3171db6ec6
git-svn-id: https://matroska.svn.sourceforge.net/svnroot/matroska/trunk/libebml@44 a6f86f6d-0131-4f8e-9e7b-e335508773d5
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
/****************************************************************************
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** libebml : parse EBML files, see http://embl.sourceforge.net/
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**
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** <file/class description>
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**
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** Copyright (C) 2002-2010 Steve Lhomme. All rights reserved.
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**
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** This file is part of libebml.
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**
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** This library is free software; you can redistribute it and/or
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** modify it under the terms of the GNU Lesser General Public
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** License as published by the Free Software Foundation; either
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** version 2.1 of the License, or (at your option) any later version.
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**
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** This library is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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** Lesser General Public License for more details.
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**
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** You should have received a copy of the GNU Lesser General Public
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** License along with this library; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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**
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** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
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**
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** Contact license@matroska.org if any conditions of this licensing are
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** not clear to you.
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**
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**********************************************************************/
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/*!
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\file
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\version \$Id: EbmlFloat.h 1079 2005-03-03 13:18:14Z robux4 $
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\author Steve Lhomme <robux4 @ users.sf.net>
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*/
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#ifndef LIBEBML_FLOAT_H
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#define LIBEBML_FLOAT_H
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#include "EbmlTypes.h"
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#include "EbmlElement.h"
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START_LIBEBML_NAMESPACE
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/*!
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\class EbmlFloat
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\brief Handle all operations on a float EBML element
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*/
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class EBML_DLL_API EbmlFloat : public EbmlElement {
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public:
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enum Precision {
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FLOAT_32
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,FLOAT_64
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};
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EbmlFloat(const Precision prec = FLOAT_32);
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EbmlFloat(const double DefaultValue, const Precision prec = FLOAT_32);
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EbmlFloat(const EbmlFloat & ElementToClone);
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bool ValidateSize() const
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{
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return (GetSize() == 4 || GetSize() == 8);
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}
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filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
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filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
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filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
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void SetPrecision(const EbmlFloat::Precision prec = FLOAT_32)
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{
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if (prec == FLOAT_64)
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SetSize_(8);
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else
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SetSize_(4); // default size
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}
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// EbmlFloat & operator=(const float NewValue) { Value = NewValue; return *this;}
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EbmlFloat & operator=(const double NewValue) { Value = NewValue; SetValueIsSet(); return *this;}
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bool operator<(const EbmlFloat & EltCmp) const {return Value < EltCmp.Value;}
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operator const float() const {return float(Value);}
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operator const double() const {return double(Value);}
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void SetDefaultValue(double);
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const double DefaultVal() const;
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bool IsDefaultValue() const {
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return (DefaultISset() && Value == DefaultValue);
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}
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#if defined(EBML_STRICT_API)
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private:
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#else
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protected:
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#endif
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double Value; /// The actual value of the element
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double DefaultValue;
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};
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END_LIBEBML_NAMESPACE
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#endif // LIBEBML_FLOAT_H
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