office-gobmx/sysui/source/win32/misc/AutoBuffer.cxx
2011-03-29 21:40:28 +01:00

166 lines
4.7 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
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*
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* only, as published by the Free Software Foundation.
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
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*
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************************************************************************/
//------------------------------------------------------------------------
// includes
//------------------------------------------------------------------------
#include "AutoBuffer.hxx"
#include <osl/diagnose.h>
#include <windows.h>
//------------------------------------------------------------------------
// namespace directives
//------------------------------------------------------------------------
using rtl::OUString;
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
CAutoUnicodeBuffer::CAutoUnicodeBuffer( size_t size, sal_Bool bLazyCreation ) :
m_buffSize( size ),
m_pBuff( NULL )
{
if ( !bLazyCreation )
init( );
}
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
CAutoUnicodeBuffer::~CAutoUnicodeBuffer( )
{
delete [] m_pBuff;
}
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
sal_Bool SAL_CALL CAutoUnicodeBuffer::resize( size_t new_size )
{
OSL_ASSERT( new_size >= 0 );
if ( new_size != m_buffSize )
{
if ( new_size > m_buffSize )
{
delete [] m_pBuff;
m_pBuff = NULL;
}
m_buffSize = new_size;
}
return sal_True;
}
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
void SAL_CALL CAutoUnicodeBuffer::empty( )
{
if ( m_pBuff )
ZeroMemory( m_pBuff, m_buffSize * sizeof( sal_Unicode ) );
}
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
sal_Bool SAL_CALL CAutoUnicodeBuffer::fill( const sal_Unicode* pContent, size_t nLen )
{
OSL_ASSERT( pContent && m_buffSize && (m_buffSize >= nLen) );
init( );
sal_Bool bRet = sal_False;
if ( m_pBuff && pContent && nLen )
{
CopyMemory( m_pBuff, pContent, nLen * sizeof( sal_Unicode ) );
bRet = sal_True;
}
return bRet;
}
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
size_t SAL_CALL CAutoUnicodeBuffer::size( ) const
{
return m_buffSize;
}
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
CAutoUnicodeBuffer::operator sal_Unicode*( )
{
return m_pBuff;
}
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
sal_Unicode* CAutoUnicodeBuffer::operator&( )
{
return m_pBuff;
}
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
const sal_Unicode* CAutoUnicodeBuffer::operator&( ) const
{
return m_pBuff;
}
//------------------------------------------------------------------------
//
//------------------------------------------------------------------------
void SAL_CALL CAutoUnicodeBuffer::init( )
{
if ( !m_pBuff && (m_buffSize > 0) )
m_pBuff = new sal_Unicode[ m_buffSize ];
empty( );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */