source file of the GNU LilyPond music typesetter
- (c) 1997--1999 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 "input-smob.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"
-Interval
-Score_element::dim_cache_callback (Dimension_cache*c)
-{
- Score_element * e =dynamic_cast<Score_element*>( c->element_l());
- if(&e->dim_cache_[X_AXIS] == c)
- return e->do_width ();
- else
- return e->do_height ();
-}
+#include "ly-smobs.icc"
+
+/*
+TODO:
+
+remove dynamic_cast<Spanner,Item> and put this code into respective
+ subclass.
+*/
-Score_element::Score_element()
+
+#define INFINITY_MSG "Infinity or NaN encountered"
+
+Score_element::Score_element(SCM basicprops)
{
- output_p_ =0;
- dim_cache_[X_AXIS].set_callback (dim_cache_callback);
- dim_cache_[Y_AXIS].set_callback (dim_cache_callback);
- used_b_ = false;
+ /*
+ fixme: default should be no callback.
+ */
+
pscore_l_=0;
lookup_l_ =0;
status_i_ = 0;
original_l_ = 0;
- element_property_alist_ = SCM_EOL;
+ immutable_property_alist_ = basicprops;
+ mutable_property_alist_ = SCM_EOL;
+
+ smobify_self ();
+
+ 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)
- : Graphical_element (s)
+ : dim_cache_ (s.dim_cache_)
{
- used_b_ = true;
original_l_ =(Score_element*) &s;
- element_property_alist_ = scm_list_copy (s.element_property_alist_);
- dependency_arr_ = s.dependency_arr_;
- output_p_ =0;
+ 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_;
+
+ smobify_self ();
}
Score_element::~Score_element()
{
- element_property_alist_ = SCM_EOL; // try to be nice to GC.
- delete output_p_;
- assert (status_i_ >=0);
- status_i_ = -1;
+ /*
+ do nothing scm-ish and no unprotecting here.
+ */
}
-Score_element*
-Score_element::dependency (int i) const
-{
- return dependency_arr_ [i];
-}
-int
-Score_element::dependency_size () const
+SCM
+Score_element::get_elt_property (const char *nm) const
{
- return dependency_arr_.size ();
+ SCM sym = ly_symbol2scm (nm);
+ return get_elt_property (sym);
}
-
-
SCM
Score_element::get_elt_property (SCM sym) const
{
- SCM s = scm_assq(sym, element_property_alist_);
+ SCM s = scm_sloppy_assq(sym, mutable_property_alist_);
+ if (s != SCM_BOOL_F)
+ return gh_cdr (s);
- // is this a good idea?
- if (s == SCM_BOOL_F && pscore_l_ && pscore_l_->paper_l_)
- s = pscore_l_->paper_l_->get_scm_var (sym);
-
- return s;
+ s = scm_sloppy_assq (sym, immutable_property_alist_);
+ return (s == SCM_BOOL_F) ? SCM_EOL : 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 (SCM key)
+Score_element::remove_elt_property (const char* key)
{
- SCM s = get_elt_property (key);
- element_property_alist_ = scm_assq_remove_x (element_property_alist_, key);
- return s;
+ SCM val = get_elt_property (key);
+ if (val != SCM_EOL)
+ set_elt_property (key, SCM_EOL);
+ return val;
}
void
-Score_element::set_elt_property (SCM s, SCM v)
+Score_element::set_elt_property (const char* k, SCM v)
{
- element_property_alist_ =
- scm_assoc_set_x (element_property_alist_, s, v);
+ SCM s = ly_symbol2scm (k);
+ set_elt_property (s, v);
}
-Interval
-Score_element::do_width() 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)
{
- Interval r;
-
- Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
- r = m->extent().x ();
+ SCM s = ly_symbol2scm (k);
+ set_immutable_elt_property (s, v);
+}
- if (!output_p_)
- delete m;
-
- return r;
+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_height() const
+
+MAKE_SCHEME_CALLBACK(Score_element,molecule_extent,2);
+SCM
+Score_element::molecule_extent (SCM element_smob, SCM scm_axis)
{
- Interval r;
- Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
- r = m->extent().y ();
- if (!output_p_)
- delete m;
+ Score_element *s = unsmob_element (element_smob);
+ Axis a = (Axis) gh_scm2int (scm_axis);
- return r;
+ Molecule m = s->get_molecule ();
+ return ly_interval2scm ( m.extent(a));
}
-void
-Score_element::print() const
-{
-#ifndef NPRINT
- DOUT << classname(this) << "{\n";
- DOUT << "dependencies: " << dependency_size();
- if (original_l_)
- DOUT << "Copy ";
- Graphical_element::do_print ();
- do_print();
+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");
+
+ 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 ly_interval2scm (Interval (l, r));
+ }
- DOUT << "}\n";
-#endif
+ return ly_interval2scm ( Interval ());
}
+
Paper_def*
Score_element::paper_l () const
{
- return pscore_l_->paper_l_;
+ return pscore_l_ ? pscore_l_->paper_l_ : 0;
}
-
Lookup const *
Score_element::lookup_l () const
{
+ /*
+ URG junkthis, caching is clumsy.
