/*
- multi-measure-rest.cc -- implement Multi_measure_rest
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1998--2014 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1998--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+ 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 "multi-measure-rest.hh"
-#include "warn.hh"
+#include "directional-element-interface.hh"
+#include "duration.hh"
+#include "font-interface.hh"
+#include "international.hh"
+#include "lookup.hh"
+#include "misc.hh"
+#include "moment.hh"
#include "output-def.hh"
#include "paper-column.hh" // urg
-#include "font-interface.hh"
+#include "percent-repeat-item.hh"
#include "rest.hh"
-#include "misc.hh"
+#include "separation-item.hh"
+#include "spacing-options.hh"
#include "spanner.hh"
+#include "staff-symbol.hh"
#include "staff-symbol-referencer.hh"
#include "system.hh"
#include "text-interface.hh"
-#include "percent-repeat-item.hh"
-#include "lookup.hh"
-#include "separation-item.hh"
+#include "warn.hh"
Interval
Multi_measure_rest::bar_width (Spanner *me)
{
+ SCM spacing_pair = me->get_property ("spacing-pair");
Interval iv;
- Direction d = LEFT;
- do
+ for (LEFT_and_RIGHT (d))
{
Item *col = me->get_bound (d)->get_column ();
-
- Interval coldim = Paper_column::break_align_width (col);
+ SCM align_sym
+ = (scm_is_pair (spacing_pair)
+ ? index_get_cell (spacing_pair, d)
+ : ly_symbol2scm ("staff-bar"));
+ Interval coldim = Paper_column::break_align_width (col, align_sym);
iv[d] = coldim[-d];
}
- while ((flip (&d)) != LEFT);
return iv;
}
Spanner *sp = dynamic_cast<Spanner *> (me);
Stencil r = Percent_repeat_item_interface::x_percent (me, 1);
+ r.translate_axis (-r.extent (X_AXIS).center (), X_AXIS);
// ugh copy & paste.
Grob *common_x = sp->get_bound (LEFT)->common_refpoint (sp->get_bound (RIGHT),
- X_AXIS);
+ X_AXIS);
Interval sp_iv = bar_width (sp);
Real x_off = 0.0;
Stencil mol;
mol.add_stencil (symbol_stencil (me, space));
- int measures = 0;
- SCM m (me->get_property ("measure-count"));
- if (scm_is_number (m))
- measures = scm_to_int (m);
-
mol.translate_axis (x_off, X_AXIS);
return mol.smobbed_copy ();
}
+MAKE_SCHEME_CALLBACK (Multi_measure_rest, height, 1);
+SCM
+Multi_measure_rest::height (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+
+ Real space = 1000000; // something very large...
+
+ Stencil mol;
+ mol.add_stencil (symbol_stencil (me, space));
+
+ return ly_interval2scm (mol.extent (Y_AXIS));
+}
+
+int
+calc_closest_duration_log (Grob *me, double duration, bool force_round_up, bool paranoid)
+{
+ bool round_up = force_round_up
+ || to_boolean (me->get_property ("round-up-to-longer-rest"));
+ int closest_usable_duration_log;
+
+ // Out of range initial values.
+ if (round_up)
+ closest_usable_duration_log = -15; // high value
+ else
+ closest_usable_duration_log = 15; // low value
+ int minimum_usable_duration_log = -15;
+ int maximum_usable_duration_log = 15;
+
+ SCM duration_logs_list = me->get_property ("usable-duration-logs");
+ if (paranoid
+ && (to_boolean (scm_null_p (duration_logs_list))
+ || !to_boolean (scm_list_p (duration_logs_list))))
+ {
+ warning (_ ("usable-duration-logs must be a non-empty list."
