xtixml.cpp

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        return wxInvalidObjectID ;
    }

    // new object, start with allocation
    // first make the object know to our internal registry
    SetObjectClassInfo( objectID , classInfo ) ;

    wxxVariantArray metadata ;
    wxXmlProperty *xp = node->GetProperties() ;
    while ( xp )
    {
        if ( xp->GetName() != wxString(wxT("class")) && xp->GetName() != wxString(wxT("id")) )
        {
            metadata.Add( new wxxVariant( xp->GetValue() , xp->GetName() ) ) ;
        }
        xp = xp->GetNext() ;
    }
    if ( !classInfo->NeedsDirectConstruction() )
        callbacks->AllocateObject(objectID, classInfo, metadata);

    //
    // stream back the Create parameters first
    createParams = new wxxVariant[ classInfo->GetCreateParamCount() ] ;
    createParamOids = new int[classInfo->GetCreateParamCount() ] ;
    createClassInfos = new const wxClassInfo*[classInfo->GetCreateParamCount() ] ;

#if wxUSE_UNICODE
    typedef map<wstring, wxXmlNode *> PropertyNodes ;
    typedef vector<wstring> PropertyNames ;
#else
    typedef map<string, wxXmlNode *> PropertyNodes ;
    typedef vector<string> PropertyNames ;
#endif
    PropertyNodes propertyNodes ;
    PropertyNames propertyNames ;

    while( children )
    {
        wxString name ;
        children->GetPropVal( wxT("name") , &name ) ;
        propertyNames.push_back( name.c_str() ) ;
        propertyNodes[name.c_str()] = children->GetChildren() ;
        children = children->GetNext() ;
    }

    for ( int i = 0 ; i <classInfo->GetCreateParamCount() ; ++i )
    {
        const wxChar* paramName = classInfo->GetCreateParamName(i) ;
        PropertyNodes::iterator propiter = propertyNodes.find( paramName ) ;
        const wxPropertyInfo* pi = classInfo->FindPropertyInfo( paramName ) ;
        if ( pi == 0 )
        {
            wxLogError( wxString::Format(_("Unkown Property %s"),paramName) ) ;
        }
        // if we don't have the value of a create param set in the xml
        // we use the default value
        if ( propiter != propertyNodes.end() )
        {
            wxXmlNode* prop = propiter->second ;
            if ( pi->GetTypeInfo()->IsObjectType() )
            {
                createParamOids[i] = ReadComponent( prop , callbacks ) ;
                createClassInfos[i] = dynamic_cast<const wxClassTypeInfo*>(pi->GetTypeInfo())->GetClassInfo() ;
            }
            else
            {
                createParamOids[i] = wxInvalidObjectID ;
                createParams[i] = ReadValue( prop , pi->GetTypeInfo() ) ;
                if( pi->GetFlags() & wxPROP_ENUM_STORE_LONG )
                {
                    const wxEnumTypeInfo *eti = dynamic_cast<const wxEnumTypeInfo*>( pi->GetTypeInfo() ) ;
                    if ( eti )
                    {
                        long realval ;
                        eti->ConvertToLong( createParams[i]  , realval ) ;
                        createParams[i] = wxxVariant( realval ) ;
                    }
                    else
                    {
                        wxLogError( _("Type must have enum - long conversion") ) ;
                    }
                }
                createClassInfos[i] = NULL ;
            }

            for ( size_t j = 0 ; j < propertyNames.size() ; ++j )
            {
                if ( propertyNames[j] == paramName )
                {
                    propertyNames[j] = wxEmptyString ;
                    break ;
                }
            }
        }
        else
        {
            if ( pi->GetTypeInfo()->IsObjectType() )
            {
                createParamOids[i] = wxNullObjectID ;
                createClassInfos[i] = dynamic_cast<const wxClassTypeInfo*>(pi->GetTypeInfo())->GetClassInfo() ;
            }
            else
            {
                createParams[i] = pi->GetDefaultValue() ;
                createParamOids[i] = wxInvalidObjectID ;
            }
        }
    }

    // got the parameters.  Call the Create method
    if ( classInfo->NeedsDirectConstruction() )
        callbacks->ConstructObject(objectID, classInfo,
            classInfo->GetCreateParamCount(),
            createParams, createParamOids, createClassInfos, metadata );
    else
        callbacks->CreateObject(objectID, classInfo,
            classInfo->GetCreateParamCount(),
            createParams, createParamOids, createClassInfos, metadata );

