libreoffice/xmloff/source/forms/propertyexport.cxx

/*************************************************************************
 *
 *  $RCSfile: propertyexport.cxx,v $
 *
 *  $Revision: 1.26 $
 *
 *  last change: $Author: hr $ $Date: 2004-08-02 14:15:40 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  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
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (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.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): _______________________________________
 *
 *
 ************************************************************************/

#include <stdio.h>

#ifndef _XMLOFF_FORMS_PROPERTYEXPORT_HXX_
#include "propertyexport.hxx"
#endif
#ifndef _XMLOFF_XMLEXP_HXX
#include "xmlexp.hxx"
#endif
#ifndef _XMLOFF_FORMS_STRINGS_HXX_
#include "strings.hxx"
#endif
#ifndef _XMLOFF_XMLNMSPE_HXX
#include "xmlnmspe.hxx"
#endif
#ifndef _XMLOFF_XMLUCONV_HXX
#include "xmluconv.hxx"
#endif
#ifndef _XMLOFF_FAMILIES_HXX_
#include "families.hxx"
#endif
#ifndef _OSL_DIAGNOSE_H_
#include <osl/diagnose.h>
#endif
#ifndef _COM_SUN_STAR_BEANS_PROPERTYATTRIBUTE_HPP_
#include <com/sun/star/beans/PropertyAttribute.hpp>
#endif
#ifndef _COM_SUN_STAR_BEANS_XPROPERTYSTATE_HPP_
#include <com/sun/star/beans/XPropertyState.hpp>
#endif
#ifndef _COM_SUN_STAR_UTIL_DATE_HPP_
#include <com/sun/star/util/Date.hpp>
#endif
#ifndef _COM_SUN_STAR_UTIL_TIME_HPP_
#include <com/sun/star/util/Time.hpp>
#endif
#ifndef _COM_SUN_STAR_UTIL_DATETIME_HPP_
#include <com/sun/star/util/DateTime.hpp>
#endif
#ifndef _OSL_DIAGNOSE_H_
#include <osl/diagnose.h>
#endif
#ifndef _COMPHELPER_EXTRACT_HXX_
#include <comphelper/extract.hxx>
#endif
#ifndef _COMPHELPER_SEQUENCE_HXX_
#include <comphelper/sequence.hxx>
#endif
#ifndef _COMPHELPER_TYPES_HXX_
#include <comphelper/types.hxx>
#endif
#ifndef _XMLOFF_FORMS_CALLBACKS_HXX_
#include "callbacks.hxx"
#endif

#ifndef _UNOTOOLS_DATETIME_HXX_
#include <unotools/datetime.hxx>
#endif
#ifndef _DATE_HXX
#include <tools/date.hxx>
#endif
#ifndef _TOOLS_TIME_HXX
#include <tools/time.hxx>
#endif
#ifndef _DATETIME_HXX
#include <tools/datetime.hxx>
#endif

//.........................................................................
namespace xmloff
{
//.........................................................................

    using namespace ::com::sun::star::uno;
    using namespace ::com::sun::star::lang;
    using namespace ::com::sun::star::beans;

    // NO using namespace ...util !!!
    // need a tools Date/Time/DateTime below, which would conflict with the uno types then

    using namespace ::comphelper;

    //=====================================================================
    //= OPropertyExport
    //=====================================================================
    //---------------------------------------------------------------------
    OPropertyExport::OPropertyExport(IFormsExportContext& _rContext, const Reference< XPropertySet >& _rxProps)
        :m_rContext(_rContext)
        ,m_xProps(_rxProps)
    {
        // caching
        ::rtl::OUStringBuffer aBuffer;
        m_rContext.getGlobalContext().GetMM100UnitConverter().convertBool(aBuffer, sal_True);
        m_sValueTrue = aBuffer.makeStringAndClear();
        m_rContext.getGlobalContext().GetMM100UnitConverter().convertBool(aBuffer, sal_False);
        m_sValueFalse = aBuffer.makeStringAndClear();

        m_xPropertyInfo = m_xProps->getPropertySetInfo();
        OSL_ENSURE(m_xPropertyInfo.is(), "OPropertyExport::OPropertyExport: need an XPropertySetInfo!");

        // collect the properties which need to be exported
        examinePersistence();
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportRemainingProperties()
    {
        // the properties tag (will be created if we have at least one no-default property)
        SvXMLElementExport* pPropertiesTag = NULL;

        try
        {
            Reference< XPropertyState > xPropertyState(m_xProps, UNO_QUERY);

