private void UpdateBoundingBoxState(BoundingBoxState newState, DetectionMessage newBoundingBox = null)
{
switch (newState)
{
case BoundingBoxState.Initial:
throw new InvalidOperationException(
$"{nameof(BoundingBoxState.Initial)} state can be set just at the beginning.");
case BoundingBoxState.Missing:
canvasView.InvalidateSurface();
boundingBox = DetectionMessage.FullScreen;
break;
case BoundingBoxState.Framing:
DisposeFadeOutTimer();
elapsedTimeSinceLastDetection = DateTime.UtcNow - lastDetectionDate;
lastDetectionDate = DateTime.UtcNow;
previousBoundingBox = boundingBox;
boundingBox = newBoundingBox;
if (!this.AnimationIsRunning(nameof(framingAnimation)))
{
framingAnimation.Commit(
this,
nameof(framingAnimation),
length: AnimationLengthMilliseconds,
finished: (_, __) => InitializeFadeOutTimer());
}
break;
case BoundingBoxState.Disappearing:
break;
default:
throw new InvalidOperationException();
}
currentBoundingBoxState = newState;
}