#include <string.h>
#include <math.h>
+#include "input-smob.hh"
#include "libc-extension.hh"
#include "group-interface.hh"
#include "misc.hh"
#include "side-position-interface.hh"
#include "item.hh"
+#include "ly-smobs.icc"
+
/*
TODO:
*/
+#define INFINITY_MSG "Infinity or NaN encountered"
Score_element::Score_element(SCM basicprops)
{
- set_extent_callback (molecule_extent, X_AXIS);
- set_extent_callback (molecule_extent, Y_AXIS);
+ /*
+ fixme: default should be no callback.
+ */
pscore_l_=0;
lookup_l_ =0;
status_i_ = 0;
- self_scm_ = SCM_EOL;
original_l_ = 0;
-#ifndef READONLY_PROPS
- basic_property_list_ = basicprops;
-#endif READONLY_PROPS
- property_alist_ = basicprops;
- pointer_alist_ = SCM_EOL;
-
+ immutable_property_alist_ = basicprops;
+ mutable_property_alist_ = SCM_EOL;
+
smobify_self ();
- set_elt_pointer ("dependencies", SCM_EOL);
- set_elt_property ("interfaces", SCM_EOL);
+
+ char const*onames[] = {"X-offset-callbacks", "Y-offset-callbacks"};
+ char const*enames[] = {"X-extent-callback", "Y-extent-callback"};
+
+ for (int a = X_AXIS; a <= Y_AXIS; a++){
+ SCM l = get_elt_property (onames[a]);
+
+ if (scm_ilength (l) >=0)
+ {
+ dim_cache_[a].offset_callbacks_ = l;
+ dim_cache_[a].offsets_left_ = scm_ilength (l);
+ }
+ else
+ {
+ programming_error ("[XY]-offset-callbacks must be a list");
+ }
+
+ SCM cb = get_elt_property (enames[a]);
+
+ /*
+ Should change default to be empty?
+ */
+ if (!gh_procedure_p (cb) && !gh_pair_p (cb))
+ cb = molecule_extent_proc;
+
+ dim_cache_[a].dimension_ = cb;
+ }
+
+ SCM meta = get_elt_property ("meta");
+ SCM ifs = scm_assoc (ly_symbol2scm ("interfaces"), meta);
+
+ set_elt_property ("interfaces",gh_cdr (ifs));
}
Score_element::Score_element (Score_element const&s)
: dim_cache_ (s.dim_cache_)
{
- self_scm_ = SCM_EOL;
original_l_ =(Score_element*) &s;
- property_alist_ = s.property_alist_;
-#ifndef READONLY_PROPS
- basic_property_list_ = s.basic_property_list_;
- /*
- TODO: should copy the private part of the list.
- */
- SCM y ;
- for (SCM *sp = &s.property_alist_; *sp != basic_property_list_; sp = &SCM_CDR(*sp))
- {
- *sp = gh_cons (
- }
-#endif
- pointer_alist_ = SCM_EOL;
+ immutable_property_alist_ = s.immutable_property_alist_;
+ mutable_property_alist_ = SCM_EOL;
status_i_ = s.status_i_;
lookup_l_ = s.lookup_l_;
Score_element::~Score_element()
{
- // this goes awry when score-elements are copied...
- // real weird Paper_column::~Paper_column () -> infinity_mom
- // unsmobify_self ();
+ /*
+ do nothing scm-ish and no unprotecting here.
+ */
}
SCM
-Score_element::get_elt_pointer (const char *nm) const
+Score_element::get_elt_property (const char *nm) const
{
- SCM sym = ly_symbol2scm (nm);
- SCM s = scm_assq(sym, pointer_alist_);
-
- return (s == SCM_BOOL_F) ? SCM_UNDEFINED : gh_cdr (s);
+ SCM sym = ly_symbol2scm (nm);
+ return get_elt_property (sym);
}
-// should also have one that takes SCM arg.
