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

namespace VisionCommonUI {
    public class BitmapConverter : IValueConverter {
        public object Convert(
                            object value,
                            Type targetType,
                            object parameter,
                            System.Globalization.CultureInfo culture) {
            if (value == null) return null;
            BitmapImage image;
            using (var memory = new MemoryStream()) {
                Bitmap bmp = (Bitmap)value;
                bmp.Save(memory, ImageFormat.Bmp);
                memory.Position = 0;

                var bitmapImage = new BitmapImage();
                bitmapImage.BeginInit();
                bitmapImage.StreamSource = memory;
                bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
                bitmapImage.EndInit();

                image = bitmapImage;
            }

            return image;
        }

        private static ImageFormat GetImgFormat(object parameter) {
            string format = (string)parameter;
            return format == "png" ? ImageFormat.Png
                                   : ImageFormat.Bmp;
        }

        public object ConvertBack(
                            object value,
                            Type targetType,
                            object parameter,
                            System.Globalization.CultureInfo culture) {
            throw new NotImplementedException();
        }
    }
}