+ " Falling back to whole rests."));
+ closest_usable_duration_log = 0;
+ }
+ else
+ {
+ for (SCM s = duration_logs_list; scm_is_pair (s); s = scm_cdr (s))
+ {
+ int dur_log = scm_to_int (scm_car (s));
+ if (dur_log > minimum_usable_duration_log)
+ minimum_usable_duration_log = dur_log;
+ if (dur_log < maximum_usable_duration_log)
+ maximum_usable_duration_log = dur_log;
+ double dur = pow (2.0, -dur_log);
+ if (round_up)
+ {
+ if (duration <= dur && dur_log > closest_usable_duration_log)
+ closest_usable_duration_log = dur_log;
+ }
+ else
+ {
+ if (duration >= dur && dur_log < closest_usable_duration_log)
+ closest_usable_duration_log = dur_log;
+ }
+ }
+ }
+
+ if (closest_usable_duration_log == 15)
+ closest_usable_duration_log = minimum_usable_duration_log;
+ if (closest_usable_duration_log == -15)
+ closest_usable_duration_log = maximum_usable_duration_log;
+
+ return closest_usable_duration_log;
+}
+
+int
+calc_measure_duration_log (Grob *me, bool paranoid)
+{
+ SCM sml = dynamic_cast<Spanner *> (me)->get_bound (LEFT)
+ ->get_property ("measure-length");
+ Rational ml = (unsmob_moment (sml)) ? unsmob_moment (sml)->main_part_
+ : Rational (1);
+ double measure_duration = ml.Rational::to_double ();
+ bool force_round_up = to_boolean (scm_list_p (scm_member (scm_cons (scm_from_int64 (ml.numerator ()),
+ scm_from_int64 (ml.denominator ())),
+ me->get_property ("round-up-exceptions"))));
+
+ return calc_closest_duration_log (me, measure_duration, force_round_up, paranoid);
+}
+
Stencil
Multi_measure_rest::symbol_stencil (Grob *me, Real space)
{
- int measures = 0;
+ int measure_count = 0;
SCM m (me->get_property ("measure-count"));
if (scm_is_number (m))
- measures = scm_to_int (m);
- if (measures <= 0)
+ measure_count = scm_to_int (m);
+ if (measure_count <= 0)
return Stencil ();
SCM limit = me->get_property ("expand-limit");
- if (measures > scm_to_int (limit))
+ if (measure_count > scm_to_int (limit))
{
Real padding = 0.15;
Stencil s = big_rest (me, (1.0 - 2 * padding) * space);
return s;
}
- SCM alist_chain = Font_interface::music_font_alist_chain (me);
-
- Real staff_space = Staff_symbol_referencer::staff_space (me);
- Font_metric *musfont
- = select_font (me->layout (), alist_chain);
+ Font_metric *musfont = Font_interface::get_default_font (me);
+ int mdl = calc_measure_duration_log (me, true);
- SCM sml = me->get_property ("use-breve-rest");
- if (measures == 1)
+ if (measure_count == 1)
{
- if (to_boolean (sml))
- {
- Stencil s = musfont->find_by_name (Rest::glyph_name (me, -1, "", false));
-
- s.translate_axis ((space - s.extent (X_AXIS).length ()) / 2, X_AXIS);
-
- return s;
- }
- else
- {
- Stencil s = musfont->find_by_name (Rest::glyph_name (me, 0, "", true));
-
- /*
- ugh.
- */
- if (Staff_symbol_referencer::get_position (me) == 0.0)
- s.translate_axis (staff_space, Y_AXIS);
-
- s.translate_axis ((space - s.extent (X_AXIS).length ()) / 2, X_AXIS);
-
- return s;
- }
+ if (me->get_property ("staff-position") == SCM_EOL)
+ {
+ int dir = get_grob_direction (me);
+ Real pos = Rest::staff_position_internal (me, mdl, dir);
+ me->set_property ("staff-position", scm_from_double (pos));
+ }
+
+ Stencil s = musfont->find_by_name (Rest::glyph_name (me, mdl, "", true, 0.0));
+
+ s.translate_axis ((space - s.extent (X_AXIS).length ()) / 2, X_AXIS);
+ return s;
}
else
- return church_rest (me, musfont, measures, space);
+ return church_rest (me, musfont, measure_count, space);
}
/*
Kirchenpause (?)
*/
Stencil
-Multi_measure_rest::church_rest (Grob *me, Font_metric *musfont, int measures,
- Real space)
+Multi_measure_rest::church_rest (Grob *me, Font_metric *musfont, int measure_count,
+ Real space)
{
SCM mols = SCM_EOL;
-
- /* See Wanske pp. 125 */
- int l = measures;
- int count = 0;
+ int symbol_count = 0;
Real symbols_width = 0.0;
+ double total_duration = measure_count * pow (2.0, -calc_measure_duration_log (me, true));
- bool use_breve = to_boolean (me->get_property ("use-breve-rest"));
+ SCM staff_position = me->get_property ("staff-position");
- while (l)
+ if (!scm_is_number (staff_position))
{
- if (use_breve)
- {
- int k;
- if (l >= 2)
- {
- l -= 2;
- k = -2;
- }
- else
- {
- l -= 1;
- k = -1;
- }
-
- Stencil r (musfont->find_by_name ("rests." + to_string (k)));
- symbols_width += r.extent (X_AXIS).length ();
- mols = scm_cons (r.smobbed_copy (), mols);
- }
+ // Staff position is somewhat icky regarding its definition for
+ // compatibility reasons. It is intended to be the baseline of
+ // a breve rest. However, when the staff space is more than
+ // single space (like with tablature), it looks better if all
+ // rests are actually hanging. So staff position, in reality,
+ // is the semi-breve position - 2. Everything else is
+ // calculated from there.
