anchor.diff:    }
   }
   
  +/// Internal class to wraps custom scale boundaries (min, max and initial)
  +/// Also, stores values regarding the two sizes: the container and teh child.
   class ScaleBoundaries {
     const ScaleBoundaries(
       this._minScale,
  
positive.code: import "package:photo_view/src/photo_view_computed_scale.dart";
  import 'package:photo_view/src/photo_view_scale_state.dart';
  
  // Given a [PhotoViewScaleState], returns a
  double getScaleForScaleState(
    PhotoViewScaleState scaleState,
    ScaleBoundaries scaleBoundaries,
  
negative.code:   return size.clamp(scaleBoundaries.minScale, scaleBoundaries.maxScale);
  }
  
  /// Simple class to store a min and a max value
  class CornersRange {
    const CornersRange(this.min, this.max);
    final double min;
  