SCM
-Score_element::get_elt_property (String nm) const
+Score_element::get_elt_property (SCM sym) const
{
- SCM sym = ly_symbol2scm (nm.ch_C());
- SCM s = scm_assq(sym, property_alist_);
-
+ SCM s = scm_sloppy_assq(sym, mutable_property_alist_);
if (s != SCM_BOOL_F)
- return gh_cdr (s);
+ return gh_cdr (s);
- return SCM_UNDEFINED;
+ s = scm_sloppy_assq (sym, immutable_property_alist_);
+ return (s == SCM_BOOL_F) ? SCM_EOL : gh_cdr (s);
}
/*
Score_element::remove_elt_property (const char* key)
{
SCM val = get_elt_property (key);
- if (val != SCM_UNDEFINED)
- set_elt_property (key, SCM_UNDEFINED);
+ if (val != SCM_EOL)
+ set_elt_property (key, SCM_EOL);
return val;
}
void
-Score_element::set_elt_property (String k, SCM val)
+Score_element::set_elt_property (const char* k, SCM v)
{
- SCM sym = ly_symbol2scm (k.ch_C ());
-#ifndef READONLY_PROPS
- /*
- destructive if found in my part of the list.
- */
- for (SCM s = property_alist_; s != basic_property_list_; s =gh_cdr (s))
- {
- if (gh_caar (s)== sym)
- {
- gh_set_cdr_x (gh_car (s), val);
- return;
- }
- }
-/*
- not found in private list. Override in private list.
- */
-
-#endif
-
- property_alist_ = gh_cons (gh_cons (sym, val), property_alist_);
+ SCM s = ly_symbol2scm (k);
+ set_elt_property (s, v);
}
+/*
+ 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_pointer (const char* k, SCM v)
+Score_element::set_immutable_elt_property (const char*k, SCM v)
{
SCM s = ly_symbol2scm (k);
- pointer_alist_ = scm_assq_set_x (pointer_alist_, s, v);
+ 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::molecule_extent (Score_element const *s, Axis a )
+MAKE_SCHEME_CALLBACK(Score_element,molecule_extent,2);
+SCM
+Score_element::molecule_extent (SCM element_smob, SCM scm_axis)
{
+ Score_element *s = unsmob_element (element_smob);
+ Axis a = (Axis) gh_scm2int (scm_axis);
+
Molecule m = s->get_molecule ();
- return m.extent(a);
+ return ly_interval2scm ( m.extent(a));
}
-Interval
-Score_element::preset_extent (Score_element const *s , Axis a )
+MAKE_SCHEME_CALLBACK(Score_element,preset_extent,2);
+
+SCM
+Score_element::preset_extent (SCM element_smob, SCM scm_axis)
{
+ Score_element *s = unsmob_element (element_smob);
+ Axis a = (Axis) gh_scm2int (scm_axis);
+
SCM ext = s->get_elt_property ((a == X_AXIS)
? "extent-X"
: "extent-Y");
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 ly_interval2scm (Interval (l, r));
}
- return Interval ();
+ return ly_interval2scm ( Interval ());
}
Lookup const *
Score_element::lookup_l () const
{
+ /*
+ URG junkthis, caching is clumsy.
+ */
if (!lookup_l_)
{
Score_element * urg = (Score_element*)this;
- SCM sz = urg->remove_elt_property ("fontsize");
+ SCM sz = urg->remove_elt_property ("font-size");
int i = (gh_number_p (sz))
? gh_scm2int (sz)
: 0;
}
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);
status_i_= busy;
- for (SCM d= get_elt_pointer ("dependencies"); gh_pair_p (d); 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;
+
}
Molecule
Score_element::get_molecule () const
{
SCM proc = get_elt_property ("molecule-callback");
+
+ SCM mol = SCM_EOL;
if (gh_procedure_p (proc))
- return create_molecule (gh_apply (proc, gh_list (this->self_scm_, SCM_UNDEFINED)));
+ mol = gh_apply (proc, gh_list (this->self_scm (), SCM_UNDEFINED));
+
+
+ SCM origin =get_elt_property ("origin");
+ if (!unsmob_input (origin))
+ origin =ly_symbol2scm ("no-origin");
+
+ if (gh_pair_p (mol))
+ {
+ // ugr.
