patch::: 1.1.38.jcn1: Cons

[lilypond.git] / lily / molecule.cc

diff --git a/lily/molecule.cc b/lily/molecule.cc
index c39082ab929cf7d8ddbf4c15ffc0fe594f7bcba7..f8743948803e1f0d3ec6b851ab08990693c520c5 100644 (file)
--- a/lily/molecule.cc
+++ b/lily/molecule.cc
@@ -3,126 +3,155 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+  (c)  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 #include "interval.hh"
-#include "dimen.hh"
 #include "string.hh"
 #include "molecule.hh"
-#include "symbol.hh"
+#include "atom.hh"
 #include "debug.hh"
-#include "tex.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_cons_p_
+#define CELLTYPE Cons<Atom>*
+#define UNBOX_ATOM(a) a
+#define UNBOX_PTR(a) a->car_p_
+#define BOX_ATOM(a) a
+#define NEWCELL(a,b) new Killing_cons<Atom>(a,b)
+#endif
 
-/* *************** */
-
-String
-Molecule::TeX_string() const
+Box
+Molecule::extent() const
 {
-    String s;
-    for(iter_top(ats,c); c.ok(); c++)
-       s+=c->TeX_string();
-    return s;
+  return dim_;
 }
 
-Box
-Molecule::extent() const
+Interval
+Molecule::extent(Axis a) const
 {
-    Box b;
-    for(iter_top(ats,c); c.ok(); c++)
-       b.unite(c->extent());
-    return b;
+  return dim_[a];
 }
 
 void
-Molecule::translate(Offset o)
+Molecule::translate (Offset o)
 {
-    for (iter_top(ats,c); c.ok(); c++)
-       c->translate(o);
+  for (CELLTYPE ptr = atom_list_; ptr != MOL_EOL; ptr = NEXT_CELL(ptr))
+    {
+      UNBOX_ATOM(UNBOX_PTR(ptr))->off_ += o;
+    }
+  dim_.translate (o);
 }
 
 void
-Molecule::add(Molecule const &m)
+Molecule::translate_axis (Real x,Axis a)
 {
-    for (iter_top(m.ats,c); c.ok(); c++) {
-       add(**c);
-    }
+  for (CELLTYPE  ptr = atom_list_; ptr != MOL_EOL; ptr = NEXT_CELL(ptr))
+    UNBOX_ATOM (UNBOX_PTR(ptr))->off_[a] += x;
+
+  dim_[a] += x;
 }
 
 void
-Molecule::add_right(Molecule const &m)
+Molecule::add_molecule (Molecule const &m)
 {
-     if (!ats.size()) {
-       add(m);
-       return;
-    }
-   Real xof=extent().x.right - m.extent().x.left;
-    Molecule toadd(m);
-    toadd.translate(Offset(xof, 0.0));
-    add(toadd);
+  for (CELLTYPE  ptr = m.atom_list_; ptr != MOL_EOL; ptr = NEXT_CELL(ptr))
+    add_atom(UNBOX_ATOM (UNBOX_PTR(ptr)));
+  
+  dim_.unite (m.dim_);
 }
 
 void
-Molecule::add_left(Molecule const &m)
+Molecule::add_atom (Atom const *al)
 {
-    if (!ats.size()) {
-       add(m);
-       return;
-    }
-    Real xof=extent().x.left - m.extent().x.right;
-    Molecule toadd(m);
-    toadd.translate(Offset(xof, 0.0));
-    add(toadd);
+  Atom *a = new Atom(*al);
+
+  atom_list_ = NEWCELL(BOX_ATOM(a), atom_list_);
 }
 
 
+
+
 void
-Molecule::add_top(Molecule const &m)
+Molecule::operator=(Molecule const & src)
 {
-      if (!ats.size()) {
-       add(m);
-       return;
-    }
-  Real yof=extent().y.right - m.extent().y.left;
-    Molecule toadd(m);
-    toadd.translate(Offset(0,yof));
-    add(toadd);
+  if (&src == this)
+  return;
+
+
+
+#ifndef ATOM_SMOB
+  delete atom_list_;
+#endif
+
+  atom_list_ = MOL_EOL;
+  dim_= src.dim_;
+  add_molecule (src);
+}
+
+Molecule::Molecule (Molecule const &s)
+{
+  atom_list_ = MOL_EOL;
+  add_molecule (s);
+}
+
+Molecule::~Molecule ()
+{
+#ifndef ATOM_SMOB
+  delete atom_list_;
+#endif
 }
 
 void
-Molecule::add_bottom(Molecule const &m)
+Molecule::print() const
 {
-    if (!ats.size()) {
-       add(m);
-       return;
-    }
-    Real yof=extent().y.left- m.extent().y.right;
-    Molecule toadd(m);
-    toadd.translate(Offset(0,yof));
-    add(toadd);
+#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::operator = (Molecule const &)
+Molecule::do_center (Axis a)
 {
-    assert(false);
+  Interval i (extent (a));
+  translate_axis (-i.center (), a);
 }
 
-Molecule::Molecule(Molecule const &s)
+Molecule::Molecule ()
 {
-    add(s);
+  dim_ = Box (Interval(0,0),Interval( 0,0  ));
+  atom_list_ = MOL_EOL;
 }
 
+
 void
-Molecule::print() const
+Molecule::add_at_edge (Axis a, Direction d, Molecule const &m, Real padding)
 {
-    for (iter_top(ats,c); c.ok(); c++)
-       c->print();
+  Real my_extent= dim_[a][d];
+  
+  Real offset = my_extent -  m.extent ()[a][-d];
+  Molecule toadd (m);
+  toadd.translate_axis (offset + d * padding, a);
+  add_molecule (toadd);
 }
 
-void
-Molecule::add(Atom const &a)
+bool
+Molecule::empty_b() const
 {
-    ats.bottom().add(new Atom(a)); 
+  return atom_list_ == MOL_EOL;
 }