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/****************************************************************************
** libebml : parse EBML files, see http://embl.sourceforge.net/
**
** <file/class description>
**
** Copyright (C) 2002-2010 Steve Lhomme. All rights reserved.
**
** 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 2.1 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
**
** See http://www.gnu.org/licenses/lgpl-2.1.html for LGPL licensing information.
**
** Contact license@matroska.org if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
/*!
\file
\version \$Id$
\author Steve Lhomme <robux4 @ users.sf.net>
*/
#ifndef LIBEBML_DATE_H
#define LIBEBML_DATE_H
#include "EbmlTypes.h"
#include "EbmlElement.h"
namespace libebml {
/*!
\class EbmlDate
\brief Handle all operations related to an EBML date
*/
class EBML_DLL_API EbmlDate : public EbmlElement {
public:
EbmlDate() :EbmlElement(8, false), myDate(0) {}
EbmlDate(const EbmlDate & ElementToClone);
/*!
\brief set the date with a UNIX/C/EPOCH form
\param NewDate UNIX/C date in UTC (no timezone)
*/
void SetEpochDate(int64 NewDate) {myDate = (NewDate - UnixEpochDelay) * 1000000000; SetValueIsSet();}
EbmlDate &SetValue(int64 NewValue) {SetEpochDate(NewValue); return *this;}
/*!
\brief get the date with a UNIX/C/EPOCH form
\note the date is in UTC (no timezone)
*/
int64 GetEpochDate() const {return static_cast<int64>(myDate/1000000000 + UnixEpochDelay);}
int64 GetValue() const {return GetEpochDate();}
bool ValidateSize() const override {return IsFiniteSize() && ((GetSize() == 8) || (GetSize() == 0));}
/*!
\note no Default date handled
*/
filepos_t UpdateSize(bool /* bWithDefault = false */, bool /* bForceRender = false */) override {
if(!ValueIsSet())
SetSize_(0);
else
SetSize_(8);
return GetSize();
}
bool IsSmallerThan(const EbmlElement *Cmp) const override;
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA) override;
bool IsDefaultValue() const override {
return false;
}
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false) override;
int64 myDate; ///< internal format of the date
static const uint64 UnixEpochDelay;
};
} // namespace libebml
#endif // LIBEBML_DATE_H
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