public async Task<ImageAnalyzer> TakeAutoCapturePhoto()
{
var image = await CapturePhotoAsync();
this.autoCaptureState = AutoCaptureState.ShowingCapturedPhoto;
this.OnAutoCaptureStateChanged(this.autoCaptureState);
return image;
}
private void OnAutoCaptureStateChanged(AutoCaptureState state)
{
if (this.AutoCaptureStateChanged != null)
{
this.AutoCaptureStateChanged(this, state);
}
}
public async Task <ImageAnalyzer> TakeAutoCapturePhoto()
{
var image = await CaptureFrameAsync(new CurrentFrameModel());
this.autoCaptureState = AutoCaptureState.ShowingCapturedPhoto;
this.OnAutoCaptureStateChanged(this.autoCaptureState);
return(image);
}
private async void CameraControl_AutoCaptureStateChanged(object sender, AutoCaptureState e)
{
switch (e)
{
case AutoCaptureState.WaitingForFaces:
this.cameraGuideBallon.Opacity = 1;
this.cameraGuideText.Text = "Пожалуйста, встаньте перед камерой!";
await speech.Read(this.cameraGuideText.Text);
this.cameraGuideHost.Opacity = 1;
break;
case AutoCaptureState.WaitingForStillFaces:
this.cameraGuideText.Text = "Пожалуйста, не двигайтесь...";
break;
case AutoCaptureState.ShowingCountdownForCapture:
this.cameraGuideText.Text = "";
this.cameraGuideBallon.Opacity = 0;
this.cameraGuideCountdownHost.Opacity = 1;
this.countDownTextBlock.Text = "3";
await Task.Delay(350);
this.countDownTextBlock.Text = "2";
await Task.Delay(350);
this.countDownTextBlock.Text = "1";
await Task.Delay(350);
this.cameraGuideCountdownHost.Opacity = 0;
this.ProcessCameraCapture(await this.cameraControl.TakeAutoCapturePhoto());
break;
case AutoCaptureState.ShowingCapturedPhoto:
this.cameraGuideHost.Opacity = 0;
break;
default:
break;
}
}
private async void CameraControl_AutoCaptureStateChanged(object sender, AutoCaptureState e)
{
switch (e)
{
case AutoCaptureState.WaitingForFaces:
this.cameraGuideBallon.Opacity = 1;
this.cameraGuideText.Text = "Step in front of the camera to start!";
this.cameraGuideHost.Opacity = 1;
break;
case AutoCaptureState.WaitingForStillFaces:
this.cameraGuideText.Text = "Hold still...";
break;
case AutoCaptureState.ShowingCountdownForCapture:
this.cameraGuideText.Text = "";
this.cameraGuideBallon.Opacity = 0;
this.cameraGuideCountdownHost.Opacity = 1;
this.countDownTextBlock.Text = "3";
await Task.Delay(750);
this.countDownTextBlock.Text = "2";
await Task.Delay(750);
this.countDownTextBlock.Text = "1";
await Task.Delay(750);
this.cameraGuideCountdownHost.Opacity = 0;
this.ProcessCameraCapture(await this.cameraControl.TakeAutoCapturePhoto());
break;
case AutoCaptureState.ShowingCapturedPhoto:
this.cameraGuideHost.Opacity = 0;
break;
default:
break;
}
}
private async void CameraControl_AutoCaptureStateChanged(object sender, AutoCaptureState e)
{
switch (e)
{
case AutoCaptureState.WaitingForFaces:
this.cameraGuideBallon.Opacity = 1;
this.cameraGuideText.Text = AppResourcesHelper.GetString("AutomaticPhotoCapturePage_Start.Text");
this.cameraGuideHost.Opacity = 1;
break;
case AutoCaptureState.WaitingForStillFaces:
this.cameraGuideText.Text = AppResourcesHelper.GetString("AutomaticPhotoCapturePage_Hold");
break;
case AutoCaptureState.ShowingCountdownForCapture:
this.cameraGuideText.Text = "";
this.cameraGuideBallon.Opacity = 0;
this.cameraGuideCountdownHost.Opacity = 1;
this.countDownTextBlock.Text = "3";
await Task.Delay(750);
this.countDownTextBlock.Text = "2";
await Task.Delay(750);
this.countDownTextBlock.Text = "1";
await Task.Delay(750);
this.cameraGuideCountdownHost.Opacity = 0;
this.ProcessCameraCapture(await this.cameraControl.TakeAutoCapturePhoto());
break;
case AutoCaptureState.ShowingCapturedPhoto:
this.cameraGuideHost.Opacity = 0;
break;
default:
break;
}
}
public void RestartAutoCaptureCycle()
{
this.autoCaptureState = AutoCaptureState.WaitingForFaces;
