#include <string.h>
+#include <math.h>
+#include "input-smob.hh"
+#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()
+#include "ly-smobs.icc"
+
+/*
+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;
- 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;
+ /*
+ fixme: default should be no callback.
+ */
- 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 ();
+ 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]);
- set_elt_property ("dependencies", SCM_EOL);
-}
+ 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 ly_deep_copy (SCM);
+ SCM cb = get_elt_property (enames[a]);
-SCM
-ly_deep_copy (SCM l)
-{
- if (gh_pair_p (l))
- {
- return gh_cons (ly_deep_copy (gh_car (l)), ly_deep_copy (gh_cdr (l)));
- }
- else
- return l;
+ /*
+ 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_)
{
- 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;
-
- /*
- should protect because smobify_self () might trigger GC.
- */
- element_property_alist_ = scm_protect_object (ly_deep_copy (s.element_property_alist_));
-
- 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_;
Score_element::~Score_element()
{
- assert (!output_p_);
- assert (status_i_ >=0);
- status_i_ = -1;
-
- delete dim_cache_[X_AXIS];
- delete dim_cache_[Y_AXIS];
+ /*
+ do nothing scm-ish and no unprotecting here.
+ */
}
-Real
-Score_element::get_real (String s) const
+SCM
+Score_element::get_elt_property (const char *nm) const
{
- return gh_scm2double (get_elt_property (s));
+ SCM sym = ly_symbol2scm (nm);
+ return get_elt_property (sym);
}
-void
-Score_element::set_real (String s, Real r)
+SCM
+Score_element::get_elt_property (SCM sym) const
{
- set_elt_property (s, gh_double2scm (r));
+ SCM s = scm_sloppy_assq(sym, mutable_property_alist_);
+ if (s != SCM_BOOL_F)
+ return gh_cdr (s);
+
+ s = scm_sloppy_assq (sym, immutable_property_alist_);
+ return (s == SCM_BOOL_F) ? SCM_EOL : gh_cdr (s);
}
-// should also have one that takes SCM arg.
+/*
+ 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::get_elt_property (String nm) const
+Score_element::remove_elt_property (const char* key)
{
- SCM sym = ly_symbol2scm (nm.ch_C());
- SCM s = scm_assq(sym, element_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;
+ SCM val = get_elt_property (key);
+ if (val != SCM_EOL)
+ set_elt_property (key, SCM_EOL);
+ return val;
}
-SCM
-Score_element::remove_elt_property (String key)
+void
+Score_element::set_elt_property (const char* k, SCM v)
{
- 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 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_p();
- 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
+MAKE_SCHEME_CALLBACK(Score_element,molecule_extent,2);
+SCM
+Score_element::molecule_extent (SCM element_smob, SCM scm_axis)
{
-#ifndef NPRINT
- DEBUG_OUT << classname(this) << "{\n";
-
- if (flower_dstream && !flower_dstream->silent_b ("Score_element"))
- ly_display_scm (element_property_alist_);
+ Score_element *s = unsmob_element (element_smob);
+ Axis a = (Axis) gh_scm2int (scm_axis);
- if (original_l_)
- DEBUG_OUT << "Copy ";
- do_print();
+ Molecule m = s->get_molecule ();
+ return ly_interval2scm ( m.extent(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");
- 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 ly_interval2scm (Interval (l, r));
+ }
+
+ return ly_interval2scm ( Interval ());
}
+
+
Paper_def*
Score_element::paper_l () const
{
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()
+Score_element::calculate_dependencies (int final, int busy, SCM funcname)
{
assert (status_i_ >=0);
- if (status_i_)
+
+ if (status_i_ >= final)
return;
- status_i_ ++;
-#if 0
- /*
- UGH. UGH. UGH.
