#include <string.h>
+#include <math.h>
+#include "libc-extension.hh"
#include "group-interface.hh"
#include "misc.hh"
#include "paper-score.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)
{
- dim_cache_[X_AXIS] = new Dimension_cache;
- dim_cache_[Y_AXIS] = new Dimension_cache;
- dim_cache_[X_AXIS]->elt_l_ = dim_cache_[Y_AXIS]->elt_l_ = this;
-
- used_b_ = false;
+ set_extent_callback (molecule_extent, X_AXIS);
+ set_extent_callback (molecule_extent, Y_AXIS);
- dim_cache_[X_AXIS]->set_callback (molecule_extent);
- dim_cache_[Y_AXIS]->set_callback (molecule_extent);
- used_b_ = false;
pscore_l_=0;
lookup_l_ =0;
status_i_ = 0;
self_scm_ = SCM_EOL;
original_l_ = 0;
- element_property_alist_ = SCM_EOL;
+ immutable_property_alist_ = basicprops;
+ mutable_property_alist_ = SCM_EOL;
smobify_self ();
-
-
set_elt_property ("dependencies", SCM_EOL);
- set_elt_property ("interfaces", SCM_EOL);
+
+ if (get_elt_property ("interfaces") == SCM_UNDEFINED)
+ set_elt_property ("interfaces", SCM_EOL);
}
Score_element::Score_element (Score_element const&s)
+ : dim_cache_ (s.dim_cache_)
{
- dim_cache_[X_AXIS] = new Dimension_cache (*s.dim_cache_[X_AXIS]);
- dim_cache_[Y_AXIS] = new Dimension_cache (*s.dim_cache_[Y_AXIS]);
- dim_cache_[X_AXIS]->elt_l_ = dim_cache_[Y_AXIS]->elt_l_ = this;
-
self_scm_ = SCM_EOL;
- used_b_ = true;
original_l_ =(Score_element*) &s;
- element_property_alist_ = SCM_EOL; // onstack;
-
+ 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_;
Score_element::~Score_element()
{
- assert (status_i_ >=0);
- status_i_ = -1;
+ // this goes awry when score-elements are copied...
- delete dim_cache_[X_AXIS];
- delete dim_cache_[Y_AXIS];
+ /*
+ Kijk goed naar hoe smobify en unsmobify werken. unsmobify_self
+ is te gebruiken wanneer C++ geheugen beheer weer overneemt van
+ GUILE. --hwn */
}
-// should also have one that takes SCM arg.
+
SCM
-Score_element::get_elt_property (String nm) const
+Score_element::get_elt_property (const char *nm) const
{
- SCM sym = ly_symbol2scm (nm.ch_C());
- SCM s = scm_assq(sym, element_property_alist_);
+ SCM sym = ly_symbol2scm (nm);
+ return get_elt_property (sym);
+}
+SCM
+Score_element::get_elt_property (SCM sym) const
+{
+ SCM s = scm_assq(sym, mutable_property_alist_);
if (s != SCM_BOOL_F)
- return gh_cdr (s);
-
- if (pscore_l_)
- {
- SCM sym2 = ly_symbol2scm ((name () + ("::" + nm)).ch_C());
- SCM val;
-
- // should probably check for Type::sym as well.
- Paper_def * p= pscore_l_->paper_l_;
- if (p->default_properties_.try_retrieve (sym2, &val))
- return val;
- else if (p->default_properties_.try_retrieve (sym, &val))
- return val;
- }
-
- return SCM_UNDEFINED;
+ return gh_cdr (s);
+
+ s = scm_assq (sym, immutable_property_alist_);
+ return (s == SCM_BOOL_F) ? SCM_UNDEFINED : gh_cdr (s);
}
+/*
+ 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 (String key)
+Score_element::remove_elt_property (const char* key)
{
- SCM s = get_elt_property (key);
- SCM sym = ly_symbol2scm (key.ch_C());
- element_property_alist_ = scm_assq_remove_x (element_property_alist_, sym);
- return s;
+ SCM val = get_elt_property (key);
+ if (val != SCM_UNDEFINED)
+ set_elt_property (key, SCM_UNDEFINED);
+ return val;
+}
+
+void
+Score_element::set_elt_property (const char* k, SCM v)
+{
+ SCM s = ly_symbol2scm (k);
+ set_elt_property (s, v);
}
/*
- UGH. assoc vs. assq
+ 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_elt_property (String k, SCM v)
+Score_element::set_immutable_elt_property (const char*k, SCM v)
{
- SCM s = ly_symbol2scm (k.ch_C( ));
- element_property_alist_ = scm_assoc_set_x (element_property_alist_, s, v);
+ SCM s = ly_symbol2scm (k);
+ set_immutable_elt_property (s, v);
}
-Interval
-Score_element::molecule_extent(Dimension_cache const *c)
+void
+Score_element::set_immutable_elt_property (SCM s, SCM v)
{
- Score_element *s = dynamic_cast<Score_element*>(c->element_l());
- Molecule m = s->do_brew_molecule();
- return m.extent()[c->axis ()];
+ 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);
}
-void
-Score_element::print() const
+Interval
+Score_element::molecule_extent (Score_element *s, Axis a)
{
-#ifndef NPRINT
- DEBUG_OUT << classname(this) << "{\n";
-
- if (flower_dstream && !flower_dstream->silent_b ("Score_element"))
- ly_display_scm (element_property_alist_);
+ Molecule m = s->get_molecule ();
+ return m.extent(a);
+}
- if (original_l_)
- DEBUG_OUT << "Copy ";
- do_print();
+Interval
+Score_element::preset_extent (Score_element *s , Axis a)
+{
+ SCM ext = s->get_elt_property ((a == X_AXIS)
+ ? "extent-X"
+ : "extent-Y");
- DEBUG_OUT << "}\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_l () const
{
return;
status_i_ ++;
-#if 0
- /*
- UGH. UGH. UGH.
