source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "molecule.hh"
#include "dimensions.hh"
#include "paper-def.hh"
#include "debug.hh"
-#include "score-column.hh"
+#include "paper-column.hh"
+#include "atom.hh"
-Crescendo::Crescendo()
+Crescendo::Crescendo ()
{
- grow_dir_ =0;
- dir_ = DOWN;
- dyn_b_drul_[LEFT] = dyn_b_drul_[RIGHT] =false;
+ set_elt_property ("dynamic-drul", gh_cons (SCM_BOOL_F, SCM_BOOL_F));
}
-Interval
-Crescendo::symbol_height() const
-{
- return get_symbol().dim_[Y_AXIS];
-}
-static Real absdyn_dim = 10 PT; // ugh
-Atom
-Crescendo::get_symbol() const
+Molecule*
+Crescendo::do_brew_molecule_p () const
{
- Real w_dim = width().length ();
- if (dyn_b_drul_[LEFT])
+ 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))
{
- w_dim -= absdyn_dim;
+Crescendo * me = (Crescendo*)this;
+ me->set_elt_property ("transparent", SCM_BOOL_T);
+ return new Molecule;
}
- if (dyn_b_drul_[RIGHT])
+
+ 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)
{
- w_dim -= absdyn_dim;
+ width -= absdyn_dim;
+ }
+ if (dynright)
+ {
+ width -= absdyn_dim;
}
- if (w_dim < 0)
+ if (width < 0)
{
- warning (_ ("crescendo") + " " + _("too small"));
- w_dim = 0;
+ warning (_ ("crescendo") + " " + _ ("too small"));
+ width = 0;
}
Drul_array<bool> broken;
Direction d = LEFT;
do {
- Score_column* s = (Score_column* )spanned_drul_[d] ; // UGH
- broken[d] = (!s->musical_b());
- } while (flip(&d) != LEFT);
+ Paper_column* s = dynamic_cast<Paper_column*>(spanned_drul_[d]); // UGH
+ broken[d] = (!s->musical_b ());
+ } while (flip (&d) != LEFT);
- bool continued = broken[(Direction)-grow_dir_];
- return Atom (lookup_l ()->hairpin (w_dim, grow_dir_ < 0, continued));
-}
+ bool continued = broken[Direction (-gd)];
+ Real height = paper_l()->get_var ("crescendo_height");
+ Real thick = paper_l ()->get_var ("crescendo_thickness");
-Molecule*
-Crescendo::brew_molecule_p() const
-{
- Molecule* m_p =0;
- Real x_off_dim=0.0;
- if (dyn_b_drul_[LEFT])
- x_off_dim += absdyn_dim;
-
- m_p = new Molecule;
- Atom s (get_symbol());
- m_p->add_atom (s);
- m_p->translate (Offset (x_off_dim, coordinate_offset_f_));
- return m_p;
+ 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_IS_TYPE_B1(Crescendo,Spanner);