            Any aValue;
            ::rtl::OUString sValue;

            // loop through all the properties which are yet to be exported
            for (   ConstStringSetIterator  aProperty = m_aRemainingProps.begin();
                    aProperty != m_aRemainingProps.end();
                    ++aProperty
                )
            {
                DBG_CHECK_PROPERTY_NO_TYPE(*aProperty);

    #ifdef DBG_UTIL
                const ::rtl::OUString sPropertyName = *aProperty;
    #endif
                // if the property state is DEFAULT, it does not need to be written
                if (xPropertyState.is() && (PropertyState_DEFAULT_VALUE == xPropertyState->getPropertyState(*aProperty)))
                    continue;

                // now that we have the first sub-tag we need the form:properties element
                if (!pPropertiesTag)
                    pPropertiesTag = new SvXMLElementExport(m_rContext.getGlobalContext(), XML_NAMESPACE_FORM, token::XML_PROPERTIES, sal_True, sal_True);

                // add the name attribute
                AddAttribute(XML_NAMESPACE_FORM, token::XML_PROPERTY_NAME, *aProperty);

                // get the value
                aValue = m_xProps->getPropertyValue(*aProperty);

                if (sal_False)
                {
                    ::rtl::OUString sTemp;
                    aValue >>= sTemp;
                    aValue <<= makeAny(Sequence< ::rtl::OUString >(&sTemp, 1));
                }

                // is it a sequence
                sal_Bool bIsSequence = TypeClass_SEQUENCE == aValue.getValueTypeClass();
                // the type of the property, maybe reduced to the element type of a sequence
                Type aSimpleType;
                if (bIsSequence)
                    aSimpleType = getSequenceElementType(aValue.getValueType());
                else
                    aSimpleType = aValue.getValueType();

                // the type attribute
                // modified by BerryJia for Bug102407
                com::sun::star::beans::Property aPropertyStruct;
                aPropertyStruct = m_xPropertyInfo->getPropertyByName(*aProperty);
                token::XMLTokenEnum eValueType =
                            implGetPropertyXMLType(aPropertyStruct.Type);
                sal_Bool bIsVoid = !bIsSequence &&
                        TypeClass_VOID == aValue.getValueType().getTypeClass();
                if( bIsVoid )
                    AddAttribute(XML_NAMESPACE_OFFICE, token::XML_VALUE_TYPE,
                                 token::XML_VOID );
                else
                    AddAttribute(XML_NAMESPACE_OFFICE, token::XML_VALUE_TYPE,
                                 eValueType);
                token::XMLTokenEnum eValue =
                        token::XML_BOOLEAN == eValueType
                            ? token::XML_BOOLEAN_VALUE
                            : (token::XML_STRING == eValueType
                                    ? token::XML_STRING_VALUE
                                    : token::XML_VALUE);

                if( !bIsSequence && !bIsVoid )
                {   // the simple case
                    //add by BerryJia for Bug102407
                    sValue = implConvertAny(aValue);
                    AddAttribute(XML_NAMESPACE_OFFICE, eValue, sValue );
                }


                // start the property tag
                SvXMLElementExport aValueTag(m_rContext.getGlobalContext(),
                        XML_NAMESPACE_FORM,
                        bIsSequence ? token::XML_LIST_PROPERTY
                                    : token::XML_PROPERTY, sal_True, sal_True);

                if (!bIsSequence)
                    continue;

