protected override async void OnNavigatedTo(NavigationEventArgs e)
{
_frames = new List <WriteableBitmap>();
filename = e.Parameter as String;
FileNameTextBlock.Text = filename;
ProgressBarHelper.ShowProgressBar("Loading GIF");
await LoadImage(filename);
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
ProgressBarHelper.ShowProgressBar("Processing sequence");
// The image sources are provided as parameter
List <IImageProvider> imageProviders = new List <IImageProvider>();
if (e.Parameter is List <StorageFile> ) // Using list of files as source for sequence
{
var files = e.Parameter as List <StorageFile>;
foreach (StorageFile storageFile in files)
{
imageProviders.Add(new StorageFileImageSource(storageFile));
}
}
else if (e.Parameter is int) // Using bundled resources as source for sequence, list of files is created here
{
int sequenceId = (int)e.Parameter;
int imageIndex = 0;
List <StorageFile> files = new List <StorageFile>();
try
{
while (true)
{
var imageUri = new Uri("ms-appx:///Assets/sequence." + sequenceId + "." + imageIndex + ".jpg");
StorageFile file = await Windows.Storage.StorageFile.GetFileFromApplicationUriAsync(imageUri);
var stream = await file.OpenReadAsync(); // only for checking if file exists
stream.Dispose();
imageProviders.Add(new StorageFileImageSource(file));
imageIndex++;
}
}
catch (Exception)
{
// Expected FileNotFoundException
}
}
await PrepareImageSequence(imageProviders);
Canvas.ManipulationMode = ManipulationModes.TranslateX | ManipulationModes.TranslateY;
Canvas.ManipulationStarted += ImageElement_ManipulationStarted;
Canvas.ManipulationDelta += ImageElement_ManipulationDelta;
SetControlsEnabled(true);
AdjustPreviewImageSizeAccordingToLayout();
RootGrid.SizeChanged += AdjustPreviewImageSizeAccordingToOrientation;
_animationTimer.Start();
ProgressBarHelper.HideProgressBar();
}
private void StartStopCapture()
{
if (!_capturing)
{
_capturing = true;
ProgressBarHelper.ShowProgressBar("Capturing");
CaptureButton.Icon = new SymbolIcon(Symbol.Stop);
}
else
{
StopCapture();
}
}
private async void StartStopCapture()
{
if (!_recording)
{
_recording = true;
ProgressBarHelper.ShowProgressBar("Capturing");
await _lowLagPhotoSequenceCapture.StartAsync();
CaptureButton.Icon = new SymbolIcon(Symbol.Stop);
}
else
{
StopSequenceCapture();
}
}
private async void SaveButton_Click(object sender, RoutedEventArgs e)
{
Stop();
await _renderTask;
SetControlsEnabled(false);
ProgressBarHelper.ShowProgressBar("Saving");
await Save();
ProgressBarHelper.HideProgressBar();
if (Frame.BackStackDepth == 2)
{
Frame.BackStack.RemoveAt(1);
}
_navigationHelper.GoBack();
}