Method OfxStringInstance

Engine/OfxParamInstance.cpp:3782–3862

};

OfxStringInstance::OfxStringInstance(const OfxEffectInstancePtr& node,
                                     OFX::Host::Param::Descriptor & descriptor)
    : OfxParamToKnob(node)
    , OFX::Host::Param::StringInstance( descriptor, node->effectInstance() )
    , _imp( new OfxStringInstancePrivate() )
{
    const OFX::Host::Property::Set &properties = getProperties();
    std::string mode = properties.getStringProperty(kOfxParamPropStringMode);
    bool richText = mode == kOfxParamStringIsRichTextFormat;

    if (mode == kOfxParamStringIsFilePath) {
        int fileIsImage = ( ( node->isReader() ||
                              node->isWriter() ) &&
                            (getScriptName() == kOfxImageEffectFileParamName ||
                             getScriptName() == kOfxImageEffectProxyParamName) );
        int fileIsOutput = !properties.getIntProperty(kOfxParamPropStringFilePathExists);
        int filePathSupportsImageSequences = getCanAnimate();


        if (!fileIsOutput) {
            _imp->fileKnob = checkIfKnobExistsWithNameOrCreate<KnobFile>(descriptor.getName(), this, 1);
            if (fileIsImage) {
                _imp->fileKnob.lock()->setAsInputImage();
            }
            if (!filePathSupportsImageSequences) {
                _imp->fileKnob.lock()->setAnimationEnabled(false);
            }
        } else {
            _imp->outputFileKnob = checkIfKnobExistsWithNameOrCreate<KnobOutputFile>(descriptor.getName(), this, 1);
            if (fileIsImage) {
                _imp->outputFileKnob.lock()->setAsOutputImageFile();
            } else {
                _imp->outputFileKnob.lock()->turnOffSequences();
            }
            if (!filePathSupportsImageSequences) {
                _imp->outputFileKnob.lock()->setAnimationEnabled(false);
            }
        }
    } else if (mode == kOfxParamStringIsDirectoryPath) {
        _imp->pathKnob = checkIfKnobExistsWithNameOrCreate<KnobPath>(descriptor.getName(), this, 1);
        _imp->pathKnob.lock()->setMultiPath(false);
    } else if ( (mode == kOfxParamStringIsSingleLine) || (mode == kOfxParamStringIsLabel) || (mode == kOfxParamStringIsMultiLine) || richText ) {
        _imp->stringKnob = checkIfKnobExistsWithNameOrCreate<KnobString>(descriptor.getName(), this, 1);
        if (mode == kOfxParamStringIsLabel) {
            _imp->stringKnob.lock()->setAllDimensionsEnabled(false);
            _imp->stringKnob.lock()->setAsLabel();
        }
        if ( (mode == kOfxParamStringIsMultiLine) || richText ) {
            ///only QTextArea support rich text anyway
            _imp->stringKnob.lock()->setUsesRichText(richText);
            _imp->stringKnob.lock()->setAsMultiLine();
        }
    }
    std::string defaultVal = properties.getStringProperty(kOfxParamPropDefault);
    if ( !defaultVal.empty() ) {
        if ( _imp->fileKnob.lock() ) {
            projectEnvVar_setProxy(defaultVal);
            KnobFilePtr k = _imp->fileKnob.lock();