                // the not-that-simple case, we need to iterate through the sequence elements
                IIterator* pSequenceIterator = NULL;
                switch (aSimpleType.getTypeClass())
                {
                    case TypeClass_STRING:
                        pSequenceIterator = new OSequenceIterator< ::rtl::OUString >(aValue);
                        break;
                    case TypeClass_DOUBLE:
                        pSequenceIterator = new OSequenceIterator< double >(aValue);
                        break;
                    case TypeClass_BOOLEAN:
                        pSequenceIterator = new OSequenceIterator< sal_Bool >(aValue);
                        break;
                    case TypeClass_BYTE:
                        pSequenceIterator = new OSequenceIterator< sal_Int8 >(aValue);
                        break;
                    case TypeClass_SHORT:
                        pSequenceIterator = new OSequenceIterator< sal_Int16 >(aValue);
                        break;
                    case TypeClass_LONG:
                        pSequenceIterator = new OSequenceIterator< sal_Int32 >(aValue);
                        break;
                    case TypeClass_HYPER:
                        pSequenceIterator = new OSequenceIterator< sal_Int64 >(aValue);
                        break;
                    default:
                        OSL_ENSURE(sal_False, "OPropertyExport::exportRemainingProperties: unsupported sequence tyoe !");
                        break;
                }
                if (pSequenceIterator)
                {
                    while (pSequenceIterator->hasMoreElements())
                    {
                        sValue =
                            implConvertAny(pSequenceIterator->nextElement());
                        AddAttribute(XML_NAMESPACE_OFFICE, eValue, sValue );
                        SvXMLElementExport aValueTag(
                                m_rContext.getGlobalContext(),
                                XML_NAMESPACE_FORM, token::XML_LIST_VALUE,
                                sal_True, sal_False);
                    }
                }
                delete pSequenceIterator;
            }
        }
        catch(...)
        {
            delete pPropertiesTag;
            throw;
        }
        delete pPropertiesTag;
    }

    //---------------------------------------------------------------------
    void OPropertyExport::examinePersistence()
    {
        m_aRemainingProps.clear();
        Sequence< Property > aProperties = m_xPropertyInfo->getProperties();
        const Property* pProperties = aProperties.getConstArray();
        for (sal_Int32 i=0; i<aProperties.getLength(); ++i, ++pProperties)
        {
            static sal_Int32 nExcludeIndicator = PropertyAttribute::READONLY | PropertyAttribute::TRANSIENT;
            if (pProperties->Attributes & nExcludeIndicator)
                // no readonly props, no transient props
                continue;
            m_aRemainingProps.insert(pProperties->Name);
        }
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportStringPropertyAttribute( const sal_uInt16 _nNamespaceKey, const sal_Char* _pAttributeName,
            const ::rtl::OUString& _rPropertyName )
    {
        DBG_CHECK_PROPERTY( _rPropertyName, ::rtl::OUString );

        // no try-catch here, this would be to expensive. The outer scope has to handle exceptions (which should not
        // happen if we're used correctly :)

        // this is way simple, as we don't need to convert anything (the property already is a string)

        // get the string
        ::rtl::OUString sPropValue;
        m_xProps->getPropertyValue( _rPropertyName ) >>= sPropValue;

        // add the attribute
        if ( sPropValue.getLength() )
            AddAttribute( _nNamespaceKey, _pAttributeName, sPropValue );

        // the property does not need to be handled anymore
        exportedProperty( _rPropertyName );
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportBooleanPropertyAttribute(const sal_uInt16 _nNamespaceKey, const sal_Char* _pAttributeName,
            const ::rtl::OUString& _rPropertyName, const sal_Int8 _nBooleanAttributeFlags)
    {
        DBG_CHECK_PROPERTY_NO_TYPE( _rPropertyName );
        // no check of the property value type: this method is allowed to be called with any interger properties
        // (e.g. sal_Int32, sal_uInt16 etc)

        sal_Bool bDefault = (BOOLATTR_DEFAULT_TRUE == (BOOLATTR_DEFAULT_MASK & _nBooleanAttributeFlags));
        sal_Bool bDefaultVoid = (BOOLATTR_DEFAULT_VOID == (BOOLATTR_DEFAULT_MASK & _nBooleanAttributeFlags));

        // get the value
        sal_Bool bCurrentValue = bDefault;
        Any aCurrentValue = m_xProps->getPropertyValue( _rPropertyName );
        if (aCurrentValue.hasValue())
        {
            bCurrentValue = ::cppu::any2bool(aCurrentValue);
            // this will extract a boolean value even if the Any contains a int or short or something like that ...

            if (_nBooleanAttributeFlags & BOOLATTR_INVERSE_SEMANTICS)
                bCurrentValue = !bCurrentValue;

            // we have a non-void current value
            if (bDefaultVoid || (bDefault != bCurrentValue))
                // and (the default is void, or the non-void default does not equal the current value)
                // -> write the attribute
                AddAttribute(_nNamespaceKey, _pAttributeName, bCurrentValue ? m_sValueTrue : m_sValueFalse);
        }
        else
            // we have a void current value
            if (!bDefaultVoid)
                // and we have a non-void default
                // -> write the attribute
                AddAttribute(_nNamespaceKey, _pAttributeName, bCurrentValue ? m_sValueTrue : m_sValueFalse);

