source file of the GNU LilyPond music typesetter
- (c) 1998--1999 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2004 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "multi-measure-rest.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "paper-def.hh"
#include "paper-column.hh" // urg
-#include "bar.hh"
-#include "lookup.hh"
+#include "font-interface.hh"
#include "rest.hh"
#include "molecule.hh"
#include "misc.hh"
-#include "group-interface.hh"
-#include "stem.hh"
-
-Multi_measure_rest::Multi_measure_rest ()
-{
- measures_i_ = 0;
- set_elt_property ("columns", SCM_EOL);
-}
+#include "spanner.hh"
+#include "staff-symbol-referencer.hh"
+#include "text-item.hh"
+#include "percent-repeat-item.hh"
+#include "lookup.hh"
+#include "separation-item.hh"
-void
-Multi_measure_rest::do_print () const
+MAKE_SCHEME_CALLBACK (Multi_measure_rest,percent,1);
+SCM
+Multi_measure_rest::percent (SCM smob)
{
-#ifndef NPRINT
- DEBUG_OUT << "measures_i_ " << measures_i_;
-#endif
-}
-
-
+ Grob *me = unsmob_grob (smob);
+ Spanner *sp = dynamic_cast<Spanner*> (me);
+
+ Molecule r = Percent_repeat_item_interface::x_percent (me, 1, 0.75, 1.6);
-/*
- [TODO] 17
- * variable-sized multi-measure rest symbol: |====| ??
-
- * build 3, 5, 6, 7, 8 symbols (how far, property?)
- from whole, brevis and longa rests
-
-*/
-Molecule*
-Multi_measure_rest::do_brew_molecule_p () const
-{
+ // ugh copy & paste.
+
Interval sp_iv;
Direction d = LEFT;
do
{
- Item * col = spanned_drul_[d]->column_l ();
+ Item * col = sp->get_bound (d)->get_column ();
- Interval coldim = col->extent (X_AXIS)
- + col->relative_coordinate (0, X_AXIS);
+ Interval coldim = col->extent (0, X_AXIS);
sp_iv[d] = coldim[-d] ;
}
while ((flip (&d)) != LEFT);
- Molecule *mol_p = new Molecule;
Real x_off = 0.0;
- Real rx = spanned_drul_[LEFT]->relative_coordinate (0, X_AXIS);
+ Real rx = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS);
/*
we gotta stay clear of sp_iv, so move a bit to the right if
needed.
*/
x_off += sp_iv.length ()/ 2;
+ r.translate_axis (x_off,X_AXIS);
+
- Molecule s;
- bool rest_symbol=true;
- SCM alt_symbol_sym =get_elt_property ("alt-symbol");
- if (alt_symbol_sym != SCM_UNDEFINED)
+ return r.smobbed_copy ();
+}
+
+MAKE_SCHEME_CALLBACK (Multi_measure_rest,brew_molecule,1);
+SCM
+Multi_measure_rest::brew_molecule (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ Spanner * sp = dynamic_cast<Spanner*> (me);
+
+ Interval sp_iv;
+ Direction d = LEFT;
+
+ Grob *common = sp->get_bound (LEFT)->common_refpoint (sp->get_bound (RIGHT), X_AXIS);
+ do
{
- s = lookup_l () -> afm_find (ly_scm2string (alt_symbol_sym));
- rest_symbol = false;
+ Item * b = sp->get_bound (d);
+
+ Interval coldim = (Separation_item::has_interface (b))
+ ? Separation_item::relative_width (b, common)
+ : b->extent (common, X_AXIS);
+
+ sp_iv[d] = coldim.is_empty () ? b->relative_coordinate (common, X_AXIS) : coldim[-d];
}
- else if (measures_i_ == 1 || measures_i_ == 2 || measures_i_ == 4)
+ while ((flip (&d)) != LEFT);
+
+ Real space = sp_iv.length();
+
+ Real rx = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS);
+ /*
+ we gotta stay clear of sp_iv, so move a bit to the right if
+ needed.
