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>
*/
#include <string.h>
+#include <math.h>
-#include "p-score.hh"
+#include "libc-extension.hh"
+#include "group-interface.hh"
+#include "misc.hh"
+#include "paper-score.hh"
#include "paper-def.hh"
#include "lookup.hh"
#include "molecule.hh"
#include "spanner.hh"
#include "line-of-score.hh"
#include "item.hh"
-#include "p-col.hh"
+#include "paper-column.hh"
#include "molecule.hh"
#include "misc.hh"
#include "paper-outputter.hh"
+#include "dimension-cache.hh"
+#include "side-position-interface.hh"
+#include "item.hh"
-Score_element::Score_element()
+/*
+TODO:
+
+remove dynamic_cast<Spanner,Item> and put this code into respective
+ subclass.
+*/
+
+
+#define INFINITY_MSG "Infinity or NaN encountered"
+
+Score_element::Score_element(SCM basicprops)
{
- output_p_ =0;
- transparent_b_ = false;
- size_i_ = 0;
+ set_extent_callback (molecule_extent, X_AXIS);
+ set_extent_callback (molecule_extent, Y_AXIS);
+
pscore_l_=0;
+ lookup_l_ =0;
status_i_ = 0;
+ self_scm_ = SCM_EOL;
+ original_l_ = 0;
+ immutable_property_alist_ = basicprops;
+ mutable_property_alist_ = SCM_EOL;
+
+ smobify_self ();
+ set_elt_property ("dependencies", SCM_EOL);
+
+ if (get_elt_property ("interfaces") == SCM_UNDEFINED)
+ set_elt_property ("interfaces", SCM_EOL);
}
+
Score_element::Score_element (Score_element const&s)
- : Directed_graph_node (s), Graphical_element (s)
+ : dim_cache_ (s.dim_cache_)
{
- /* called from derived ctor, so most info points to the same deps
- as (Directed_graph_node&)s. Nobody points to us, so don't copy
- dependents.
- */
- copy_edges_out (s);
- output_p_ =0;
- transparent_b_ = s.transparent_b_;
+ self_scm_ = SCM_EOL;
+ original_l_ =(Score_element*) &s;
+ immutable_property_alist_ = s.immutable_property_alist_;
+ mutable_property_alist_ = SCM_EOL;
+
status_i_ = s.status_i_;
+ lookup_l_ = s.lookup_l_;
pscore_l_ = s.pscore_l_;
- size_i_ = s.size_i_;
+
+ smobify_self ();
}
+Score_element::~Score_element()
+{
+ // this goes awry when score-elements are copied...
-
+ /*
+ Kijk goed naar hoe smobify en unsmobify werken. unsmobify_self
+ is te gebruiken wanneer C++ geheugen beheer weer overneemt van
+ GUILE. --hwn */
+}
-Score_element::~Score_element()
+
+SCM
+Score_element::get_elt_property (const char *nm) const
{
- delete output_p_;
- assert (status_i_ >=0);
+ SCM sym = ly_symbol2scm (nm);
+ return get_elt_property (sym);
}
-Score_element*
-Score_element::dependency (int i) const
+SCM
+Score_element::get_elt_property (SCM sym) const
{
- return (Score_element*) get_out_edge_arr ()[i];
+ SCM s = scm_assq(sym, mutable_property_alist_);
+ if (s != SCM_BOOL_F)
+ return gh_cdr (s);
+
+ s = scm_assq (sym, immutable_property_alist_);
+ return (s == SCM_BOOL_F) ? SCM_UNDEFINED : gh_cdr (s);
}
-int
-Score_element::dependency_size () const
+/*
+ Remove the value associated with KEY, and return it. The result is
+ that a next call will yield SCM_UNDEFINED (and not the underlying
+ `basic' property.
+*/
+SCM
+Score_element::remove_elt_property (const char* key)
{
- return get_out_edge_arr ().size ();
+ SCM val = get_elt_property (key);
+ if (val != SCM_UNDEFINED)
+ set_elt_property (key, SCM_UNDEFINED);
+ return val;
}
-Score_element*
-Score_element::dependent (int i) const
+void
+Score_element::set_elt_property (const char* k, SCM v)
{
- return (Score_element*) get_in_edge_arr()[i];
+ SCM s = ly_symbol2scm (k);
+ set_elt_property (s, v);
}
-int
-Score_element::dependent_size() const
+/*
+ Puts the k, v in the immutable_property_alist_, which is convenient for
+ storing variables that are needed during the breaking process. (eg.
