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path: root/xmloff/source/style/weighhdl.cxx
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/*************************************************************************
 *
 * 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
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmloff.hxx"
#include <weighhdl.hxx>
#include <xmloff/xmltoken.hxx>
#include <xmloff/xmluconv.hxx>
#include <vcl/vclenum.hxx>
#include <tools/solar.h>

#ifndef _INC_LIMITS
#include <limits.h>
#endif
#include <rtl/ustrbuf.hxx>
#include <rtl/ustring.hxx>

#ifndef _TOOLKIT_HELPER_VCLUNOHELPER_HXX_ 
#include <toolkit/unohlp.hxx>
#endif
#include <com/sun/star/uno/Any.hxx>

using ::rtl::OUString;
using ::rtl::OUStringBuffer;

using namespace ::com::sun::star::uno;
using namespace ::xmloff::token;

struct FontWeightMapper
{
    FontWeight eWeight;
    USHORT nValue;
};

FontWeightMapper const aFontWeightMap[] =	
{
    { WEIGHT_DONTKNOW,				0 },
    { WEIGHT_THIN,					100 },
    { WEIGHT_ULTRALIGHT,			150 },
    { WEIGHT_LIGHT,					250 },
    { WEIGHT_SEMILIGHT,				350 },
    { WEIGHT_NORMAL,				400 },
    { WEIGHT_MEDIUM,				450 },
    { WEIGHT_SEMIBOLD,				600 },
    { WEIGHT_BOLD,					700 },
    { WEIGHT_ULTRABOLD,				800 },
    { WEIGHT_BLACK,					900 },
    { (FontWeight)USHRT_MAX,	   1000 }
};

///////////////////////////////////////////////////////////////////////////////
//
// class XMLFmtBreakBeforePropHdl
//

XMLFontWeightPropHdl::~XMLFontWeightPropHdl()
{
    // Nothing to do
}

sal_Bool XMLFontWeightPropHdl::importXML( const OUString& rStrImpValue, Any& rValue, const SvXMLUnitConverter& ) const
{ 
    sal_Bool bRet = sal_False;
    sal_uInt16 nWeight = 0;

    if( IsXMLToken( rStrImpValue, XML_WEIGHT_NORMAL ) )
    {
        nWeight = 400;
        bRet = sal_True;
    }
    else if( IsXMLToken( rStrImpValue, XML_WEIGHT_BOLD ) )
    {
        nWeight = 700;
        bRet = sal_True;
    }
    else
    {
        sal_Int32 nTemp;
        bRet = SvXMLUnitConverter::convertNumber( nTemp, rStrImpValue, 100, 900 );
        if( bRet )
            nWeight = sal::static_int_cast< sal_uInt16 >(nTemp);
    }

    if( bRet )
    {
        bRet = sal_False;

        for( int i = 0; aFontWeightMap[i].eWeight != USHRT_MAX; i++ )
        {
            if( (nWeight >= aFontWeightMap[i].nValue) && (nWeight <= aFontWeightMap[i+1].nValue) )
            {
                sal_uInt16 nDiff1 = nWeight - aFontWeightMap[i].nValue;
                sal_uInt16 nDiff2 = aFontWeightMap[i+1].nValue - nWeight;

                if( nDiff1 < nDiff2 )
                    rValue <<= (float)( VCLUnoHelper::ConvertFontWeight( aFontWeightMap[i].eWeight ) );
                else
                    rValue <<= (float)( VCLUnoHelper::ConvertFontWeight( aFontWeightMap[i+1].eWeight ) );

                bRet = sal_True;
                break;
            }
        }
    }

    return bRet; 
}

sal_Bool XMLFontWeightPropHdl::exportXML( OUString& rStrExpValue, const Any& rValue, const SvXMLUnitConverter& ) const
{ 
    sal_Bool bRet = sal_False;
    FontWeight eWeight;

    float fValue = float();
    if( !( rValue >>= fValue ) )
    {
        sal_Int32 nValue = 0;
        if( rValue >>= nValue )
        {
            fValue = (float)nValue;
            bRet = sal_True;
        }
    }
    else
        bRet = sal_True;

    eWeight = VCLUnoHelper::ConvertFontWeight( fValue );

    if( bRet )
    {
        sal_uInt16 nWeight = 0;

        for( int i = 0; aFontWeightMap[i].eWeight != -1; i++ )
        {
            if( aFontWeightMap[i].eWeight == eWeight )
            {
                 nWeight = aFontWeightMap[i].nValue;
                 break;
            }
        }

        OUStringBuffer aOut;

        if( 400 == nWeight )
            aOut.append( GetXMLToken(XML_WEIGHT_NORMAL) );
        else if( 700 == nWeight )
            aOut.append( GetXMLToken(XML_WEIGHT_BOLD) );
        else
            SvXMLUnitConverter::convertNumber( aOut, (sal_Int32)nWeight );

        rStrExpValue = aOut.makeStringAndClear();
    }

    return bRet;
}