private void StartButtonClick(object sender, RoutedEventArgs e)
{
MMazeBehaviorViewModel vm = DataContext as MMazeBehaviorViewModel;
if (vm != null)
{
vm.HandleStartButtonClick();
}
}
private void Window_Closed(object sender, EventArgs e)
{
MMazeBehaviorViewModel vm = DataContext as MMazeBehaviorViewModel;
if (vm != null)
{
vm.StopCamera();
vm.StopSession();
}
}
public MainWindow()
{
InitializeComponent();
//Load in the configuration file and the list of stages
MMazeConfiguration.GetInstance().LoadConfigurationFile();
MMazeConfiguration.GetInstance().LoadStages();
//Look for the camera in the list of available cameras
Accord.Video.DirectShow.FilterInfoCollection j = new Accord.Video.DirectShow.FilterInfoCollection(
Accord.Video.DirectShow.FilterCategory.VideoInputDevice);
List <Accord.Video.DirectShow.FilterInfo> my_list = j.Cast <Accord.Video.DirectShow.FilterInfo>().ToList();
Accord.Video.DirectShow.FilterInfo my_camera = my_list.Where(x => x.Name.Equals("HD USB Camera")).FirstOrDefault();
//Accord.Video.DirectShow.FilterInfo my_camera = my_list.Where(x => x.Name.Contains("Logitech")).FirstOrDefault();
if (my_camera != null)
{
//Set up the camera as the capture devices
var camera = new Accord.Video.DirectShow.VideoCaptureDevice(my_camera.MonikerString);
camera.NewFrame += Camera_NewFrame;
//Set camera properties
camera.SetCameraProperty(Accord.Video.DirectShow.CameraControlProperty.Exposure, -6, Accord.Video.DirectShow.CameraControlFlags.Manual);
//Select the proper video mode
for (int i = 0; i < camera.VideoCapabilities.Length; i++)
{
var selected_video_capabilities = camera.VideoCapabilities[i];
if (selected_video_capabilities.FrameSize.Width == _camera_frame_width && selected_video_capabilities.FrameSize.Height == _camera_frame_height)
{
camera.VideoResolution = selected_video_capabilities;
}
}
CameraVideoSourcePlayer.VideoSource = camera;
}
else
{
//Make sure the video source is null, indicating we do not have a camera connected
CameraVideoSourcePlayer.VideoSource = null;
}
//Set the data context for this window
//DataContext = new MMazeBehaviorViewModel(CameraVideoSourcePlayer);
DataContext = MMazeBehaviorViewModel.GetInstance();
MMazeBehaviorViewModel.GetInstance().SetupVideoSource(CameraVideoSourcePlayer);
//Start the camera
MMazeBehaviorViewModel vm = DataContext as MMazeBehaviorViewModel;
if (vm != null)
{
vm.StartCamera();
}
}
/// <summary>
/// Returns the singleton instance of the MMazeBehaviorSession class
/// </summary>
/// <returns></returns>
public static MMazeBehaviorViewModel GetInstance()
{
if (_instance == null)
{
lock (_instance_lock)
{
if (_instance == null)
{
_instance = new MMazeBehaviorViewModel();
}
}
}
return(_instance);
}
private void Camera_NewFrame(object sender, Accord.Video.NewFrameEventArgs eventArgs)
{
//Grab the video frame itself
var video_frame = eventArgs.Frame;
//Create a graphics object
using (Graphics g = Graphics.FromImage(video_frame))
{
//Grab a separate copy of the video frame to save to the file
var video_frame_copy = video_frame.Clone() as System.Drawing.Bitmap;
//Make a semi-transparent rectangle near the top of the image
SolidBrush b = new SolidBrush(System.Drawing.Color.FromArgb(128, System.Drawing.Color.CornflowerBlue));
g.FillRectangle(b, new RectangleF(0, 0, _camera_frame_width, _overlay_height));
//Draw each box
SolidBrush b2 = new SolidBrush(System.Drawing.Color.FromArgb(128, System.Drawing.Color.Red));
for (int i = 0; i < _box_lefts.Count; i++)
{
g.DrawRectangle(new System.Drawing.Pen(b2, 4), new System.Drawing.Rectangle(_box_lefts[i], _box_top, _box_width, _box_height));
}
//Draw some text under each box
List <string> _box_strings = new List <string>()
{
"Left NP",
"Left Prox",
"Right Prox",
"Right NP",
"Sound Cue"
};
for (int i = 0; i < _box_lefts.Count; i++)
{
g.DrawString(_box_strings[i], System.Drawing.SystemFonts.DefaultFont, b2, _box_lefts[i], _box_top + 110);
}
//Now let's draw some graphics based on the current state of the session.
var model = MMazeBehaviorSession.GetInstance();
var vm = MMazeBehaviorViewModel.GetInstance();
if (model != null && vm != null)
{
if (model.LeftNosepokeState)
{
g.FillRectangle(b2, _box_lefts[0], _box_top, _box_width, _box_height);
}
if (model.LeftProxState)
{
g.FillRectangle(b2, _box_lefts[1], _box_top, _box_width, _box_height);
}
if (model.RightProxState)
{
g.FillRectangle(b2, _box_lefts[2], _box_top, _box_width, _box_height);
}
if (model.RightNosepokeState)
{
g.FillRectangle(b2, _box_lefts[3], _box_top, _box_width, _box_height);
}
if (model.IsSoundPlaying)
{
g.FillRectangle(b2, _box_lefts[4], _box_top, _box_width, _box_height);
}
//Create blank canvas for saving image to video file
Bitmap resized_canvas = new Bitmap(video_frame_copy.Width, video_frame_copy.Height + _overlay_height);
//Create a new graphics object with the blank canvas
using (Graphics g2 = Graphics.FromImage(resized_canvas))
{
//Paste the video frame on the blank canvas
g2.DrawImage(video_frame_copy, 0, _overlay_height, video_frame_copy.Width, video_frame_copy.Height);
//Draw the overlay on the top of the image
g2.FillRectangle(b, new RectangleF(0, 0, _camera_frame_width, _overlay_height));
for (int i = 0; i < _box_lefts.Count; i++)
{
g2.DrawRectangle(new System.Drawing.Pen(b2, 4), new System.Drawing.Rectangle(_box_lefts[i], _box_top, _box_width, _box_height));
g2.DrawString(_box_strings[i], System.Drawing.SystemFonts.DefaultFont, b2, _box_lefts[i], _box_top + 110);
}
if (model.LeftNosepokeState)
{
g2.FillRectangle(b2, _box_lefts[0], _box_top, _box_width, _box_height);
}
if (model.LeftProxState)
{
g2.FillRectangle(b2, _box_lefts[1], _box_top, _box_width, _box_height);
}
if (model.RightProxState)
{
g2.FillRectangle(b2, _box_lefts[2], _box_top, _box_width, _box_height);
}
if (model.RightNosepokeState)
{
g2.FillRectangle(b2, _box_lefts[3], _box_top, _box_width, _box_height);
}
if (model.IsSoundPlaying)
{
g2.FillRectangle(b2, _box_lefts[4], _box_top, _box_width, _box_height);
}
//Now let's take the current video frame and write it out to a saved video for the session
vm.WriteVideoFrame(resized_canvas);
}
//Release some resouces
resized_canvas.Dispose();
}
//Release some resources
video_frame_copy.Dispose();
}
}