void draw_annotation(const pv::data::decode::Annotation &a, QPainter &p,
int text_height, const ViewItemPaintParams &pp, int y,
size_t base_colour) const;
void draw_annotation(const pv::data::decode::Annotation &a, QPainter &p,
int text_height, const ViewItemPaintParams &pp, int y,
size_t base_colour) const;