-/*
- stem-tremolo.cc -- implement Stem_tremolo
-
+/*
+ stem-tremolo.cc -- implement Stem_tremolo
+
source file of the GNU LilyPond music typesetter
-
- (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
+
+#include "stem-tremolo.hh"
+
#include "spanner.hh"
#include "beam.hh"
#include "directional-element-interface.hh"
#include "lookup.hh"
#include "output-def.hh"
#include "staff-symbol-referencer.hh"
-#include "stem-tremolo.hh"
#include "stem.hh"
#include "warn.hh"
Stem_tremolo::dim_callback (SCM e, SCM)
{
Grob *se = unsmob_grob (e);
-
+
Real space = Staff_symbol_referencer::staff_space (se);
return ly_interval2scm (Interval (-space, space));
}
Stencil
Stem_tremolo::raw_stencil (Grob *me)
{
- Grob *stem = unsmob_grob (me->get_property ("stem"));
- Spanner*beam = Stem::get_beam (stem);
+ Grob *stem = unsmob_grob (me->get_object ("stem"));
+ Spanner *beam = Stem::get_beam (stem);
Real dydx;
if (beam)
{
SCM s = beam->get_property ("positions");
if (is_number_pair (s))
dy = -scm_to_double (scm_car (s)) +scm_to_double (scm_cdr (s));
-
+
Real dx = Beam::last_visible_stem (beam)->relative_coordinate (0, X_AXIS)
- Beam::first_visible_stem (beam)->relative_coordinate (0, X_AXIS);
- dydx = dx ? dy/dx : 0;
+ dydx = dx ? dy / dx : 0;
}
else
// urg
dydx = 0.25;
Real ss = Staff_symbol_referencer::staff_space (me);
- Real thick = robust_scm2double (me->get_property ("beam-thickness"),1);
- Real width = robust_scm2double (me->get_property ("beam-width"),1);
- Real blot = me->get_paper ()->get_dimension (ly_symbol2scm ("blotdiameter"));
+ Real thick = robust_scm2double (me->get_property ("beam-thickness"), 1);
+ Real width = robust_scm2double (me->get_property ("beam-width"), 1);
+ Real blot = me->get_layout ()->get_dimension (ly_symbol2scm ("blotdiameter"));
width *= ss;
thick *= ss;
-
+
Stencil a (Lookup::beam (dydx, width, thick, blot));
a.translate (Offset (-width * 0.5, width * 0.5 * dydx));
-
+
int tremolo_flags = 0;
SCM s = me->get_property ("flag-count");
if (scm_is_number (s))
if (!tremolo_flags)
{
- programming_error ("No tremolo flags?");
+ programming_error ("no tremolo flags");
me->suicide ();
return Stencil ();
/* Who the fuck is 0.81 ? --hwn. */
Real beam_translation = beam ? Beam::get_beam_translation (beam) : 0.81;
- Stencil mol;
+ Stencil mol;
for (int i = 0; i < tremolo_flags; i++)
{
Stencil b (a);
return mol;
}
-MAKE_SCHEME_CALLBACK (Stem_tremolo,print,1);
+MAKE_SCHEME_CALLBACK (Stem_tremolo, print, 1);
SCM
-Stem_tremolo::print (SCM grob)
+Stem_tremolo::print (SCM grob)
{
Grob *me = unsmob_grob (grob);
- Grob *stem = unsmob_grob (me->get_property ("stem"));
+ Grob *stem = unsmob_grob (me->get_object ("stem"));
if (!stem)
{
- programming_error ("No stem for stem-tremolo");
+ programming_error ("no stem for stem-tremolo");
return SCM_EOL;
}
-
+
Spanner *beam = Stem::get_beam (stem);
Direction stemdir = Stem::get_direction (stem);
if (stemdir == 0)
int beam_count = beam ? (Stem::beam_multiplicity (stem).length () + 1) : 0;
Real beamthickness = 0.0;
- SCM sbt = (beam) ? beam->get_property ("thickness") : SCM_EOL ;
+ SCM sbt = (beam) ? beam->get_property ("thickness") : SCM_EOL;
if (scm_is_number (sbt))
beamthickness = scm_to_double (sbt) * ss;
Real end_y
= Stem::stem_end_position (stem) * ss / 2
- stemdir * (beam_count * beamthickness
- + ((beam_count -1) >? 0) * beam_translation);
+ + (max (beam_count -1, 0) * beam_translation));
/* FIXME: the 0.33 ss is to compensate for the size of the note head. */
Real chord_start_y = Stem::chord_start_y (stem) + 0.33 * ss * stemdir;
return mol.smobbed_copy ();
}
-
-
-ADD_INTERFACE (Stem_tremolo,"stem-tremolo-interface",
- "A beam slashing a stem to indicate a tremolo.",
- "stem beam-width beam-thickness flag-count");
+ADD_INTERFACE (Stem_tremolo, "stem-tremolo-interface",
+ "A beam slashing a stem to indicate a tremolo.",
+ "stem beam-width beam-thickness flag-count");