Method selectArea

radiantcore/selection/RadiantSelectionSystem.cpp:731–791

}

void RadiantSelectionSystem::selectArea(SelectionTest& test, SelectionSystem::EModifier modifier, bool face)
{
    // If we are in replace mode, deselect all the components or previous selections
    if (modifier == SelectionSystem::eReplace)
    {
        if (face)
        {
            setSelectedAllComponents(false);
        }
        else
        {
            deselectAll();
        }
    }

    // The posssible candidates go here
    SelectionPool pool;

    SelectablesList candidates;

    if (face)
    {
        ComponentSelector tester(pool, test, ComponentSelectionMode::Face);
        GlobalSceneGraph().foreachVisibleNodeInVolume(test.getVolume(), [&](const scene::INodePtr& node)
        {
            if (nodeCanBeSelectionTested(node))
            {
                tester.testNode(node);
            }
            return true;
        });

        // Load them all into the vector
        for (auto i = pool.begin(); i != pool.end(); ++i)
        {
            candidates.push_back(i->second);
        }
    }
    else
    {
        testSelectScene(candidates, test, test.getVolume(), getSelectionMode());
    }

    // Since toggling a selectable might trigger a group-selection
    // we need to keep track of the desired state of each selectable
    typedef std::map<ISelectable*, bool> SelectablesMap;
    SelectablesMap selectableStates;

    for (ISelectable* selectable : candidates)
    {
        bool desiredState = !(modifier == SelectionSystem::eToggle && selectable->isSelected());
        selectableStates.insert(SelectablesMap::value_type(selectable, desiredState));
    }

    for (const auto& state : selectableStates)
    {
        setSelectionStatus(state.first, state.second);
    }