacheOption = BitmapCacheOption.OnLoad;
                bmpimg.EndInit();
                bmpimg.Freeze();
                ms.Dispose();
            }
            return bmpimg;
        }
    }
}