+ */
if (!lookup_l_)
{
- Score_element * me = (Score_element*)this;
- SCM sz = me->remove_elt_property (fontsize_scm_sym);
- int i = (sz != SCM_BOOL_F)
- ? gh_scm2int (SCM_CDR (sz))
+ Score_element * urg = (Score_element*)this;
+ SCM sz = urg->remove_elt_property ("font-size");
+ int i = (gh_number_p (sz))
+ ? gh_scm2int (sz)
: 0;
- me->lookup_l_ = pscore_l_->paper_l_->lookup_l (i);
+ 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_arr_.size(); i++)
- dependency_arr_[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 (get_elt_property (transparent_scm_sym) != SCM_BOOL_F)
- return;
+ SCM proc = get_elt_property ("molecule-callback");
+
+ SCM mol = SCM_EOL;
+ if (gh_procedure_p (proc))
+ mol = gh_apply (proc, gh_list (this->self_scm (), SCM_UNDEFINED));
- // we're being silly here.
- if (output_p_)
- delete output_p_;
+
+ SCM origin =get_elt_property ("origin");
+ if (!unsmob_input (origin))
+ origin =ly_symbol2scm ("no-origin");
- output_p_ = do_brew_molecule_p ();
- pscore_l_->outputter_l_->output_molecule (output_p_,
- absolute_offset (),
- classname(this));
+ if (gh_pair_p (mol))
+ {
+ // ugr.
+ mol = gh_cons (gh_list (origin, gh_car (mol), SCM_UNDEFINED), gh_cdr (mol));
+ }
- pscore_l_->schedule_for_delete (this);
-}
+ Molecule m (create_molecule (mol));
+
+ /*
+ 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;
+}
/*
VIRTUAL STUBS
*/
-
void
Score_element::do_break_processing()
{
- handle_broken_dependencies();
}
-void
-Score_element::do_post_processing()
+
+
+
+
+MAKE_SCHEME_CALLBACK(Score_element,brew_molecule,1)
+
+/*
+ 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;
+ }
}
-void
-Score_element::do_breakable_col_processing()
+
+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 ::add_element (this, "dependencies",e);
+
+ }
+ else
+ programming_error ("Null dependency added");
+}
+
+
+
+
+/**
+ 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_space_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_add_processing()
+Score_element::suicide ()
{
+ 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].offset_callbacks_ = SCM_EOL;
+ dim_cache_[a].offsets_left_ = 0;
+ }
}
void
-Score_element::do_substitute_element_pointer (Score_element*,Score_element*)
+Score_element::handle_prebroken_dependencies()
+{
+}
+
+Score_element*
+Score_element::find_broken_piece (Line_of_score*) const
{
+ return 0;
}
+void
+Score_element::translate_axis (Real y, Axis a)
+{
+ if (isinf (y) || isnan (y))
+ programming_error (_(INFINITY_MSG));
+ else
+ {
+ dim_cache_[a].offset_ += y;
+ }
+}
-Molecule*
-Score_element::do_brew_molecule_p() const
+Real
+Score_element::relative_coordinate (Score_element const*refp, Axis a) const
{
- Molecule a (lookup_l ()->fill (Box (Interval (0,0), Interval (0,0))));
- return new Molecule (a);
+ 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].offsets_left_)
+ {
+ 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));
-Line_of_score *
-Score_element::line_l() const
+ Real r = gh_scm2double (retval);
+ if (isinf (r) || isnan (r))
+ {
+ programming_error (INFINITY_MSG);
+ r = 0.0;
+ }
+ me->dim_cache_[a].offset_ +=r;
+ }
+ return dim_cache_[a].offset_;
+}
+
+
+MAKE_SCHEME_CALLBACK(Score_element,point_dimension_callback,2);
+SCM
+Score_element::point_dimension_callback (SCM , SCM )
{
- return 0;
+ return ly_interval2scm ( Interval (0,0));
+}
+
+bool
+Score_element::empty_b (Axis a)const
+{
+ 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 (Score_element * refp, Axis a) const
+{
+ Real x = relative_coordinate (refp, a);
+
+
+ Dimension_cache * d = (Dimension_cache *)&dim_cache_[a];
+ Interval ext ;
+ if (gh_pair_p (d->dimension_))
+ ;
+ else if (gh_procedure_p (d->dimension_))
+ {
+ /*
+ FIXME: add doco on types, and should typecheck maybe?
