source file of the GNU LilyPond music typesetter
- (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2002 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "multi-measure-rest.hh"
#include "debug.hh"
#include "paper-def.hh"
-#include "lookup.hh"
+#include "paper-column.hh" // urg
+#include "font-interface.hh"
#include "rest.hh"
-#include "script.hh"
-#include "text-def.hh"
#include "molecule.hh"
+#include "misc.hh"
+#include "spanner.hh"
+#include "staff-symbol-referencer.hh"
+#include "text-item.hh"
+#include "percent-repeat-item.hh"
+#include "lookup.hh"
+
+bool
+Multi_measure_rest::has_interface (Grob*me)
+{
+ return me->has_interface (ly_symbol2scm ("multi-measure-rest-interface"));
+}
+
+MAKE_SCHEME_CALLBACK (Multi_measure_rest,percent,1);
+SCM
+Multi_measure_rest::percent (SCM smob)
+{
+ 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);
+
+ // ugh copy & paste.
+
+ Interval sp_iv;
+ Direction d = LEFT;
+ do
+ {
+ Item * col = sp->get_bound (d)->column_l ();
+
+ Interval coldim = col->extent (0, X_AXIS);
+
+ sp_iv[d] = coldim[-d] ;
+ }
+ while ((flip (&d)) != LEFT);
+ Real x_off = 0.0;
+ 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[LEFT] - rx) >? 0;
+ /*
+ center between stuff.
+ */
+ x_off += sp_iv.length ()/ 2;
+
+ r.translate_axis (x_off,X_AXIS);
-Multi_measure_rest::Multi_measure_rest ()
+
+ return r.smobbed_copy ();
+}
+
+
+/*
+ [TODO] 17
+ variable-sized multi-measure rest symbol: |====| ??
+*/
+MAKE_SCHEME_CALLBACK (Multi_measure_rest,brew_molecule,1);
+SCM
+Multi_measure_rest::brew_molecule (SCM smob)
{
- measures_i_ = 0;
+ Grob *me = unsmob_grob (smob);
+ Spanner * sp = dynamic_cast<Spanner*> (me);
+
+ SCM alist_chain = Font_interface::font_alist_chain (me);
+
+ Interval sp_iv;
+ Direction d = LEFT;
+
+ Grob *common = sp->get_bound (LEFT)->common_refpoint (sp->get_bound (RIGHT), X_AXIS);
+ do
+ {
+ Item * col = sp->get_bound (d)->column_l ();
+
+ Interval coldim = col->extent (common, X_AXIS);
+
+ sp_iv[d] = coldim[-d] ;
+ }
+ 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))
+ {
+ measures = gh_scm2int (m);
+ }
+
+ if (measures > 1)
+ {
+ Molecule s = Text_item::text2molecule (me,
+ ly_str02scm (to_str (measures).ch_C ()),
+ alist_chain);
+
+
+ s.align_to (X_AXIS, CENTER);
+ s.translate_axis (3.0, Y_AXIS);
+
+ s.translate_axis (mol.extent (X_AXIS).center (), X_AXIS);
+ mol.add_molecule (s);
+ }
+ mol.translate_axis (x_off, X_AXIS);
+ return mol.smobbed_copy ();
}
-void
-Multi_measure_rest::do_print () const
+
+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))
+ {
+ measures = gh_scm2int (m);
+ }
+
+
+ SCM limit = me->get_grob_property ("expand-limit");
+ if (measures <= 0)
+ return Molecule();
+
+ if (measures > gh_scm2int (limit))
+ {
+ Real padding = 0.15;
+ Molecule s = big_rest (me, (1.0 - 2*padding) * space);
+ s.translate_axis (padding * space, X_AXIS);
+ return s;
+ }
+
+ SCM alist_chain = Font_interface::font_alist_chain (me);
+
+ SCM style_chain =
+ Font_interface::add_style (me, ly_symbol2scm ("mmrest-symbol"),
+ alist_chain);
+
+ Real staff_space = Staff_symbol_referencer::staff_space (me);
+ Font_metric *musfont
+ = Font_interface::get_font (me,style_chain);
+
+ if (measures == 1)
+ {
+ Molecule s = musfont->find_by_name (Rest::glyph_name (me, 0, ""));
+
+ /*
+ ugh.
