ImgIterator.h

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/********************************************************************
**                Image Component Library (ICL)                    **
**                                                                 **
** Copyright (C) 2006-2013 CITEC, University of Bielefeld          **
**                         Neuroinformatics Group                  **
** Website: www.iclcv.org and                                      **
**          http://opensource.cit-ec.de/projects/icl               **
**                                                                 **
** File   : ICLCore/src/ICLCore/ImgIterator.h                      **
** Module : ICLCore                                                **
** Authors: Christof Elbrechter, Michael Goetting, Robert Haschke  **
**                                                                 **
**                                                                 **
** GNU LESSER GENERAL PUBLIC LICENSE                               **
** This file may be used under the terms of the GNU Lesser General **
** Public License version 3.0 as published by the                  **
**                                                                 **
** Free Software Foundation and appearing in the file LICENSE.LGPL **
** included in the packaging of this file.  Please review the      **
** following information to ensure the license requirements will   **
** be met: http://www.gnu.org/licenses/lgpl-3.0.txt                **
**                                                                 **
** The development of this software was supported by the           **
** Excellence Cluster EXC 277 Cognitive Interaction Technology.    **
** The Excellence Cluster EXC 277 is a grant of the Deutsche       **
** Forschungsgemeinschaft (DFG) in the context of the German       **
** Excellence Initiative.                                          **
**                                                                 **
********************************************************************/

#pragma once

#include <ICLUtils/CompatMacros.h>
#include <ICLCore/CoreFunctions.h>
#include <ICLMath/MatrixSubRectIterator.h>

namespace icl{
  namespace core{

    template <typename Type>
    class ImgIterator : public math::MatrixSubRectIterator<Type>{
      public:
      
      static inline const ImgIterator<Type> create_end_roi_iterator(const Type *data,
                                                                    int width,
                                                                    const utils::Rect &roi){
        ImgIterator<Type> i(const_cast<Type*>(data),width,roi);
        i.m_dataCurr = i.m_dataEnd - roi.width + width;
        i.m_currLineEnd = i.m_dataCurr + roi.width;
        return i;
      }


      inline ImgIterator(){}

      inline ImgIterator(Type *data,int imageWidth,const utils::Rect &roi):
      math::MatrixSubRectIterator<Type>(data,imageWidth,roi.x,roi.y,roi.width,roi.height){}


      inline ImgIterator(const ImgIterator<Type> &origin, const utils::Size &s, const utils::Point &a){
        ImgIterator<Type>::m_matrixWidth=origin.m_matrixWidth;
        ImgIterator<Type>::m_subRectWidth=s.width;
        ImgIterator<Type>::m_subRectHeight=s.height;
        ImgIterator<Type>::m_dataOrigin=origin.m_dataOrigin;
        ImgIterator<Type>::m_dataCurr=origin.m_dataCurr - a.x - a.y * origin.m_matrixWidth;
        ImgIterator<Type>::init();
      }


      inline bool inRegionSubROI() const{
        return ImgIterator<Type>::inSubRect();
      }

      inline ImgIterator<Type> &operator=(const math::MatrixSubRectIterator<Type> &other){
        math::MatrixSubRectIterator<Type>::operator=(other);
        return *this;
      }
    
      inline const ImgIterator<Type> &operator=(const math::MatrixSubRectIterator<Type> &other) const{
        math::MatrixSubRectIterator<Type>::operator=(other);
        return *this;
      }

      int getROIWidth() const {
        return math::MatrixSubRectIterator<Type>::getSubRectWidth();
      }

      int getROIHeight() const {
        return math::MatrixSubRectIterator<Type>::getSubRectHeight();
      }
    };
  } // namespace core
} // namespace icl