2 grob.hh -- declare Grob
4 source file of the LilyPond music typesetter
6 (c) 1996--2005 Han-Wen Nienhuys
12 #include "virtual-methods.hh"
13 #include "dimension-cache.hh"
14 #include "grob-interface.hh"
15 #include "object-key.hh"
18 for administration of what was done already
22 ORPHAN = 0, // not yet added to Paper_score
24 PRECALCED, // calcs before spacing done
25 POSTCALCING, // busy calculating. This is used to trap cyclic deps.
26 POSTCALCED, // after spacing calcs done
29 typedef void (Grob:: *Grob_method_pointer) (void);
31 // looking at gtk+/pango docstrings .. WIP
35 * @internal_get_property: get property #NAME.
37 * Class structure for #Grob.
42 DECLARE_SMOBS (Grob, foo);
45 Object_key const *key_;
46 SCM immutable_property_alist_;
47 SCM mutable_property_alist_;
51 friend SCM ly_grob_properties (SCM);
52 friend SCM ly_grob_basic_properties (SCM);
54 void substitute_mutable_properties (SCM, SCM);
58 Object_key const *get_key () const;
62 /* TODO: junk this member. */
65 Dimension_cache dim_cache_[NO_AXES];
67 Grob (SCM basic_props, Object_key const *);
68 Grob (Grob const &, int copy_count);
70 virtual Grob *clone (int count) const;
71 DECLARE_SCHEME_CALLBACK (stencil_extent, (SCM smob, SCM axis));
77 SCM internal_get_property (SCM) const;
78 void internal_set_property (SCM, SCM val);
79 void add_to_list_property (SCM, SCM);
81 SCM get_property_alist_chain (SCM) const;
82 static SCM ly_grob_set_property (SCM, SCM, SCM);
83 static SCM ly_grob_property (SCM, SCM);
85 void warning (String) const;
86 void programming_error (String) const;
88 Output_def *get_layout () const;
89 void add_dependency (Grob *);
90 virtual System *get_system () const;
92 void calculate_dependencies (int final, int busy, SCM funcname);
94 virtual void do_break_processing ();
95 virtual Grob *find_broken_piece (System *) const;
96 virtual void discretionary_processing ();
97 virtual SCM do_derived_mark () const;
99 Stencil *get_stencil () const;
100 SCM get_uncached_stencil () const;
103 bool is_live () const;
104 bool is_empty (Axis a) const;
106 bool internal_has_interface (SCM intf);
107 static bool has_interface (Grob *me);
109 virtual void handle_broken_dependencies ();
110 virtual void handle_prebroken_dependencies ();
112 Interval extent (Grob *refpoint, Axis) const;
114 void translate_axis (Real, Axis);
115 Real relative_coordinate (Grob const *refp, Axis) const;
116 Grob *common_refpoint (Grob const *s, Axis a) const;
118 // duh. slim down interface here. (todo)
119 bool has_offset_callback (SCM callback, Axis) const;
120 void add_offset_callback (SCM callback, Axis);
121 bool has_extent_callback (SCM, Axis) const;
122 void flush_extent_cache (Axis);
123 void set_extent (SCM, Axis);
124 void set_extent_callback (SCM, Axis);
125 Real get_offset (Axis a) const;
127 void set_parent (Grob *e, Axis);
130 Grob *get_parent (Axis a) const;
131 DECLARE_SCHEME_CALLBACK (fixup_refpoint, (SCM));
134 DECLARE_UNSMOB (Grob, grob);
135 Spanner *unsmob_spanner (SCM);
136 Item *unsmob_item (SCM);
138 Grob *common_refpoint_of_list (SCM elt_list, Grob *, Axis a);
139 Grob *common_refpoint_of_array (Link_array<Grob> const &, Grob *, Axis a);
141 void set_break_subsititution (SCM criterion);
142 SCM substitute_mutable_property_alist (SCM alist);
144 Link_array<Grob> ly_scm2grobs (SCM ell);
145 SCM ly_grobs2scm (Link_array<Grob> a);
147 Interval robust_relative_extent (Grob *, Grob *, Axis);