+/*
+ accidental.cc -- implement Accidental_interface
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 2001--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
+#include "accidental-interface.hh"
#include "font-interface.hh"
+#include "international.hh"
#include "item.hh"
-#include "molecule.hh"
+#include "output-def.hh"
+#include "paper-column.hh"
+#include "pitch.hh"
+#include "stencil.hh"
-/*
- TODO: insert support for smaller cautionaries, tie-break-reminders.
- Either here or in new-accidental-engraver.
+Stencil
+parenthesize (Grob *me, Stencil m)
+{
+ 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");
- 'accidentals should go, for a single 'accidental property -- see
- accidental-placement.cc
+ m.add_at_edge (X_AXIS, LEFT, Stencil (open), 0);
+ m.add_at_edge (X_AXIS, RIGHT, Stencil (close), 0);
-*/
-class Accidental_interface
+ return m;
+}
+
+/* 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)
{
-public:
- DECLARE_SCHEME_CALLBACK (brew_molecule, (SCM));
- static bool has_interface (Grob*);
-};
+ Stencil *s = unsmob_stencil (Accidental_interface::get_stencil (me));
-Molecule
-parenthesize (Grob*me, Molecule m)
+ if (s)
+ return ly_interval2scm (s->extent (a));
+ return ly_interval2scm (Interval ());
+}
+
+MAKE_SCHEME_CALLBACK (Accidental_interface, height, 1);
+SCM
+Accidental_interface::height (SCM smob)
{
- Molecule open = Font_interface::get_default_font (me)->find_by_name (String ("accidentals-leftparen"));
- Molecule close = Font_interface::get_default_font (me)->find_by_name (String ("accidentals-rightparen"));
- m.add_at_edge (X_AXIS, LEFT, Molecule (open), 0);
- m.add_at_edge (X_AXIS, RIGHT, Molecule (close), 0);
+ return get_extent (unsmob_grob (smob), Y_AXIS);
+}
- return m;
+MAKE_SCHEME_CALLBACK (Accidental_interface, width, 1);
+SCM
+Accidental_interface::width (SCM smob)
+{
+ return get_extent (unsmob_grob (smob), X_AXIS);
}
-MAKE_SCHEME_CALLBACK (Accidental_interface,brew_molecule,1);
+MAKE_SCHEME_CALLBACK (Accidental_interface, pure_height, 3);
SCM
-Accidental_interface::brew_molecule (SCM smob)
+Accidental_interface::pure_height (SCM smob, SCM start_scm, SCM)
{
- Grob *me = unsmob_grob (smob);
+ Item *me = dynamic_cast<Item*> (unsmob_grob (smob));
+ int start = scm_to_int (start_scm);
+ int rank = me->get_column ()->get_rank ();
- SCM scm_style = me->get_grob_property ("style");
-
- String style;
- if (gh_symbol_p (scm_style))
+ if (to_boolean (me->get_property ("forced"))
+ || !unsmob_grob (me->get_object ("tie"))
+ || rank == start + 1) /* we are at the start of a line */
{
- style = ly_scm2string (scm_symbol_to_string (scm_style));
+ Stencil *s = unsmob_stencil (get_stencil (me));
+ if (s)
+ return ly_interval2scm (s->extent (Y_AXIS));
}
- else
+
+ return ly_interval2scm (Interval ());
+}
+
+vector<Box>
+Accidental_interface::accurate_boxes (Grob *me, Grob **common)
+{
+ 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"));
+ if (!me->is_live ())
+ return boxes;
+
+ if (!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.mirroredflat")
+ {
+ Box stem = b;
+ Box bulb = b;
+
+ /*
+ we could make the stem thinner, but that places the flats
+ really close.
+ */
+ Direction bulb_dir =
+ glyph_name == "accidentals.mirroredflat" ? LEFT : RIGHT;
+ stem[X_AXIS][bulb_dir] = stem[X_AXIS].center ();
+
+ /*
+ 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 (glyph_name == "accidentals.natural")
+ {
+ 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);
+ }
/*
- preferably no name for the default style.
- */
- style = "";
+ TODO: add support for, double flat.
+ */
}
-
- Molecule mol;
- for (SCM s = me->get_grob_property ("accidentals");
- gh_pair_p (s); s= gh_cdr (s))
+ 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));
+
+ for (vsize i = boxes.size (); i--;)
+ boxes[i].translate (o);
+
+ return boxes;
+}
+
+MAKE_SCHEME_CALLBACK (Accidental_interface, print, 1);
+SCM
+Accidental_interface::print (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ Grob *tie = unsmob_grob (me->get_object ("tie"));
+
+ if (tie && !tie->original ()
+ && !to_boolean (me->get_property ("forced")))
{
- SCM entry = gh_car (s);
-
-
- Molecule acc (Font_interface::get_default_font (me)->
- find_by_name (String ("accidentals-") +
- style +
- to_str (gh_scm2int(entry))));
-
- mol.add_at_edge (X_AXIS, RIGHT, acc, 0.1);
+ me->suicide ();
+ return SCM_EOL;
}
-#if 0
- // TODO.
- if (to_boolean (me->get_grob_property ("parenthesize")))
- mol = parenthesize (me, mol);
-#endif
- return mol.smobbed_copy();
+ 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);
+
+ if (!scm_is_string (glyph_name))
+ {
+ me->warning (_f ("Could not find glyph-name for alteration %s",
+ ly_scm_write_string (alt).c_str ()));
+ return SCM_EOL;
+ }
+
+ Stencil 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.
+ */
+ Stencil acc (fm->find_by_name ("accidentals.natural"));
+ if (acc.is_empty ())
+ me->warning (_ ("natural alteration glyph not found"));
+ else
+ mol.add_at_edge (X_AXIS, LEFT, acc, 0.1);
+ }
+
+ if (to_boolean (me->get_property ("parenthesized")))
+ mol = parenthesize (me, mol);
-ADD_INTERFACE(Accidental_interface, "accidental-interface",
- "a single accidental",
- "style accidentals");
+ return mol.smobbed_copy ();
+}
+
+
+ADD_INTERFACE (Accidental_interface,
+ "A single accidental.",
+
+ /* properties */
+ "alteration "
+ "avoid-slur "
+ "forced "
+ "parenthesized "
+ "restore-first "
+ "glyph-name-alist "
+ "tie "
+ );