- */
- if (get_elt_property ("self-alignment-X") != SCM_UNDEFINED
- && !dim_cache_[X_AXIS]->off_callback_l_)
- {
- add_offset_callback (Side_position_interface::aligned_on_self,X_AXIS);
- }
-
- if (get_elt_property ("self-alignment-Y") != SCM_UNDEFINED
- && !dim_cache_[X_AXIS]->off_callback_l_)
-
- {
- add_offset_callback (Side_position_interface::aligned_on_self, Y_AXIS);
- }
-#endif
-
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 (SCM d= get_elt_property ("dependencies"); d != SCM_EOL; d = gh_cdr (d))
+ for (SCM d= get_elt_property ("dependencies"); gh_pair_p (d); d = gh_cdr (d))
{
unsmob_element (gh_car (d))
- ->calculate_dependencies (final, busy, funcptr);
+ ->calculate_dependencies (final, busy, funcname);
}
- (this->*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_);
+
status_i_= final;
+
}
-void
-Score_element::output_processing ()
+Molecule
+Score_element::get_molecule () const
{
- if (to_boolean (get_elt_property ("transparent")))
- return;
+ 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)));
-
- Molecule m (do_brew_molecule ());
- Offset o (relative_coordinate (0, X_AXIS), relative_coordinate (0, Y_AXIS));
-
- SCM s = get_elt_property ("extra-offset");
- if (gh_pair_p (s))
- {
- Real il = paper_l ()->get_var ("interline");
- o[X_AXIS] += il * gh_scm2double (gh_car (s));
- o[Y_AXIS] += il * gh_scm2double (gh_cdr (s));
- }
-
- pscore_l_->outputter_l_->output_molecule (m.expr_, o, classname(this));
+ return Molecule ();
}
+
/*
VIRTUAL STUBS
{
}
-void
-Score_element::after_line_breaking ()
-{
-}
-
-void
-Score_element::do_breakable_col_processing()
-{
- handle_prebroken_dependencies();
-}
-
-void
-Score_element::before_line_breaking ()
-{
-}
-
-void
-Score_element::do_space_processing ()
-{
-}
void
Score_element::do_add_processing()
}
+MAKE_SCHEME_CALLBACK(Score_element,brew_molecule)
-Molecule
-Score_element::do_brew_molecule() const
+/*
+ ugh.
