Function get_visible_child

library/modules/Gui.cpp:286–295

}

static df::widget * get_visible_child(df::widget *parent) {
    df::widget_container *container = virtual_cast<df::widget_container>(parent);
    if (!container)
        return NULL;
    for (auto child : container->children) {
        if (widget_is_visible(child.get()))
            return child.get();
    }
    return NULL;
}

static df::widget_container * get_visible_child_container(df::widget *parent) {
    df::widget_container *container = virtual_cast<df::widget_container>(parent);