+ */
+ d->dimension_= gh_call2 (d->dimension_, self_scm(), gh_int2scm (a));
+ }
+ else
+ return ext;
+
+ if (!gh_pair_p (d->dimension_))
+ return ext;
- DEPENDENCIES
+ ext = ly_scm2interval (d->dimension_);
- */
+ SCM extra = get_elt_property (a == X_AXIS
+ ? "extra-extent-X"
+ : "extra-extent-Y");
-void
-Score_element::remove_dependency (Score_element*e)
+ /*
+ 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))));
+ }
+
+ ext.translate (x);
+
+ return ext;
+}
+
+
+Score_element*
+Score_element::parent_l (Axis a) const
{
- int i;
- while ((i = dependency_arr_.find_i (e)) >=0 )
- dependency_arr_.unordered_del (i);
+ return dim_cache_[a].parent_l_;
+}
- substitute_dependency (e, 0);
+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;
}
-void
-Score_element::add_dependency (Score_element*e)
+
+Score_element *
+Score_element::common_refpoint (SCM elist, Axis a) const
{
- if (e)
+ Score_element * common = (Score_element*) this;
+ for (; gh_pair_p (elist); elist = gh_cdr (elist))
{
- dependency_arr_.push (e);
- e->used_b_ = true;
+ Score_element * s = unsmob_element (gh_car (elist));
+ if (s)
+ common = common->common_refpoint (s, a);
}
- else
- warning("Null dependency added");
-
+
+ return common;
+}
+
+String
+Score_element::name () const
+{
+ 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 (SCM cb, Axis a)
+{
+ 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 (SCM cb, Axis a)const
+{
+ return scm_equal_p (cb, dim_cache_[a].dimension_);
+}
+
+
+bool
+Score_element::has_extent_callback_b (Axis a) const
+{
+ 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::substitute_dependency (Score_element* old, Score_element* new_l)
+Score_element::set_extent_callback (SCM dc, Axis a)
{
- do_substitute_element_pointer (old,new_l);
- old->do_substitute_element_pointer (this, 0);
+ dim_cache_[a].dimension_ =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,1);
+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);
+ }
- if (broken)
- 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
- span: item1 item2 item3
+IMPLEMENT_UNSMOB(Score_element, element);
+IMPLEMENT_SMOBS(Score_element);
+IMPLEMENT_DEFAULT_EQUAL_P(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)
{
- /* dynamic_cast<Item*> (this) &&
- if (!break_status_dir ())
- return;
- */
- Link_array<Score_element> old_arr, new_arr;
+ 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++)
+ {
+ scm_gc_mark (s->dim_cache_[a].offset_callbacks_);
+ scm_gc_mark (s->dim_cache_[a].dimension_);
+ }
- for (int i=0; i < dependency_size(); i++)
+ 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 ());
+
+ if (s->original_l_)
+ scm_gc_mark (s->original_l_->self_scm ());
+ return s->do_derived_mark ();
+}
+
+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 ().ch_C(), port);
+
+ /*
+ don't try to print properties, that is too much hassle.
+ */
+ scm_puts (" >", port);
+ return 1;
+}
+
+SCM
+Score_element::do_derived_mark ()
+{
+ return SCM_EOL;
+}
+
+
+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_UNSPECIFIED;
+ }
+
+ if (sc)
{
- Score_element * elt = dependency (i);
- Item *it_l = dynamic_cast <Item *> (elt);
- if (it_l && it_l->broken_original_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
- {
- Direction d = LEFT;
- do {
- old_arr.push (0);
- new_arr.push (it_l->find_prebroken_piece (d));
- } while (flip(&d)!= LEFT);
- }
+ sc->set_elt_property (sym, val);
}
+ else
+ {
+ error ("Not a score element");
+ ly_display_scm (elt);
+ }
+
+ return SCM_UNSPECIFIED;
+}
+
+
+SCM
+ly_get_elt_property (SCM elt, SCM sym)
+{
+ Score_element * sc = unsmob_element (elt);
- for (int i=0; i < old_arr.size(); i++)
- if (old_arr[i])
- substitute_dependency (old_arr[i], new_arr[i]);
+ if (sc)
+ {
+ return sc->get_elt_property (sym);
+ }
+ else
+ {
+ error ("Not a score element");
+ ly_display_scm (elt);
+ }
+ return SCM_UNSPECIFIED;
}
+
void
-Score_element::handle_prebroken_dependents()
+Score_element::discretionary_processing()
{
}
-Link_array<Score_element>
-Score_element::get_extra_dependencies() const
+SCM
+spanner_get_bound (SCM slur, SCM dir)
{
- Link_array<Score_element> empty;
- return empty;
+ 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, (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);
}
bool
-Score_element::linked_b() const
+Score_element::has_interface (SCM k)
{
- return used_b_;
+ SCM ifs = get_elt_property (interfaces_sym);
+
+ return scm_memq (k, ifs) != SCM_BOOL_F;
}
void
-Score_element::do_print () const
+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