source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@stack.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 "font-metric.hh"
+#include "dimensions.hh"
#include "interval.hh"
-#include "dimen.hh"
#include "string.hh"
#include "molecule.hh"
-#include "atom.hh"
+
#include "debug.hh"
-#include "tex.hh"
+#include "killing-cons.tcc"
-String
-Molecule::TeX_string() const
-{
- String s;
- for (iter_top (ats,c); c.ok(); c++)
- s+=c->TeX_string();
- return s;
-}
Box
Molecule::extent() const
{
- Box b;
- for (iter_top (ats,c); c.ok(); c++)
- b.unite (c->extent());
- return b;
+ return dim_;
}
-void
-Molecule::translate (Offset o)
+Interval
+Molecule::extent(Axis a) const
{
- for (iter_top (ats,c); c.ok(); c++)
- c->translate (o);
+ return dim_[a];
}
-void
-Molecule::translate_axis (Real x,Axis a)
+Molecule::Molecule (Box b, SCM func)
{
- for (iter_top (ats,c); c.ok(); c++)
- c->translate_axis (x,a);
+ expr_ = func;
+ dim_ = b ;
+}
+
+Molecule::Molecule()
+{
+ expr_ = SCM_EOL;
+ set_empty (true);
}
void
-Molecule::add (Molecule const &m)
+Molecule::translate (Offset o)
{
- for (iter_top (m.ats,c); c.ok(); c++)
+ Axis a = X_AXIS;
+ while (a < NO_AXES)
{
- add (**c);
+ if (abs(o[a]) > 30 CM
+ || isinf (o[a]) || isnan (o[a]))
+ {
+ programming_error ("Improbable offset for translation: setting to zero");
+ o[a] = 0.0;
+ }
+ incr (a);
}
+
+ expr_ = gh_list (ly_symbol2scm ("translate-molecule"),
+ to_scm (o),
+ expr_, SCM_UNDEFINED);
+ if (!empty_b ())
+ dim_.translate (o);
}
+
+
+void
+Molecule::translate_axis (Real x,Axis a)
+{
+ Offset o(0,0);
+ o[a] = x;
+ translate (o);
+}
+
void
-Molecule::add_at_edge (Axis a, Direction d, Molecule const &m)
+Molecule::add_molecule (Molecule const &m)
{
- if (!ats.size())
+ expr_ = gh_list (ly_symbol2scm ("combine-molecule"),
+ m.expr_,
+ expr_, SCM_UNDEFINED);
+ dim_.unite (m.dim_);
+}
+
+void
+Molecule::set_empty (bool e)
+{
+ if (e)
{
- add (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 (toadd);
}
-
-
void
-Molecule::operator = (Molecule const &)
+Molecule::print () const
{
- assert (false);
+#ifndef NPRINT
+ gh_display (expr_);
+#endif
}
-Molecule::Molecule (Molecule const &s)
+void
+Molecule::align_to (Axis a, Direction d)
{
- add (s);
+ Interval i (extent (a));
+ Real r = (d == CENTER) ? i.center () : i[d];
+ translate_axis (-r, a);
}
+
void
-Molecule::print() const
+Molecule::add_at_edge (Axis a, Direction d, Molecule const &m, Real padding)
{
-#ifndef NPRINT
- if (! check_debug)
- return;
- for (iter_top (ats,c); c.ok(); c++)
- c->print();
-#endif
+ 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);
}
-void
-Molecule::add (Atom const &a)
+bool
+Molecule::empty_b () const
+{
+ return expr_ == SCM_EOL;
+}
+
+
+SCM
+fontify_atom(Font_metric * met, SCM f)
{
- ats.bottom().add (new Atom (a));
+ return gh_list (ly_symbol2scm ("fontify"),
+ ly_quote_scm (met->description ()), f, SCM_UNDEFINED);
}