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"
17 typedef void (Grob:: *Grob_method_pointer) (void);
22 DECLARE_SMOBS (Grob, foo);
26 Object_key const *key_;
27 SCM immutable_property_alist_;
28 SCM mutable_property_alist_;
32 If this is a property, it accounts for 25% of the property
39 friend SCM ly_grob_properties (SCM);
40 friend SCM ly_grob_basic_properties (SCM);
41 void substitute_object_links (SCM, SCM);
43 DECLARE_CLASSNAME(Grob);
44 Real get_offset (Axis a) const;
47 Dimension_cache dim_cache_[NO_AXES];
50 SCM try_callback (SCM, SCM);
52 DECLARE_SCHEME_CALLBACK(x_parent_positioning, (SCM));
53 DECLARE_SCHEME_CALLBACK(y_parent_positioning, (SCM));
54 DECLARE_SCHEME_CALLBACK (stencil_height, (SCM smob));
55 DECLARE_SCHEME_CALLBACK (stencil_width, (SCM smob));
58 Output_def *layout () const { return layout_; }
59 Grob *original () const { return original_; }
60 SCM interfaces () const { return interfaces_; }
61 Object_key const *key () const { return key_; }
64 Grob (SCM basic_props, Object_key const *);
65 Grob (Grob const &, int copy_count);
66 virtual Grob *clone (int count) const;
70 bool is_live () const;
76 SCM get_property_alist_chain (SCM) const;
77 SCM internal_get_property (SCM symbol) const;
78 SCM get_property_data (SCM symbol) const;
79 SCM internal_get_object (SCM symbol) const;
80 void del_property (SCM symbol);
81 void internal_set_property (SCM sym, SCM val);
82 void internal_set_object (SCM sym, SCM val);
85 void warning (String) const;
86 void programming_error (String) const;
90 virtual System *get_system () const;
91 virtual void do_break_processing ();
92 virtual Grob *find_broken_piece (System *) const;
93 virtual void discretionary_processing ();
94 virtual void derived_mark () const;
95 virtual void handle_broken_dependencies ();
96 virtual void handle_prebroken_dependencies ();
99 Stencil *get_stencil () const;
100 Stencil get_print_stencil () const;
103 bool internal_has_interface (SCM intf);
104 static bool has_interface (Grob *me);
107 void translate_axis (Real, Axis);
108 Real relative_coordinate (Grob const *refp, Axis) const;
111 Interval extent (Grob *refpoint, Axis) const;
112 void flush_extent_cache (Axis);
115 Grob *common_refpoint (Grob const *s, Axis a) const;
116 void set_parent (Grob *e, Axis);
117 Grob *get_parent (Axis a) const;
118 void fixup_refpoint ();
121 DECLARE_UNSMOB (Grob, grob);
122 Spanner *unsmob_spanner (SCM);
123 Item *unsmob_item (SCM);
126 Grob *common_refpoint_of_list (SCM elt_list, Grob *, Axis a);
127 Grob *common_refpoint_of_array (Link_array<Grob> const &, Grob *, Axis a);
128 System *get_root_system (Grob *me);
131 Interval robust_relative_extent (Grob *, Grob *, Axis);
133 /* offset/extent callbacks. */
134 void add_offset_callback (Grob *g, SCM proc, Axis a);
135 void chain_offset_callback (Grob *g, SCM proc, Axis a);
136 SCM axis_offset_symbol (Axis a);
137 SCM axis_parent_positioning (Axis a);