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#include "shadwhdl.hxx"
#include <com/sun/star/uno/Any.hxx>
#include <rtl/ustrbuf.hxx>

// --
#include <com/sun/star/table/ShadowFormat.hpp>
#include <tools/color.hxx>
#include <sax/tools/converter.hxx>
#include <xmloff/xmluconv.hxx>
#include <xmloff/xmltoken.hxx>

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

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

///////////////////////////////////////////////////////////////////////////////
//
// class XMLMeasurePropHdl
//

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

sal_Bool XMLShadowPropHdl::importXML( const OUString& rStrImpValue, uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const
{
    sal_Bool bRet = sal_False;
    table::ShadowFormat aShadow;
    aShadow.Location = table::ShadowLocation_BOTTOM_RIGHT;

    sal_Bool bColorFound = sal_False;
    sal_Bool bOffsetFound = sal_False;
    SvXMLTokenEnumerator aTokenEnum( rStrImpValue );
    Color aColor( 128,128, 128 );
    OUString aToken;

    while( aTokenEnum.getNextToken( aToken ) )
    {
        if( IsXMLToken( aToken, XML_NONE ) )
        {
            aShadow.Location = table::ShadowLocation_NONE;
            bRet = sal_True;
            break;
        }
        else if( !bColorFound && aToken.compareToAscii( "#", 1 ) == 0 )
        {
            sal_Int32 nColor(0);
            bRet = ::sax::Converter::convertColor( nColor, aToken );
            if( !bRet )
                return sal_False;

            aColor.SetColor(nColor);
            bColorFound = sal_True;
        }
        else if( !bOffsetFound )
        {
            sal_Int32 nX = 0, nY = 0;

            bRet = rUnitConverter.convertMeasureToCore( nX, aToken );
            if( bRet && aTokenEnum.getNextToken( aToken ) )
                bRet = rUnitConverter.convertMeasureToCore( nY, aToken );

            if( bRet )
            {
                if( nX < 0 )
                {
                    if( nY < 0 )
                        aShadow.Location = table::ShadowLocation_TOP_LEFT;
                    else
                        aShadow.Location = table::ShadowLocation_BOTTOM_LEFT;
                }
                else
                {
                    if( nY < 0 )
                        aShadow.Location = table::ShadowLocation_TOP_RIGHT;
                    else
                        aShadow.Location = table::ShadowLocation_BOTTOM_RIGHT;
                }

                if( nX < 0 ) nX *= -1;
                if( nY < 0 ) nY *= -1;

                aShadow.ShadowWidth = sal::static_int_cast< sal_Int16 >(
                    (nX + nY) >> 1);
            }
        }
    }

    if( bRet && ( bColorFound || bOffsetFound ) )
    {
        aShadow.IsTransparent = aColor.GetTransparency() > 0;
        aShadow.Color = aColor.GetColor();
        bRet = sal_True;
    }

    rValue <<= aShadow;

    return bRet;
}

sal_Bool XMLShadowPropHdl::exportXML( OUString& rStrExpValue, const uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const
{
    sal_Bool bRet = sal_False;
      OUStringBuffer aOut;
    table::ShadowFormat aShadow;

    if( rValue >>= aShadow )
    {
        sal_Int32 nX = 1, nY = 1;

        switch( aShadow.Location )
        {
            case table::ShadowLocation_TOP_LEFT:
                nX = -1;
                nY = -1;
                break;
            case table::ShadowLocation_TOP_RIGHT:
                nY = -1;
                break;
            case table::ShadowLocation_BOTTOM_LEFT:
                nX = -1;
                break;
            case table::ShadowLocation_BOTTOM_RIGHT:
                break;
            case table::ShadowLocation_NONE:
            default:
                rStrExpValue = GetXMLToken(XML_NONE);
                return sal_True;
        }

        nX *= aShadow.ShadowWidth;
        nY *= aShadow.ShadowWidth;

        ::sax::Converter::convertColor( aOut, aShadow.Color );

        aOut.append( sal_Unicode(' ') );
        rUnitConverter.convertMeasureToXML( aOut, nX );
        aOut.append( sal_Unicode(' ') );
        rUnitConverter.convertMeasureToXML( aOut, nY );

        rStrExpValue = aOut.makeStringAndClear();

        bRet = sal_True;
    }

    return bRet;
}

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