/*
- accidental.cc -- implement Accidental_interface
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2001--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2001--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "accidental-interface.hh"
#include "paper-column.hh"
#include "pitch.hh"
#include "stencil.hh"
+#include "skyline-pair.hh"
Stencil
parenthesize (Grob *me, Stencil m)
{
- Font_metric * font
- = Font_interface::get_default_font (me);
+ Font_metric *font
+ = Font_interface::get_default_font (me);
Stencil open
= font->find_by_name ("accidentals.leftparen");
Stencil close
= font->find_by_name ("accidentals.rightparen");
- m.add_at_edge (X_AXIS, LEFT, Stencil (open), 0, 0);
- m.add_at_edge (X_AXIS, RIGHT, Stencil (close), 0, 0);
+ m.add_at_edge (X_AXIS, LEFT, Stencil (open), 0);
+ m.add_at_edge (X_AXIS, RIGHT, Stencil (close), 0);
return m;
}
-/*
- Hmm. Need separate callback, or perhaps #'live bool property.
- */
-MAKE_SCHEME_CALLBACK (Accidental_interface, after_line_breaking, 1);
-SCM
-Accidental_interface::after_line_breaking (SCM smob)
+/* If this gets called before line breaking, we will return a non-trivial
+ extent even if we belong to a tie and won't actually get printed. */
+static SCM
+get_extent (Grob *me, Axis a)
{
- Grob *me = unsmob_grob (smob);
- Grob *tie = unsmob_grob (me->get_object ("tie"));
+ Stencil *s = unsmob_stencil (Accidental_interface::get_stencil (me));
- if (tie && !tie->original ()
- && !to_boolean (me->get_property ("forced")))
- {
- me->suicide ();
- }
-
- return SCM_UNSPECIFIED;
+ if (s)
+ return ly_interval2scm (s->extent (a));
+ return ly_interval2scm (Interval ());
}
-/* This callback exists for the sole purpose of allowing us to override
- its pure equivalent to accidental-interface::pure-height */
MAKE_SCHEME_CALLBACK (Accidental_interface, height, 1);
SCM
Accidental_interface::height (SCM smob)
{
- return Grob::stencil_height (smob);
+ return get_extent (unsmob_grob (smob), Y_AXIS);
}
-MAKE_SCHEME_CALLBACK (Accidental_interface, pure_height, 3);
+MAKE_SCHEME_CALLBACK (Accidental_interface, width, 1);
SCM
-Accidental_interface::pure_height (SCM smob, SCM start_scm, SCM)
+Accidental_interface::width (SCM smob)
{
- Item *me = dynamic_cast<Item*> (unsmob_grob (smob));
- int start = scm_to_int (start_scm);
- int rank = me->get_column ()->get_rank ();
-
- bool visible = to_boolean (me->get_property ("forced"))
- || !unsmob_grob (me->get_object ("tie"))
- || rank != start + 1; /* we are in the middle of a line */
-
- return visible ? Grob::stencil_height (smob) : ly_interval2scm (Interval ());
+ return get_extent (unsmob_grob (smob), X_AXIS);
}
-vector<Box>
-Accidental_interface::accurate_boxes (Grob *me, Grob **common)
+MAKE_SCHEME_CALLBACK (Accidental_interface, horizontal_skylines, 1);
+SCM
+Accidental_interface::horizontal_skylines (SCM smob)
{
- Box b;
- b[X_AXIS] = me->extent (me, X_AXIS);
- b[Y_AXIS] = me->extent (me, Y_AXIS);
-
- vector<Box> boxes;
-
- bool parens = to_boolean (me->get_property ("parenthesized"));
+ Grob *me = unsmob_grob (smob);
+ if (!me->is_live ())
+ return Skyline_pair ().smobbed_copy ();
+
+ /*
+ * Using the print function may trigger a suicide
+ * before line breaking. It is therefore `unpure' (c).
+ * We use the more basic get_stencil.
+ */
+ Stencil *my_stencil = unsmob_stencil (get_stencil (me));
+ if (!my_stencil)
+ return Skyline_pair ().smobbed_copy ();
+
+ Skyline_pair *sky =
+ Skyline_pair::unsmob
+ (Stencil::skylines_from_stencil
+ (my_stencil->smobbed_copy (), 0.0, Y_AXIS));
- SCM scm_style = me->get_property ("style");
- if (!scm_is_symbol (scm_style)
- && !to_boolean (me->get_property ("restore-first"))
- && !parens)
+ SCM alist = me->get_property ("glyph-name-alist");
+ SCM alt = me->get_property ("alteration");
+ string glyph_name = robust_scm2string (ly_assoc_get (alt, alist, SCM_BOOL_F),
+ "");
+ if (glyph_name == "accidentals.flat"
+ || glyph_name == "accidentals.flatflat")
{
- Rational alteration = ly_scm2rational (me->get_property ("alteration"));
- if (alteration == FLAT_ALTERATION)
- {
- Box stem = b;
- Box bulb = b;
-
- /*
- we could make the stem thinner, but that places the flats
- really close.
