3171db6ec6
git-svn-id: https://matroska.svn.sourceforge.net/svnroot/matroska/trunk/libebml@44 a6f86f6d-0131-4f8e-9e7b-e335508773d5
97 lines
3.2 KiB
C++
97 lines
3.2 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: EbmlUInteger.h 1079 2005-03-03 13:18:14Z robux4 $
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\author Steve Lhomme <robux4 @ users.sf.net>
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\author Julien Coloos <suiryc @ users.sf.net>
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\author Moritz Bunkus <moritz @ bunkus.org>
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*/
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#ifndef LIBEBML_UINTEGER_H
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#define LIBEBML_UINTEGER_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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const int DEFAULT_UINT_SIZE = 0; ///< optimal size stored
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/*!
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\class EbmlUInteger
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\brief Handle all operations on an unsigned integer EBML element
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*/
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class EBML_DLL_API EbmlUInteger : public EbmlElement {
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public:
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EbmlUInteger();
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EbmlUInteger(uint64 DefaultValue);
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EbmlUInteger(const EbmlUInteger & ElementToClone);
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EbmlUInteger & operator=(uint64 NewValue) {Value = NewValue; SetValueIsSet(); return *this;}
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/*!
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Set the default size of the integer (usually 1,2,4 or 8)
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*/
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void SetDefaultSize(int nDefaultSize = DEFAULT_UINT_SIZE) {SetSize_(nDefaultSize);}
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bool ValidateSize() const {return (GetSize() <= 8);}
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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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bool operator<(const EbmlUInteger & EltCmp) const {return Value < EltCmp.Value;}
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operator uint8() const {return uint8(Value); }
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operator uint16() const {return uint16(Value);}
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operator uint32() const {return uint32(Value);}
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operator uint64() const {return Value;}
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void SetDefaultValue(uint64);
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const uint64 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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uint64 Value; /// The actual value of the element
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uint64 DefaultValue;
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};
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END_LIBEBML_NAMESPACE
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#endif // LIBEBML_UINTEGER_H
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