Kinect Reception

using System;
using System.IO;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Threading;

namespace KinectReception.Controls
{
    /// <summary>
    /// Interaction logic for CameraView.xaml
    /// </summary>
    public partial class CameraView : UserControl
    {
        private DispatcherTimer _previewTimer;

        public bool IsWorking
        {
            get { return _previewTimer.IsEnabled; }
        }

        public CameraView()
        {
            this.InitializeComponent();

            Initialize();
        }

        public void Initialize()
        {
            _previewTimer = new DispatcherTimer();
            _previewTimer.Interval = Properties.Settings.Default.PreviewTimer;
            _previewTimer.Tick -= PreviewTimerTick;
            _previewTimer.Tick += new EventHandler(PreviewTimerTick);
        }

        void PreviewTimerTick(object sender, EventArgs e)
        {
            _previewTimer.Stop();
            Reset();
            this.Visibility = Visibility.Hidden;
        }

        private void Reset()
        {
            txtDisplayText.Text = Properties.Resources.PreviewTitle;
            txtScore.Text = string.Empty;
            PreviewPicture.Source = null;
            txtScore.Visibility = Visibility.Visible;
        }

        public void TakePicture(ImageSource imgSource)
        {
            txtScore.Visibility = Visibility.Hidden;
            SavePreview(imgSource);
        }

        public void TakePicture(ImageSource imgSource, int score)
        {
            txtScore.Text = string.Format(Properties.Resources.PreviewScoreText, score);
            SavePreview(imgSource);
        }

        public void TakePicture(ImageSource imgSource, string displayText, int score)
        {
            txtDisplayText.Text = displayText;
            txtScore.Text = string.Format(Properties.Resources.PreviewScoreText, score);
            SavePreview(imgSource);
        }

        private void SavePreview(ImageSource imgSource)
        {
            if (string.IsNullOrEmpty(Properties.Settings.Default.PicturesLibrary) || !Directory.Exists(Properties.Settings.Default.PicturesLibrary) || imgSource == null)
                return;
            else
            {
                var newPictureName = System.IO.Path.Combine(Properties.Settings.Default.PicturesLibrary,
                                                            string.Format("{0}.png", System.IO.Path.GetRandomFileName()));
                const int width = 640;
                const int height = 480;
                const int stride = width;
                byte[] pixels = new byte[height * stride];

                // Define the image palette
                var myPalette = BitmapPalettes.Halftone256;

                var image = (BitmapSource)imgSource;
                PreviewPicture.Source = image; // new DrawingImage(VisualTreeHelper.GetDrawing(KinectImage));

                this.Visibility = Visibility.Visible;
                _previewTimer.Start();

                using (var stream = new FileStream(newPictureName, FileMode.Create))
                {
                    var encoder = new PngBitmapEncoder();
                    encoder.Interlace = PngInterlaceOption.On;
                    encoder.Frames.Add(BitmapFrame.Create(image));
                    encoder.Save(stream);
                }
            }
        }

        //void TakePicture()
        //{
        //    //if (string.IsNullOrEmpty(Properties.Settings.Default.PicturesLibrary) || !Directory.Exists(Properties.Settings.Default.PicturesLibrary))
        //    //    return;
        //    //else
        //    //{
        //    //    var newPictureName = System.IO.Path.Combine(Properties.Settings.Default.PicturesLibrary,string.Format("{0}.png",System.IO.Path.GetRandomFileName()));
        //    //    int width = 640;
        //    //    int height = 480;
        //    //    int stride = width;
        //    //    byte[] pixels = new byte[height * stride];

        //    //    // Define the image palette
        //    //    BitmapPalette myPalette = BitmapPalettes.Halftone256;

        //    //    BitmapSource image = (BitmapSource)KinectImage.Source;
        //    //    PreviewPicture.Source = image;// new DrawingImage(VisualTreeHelper.GetDrawing(KinectImage));
        //    //    PreviewPanel.Visibility = Visibility.Visible;
        //    //    _previewTimer.Start();

        //    //    FileStream stream = new FileStream(newPictureName, FileMode.Create);
        //    //    PngBitmapEncoder encoder = new PngBitmapEncoder();                
        //    //    encoder.Interlace = PngInterlaceOption.On;
        //    //    encoder.Frames.Add(BitmapFrame.Create(image));
        //    //    encoder.Save(stream);

        //    //var stream = new FileStream(newPictureName, FileMode.Create);

        //    //var vis = new DrawingVisual();
        //    //var cont = vis.RenderOpen();
        //    //cont.DrawImage(PreviewPicture.Source, new Rect(new Size(640d, 480d)));
        //    //cont.Close();

        //    //var rtb = new RenderTargetBitmap((int)PreviewPicture.Width,(int)PreviewPicture.Height, 96d, 96d, PixelFormats.Default);
        //    //rtb.Render(vis);

        //    //var encoder = new PngBitmapEncoder();
        //    //encoder.Frames.Add(BitmapFrame.Create(rtb));
        //    //encoder.Save(stream);
        //    //stream.Close();
        //    // }
        //}
    }
}