editImage method

@override Future<MediaInfo> editImage(ImageEditRequest request)

Implementation

@override
Future<MediaInfo> editImage(ImageEditRequest request) async {
  imageEdits.add(request);
  final error = nextImageEditError;
  if (error != null) {
    nextImageEditError = null;
    throw error;
  }

  // Mirror the real ordering so a test can assert on output dimensions:
  // crop, then rotate, then scale.
  final source = files[request.sourcePath] ?? defaultInfo(request.sourcePath);
  final crop = request.crop;
  var width = crop == null
      ? source.width
      : (crop.width * source.width).round();
  var height = crop == null
      ? source.height
      : (crop.height * source.height).round();
  if (request.rotation == MonoRotation.quarterTurn ||
      request.rotation == MonoRotation.threeQuarterTurns) {
    (width, height) = (height, width);
  }
  final cap = request.maxDimension;
  if (cap != null && (width > cap || height > cap)) {
    final factor = cap / (width > height ? width : height);
    width = (width * factor).round();
    height = (height * factor).round();
  }

  return MediaInfo(
    path: request.outputPath,
    width: width,
    height: height,
    byteSize: 2048,
  );
}