+ */
+ Real x_off = (sp_iv[LEFT] - rx) >? 0;
+
+
+ Molecule mol;
+ mol.add_molecule (symbol_molecule (me, space));
+
+ int measures = 0;
+ SCM m (me->get_grob_property ("measure-count"));
+ if (gh_number_p (m))
{
- s = lookup_l ()->afm_find ("rests-" + to_str (- intlog2(measures_i_)));
- s.translate_axis (-s.extent ()[X_AXIS].length () / 2, X_AXIS);
+ measures = gh_scm2int (m);
}
- else
+
+ mol.translate_axis (x_off, X_AXIS);
+ return mol.smobbed_copy ();
+}
+
+
+
+Molecule
+Multi_measure_rest::symbol_molecule (Grob *me, Real space)
+{
+ int measures = 0;
+ SCM m (me->get_grob_property ("measure-count"));
+ if (gh_number_p (m))
{
- String idx = ("rests-") + to_str (-4);
- s = lookup_l ()->afm_find (idx);
+ measures = gh_scm2int (m);
}
+ if (measures <= 0)
+ return Molecule();
- mol_p->add_molecule (s);
- Real interline_f = staff_line_leading_f ();
- if (measures_i_ == 1 && rest_symbol)
+
+ SCM limit = me->get_grob_property ("expand-limit");
+ if (measures > gh_scm2int (limit))
{
- mol_p->translate_axis (interline_f, Y_AXIS);
+ Real padding = 0.15;
+ Molecule s = big_rest (me, (1.0 - 2*padding) * space);
+ s.translate_axis (padding * space, X_AXIS);
+ return s;
}
- else if (measures_i_ > 1)
+
+ SCM alist_chain = Font_interface::font_alist_chain (me);
+
+ Real staff_space = Staff_symbol_referencer::staff_space (me);
+ Font_metric *musfont
+ = select_font (me->get_paper (), alist_chain);
+
+ SCM sml = me->get_grob_property ("use-breve-rest");
+ if (measures == 1)
{
- Molecule s (lookup_l ()->text ("number", to_str (measures_i_), paper_l ()));
- s.align_to (X_AXIS, CENTER);
- s.translate_axis (3.0 * interline_f, Y_AXIS);
- mol_p->add_molecule (s);
+ if (sml == SCM_BOOL_T)
+ {
+ Molecule s = musfont->find_by_name (Rest::glyph_name (me, -1, ""));
+
+ s.translate_axis ((space - s.extent (X_AXIS).length ())/2, X_AXIS);
+
+ return s ;
+ }
+ else
+ {
+ Molecule s = musfont->find_by_name (Rest::glyph_name (me, 0, ""));
+
+ /*
+ 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 ;
+ }
+ }
+ else
+ {
+ return church_rest (me, musfont, measures, space);
}
- mol_p->translate_axis (x_off, X_AXIS);
- return mol_p;
}
+
/*
- UGH. JUNKME elt prop "columns" isn't really needed.
+ WIDTH can also be 0 to determine the minimum size of the object.
*/
+Molecule
+Multi_measure_rest::big_rest (Grob *me, Real width)
+{
+ Real thick_thick =robust_scm2double (me->get_grob_property ("thick-thickness"), 1.0);
+ Real hair_thick = robust_scm2double (me->get_grob_property ("hair-thickness"), .1);
-void
-Multi_measure_rest::do_add_processing ()
+
+ Real ss = Staff_symbol_referencer::staff_space (me);
+ Real slt = me->get_paper ()->get_realvar (ly_symbol2scm ("linethickness"));
+ Real y = slt * thick_thick/2 * ss;
+ Real ythick = hair_thick * slt * ss;
+ Box b(Interval (0, 0 >? (width - 2 * ythick)), Interval (-y, y));
+
+ Real blot = width ? (.8 * (y <? ythick)) : 0.0;
+
+ Molecule m = Lookup::round_filled_box (b, blot);
+ Molecule yb = Lookup::round_filled_box (Box (Interval (-0.5, 0.5)* ythick, Interval (-ss, ss)), blot);
+
+ m.add_at_edge (X_AXIS, RIGHT, yb, 0, 0);
+ m.add_at_edge (X_AXIS, LEFT, yb, 0, 0);
+
+ m.align_to (X_AXIS, LEFT);
+
+ return m;
+}
+
+/*
+ Kirchenpause (?)
+ */
+Molecule
+Multi_measure_rest::church_rest (Grob*me, Font_metric *musfont, int measures,
+ Real space)
{
- if (gh_pair_p (get_elt_property ("columns")))
+ SCM mols = SCM_EOL;
+
+ /*
+ see Wanske pp. 125
+ */
+ int l = measures;
+ int count = 0;
+ Real symbols_width = 0.0;
+
+ SCM sml = me->get_grob_property ("use-breve-rest");
+
+ while (l)
+ {
+ if (sml == SCM_BOOL_T)
+ {
+ int k;
+ if (l >= 2)
+ {
+ l-=2;
+ k = -2;
+ }
+ else
+ {
+ l -= 1;
+ k = -1;
+ }
+
+ Molecule r (musfont->find_by_name ("rests-" + to_string (k)));
+ symbols_width += r.extent (X_AXIS).length ();
+ mols = gh_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 --;
+ }
+
+ Molecule 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 = gh_cons (r.smobbed_copy (), mols);
+ }
+ count ++;
+ }
+
+
+
+ Real outer_padding_factor = 1.5; // make outer padding this much bigger.