+ mol = gh_cons (gh_list (origin, gh_car (mol), SCM_UNDEFINED), gh_cdr (mol));
+ }
+
+
+ Molecule m (create_molecule (mol));
- return Molecule ();
+ /*
+ This is almost the same as setting molecule-callback to #f, but
+ this retains the dimensions of this element, which means that you
+ can erase elements individually. */
+ if (to_boolean (get_elt_property ("transparent")))
+ m = Molecule (m.extent_box (), SCM_EOL);
+
+ return m;
}
{
}
-void
-Score_element::after_line_breaking ()
-{
-}
-
-
-void
-Score_element::before_line_breaking ()
-{
-}
-void
-Score_element::do_space_processing ()
-{
-}
-void
-Score_element::do_add_processing()
-{
-}
-MAKE_SCHEME_SCORE_ELEMENT_CALLBACKS(Score_element)
+MAKE_SCHEME_CALLBACK(Score_element,brew_molecule,1)
- /*
+/*
ugh.
*/
-
-Molecule
-Score_element::do_brew_molecule () const
+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)
{
- Pointer_group_interface gi (this, "dependencies");
- gi.add_element (e);
+ Pointer_group_interface ::add_element (this, "dependencies",e);
+
}
else
programming_error ("Null dependency added");
if (i && i->break_status_dir () != d)
{
Item *br = i->find_prebroken_piece (d);
- return (br) ? br->self_scm_ : SCM_UNDEFINED;
+ return (br) ? br->self_scm () : SCM_UNDEFINED;
}
}
else
|| (sc->common_refpoint (line, X_AXIS)
&& sc->common_refpoint (line, Y_AXIS)))
{
- return sc->self_scm_;
+ return sc->self_scm ();
}
return SCM_UNDEFINED;
}
{
Score_element * sc = s->broken_into_l_arr_[i];
Line_of_score * l = sc->line_l ();
- sc->pointer_alist_ =
- handle_broken_smobs (pointer_alist_,
- l ? l->self_scm_ : SCM_UNDEFINED);
+ sc->mutable_property_alist_ =
+ handle_broken_smobs (mutable_property_alist_,
+ l ? l->self_scm () : SCM_UNDEFINED);
}
}
if (line && common_refpoint (line, X_AXIS) && common_refpoint (line, Y_AXIS))
{
- pointer_alist_
- = handle_broken_smobs (pointer_alist_,
- line ? line->self_scm_ : SCM_UNDEFINED);
+ mutable_property_alist_
+ = handle_broken_smobs (mutable_property_alist_,
+ line ? line->self_scm () : SCM_UNDEFINED);
}
else if (dynamic_cast <Line_of_score*> (this))
{
- pointer_alist_ = handle_broken_smobs (pointer_alist_,
+ mutable_property_alist_ = handle_broken_smobs (mutable_property_alist_,
SCM_UNDEFINED);
}
else
void
Score_element::suicide ()
{
- property_alist_ = SCM_EOL;
- pointer_alist_ = SCM_EOL;
- set_extent_callback (0, Y_AXIS);
- set_extent_callback (0, X_AXIS);
+ mutable_property_alist_ = SCM_EOL;
+ immutable_property_alist_ = SCM_EOL;
+
+ set_extent_callback (SCM_EOL, Y_AXIS);
+ set_extent_callback (SCM_EOL, X_AXIS);
for (int a= X_AXIS; a <= Y_AXIS; a++)
{
- dim_cache_[a].off_callbacks_.clear ();
+ dim_cache_[a].offset_callbacks_ = SCM_EOL;
+ dim_cache_[a].offsets_left_ = 0;
}
}
void
Score_element::translate_axis (Real y, Axis a)
{
- dim_cache_[a].offset_ += y;
+ if (isinf (y) || isnan (y))
+ programming_error (_(INFINITY_MSG));
+ else
+ {
+ dim_cache_[a].offset_ += y;
+ }
}
Real
Score_element::get_offset (Axis a) const
{
Score_element *me = (Score_element*) this;
- while (dim_cache_[a].off_callbacks_.size ())
+ while (dim_cache_[a].offsets_left_)
{
- Offset_callback c = dim_cache_[a].off_callbacks_[0];
- me->dim_cache_[a].off_callbacks_.del (0);
- Real r = (*c) (me,a );
+ int l = --me->dim_cache_[a].offsets_left_;
+ SCM cb = scm_list_ref (dim_cache_[a].offset_callbacks_, gh_int2scm (l));
+ SCM retval = gh_call2 (cb, self_scm (), gh_int2scm (a));
+
+ Real r = gh_scm2double (retval);
if (isinf (r) || isnan (r))
{
+ programming_error (INFINITY_MSG);
r = 0.0;
- programming_error ("Infinity or NaN encountered");
}
me->dim_cache_[a].offset_ +=r;
}
}
-Interval
-Score_element::point_dimension_callback (Score_element const* , Axis)
+MAKE_SCHEME_CALLBACK(Score_element,point_dimension_callback,2);
+SCM
+Score_element::point_dimension_callback (SCM , SCM )
{
- return Interval (0,0);
+ return ly_interval2scm ( Interval (0,0));
}
bool
Score_element::empty_b (Axis a)const
{
- return !dim_cache_[a].extent_callback_l_;
+ return ! (gh_pair_p (dim_cache_[a].dimension_ ) ||
+ gh_procedure_p (dim_cache_[a].dimension_ ));
}
+/*
+ TODO: add
+
+ Score_element *refpoint
+
+ to arguments?
