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)
46 scm_set_cdr_x (handle, scm_cons (thing, scm_cdr (handle)));
51 There is no mutable prop yet, so create an entry, and put it in front of the
54 handle = scm_sloppy_assq (sym, immutable_property_alist_);
55 SCM tail = (handle != SCM_BOOL_F) ? scm_cdr (handle) : SCM_EOL;
56 SCM val = scm_cons (thing, tail);
58 mutable_property_alist_ = scm_cons (scm_cons (sym, val),
59 mutable_property_alist_);
65 extern void check_interfaces_for_property (Grob const *me, SCM sym);
68 Grob::internal_set_property (SCM sym, SCM v)
71 SCM grob_p = ly_lily_module_constant ("ly:grob?");
72 SCM grob_list_p = ly_lily_module_constant ("grob-list?");
73 SCM type = scm_object_property (sym, ly_symbol2scm ("backend-type?"));
76 || type == grob_list_p
77 || (unsmob_grob (v) && ly_symbol2scm ("cause") != sym))
79 scm_display (scm_list_2 (sym, type), scm_current_output_port());
84 /* Perhaps we simply do the assq_set, but what the heck. */
88 if (do_internal_type_checking_global)
90 if (!type_check_assignment (sym, v, ly_symbol2scm ("backend-type?")))
92 check_interfaces_for_property (this, sym);
95 mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, sym, v);
98 //#define PROFILE_PROPERTY_ACCESSES
104 Grob::internal_get_property (SCM sym) const
107 if (profile_property_accesses)
109 note_property_access (&grob_property_lookup_table, sym);
113 SCM s = scm_sloppy_assq (sym, mutable_property_alist_);
117 s = scm_sloppy_assq (sym, immutable_property_alist_);
119 if (do_internal_type_checking_global && scm_is_pair (s))
121 if (!type_check_assignment (sym, scm_cdr (s),
122 ly_symbol2scm ("backend-type?")))
125 check_interfaces_for_property (this, sym);
128 return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
134 Grob::internal_set_object (SCM s, SCM v)
136 /* Perhaps we simply do the assq_set, but what the heck. */
140 object_alist_ = scm_assq_set_x (object_alist_, s, v);
144 Grob::internal_get_object (SCM sym) const
146 #ifdef PROFILE_PROPERTY_ACCESSES
147 note_property_access (&grob_property_lookup_table, sym);
150 SCM s = scm_sloppy_assq (sym, object_alist_);
152 return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
156 Grob::substitute_object_links (SCM crit, SCM orig)
158 set_break_subsititution (crit);
159 object_alist_ = substitute_object_alist (orig, object_alist_);
163 Grob::is_live () const
165 return immutable_property_alist_ != SCM_EOL;