Method cloneSelectedNodes

Gui/NodeGraph40.cpp:232–338

}

void
NodeGraph::cloneSelectedNodes(const QPointF& scenePos)
{
    if ( _imp->_selection.empty() ) {
        Dialogs::warningDialog( tr("Clone").toStdString(), tr("You must select at least a node to clone first.").toStdString() );

        return;
    }

    double xmax = std::numeric_limits<int>::min();
    double xmin = std::numeric_limits<int>::max();
    double ymin = std::numeric_limits<int>::max();
    double ymax = std::numeric_limits<int>::min();
    NodesGuiList nodesToCopy = _imp->_selection;
    for (NodesGuiList::iterator it = _imp->_selection.begin(); it != _imp->_selection.end(); ++it) {
        if ( (*it)->getNode()->getMasterNode() ) {
            Dialogs::errorDialog( tr("Clone").toStdString(), tr("You cannot clone a node which is already a clone.").toStdString() );

            return;
        }
        QRectF bbox = (*it)->mapToScene( (*it)->boundingRect() ).boundingRect();
        if ( ( bbox.x() + bbox.width() ) > xmax ) {
            xmax = ( bbox.x() + bbox.width() );
        }
        if (bbox.x() < xmin) {
            xmin = bbox.x();
        }

        if ( ( bbox.y() + bbox.height() ) > ymax ) {
            ymax = ( bbox.y() + bbox.height() );
        }
        if (bbox.y() < ymin) {
            ymin = bbox.y();
        }

        ///Also copy all nodes within the backdrop
        BackdropGui* isBd = dynamic_cast<BackdropGui*>( it->get() );
        if (isBd) {
            NodesGuiList nodesWithinBD = getNodesWithinBackdrop(*it);
            for (NodesGuiList::iterator it2 = nodesWithinBD.begin(); it2 != nodesWithinBD.end(); ++it2) {
                NodesGuiList::iterator found = std::find(nodesToCopy.begin(), nodesToCopy.end(), *it2);
                if ( found == nodesToCopy.end() ) {
                    nodesToCopy.push_back(*it2);
                }
            }
        }
    }

    for (NodesGuiList::iterator it = nodesToCopy.begin(); it != nodesToCopy.end(); ++it) {
        if ( (*it)->getNode()->getEffectInstance()->isSlave() ) {
            Dialogs::errorDialog( tr("Clone").toStdString(), tr("You cannot clone a node which is already a clone.").toStdString() );

            return;
        }
        ViewerInstance* isViewer = (*it)->getNode()->isEffectViewer();
        if (isViewer) {
            Dialogs::errorDialog( tr("Clone").toStdString(), tr("Cloning a viewer is not a valid operation.").toStdString() );