Method destroyWriteNode

Engine/WriteNode.cpp:411–523

}

void
WriteNodePrivate::destroyWriteNode()
{
    assert( QThread::currentThread() == qApp->thread() );
    NodePtr embeddedNode = embeddedPlugin.lock();
    if (!embeddedNode) {
        return;
    }

    KnobsVec knobs = _publicInterface->getKnobs();

    genericKnobsSerialization.clear();

    std::string serializationString;
    try {
        std::ostringstream ss;
        boost::archive::xml_oarchive oArchive(ss);
        std::list<boost::shared_ptr<KnobSerialization> > serialized;
        for (KnobsVec::iterator it = knobs.begin(); it != knobs.end(); ++it) {

            // The internal node still holds a shared ptr to the knob.
            // Since we want to keep some knobs around, ensure they do not get deleted in the desctructor of the embedded node
            embeddedNode->getEffectInstance()->removeKnobFromList(it->get());

            if ( !(*it)->isDeclaredByPlugin() ) {
                continue;
            }

            //If it is a knob of this WriteNode, do not destroy it
            bool isWriteNodeKnob = false;
            for (std::list<boost::weak_ptr<KnobI> >::iterator it2 = writeNodeKnobs.begin(); it2 != writeNodeKnobs.end(); ++it2) {
                if (it2->lock() == *it) {
                    isWriteNodeKnob = true;
                    break;
                }
            }
            if (isWriteNodeKnob) {
                continue;
            }

            //Keep pages around they will be re-used
            KnobPage* isPage = dynamic_cast<KnobPage*>( it->get() );
            if (isPage) {
                continue;
            }

            //This is a knob of the Writer plug-in

            //Serialize generic knobs and keep them around until we create a new Writer plug-in
            bool mustSerializeKnob;
            bool isGeneric = isGenericKnob( (*it)->getName(), &mustSerializeKnob );
            if (!isGeneric || mustSerializeKnob) {

                /*if (!isGeneric && !(*it)->getDefaultIsSecret()) {
                    // Don't save the secret state otherwise some knobs could be invisible when cloning the serialization even if we change format
                    (*it)->setSecret(false);
                }*/
                boost::shared_ptr<KnobSerialization> s( new KnobSerialization(*it) );