private async void CancelCameraButton_OnClick(object sender, RoutedEventArgs e)
{
_oReturnObject = new MainPageTransferObject
{
CallbackName = "Appverse.Media.onFinishedPickingImage",
JSONContent = JsonConvert.SerializeObject(_oReturnObject)
};
await HideCameraView();
}
private async void CameraShutter_Click(object sender, RoutedEventArgs e)
{
if (_cameraCapture == null) return;
try
{
using (var memoryStream = new InMemoryRandomAccessStream())
{
var jpegFile = await WindowsPhoneUtils.DocumentsFolder.CreateFileAsync(
Guid.NewGuid().ToString().Replace("-", String.Empty) + ".jpg", CreationCollisionOption.ReplaceExisting);
if (_cameraCapture.VideoDeviceController.FocusControl.Supported)
await _cameraCapture.VideoDeviceController.FocusControl.FocusAsync();
await _cameraCapture.CapturePhotoToStreamAsync(ImageEncodingProperties.CreateJpeg(), memoryStream);
var dec = await BitmapDecoder.CreateAsync(BitmapDecoder.JpegDecoderId, memoryStream);
using (var fileStream = await jpegFile.OpenAsync(FileAccessMode.ReadWrite))
{
var enc = await BitmapEncoder.CreateForTranscodingAsync(fileStream, dec);
if (_cameraOptions != null && _cameraOptions.ImageScaleFactor != 1)
{
enc.BitmapTransform.ScaledWidth = (uint)(dec.PixelWidth * _cameraOptions.ImageScaleFactor);
enc.BitmapTransform.ScaledHeight = (uint)(dec.PixelHeight * _cameraOptions.ImageScaleFactor);
}
//roate the image
enc.BitmapTransform.Rotation = BitmapRotation.Clockwise90Degrees;
//write changes to the image stream
await enc.FlushAsync();
}
var returnMediaMetadata = await AppverseBridge.Instance.PlatformHandler.GetMediaMetadata(jpegFile);
_oReturnObject = new MainPageTransferObject { CallbackName = "Appverse.Media.onFinishedPickingImage", JSONContent = JsonConvert.SerializeObject(returnMediaMetadata) };
}
HideCameraView();
}
catch (Exception ex)
{
WindowsPhoneUtils.Log(ex.Message);
}
}
private void AnalyzeImage(Bitmap bitmap, TimeSpan time)
{
if (!_qrDetectionModeEnabled) return;
var result = _barcodeReader.Decode(bitmap.Buffers[0].Buffer.ToArray(),
(int)bitmap.Buffers[0].Pitch,
(int)bitmap.Dimensions.Height,
RGBLuminanceSource.BitmapFormat.Gray8);
Dispatcher.RunAsync(CoreDispatcherPriority.High, () =>
{
if (result == null)
{
if (_scannerAutoFocus != null) _scannerAutoFocus.BarcodeFound = false;
}
else
{
if (_scannerAutoFocus != null)
{
_cameraCapture.Failed -= CameraCaptureOnFailed;
_cameraCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
_scannerAutoFocus.BarcodeFound = true;
}
var returnQR = new MediaQRContent(result.Text,
WindowsPhoneUtils.ZxingToBarcode(result.BarcodeFormat),
WindowsPhoneUtils.GetQRTypeFromCode(result));
_oReturnObject = new MainPageTransferObject { CallbackName = "Appverse.Scanner.onQRCodeDetected", JSONContent = JsonConvert.SerializeObject(returnQR) };
if (_qrAutoHandleQrCode)
{
var launchUri = Uri.IsWellFormedUriString(returnQR.Text, UriKind.RelativeOrAbsolute)
? new Uri(returnQR.Text)
: null;
var ignore = Launcher.LaunchUriAsync(launchUri).AsTask().Result;
}
_cameraCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
HideCameraView();
}
});
}
private async void CameraGridFadeOutStoryBoard_OnCompleted(object sender, object e)
{
if (Dispatcher.HasThreadAccess)
{
PhotoPreview.Source = null;
CameraGrid.Visibility = Visibility.Collapsed;
CancelCameraButton.IsEnabled = false;
ShutterButton.IsEnabled = false;
//Return to mainPage passing parameter
if (_oReturnObject == null)
{
if (Frame.CanGoBack) Frame.GoBack();
}
else
{
Frame.Navigate(typeof(MainPage), _oReturnObject);
}
_oReturnObject = null;
GC.Collect();
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.High, () =>
{
CameraGridFadeOutStoryBoard_OnCompleted(sender, e);
});
}
}
