#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 (Cons<Atom> * ptr = atom_list_; ptr; ptr = ptr->next_)
+ for (CELLTYPE ptr = atom_list_; ptr != MOL_EOL; ptr = NEXT_CELL(ptr))
{
- ptr->car_->off_ += o;
+ UNBOX_ATOM(UNBOX_PTR(ptr))->off_ += o;
}
- dim_.translate (o);
+ if (!empty_b ())
+ dim_.translate (o);
}
void
Molecule::translate_axis (Real x,Axis a)
{
- for (Cons<Atom> * ptr = atom_list_; ptr; ptr = ptr->next_)
- ptr->car_->off_[a] += x;
+ for (CELLTYPE ptr = atom_list_; ptr != MOL_EOL; ptr = NEXT_CELL(ptr))
+ UNBOX_ATOM (UNBOX_PTR(ptr))->off_[a] += x;
- dim_[a] += x;
+ if (!dim_[a].empty_b ())
+ dim_[a] += x;
}
void
Molecule::add_molecule (Molecule const &m)
{
- Cons_list<Atom> al;
- copy_killing_cons_list (al, m.atom_list_);
-
- if (al.head_)
- {
- *al.tail_ = atom_list_;
- atom_list_ = al.head_;
- al.head_ =0;
- }
+ for (CELLTYPE ptr = m.atom_list_; ptr != MOL_EOL; ptr = NEXT_CELL(ptr))
+ add_atom(UNBOX_ATOM (UNBOX_PTR(ptr)));
+
dim_.unite (m.dim_);
}
{
Atom *a = new Atom(*al);
- atom_list_ = new Killing_cons<Atom> (a, atom_list_);
+ atom_list_ = NEWCELL(BOX_ATOM(a), atom_list_);
}
void
Molecule::operator=(Molecule const & src)
{
if (&src == this) return;
+
+#ifndef ATOM_SMOB
delete atom_list_;
- atom_list_ = 0;
+#endif
+
+ atom_list_ = MOL_EOL;
dim_= src.dim_;
add_molecule (src);
}
+void
+Molecule::set_empty (bool e)
+{
+ if (e)
+ {
+ dim_[X_AXIS].set_empty ();
+ dim_[Y_AXIS].set_empty ();
+ }
+ else
+ {
+ dim_[X_AXIS] = Interval(0,0);
+ dim_[Y_AXIS] = Interval (0,0);
+ }
+}
+
Molecule::Molecule (Molecule const &s)
{
- atom_list_ = 0;
+ atom_list_ = MOL_EOL;
+ set_empty (true);
add_molecule (s);
}
Molecule::~Molecule ()
{
+#ifndef ATOM_SMOB
delete atom_list_;
+#endif
}
void
}
void
-Molecule::do_center (Axis a)
+Molecule::align_to (Axis a, Direction d)
{
- Interval i (extent (a));
- translate_axis (-i.center (), a);
+ if (d == CENTER)
+ {
+ Interval i (extent (a));
+ translate_axis (-i.center (), a);
+ }
+ else
+ {
+ translate_axis (-extent (a)[d], a);
+ }
}
Molecule::Molecule ()
{
- dim_ = Box (Interval(0,0),Interval( 0,0 ));
- atom_list_ = 0;
+ dim_[X_AXIS].set_empty ();
+ dim_[Y_AXIS].set_empty ();
+ atom_list_ = MOL_EOL;
}
void
Molecule::add_at_edge (Axis a, Direction d, Molecule const &m, Real padding)
{
- Real my_extent= dim_[a][d];
+ 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 offset = my_extent - m.extent ()[a][-d];
+ Real his_extent = i[-d];
+ Real offset = my_extent - his_extent;
Molecule toadd (m);
toadd.translate_axis (offset + d * padding, a);
add_molecule (toadd);
}
+
+bool
+Molecule::empty_b () const
+{
+ return atom_list_ == MOL_EOL;
+}