+ Line_of_score::rank : int )
+ */
+void
+Score_element::set_immutable_elt_property (const char*k, SCM v)
{
- return get_in_edge_arr().size ();
+ SCM s = ly_symbol2scm (k);
+ set_immutable_elt_property (s, v);
}
+void
+Score_element::set_immutable_elt_property (SCM s, SCM v)
+{
+ immutable_property_alist_ = gh_cons (gh_cons (s,v), mutable_property_alist_);
+ mutable_property_alist_ = scm_assq_remove_x (mutable_property_alist_, s);
+}
+void
+Score_element::set_elt_property (SCM s, SCM v)
+{
+ mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, s, v);
+}
Interval
-Score_element::do_width() const
+Score_element::molecule_extent (Score_element *s, Axis a)
{
- Interval r;
-
- Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
- r = m->extent().x ();
-
- if (!output_p_)
- delete m;
-
- return r;
+ Molecule m = s->get_molecule ();
+ return m.extent(a);
}
Interval
-Score_element::do_height() const
+Score_element::preset_extent (Score_element *s , Axis a)
{
- Interval r;
- Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
- r = m->extent().y ();
- if (!output_p_)
- delete m;
-
- return r;
-}
-
-
-/*
- STANDARD METHS
- */
-void
-Score_element::print() const
-{
-#ifndef NPRINT
- DOUT << classname(this) << "{\n";
- DOUT << "dets: " << dependent_size() << "dependencies: " <<
- dependency_size();
-
- Graphical_element::do_print ();
- do_print();
+ SCM ext = s->get_elt_property ((a == X_AXIS)
+ ? "extent-X"
+ : "extent-Y");
- DOUT << "}\n";
-#endif
+ if (gh_pair_p (ext))
+ {
+ Real l = gh_scm2double (gh_car (ext));
+ Real r = gh_scm2double (gh_cdr (ext));
+ l *= s->paper_l ()->get_var ("staffspace");
+ r *= s->paper_l ()->get_var ("staffspace");
+ return Interval (l, r);
+ }
+
+ return Interval ();
}
+
Paper_def*
-Score_element::paper() const
+Score_element::paper_l () const
{
- assert (pscore_l_);
- return pscore_l_->paper_l_;
+ return pscore_l_ ? pscore_l_->paper_l_ : 0;
}
-
Lookup const *
Score_element::lookup_l () const
{
- return pscore_l_->paper_l_->lookup_l (size_i_);
+ if (!lookup_l_)
+ {
+ Score_element * urg = (Score_element*)this;
+ SCM sz = urg->remove_elt_property ("fontsize");
+ int i = (gh_number_p (sz))
+ ? gh_scm2int (sz)
+ : 0;
+
+ urg->lookup_l_ = (Lookup*)pscore_l_->paper_l_->lookup_l (i);
+ }
+ return lookup_l_;
}
void
Score_element::add_processing()
{
+ assert (status_i_ >=0);
if (status_i_)
return;
status_i_ ++;
+
do_add_processing();
}
-
void
-Score_element::calculate_dependencies (int final, int busy,
- Score_element_method_pointer funcptr)
+Score_element::calculate_dependencies (int final, int busy, SCM funcname)
{
+ assert (status_i_ >=0);
+
if (status_i_ >= final)
return;
- assert (status_i_!= busy);
+ if (status_i_== busy)
+ {
+ programming_error ("Element is busy, come back later");
+ return;
+ }
+
status_i_= busy;
- for (int i=0; i < dependency_size(); i++)
- dependency (i)->calculate_dependencies (final, busy, funcptr);
+ for (SCM d= get_elt_property ("dependencies"); gh_pair_p (d); d = gh_cdr (d))
+ {
+ unsmob_element (gh_car (d))
+ ->calculate_dependencies (final, busy, funcname);
+ }
- Link_array<Score_element> extra (get_extra_dependencies());
- for (int i=0; i < extra.size(); i++)
- extra[i]->calculate_dependencies (final, busy, funcptr);
+ // ughugh.
