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"
21 for administration of what was done already
24 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);
35 /* Basic G[raphical output] O[bject]. */
39 SCM immutable_property_alist_;
40 SCM mutable_property_alist_;
43 void substitute_mutable_properties(SCM,SCM);
49 Administration: Where are we?. This is mainly used by Super_element and
50 Grob::calcalute_dependencies ()
58 IDEA: make this a global variable. This is the same for all
59 elements, I think it is safe to assume that we will not have
60 scores being formatted multithreadedly.
63 Dimension_cache dim_cache_[NO_AXES];
65 Grob (SCM basic_props);
67 VIRTUAL_COPY_CONSTRUCTOR (Grob, Grob);
74 SCM internal_get_property (SCM) const;
75 void internal_set_property (SCM, SCM val);
76 void add_to_list_property (SCM, SCM);
77 void warning (String)const;
78 void programming_error (String)const;
80 void set_elt_pointer (const char*, SCM val);
81 friend class Property_engraver; // UGHUGHUGH.
85 Paper_def *get_paper () const;
88 add a dependency. It may be the 0 pointer, in which case, it is ignored.
90 void add_dependency (Grob*);
91 virtual System * get_system () const;
94 Recursively track all dependencies of this Grob. The
95 status_ field is used as a mark-field. It is marked with
96 #busy# during execution of this function, and marked with #final#
99 #funcptr# is the function to call to update this element.
101 void calculate_dependencies (int final, int busy, SCM funcname);
104 virtual void do_break_processing ();
105 virtual Grob *find_broken_piece (System*) const;
106 virtual void discretionary_processing ();
107 virtual SCM do_derived_mark () const;
109 Stencil * get_stencil () const;
110 SCM get_uncached_stencil () const;
112 SCM get_property_alist_chain (SCM) const;
116 DECLARE_SCHEME_CALLBACK (stencil_extent, (SCM smob, SCM axis));
118 static SCM ly_grob_set_property (SCM, SCM,SCM);
119 static SCM ly_grob_property (SCM, SCM);
121 bool internal_has_interface (SCM intf);
122 static bool has_interface (Grob*me);
124 virtual void handle_broken_dependencies ();
125 virtual void handle_prebroken_dependencies ();
127 DECLARE_SMOBS (Grob,foo);
131 bool is_empty (Axis a) const;
133 Interval extent (Grob * refpoint, Axis) const;
135 void translate_axis (Real, Axis);
136 Real relative_coordinate (Grob const* refp, Axis) const;
137 Grob*common_refpoint (Grob const* s, Axis a) const;
140 // duh. slim down interface here. (todo)
141 bool has_offset_callback (SCM callback, Axis)const;
142 void add_offset_callback (SCM callback, Axis);
143 bool has_extent_callback (SCM, Axis)const;
144 void set_extent (SCM , Axis);
145 Real get_offset (Axis a) const;
147 void set_parent (Grob* e, Axis);
149 Grob *get_parent (Axis a) const { return dim_cache_[a].parent_; }
150 DECLARE_SCHEME_CALLBACK (fixup_refpoint, (SCM));
153 DECLARE_UNSMOB(Grob,grob);
154 Spanner* unsmob_spanner (SCM );
155 Item* unsmob_item (SCM );
157 Grob*common_refpoint_of_list (SCM elt_list, Grob * , Axis a);
158 Grob*common_refpoint_of_array (Link_array<Grob> const&, Grob * , Axis a);
160 void set_break_subsititution (SCM criterion);
161 SCM substitute_mutable_property_alist (SCM alist);
163 Link_array<Grob> ly_scm2grobs (SCM l);
164 SCM ly_grobs2scm (Link_array<Grob> a);