        // the property does not need to be handled anymore
        exportedProperty( _rPropertyName );
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportInt16PropertyAttribute(const sal_uInt16 _nNamespaceKey, const sal_Char* _pAttributeName,
        const ::rtl::OUString& _rPropertyName, const sal_Int16 _nDefault)
    {
        DBG_CHECK_PROPERTY( _rPropertyName, sal_Int16 );

        // get the value
        sal_Int16 nCurrentValue(_nDefault);
        m_xProps->getPropertyValue( _rPropertyName ) >>= nCurrentValue;

        // add the attribute
        if (_nDefault != nCurrentValue)
        {
            // let the formatter of the export context build a string
            ::rtl::OUStringBuffer sBuffer;
            m_rContext.getGlobalContext().GetMM100UnitConverter().convertNumber(sBuffer, (sal_Int32)nCurrentValue);

            AddAttribute(_nNamespaceKey, _pAttributeName, sBuffer.makeStringAndClear());
        }

        // the property does not need to be handled anymore
        exportedProperty( _rPropertyName );
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportInt32PropertyAttribute( const sal_uInt16 _nNamespaceKey, const sal_Char* _pAttributeName,
        const ::rtl::OUString& _rPropertyName, const sal_Int32 _nDefault )
    {
        DBG_CHECK_PROPERTY( _rPropertyName, sal_Int32 );

        // get the value
        sal_Int32 nCurrentValue( _nDefault );
        m_xProps->getPropertyValue( _rPropertyName ) >>= nCurrentValue;

        // add the attribute
        if ( _nDefault != nCurrentValue )
        {
            // let the formatter of the export context build a string
            ::rtl::OUStringBuffer sBuffer;
            m_rContext.getGlobalContext().GetMM100UnitConverter().convertNumber( sBuffer, nCurrentValue );

            AddAttribute( _nNamespaceKey, _pAttributeName, sBuffer.makeStringAndClear() );
        }

        // the property does not need to be handled anymore
        exportedProperty( _rPropertyName );
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportEnumPropertyAttribute(
            const sal_uInt16 _nNamespaceKey, const sal_Char* _pAttributeName,
            const sal_Char* _pPropertyName, const SvXMLEnumMapEntry* _pValueMap,
            const sal_Int32 _nDefault, const sal_Bool _bVoidDefault)
    {
        // get the value
        sal_Int32 nCurrentValue(_nDefault);
        ::rtl::OUString sPropertyName(::rtl::OUString::createFromAscii(_pPropertyName));
        Any aValue = m_xProps->getPropertyValue(sPropertyName);

        if (aValue.hasValue())
        {   // we have a non-void current value
            ::cppu::enum2int(nCurrentValue, aValue);

            // add the attribute
            if ((_nDefault != nCurrentValue) || _bVoidDefault)
            {   // the default does not equal the value, or the default is void and the value isn't

                // let the formatter of the export context build a string
                ::rtl::OUStringBuffer sBuffer;
                m_rContext.getGlobalContext().GetMM100UnitConverter().convertEnum(sBuffer, (sal_uInt16)nCurrentValue, _pValueMap);

                AddAttribute(_nNamespaceKey, _pAttributeName, sBuffer.makeStringAndClear());
            }
        }
        else
        {
            if (!_bVoidDefault)
                AddAttributeASCII(_nNamespaceKey, _pAttributeName, "");
        }

        // the property does not need to be handled anymore
        exportedProperty(sPropertyName);
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportTargetFrameAttribute()
    {
        DBG_CHECK_PROPERTY( PROPERTY_TARGETFRAME, ::rtl::OUString );

        ::rtl::OUString sTargetFrame = comphelper::getString(m_xProps->getPropertyValue(PROPERTY_TARGETFRAME));
        if (0 != sTargetFrame.compareToAscii("_blank"))
        {   // an empty string and "_blank" have the same meaning and don't have to be written
            AddAttribute(OAttributeMetaData::getCommonControlAttributeNamespace(CCA_TARGET_FRAME)
                        ,OAttributeMetaData::getCommonControlAttributeName(CCA_TARGET_FRAME)
                        ,sTargetFrame);
        }

        exportedProperty(PROPERTY_TARGETFRAME);
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportRelativeTargetLocation(const ConstAsciiString& _sPropertyName,sal_Int32 _nProperty)
    {
        DBG_CHECK_PROPERTY( _sPropertyName, ::rtl::OUString );

