Method buildTreeInternal

Gui/NodeGraphUndoRedo.cpp:784–921

typedef std::list<TreePtr> TreePtrList;

void
Tree::buildTreeInternal(const NodesGuiList& selectedNodes,
                        NodeGui* currentNode,
                        const QPointF & currentNodeScenePos,
                        std::list<NodeGui*> & usedNodes)
{
    QSize nodeSize = currentNode->getSize();
    NodePtr internalNode = currentNode->getNode();
    const std::vector<Edge*> & inputs = currentNode->getInputsArrows();
    NodeGuiPtr firstNonMaskInput;
    NodesGuiList otherNonMaskInputs;
    NodesGuiList maskInputs;

    for (U32 i = 0; i < inputs.size(); ++i) {
        NodeGuiPtr source = inputs[i]->getSource();

        ///Check if the source is selected
        NodesGuiList::const_iterator foundSelected = std::find(selectedNodes.begin(), selectedNodes.end(), source);
        if ( foundSelected == selectedNodes.end() ) {
            continue;
        }

        if (source) {
            bool isMask = internalNode->getEffectInstance()->isInputMask(i);
            if (!firstNonMaskInput && !isMask) {
                firstNonMaskInput = source;
                for (std::list<TreeNode>::iterator it2 = nodes.begin(); it2 != nodes.end(); ++it2) {
                    if (it2->first == firstNonMaskInput) {
                        firstNonMaskInput.reset();
                        break;
                    }
                }
            } else if (!isMask) {
                bool found = false;
                for (std::list<TreeNode>::iterator it2 = nodes.begin(); it2 != nodes.end(); ++it2) {
                    if (it2->first == source) {
                        found = true;
                        break;
                    }
                }
                if (!found) {
                    otherNonMaskInputs.push_back(source);
                }
            } else if (isMask) {
                bool found = false;
                for (std::list<TreeNode>::iterator it2 = nodes.begin(); it2 != nodes.end(); ++it2) {
                    if (it2->first == source) {
                        found = true;
                        break;
                    }
                }
                if (!found) {
                    maskInputs.push_back(source);
                }
            } else {
                ///this can't be happening
                assert(false);
            }