MapModel.h

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/*  Copyright (C) 2001-2014 National Institute For Space Research (INPE) - Brazil.

    This file is part of the TerraLib - a Framework for building GIS enabled applications.

    TerraLib 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 of the License,
    or (at your option) any later version.

    TerraLib 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 TerraLib. See COPYING. If not, write to
    TerraLib Team at <terralib-team@terralib.org>.
 */

/*!
  \file MapModel.h
   
  \brief 

  \ingroup layout
*/

#ifndef __TERRALIB_LAYOUT_INTERNAL_MAP_MODEL_H
#define __TERRALIB_LAYOUT_INTERNAL_MAP_MODEL_H

// TerraLib
#include "ItemModelObservable.h"
#include "ContextItem.h"
#include "Visitable.h"
#include "../../../maptools/AbstractLayer.h"
#include "../../../common/UnitOfMeasure.h"

namespace te
{
  namespace layout
  {
    class MapModel : public ItemModelObservable, public Visitable
    {
      public:

        MapModel();
        virtual ~MapModel();

        virtual void draw( ContextItem context );

        virtual void updateProperties(te::layout::Properties* properties);

        virtual bool refreshLayer(te::map::AbstractLayerPtr layer);

        virtual te::map::AbstractLayerPtr getLayer();

        virtual double getScale();

        virtual te::gm::Envelope getWorldInMeters();

        virtual te::gm::Envelope getWorldInDegrees();

        virtual te::common::UnitOfMeasurePtr unitMeasureLayer();
        
      protected:

        std::string proj4DescToPlanar(int zone);
        
        std::string proj4DescToGeodesic();

        te::map::AbstractLayerPtr m_layer;
    };
  }
}

#endif //__TERRALIB_LAYOUT_INTERNAL_MAPLAYOUT_MODEL_H