/*
- breathing_sign.cc -- implement Breathing_sign
+ This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1999 Michael Krause
+ Copyright (C) 1999--2014 Michael Krause
+ Extensions for ancient notation (c) 2003--2014 by Juergen Reuter
- written for the GNU LilyPond music typesetter
+ 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.
- TODO: --> see breathing-sign-engraver.cc
+ 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 "staff-symbol-referencer.hh"
-#include "directional-element-interface.hh"
#include "breathing-sign.hh"
-#include "string.hh"
-#include "molecule.hh"
-#include "paper-def.hh"
-#include "lookup.hh"
-#include "debug.hh"
+
#include "dimensions.hh"
#include "direction.hh"
+#include "directional-element-interface.hh"
+#include "font-interface.hh"
+#include "grob.hh"
+#include "lookup.hh"
+#include "output-def.hh"
+#include "staff-symbol.hh"
+#include "staff-symbol-referencer.hh"
+#include "text-interface.hh"
-MAKE_SCHEME_CALLBACK (Breathing_sign,brew_molecule,1);
-SCM
-Breathing_sign::brew_molecule (SCM smob)
+/*
+ UGH : this is full of C&P code. Consolidate! --hwn
+*/
+
+/*
+ Gregorian chant divisio minima. (Actually, this was the original
+ breathing sign by Michael. -- jr)
+*/
+MAKE_SCHEME_CALLBACK (Breathing_sign, divisio_minima, 1);
+SCM
+Breathing_sign::divisio_minima (SCM smob)
{
- Grob * me = unsmob_grob (smob);
- Real space = Staff_symbol_referencer::staff_space (me);
+ Grob *me = unsmob_grob (smob);
+ Real staff_space = Staff_symbol_referencer::staff_space (me);
+
+ Real thickness = Staff_symbol_referencer::line_thickness (me);
+ thickness *= robust_scm2double (me->get_property ("thickness"), 1.0);
- // todo: cfg'able.
- Interval i1 (0, space / 6), i2 (-space / 2, space / 2);
- Box b (i1, i2);
+ Real blotdiameter = me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"));
- return Lookup::filledbox (b).smobbed_copy ();
+ /*
+ * Draw a small vertical line through the uppermost (or, depending
+ * on direction, lowermost) staff line.
+ */
+ Interval xdim (0, thickness);
+ Interval ydim (-0.5 * staff_space, +0.5 * staff_space);
+ Box b (xdim, ydim);
+ Stencil out = Lookup::round_filled_box (b, blotdiameter);
+ return out.smobbed_copy ();
}
-MAKE_SCHEME_CALLBACK (Breathing_sign,offset_callback,2);
+/*
+ Gregorian chant divisio maior.
+*/
+MAKE_SCHEME_CALLBACK (Breathing_sign, divisio_maior, 1);
SCM
-Breathing_sign::offset_callback (SCM element_smob, SCM)
+Breathing_sign::divisio_maior (SCM smob)
{
- Grob *me = unsmob_grob (element_smob);
-
- Direction d = Directional_element_interface::get (me);
- if (!d)
+ Grob *me = unsmob_grob (smob);
+ Real thickness = Staff_symbol_referencer::line_thickness (me);
+ thickness *= robust_scm2double (me->get_property ("thickness"), 1.0);
+
+ Real blotdiameter = me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"));
+
+ /*
+ Draw a vertical line that is roughly centered vertically in
+ the staff (just like a bar) with the following requirements:
+ 1. length should be at least half the size of the staff
+ 2. both ends should be in the middle of a staff space.
+
+ These two requirements contradict if the first or last space is
+ larger than half of the whole staff (e.g. the staff consists of
+ two lines only); in such cases the first prescription wins.
+ */
+ Interval ydim (0.0, 0.0);
+ if (Grob *staff = Staff_symbol_referencer::get_staff_symbol (me))
{
- d = UP;
- Directional_element_interface::set (me, d);
+ std::vector<Real> line_pos = Staff_symbol::line_positions (staff);
+ if (!line_pos.empty ())
+ {
+ std::sort (line_pos.begin (), line_pos.end ());
+ ydim[DOWN] = line_pos.front ();
+ ydim[UP] = line_pos.back ();
+ if (Real const height = ydim.length ())
+ {
+ ydim.widen (-0.25 * height);
+
+ /*
+ ydim has now the required height; to satisfy req. 2
+ find the staff spaces containing current endpoints.
