Method _expose

crawl-ref/source/ui.cc:244–250

}

void OverlayWidget::_expose()
{
    // forcibly ensure that renders will be called. This sidesteps the region
    // based code for deciding whether anything should be rendered, and leaves
    // it up to the OverlayWidget.
    ui_root.needs_paint = true;
}

shared_ptr<Widget> ContainerVec::get_child_at_offset(int x, int y)
{