        ::rtl::OUString sTargetLocation = comphelper::getString(m_xProps->getPropertyValue(_sPropertyName));
        if ( sTargetLocation.getLength() )
            sTargetLocation = m_rContext.getGlobalContext().GetRelativeReference(sTargetLocation);
        AddAttribute(OAttributeMetaData::getCommonControlAttributeNamespace(_nProperty)
                    ,OAttributeMetaData::getCommonControlAttributeName(_nProperty)
                    , sTargetLocation);

        exportedProperty(_sPropertyName);
    }
    //---------------------------------------------------------------------
    void OPropertyExport::flagStyleProperties()
    {
        // flag all the properties which are part of the style as "handled"
        UniReference< XMLPropertySetMapper > xStylePropertiesSupplier = m_rContext.getStylePropertyMapper()->getPropertySetMapper();
        for (sal_Int32 i=0; i<xStylePropertiesSupplier->GetEntryCount(); ++i)
            exportedProperty(xStylePropertiesSupplier->GetEntryAPIName(i));

        // the font properties are exported as single properties, but there is a FontDescriptor property which
        // collects them all-in-one, this has been exported implicitly
        exportedProperty(PROPERTY_FONT);

        // for the DateFormat and TimeFormat, there exist wrapper properties which has been exported as
        // style, too
        exportedProperty(PROPERTY_DATEFORMAT);
        exportedProperty(PROPERTY_TIMEFORMAT);
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportGenericPropertyAttribute(
            const sal_uInt16 _nAttributeNamespaceKey, const sal_Char* _pAttributeName, const sal_Char* _pPropertyName)
    {
        DBG_CHECK_PROPERTY_ASCII_NO_TYPE( _pPropertyName );

        ::rtl::OUString sPropertyName = ::rtl::OUString::createFromAscii(_pPropertyName);
        exportedProperty(sPropertyName);

        Any aCurrentValue = m_xProps->getPropertyValue(sPropertyName);
        if (!aCurrentValue.hasValue())
            // nothing to do without a concrete value
            return;

        ::rtl::OUString sValue = implConvertAny(aCurrentValue);
        if (!sValue.getLength() && (TypeClass_STRING == aCurrentValue.getValueTypeClass()))
        {
            // check whether or not the property is allowed to be VOID
            Property aProperty = m_xPropertyInfo->getPropertyByName(sPropertyName);
            if ((aProperty.Attributes & PropertyAttribute::MAYBEVOID) == 0)
                // the string is empty, and the property is not allowed to be void
                // -> don't need to write the attibute, 'cause missing it is unambiguous
                return;
        }

        // finally add the attribuite to the context
        AddAttribute(_nAttributeNamespaceKey, _pAttributeName, sValue);
    }

    //---------------------------------------------------------------------
    void OPropertyExport::exportStringSequenceAttribute(const sal_uInt16 _nAttributeNamespaceKey, const sal_Char* _pAttributeName,
        const ::rtl::OUString& _rPropertyName,
        const sal_Unicode _aQuoteCharacter, const sal_Unicode _aListSeparator)
    {
        DBG_CHECK_PROPERTY( _rPropertyName, Sequence< ::rtl::OUString > );
        OSL_ENSURE(_aListSeparator != 0, "OPropertyExport::exportStringSequenceAttribute: invalid separator character!");

        Sequence< ::rtl::OUString > aItems;
        m_xProps->getPropertyValue( _rPropertyName ) >>= aItems;

        ::rtl::OUString sFinalList;

        // unfortunately the OUString can't append single sal_Unicode characters ...
        const ::rtl::OUString sQuote(&_aQuoteCharacter, 1);
        const ::rtl::OUString sSeparator(&_aListSeparator, 1);
        const sal_Bool bQuote = 0 != sQuote.getLength();

