/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 2005--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
LilyPond is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "smobs.hh"
#include "std-vector.hh"
-class Grob_array
+class Grob_array : public Simple_smob<Grob_array>
{
+public:
+ int print_smob (SCM, scm_print_state *) const;
+ SCM mark_smob () const;
+ static const char type_p_name_[];
+private:
vector<Grob *> grobs_;
bool ordered_;
- DECLARE_SIMPLE_SMOBS (Grob_array);
Grob_array ();
public:
void set_ordered (bool b) { ordered_ = b; }
Item *item (vsize i);
Spanner *spanner (vsize i);
- Grob *grob (vsize i) { return grobs_.at (i); }
+ Grob *grob (vsize i) const { return grobs_.at (i); }
vsize size () const { return grobs_.size (); }
- bool empty () const;
+ bool empty () const { return grobs_.empty (); }
void remove_duplicates ();
- void clear ();
+ void clear () { grobs_.clear (); }
void add (Grob *x) { grobs_.push_back (x); }
- void set_array (vector<Grob *> const &src);
- vector<Grob *> &array_reference ();
- vector<Grob *> const &array () const;
+ void set_array (vector<Grob *> const &src) { grobs_ = src; }
+ vector<Grob *> &array_reference () { return grobs_; }
+ vector<Grob *> const &array () const { return grobs_; }
static SCM make_array ();
+
+ // Remove grobs that do not satisfy the predicate, leaving the order
+ // unchanged.
+ void filter (bool (*predicate) (const Grob *));
+
+ // Run a function on all grobs in this array. If the function returns null,
+ // remove the original grob, reducing the size of the array. If the function
+ // returns a Grob, replace the original grob with the returned Grob.
+ void filter_map (Grob * (*map_fun) (Grob *));
+
+ // Like src.filter_map (f), but store the result in this array instead of
+ // mutating the input.
+ void filter_map_assign (const Grob_array &src, Grob * (*map_fun) (Grob *));
};
-DECLARE_UNSMOB (Grob_array, grob_array);
vector<Grob *> const &ly_scm2link_array (SCM x);
SCM grob_list_to_grob_array (SCM lst);
SCM grob_array_to_list (Grob_array *array);
#endif /* GROB_ARRAY_HH */
-