/*
- skyline.hh -- declare Skyline class.
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2006--2015 Joe Neeman <joeneeman@gmail.com>
- (c) 2006--2007 Joe Neeman <joeneeman@gmail.com>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SKYLINE_HH
#define SKYLINE_HH
-#include <list>
-
+#include "lily-proto.hh"
#include "axis.hh"
#include "box.hh"
#include "interval.hh"
#include "std-vector.hh"
#include "smobs.hh"
+#include <list>
+
struct Building
{
+ Real start_;
Real end_;
Real y_intercept_;
Real slope_;
void precompute (Real start, Real start_height, Real end_height, Real end);
Building (Real start, Real start_height, Real end_height, Real end);
- Building (Box const &b, Real horizon_padding, Axis a, Direction d);
+ Building (Box const &b, Axis a, Direction d);
void print () const;
Real height (Real x) const;
Real intersection_x (Building const &other) const;
- void leading_part (Real chop);
- bool conceals (Building const &other, Real x) const;
- Building sloped_neighbour (Real start, Real horizon_padding, Direction d) const;
+ bool above (Building const &other, Real x) const;
+ Real shift_to_intersect (Real x, Real y) const;
};
-class Skyline
+class Skyline : public Simple_smob<Skyline>
{
+public:
+ static const char * const type_p_name_;
private:
list<Building> buildings_;
Direction sky_;
-
- void internal_merge_skyline (list<Building>*, list<Building>*,
- list<Building> *const result);
- list<Building> internal_build_skyline (list<Box>*, Real, Axis, Direction);
- DECLARE_SIMPLE_SMOBS(Skyline);
+ void internal_merge_skyline (list<Building> *, list<Building> *,
+ list<Building> *result) const;
+ list<Building> internal_build_skyline (list<Building> *) const;
+ Real internal_distance (Skyline const &, Real horizon_padding, Real *touch_point) const;
+ Real internal_distance (Skyline const &, Real *touch_point) const;
+ void normalize ();
+
+
public:
Skyline ();
- Skyline (Skyline const &src);
Skyline (Direction sky);
- Skyline (vector<Box> const &bldgs, Real horizon_padding, Axis a, Direction sky);
- Skyline (Box const &b, Real horizon_padding, Axis a, Direction sky);
+ Skyline (vector<Box> const &bldgs, Axis a, Direction sky);
+ Skyline (vector<Drul_array<Offset> > const &bldgs, Axis a, Direction sky);
+ Skyline (vector<Skyline_pair> const &skypairs, Direction sky);
+ Skyline (Box const &b, Axis a, Direction sky);
+
vector<Offset> to_points (Axis) const;
void merge (Skyline const &);
- void insert (Box const &, Real horizon_padding, Axis);
+ void insert (Box const &, Axis);
void print () const;
+ void print_points () const;
void raise (Real);
void shift (Real);
- Real distance (Skyline const &) const;
+ Real distance (Skyline const &, Real horizon_padding = 0) const;
+ Real touching_point (Skyline const &, Real horizon_padding = 0) const;
+ Real shift_to_avoid (Skyline const &other, Real, Direction d, Real horizon_padding = 0);
+ Real raise_to_avoid (Skyline const &other, Real, Direction d, Real horizon_padding = 0);
+ Drul_array<Real> shifts_to_avoid_intersection (Skyline const &, Real horizon_padding = 0) const;
+ Interval raises_to_avoid_intersection (Skyline const &, Real horizon_padding = 0) const;
Real height (Real airplane) const;
Real max_height () const;
+ Real max_height_position () const;
+ Real left () const;
+ Real right () const;
+ Direction direction () const;
void set_minimum_height (Real height);
+ void clear ();
bool is_empty () const;
-};
+ Skyline padded (Real horizon_padding) const;
-class Skyline_pair
-{
-private:
- Drul_array<Skyline> skylines_;
-
- DECLARE_SIMPLE_SMOBS(Skyline_pair);
-public:
- Skyline_pair ();
- Skyline_pair (vector<Box> const &boxes, Real horizon_padding, Axis a);
- Skyline_pair (Box const &, Real horizon_padding, Axis a);
- void raise (Real);
- void shift (Real);
- void insert (Box const &, Real horizon_padding, Axis);
- void merge (Skyline_pair const &other);
- Skyline &operator [] (Direction d);
- Skyline const &operator [] (Direction d) const;
- bool is_empty () const;
+ DECLARE_SCHEME_CALLBACK (get_touching_point, (SCM, SCM, SCM));
+ DECLARE_SCHEME_CALLBACK (get_distance, (SCM, SCM, SCM));
+ DECLARE_SCHEME_CALLBACK (get_max_height, (SCM));
+ DECLARE_SCHEME_CALLBACK (get_max_height_position, (SCM));
+ DECLARE_SCHEME_CALLBACK (get_height, (SCM, SCM));
};
-#endif /* SKYLINE_HH */
+extern bool debug_skylines;
+#endif /* SKYLINE_HH */