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 "directional-element-interface.hh"
12 #include "side-position-interface.hh"
14 #include "pointer-group-interface.hh"
18 typedef map<Grob*, vector <Grob*> > Grob_scripts_map;
21 Script_column::add_side_positioned (Grob *me, Grob *script)
23 SCM p = script->get_property ("script-priority");
24 if (!scm_is_number (p))
27 Pointer_group_interface::add_grob (me, ly_symbol2scm ("scripts"), script);
30 LY_DEFINE (ly_grob_script_priority_less, "ly:grob-script-priority-less",
31 2, 0, 0, (SCM a, SCM b),
32 "Compare two grobs by script priority. For internal use.")
34 Grob *i1 = unsmob_grob (a);
35 Grob *i2 = unsmob_grob (b);
37 SCM p1 = i1->get_property ("script-priority");
38 SCM p2 = i2->get_property ("script-priority");
40 return scm_to_int (p1) < scm_to_int (p2) ? SCM_BOOL_T : SCM_BOOL_F;
43 MAKE_SCHEME_CALLBACK (Script_column, row_before_line_breaking, 1);
45 Script_column::row_before_line_breaking (SCM smob)
47 Grob *me = unsmob_grob (smob);
48 vector<Grob*> horizontal_grobs;
49 extract_grob_set (me, "scripts", scripts);
51 Grob_scripts_map head_scripts_map;
52 for (vsize i = 0; i < scripts.size (); i++)
54 Grob *sc = scripts[i];
57 Don't want to consider scripts horizontally next to notes.
59 if (sc->get_property_data (ly_symbol2scm ("Y-offset")) !=
60 Side_position_interface::x_aligned_side_proc)
62 head_scripts_map[sc->get_parent (Y_AXIS)].push_back (sc);
66 for (Grob_scripts_map::const_iterator i (head_scripts_map.begin ());
67 i != head_scripts_map.end ();
70 order_grobs ((*i).second);
73 return SCM_UNSPECIFIED;
77 MAKE_SCHEME_CALLBACK (Script_column, before_line_breaking, 1);
79 Script_column::before_line_breaking (SCM smob)
81 Grob *me = unsmob_grob (smob);
82 vector<Grob*> staff_sided;
84 extract_grob_set (me, "scripts", scripts);
85 for (vsize i = 0; i < scripts.size (); i++)
87 Grob *sc = scripts[i];
90 Don't want to consider scripts horizontally next to notes.
92 if (sc->get_property_data (ly_symbol2scm ("X-offset")) !=
93 Side_position_interface::x_aligned_side_proc)
94 staff_sided.push_back (sc);
97 order_grobs (staff_sided);
98 return SCM_UNSPECIFIED;
103 Script_column::order_grobs (vector<Grob*> grobs)
105 Drul_array<SCM> scripts_drul (SCM_EOL, SCM_EOL);
106 for (vsize i = 0; i < grobs.size (); i++)
109 Direction d = get_grob_direction (g);
111 scripts_drul[d] = scm_cons (g->self_scm (), scripts_drul[d]);
117 SCM ss = scm_reverse_x (scripts_drul[d], SCM_EOL);
118 ss = scm_stable_sort_x (ss, ly_grob_script_priority_less_proc);
121 for (SCM s = ss; scm_is_pair (s); s = scm_cdr (s))
123 Grob *g = unsmob_grob (scm_car (s));
125 Side_position_interface::add_support (g, last);
130 while (flip (&d) != DOWN);
133 ADD_INTERFACE (Script_column, "script-column-interface",
134 "An interface that sorts scripts "
135 "according to their @code{script-priority}",