+ String s = ly_symbol2string (funcname);
+ SCM proc = get_elt_property (s.ch_C());
+ if (gh_procedure_p (proc))
+ gh_call1 (proc, this->self_scm_);
- invalidate_cache (X_AXIS);
- invalidate_cache (Y_AXIS);
- (this->*funcptr)();
status_i_= final;
+
}
-void
-Score_element::output_processing ()
+Molecule
+Score_element::get_molecule () const
{
- if (transparent_b_)
- return;
- if (output_p_)
- delete output_p_;
-
- output_p_ = do_brew_molecule_p ();
- for (PCursor<Atom*> i(output_p_->atoms_); i.ok(); i++)
- {
- i->origin_l_ = this;
- }
-
- pscore_l_->outputter_l_->output_molecule (output_p_,
- absolute_offset (),
- classname(this));
+ SCM proc = get_elt_property ("molecule-callback");
+ if (gh_procedure_p (proc))
+ return create_molecule (gh_apply (proc, gh_list (this->self_scm_, SCM_UNDEFINED)));
+
+ return Molecule ();
}
+
/*
VIRTUAL STUBS
*/
-
void
Score_element::do_break_processing()
{
- handle_broken_dependencies();
}
+
void
-Score_element::do_post_processing()
+Score_element::do_add_processing()
{
}
-void
-Score_element::do_breakable_col_processing()
+
+MAKE_SCHEME_CALLBACK(Score_element,brew_molecule)
+
+/*
+ ugh.
+ */
+SCM
+Score_element::brew_molecule (SCM smob)
+{
+ Score_element * sc = unsmob_element (smob);
+ SCM glyph = sc->get_elt_property ("glyph");
+ if (gh_string_p (glyph))
+ {
+ return sc->lookup_l ()->afm_find (String (ly_scm2string (glyph))).create_scheme ();
+ }
+ else
+ {
+ return SCM_EOL;
+ }
+}
+
+
+Line_of_score *
+Score_element::line_l() const
{
- handle_prebroken_dependencies();
+ return 0;
}
void
-Score_element::do_pre_processing()
+Score_element::add_dependency (Score_element*e)
{
+ if (e)
+ {
+ Pointer_group_interface gi (this, "dependencies");
+ gi.add_element (e);
+ }
+ else
+ programming_error ("Null dependency added");
}
-void
-Score_element::do_space_processing ()
+
+
+
+/**
+ Do break substitution in S, using CRITERION. Return new value.
+ CRITERION is either a SMOB pointer to the desired line, or a number
+ representing the break direction. Do not modify SRC.
+*/
+SCM
+Score_element::handle_broken_smobs (SCM src, SCM criterion)
{
+ again:
+ Score_element *sc = unsmob_element (src);
+ if (sc)
+ {
+ if (gh_number_p (criterion))
+ {
+ Item * i = dynamic_cast<Item*> (sc);
+ Direction d = to_dir (criterion);
+ if (i && i->break_status_dir () != d)
+ {
+ Item *br = i->find_prebroken_piece (d);
+ return (br) ? br->self_scm_ : SCM_UNDEFINED;
+ }
+ }
+ else
+ {
+ Line_of_score * line
+ = dynamic_cast<Line_of_score*> (unsmob_element (criterion));
+ if (sc->line_l () != line)
+ {
+ sc = sc->find_broken_piece (line);
+
+ }
+
+ /* now: !sc || (sc && sc->line_l () == line) */
+ if (!sc)
+ return SCM_UNDEFINED;
+
+ /* now: sc && sc->line_l () == line */
+ if (!line
+ || (sc->common_refpoint (line, X_AXIS)
+ && sc->common_refpoint (line, Y_AXIS)))
+ {
+ return sc->self_scm_;
+ }
+ return SCM_UNDEFINED;
+ }
+ }
+ else if (gh_pair_p (src))
+ {
+ SCM oldcar =gh_car (src);
+ /*
+ UGH! breaks on circular lists.
