Method newParam

Engine/OfxImageEffectInstance.cpp:480–729

make a parameter instance

// make a parameter instance
OFX::Host::Param::Instance *
OfxImageEffectInstance::newParam(const std::string &paramName,
                                 OFX::Host::Param::Descriptor &descriptor)
{
    // note: the order for parameter types is the same as in ofxParam.h
    OFX::Host::Param::Instance* instance = NULL;
    KnobPtr knob;
    bool paramShouldBePersistent = true;
    bool secretByDefault = descriptor.getSecret();
    bool enabledByDefault = descriptor.getEnabled();

    std::string paramType = descriptor.getType();
    bool isToggableButton = false;
    if (paramType == kOfxParamTypeBoolean) {
        isToggableButton = (bool)descriptor.getProperties().getIntProperty(kNatronOfxBooleanParamPropIsToggableButton);
        if (isToggableButton) {
            paramType = kOfxParamTypePushButton;
        }
    }

    if (paramType == kOfxParamTypeInteger) {
        OfxIntegerInstance *ret = new OfxIntegerInstance(getOfxEffectInstance(), descriptor);
        knob = ret->getKnob();
        instance = ret;
    } else if (paramType == kOfxParamTypeDouble) {
        OfxDoubleInstance  *ret = new OfxDoubleInstance(getOfxEffectInstance(), descriptor);
        knob = ret->getKnob();
        instance = ret;
    } else if (paramType == kOfxParamTypeBoolean) {
        OfxBooleanInstance *ret = new OfxBooleanInstance(getOfxEffectInstance(), descriptor);
        knob = ret->getKnob();
        instance = ret;
    } else if (paramType == kOfxParamTypeChoice) {
        OfxChoiceInstance *ret = new OfxChoiceInstance(getOfxEffectInstance(), descriptor);
        knob = ret->getKnob();
        instance = ret;
    } else if (paramType == kOfxParamTypeRGBA) {
        OfxRGBAInstance *ret = new OfxRGBAInstance(getOfxEffectInstance(), descriptor);
        knob = ret->getKnob();
        instance = ret;
    } else if (paramType == kOfxParamTypeRGB) {
        OfxRGBInstance *ret = new OfxRGBInstance(getOfxEffectInstance(), descriptor);
        knob = ret->getKnob();
        instance = ret;
    } else if (paramType == kOfxParamTypeDouble2D) {
        OfxDouble2DInstance *ret = new OfxDouble2DInstance(getOfxEffectInstance(), descriptor);
        knob = ret->getKnob();
        instance = ret;
    } else if (paramType == kOfxParamTypeInteger2D) {
        OfxInteger2DInstance *ret = new OfxInteger2DInstance(getOfxEffectInstance(), descriptor);
        knob = ret->getKnob();
        instance = ret;
    } else if (paramType == kOfxParamTypeDouble3D) {
        OfxDouble3DInstance *ret = new OfxDouble3DInstance(getOfxEffectInstance(), descriptor);
        knob = ret->getKnob();
        instance = ret;
    } else if (paramType == kOfxParamTypeInteger3D) {
        OfxInteger3DInstance *ret = new OfxInteger3DInstance(getOfxEffectInstance(), descriptor);