data_algorithm.hh

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//------------------------------------------------------------------------------
// This file is part of the OpenStructure project <www.openstructure.org>
//
// Copyright (C) 2008-2011 by the OpenStructure authors
// Copyright (C) 2003-2010 by the IPLT authors
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License as published by the Free
// Software Foundation; either version 3.0 of the License, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
// details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this library; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//------------------------------------------------------------------------------

/*
  Data algorithm abstract base classes

  Author: Ansgar Philippsen
*/

#ifndef IMG_DATA_ALG_H
#define IMG_DATA_ALG_H

#include <ost/img/module_config.hh>
#include "image_fw.hh"

/*
  TODO: 

  add info object as parameter in base class, this guarantees that every
  algorithm has access to an info object for logging
*/

namespace ost { namespace img {


class DLLEXPORT_OST_IMG_BASE AlgorithmBase {
 public:
  const String& GetName() const;

  virtual ~AlgorithmBase();

 protected:
  AlgorithmBase(const String& n);

  AlgorithmBase(const AlgorithmBase& a);
  AlgorithmBase& operator=(const AlgorithmBase& b);

 private:
  String name_;
};

class DLLEXPORT_OST_IMG_BASE NonModAlgorithm: public AlgorithmBase
{
public:
  virtual void Visit(const ConstImageHandle& i) = 0;

protected:
  NonModAlgorithm(const String& name);
  NonModAlgorithm(const NonModAlgorithm& a);
  NonModAlgorithm& operator=(const NonModAlgorithm& a);
};



class DLLEXPORT_OST_IMG_BASE ModIPAlgorithm: public AlgorithmBase
{
public:
  virtual void Visit(ImageHandle& ih) = 0;
protected:
  ModIPAlgorithm(const String& name);
  ModIPAlgorithm(const ModIPAlgorithm& a);
  ModIPAlgorithm& operator=(const ModIPAlgorithm& a);
};



class DLLEXPORT_OST_IMG_BASE ConstModIPAlgorithm: public AlgorithmBase
{
public:
  virtual void Visit(ImageHandle& ih) const = 0;
protected:
  ConstModIPAlgorithm(const String& name);
  ConstModIPAlgorithm(const ConstModIPAlgorithm& a);
  ConstModIPAlgorithm& operator=(const ConstModIPAlgorithm& a);
};



class DLLEXPORT_OST_IMG_BASE ModOPAlgorithm: public AlgorithmBase
{
public:
  virtual ImageHandle Visit(const ConstImageHandle& ih) = 0;

protected:
  ModOPAlgorithm(const String& name);
  ModOPAlgorithm(const ModOPAlgorithm& a);
  ModOPAlgorithm& operator=(const ModOPAlgorithm& a);
};


class DLLEXPORT_OST_IMG_BASE ConstModOPAlgorithm: public AlgorithmBase
{
public:
  virtual ImageHandle Visit(const ConstImageHandle& ih) const=  0;

protected:
  ConstModOPAlgorithm(const String& name);
  ConstModOPAlgorithm(const ConstModOPAlgorithm& a);
  ConstModOPAlgorithm& operator=(const ConstModOPAlgorithm& a);
};

}} // namespace

#endif