+ */
+ SCM newcar = handle_broken_smobs (oldcar, criterion);
+ SCM oldcdr = gh_cdr (src);
+
+ if (newcar == SCM_UNDEFINED
+ && (gh_pair_p (oldcdr) || oldcdr == SCM_EOL))
+ {
+ /*
+ This is tail-recursion, ie.
+
+ return handle_broken_smobs (cdr, criterion);
+
+ We don't want to rely on the compiler to do this. Without
+ tail-recursion, this easily crashes with a stack overflow. */
+ src = oldcdr;
+ goto again;
+ }
+
+ SCM newcdr = handle_broken_smobs (oldcdr, criterion);
+ return gh_cons (newcar, newcdr);
+ }
+ else
+ return src;
+
+ return src;
}
void
-Score_element::do_add_processing()
+Score_element::handle_broken_dependencies()
{
+ Spanner * s= dynamic_cast<Spanner*> (this);
+ if (original_l_ && s)
+ return;
+
+ if (s)
+ {
+ for (int i = 0; i< s->broken_into_l_arr_ .size (); i++)
+ {
+ Score_element * sc = s->broken_into_l_arr_[i];
+ Line_of_score * l = sc->line_l ();
+ sc->mutable_property_alist_ =
+ handle_broken_smobs (mutable_property_alist_,
+ l ? l->self_scm_ : SCM_UNDEFINED);
+ }
+ }
+
+
+ Line_of_score *line = line_l();
+
+ if (line && common_refpoint (line, X_AXIS) && common_refpoint (line, Y_AXIS))
+ {
+ mutable_property_alist_
+ = handle_broken_smobs (mutable_property_alist_,
+ line ? line->self_scm_ : SCM_UNDEFINED);
+ }
+ else if (dynamic_cast <Line_of_score*> (this))
+ {
+ mutable_property_alist_ = handle_broken_smobs (mutable_property_alist_,
+ SCM_UNDEFINED);
+ }
+ else
+ {
+ /*
+ This element is `invalid'; it has been removed from all
+ dependencies, so let's junk the element itself.
+
+ do not do this for Line_of_score, since that would remove
+ references to the originals of score-elts, which get then GC'd
+ (a bad thing.)
+ */
+ suicide();
+ }
}
+/*
+ Note that we still want references to this element to be
+ rearranged, and not silently thrown away, so we keep pointers
+ like {broken_into_{drul,array}, original}
+*/
void
-Score_element::do_substitute_dependency (Score_element*,Score_element*)
+Score_element::suicide ()
{
+ mutable_property_alist_ = SCM_EOL;
+ immutable_property_alist_ = SCM_EOL;
+ set_extent_callback (0, Y_AXIS);
+ set_extent_callback (0, X_AXIS);
+
+ for (int a= X_AXIS; a <= Y_AXIS; a++)
+ {
+ dim_cache_[a].off_callbacks_.clear ();
+ }
}
+
void
-Score_element::do_substitute_dependent (Score_element*,Score_element*)
+Score_element::handle_prebroken_dependencies()
{
}
-void
-Score_element::do_unlink()
+Score_element*
+Score_element::find_broken_piece (Line_of_score*) const
{
+ return 0;
}
void
-Score_element::do_junk_links()
+Score_element::translate_axis (Real y, Axis a)
+{
+ if (isinf (y) || isnan (y))
+ programming_error (_(INFINITY_MSG));
+ else
+ {
+ dim_cache_[a].offset_ += y;
+ }
+}
+
+Real
+Score_element::relative_coordinate (Score_element const*refp, Axis a) const
{
+ if (refp == this)
+ return 0.0;
+
+ /*
+ We catch PARENT_L_ == nil case with this, but we crash if we did
+ not ask for the absolute coordinate (ie. REFP == nil.)