        // concatenate the string items
        const ::rtl::OUString* pItems = aItems.getConstArray();
        const ::rtl::OUString* pEnd = pItems + aItems.getLength();
        const ::rtl::OUString* pLastElement = pEnd - 1;
        for (   ;
                pItems != pEnd;
                ++pItems
            )
        {
            OSL_ENSURE(!_aQuoteCharacter || (-1 == pItems->indexOf(_aQuoteCharacter)),
                "OPropertyExport::exportStringSequenceAttribute: there is an item which contains the quote character!");
            OSL_ENSURE(_aQuoteCharacter || (-1 == pItems->indexOf(_aListSeparator)),
                "OPropertyExport::exportStringSequenceAttribute: no quote character, but there is an item containing the separator character!");

            if (bQuote)
                sFinalList += sQuote;
            sFinalList += *pItems;
            if (bQuote)
                sFinalList += sQuote;

            if (pItems != pLastElement)
                sFinalList += sSeparator;
        }

        if (sFinalList.getLength())
            AddAttribute(_nAttributeNamespaceKey, _pAttributeName, sFinalList);

        exportedProperty( _rPropertyName );
    }

    //---------------------------------------------------------------------
    ::rtl::OUString OPropertyExport::implConvertAny(const Any& _rValue)
    {
        ::rtl::OUStringBuffer aBuffer;
        switch (_rValue.getValueTypeClass())
        {
            case TypeClass_STRING:
            {   // extract the string
                ::rtl::OUString sCurrentValue;
                _rValue >>= sCurrentValue;
                aBuffer.append(sCurrentValue);
            }
            break;
            case TypeClass_DOUBLE:
                // let the unit converter format is as string
                m_rContext.getGlobalContext().GetMM100UnitConverter().convertDouble(aBuffer, getDouble(_rValue));
                break;
            case TypeClass_BOOLEAN:
                aBuffer = getBOOL(_rValue) ? m_sValueTrue : m_sValueFalse;
                break;
            case TypeClass_BYTE:
            case TypeClass_SHORT:
            case TypeClass_LONG:
                // let the unit converter format is as string
                m_rContext.getGlobalContext().GetMM100UnitConverter().convertNumber(aBuffer, getINT32(_rValue));
                break;
            case TypeClass_HYPER:
                // TODO
                OSL_ENSURE(sal_False, "OPropertyExport::implConvertAny: missing implementation for sal_Int64!");
                break;
            case TypeClass_ENUM:
            {
                // convert it into an int32
                sal_Int32 nValue;
                ::cppu::enum2int(nValue, _rValue);
                m_rContext.getGlobalContext().GetMM100UnitConverter().convertNumber(aBuffer, getINT32(_rValue));
            }
            break;
            default:
            {   // hmmm .... what else do we know?
                double fValue = 0;
                ::com::sun::star::util::Date aDate;
                ::com::sun::star::util::Time aTime;
                ::com::sun::star::util::DateTime aDateTime;
                if (_rValue >>= aDate)
                {
                    Date aToolsDate;
                    ::utl::typeConvert(aDate, aToolsDate);
                    fValue = aToolsDate.GetDate();
                }
                else if (_rValue >>= aTime)
                {
                    fValue = ((aTime.Hours * 60 + aTime.Minutes) * 60 + aTime.Seconds) * 100 + aTime.HundredthSeconds;
                    fValue = fValue / 8640000.0;
                }
                else if (_rValue >>= aDateTime)
                {
                    DateTime aToolsDateTime;
                    ::utl::typeConvert(aDateTime, aToolsDateTime);
                    // the time part (the digits behind the comma)
                    fValue = ((aDateTime.Hours * 60 + aDateTime.Minutes) * 60 + aDateTime.Seconds) * 100 + aDateTime.HundredthSeconds;
                    fValue = fValue / 8640000.0;
                    // plus the data part (the digits in front of the comma)
                    fValue += aToolsDateTime.GetDate();
                }
                else
                {
                    // if any other types are added here, please remember to adjust implGetPropertyXMLType accordingly

                    // no more options ...
                    OSL_ENSURE(sal_False, "OPropertyExport::implConvertAny: unsupported value type!");
                    break;
                }
                // let the unit converter format is as string
                m_rContext.getGlobalContext().GetMM100UnitConverter().convertDouble(aBuffer, fValue);
            }
            break;
        }

        return aBuffer.makeStringAndClear();
    }


    //---------------------------------------------------------------------
    token::XMLTokenEnum OPropertyExport::implGetPropertyXMLType(const ::com::sun::star::uno::Type& _rType)
    {
        // handle the type description
        switch (_rType.getTypeClass())
        {
            case TypeClass_STRING:
                return token::XML_STRING;
            case TypeClass_DOUBLE:
            case TypeClass_BYTE:
            case TypeClass_SHORT:
            case TypeClass_LONG:
            case TypeClass_HYPER:
            case TypeClass_ENUM:
                return token::XML_FLOAT;
            case TypeClass_BOOLEAN:
                return token::XML_BOOLEAN;

