2 grob.hh -- declare Grob
4 source file of the LilyPond music typesetter
6 (c) 1996--2004 Han-Wen Nienhuys
13 #include "virtual-methods.hh"
14 #include "lily-guile.hh"
15 #include "lily-proto.hh"
17 #include "dimension-cache.hh"
18 #include "grob-interface.hh"
19 #include "object-key.hh"
22 for administration of what was done already
25 ORPHAN=0, // not yet added to Paper_score
27 PRECALCED, // calcs before spacing done
28 POSTCALCING, // busy calculating. This is used to trap cyclic deps.
29 POSTCALCED, // after spacing calcs done
32 typedef void (Grob::*Grob_method_pointer) (void);
34 // looking at gtk+/pango docstrings .. WIP
38 * @internal_get_property: get property #NAME.
40 * Class structure for #Grob.
45 DECLARE_SMOBS (Grob, foo);
48 Object_key const * key_;
49 SCM immutable_property_alist_;
50 SCM mutable_property_alist_;
54 friend SCM ly_grob_properties (SCM);
55 friend SCM ly_grob_basic_properties (SCM);
57 void substitute_mutable_properties (SCM, SCM);
61 Object_key const *get_key () const;
65 /* TODO: junk this member. */
68 Dimension_cache dim_cache_[NO_AXES];
70 Grob (SCM basic_props, Object_key const *);
71 Grob (Grob const&, int copy_count);
73 virtual Grob *clone (int count) const;
74 DECLARE_SCHEME_CALLBACK (stencil_extent, (SCM smob, SCM axis));
82 SCM internal_get_property (SCM) const;
83 void internal_set_property (SCM, SCM val);
84 void add_to_list_property (SCM, SCM);
86 SCM get_property_alist_chain (SCM) const;
87 static SCM ly_grob_set_property (SCM, SCM,SCM);
88 static SCM ly_grob_property (SCM, SCM);
90 void warning (String) const;
91 void programming_error (String) const;
93 Output_def *get_layout () const;
94 void add_dependency (Grob*);
95 virtual System *get_system () const;
97 void calculate_dependencies (int final, int busy, SCM funcname);
100 virtual void do_break_processing ();
101 virtual Grob *find_broken_piece (System*) const;
102 virtual void discretionary_processing ();
103 virtual SCM do_derived_mark () const;
105 Stencil *get_stencil () const;
106 SCM get_uncached_stencil () const;
109 bool is_live () const;
110 bool is_empty (Axis a) const;
112 bool internal_has_interface (SCM intf);
113 static bool has_interface (Grob *me);
115 virtual void handle_broken_dependencies ();
116 virtual void handle_prebroken_dependencies ();
118 Interval extent (Grob * refpoint, Axis) const;
120 void translate_axis (Real, Axis);
121 Real relative_coordinate (Grob const *refp, Axis) const;
122 Grob *common_refpoint (Grob const *s, Axis a) const;
124 // duh. slim down interface here. (todo)
125 bool has_offset_callback (SCM callback, Axis) const;
126 void add_offset_callback (SCM callback, Axis);
127 bool has_extent_callback (SCM, Axis) const;
128 void set_extent (SCM, Axis);
129 Real get_offset (Axis a) const;
131 void set_parent (Grob* e, Axis);
134 Grob *get_parent (Axis a) const
136 return dim_cache_[a].parent_;
139 DECLARE_SCHEME_CALLBACK (fixup_refpoint, (SCM));
142 DECLARE_UNSMOB (Grob, grob);
143 Spanner *unsmob_spanner (SCM);
144 Item *unsmob_item (SCM);
146 Grob *common_refpoint_of_list (SCM elt_list, Grob *, Axis a);
147 Grob *common_refpoint_of_array (Link_array<Grob> const&, Grob *, Axis a);
149 void set_break_subsititution (SCM criterion);
150 SCM substitute_mutable_property_alist (SCM alist);
152 Link_array<Grob> ly_scm2grobs (SCM ell);
153 SCM ly_grobs2scm (Link_array<Grob> a);
155 Interval robust_relative_extent (Grob*, Grob*, Axis);