+
+ */
+ if (refp == dim_cache_[a].parent_l_)
+ return get_offset (a);
+ else
+ return get_offset (a) + dim_cache_[a].parent_l_->relative_coordinate (refp, a);
}
+Real
+Score_element::get_offset (Axis a) const
+{
+ Score_element *me = (Score_element*) this;
+ while (dim_cache_[a].off_callbacks_.size ())
+ {
+ Offset_callback c = dim_cache_[a].off_callbacks_[0];
+ me->dim_cache_[a].off_callbacks_.del (0);
+ Real r = (*c) (me,a );
+ if (isinf (r) || isnan (r))
+ {
+ r = 0.0;
+ programming_error (INFINITY_MSG);
+ }
+ me->dim_cache_[a].offset_ +=r;
+ }
+ return dim_cache_[a].offset_;
+}
-Molecule*
-Score_element::do_brew_molecule_p() const
+Interval
+Score_element::point_dimension_callback (Score_element* , Axis)
{
- Atom a (lookup_l ()->fill (Box (Interval (0,0), Interval (0,0))));
- return new Molecule (a);
+ return Interval (0,0);
}
+bool
+Score_element::empty_b (Axis a)const
+{
+ return !dim_cache_[a].extent_callback_l_;
+}
-Line_of_score *
-Score_element::line_l() const
+Interval
+Score_element::extent (Axis a) const
+{
+ Dimension_cache * d = (Dimension_cache *)&dim_cache_[a];
+ if (!d->extent_callback_l_)
+ {
+ d->dim_.set_empty ();
+ }
+ else if (!d->valid_b_)
+ {
+ d->dim_= (*d->extent_callback_l_ ) ((Score_element*)this, a);
+ d->valid_b_ = true;
+ }
+
+ Interval ext = d->dim_;
+
+ if (empty_b (a))
+ return ext;
+
+ SCM extra = get_elt_property (a == X_AXIS
+ ? "extra-extent-X"
+ : "extra-extent-Y");
+
+ /*
+ signs ?
+ */
+ Real s = paper_l ()->get_var ("staffspace");
+ if (gh_pair_p (extra))
+ {
+ ext[BIGGER] += s * gh_scm2double (gh_cdr (extra));
+ ext[SMALLER] += s * gh_scm2double (gh_car (extra));
+ }
+
+ extra = get_elt_property (a == X_AXIS
+ ? "minimum-extent-X"
+ : "minimum-extent-Y");
+ if (gh_pair_p (extra))
+ {
+ ext.unite (Interval (s * gh_scm2double (gh_car (extra)),
+ s * gh_scm2double (gh_cdr (extra))));
+ }
+
+ return ext;
+}
+
+
+Score_element*
+Score_element::parent_l (Axis a) const
{
+ return dim_cache_[a].parent_l_;
+}
+
+Score_element *
+Score_element::common_refpoint (Score_element const* s, Axis a) const
+{
+ /*
+ I don't like the quadratic aspect of this code, but I see no other
+ way. The largest chain of parents might be 10 high or so, so
+ it shouldn't be a real issue. */
+ for (Score_element const *c = this; c; c = c->dim_cache_[a].parent_l_)
+ for (Score_element const * d = s; d; d = d->dim_cache_[a].parent_l_)
+ if (d == c)
+ return (Score_element*)d;
+
return 0;
}
-/*
-
- DEPENDENCIES
- */
+Score_element *
+Score_element::common_refpoint (SCM elist, Axis a) const
+{
+ Score_element * common = (Score_element*) this;
+ for (; gh_pair_p (elist); elist = gh_cdr (elist))
+ {
+ Score_element * s = unsmob_element (gh_car (elist));
+ if (s)
+ common = common->common_refpoint (s, a);
+ }
-void
-Score_element::remove_dependency (Score_element*e)
+ return common;
+}
+
+char const *
+Score_element::name () const
{
- remove_edge_out (e);
- substitute_dependency (e, 0);
+ return classname (this);
}
void
-Score_element::add_dependency (Score_element*e)
+Score_element::add_offset_callback (Offset_callback cb, Axis a)
{
- Directed_graph_node::add_edge (e);
+ dim_cache_[a].off_callbacks_.push (cb);
+}
+
+bool
+Score_element::has_extent_callback_b (Extent_callback cb, Axis a)const
+{
+ return cb == dim_cache_[a].extent_callback_l_;
+}
+
+bool
+Score_element::has_offset_callback_b (Offset_callback cb, Axis a)const
+{
+ for (int i= dim_cache_[a].off_callbacks_.size (); i--;)
+ {
+ if (dim_cache_[a].off_callbacks_[i] == cb)
+ return true;
+ }
+ return false;
}
+
void
-Score_element::substitute_dependency (Score_element* old, Score_element* new_l)
+Score_element::set_extent_callback (Dim_cache_callback dc, Axis a)
{
- do_substitute_dependency (old,new_l);