+
+ standard algorithms are suitable to find the upper
+ line of these spaces; we must choose between
+ upper_bound and lower_bound considering that if
+ there's a line exactly at quarter of the staff (the
+ lower end) then we need the space below it, while if
+ there's a line exactly at three quarters of the staff
+ (upper end) then we need the space above it.
+
+ if the middle of the space found is not low/high
+ enough, take the next space (if there are no more
+ spaces, ydim won't be enlarged further).
+ */
+ std::vector<Real>::const_iterator it
+ = std::lower_bound (line_pos.begin (), line_pos.end (),
+ ydim[DOWN]);
+ assert (line_pos.begin () < it);
+ double val = (it[-1] + it[0]) / 2;
+ if (ydim[DOWN] < val && line_pos.begin () < it + 1)
+ val = (it[-2] + it[-1]) / 2;
+ ydim.add_point (val);
+
+ it = std::upper_bound (line_pos.begin (), line_pos.end (),
+ ydim[UP]);
+ assert (it < line_pos.end ());
+ val = (it[-1] + it[0]) / 2;
+ if (val < ydim[UP] && it + 1 < line_pos.end ())
+ val = (it[0] + it[1]) / 2;
+ ydim.add_point (val);
+ }
+ }
}
- Real inter_f = Staff_symbol_referencer::staff_space (me)/2;
- int sz = Staff_symbol_referencer::line_count (me)-1;
- return gh_double2scm (inter_f * sz * d);
+ ydim *= Staff_symbol_referencer::staff_space (me) / 2;
+
+ Interval xdim (0, thickness);
+ Box b (xdim, ydim);
+ Stencil out = Lookup::round_filled_box (b, blotdiameter);
+ return out.smobbed_copy ();
+}
+
+/*
+ Gregorian chant divisio maxima.
+*/
+MAKE_SCHEME_CALLBACK (Breathing_sign, divisio_maxima, 1);
+SCM
+Breathing_sign::divisio_maxima (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ Real staff_space = Staff_symbol_referencer::staff_space (me);
+ Real thickness = Staff_symbol_referencer::line_thickness (me);
+ thickness *= robust_scm2double (me->get_property ("thickness"), 1.0);
+
+ Real blotdiameter = me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"));
+
+ // like a "|" type bar
+ Interval xdim (0, thickness);
+ Interval ydim = Staff_symbol_referencer::staff_span (me);
+ ydim *= staff_space / 2;
+ Box b (xdim, ydim);
+ Stencil out = Lookup::round_filled_box (b, blotdiameter);
+ return out.smobbed_copy ();
}
-void
-Breathing_sign::set_interface (Grob *b)
+/*
+ Gregorian chant finalis.
+*/
+MAKE_SCHEME_CALLBACK (Breathing_sign, finalis, 1);
+SCM
+Breathing_sign::finalis (SCM smob)
{
- Staff_symbol_referencer::set_interface (b);
+ Grob *me = unsmob_grob (smob);
+ Real staff_space = Staff_symbol_referencer::staff_space (me);
+ Real thickness = Staff_symbol_referencer::line_thickness (me);
+ thickness *= robust_scm2double (me->get_property ("thickness"), 1.0);
+
+ Real blotdiameter = me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"));
+ // like a "||" type bar
+ Interval xdim (0, thickness);
+ Interval ydim = Staff_symbol_referencer::staff_span (me);
+ ydim *= staff_space / 2;
+ Box b (xdim, ydim);
+ Stencil line1 = Lookup::round_filled_box (b, blotdiameter);
+ Stencil line2 (line1);
+ line2.translate_axis (0.5 * staff_space, X_AXIS);
+ line1.add_stencil (line2);
+
+ return line1.smobbed_copy ();
}
+
+MAKE_SCHEME_CALLBACK (Breathing_sign, offset_callback, 1);
+SCM
+Breathing_sign::offset_callback (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+
+ Direction d = get_grob_direction (me);
+ if (!d)
+ {
+ d = UP;
+ set_grob_direction (me, d);
+ }
+
+ Grob *staff = Staff_symbol_referencer::get_staff_symbol (me);
+ if (staff)
+ {
+ Interval iv = Staff_symbol::line_span (staff);
+ Real inter = Staff_symbol::staff_space (staff) / 2;
+ return scm_from_double (inter * iv[d]);
+ }
+
+ return scm_from_double (0.0);
+}
+
+ADD_INTERFACE (Breathing_sign,
+ "A breathing sign.",
+
+ /* properties */
+ "direction "
+ );
projects / lilypond.git / blobdiff