/*
 * Copyright (C) 2005-2019 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * 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.
 */

#ifndef otbWrapperElevationParametersHandler_h
#define otbWrapperElevationParametersHandler_h

#include "otbWrapperApplication.h"

namespace otb
{
namespace Wrapper
{

/** \class ElevationParametersHandler
 *  \brief This class represent a helper class for elevation modes. It
 *  add the parameters automatically to the application where it is
 *  used, provide method to get the value needed.
 *
 * This class allow creating a Choice list with several Elevation
 * modes to be used, supported modes are DEM, Geoid file, average
 * elevation. The user can get the value relative to each mode
 * using one the following methods Get{AverageElevation, DEMDirectory, GeoidFile}.
 *
 *
 *
 * \ingroup OTBApplicationEngine
 */

class ElevationParametersHandler
{
public:
  /**
    * Add a Group containing several choices for map projections
    *
    */
  static OTBApplicationEngine_EXPORT void AddElevationParameters(Application::Pointer app, const std::string& key);

  /** Method for getting the value of the elevation mode selected */
  static OTBApplicationEngine_EXPORT float GetDefaultElevation(const Application::Pointer app, const std::string& key);
  static OTBApplicationEngine_EXPORT const std::string GetGeoidFile(const Application::Pointer app, const std::string& key);
  static OTBApplicationEngine_EXPORT const std::string GetDEMDirectory(const Application::Pointer app, const std::string& key);
  static OTBApplicationEngine_EXPORT bool IsGeoidUsed(const Application::Pointer app, const std::string& key);
  static OTBApplicationEngine_EXPORT bool IsDEMUsed(const Application::Pointer app, const std::string& key);

  static OTBApplicationEngine_EXPORT void SetupDEMHandlerFromElevationParameters(const Application::Pointer app, const std::string& key);

protected:
  ElevationParametersHandler();          // not implemented
  virtual ~ElevationParametersHandler(); // not implemented
};
}
}


#endif // otbWrapperElevationParametersHandler_h_