+ */
Interval
-Score_element::extent (Axis a) const
+Score_element::extent (Score_element * refp, Axis a) const
{
+ Real x = relative_coordinate (refp, a);
+
+
Dimension_cache * d = (Dimension_cache *)&dim_cache_[a];
- if (!d->extent_callback_l_)
+ Interval ext ;
+ if (gh_pair_p (d->dimension_))
+ ;
+ else if (gh_procedure_p (d->dimension_))
{
- d->dim_.set_empty ();
- }
- else if (!d->valid_b_)
- {
- d->dim_= (*d->extent_callback_l_ ) (this, a);
- d->valid_b_ = true;
+ /*
+ FIXME: add doco on types, and should typecheck maybe?
+ */
+ d->dimension_= gh_call2 (d->dimension_, self_scm(), gh_int2scm (a));
}
+ else
+ return ext;
- Interval ext = d->dim_;
-
- if (empty_b (a))
+ if (!gh_pair_p (d->dimension_))
return ext;
+
+ ext = ly_scm2interval (d->dimension_);
SCM extra = get_elt_property (a == X_AXIS
? "extra-extent-X"
ext.unite (Interval (s * gh_scm2double (gh_car (extra)),
s * gh_scm2double (gh_cdr (extra))));
}
+
+ ext.translate (x);
return ext;
}
Score_element::common_refpoint (Score_element const* s, Axis a) const
{
/*
- I don't like the quadratic aspect of this code. Maybe this should
- be rewritten some time, but the largest chain of parents might be
- 10 high or so, so it shouldn't be a real issue. */
+ 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 common;
}
-char const *
+String
Score_element::name () const
{
- return classname (this);
+ SCM meta = get_elt_property ("meta");
+ SCM nm = scm_assoc (ly_symbol2scm ("name"), meta);
+ nm = (gh_pair_p (nm)) ? gh_cdr (nm) : SCM_EOL;
+ return gh_string_p (nm) ?ly_scm2string (nm) : classname (this);
}
void
-Score_element::add_offset_callback (Offset_callback cb, Axis a)
+Score_element::add_offset_callback (SCM cb, Axis a)
{
- dim_cache_[a].off_callbacks_.push (cb);
+ if (!has_offset_callback_b (cb, a))
+ {
+ dim_cache_[a].offset_callbacks_ = gh_cons (cb, dim_cache_[a].offset_callbacks_ );
+ dim_cache_[a].offsets_left_ ++;
+ }
}
bool
-Score_element::has_extent_callback_b (Extent_callback cb, Axis a)const
+Score_element::has_extent_callback_b (SCM cb, Axis a)const
{
- return cb == dim_cache_[a].extent_callback_l_;
+ return scm_equal_p (cb, dim_cache_[a].dimension_);
}
+
bool
-Score_element::has_offset_callback_b (Offset_callback cb, Axis a)const
+Score_element::has_extent_callback_b (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;
+ return gh_procedure_p (dim_cache_[a].dimension_);
+}
+
+bool
+Score_element::has_offset_callback_b (SCM cb, Axis a)const
+{
+ return scm_memq (cb, dim_cache_[a].offset_callbacks_) != SCM_BOOL_F;
}
void
-Score_element::set_extent_callback (Dim_cache_callback dc, Axis a)
+Score_element::set_extent_callback (SCM dc, Axis a)
{
- dim_cache_[a].extent_callback_l_ = dc ;
+ dim_cache_[a].dimension_ =dc;
}
-
void
Score_element::set_parent (Score_element *g, Axis a)
{
dim_cache_[a].parent_l_ = g;
}
-void
-Score_element::fixup_refpoint ()
+MAKE_SCHEME_CALLBACK(Score_element,fixup_refpoint,1);
+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 () && 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);
+ 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);
