InvertedLuminanceSource.h Example File

 // -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
 #ifndef __INVERTEDLUMINANCESOURCE_H__
 #define __INVERTEDLUMINANCESOURCE_H__
 /*
  *  Copyright 2013 ZXing authors All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include <zxing/ZXing.h>
 #include <zxing/LuminanceSource.h>

 namespace zxing {

 class InvertedLuminanceSource : public LuminanceSource {
 private:
   typedef LuminanceSource Super;
   const Ref<LuminanceSource> delegate;

 public:
   InvertedLuminanceSource(Ref<LuminanceSource> const&);

   ArrayRef<byte> getRow(int y, ArrayRef<byte> row) const;
   ArrayRef<byte> getMatrix() const;

   boolean isCropSupported() const;
   Ref<LuminanceSource> crop(int left, int top, int width, int height) const;

   boolean isRotateSupported() const;

   virtual Ref<LuminanceSource> invert() const;

   Ref<LuminanceSource> rotateCounterClockwise() const;
 };

 }

 #endif /* INVERTEDLUMINANCESOURCE_H_ */