- */
- if (get_elt_property ("self-alignment-X") != SCM_UNDEFINED
- && !dim_cache_[X_AXIS]->off_callback_l_)
+ if (status_i_== busy)
{
- dim_cache_[X_AXIS]->off_callbacks_.push (Side_position_interface::self_alignment);
+ programming_error ("Element is busy, come back later");
+ return;
}
- if (get_elt_property ("self-alignment-Y") != SCM_UNDEFINED
- && !dim_cache_[X_AXIS]->off_callback_l_)
-
- {
- dim_cache_[Y_AXIS]->set_offset_callback (Side_position_interface::self_alignment);
- }
-#endif
-
- do_add_processing();
-}
-
-void
-Score_element::calculate_dependencies (int final, int busy,
- Score_element_method_pointer funcptr)
-{
- assert (status_i_ >=0);
-
- if (status_i_ >= final)
- return;
-
- assert (status_i_!= busy);
status_i_= busy;
- Link_array<Score_element> dependency_arr =
- Group_interface__extract_elements (this, (Score_element*)0, "dependencies");
-
- 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 ());
- (this->*funcptr)();
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");
- // we're being silly here.
- if (output_p_)
- delete output_p_;
-
- output_p_ = do_brew_molecule_p ();
- Offset o (relative_coordinate (0, X_AXIS), relative_coordinate (0, Y_AXIS));
+ SCM mol = SCM_EOL;
+ if (gh_procedure_p (proc))
+ mol = gh_apply (proc, gh_list (this->self_scm (), SCM_UNDEFINED));
- SCM s = get_elt_property ("extra-offset");
- if (gh_pair_p (s))
+
+ SCM origin =get_elt_property ("origin");
+ if (!unsmob_input (origin))
+ origin =ly_symbol2scm ("no-origin");
+
+ if (gh_pair_p (mol))
{
- 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));
+ // ugr.
+ mol = gh_cons (gh_list (origin, gh_car (mol), SCM_UNDEFINED), gh_cdr (mol));
}
-
- pscore_l_->outputter_l_->output_molecule (output_p_,
- o,
- classname(this));
- delete output_p_;
- output_p_ =0;
+
+ 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_post_processing()
-{
-}
-void
-Score_element::do_breakable_col_processing()
-{
- handle_prebroken_dependencies();
-}
-void
-Score_element::do_pre_processing()
-{
-}
-
-void
-Score_element::do_space_processing ()
-{
-}
-
-void
-Score_element::do_add_processing()
-{
-}
+MAKE_SCHEME_CALLBACK(Score_element,brew_molecule,1)
-Molecule*
-Score_element::do_brew_molecule_p() 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))
{
- Molecule*output = new Molecule (lookup_l ()->afm_find (String (ly_scm2string (glyph))));
-
- return output;
+ return sc->lookup_l ()->afm_find (String (ly_scm2string (glyph))).create_scheme ();
}
else
{
- Interval emp;
- emp.set_empty ();
- Molecule a (lookup_l ()->fill (Box (emp,emp)));
- return new Molecule (a);
+ return SCM_EOL;
}
}
{
if (e)
{
- Group_interface gi (this, "dependencies");
- gi.add_element (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. */
+ 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 s, SCM criterion)
+Score_element::handle_broken_smobs (SCM src, SCM criterion)
{
again:
-
-
- Score_element *sc = unsmob_element ( s);
+ 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);
- return (br) ? br->self_scm_ : SCM_UNDEFINED;
+ 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 (s))
+ else if (gh_pair_p (src))
{
+ SCM oldcar =gh_car (src);
/*
UGH! breaks on circular lists.