+ int dir = get_grob_direction (me);
+ Real pos = Rest::staff_position_internal (me, 0, dir);
+ me->set_property ("staff-position", scm_from_double (pos - 2));
+ }
+
+ while (total_duration > 0)
+ {
+ int dl = calc_closest_duration_log (me, total_duration, false, true);
+ double duration = pow (2.0, -dl);
+
+ total_duration -= duration;
+
+ Stencil r = musfont->find_by_name (Rest::glyph_name (me, dl, "", true, 2));
+
+ Real staff_space = Staff_symbol_referencer::staff_space (me);
+ if (dl == 0)
+ {
+ r.translate_axis (staff_space, Y_AXIS);
+ }
else
- {
- int k;
- if (l >= 4)
- {
- l -= 4;
- k = -2;
- }
- else if (l >= 2)
- {
- l -= 2;
- k = -1;
- }
- else
- {
- k = 0;
- l--;
- }
-
- Stencil r (musfont->find_by_name ("rests." + to_string (k)));
- if (k == 0)
- {
- Real staff_space = Staff_symbol_referencer::staff_space (me);
- r.translate_axis (staff_space, Y_AXIS);
- }
- symbols_width += r.extent (X_AXIS).length ();
- mols = scm_cons (r.smobbed_copy (), mols);
- }
- count++;
+ {
+ r.translate_axis (staff_space-r.extent (Y_AXIS).at (UP), Y_AXIS);
+ }
+ symbols_width += r.extent (X_AXIS).length ();
+ mols = scm_cons (r.smobbed_copy (), mols);
+ symbol_count++;
}
/* Make outer padding this much bigger. */
Real outer_padding_factor = 1.5;
Real inner_padding = (space - symbols_width)
- / (2 * outer_padding_factor + (count - 1));
+ / (2 * outer_padding_factor + (symbol_count - 1));
if (inner_padding < 0)
inner_padding = 1.0;
Stencil mol;
for (SCM s = mols; scm_is_pair (s); s = scm_cdr (s))
mol.add_at_edge (X_AXIS, LEFT, *unsmob_stencil (scm_car (s)),
- inner_padding);
+ inner_padding);
mol.align_to (X_AXIS, LEFT);
mol.translate_axis (outer_padding_factor * inner_padding, X_AXIS);
if (! (sp->get_bound (LEFT) && sp->get_bound (RIGHT)))
{
programming_error ("Multi_measure_rest::get_rods (): I am not spanned!");
- return ;
+ return;
}
Item *li = sp->get_bound (LEFT)->get_column ();
Item *ri = sp->get_bound (RIGHT)->get_column ();
Item *lb = li->find_prebroken_piece (RIGHT);
Item *rb = ri->find_prebroken_piece (LEFT);
+ Grob *spacing = unsmob_grob (li->get_object ("spacing"));
+ if (!spacing)
+ spacing = unsmob_grob (ri->get_object ("spacing"));
+ if (!spacing)
+ me->warning (_ ("Using naive multi measure rest spacing."));
+ else
+ {
+ Spacing_options options;
+ options.init_from_grob (me);
+ int dl = calc_measure_duration_log (me, false);
+ Duration dur = Duration (dl, 0);
+ Rational rat = dur.get_length ();
+ length = max (length, options.get_duration_space (rat));
+ }
Item *combinations[4][2] = {{li, ri},
- {lb, ri},
- {li, rb},
- {lb, rb}};
+ {lb, ri},
+ {li, rb},
+ {lb, rb}
+ };
for (int i = 0; i < 4; i++)
{
Item *ri = combinations[i][1];
if (!li || !ri)
- continue;
+ continue;
Rod rod;
rod.item_drul_[LEFT] = li;
rod.item_drul_[RIGHT] = ri;
rod.distance_ = Paper_column::minimum_distance (li, ri)
- + length
- + 2 * robust_scm2double (me->get_property ("bound-padding"), 1.0);
+ + length
+ + 2 * robust_scm2double (me->get_property ("bound-padding"), 1.0);
Real minlen = robust_scm2double (me->get_property ("minimum-length"), 0);
rod.distance_ = max (rod.distance_, minlen);
Real sym_width = symbol_stencil (me, 0.0).extent (X_AXIS).length ();
calculate_spacing_rods (me, sym_width);
- return SCM_UNSPECIFIED;
+ return SCM_UNSPECIFIED;
}
-
+
MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_text_rods, 1);
SCM
Multi_measure_rest::set_text_rods (SCM smob)
/* FIXME uncached */
Real len = (stil && !stil->extent (X_AXIS).is_empty ())
- ? stil->extent (X_AXIS).length ()
- : 0.0;
+ ? stil->extent (X_AXIS).length ()
+ : 0.0;
calculate_spacing_rods (me, len);
return SCM_UNSPECIFIED;
}
ADD_INTERFACE (Multi_measure_rest,
- "A rest that spans a whole number of measures.",
-
- /* properties */
- "expand-limit "
- "measure-count "
- "hair-thickness "
- "thick-thickness "
- "use-breve-rest "
- "bound-padding "
- "minimum-length "
- );
-
+ "A rest that spans a whole number of measures.",
+
+ /* properties */
+ "bound-padding "
+ "expand-limit "
+ "hair-thickness "
+ "measure-count "
+ "minimum-length "
+ "round-up-exceptions "
+ "round-up-to-longer-rest "
+ "spacing-pair "
+ "thick-thickness "
+ "usable-duration-logs "
+ );
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