ImageWriter.hpp

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/* 
 * ImageWriter.hpp 
 *
 * This file is part of the Chemical Data Processing Toolkit
 *
 * Copyright (C) 2003 Thomas Seidel <thomas.seidel@univie.ac.at>
 *
 * 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 2 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; see the file COPYING. If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
 
 
#ifndef CDPL_VIS_IMAGEWRITER_HPP
#define CDPL_VIS_IMAGEWRITER_HPP
 
#include <memory>
 
#include "CDPL/Vis/APIPrefix.hpp"
 
 
typedef struct _cairo_surface cairo_surface_t;
 
 
namespace CDPL
{
 
    namespace Base
    {
 
        class DataIOBase;
    }
 
    namespace Chem
    {
 
        class Reaction;
        class MolecularGraph;
    } // namespace Chem
 
    namespace Vis
    {
 
        class View2D;
        class ReactionView2D;
        class StructureView2D;
        class Rectangle2D;
 
        class CDPL_VIS_API ImageWriter
        {
 
          protected:
            ImageWriter(const Base::DataIOBase& io_base);
 
            virtual ~ImageWriter();
 
            cairo_surface_t* renderMolGraphImage(const Chem::MolecularGraph&);
            cairo_surface_t* renderReactionImage(const Chem::Reaction&);
 
            virtual cairo_surface_t* createCairoSurface(double, double) const = 0;
            virtual cairo_surface_t* createCairoSurface() const               = 0;
 
          private:
            ImageWriter(const ImageWriter&);
 
            cairo_surface_t* renderImage(View2D&) const;
 
            void getImageBounds(View2D&, Rectangle2D&) const;
 
            ImageWriter& operator=(const ImageWriter&);
 
            typedef std::unique_ptr<StructureView2D> StructureViewPtr;
            typedef std::unique_ptr<ReactionView2D>  ReactionViewPtr;
 
            const Base::DataIOBase& ioBase;
            StructureViewPtr        structureView;
            ReactionViewPtr         reactionView;
        };
    } // namespace Vis
} // namespace CDPL
 
#endif // CDPL_VIS_IMAGEWRITER_HPP