2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1996--2011 Han-Wen Nienhuys
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
24 #include "virtual-methods.hh"
25 #include "dimension-cache.hh"
26 #include "grob-interface.hh"
32 DECLARE_CLASSNAME(Grob);
38 Dimension_cache dim_cache_[NO_AXES];
43 SCM immutable_property_alist_;
44 SCM mutable_property_alist_;
48 If this is a property, it accounts for 25% of the property
53 void substitute_object_links (SCM, SCM);
54 Real get_offset (Axis a) const;
55 SCM try_callback (SCM, SCM);
56 SCM try_callback_on_alist (SCM *, SCM, SCM);
57 void internal_set_value_on_alist (SCM *alist, SCM sym, SCM val);
64 friend SCM ly_grob_properties (SCM);
65 friend SCM ly_grob_basic_properties (SCM);
67 /* standard callbacks */
68 DECLARE_SCHEME_CALLBACK (x_parent_positioning, (SCM));
69 DECLARE_SCHEME_CALLBACK (y_parent_positioning, (SCM));
70 DECLARE_SCHEME_CALLBACK (stencil_height, (SCM smob));
71 DECLARE_SCHEME_CALLBACK (stencil_width, (SCM smob));
74 Output_def *layout () const { return layout_; }
75 Grob *original () const { return original_; }
76 SCM interfaces () const { return interfaces_; }
79 Grob (SCM basic_props);
81 virtual Grob *clone () const;
85 bool is_live () const;
91 SCM get_property_alist_chain (SCM) const;
92 SCM internal_get_property (SCM symbol) const;
93 SCM internal_get_property_data (SCM symbol) const;
94 SCM internal_get_pure_property (SCM symbol, int start, int end) const;
95 SCM internal_get_maybe_pure_property (SCM symbol, bool pure, int start, int end) const;
96 SCM internal_get_non_callback_marker_property_data (SCM symbol) const;
97 SCM internal_get_object (SCM symbol) const;
98 void internal_set_object (SCM sym, SCM val);
99 void internal_del_property (SCM symbol);
100 void instrumented_set_property (SCM, SCM, char const*, int, char const*);
101 void internal_set_property (SCM sym, SCM val);
104 void warning (string) const;
105 void programming_error (string) const;
108 /* class hierarchy */
109 virtual System *get_system () const;
110 static System *get_system (Grob *);
111 virtual void do_break_processing ();
112 virtual Grob *find_broken_piece (System *) const;
113 virtual void discretionary_processing ();
114 virtual void derived_mark () const;
115 virtual void handle_broken_dependencies ();
116 virtual void handle_prebroken_dependencies ();
119 Stencil *get_stencil () const;
120 Stencil get_print_stencil () const;
123 bool internal_has_interface (SCM intf);
124 DECLARE_GROB_INTERFACE();
127 void translate_axis (Real, Axis);
128 Real relative_coordinate (Grob const *refp, Axis) const;
129 Real pure_relative_y_coordinate (Grob const *refp, int start, int end);
130 Real maybe_pure_coordinate (Grob const *refp, Axis a, bool pure, int start, int end);
133 Interval extent (Grob *refpoint, Axis) const;
134 void flush_extent_cache (Axis);
135 virtual Interval pure_height (Grob *refpoint, int start_col, int end_col);
136 Interval maybe_pure_extent (Grob *refpoint, Axis, bool pure, int start, int end);
139 Grob *common_refpoint (Grob const *s, Axis a) const;
140 void set_parent (Grob *e, Axis);
141 Grob *get_parent (Axis a) const;
142 void fixup_refpoint ();
144 virtual Interval_t<int> spanned_rank_interval () const;
145 virtual bool pure_is_visible (int start, int end) const;
146 bool check_cross_staff (Grob *common);
147 static bool less (Grob *g1, Grob *g2);
151 DECLARE_UNSMOB (Grob, grob);
152 Spanner *unsmob_spanner (SCM);
153 Item *unsmob_item (SCM);
156 Grob *common_refpoint_of_list (SCM elt_list, Grob *, Axis a);
157 Grob *common_refpoint_of_array (vector<Grob*> const &, Grob *, Axis a);
158 System *get_root_system (Grob *me);
161 Interval robust_relative_extent (Grob *, Grob *, Axis);
163 /* offset/extent callbacks. */
164 void add_offset_callback (Grob *g, SCM proc, Axis a);
165 void chain_offset_callback (Grob *g, SCM proc, Axis a);
166 void chain_callback (Grob *g, SCM proc, SCM sym);
167 SCM axis_offset_symbol (Axis a);
168 SCM axis_parent_positioning (Axis a);
170 SCM call_pure_function (SCM unpure, SCM args, int start, int end);
172 void set_nested_property (Grob *, SCM property_path, SCM value);