Support directionality for zones

[r2c2.git] / source / libr2c2 / zone.h

diff --git a/source/libr2c2/zone.h b/source/libr2c2/zone.h
index 9688c3419540bcf17173bcfbd49d853875f426ff..fc44d4f205de91ad88bc3b7458310f2a39287996 100644 (file)
--- a/source/libr2c2/zone.h
+++ b/source/libr2c2/zone.h
@@ -21,12 +21,14 @@ public:
        private:
                virtual void finish();
                void block(unsigned);
+               void direction_hint(unsigned, Direction);
        };
 
 private:
        std::string group;
        std::string qualifier;
        unsigned number;
+       int up_end;
 
 public:
        Zone(Layout &);
@@ -41,6 +43,15 @@ public:
        const std::string &get_qualifier() const { return qualifier; }
        unsigned get_number() const { return number; }
 
+       void set_direction_towards(Track &, Direction);
+       void clear_direction();
+       virtual TrackIter iter_for(Track &, Direction) const;
+private:
+       TrackIter next_iter(const TrackIter &) const;
+public:
+       using TrackChain::get_end;
+       TrackIter get_end(Direction) const;
+
        void save(std::list<Msp::DataFile::Statement> &) const;
        virtual Msp::DataFile::Statement save_reference() const;
 };