Method createReadNode

Engine/PrecompNode.cpp:524–599

}

void
PrecompNodePrivate::createReadNode()
{
    NodePtr oldReadNode;
    {
        QMutexLocker k(&dataMutex);
        oldReadNode = readNode;
    }

    if (oldReadNode) {
        //Ensure it is no longer part of the tree
        oldReadNode->destroyNode(false, false);


        //Reset the pointer
        QMutexLocker k(&dataMutex);
        readNode.reset();
    }

    NodePtr writeNode = getWriteNodeFromPreComp();
    if (!writeNode) {
        return;
    }

    KnobIPtr fileNameKnob = writeNode->getKnobByName(kOfxImageEffectFileParamName);
    if (!fileNameKnob) {
        return;
    }

    KnobOutputFile* fileKnob = dynamic_cast<KnobOutputFile*>( fileNameKnob.get() );
    if (!fileKnob) {
        return;
    }

    std::string pattern = fileKnob->getValue();
    QString qpattern = QString::fromUtf8( pattern.c_str() );
    std::string ext = QtCompat::removeFileExtension(qpattern).toLower().toStdString();
    std::string found = appPTR->getReaderPluginIDForFileType(ext);
    if ( found.empty() ) {
        std::stringstream ss;
        ss << tr("No plugin capable of decoding %1 was found")
            .arg( QString::fromUtf8( ext.c_str() ) ).toStdString();
        Dialogs::errorDialog( tr("Pre-Comp").toStdString(), ss.str() );

        return;
    }

    QString readPluginID = QString::fromUtf8( found.c_str() );
    QString fixedNamePrefix = QString::fromUtf8( _publicInterface->getScriptName_mt_safe().c_str() );
    fixedNamePrefix.append( QLatin1Char('_') );
    fixedNamePrefix.append( QString::fromUtf8("readNode") );
    fixedNamePrefix.append( QLatin1Char('_') );

    CreateNodeArgs args( readPluginID.toStdString(), app.lock()->getProject() );
    args.setProperty<bool>(kCreateNodeArgsPropOutOfProject, true);
    args.setProperty<bool>(kCreateNodeArgsPropNoNodeGUI, true);
    args.setProperty<std::string>(kCreateNodeArgsPropNodeInitialName, fixedNamePrefix.toStdString());
    args.addParamDefaultValue<std::string>(kOfxImageEffectFileParamName, pattern);