** libebml : parse EBML files, see http://embl.sourceforge.net/
**
** <file/class description>
**
** Copyright (C) 2002-2005 Steve Lhomme. All rights reserved.
**
** This file is part of libebml.
**
** 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
**
** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
**
** Contact license@matroska.org if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
\file
\version \$Id: EbmlString.cpp 1079 2005-03-03 13:18:14Z robux4 $
\author Steve Lhomme <robux4 @ users.sf.net>
*/
#include <cassert>
#include "ebml/EbmlString.h"
START_LIBEBML_NAMESPACE
EbmlString::EbmlString()
:EbmlElement(0, false)
{
DefaultSize = 0;
Size = Value.length();
if (DefaultSize > Size)
Size = DefaultSize;*/
}
EbmlString::EbmlString(const std::string & aDefaultValue)
:EbmlElement(0, true), Value(aDefaultValue), DefaultValue(aDefaultValue)
{
DefaultSize = 0;
DefaultIsSet = true;
Size = Value.length();
if (DefaultSize > Size)
Size = DefaultSize;*/
}
\todo Cloning should be on the same exact type !
*/
EbmlString::EbmlString(const EbmlString & ElementToClone)
:EbmlElement(ElementToClone)
,Value(ElementToClone.Value)
,DefaultValue(ElementToClone.DefaultValue)
{
}
\todo handle exception on errors
*/
uint32 EbmlString::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
{
uint32 Result;
output.writeFully(Value.c_str(), Value.length());
Result = Value.length();
if (Result < DefaultSize) {
binary *Pad = new binary[DefaultSize - Result];
if (Pad == NULL)
{
return Result;
}
memset(Pad, 0x00, DefaultSize - Result);
output.writeFully(Pad, DefaultSize - Result);
Result = DefaultSize;
delete [] Pad;
}
return Result;
}
EbmlString & EbmlString::operator=(const std::string NewString)
{
Value = NewString;
bValueIsSet = true;
Size = Value.length();
if (DefaultSize > Size)
Size = DefaultSize;*/
return *this;
}
uint64 EbmlString::UpdateSize(bool bKeepIntact, bool bForceRender)
{
if (!bKeepIntact && IsDefaultValue())
return 0;
if (Value.length() < DefaultSize) {
Size = DefaultSize;
} else {
Size = Value.length();
}
return Size;
}
uint64 EbmlString::ReadData(IOCallback & input, ScopeMode ReadFully)
{
if (ReadFully != SCOPE_NO_DATA)
{
if (Size == 0) {
Value = "";
bValueIsSet = true;
} else {
char *Buffer = new char[Size + 1];
if (Buffer == NULL) {
input.setFilePointer(Size, seek_current);
} else {
input.readFully(Buffer, Size);
if (Buffer[Size-1] != '\0') {
Buffer[Size] = '\0';
}
Value = Buffer;
delete [] Buffer;
bValueIsSet = true;
}
}
}
return Size;
}
END_LIBEBML_NAMESPACE