+ */
+ if (Staff_symbol_referencer::position_f (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);
+ }
+}
+
+
+
+Molecule
+Multi_measure_rest::big_rest (Grob *me, Real width)
{
- DOUT << "measures_i_ " << measures_i_;
+ Real thick = gh_scm2double (me->get_grob_property ("thickness"));
+ Real ss = Staff_symbol_referencer::staff_space (me);
+
+ Real slt = me->paper_l ()->get_var ("stafflinethickness");
+ Real y = slt * thick/2 * ss;
+ Box b(Interval (0, width), Interval (-y, y));
+ Real ythick = slt * ss;
+
+ Molecule m = Lookup::filledbox (b);
+ Molecule yb = Lookup::filledbox (Box (Interval (-ythick, ythick), Interval (-ss, ss)));
+
+ m.add_at_edge (X_AXIS, RIGHT, yb, -ythick);
+ m.add_at_edge (X_AXIS, LEFT, yb, -ythick);
+
+ m.align_to (X_AXIS, LEFT);
+
+ return m;
}
-Molecule*
-Multi_measure_rest::brew_molecule_p () const
+/*
+ Kirchenpause (?)
+ */
+Molecule
+Multi_measure_rest::church_rest (Grob*me, Font_metric *musfont, int measures,
+ Real space)
{
+ SCM mols = SCM_EOL;
+
/*
- [TODO] 3
- * make real multi-measure rest symbol: |---|
- * make two,four,eight-measure-rest symbols
- */
+ see Wanske pp. 125
+ */
+ int l = measures;
+ int count = 0;
+ Real symbols_width = 0.0;
+ while (l)
+ {
+ 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_str (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));
+
+ 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);
+ }
+ mol.align_to (X_AXIS, LEFT);
+ mol.translate_axis (outer_padding_factor * inner_padding, X_AXIS);
+
+ return mol;
+}
+
+void
+Multi_measure_rest::add_column (Grob*me,Item* c)
+{
+ add_bound_item (dynamic_cast<Spanner*> (me),c);
+}
+
- Atom s (lookup_l ()->rest (0, 0));
- Molecule* mol_p = new Molecule ( Atom (s));
- Real interline_f = paper ()->interline_f ();
- mol_p->translate_axis (interline_f, Y_AXIS);
+MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_spacing_rods,1);
- if (measures_i_ > 1)
+SCM
+Multi_measure_rest::set_spacing_rods (SCM smob)
+{
+ return SCM_UNSPECIFIED;
+
+ Grob*me = unsmob_grob (smob);
+
+ Spanner*sp = dynamic_cast<Spanner*> (me);
+ if (! (sp->get_bound (LEFT) && sp->get_bound (RIGHT)))
{
- Text_def text;
- text.text_str_ = to_str (measures_i_);
- text.style_str_ = "number";
- Atom s = text.get_atom (paper (), UP);
- s.translate_axis (3.0 * interline_f, Y_AXIS);
- mol_p->add_atom (s);
+ programming_error ("Multi_measure_rest::get_rods (): I am not spanned!");
+ return SCM_UNSPECIFIED;
}
- return mol_p;
+ Item * l = sp->get_bound (LEFT)->column_l ();
+ Item * r = sp->get_bound (RIGHT)->column_l ();
+ 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 staff_space = Staff_symbol_referencer::staff_space (me);
+ for (int i=0; i < 4; i++)
+ {
+ Item * l = combinations[i][0];
+ Item *r = combinations[i][1];
+
+ if (!l || !r)
+ continue;
+
+ Rod rod;
+ rod.item_l_drul_[LEFT] = l;
+ rod.item_l_drul_[RIGHT] = r;
+ rod.distance_f_ = l->extent (l, X_AXIS)[BIGGER] - r->extent (r, X_AXIS)[SMALLER]
+ + 4.0; // magic!
+
+ rod.add_to_cols ();
+ }
+ return SCM_UNSPECIFIED;
}
+
+
+ADD_INTERFACE (Multi_measure_rest,"multi-measure-rest-interface",
+ "A rest that spans a whole number of measures. For typesetting the
+numbers, fields from font-interface may be used.
+
+
+",
+ "thickness measure-count expand-limit");
projects / lilypond.git / blobdiff