int max_systems_per_page () const;
int min_systems_per_page () const;
Real page_height (int page_number, bool last) const;
+ Real paper_height () const;
vsize system_count () const;
Real line_count_penalty (int line_count) const;
int line_count_status (int line_count) const;
vector<Line_details> cached_line_details_;
vector<Line_details> uncompressed_line_details_;
+ Real paper_height_;
mutable vector<Real> page_height_cache_;
mutable vector<Real> last_page_height_cache_;