Method setOption

Engine/OfxParamInstance.cpp:1625–1677

}

void
OfxChoiceInstance::setOption(int num)
{
    DYNAMIC_PROPERTY_CHECK();

    /*
     This function can serve 3 type of behaviours depending on num:
     - 0: meaning resetOptions
     - num == nDim - 1: meaning appendOption
     - num == nDim: meaning setOptions
     */
    int dim = getProperties().getDimension(kOfxParamPropChoiceOption);
    KnobChoicePtr knob = _knob.lock();
    if (dim == 0) {
        knob->resetChoices();
        return;
    }

    assert(num == dim - 1 || num == dim);

    if ( num == (dim - 1) ) {
        ChoiceOption option;
        option.id = getProperties().getStringProperty(kOfxParamPropChoiceOption, num);
        option.label = option.id;
        int labelOptionDim = getProperties().getDimension(kOfxParamPropChoiceLabelOption);
        int optionIDDim = getProperties().getDimension(kOfxParamPropChoiceEnum);
        if (num < optionIDDim) {
            option.id = getProperties().getStringProperty(kOfxParamPropChoiceEnum, num);
        }
        if (num < labelOptionDim) {
            option.tooltip = getProperties().getStringProperty(kOfxParamPropChoiceLabelOption, num);
        }
        knob->appendChoice(option);
    } else if (num == dim) {

        int labelOptionDim = getProperties().getDimension(kOfxParamPropChoiceLabelOption);
        assert(labelOptionDim == 0 || labelOptionDim == dim);
        int optionIDDim = getProperties().getDimension(kOfxParamPropChoiceEnum);
        assert(optionIDDim == 0 || optionIDDim == dim);
        std::vector<ChoiceOption> entries(dim);
        for (std::size_t i = 0; i < entries.size(); ++i) {
            entries[i].id = getProperties().getStringProperty(kOfxParamPropChoiceOption, i);
            entries[i].label = entries[i].id;
            if ( (int)i < optionIDDim ) {
                entries[i].id = getProperties().getStringProperty(kOfxParamPropChoiceEnum, i);
            }
            if ( (int)i < labelOptionDim ) {
                entries[i].tooltip = getProperties().getStringProperty(kOfxParamPropChoiceLabelOption, i);
            }
        }
        knob->populateChoices(entries);
    }
}

KnobIPtr
OfxChoiceInstance::getKnob() const