+ */
+SCM
+Score_element::brew_molecule (SCM smob)
{
- SCM glyph = get_elt_property ("glyph");
+ Score_element * sc = unsmob_element (smob);
+ SCM glyph = sc->get_elt_property ("glyph");
if (gh_string_p (glyph))
{
- return lookup_l ()->afm_find (String (ly_scm2string (glyph)));
-
+ return sc->lookup_l ()->afm_find (String (ly_scm2string (glyph))).create_scheme ();
}
else
{
- Molecule m ;
- m.set_empty (true);
- return m;
+ return SCM_EOL;
}
}
{
if (e)
{
- Group_interface gi (this, "dependencies");
+ Pointer_group_interface gi (this, "dependencies");
gi.add_element (e);
}
else
Score_element::handle_broken_smobs (SCM src, SCM criterion)
{
again:
-
-
Score_element *sc = unsmob_element (src);
if (sc)
{
- if (criterion == SCM_UNDEFINED)
- return SCM_UNDEFINED;
- else if (gh_number_p (criterion))
+ 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_broken_piece (d);
+ Item *br = i->find_prebroken_piece (d);
return (br) ? br->self_scm_ : SCM_UNDEFINED;
}
}
else
{
- Score_element * ln = unsmob_element ( criterion);
- Line_of_score * line = dynamic_cast<Line_of_score*> (ln);
- Score_element * br =0;
- Line_of_score * dep_line = sc->line_l ();
- if (dep_line != line)
+ Line_of_score * line
+ = dynamic_cast<Line_of_score*> (unsmob_element (criterion));
+ if (sc->line_l () != line)
{
- br = sc->find_broken_piece (line);
- return (br) ? br->self_scm_ : SCM_UNDEFINED;
+ sc = sc->find_broken_piece (line);
+
}
- if (!dep_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 car = handle_broken_smobs (gh_car (src), criterion);
- SCM cdr = gh_cdr (src);
+ SCM newcar = handle_broken_smobs (oldcar, criterion);
+ SCM oldcdr = gh_cdr (src);
- if (car == SCM_UNDEFINED
- && (gh_pair_p (cdr) || cdr == SCM_EOL))
+ 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. */
- src = cdr;
+ 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;
}
- return gh_cons (car, handle_broken_smobs (cdr, criterion));
+ SCM newcdr = handle_broken_smobs (oldcdr, criterion);
+ return gh_cons (newcar, newcdr);
}
else
return src;
{
Score_element * sc = s->broken_into_l_arr_[i];
Line_of_score * l = sc->line_l ();
- s->broken_into_l_arr_[i]->element_property_alist_ =
- handle_broken_smobs (element_property_alist_,
+ sc->mutable_property_alist_ =
+ handle_broken_smobs (mutable_property_alist_,
l ? l->self_scm_ : SCM_UNDEFINED);
}
}
+
Line_of_score *line = line_l();
- element_property_alist_
- = handle_broken_smobs (element_property_alist_,
- line ? line->self_scm_ : SCM_UNDEFINED);
-}
+ 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();
+ }
+}
/*
- TODO: cleanify.
- */
+ 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::handle_prebroken_dependencies()
+Score_element::suicide ()
{
- if (Item*i =dynamic_cast<Item*> (this))
+ 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++)
{
- if (original_l_)
- {
- element_property_alist_
- = handle_broken_smobs (original_l_->element_property_alist_,
- gh_int2scm (i->break_status_dir ()));
- }
+ dim_cache_[a].off_callbacks_.clear ();
}
}
-bool
-Score_element::linked_b() const
-{
- return used_b_;
-}
-
void
-Score_element::do_print () const
+Score_element::handle_prebroken_dependencies()
{
}
void
Score_element::translate_axis (Real y, Axis a)
{
- dim_cache_[a]->translate (y);
+ if (isinf (y) || isnan (y))
+ programming_error (_(INFINITY_MSG));
+ else
+ {
+ dim_cache_[a].offset_ += y;
+ }
}
Real
-Score_element::relative_coordinate (Score_element const*e, Axis a) const
+Score_element::relative_coordinate (Score_element const*refp, Axis a) const
{
- return dim_cache_[a]->relative_coordinate (e ? e->dim_cache_[a] : 0);
+ 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);
}
-Score_element *
-Score_element::common_refpoint (Score_element const* s, Axis a) const
+Real
+Score_element::get_offset (Axis a) const
{
- Dimension_cache *dim = dim_cache_[a]->common_refpoint (s->dim_cache_[a]);
- return dim ? dim->element_l () : 0;
+ 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_;
}
-void
-Score_element::set_empty (Axis a)
+
+Interval
+Score_element::point_dimension_callback (Score_element* , Axis)
{
- dim_cache_[a]->extent_callback_l_ =0;
+ return Interval (0,0);
}
bool
Score_element::empty_b (Axis a)const
{
- return !dim_cache_[a]->extent_callback_l_;
+ return !dim_cache_[a].extent_callback_l_;
}
Interval
Score_element::extent (Axis a) const
{
- Dimension_cache const * d = dim_cache_[a];
