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>
*/
+/*
+ ugh. Rewrite not finished yet. Still must copy atom lists.
+ */
+
+#include <math.h>
+
#include "interval.hh"
#include "string.hh"
#include "molecule.hh"
#include "atom.hh"
#include "debug.hh"
+#include "killing-cons.tcc"
+
Box
Molecule::extent() const
{
- Box b;
- for (iter_top (atoms_,c); c.ok(); c++)
- b.unite (c->extent());
- return b;
+ return dim_;
+}
+
+Interval
+Molecule::extent(Axis a) const
+{
+ return dim_[a];
}
void
Molecule::translate (Offset o)
{
- for (iter_top (atoms_,c); c.ok(); c++)
- c->translate (o);
+ if (isinf (o.length ()))
+ {
+ programming_error ("Translating infinitely. Ignore.");
+ return;
+ }
+
+ for (SCM ptr = gh_cdr (atom_list_); ptr != SCM_EOL; ptr = gh_cdr(ptr))
+ {
+ gh_set_car_x (ptr, translate_atom (o, gh_car (ptr)));
+ }
+ if (!empty_b ())
+ dim_.translate (o);
}
void
Molecule::translate_axis (Real x,Axis a)
{
- for (iter_top (atoms_,c); c.ok(); c++)
- c->translate_axis (x,a);
+ if (isinf (x))
+ {
+ programming_error ("Translating infinitely. Ignore.");
+ return;
+ }
+ for (SCM ptr = gh_cdr (atom_list_); ptr != SCM_EOL; ptr = gh_cdr(ptr))
+ {
+ gh_set_car_x (ptr, translate_atom_axis (x, a, gh_car (ptr)));
+ }
+
+ if (!dim_[a].empty_b ())
+ dim_[a] += x;
}
void
Molecule::add_molecule (Molecule const &m)
{
- for (iter_top (m.atoms_,c); c.ok(); c++)
+ for (SCM ptr = gh_cdr (m.atom_list_); ptr != SCM_EOL; ptr = gh_cdr(ptr))
{
- add_atom (**c);
+ add_atom (gh_car (ptr));
}
+ dim_.unite (m.dim_);
}
+void
+Molecule::add_atom (SCM atomsmob)
+{
+ gh_set_cdr_x (atom_list_,
+ gh_cons (atomsmob, gh_cdr (atom_list_)));
+}
+
+void
+Molecule::operator=(Molecule const & src)
+{
+ if (&src == this)
+ return;
+
+ atom_list_ = gh_cons (SCM_EOL,scm_list_copy (gh_cdr (src.atom_list_)));
+ dim_= src.dim_;
+}
void
-Molecule::add_at_edge (Axis a, Direction d, Molecule const &m)
+Molecule::set_empty (bool e)
{
- if (!atoms_.size())
+ if (e)
{
- add_molecule (m);
- return;
+ dim_[X_AXIS].set_empty ();
+ dim_[Y_AXIS].set_empty ();
+ }
+ else
+ {
+ dim_[X_AXIS] = Interval(0,0);
+ dim_[Y_AXIS] = Interval (0,0);
}
- Real offset = extent ()[a][d] - m.extent ()[a][-d];
- Molecule toadd (m);
- toadd.translate_axis (offset, a);
- add_molecule (toadd);
}
-
-
void
-Molecule::operator = (Molecule const &)
+Molecule::print () const
{
- assert (false);
+#ifndef NPRINT
+ for (SCM ptr = gh_cdr (atom_list_); ptr != SCM_EOL; ptr = gh_cdr(ptr))
+ gh_display (gh_car (ptr));
+#endif
}
Molecule::Molecule (Molecule const &s)
{
- add_molecule (s);
+ atom_list_ = gh_cons (SCM_EOL, scm_list_copy (gh_cdr (s.atom_list_)));
+ dim_ = s.dim_;
}
+Molecule::~Molecule ()
+{
+}
+
+
void
-Molecule::print() const
+Molecule::align_to (Axis a, Direction d)
{
-#ifndef NPRINT
- if (! check_debug)
- return;
- for (iter_top (atoms_,c); c.ok(); c++)
- c->print();
-#endif
+ if (d == CENTER)
+ {
+ Interval i (extent (a));
+ translate_axis (-i.center (), a);
+ }
+ else
+ {
+ translate_axis (-extent (a)[d], a);
+ }
}
+Molecule::Molecule ()
+{
+ dim_[X_AXIS].set_empty ();
+ dim_[Y_AXIS].set_empty ();
+ atom_list_ = gh_cons (SCM_EOL, SCM_EOL);
+}
+
+
void
-Molecule::add_atom (Atom const &a)
+Molecule::add_at_edge (Axis a, Direction d, Molecule const &m, Real padding)
{
- atoms_.bottom().add (new Atom (a));
+ Real my_extent= empty_b () ? 0.0 : dim_[a][d];
+ Interval i (m.extent ()[a]);
+ if (i.empty_b ())
+ programming_error ("Molecule::add_at_edge: adding empty molecule.");
+
+ Real his_extent = i[-d];
+ Real offset = my_extent - his_extent;
+ Molecule toadd (m);
+ toadd.translate_axis (offset + d * padding, a);
+ add_molecule (toadd);
}
-Molecule::Molecule (Atom const &a)
+bool
+Molecule::empty_b () const
{
- add_atom (a) ;
+ return gh_cdr (atom_list_) == SCM_EOL;
}