- old->do_substitute_dependent (this, 0);
+ dim_cache_[a].extent_callback_l_ = dc ;
}
+
void
-Score_element::handle_broken_dependencies()
+Score_element::set_parent (Score_element *g, Axis a)
{
- Line_of_score *line = line_l();
- if (!line)
- return;
+ dim_cache_[a].parent_l_ = g;
+}
- Link_array<Score_element> remove_us_arr;
- for (int i=0; i < dependency_size(); i++)
+MAKE_SCHEME_CALLBACK(Score_element,fixup_refpoint);
+SCM
+Score_element::fixup_refpoint (SCM smob)
+{
+ Score_element *me = unsmob_element (smob);
+ for (int a = X_AXIS; a < NO_AXES; a ++)
{
- Score_element * elt = dependency (i);
- if (elt->line_l() != line)
+ Axis ax = (Axis)a;
+ Score_element * parent = me->parent_l (ax);
+
+ if (!parent)
+ continue;
+
+ if (parent->line_l () != me->line_l () && me->line_l ())
{
- if (Spanner *sp = dynamic_cast<Spanner *> (elt))
- {
- Spanner * broken = sp->find_broken_piece (line);
- substitute_dependency (sp, broken);
+ Score_element * newparent = parent->find_broken_piece (me->line_l ());
+ me->set_parent (newparent, ax);
+ }
- add_dependency (broken);
- }
- else if (Item *original = dynamic_cast <Item *> (elt))
+ if (Item * i = dynamic_cast<Item*> (me))
+ {
+ Item *parenti = dynamic_cast<Item*> (parent);
+
+ if (parenti && i)
{
- Item * my_item = original->find_prebroken_piece (line);
-
- substitute_dependency (elt, my_item);
- if (my_item)
- add_dependency (my_item);
+ Direction my_dir = i->break_status_dir () ;
+ if (my_dir!= parenti->break_status_dir())
+ {
+ Item *newparent = parenti->find_prebroken_piece (my_dir);
+ me->set_parent (newparent, ax);
+ }
}
- remove_us_arr.push (elt);
}
}
-
- remove_us_arr.default_sort();
- remove_us_arr.uniq();
- for (int i=0; i <remove_us_arr.size(); i++)
- remove_dependency (remove_us_arr[i]);
+ return smob;
}
-/*
- This sux.
- unlike with spanners, the number of items can increase
- span: item1
+/****************************************************
+ SMOB funcs
+ ****************************************************/
- becomes
+#include "ly-smobs.icc"
- span: item1 item2 item3
+IMPLEMENT_UNSMOB(Score_element, element);
+IMPLEMENT_SMOBS(Score_element);
- How to let span (a derived class) know that this happened?
- */
-void
-Score_element::handle_prebroken_dependencies()
+SCM
+Score_element::mark_smob (SCM ses)
{
- Link_array<Score_element> old_arr, new_arr;
-
- for (int i=0; i < dependency_size(); i++)
+ Score_element * s = SMOB_TO_TYPE (Score_element, ses);
+ if (s->self_scm_ != ses)
{
- Score_element * elt = dependency (i);
- Item *it_l = dynamic_cast <Item *> (elt);
- if (it_l && it_l->breakable_b_)
- if (Item *me = dynamic_cast<Item*> (this) )
- {
- Score_element *new_l = it_l->find_prebroken_piece (me->break_status_dir_);
- if (new_l != elt)
- {
- new_arr.push (new_l);
- old_arr.push (elt);
- }
- }
- else
- {
- new_arr.push (it_l->broken_to_drul_[LEFT]);
- old_arr.push (0);
- old_arr.push (0);
- new_arr.push (it_l->broken_to_drul_[RIGHT]);
- }
+ programming_error ("SMOB marking gone awry");
+ return SCM_EOL;
}
-
- for (int i=0; i < old_arr.size(); i++)
- if (old_arr[i])
- substitute_dependency (old_arr[i], new_arr[i]);
+ scm_gc_mark ( s->immutable_property_alist_);
+
+ s->do_derived_mark ();
+ if (s->parent_l (Y_AXIS))
+ scm_gc_mark (s->parent_l (Y_AXIS)->self_scm_);
+ if (s->parent_l (X_AXIS))
+ scm_gc_mark (s->parent_l (X_AXIS)->self_scm_);
+
+ return s->mutable_property_alist_;
}
-void
-Score_element::handle_prebroken_dependents()
+int
+Score_element::print_smob (SCM s, SCM port, scm_print_state *)
{
-}
+ Score_element *sc = (Score_element *) gh_cdr (s);
+
+ scm_puts ("#<Score_element ", port);
+ scm_puts ((char *)sc->name (), port);
+ /*
+ don't try to print properties, that is too much hassle.
