src/add-ons/media/plugins/matroska/libebml/ebml/EbmlString.h

   1 /****************************************************************************
   2 ** libebml : parse EBML files, see http://embl.sourceforge.net/
   3 **
   4 ** <file/class description>
   5 **
   6 ** Copyright (C) 2002-2005 Steve Lhomme.  All rights reserved.
   7 **
   8 ** This file is part of libebml.
   9 **
  10 ** This library is free software; you can redistribute it and/or
  11 ** modify it under the terms of the GNU Lesser General Public
  12 ** License as published by the Free Software Foundation; either
  13 ** version 2.1 of the License, or (at your option) any later version.
  14 **
  15 ** This library is distributed in the hope that it will be useful,
  16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 ** Lesser General Public License for more details.
  19 **
  20 ** You should have received a copy of the GNU Lesser General Public
  21 ** License along with this library; if not, write to the Free Software
  22 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23 **
  24 ** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
  25 **
  26 ** Contact license@matroska.org if any conditions of this licensing are
  27 ** not clear to you.
  28 **
  29 **********************************************************************/
  30
  31 /*!
  32         \file
  33         \version \$Id: EbmlString.h 1079 2005-03-03 13:18:14Z robux4 $
  34         \author Steve Lhomme     <robux4 @ users.sf.net>
  35 */
  36 #ifndef LIBEBML_STRING_H
  37 #define LIBEBML_STRING_H
  38
  39 #include <string>
  40
  41 #include "EbmlTypes.h"
  42 #include "EbmlElement.h"
  43
  44 START_LIBEBML_NAMESPACE
  45
  46 /*!
  47     \class EbmlString
  48     \brief Handle all operations on a printable string EBML element
  49 */
  50 class EBML_DLL_API EbmlString : public EbmlElement {
  51         public:
  52                 EbmlString();
  53                 EbmlString(const std::string & aDefaultValue);
  54                 EbmlString(const EbmlString & ElementToClone);
  55
  56                 virtual ~EbmlString() {}
  57
  58                 bool ValidateSize() const {return true;} // any size is possible
  59                 uint32 RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
  60                 uint64 ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
  61                 uint64 UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
  62
  63                 EbmlString & operator=(const std::string);
  64                 operator const std::string &() const {return Value;}
  65
  66                 void SetDefaultValue(std::string & aValue) {assert(!DefaultIsSet); DefaultValue = aValue; DefaultIsSet = true;}
  67
  68                 const std::string DefaultVal() const {assert(DefaultIsSet); return DefaultValue;}
  69
  70                 bool IsDefaultValue() const {
  71                         return (DefaultISset() && Value == DefaultValue);
  72                 }
  73
  74         protected:
  75                 std::string Value;  /// The actual value of the element
  76                 std::string DefaultValue;
  77 };
  78
  79 END_LIBEBML_NAMESPACE
  80
  81 #endif // LIBEBML_STRING_H