this.OnAutoCaptureStateChanged(this.autoCaptureState);
}
private async void UpdateAutoCaptureState(IEnumerable <DetectedFace> detectedFaces)
{
const int IntervalBeforeCheckingForStill = 500;
const int IntervalWithoutFacesBeforeRevertingToWaitingForFaces = 3;
if (!detectedFaces.Any())
{
if (this.autoCaptureState == AutoCaptureState.WaitingForStillFaces &&
(DateTime.Now - this.lastTimeWhenAFaceWasDetected).TotalSeconds > IntervalWithoutFacesBeforeRevertingToWaitingForFaces)
{
this.autoCaptureState = AutoCaptureState.WaitingForFaces;
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
this.OnAutoCaptureStateChanged(this.autoCaptureState);
});
}
return;
}
this.lastTimeWhenAFaceWasDetected = DateTime.Now;
switch (this.autoCaptureState)
{
case AutoCaptureState.WaitingForFaces:
// We were waiting for faces and got some... go to the "waiting for still" state
this.detectedFacesFromPreviousFrame = detectedFaces;
this.timeSinceWaitingForStill = DateTime.Now;
this.autoCaptureState = AutoCaptureState.WaitingForStillFaces;
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
this.OnAutoCaptureStateChanged(this.autoCaptureState);
});
break;
case AutoCaptureState.WaitingForStillFaces:
// See if we have been waiting for still faces long enough
if ((DateTime.Now - this.timeSinceWaitingForStill).TotalMilliseconds >= IntervalBeforeCheckingForStill)
{
// See if the faces are still enough
if (this.AreFacesStill(this.detectedFacesFromPreviousFrame, detectedFaces))
{
this.autoCaptureState = AutoCaptureState.ShowingCountdownForCapture;
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
this.OnAutoCaptureStateChanged(this.autoCaptureState);
});
}
else
{
// Faces moved too much, update the baseline and keep waiting
this.timeSinceWaitingForStill = DateTime.Now;
this.detectedFacesFromPreviousFrame = detectedFaces;
}
}
break;
case AutoCaptureState.ShowingCountdownForCapture:
break;
case AutoCaptureState.ShowingCapturedPhoto:
break;
default:
break;
}
}
public void RestartAutoCaptureCycle()
{
CameraControlButtonClick(this, new RoutedEventArgs());
this.autoCaptureState = AutoCaptureState.WaitingForFaces;
this.OnAutoCaptureStateChanged(this.autoCaptureState);
}
private async void UpdateAutoCaptureState(IEnumerable <DetectedFace> detectedFaces)
{
const int IntervalBeforeCheckingForStill = 500;
const int IntervalWithoutFacesBeforeRevertingToWaitingForFaces = 3;
if (!detectedFaces.Any())
{
if (this.autoCaptureState == AutoCaptureState.WaitingForStillFaces &&
(DateTime.Now - this.lastTimeWhenAFaceWasDetected).TotalSeconds > IntervalWithoutFacesBeforeRevertingToWaitingForFaces)
{
this.autoCaptureState = AutoCaptureState.WaitingForFaces;
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
this.OnAutoCaptureStateChanged(this.autoCaptureState);
});
}
return;
}
this.lastTimeWhenAFaceWasDetected = DateTime.Now;
switch (this.autoCaptureState)
{
case AutoCaptureState.WaitingForFaces:
// We were waiting for faces and got some... go to the "waiting for still" state
this.detectedFacesFromPreviousFrame = detectedFaces;
this.timeSinceWaitingForStill = DateTime.Now;
this.autoCaptureState = AutoCaptureState.WaitingForStillFaces;
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
this.OnAutoCaptureStateChanged(this.autoCaptureState);
});
break;
case AutoCaptureState.WaitingForStillFaces:
// See if we have been waiting for still faces long enough
if ((DateTime.Now - this.timeSinceWaitingForStill).TotalMilliseconds >= IntervalBeforeCheckingForStill)
{
// See if the faces are still enough
if (this.AreFacesStill(this.detectedFacesFromPreviousFrame, detectedFaces))
{
this.autoCaptureState = AutoCaptureState.ShowingCountdownForCapture;
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
this.OnAutoCaptureStateChanged(this.autoCaptureState);
// CAPTURE THE PHOTO DUDE!!!!