+ */
+ scm_puts (" >", port);
+ return 1;
+}
void
-Score_element::junk_links ()
+Score_element::do_derived_mark ()
{
- Directed_graph_node::junk_links();
- Graphical_element::junk_links ();
- do_junk_links();
}
void
-Score_element::unlink()
+Score_element::do_smobify_self ()
+{
+}
+
+SCM
+Score_element::equal_p (SCM a, SCM b)
+{
+ return gh_cdr(a) == gh_cdr(b) ? SCM_BOOL_T : SCM_BOOL_F;
+}
+
+
+SCM
+ly_set_elt_property (SCM elt, SCM sym, SCM val)
+{
+ Score_element * sc = unsmob_element (elt);
+
+ if (!gh_symbol_p (sym))
+ {
+ error ("Not a symbol");
+ ly_display_scm (sym);
+ return SCM_UNDEFINED;
+ }
+
+ if (sc)
+ {
+ sc->set_elt_property (sym, val);
+ }
+ else
+ {
+ error ("Not a score element");
+ ly_display_scm (elt);
+ }
+
+ return SCM_UNDEFINED;
+}
+
+
+SCM
+ly_get_elt_property (SCM elt, SCM sym)
{
- do_unlink();
- while (dependency_size())
+ Score_element * sc = unsmob_element (elt);
+
+ if (sc)
{
- do_substitute_dependency (dependency (0),0);
- remove_edge_out_idx (0);
+ return sc->get_elt_property (sym);
}
- while (dependent_size())
+ else
{
- dependent (0)->remove_dependency (this);
+ error ("Not a score element");
+ ly_display_scm (elt);
}
- Graphical_element::unlink ();
+ return SCM_UNDEFINED;
}
-Link_array<Score_element>
-Score_element::get_extra_dependencies() const
+void
+Score_element::discretionary_processing()
{
- Link_array<Score_element> empty;
- return empty;
+}
+
+
+
+SCM
+spanner_get_bound (SCM slur, SCM dir)
+{
+ return dynamic_cast<Spanner*> (unsmob_element (slur))->get_bound (to_dir (dir))->self_scm_;
+}
+
+
+
+static SCM interfaces_sym;
+
+static void
+init_functions ()
+{
+ interfaces_sym = scm_permanent_object (ly_symbol2scm ("interfaces"));
+
+ scm_make_gsubr ("ly-get-elt-property", 2, 0, 0, (SCM(*)(...))ly_get_elt_property);
+ scm_make_gsubr ("ly-set-elt-property", 3, 0, 0, (SCM(*)(...))ly_set_elt_property);
+ scm_make_gsubr ("ly-get-spanner-bound", 2 , 0, 0, (SCM(*)(...)) spanner_get_bound);
}
bool
-Score_element::linked_b() const
+Score_element::has_interface (SCM k)
{
- return get_extra_dependencies().size() ||
- dependency_size();
+ if (mutable_property_alist_ == SCM_EOL)
+ return false;
+
+ SCM ifs = get_elt_property (interfaces_sym);
+
+ return scm_memq (k, ifs) != SCM_BOOL_F;
}
+
+void
+Score_element::set_interface (SCM k)
+{
+ if (has_interface (k))
+ return ;
+ else
+ {
+ set_elt_property (interfaces_sym,
+ gh_cons (k, get_elt_property (interfaces_sym)));
+ }
+}
+
+
+ADD_SCM_INIT_FUNC(scoreelt, init_functions);
+
projects / lilypond.git / blobdiff