/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <XMLClipPropertyHandler.hxx>
#include <com/sun/star/uno/Any.hxx>
#include <rtl/ustrbuf.hxx>
#include <sal/log.hxx>
#include <com/sun/star/text/GraphicCrop.hpp>
#include <xmloff/xmluconv.hxx>
#include <xmloff/xmltoken.hxx>

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




XMLClipPropertyHandler::XMLClipPropertyHandler( bool bODF11 ) :
    m_bODF11( bODF11 )
{
}

XMLClipPropertyHandler::~XMLClipPropertyHandler()
{
    // nothing to do
}

bool XMLClipPropertyHandler::equals(
        const Any& r1,
        const Any& r2 ) const
{
    GraphicCrop aCrop1, aCrop2;
    r1 >>= aCrop1;
    r2 >>= aCrop2;

    return aCrop1.Top == aCrop2.Top &&
           aCrop1.Bottom == aCrop2.Bottom &&
           aCrop1.Left == aCrop2.Left &&
           aCrop1.Right == aCrop2.Right;
}

bool XMLClipPropertyHandler::importXML( const OUString& rStrImpValue, uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const
{
    bool bRet = false;
    sal_Int32 nLen = rStrImpValue.getLength();
    if( nLen > 6 &&
        rStrImpValue.startsWith( GetXMLToken(XML_RECT)) &&
        rStrImpValue[4] == '(' &&
        rStrImpValue[nLen-1] == ')' )
    {
        GraphicCrop aCrop;
        OUString sTmp( rStrImpValue.copy( 5, nLen-6 ) );

        bool bHasComma = sTmp.indexOf( ',' ) != -1;
        SvXMLTokenEnumerator aTokenEnum( sTmp, bHasComma ? ',' : ' ' );

        sal_uInt16 nPos = 0;
        std::u16string_view aToken;
        while( aTokenEnum.getNextToken( aToken ) )
        {
            sal_Int32 nVal = 0;
            if( !IsXMLToken(aToken, XML_AUTO) &&
                !rUnitConverter.convertMeasureToCore( nVal, aToken ) )
                break;

            // fdo#80009 such nonsense could be written via WW8 import fdo#77454
            if (nVal == SAL_MIN_INT32 || abs(nVal) > 400000)
            {
                SAL_INFO("xmloff.style", "ignoring excessive clip " << OUString(aToken));
                nVal = 0;
            }

            switch( nPos )
            {
            case 0: aCrop.Top = nVal;   break;
            case 1: aCrop.Right = nVal; break;
            case 2: aCrop.Bottom = nVal;    break;
            case 3: aCrop.Left = nVal;  break;
            }
            nPos++;
        }

        bRet = (4 == nPos );
        if( bRet )
            rValue <<= aCrop;
    }

    return bRet;
}

bool XMLClipPropertyHandler::exportXML( OUString& rStrExpValue, const uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const
{
    bool bRet = false;
    OUStringBuffer aOut(30);
    GraphicCrop aCrop;

    if( rValue >>= aCrop )
    {
        aOut.append( GetXMLToken(XML_RECT) + "(" );
        rUnitConverter.convertMeasureToXML( aOut, aCrop.Top );
        if( !m_bODF11 )
            aOut.append( ',' );
        aOut.append( ' ' );
        rUnitConverter.convertMeasureToXML( aOut, aCrop.Right );
        if( !m_bODF11 )
            aOut.append( ',' );
        aOut.append( ' ' );
        rUnitConverter.convertMeasureToXML( aOut, aCrop.Bottom );
        if( !m_bODF11 )
            aOut.append( ',' );
        aOut.append( ' ' );
        rUnitConverter.convertMeasureToXML( aOut, aCrop.Left );
        aOut.append( ')' );
        rStrExpValue = aOut.makeStringAndClear();

        bRet = true;
    }

    return bRet;
}

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