private void ApplyFilter(FilterParams p)
{
IsBusy = true;
IsPreview = true;
_cancellationTokenSource?.Cancel();
_cancellationTokenSource = new CancellationTokenSource();
var ct = _cancellationTokenSource.Token;
Task.Run(async() =>
{
if (_smallImage != null)
{
DisplayedImage = await _imageFilter.Filter(_smallImage, p, ct);
// small delay so it doesnt give "epilepsy" when displaying
// constantly altering smallImage and Image
await Task.Delay(100, ct);
}
ct.ThrowIfCancellationRequested(); //no need to catch this or other ct exceptions in this case
var image = await _imageFilter.Filter(_originalImage, p, ct);
DisplayedImage = image;
IsBusy = false;
IsPreview = false;
}, ct);
}
