decodeImageInfos function

Future<ImageInfos> decodeImageInfos({ required Uint8List bytes, required Size screenSize, TransformConfigs? configs, })

Decode the image being edited.

Implementation

Future<ImageInfos> decodeImageInfos({
  required Uint8List bytes,
  required Size screenSize,
  TransformConfigs? configs,
}) async {
  var decodedImage = await decodeImageFromList(bytes);

  bool rotated = configs?.is90DegRotated == true;
  int w = decodedImage.width;
  int h = decodedImage.height;

  if (configs != null && configs.isNotEmpty) {
    w = w ~/ configs.scaleUser;
    h = h ~/ configs.scaleUser;
  }

  double widthRatio = (rotated ? h : w).toDouble() / screenSize.width;
  double heightRatio = (rotated ? w : h).toDouble() / screenSize.height;
  double pixelRatio = max(heightRatio, widthRatio);

  Size renderedSize =
      Size(w.toDouble() / pixelRatio, h.toDouble() / pixelRatio);

  return ImageInfos(
    rawSize: Size(w.toDouble(), h.toDouble()),
    renderedSize: renderedSize,
    cropRectSize: configs != null && configs.isNotEmpty
        ? configs.cropRect.size
        : renderedSize,
    pixelRatio: pixelRatio,
    isRotated: configs?.is90DegRotated ?? false,
  );
}