/*
crescendo.cc -- implement Crescendo
- source file of the LilyPond music typesetter
+ source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "dimen.hh"
+
+#include "molecule.hh"
#include "crescendo.hh"
#include "lookup.hh"
+#include "dimensions.hh"
#include "paper-def.hh"
#include "debug.hh"
-Crescendo::Crescendo(int s)
-{
- staff_size_i_ = s;
- grow_dir_i_ =0;
- dir_i_ = -1 ;
- left_dyn_b_ = right_dyn_b_ =false;
-}
+#include "paper-column.hh"
+#include "atom.hh"
-Spanner*
-Crescendo::do_break_at(PCol*, PCol*)const
+Crescendo::Crescendo ()
{
- return new Crescendo(*this);
+ set_elt_property ("dynamic-drul", gh_cons (SCM_BOOL_F, SCM_BOOL_F));
}
+
Molecule*
-Crescendo::brew_molecule_p() const return m_p ;
+Crescendo::do_brew_molecule_p () const
{
- Real x_off_dim=0.0;
- Real absdyn_dim = 10 PT; // UGR
-
- m_p = new Molecule;
- Real w_dim = width().length();
- if ( left_dyn_b_ ) {
- w_dim -= absdyn_dim;
- x_off_dim += absdyn_dim;
+ Real absdyn_dim = paper_l ()-> get_var ("crescendo_shorten");
+ Real extra_left = get_broken_left_end_align ();
+
+ SCM dir = get_elt_property("grow-direction");
+ SCM dyns = get_elt_property ("dynamic-drul");
+
+ if (!isdir_b (dir) || !gh_pair_p (dyns))
+ {
+Crescendo * me = (Crescendo*)this;
+ me->set_elt_property ("transparent", SCM_BOOL_T);
+ return new Molecule;
+ }
+
+ Direction gd = to_dir (dir);
+
+ bool dynleft= to_boolean (gh_car (dyns));
+ bool dynright = to_boolean (gh_cdr (dyns));
+
+ if (dynleft)
+ extra_left += absdyn_dim;
+
+
+
+ Real width = spanner_length()- get_broken_left_end_align ();
+
+ if (dynleft)
+ {
+ width -= absdyn_dim;
}
- if ( right_dyn_b_ ) {
- w_dim -= absdyn_dim;
+ if (dynright)
+ {
+ width -= absdyn_dim;
}
-
- if (w_dim < 0) {
- error("Crescendo too small");
- w_dim = 0;
+
+ if (width < 0)
+ {
+ warning (_ ("crescendo") + " " + _ ("too small"));
+ width = 0;
}
- Symbol s( paper()->lookup_l()->hairpin(w_dim, grow_dir_i_ < 0) );
- m_p->add(Atom(s));
- int pos = (dir_i_ >0) ? staff_size_i_ + 4 : - 4 ;
- m_p->translate(Offset(0,pos * paper()->internote()));
+
+ Drul_array<bool> broken;
+ Direction d = LEFT;
+ do {
+ Paper_column* s = dynamic_cast<Paper_column*>(spanned_drul_[d]); // UGH
+ broken[d] = (!s->musical_b ());
+ } while (flip (&d) != LEFT);
+
+
+ bool continued = broken[Direction (-gd)];
+ Real height = paper_l()->get_var ("crescendo_height");
+ Real thick = paper_l ()->get_var ("crescendo_thickness");
+
+ const char* hairpin = (gd < 0)? "decrescendo" : "crescendo";
+ Molecule * m
+ = new Molecule;
+ m->dim_.x () = Interval (0, width);
+ m->dim_.y () = Interval (-2*height, 2*height);
+
+ SCM at = gh_list (ly_symbol2scm (hairpin),
+ gh_double2scm (thick),
+ gh_double2scm (width),
+ gh_double2scm (height),
+ gh_double2scm (continued ? height/2 : 0.0),
+ SCM_UNDEFINED);
+
+ m->add_atom (at);
+ m->translate_axis (extra_left, X_AXIS);
+ return m;
}
-IMPLEMENT_STATIC_NAME(Crescendo);
+