+ 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;
- return d->get_dim ();
+ 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
{
- Dimension_cache*d= dim_cache_[a]->parent_l_;
- return d ? d->elt_l_ : 0;
+ 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;
}
+
Score_element *
-Score_element::common_refpoint (Link_array<Score_element> gs, Axis a) const
+Score_element::common_refpoint (SCM elist, Axis a) const
{
- Dimension_cache * common = dim_cache_[a];
- for (int i=0; i < gs.size (); i++)
+ Score_element * common = (Score_element*) this;
+ for (; gh_pair_p (elist); elist = gh_cdr (elist))
{
- common = common->common_refpoint (gs[i]->dim_cache_[a]);
+ Score_element * s = unsmob_element (gh_car (elist));
+ if (s)
+ common = common->common_refpoint (s, a);
}
- return common->element_l ();
+ return common;
}
char const *
}
void
-Score_element::add_offset_callback (Offset_cache_callback cb, Axis a)
+Score_element::add_offset_callback (Offset_callback cb, Axis a)
{
- dim_cache_[a]->off_callbacks_.push (cb);
+ dim_cache_[a].off_callbacks_.push (cb);
}
bool
-Score_element::has_offset_callback_b (Offset_cache_callback cb, Axis a)const
+Score_element::has_extent_callback_b (Extent_callback cb, Axis a)const
{
- for (int i= dim_cache_[a]->off_callbacks_.size (); i--;)
+ 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)
+ if (dim_cache_[a].off_callbacks_[i] == cb)
return true;
}
return false;
}
void
-Score_element::set_parent (Score_element *g, Axis a)
+Score_element::set_extent_callback (Dim_cache_callback dc, Axis a)
{
- dim_cache_[a]->parent_l_ = g ? g->dim_cache_[a]: 0;
+ dim_cache_[a].extent_callback_l_ = dc ;
}
+
void
-Score_element::fixup_refpoint ()
+Score_element::set_parent (Score_element *g, Axis a)
{
+ dim_cache_[a].parent_l_ = g;
+}
+
+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 ++)
{
Axis ax = (Axis)a;
- Score_element * parent = parent_l (ax);
+ Score_element * parent = me->parent_l (ax);
if (!parent)
continue;
- if (parent->line_l () != line_l ())
+ if (parent->line_l () != me->line_l () && me->line_l ())
{
- Score_element * newparent = parent->find_broken_piece (line_l ());
- set_parent (newparent, ax);
- if (!newparent)
- {
- programming_error ("Orphaned score-element.");
- }
+ Score_element * newparent = parent->find_broken_piece (me->line_l ());
+ me->set_parent (newparent, ax);
}
- if (Item * i = dynamic_cast<Item*> (this))
+ if (Item * i = dynamic_cast<Item*> (me))
{
Item *parenti = dynamic_cast<Item*> (parent);
Direction my_dir = i->break_status_dir () ;
if (my_dir!= parenti->break_status_dir())
{
- Item *newparent = parenti->find_broken_piece (my_dir);
- set_parent (newparent, ax);
+ Item *newparent = parenti->find_prebroken_piece (my_dir);
+ me->set_parent (newparent, ax);
}
}
}
}
+ return smob;
}
SMOB funcs
****************************************************/
-
#include "ly-smobs.icc"
IMPLEMENT_UNSMOB(Score_element, element);
IMPLEMENT_SMOBS(Score_element);
+
SCM
Score_element::mark_smob (SCM ses)
{
programming_error ("SMOB marking gone awry");
return SCM_EOL;
}
- return s->element_property_alist_;
+ 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_;
}
int
return 1;
}
+void
+Score_element::do_derived_mark ()
+{
+}
+
void
Score_element::do_smobify_self ()
{
SCM
-Score_element::ly_set_elt_property (SCM elt, SCM sym, SCM val)
+ly_set_elt_property (SCM elt, SCM sym, SCM val)
{
Score_element * sc = unsmob_element (elt);
if (sc)
{
- sc->element_property_alist_ = scm_assoc_set_x (sc->element_property_alist_, sym, val);
+ sc->set_elt_property (sym, val);
}
else
{
SCM
-Score_element::ly_get_elt_property (SCM elt, SCM sym)
+ly_get_elt_property (SCM elt, SCM sym)
{
Score_element * sc = unsmob_element (elt);
if (sc)
{
- SCM s = scm_assq(sym, sc->element_property_alist_);
-
- if (s != SCM_BOOL_F)
- return gh_cdr (s);
- else
- return SCM_UNDEFINED;
+ return sc->get_elt_property (sym);
}
else
{
}
+void
+Score_element::discretionary_processing()
+{
+}
+
+
+
+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 ()
{
- scm_make_gsubr ("ly-get-elt-property", 2, 0, 0, (SCM(*)(...))Score_element::ly_get_elt_property);
- scm_make_gsubr ("ly-set-elt-property", 3, 0, 0, (SCM(*)(...))Score_element::ly_set_elt_property);
+ 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::has_interface (SCM k)
+{
+ 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