            default:
                return token::XML_FLOAT;
        }
    }

#ifdef DBG_UTIL
    //---------------------------------------------------------------------
    void OPropertyExport::AddAttribute(sal_uInt16 _nPrefix, const sal_Char* _pName, const ::rtl::OUString& _rValue)
    {
        OSL_ENSURE(0 == m_rContext.getGlobalContext().GetXAttrList()->getValueByName(::rtl::OUString::createFromAscii(_pName)).getLength(),
            "OPropertyExport::AddAttribute: already have such an attribute");

        m_rContext.getGlobalContext().AddAttribute(_nPrefix, _pName, _rValue);
    }

    //---------------------------------------------------------------------
    void OPropertyExport::AddAttribute( sal_uInt16 _nPrefix, const ::rtl::OUString& _rName, const ::rtl::OUString& _rValue )
    {
        OSL_ENSURE(0 == m_rContext.getGlobalContext().GetXAttrList()->getValueByName( _rName ).getLength(),
            "OPropertyExport::AddAttribute: already have such an attribute");

        m_rContext.getGlobalContext().AddAttribute( _nPrefix, _rName, _rValue );
    }

    //---------------------------------------------------------------------
    void OPropertyExport::AddAttributeASCII(sal_uInt16 _nPrefix, const sal_Char* _pName, const sal_Char *pValue)
    {
        OSL_ENSURE(0 == m_rContext.getGlobalContext().GetXAttrList()->getValueByName(::rtl::OUString::createFromAscii(_pName)).getLength(),
            "OPropertyExport::AddAttributeASCII: already have such an attribute");

        m_rContext.getGlobalContext().AddAttributeASCII(_nPrefix, _pName, pValue);
    }

    //---------------------------------------------------------------------
    void OPropertyExport::AddAttribute(sal_uInt16 _nPrefix, ::xmloff::token::XMLTokenEnum _eName, const ::rtl::OUString& _rValue)
    {
        OSL_ENSURE(0 == m_rContext.getGlobalContext().GetXAttrList()->getValueByName(::xmloff::token::GetXMLToken(_eName)).getLength(),
            "OPropertyExport::AddAttribute: already have such an attribute");

        m_rContext.getGlobalContext().AddAttribute(_nPrefix, _eName, _rValue);
    }

    //---------------------------------------------------------------------
    void OPropertyExport::AddAttribute(sal_uInt16 _nPrefix, ::xmloff::token::XMLTokenEnum _eName, ::xmloff::token::XMLTokenEnum _eValue )
    {
        OSL_ENSURE(0 == m_rContext.getGlobalContext().GetXAttrList()->getValueByName(::xmloff::token::GetXMLToken(_eName)).getLength(),
            "OPropertyExport::AddAttribute: already have such an attribute");

        m_rContext.getGlobalContext().AddAttribute(_nPrefix, _eName, _eValue);
    }

    //---------------------------------------------------------------------
    void OPropertyExport::dbg_implCheckProperty(const ::rtl::OUString& _rPropertyName, const Type* _pType)
    {
        try
        {
            // the property must exist
            if (!m_xPropertyInfo->hasPropertyByName(_rPropertyName))
            {
                OSL_ENSURE(sal_False,
                    ::rtl::OString("OPropertyExport::dbg_implCheckProperty: no property with the name ") +=
                    ::rtl::OString(_rPropertyName.getStr(), _rPropertyName.getLength(), RTL_TEXTENCODING_ASCII_US) +=
                    ::rtl::OString("!"));
                return;
            }

            if (_pType)
            {
                // and it must have the correct type
                Property aPropertyDescription = m_xPropertyInfo->getPropertyByName(_rPropertyName);
                OSL_ENSURE(aPropertyDescription.Type.equals(*_pType), "OPropertyExport::dbg_implCheckProperty: invalid property type!");
            }
        }
        catch(Exception&)
        {
            OSL_ENSURE(sal_False, "OPropertyExport::dbg_implCheckProperty: caught an exception, could not check the property!");
        }
    }
#endif // DBG_UTIL - dbg_implCheckProperty

//.........................................................................
}   // namespace xmloff
//.........................................................................