#include "font-interface.hh"
#include "lookup.hh"
#include "misc.hh"
+#include "moment.hh"
#include "output-def.hh"
#include "paper-column.hh" // urg
#include "percent-repeat-item.hh"
return mol.smobbed_copy ();
}
+int
+measure_duration_log (Grob *me)
+{
+ SCM sml = dynamic_cast<Spanner *> (me)->get_bound (LEFT)
+ ->get_property ("measure-length");
+ bool round = to_boolean (me->get_property ("round-to-longer-rest"));
+ Rational ml = (unsmob_moment (sml)) ? unsmob_moment (sml)->main_part_ : Rational (1);
+
+ double duration_log = -log2 (ml.Rational::to_double ());
+ int measure_duration_log = int (ceil (duration_log));
+ if (round && duration_log - measure_duration_log < 0)
+ measure_duration_log--;
+
+ SCM duration_logs_list = me->get_property ("usable-duration-logs");
+ int closest_list_elt = -15; // -15 is out of range.
+
+ for (int i = 0; i < scm_to_int (scm_length (duration_logs_list)); i++)
+ {
+ int list_elt = scm_to_int (scm_list_ref (duration_logs_list, scm_from_int (i)));
+ int shortest_distance = abs (measure_duration_log - closest_list_elt);
+ int distance = abs (measure_duration_log - list_elt);
+ if (distance < shortest_distance)
+ closest_list_elt = list_elt;
+ }
+
+ return closest_list_elt;
+}
+
Stencil
Multi_measure_rest::symbol_stencil (Grob *me, Real space)
{
Real staff_space = Staff_symbol_referencer::staff_space (me);
Font_metric *musfont = Font_interface::get_default_font (me);
+ int mdl = measure_duration_log (me);
- SCM sml = me->get_property ("use-breve-rest");
if (measures == 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);
+ Stencil s = musfont->find_by_name (Rest::glyph_name (me, mdl, "", true));
+ if (mdl == 0 && Staff_symbol_referencer::get_position (me) == 0.0)
+ s.translate_axis (staff_space, Y_AXIS);
- return s;
- }
+ s.translate_axis ((space - s.extent (X_AXIS).length ()) / 2, X_AXIS);
+ return s;
}
else
return church_rest (me, musfont, measures, space);
{
SCM mols = SCM_EOL;
- /* See Wanske pp. 125 */
int l = measures;
int count = 0;
Real symbols_width = 0.0;
-
- bool use_breve = to_boolean (me->get_property ("use-breve-rest"));
+ SCM duration_logs_list = me->get_property ("usable-duration-logs");
+ int longest_church_rest = 10; // 10 is out of range.
+ for (int i = 0; i < scm_to_int (scm_length (duration_logs_list)); i++)
+ {
+ longest_church_rest = min (longest_church_rest,
+ scm_to_int (scm_list_ref (duration_logs_list,
+ scm_from_int (i))));
+ }
while (l)
+ {
+ int k;
+ int i = longest_church_rest - 1;
+ int length;
+ int mdl = measure_duration_log (me);
+
+ do
+ {
+ i++;
+ length = int (pow (2, -i));
+ }
+ while (i <= 0 &&
+ !(l >= length && mdl >= longest_church_rest - i));
+
+ l -= length;
+ k = mdl + i;
+
+ Stencil r (musfont->find_by_name ("rests." + to_string (k)));
+ if (k == 0)
{
- 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);
- }
- 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++;
+ 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++;
+ }
/* Make outer padding this much bigger. */
Real outer_padding_factor = 1.5;
"hair-thickness "
"measure-count "
"minimum-length "
+ "round-to-longer-rest "
"spacing-pair "
"thick-thickness "
- "use-breve-rest "
+ "usable-duration-logs "
);
(rotation ,list? "Number of degrees to rotate this object, and
what point to rotate around. For example, @code{#'(45 0 0)} rotates
by 45 degrees around the center of this object.")
+ (round-to-longer-rest ,boolean? "Displays the longer multi-measure
+rest when the length of a measure is between two values of
+@code{usable-duration-logs}. For example, displays a breve instead of a whole
+in a 3/2 measure.")
;;
polyphonic patterns.")
(used ,boolean? "If set, this spacing column is kept in the
spacing problem.")
+ (usable-duration-logs ,list? "List of @code{duration-log}s that
+can be used in typesetting the grob.")
;;
(system-Y-offset ,number? "The Y-offset (relative to the bottom of the
top-margin of the page) of the system to which this staff belongs.")
- (use-breve-rest ,boolean? "Use breve rests for measures longer
-than a whole rest.")
;;;;;;;;;;;;;;;;
;; ancient notation
projects / lilypond.git / commitdiff