//this.TakeAutoCapturePhoto();
this.CameraControlButtonClick(this, new RoutedEventArgs());
//// AFTER 10s RESET
//var delay = Task.Delay(10000).ContinueWith(async _ =>
//{
// await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
// {
// this.CameraControlButtonClick(this, new RoutedEventArgs());
// this.RestartAutoCaptureCycle();
// });
//});
});
}
else
{
// Faces moved too much, update the baseline and keep waiting
this.timeSinceWaitingForStill = DateTime.Now;
this.detectedFacesFromPreviousFrame = detectedFaces;
}
}
break;
case AutoCaptureState.ShowingCountdownForCapture:
break;
case AutoCaptureState.ShowingCapturedPhoto:
break;
default:
break;
}
}
private void OnAutoCaptureStateChanged(AutoCaptureState state)
{
this.AutoCaptureStateChanged?.Invoke(this, state);
}
private async void UpdateAutoCaptureState(IEnumerable <DetectedFace> detectedFaces)
{
const int IntervalBeforeCheckingForStill = 500;
const int IntervalWithoutFacesBeforeRevertingToWaitingForFaces = 3;
if (!detectedFaces.Any())
{
if (this.autoCaptureState == AutoCaptureState.WaitingForStillFaces &&
(DateTime.Now - this.lastTimeWhenAFaceWasDetected).TotalSeconds > IntervalWithoutFacesBeforeRevertingToWaitingForFaces)
{
this.autoCaptureState = AutoCaptureState.WaitingForFaces;
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
this.OnAutoCaptureStateChanged(this.autoCaptureState);
});
}
return;
}
this.lastTimeWhenAFaceWasDetected = DateTime.Now;
switch (this.autoCaptureState)
{
case AutoCaptureState.WaitingForFaces:
this.detectedFacesFromPreviousFrame = detectedFaces;
this.timeSinceWaitingForStill = DateTime.Now;
this.autoCaptureState = AutoCaptureState.WaitingForStillFaces;
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
this.OnAutoCaptureStateChanged(this.autoCaptureState);
});
break;
case AutoCaptureState.WaitingForStillFaces:
if ((DateTime.Now - this.timeSinceWaitingForStill).TotalMilliseconds >= IntervalBeforeCheckingForStill)
{
if (this.AreFacesStill(this.detectedFacesFromPreviousFrame, detectedFaces))
{
this.autoCaptureState = AutoCaptureState.ShowingCountdownForCapture;
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
this.OnAutoCaptureStateChanged(this.autoCaptureState);
});
}
else
{
this.timeSinceWaitingForStill = DateTime.Now;
this.detectedFacesFromPreviousFrame = detectedFaces;
}
}
break;
case AutoCaptureState.ShowingCountdownForCapture:
break;
case AutoCaptureState.ShowingCapturedPhoto:
break;
default:
break;
}
}
