Method refreshPluginSelectorKnob

Engine/WriteNode.cpp:884–929

} // WriteNodePrivate::createWriteNode

void
WriteNodePrivate::refreshPluginSelectorKnob()
{
    boost::shared_ptr<KnobOutputFile> fileKnob = outputFileKnob.lock();

    assert(fileKnob);
    std::string filePattern = fileKnob->getValue();
    std::vector<ChoiceOption> entries;
    entries.push_back(ChoiceOption(kPluginSelectorParamEntryDefault, "", tr("Use the default plug-in chosen from the Preferences to write this file format").toStdString()));

    QString qpattern = QString::fromUtf8( filePattern.c_str() );
    std::string ext = QtCompat::removeFileExtension(qpattern).toLower().toStdString();
    std::string pluginID;
    if ( !ext.empty() ) {
        pluginID = appPTR->getWriterPluginIDForFileType(ext);
        IOPluginSetForFormat writersForFormat;
        appPTR->getWritersForFormat(ext, &writersForFormat);

        // Reverse it so that we sort them by decreasing score order
        for (IOPluginSetForFormat::reverse_iterator it = writersForFormat.rbegin(); it != writersForFormat.rend(); ++it) {
            Plugin* plugin = appPTR->getPluginBinary(QString::fromUtf8( it->pluginID.c_str() ), -1, -1, false);
            std::stringstream ss;
            ss << "Use " << plugin->getPluginLabel().toStdString() << " version ";
            ss << plugin->getMajorVersion() << "." << plugin->getMinorVersion();
            ss << " to write this file format";
            entries.push_back( ChoiceOption(plugin->getPluginID().toStdString(), "", ss.str()));
        }
    }

    boost::shared_ptr<KnobChoice> pluginChoice = pluginSelectorKnob.lock();

    pluginChoice->populateChoices(entries);
    pluginChoice->blockValueChanges();
    pluginChoice->resetToDefaultValue(0);
    pluginChoice->unblockValueChanges();
    if (entries.size() <= 2) {
        pluginChoice->setSecret(true);
    } else {
        pluginChoice->setSecret(false);
    }

    boost::shared_ptr<KnobString> pluginIDKnob = pluginIDStringKnob.lock();
    pluginIDKnob->blockValueChanges();
    pluginIDKnob->setValue(pluginID);
    pluginIDKnob->unblockValueChanges();
}

bool
WriteNode::isWriter() const