2 Implement storage and manipulation of grob properties.
9 #include "input-smob.hh"
10 #include "pointer-group-interface.hh"
12 #include "paper-score.hh"
13 #include "output-def.hh"
18 #include "program-option.hh"
22 Grob::get_property_alist_chain (SCM def) const
24 return scm_list_n (mutable_property_alist_,
25 immutable_property_alist_,
31 This special add_thing routine is slightly more efficient than
33 set_prop (name, cons (thing, get_prop (name)))
35 since it can reuse the handle returned by scm_assq ().
39 Grob::add_to_list_property (SCM sym, SCM thing)
42 = scm_sloppy_assq (sym, mutable_property_alist_);
44 if (handle != SCM_BOOL_F)
45 scm_set_cdr_x (handle, scm_cons (thing, scm_cdr (handle)));
49 There is no mutable prop yet, so create an entry, and put it in front of the
52 handle = scm_sloppy_assq (sym, immutable_property_alist_);
53 SCM tail = (handle != SCM_BOOL_F) ? scm_cdr (handle) : SCM_EOL;
54 SCM val = scm_cons (thing, tail);
56 mutable_property_alist_ = scm_cons (scm_cons (sym, val),
57 mutable_property_alist_);
61 extern void check_interfaces_for_property (Grob const *me, SCM sym);
64 Grob::internal_set_property (SCM sym, SCM v)
67 SCM grob_p = ly_lily_module_constant ("ly:grob?");
68 SCM grob_list_p = ly_lily_module_constant ("grob-list?");
69 SCM type = scm_object_property (sym, ly_symbol2scm ("backend-type?"));
72 || type == grob_list_p
73 || (unsmob_grob (v) && ly_symbol2scm ("cause") != sym))
75 scm_display (scm_list_2 (sym, type), scm_current_output_port ());
80 /* Perhaps we simply do the assq_set, but what the heck. */
84 if (do_internal_type_checking_global)
86 if (!type_check_assignment (sym, v, ly_symbol2scm ("backend-type?")))
88 check_interfaces_for_property (this, sym);
91 mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, sym, v);
94 //#define PROFILE_PROPERTY_ACCESSES
98 Grob::internal_get_property (SCM sym) const
101 if (profile_property_accesses)
102 note_property_access (&grob_property_lookup_table, sym);
105 SCM s = scm_sloppy_assq (sym, mutable_property_alist_);
109 s = scm_sloppy_assq (sym, immutable_property_alist_);
111 if (do_internal_type_checking_global && scm_is_pair (s))
113 if (!type_check_assignment (sym, scm_cdr (s),
114 ly_symbol2scm ("backend-type?")))
117 check_interfaces_for_property (this, sym);
120 return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
124 Grob::internal_set_object (SCM s, SCM v)
126 /* Perhaps we simply do the assq_set, but what the heck. */
130 object_alist_ = scm_assq_set_x (object_alist_, s, v);
134 Grob::internal_get_object (SCM sym) const
136 #ifdef PROFILE_PROPERTY_ACCESSES
137 note_property_access (&grob_property_lookup_table, sym);
140 SCM s = scm_sloppy_assq (sym, object_alist_);
142 return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
146 Grob::substitute_object_links (SCM crit, SCM orig)
148 set_break_subsititution (crit);
149 object_alist_ = substitute_object_alist (orig, object_alist_);
153 Grob::is_live () const
155 return immutable_property_alist_ != SCM_EOL;