+ Real inner_padding = (space - symbols_width) / (2 * outer_padding_factor + (count-1));
+ if (inner_padding < 0)
{
- Link_array<Item> column_arr (Group_interface__extract_elements (this, (Item*)0, "columns"));
-
- set_bounds (LEFT, column_arr[0 >? column_arr.size () - 2]);
- set_bounds (RIGHT, column_arr.top ());
+ inner_padding = 1.0;
}
-}
-void
-Multi_measure_rest::do_post_processing ()
-{
- if (!gh_pair_p (get_elt_property ("columns")))
- set_elt_property ("transparent", SCM_BOOL_T);
-}
+ Molecule mol;
+ for (SCM s = mols; gh_pair_p (s); s = gh_cdr(s))
+ {
+ mol.add_at_edge (X_AXIS, LEFT, *unsmob_molecule (gh_car (s)), inner_padding, 0);
+ }
+ mol.align_to (X_AXIS, LEFT);
+ mol.translate_axis (outer_padding_factor * inner_padding, X_AXIS);
+ return mol;
+}
-
void
-Multi_measure_rest::add_column (Item* c)
+Multi_measure_rest::add_column (Grob*me,Item* c)
{
- Group_interface gi (this, "columns");
- gi.add_element (c);
-
-
- add_dependency (c);
+ add_bound_item (dynamic_cast<Spanner*> (me),c);
}
-Array<Rod>
-Multi_measure_rest::get_rods () const
+MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_spacing_rods,1);
+SCM
+Multi_measure_rest::set_spacing_rods (SCM smob)
{
- Array<Rod> a;
+ Grob*me = unsmob_grob (smob);
- if (!(spanned_drul_[LEFT] && spanned_drul_[RIGHT]))
+ Spanner*sp = dynamic_cast<Spanner*> (me);
+ if (! (sp->get_bound (LEFT) && sp->get_bound (RIGHT)))
{
programming_error ("Multi_measure_rest::get_rods (): I am not spanned!");
- return a;
+ return SCM_UNSPECIFIED;
}
- Item * l = spanned_drul_[LEFT]->column_l ();
- Item * r = spanned_drul_[RIGHT]->column_l ();
- Item * lb = l->find_broken_piece (RIGHT);
- Item * rb = r->find_broken_piece (LEFT);
+ Item * l = sp->get_bound (LEFT)->get_column ();
+ Item * r = sp->get_bound (RIGHT)->get_column ();
+ Item * lb = l->find_prebroken_piece (RIGHT);
+ Item * rb = r->find_prebroken_piece (LEFT);
Item* combinations[4][2]={{l,r}, {lb,r}, {l,rb},{lb,rb}};
+
+ Real sym_width = symbol_molecule (me, 0.0).extent (X_AXIS).length ();
+
for (int i=0; i < 4; i++)
{
Item * l = combinations[i][0];
rod.item_l_drul_[LEFT] = l;
rod.item_l_drul_[RIGHT] = r;
- /*
- should do something more advanced.
- */
- rod.distance_f_ = l->extent (X_AXIS)[BIGGER] - r->extent (X_AXIS)[SMALLER]
- + paper_l ()->get_var ("mmrest_x_minimum");
+
+ rod.distance_ = l->extent (l, X_AXIS)[BIGGER] - r->extent (r, X_AXIS)[SMALLER]
+ + sym_width + 2.0; // 2.0 = magic!
- a.push (rod);
+ Real minlen = robust_scm2double (me->get_grob_property ("minimum-length"), 0.0);
+ rod.distance_ = max(rod.distance_,
+ minlen);
+ rod.add_to_cols ();
}
-
- return a;
+ return SCM_UNSPECIFIED;
}
+
+
+
+ADD_INTERFACE (Multi_measure_rest,"multi-measure-rest-interface",
+ "A rest that spans a whole number of measures.",
+ "expand-limit measure-count hair-thickness thick-thickness use-breve-rest minimum-length");
+