- */
- stem[X_AXIS][RIGHT] *= .5;
-
- /*
- To prevent vertical alignment for 6ths
- */
- stem[Y_AXIS] *= 1.1;
- bulb[Y_AXIS][UP] *= .35;
-
- boxes.push_back (bulb);
- boxes.push_back (stem);
- }
- else if (alteration == NATURAL_ALTERATION)
- {
- Box lstem = b;
- Box rstem = b;
- Box belly = b;
-
- lstem[Y_AXIS] *= 1.1;
- rstem[Y_AXIS] *= 1.1;
-
- belly[Y_AXIS] *= 0.75;
- lstem[X_AXIS][RIGHT] *= .33;
- rstem[X_AXIS][LEFT] = rstem[X_AXIS].linear_combination (1.0 / 3.0);
- lstem[Y_AXIS][DOWN] = belly[Y_AXIS][DOWN];
- rstem[Y_AXIS][UP] = belly[Y_AXIS][UP];
- boxes.push_back (belly);
- boxes.push_back (lstem);
- boxes.push_back (rstem);
- }
- /*
- TODO: add support for, double flat.
- */
+ // a bit more padding for the right of the stem
+ // we raise the stem horizontally to a bit less than the average
+ // horizontal "height" of the entire glyph. This will bring flats
+ // closer to doubleflats, which looks better (MS opinion).
+ // this should work for all fonts where the flat is not
+ // completely bizarre
+ Real left = my_stencil->extent (X_AXIS)[LEFT];
+ Real right = my_stencil->extent (X_AXIS)[RIGHT] * 0.375;
+ Real down = my_stencil->extent (Y_AXIS)[DOWN];
+ Real up = my_stencil->extent (Y_AXIS)[UP];
+ vector<Box> boxes;
+ boxes.push_back (Box (Interval (left, right), Interval (down, up)));
+ Skyline merge_with_me (boxes, Y_AXIS, RIGHT);
+ (*sky)[RIGHT].merge (merge_with_me);
}
+ return sky->smobbed_copy ();
+}
- if (!boxes.size ())
- boxes.push_back (b);
-
- Offset o (me->relative_coordinate (common[X_AXIS], X_AXIS),
- me->relative_coordinate (common[Y_AXIS], Y_AXIS));
+MAKE_SCHEME_CALLBACK (Accidental_interface, pure_height, 3);
+SCM
+Accidental_interface::pure_height (SCM smob, SCM start_scm, SCM)
+{
+ Item *me = dynamic_cast<Item *> (unsmob_grob (smob));
+ int start = scm_to_int (start_scm);
+ int rank = me->get_column ()->get_rank ();
- for (vsize i = boxes.size (); i--;)
- boxes[i].translate (o);
+ if (to_boolean (me->get_property ("forced"))
+ || !unsmob_grob (me->get_object ("tie"))
+ || (rank == start + 1 && /* we are at the start of a line */
+ !to_boolean (me->get_property ("hide-tied-accidental-after-break"))))
+ {
+ Stencil *s = unsmob_stencil (get_stencil (me));
+ if (s)
+ return ly_interval2scm (s->extent (Y_AXIS));
+ }
- return boxes;
+ return ly_interval2scm (Interval ());
}
MAKE_SCHEME_CALLBACK (Accidental_interface, print, 1);
Accidental_interface::print (SCM smob)
{
Grob *me = unsmob_grob (smob);
+ Grob *tie = unsmob_grob (me->get_object ("tie"));
+ if (tie
+ && (to_boolean (me->get_property ("hide-tied-accidental-after-break"))
+ || (!tie->original () && !to_boolean (me->get_property ("forced")))))
+ {
+ me->suicide ();
+ return SCM_EOL;
+ }
+
+ return get_stencil (me);
+}
+
+SCM
+Accidental_interface::get_stencil (Grob *me)
+{
Font_metric *fm = Font_interface::get_default_font (me);
SCM alist = me->get_property ("glyph-name-alist");
SCM alt = me->get_property ("alteration");
SCM glyph_name = ly_assoc_get (alt, alist, SCM_BOOL_F);
-
+ Stencil mol;
+
if (!scm_is_string (glyph_name))
{
me->warning (_f ("Could not find glyph-name for alteration %s",
- ly_scm2rational (alt).to_string ().c_str ()));
- return SCM_EOL;
+ ly_scm_write_string (alt).c_str ()));
+ mol = fm->find_by_name ("noteheads.s1cross");
}
-
- Stencil mol (fm->find_by_name (scm_i_string_chars (glyph_name)));
+ else
+ mol = fm->find_by_name (ly_scm2string (glyph_name));
+
if (to_boolean (me->get_property ("restore-first")))
{
/*
- this isn't correct for ancient accidentals, but they don't
- use double flats/sharps anyway.
- */
+ this isn't correct for ancient accidentals, but they don't
+ use double flats/sharps anyway.
+ */
Stencil acc (fm->find_by_name ("accidentals.natural"));
if (acc.is_empty ())
- me->warning (_ ("natural alteration glyph not found"));
+ me->warning (_ ("natural alteration glyph not found"));
else
- mol.add_at_edge (X_AXIS, LEFT, acc, 0.1, 0);
+ mol.add_at_edge (X_AXIS, LEFT, acc, 0.1);
}
-
+
if (to_boolean (me->get_property ("parenthesized")))
mol = parenthesize (me, mol);
return mol.smobbed_copy ();
}
-
ADD_INTERFACE (Accidental_interface,
- "a single accidental",
-
- /* props */
- "alteration "
- "avoid-slur "
- "forced "
- "parenthesized "
- "restore-first "
- "glyph-name-alist "
- "tie "
- );
+ "A single accidental.",
+
+ /* properties */
+ "alteration "
+ "avoid-slur "
+ "forced "
+ "glyph-name-alist "
+ "glyph-name "
+ "hide-tied-accidental-after-break "
+ "parenthesized "
+ "restore-first "
+ "tie "
+ );