2 script-column.cc -- implement Script_column
4 source file of the GNU LilyPond music typesetter
6 (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #include "script-column.hh"
11 #include "accidental-placement.hh"
12 #include "arpeggio.hh"
13 #include "directional-element-interface.hh"
14 #include "side-position-interface.hh"
16 #include "pointer-group-interface.hh"
20 typedef map<Grob*, vector <Grob*> > Grob_scripts_map;
23 Script_column::add_side_positioned (Grob *me, Grob *script)
25 SCM p = script->get_property ("script-priority");
26 if (!scm_is_number (p))
29 Pointer_group_interface::add_grob (me, ly_symbol2scm ("scripts"), script);
32 LY_DEFINE (ly_grob_script_priority_less, "ly:grob-script-priority-less",
33 2, 0, 0, (SCM a, SCM b),
34 "Compare two grobs by script priority. For internal use.")
36 Grob *i1 = unsmob_grob (a);
37 Grob *i2 = unsmob_grob (b);
39 SCM p1 = i1->get_property ("script-priority");
40 SCM p2 = i2->get_property ("script-priority");
42 return scm_to_int (p1) < scm_to_int (p2) ? SCM_BOOL_T : SCM_BOOL_F;
45 MAKE_SCHEME_CALLBACK (Script_column, row_before_line_breaking, 1);
47 Script_column::row_before_line_breaking (SCM smob)
49 Grob *me = unsmob_grob (smob);
50 vector<Grob*> horizontal_grobs;
51 extract_grob_set (me, "scripts", scripts);
53 Grob_scripts_map head_scripts_map;
54 vector<Grob *> affect_all_grobs;
55 for (vsize i = 0; i < scripts.size (); i++)
57 Grob *sc = scripts[i];
60 Don't want to consider scripts horizontally next to notes.
62 if (Accidental_placement::has_interface (sc)
63 || Arpeggio::has_interface (sc))
65 affect_all_grobs.push_back (sc);
67 else if (sc->get_property_data ("Y-offset") !=
68 Side_position_interface::x_aligned_side_proc)
70 head_scripts_map[sc->get_parent (Y_AXIS)].push_back (sc);
74 for (Grob_scripts_map::const_iterator i (head_scripts_map.begin ());
75 i != head_scripts_map.end ();
78 vector<Grob*> grobs = (*i).second;
80 // this isn't right in all cases, but in general a safe assumption.
81 concat (grobs, affect_all_grobs);
85 return SCM_UNSPECIFIED;
89 MAKE_SCHEME_CALLBACK (Script_column, before_line_breaking, 1);
91 Script_column::before_line_breaking (SCM smob)
93 Grob *me = unsmob_grob (smob);
94 vector<Grob*> staff_sided;
96 extract_grob_set (me, "scripts", scripts);
97 for (vsize i = 0; i < scripts.size (); i++)
99 Grob *sc = scripts[i];
101 Don't want to consider scripts horizontally next to notes.
103 if (sc->get_property_data ("X-offset") !=
104 Side_position_interface::x_aligned_side_proc)
105 staff_sided.push_back (sc);
108 order_grobs (staff_sided);
109 return SCM_UNSPECIFIED;
113 Script_column::order_grobs (vector<Grob*> grobs)
115 Drul_array<SCM> scripts_drul (SCM_EOL, SCM_EOL);
116 for (vsize i = 0; i < grobs.size (); i++)
119 Direction d = get_grob_direction (g);
121 scripts_drul[d] = scm_cons (g->self_scm (), scripts_drul[d]);
127 SCM ss = scm_reverse_x (scripts_drul[d], SCM_EOL);
128 ss = scm_stable_sort_x (ss, ly_grob_script_priority_less_proc);
131 for (SCM s = ss; scm_is_pair (s); s = scm_cdr (s))
133 Grob *g = unsmob_grob (scm_car (s));
135 Side_position_interface::add_support (g, last);
140 while (flip (&d) != DOWN);
143 ADD_INTERFACE (Script_column, "script-column-interface",
144 "An interface that sorts scripts "
145 "according to their @code{script-priority}",