*/
- SCM car = handle_broken_smobs (gh_car (s), criterion);
- SCM cdr = gh_cdr (s);
+ 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. */
- s = 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;
}
- gh_set_car_x (s, car);
- gh_set_cdr_x (s, handle_broken_smobs (cdr, criterion));
- return s;
+ SCM newcdr = handle_broken_smobs (oldcdr, criterion);
+ return gh_cons (newcar, newcdr);
}
- return s;
+ else
+ return src;
+
+ return src;
}
void
Score_element::handle_broken_dependencies()
{
- Line_of_score *line = line_l();
- element_property_alist_ = handle_broken_smobs (element_property_alist_,
- line ? line->self_scm_ : SCM_UNDEFINED);
-
- if (!line)
+ Spanner * s= dynamic_cast<Spanner*> (this);
+ if (original_l_ && s)
return;
-}
-
-/*
- TODO: cleanify.
- */
-void
-Score_element::handle_prebroken_dependencies()
-{
- if (Item*i =dynamic_cast<Item*> (this))
+ if (s)
{
- element_property_alist_
- = handle_broken_smobs (element_property_alist_,
- gh_int2scm (i->break_status_dir ()));
+ 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.
-Link_array<Score_element>
-Score_element::get_extra_dependencies() const
-{
- Link_array<Score_element> empty;
- return empty;
+ 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();
+ }
}
-bool
-Score_element::linked_b() const
+/*
+ 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::suicide ()
{
- return used_b_;
+ 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_print () const
+Score_element::handle_prebroken_dependencies()
{
}
return 0;
}
-SCM
-Score_element::mark_smob (SCM ses)
+void
+Score_element::translate_axis (Real y, Axis a)
{
- void * mp = (void*) gh_cdr(ses);
- Score_element * s = (Score_element*) mp;
-
- if (s->self_scm_ != ses)
+ if (isinf (y) || isnan (y))
+ programming_error (_(INFINITY_MSG));
+ else
{
- programming_error ("SMOB marking gone awry");
- return SCM_EOL;
+ dim_cache_[a].offset_ += y;
}
- return s->element_property_alist_;
-}
-
+}
-int
-Score_element::print_smob (SCM s, SCM port, scm_print_state *)
+Real
+Score_element::relative_coordinate (Score_element const*refp, Axis a) const
{
- Score_element *sc = (Score_element *) gh_cdr (s);
-
- scm_puts ("#<Score_element ", port);
- scm_puts ((char *)sc->name (), port);
+ if (refp == this)
+ return 0.0;
- // scm_puts (" properties = ", port);
- // scm_display (sc->element_property_alist_, port);
- scm_puts (" >", port);
- return 1;
+ /*
+ 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);
}
-void
-Score_element::do_smobify_self ()
+Real
+Score_element::get_offset (Axis a) const
{
- scm_unprotect_object (element_property_alist_); // ugh
+ 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));
+
+ 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_;
}
-#include "ly-smobs.icc"
-IMPLEMENT_SMOBS(Score_element);
+
+MAKE_SCHEME_CALLBACK(Score_element,point_dimension_callback,2);
SCM
-Score_element::equal_p (SCM a, SCM b)
+Score_element::point_dimension_callback (SCM , SCM )
{
- return gh_cdr(a) == gh_cdr(b) ? SCM_BOOL_T : SCM_BOOL_F;
+ return ly_interval2scm ( Interval (0,0));
}
-void
-Score_element::translate_axis (Real y, Axis a)
+bool
+Score_element::empty_b (Axis a)const
{
- dim_cache_[a]->translate (y);
-}
+ return ! (gh_pair_p (dim_cache_[a].dimension_ ) ||
+ gh_procedure_p (dim_cache_[a].dimension_ ));
+}
-Real
-Score_element::relative_coordinate (Score_element const*e, Axis a) const
+/*
+ TODO: add
+
+ Score_element *refpoint
+
+ to arguments?