if (my_dir!= parenti->break_status_dir())
{
Item *newparent = parenti->find_prebroken_piece (my_dir);
- set_parent (newparent, ax);
+ me->set_parent (newparent, ax);
}
}
}
}
+ return smob;
}
SMOB funcs
****************************************************/
-#include "ly-smobs.icc"
IMPLEMENT_UNSMOB(Score_element, element);
IMPLEMENT_SMOBS(Score_element);
+IMPLEMENT_DEFAULT_EQUAL_P(Score_element);
SCM
Score_element::mark_smob (SCM ses)
{
- Score_element * s = SMOB_TO_TYPE (Score_element, ses);
- if (s->self_scm_ != ses)
+ Score_element * s = (Score_element*) SCM_CELL_WORD_1(ses);
+ scm_gc_mark (s->immutable_property_alist_);
+ scm_gc_mark (s->mutable_property_alist_);
+
+ for (int a =0 ; a < 2; a++)
{
- programming_error ("SMOB marking gone awry");
- return SCM_EOL;
+ scm_gc_mark (s->dim_cache_[a].offset_callbacks_);
+ scm_gc_mark (s->dim_cache_[a].dimension_);
}
- scm_gc_mark (s->pointer_alist_);
-
- s->do_derived_mark ();
+
if (s->parent_l (Y_AXIS))
- scm_gc_mark (s->parent_l (Y_AXIS)->self_scm_);
+ 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_);
+ scm_gc_mark (s->parent_l (X_AXIS)->self_scm ());
- return s->property_alist_;
+ if (s->original_l_)
+ scm_gc_mark (s->original_l_->self_scm ());
+ return s->do_derived_mark ();
}
int
Score_element *sc = (Score_element *) gh_cdr (s);
scm_puts ("#<Score_element ", port);
- scm_puts ((char *)sc->name (), port);
+ scm_puts ((char *)sc->name ().ch_C(), port);
/*
don't try to print properties, that is too much hassle.
return 1;
}
-void
-Score_element::do_derived_mark ()
-{
-}
-
-void
-Score_element::do_smobify_self ()
-{
-}
-
SCM
-Score_element::equal_p (SCM a, SCM b)
+Score_element::do_derived_mark ()
{
- return gh_cdr(a) == gh_cdr(b) ? SCM_BOOL_T : SCM_BOOL_F;
+ return SCM_EOL;
}
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);
{
error ("Not a symbol");
ly_display_scm (sym);
- return SCM_UNDEFINED;
+ return SCM_UNSPECIFIED;
}
if (sc)
{
- sc->property_alist_ = scm_assq_set_x (sc->property_alist_, sym, val);
+ sc->set_elt_property (sym, val);
}
else
{
ly_display_scm (elt);
}
- return SCM_UNDEFINED;
+ return SCM_UNSPECIFIED;
}
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->property_alist_);
-
- if (s != SCM_BOOL_F)
- return gh_cdr (s);
- else
- return SCM_UNDEFINED;
+ return sc->get_elt_property (sym);
}
else
{
error ("Not a score element");
ly_display_scm (elt);
}
- return SCM_UNDEFINED;
+ return SCM_UNSPECIFIED;
+}
+
+
+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, (Scheme_function_unknown)ly_get_elt_property);
+ scm_make_gsubr ("ly-set-elt-property", 3, 0, 0, (Scheme_function_unknown)ly_set_elt_property);
+ scm_make_gsubr ("ly-get-spanner-bound", 2 , 0, 0, (Scheme_function_unknown) spanner_get_bound);
}
-ADD_SCM_INIT_FUNC(scoreelt, init_functions);
+bool
+Score_element::has_interface (SCM k)
+{
+ SCM ifs = get_elt_property (interfaces_sym);
+
+ return scm_memq (k, ifs) != SCM_BOOL_F;
+}
void
-Score_element::discretionary_processing()
+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);
+IMPLEMENT_TYPE_P(Score_element, "ly-element?");
projects / lilypond.git / blobdiff