    // now stream in the rest of the properties, in the sequence their properties were written in the xml
    for ( size_t j = 0 ; j < propertyNames.size() ; ++j )
    {
        if ( propertyNames[j].length() )
        {
            PropertyNodes::iterator propiter = propertyNodes.find( propertyNames[j] ) ;
            if ( propiter != propertyNodes.end() )
            {
                wxXmlNode* prop = propiter->second ;
                const wxPropertyInfo* pi = classInfo->FindPropertyInfo( propertyNames[j].c_str() ) ;
                if ( pi->GetTypeInfo()->GetKind() == wxT_COLLECTION )
                {
                    const wxCollectionTypeInfo* collType = dynamic_cast< const wxCollectionTypeInfo* >( pi->GetTypeInfo() ) ;
                    const wxTypeInfo * elementType = collType->GetElementType() ;
                    while( prop )
                    {
                        if ( prop->GetName() != wxT("element") )
                        {
                            wxLogError( _("A non empty collection must consist of 'element' nodes" ) ) ;
                            break ;
                        }
                        wxXmlNode* elementContent = prop->GetChildren() ;
                        if ( elementContent )
                        {
                            // we skip empty elements
                            if ( elementType->IsObjectType() )
                            {
                                int valueId = ReadComponent( elementContent , callbacks ) ;
                                if ( valueId != wxInvalidObjectID )
                                {
                                    if ( pi->GetAccessor()->HasAdder() )
                                        callbacks->AddToPropertyCollectionAsObject( objectID , classInfo , pi , valueId ) ;
                                    // TODO for collections we must have a notation on taking over ownership or not
                                    if ( elementType->GetKind() == wxT_OBJECT && valueId != wxNullObjectID )
                                        callbacks->DestroyObject( valueId , GetObjectClassInfo( valueId ) ) ;
                                }
                            }
                            else
                            {
                                wxxVariant elementValue = ReadValue( elementContent , elementType ) ;
                                if ( pi->GetAccessor()->HasAdder() )
                                    callbacks->AddToPropertyCollection( objectID , classInfo ,pi , elementValue ) ;
                            }
                        }
                        prop = prop->GetNext() ;
                    }
                }
                else if ( pi->GetTypeInfo()->IsObjectType() )
                {
                    // and object can either be streamed out a string or as an object
                    // in case we have no node, then the object's streaming out has been vetoed
                    if ( prop )
                    {
                        if ( prop->GetName() == wxT("object") )
                        {
                            int valueId = ReadComponent( prop , callbacks ) ;
                            if ( valueId != wxInvalidObjectID )
                            {
                                callbacks->SetPropertyAsObject( objectID , classInfo , pi , valueId ) ;
                                if ( pi->GetTypeInfo()->GetKind() == wxT_OBJECT && valueId != wxNullObjectID )
                                    callbacks->DestroyObject( valueId , GetObjectClassInfo( valueId ) ) ;
                            }
                        }
                        else
                        {
                            wxASSERT( pi->GetTypeInfo()->HasStringConverters() ) ;
                            wxxVariant nodeval = ReadValue( prop , pi->GetTypeInfo() ) ;
                            callbacks->SetProperty( objectID, classInfo ,pi , nodeval ) ;
                        }
                    }
                }
                else if ( pi->GetTypeInfo()->IsDelegateType() )
                {
                    if ( prop )
                    {
                        wxString resstring = prop->GetContent() ;
                        wxInt32 pos = resstring.Find('.') ;
                        if ( pos != wxNOT_FOUND )
                        {
                            int sinkOid = atol(resstring.Left(pos).ToAscii()) ;
                            wxString handlerName = resstring.Mid(pos+1) ;
                            wxClassInfo* sinkClassInfo = GetObjectClassInfo( sinkOid ) ;

                            callbacks->SetConnect( objectID , classInfo , pi , sinkClassInfo ,
                                sinkClassInfo->FindHandlerInfo(handlerName) ,  sinkOid ) ;
                        }
                        else
                        {
                            wxLogError( _("incorrect event handler string, missing dot") ) ;
                        }
                    }

                }
                else
                {
                    wxxVariant nodeval = ReadValue( prop , pi->GetTypeInfo() ) ;
                    if( pi->GetFlags() & wxPROP_ENUM_STORE_LONG )
                    {
                        const wxEnumTypeInfo *eti = dynamic_cast<const wxEnumTypeInfo*>( pi->GetTypeInfo() ) ;
                        if ( eti )
                        {
                            long realval ;
                            eti->ConvertToLong( nodeval , realval ) ;
                            nodeval = wxxVariant( realval ) ;
                        }
                        else
                        {
                            wxLogError( _("Type must have enum - long conversion") ) ;
                        }
                    }
                    callbacks->SetProperty( objectID, classInfo ,pi , nodeval ) ;
                }
            }
        }
    }

    delete[] createParams ;
    delete[] createParamOids ;
    delete[] createClassInfos ;

    return objectID;
}

wxxVariant wxXmlReader::ReadValue(wxXmlNode *node,
                                  const wxTypeInfo *type )
{
    wxString content ;
    if ( node )
        content = node->GetContent() ;
    wxxVariant result ;
    type->ConvertFromString( content , result ) ;
    return result ;
}

int wxXmlReader::ReadObject( const wxString &name , wxDepersister *callbacks)
{
    wxXmlNode *iter = m_parent->GetChildren() ;
    while ( iter )
    {
        wxString entryName ;
        if ( iter->GetPropVal(wxT("name"), &entryName) )
        {
            if ( entryName == name )
                return ReadComponent( iter->GetChildren() , callbacks ) ;
        }
        iter = iter->GetNext() ;
    }
    return wxInvalidObjectID ;
}

#endif