+ */
+Interval
+Score_element::extent (Score_element * refp, Axis a) const
{
- return dim_cache_[a]->relative_coordinate (e ? e->dim_cache_[a] : 0);
+ 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;
+
+ ext = ly_scm2interval (d->dimension_);
+
+ 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))));
+ }
+
+ ext.translate (x);
+
+ 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
{
- Dimension_cache *dim = dim_cache_[a]->common_refpoint (s->dim_cache_[a]);
- return dim ? dim->element_l () : 0;
+ /*
+ 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::set_empty (Axis a)
+
+Score_element *
+Score_element::common_refpoint (SCM elist, Axis a) const
{
- dim_cache_[a]->callback_l_ =0;
+ 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);
+ }
+
+ return common;
}
-bool
-Score_element::empty_b (Axis a)const
+String
+Score_element::name () const
{
- return !dim_cache_[a]->callback_l_;
+ 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);
}
-Interval
-Score_element::extent (Axis a) const
+void
+Score_element::add_offset_callback (SCM cb, Axis a)
{
- Dimension_cache const * d = dim_cache_[a];
-
- return d->get_dim ();
+ 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_ ++;
+ }
}
-Score_element*
-unsmob_element (SCM s)
+bool
+Score_element::has_extent_callback_b (SCM cb, Axis a)const
{
- if (SMOB_IS_TYPE_B (Score_element, s))
- return SMOB_TO_TYPE(Score_element,s);
- else
- return 0;
+ return scm_equal_p (cb, dim_cache_[a].dimension_);
}
-Score_element*
-Score_element::parent_l (Axis a) const
+bool
+Score_element::has_extent_callback_b (Axis a) const
{
- Dimension_cache*d= dim_cache_[a]->parent_l_;
- return d ? d->elt_l_ : 0;
+ return gh_procedure_p (dim_cache_[a].dimension_);
}
-Score_element *
-Score_element::common_refpoint (Link_array<Score_element> gs, Axis a) const
+bool
+Score_element::has_offset_callback_b (SCM cb, Axis a)const
{
- Dimension_cache * common = dim_cache_[a];
- for (int i=0; i < gs.size (); i++)
- {
- common = common->common_refpoint (gs[i]->dim_cache_[a]);
- }
-
- return common->element_l ();
+ return scm_memq (cb, dim_cache_[a].offset_callbacks_) != SCM_BOOL_F;
}
-char const *
-Score_element::name () const
+void
+Score_element::set_extent_callback (SCM dc, Axis a)
{
- return classname (this);
+ dim_cache_[a].dimension_ =dc;
}
-
void
Score_element::set_parent (Score_element *g, Axis a)
{
- dim_cache_[a]->parent_l_ = g ? g->dim_cache_[a]: 0;
+ 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 * par = parent_l (ax);
+ Score_element * parent = me->parent_l (ax);
- if (!par)
+ if (!parent)
continue;
- if (par->line_l () != line_l ())
+ if (parent->line_l () != me->line_l () && me->line_l ())
{
- Score_element * newpar = par->find_broken_piece (line_l ());
- set_parent (newpar, 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 *pari = dynamic_cast<Item*> (par);
+ Item *parenti = dynamic_cast<Item*> (parent);
- if (pari && i)
+ if (parenti && i)
{
Direction my_dir = i->break_status_dir () ;
- if (my_dir!= pari->break_status_dir())
+ if (my_dir!= parenti->break_status_dir())
{
- Item *newpar = pari->find_broken_piece (my_dir);
- set_parent (newpar, ax);
+ Item *newparent = parenti->find_prebroken_piece (my_dir);
+ me->set_parent (newparent, ax);
}
}
}
}
+ return smob;
+}
+
+
+
+/****************************************************
+ SMOB funcs
+ ****************************************************/
+
+
+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 = (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_);
+ }
+
+ 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)
+ {
+ 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);
+
+ if (sc)
+ {
+ return sc->get_elt_property (sym);
+ }
+ else
+ {
+ error ("Not a score element");
+ ly_display_scm (elt);
+ }
+ 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 ()
+{
+ 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::has_interface (SCM k)
+{
+ 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);
+IMPLEMENT_TYPE_P(Score_element, "ly-element?");