Re: [Opensg-core] 2.0 Field Access problem

[Marcus R. <mr...@ig...>]

Hi,

>ok here you lost me a little bit, automatically called but from where ?
>Just for my reference did you take a look at the 2.0
>MultiDisplayWindow  and we are talking about this ?
>  
>
Yes, I'm talking about MultiDisplayWindow in 2.0. You have done some 
changes but it chrashed at
the marked line: (!!!!!)

void MultiDisplayWindow::updateViewport(ViewportPtr &serverPort,
                                        ViewportPtr &clientPort)
{
    bool equal;

    // Compare the pointers.
    if(serverPort == clientPort)
        return;

    if(serverPort == NullFC || clientPort == NullFC)
        return;

    if(serverPort->getType() != serverPort->getType())
        return;
   
    const FieldContainerType &type = serverPort->getType();

    UInt32 fcount = osgMin(serverPort->getType().getNumFieldDescs(),
                           clientPort->getType().getNumFieldDescs());
   
    for(UInt32 i = 1;i <= fcount; ++i)
    {
        const FieldDescriptionBase *fdesc = type.getFieldDesc(i);

        // ignore attachments
        if(strcmp(fdesc->getCName(), "parent"     ) == 0 ||
           strcmp(fdesc->getCName(), "camera"     ) == 0 ||
           strcmp(fdesc->getCName(), "attachments") == 0)
        {
            continue;
        }

        BitVector mask = fdesc->getFieldMask();
  
        const FieldDescriptionBase *dst_desc =
            serverPort->getType().getFieldDesc(i);

        const FieldDescriptionBase *src_desc =
            clientPort->getType().getFieldDesc(i);

        printf("desc %p %p\n",src_desc,dst_desc);

              Field *dst_field = serverPort->editField(i);

        const Field *cdst_field = serverPort->getField(i);
        const Field *src_field  = clientPort->getField(i);
   
        const FieldType &dst_ftype = dst_desc->getFieldType();
        const FieldType &src_ftype = src_desc->getFieldType();

        if(dst_ftype != src_ftype)
            continue;
   
        equal = true;

        printf("%s %p %p\n",fdesc->getCName(),src_field, dst_field);

        if(strstr(dst_ftype.getCName(), "Ptr") == NULL)
        {
/*
            if(dst_ftype.getCardinality() == FieldType::MULTI_FIELD)
            {
                std::string av, bv;

                dst_desc->pushValueToString(dst_field, av);
                src_desc->pushValueToString(src_field, bv);

                if(av != bv)
                    equal = false;
            }
            else
            {
                // This is very slow with multi fields!!!!
                std::string av, bv;

                dst_desc->pushValueToString(dst_field, av);
                src_desc->pushValueToString(src_field, bv);

                if(av != bv)
                    equal = false;
            }

            if(equal == false)
 */
            if(dst_desc->equal(src_field, dst_field) == true)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
dst_field is NULL. Should be cdst_field.
            {
                dst_desc->copyValues(src_field, dst_field);
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I don't know haw to do this in 2.0 as I'm not able to ge a non const 
Ptr-Field
with the dynamic interface

Marcus