float_element.h

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/* Tide
 *
 * Header file for the float element object.
 *
 * Copyright 2011 Geoffrey Biggs geoffrey.biggs@aist.go.jp
 *     RT-Synthesis Research Group
 *     Intelligent Systems Research Institute,
 *     National Institute of Advanced Industrial Science and Technology (AIST),
 *     Japan
 *     All rights reserved.
 *
 * This file is part of Tide.
 *
 * Tide 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 2.1 of the License, or
 * (at your option) any later version.
 *
 * Tide 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 Tide. If not, see <http://www.gnu.org/licenses/>.
 */

#if !defined(TIDE_FLOAT_ELEMENT_H_)
#define TIDE_FLOAT_ELEMENT_H_

#include <tide/prim_element.h>
#include <tide/win_dll.h>


namespace tide
{
    enum EBMLFloatPrec
    {
        EBML_FLOAT_PREC_SINGLE,
        EBML_FLOAT_PREC_DOUBLE
    };

    class TIDE_EXPORT FloatElement : public PrimitiveElement<double>
    {
        public:
            FloatElement(uint32_t id, double value,
                    EBMLFloatPrec precision=EBML_FLOAT_PREC_DOUBLE);

            FloatElement(uint32_t id, double value, double default_value,
                    EBMLFloatPrec precision=EBML_FLOAT_PREC_DOUBLE);

            virtual FloatElement& operator=(double const& rhs);

            virtual EBMLFloatPrec precision() const { return prec_; }
            virtual void precision(EBMLFloatPrec precision)
            { prec_ = precision; }

            virtual std::streamsize write_body(std::ostream& output);

        protected:
            EBMLFloatPrec prec_;

            virtual std::streamsize body_size() const;

            virtual std::streamsize read_body(std::istream& input,
                    std::streamsize size);
    }; // class FloatElement
}; // namespace tide

// group implementations

#endif // TIDE_FLOAT_ELEMENT_H_