Method getSelectedLayer

Engine/Node.cpp:5323–5379

}

bool
Node::getSelectedLayer(int inputNb,
                       const std::list<ImagePlaneDesc>& availableLayers,
                       std::bitset<4> *processChannels,
                       bool* isAll,
                       ImagePlaneDesc* layer) const
{
    // If there's a mask channel selector, fetch the mask layer
    int chanIndex = getMaskChannel(inputNb, availableLayers, layer);
    if (chanIndex != -1) {
        *isAll = false;
        Q_UNUSED(chanIndex);
        if (processChannels) {
            (*processChannels)[0] = true;
            (*processChannels)[1] = true;
            (*processChannels)[2] = true;
            (*processChannels)[3] = true;
        }

        return true;
    }


    std::map<int, ChannelSelector>::const_iterator foundSelector = _imp->channelsSelectors.find(inputNb);

    if ( foundSelector == _imp->channelsSelectors.end() ) {
        // Fetch in input what the user has set for the output
        foundSelector = _imp->channelsSelectors.find(-1);
    }


    // Check if the checkbox "All layers" is checked or not
    KnobBoolPtr processAllKnob = _imp->processAllLayersKnob.lock();
    *isAll = false;
    if (processAllKnob) {
        *isAll = processAllKnob->getValue();
    }

    if (!*isAll && foundSelector != _imp->channelsSelectors.end()) {
        *layer = _imp->getSelectedLayerInternal(inputNb, availableLayers, foundSelector->second);
    }

    if (processChannels) {
        if (_imp->hostChannelSelectorEnabled &&  _imp->enabledChan[0].lock() ) {
            (*processChannels)[0] = _imp->enabledChan[0].lock()->getValue();
            (*processChannels)[1] = _imp->enabledChan[1].lock()->getValue();
            (*processChannels)[2] = _imp->enabledChan[2].lock()->getValue();
            (*processChannels)[3] = _imp->enabledChan[3].lock()->getValue();
        } else {
            (*processChannels)[0] = true;
            (*processChannels)[1] = true;
            (*processChannels)[2] = true;
            (*processChannels)[3] = true;
        }
    }
    return foundSelector != _imp->channelsSelectors.end();
}