source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include <math.h>
#include "interval.hh"
#include "string.hh"
#include "molecule.hh"
#include "atom.hh"
#include "debug.hh"
-
#include "killing-cons.tcc"
-#ifdef ATOM_SMOB
-#define MOL_EOL SCM_EOL
-#define NEXT_CELL(a) SCM_CDR(a)
-#define CELLTYPE SCM
-#define UNBOX_ATOM(a) Atom::atom_l (a)
-#define BOX_ATOM(a) a->make_smob ()
-#define NEWCELL(a,b) gh_cons (a,b)
-#define UNBOX_PTR(a) SCM_CAR(a)
-#else
-#define MOL_EOL 0
-#define NEXT_CELL(a) ptr->next_
-#define CELLTYPE Cons<Atom>*
-#define UNBOX_ATOM(a) a
-#define UNBOX_PTR(a) a->car_
-#define BOX_ATOM(a) a
-#define NEWCELL(a,b) new Killing_cons<Atom>(a,b)
-#endif
Box
Molecule::extent() const
void
Molecule::translate (Offset o)
{
- for (CELLTYPE ptr = atom_list_; ptr != MOL_EOL; ptr = NEXT_CELL(ptr))
+ if (isinf (o.length ()))
+ {
+ programming_error ("Translating infinitely. Ignore.");
+ return;
+ }
+
+ for (SCM ptr = gh_cdr (atom_list_); ptr != SCM_EOL; ptr = gh_cdr(ptr))
{
- UNBOX_ATOM(UNBOX_PTR(ptr))->off_ += o;
+ unsmob_atom (gh_car (ptr))->off_ += o;
}
if (!empty_b ())
dim_.translate (o);
void
Molecule::translate_axis (Real x,Axis a)
{
- for (CELLTYPE ptr = atom_list_; ptr != MOL_EOL; ptr = NEXT_CELL(ptr))
- UNBOX_ATOM (UNBOX_PTR(ptr))->off_[a] += x;
+ if (isinf (x))
+ {
+ programming_error ("Translating infinitely. Ignore.");
+ return;
+ }
+ for (SCM ptr = gh_cdr (atom_list_); ptr != SCM_EOL; ptr = gh_cdr(ptr))
+ {
+ unsmob_atom (gh_car (ptr))->off_[a] += x;
+ }
if (!dim_[a].empty_b ())
dim_[a] += x;
void
Molecule::add_molecule (Molecule const &m)
{
- for (CELLTYPE ptr = m.atom_list_; ptr != MOL_EOL; ptr = NEXT_CELL(ptr))
- add_atom(UNBOX_ATOM (UNBOX_PTR(ptr)));
-
+ for (SCM ptr = gh_cdr (m.atom_list_); ptr != SCM_EOL; ptr = gh_cdr(ptr))
+ {
+ Atom *a = new Atom (*unsmob_atom (gh_car (ptr)));
+ add_atom (a->self_scm_);
+ }
dim_.unite (m.dim_);
}
void
-Molecule::add_atom (Atom const *al)
+Molecule::add_atom (SCM atomsmob)
{
- Atom *a = new Atom(*al);
+ gh_set_cdr_x (atom_list_,
+ gh_cons (atomsmob, gh_cdr (atom_list_)));
- atom_list_ = NEWCELL(BOX_ATOM(a), atom_list_);
+ scm_unprotect_object (atomsmob);
}
void
Molecule::operator=(Molecule const & src)
{
- if (&src == this) return;
-
-#ifndef ATOM_SMOB
- delete atom_list_;
-#endif
+ if (&src == this)
+ return;
- atom_list_ = MOL_EOL;
+ atom_list_ = gh_cons (SCM_EOL,SCM_EOL);
dim_= src.dim_;
add_molecule (src);
}
}
}
+void
+Molecule::print () const
+{
+#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)
{
- atom_list_ = MOL_EOL;
+ atom_list_ = gh_cons (SCM_EOL, SCM_EOL);
set_empty (true);
add_molecule (s);
}
Molecule::~Molecule ()
{
-#ifndef ATOM_SMOB
- delete atom_list_;
-#endif
}
-void
-Molecule::print() const
-{
-#ifndef NPRINT
- if (! check_debug)
- return;
- DOUT << "dim:";
- for (Axis i=X_AXIS; i < NO_AXES; incr (i))
- DOUT << axis_name_str (i) << " = " << dim_[i].str ();
-#endif
-}
void
Molecule::align_to (Axis a, Direction d)
{
dim_[X_AXIS].set_empty ();
dim_[Y_AXIS].set_empty ();
- atom_list_ = MOL_EOL;
+ atom_list_ = gh_cons (SCM_EOL, SCM_EOL);
}
bool
Molecule::empty_b () const
{
- return atom_list_ == MOL_EOL;
+ return gh_cdr (atom_list_) == SCM_EOL;
}