--- /dev/null
+/*
+ score-elem.cc -- implement Score_element
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
+
+
+#include <string.h>
+
+#include "group-interface.hh"
+#include "misc.hh"
+#include "paper-score.hh"
+#include "paper-def.hh"
+#include "lookup.hh"
+#include "molecule.hh"
+#include "score-element.hh"
+#include "debug.hh"
+#include "spanner.hh"
+#include "line-of-score.hh"
+#include "item.hh"
+#include "paper-column.hh"
+#include "molecule.hh"
+#include "misc.hh"
+#include "paper-outputter.hh"
+#include "dimension-cache.hh"
+#include "side-position-interface.hh"
+#include "item.hh"
+
+Score_element::Score_element()
+{
+ 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;
+
+ 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;
+
+ smobify_self ();
+
+
+ set_elt_property ("dependencies", SCM_EOL);
+}
+
+SCM ly_deep_copy (SCM);
+
+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;
+}
+
+
+Score_element::Score_element (Score_element const&s)
+{
+ 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.
+ */
+ SCM onstack = ly_deep_copy (s.element_property_alist_);
+ element_property_alist_ = onstack;
+
+ output_p_ =0;
+ status_i_ = s.status_i_;
+ lookup_l_ = s.lookup_l_;
+ pscore_l_ = s.pscore_l_;
+
+ smobify_self ();
+}
+
+Score_element::~Score_element()
+{
+ assert (!output_p_);
+ assert (status_i_ >=0);
+ status_i_ = -1;
+
+ delete dim_cache_[X_AXIS];
+ delete dim_cache_[Y_AXIS];
+}
+
+
+Real
+Score_element::get_real (String s) const
+{
+ return gh_scm2double (get_elt_property (s));
+}
+
+void
+Score_element::set_real (String s, Real r)
+{
+ set_elt_property (s, gh_double2scm (r));
+}
+
+// should also have one that takes SCM arg.
+SCM
+Score_element::get_elt_property (String nm) const
+{
+ 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
+Score_element::remove_elt_property (String 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;
+}
+
+/*
+ UGH. assoc vs. assq
+ */
+void
+Score_element::set_elt_property (String k, SCM v)
+{
+ SCM s = ly_symbol2scm (k.ch_C( ));
+ element_property_alist_ = scm_assoc_set_x (element_property_alist_, s, v);
+}
+
+Interval
+Score_element::molecule_extent(Dimension_cache const *c)
+{
+ Score_element *s = dynamic_cast<Score_element*>(c->element_l());
+ Molecule*m = s->do_brew_molecule_p();
+ return m->extent()[c->axis ()];
+}
+
+
+void
+Score_element::print() const
+{
+#ifndef NPRINT
+ DEBUG_OUT << classname(this) << "{\n";
+
+ if (flower_dstream && !flower_dstream->silent_b ("Score_element"))
+ ly_display_scm (element_property_alist_);
+
+ if (original_l_)
+ DEBUG_OUT << "Copy ";
+ do_print();
+
+ DEBUG_OUT << "}\n";
+#endif
+}
+
+Paper_def*
+Score_element::paper_l () const
+{
+ return pscore_l_ ? pscore_l_->paper_l_ : 0;
+}
+
+Lookup const *
+Score_element::lookup_l () const
+{
+ if (!lookup_l_)
+ {
+ Score_element * urg = (Score_element*)this;
+ SCM sz = urg->remove_elt_property ("fontsize");
+ int i = (gh_number_p (sz))
+ ? gh_scm2int (sz)
+ : 0;
+
+ urg->lookup_l_ = (Lookup*)pscore_l_->paper_l_->lookup_l (i);
+ }
+ return lookup_l_;
+}
+
+void
+Score_element::add_processing()
+{
+ assert (status_i_ >=0);
+ if (status_i_)
+ return;
+ status_i_ ++;
+
+#if 0
+ /*
+ UGH. UGH. UGH.
+ */
+ if (get_elt_property ("self-alignment-X") != SCM_UNDEFINED
+ && !dim_cache_[X_AXIS]->off_callback_l_)
+ {
+ dim_cache_[X_AXIS]->off_callbacks_.push (Side_position_interface::aligned_on_self);
+ }
+
+ 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::aligned_on_self);
+ }
+#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);
+
+ Link_array<Score_element> extra (get_extra_dependencies());
+ for (int i=0; i < extra.size(); i++)
+ extra[i]->calculate_dependencies (final, busy, funcptr);
+
+ (this->*funcptr)();
+ status_i_= final;
+}
+
+void
+Score_element::output_processing ()
+{
+ if (to_boolean (get_elt_property ("transparent")))
+ return;
+
+ // 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 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 (output_p_,
+ o,
+ classname(this));
+
+ delete output_p_;
+ output_p_ =0;
+}
+
+/*
+
+ VIRTUAL STUBS
+
+ */
+void
+Score_element::do_break_processing()
+{
+}
+
+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()
+{
+}
+
+
+
+Molecule*
+Score_element::do_brew_molecule_p() const
+{
+ SCM glyph = get_elt_property ("glyph");
+ if (gh_string_p (glyph))
+ {
+ Molecule*output = new Molecule (lookup_l ()->afm_find (String (ly_scm2string (glyph))));
+
+ return output;
+ }
+ else
+ {
+ Interval emp;
+ emp.set_empty ();
+ Molecule a (lookup_l ()->fill (Box (emp,emp)));
+ return new Molecule (a);
+ }
+}
+
+
+Line_of_score *
+Score_element::line_l() const
+{
+ return 0;
+}
+
+void
+Score_element::add_dependency (Score_element*e)
+{
+ if (e)
+ {
+ Group_interface gi (this, "dependencies");
+ gi.add_element (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. */
+SCM
+Score_element::handle_broken_smobs (SCM s, SCM criterion)
+{
+ again:
+
+
+ Score_element *sc = unsmob_element ( s);
+ if (sc)
+ {
+ if (criterion == SCM_UNDEFINED)
+ return SCM_UNDEFINED;
+ else 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;
+ }
+ }
+ 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)
+ {
+ br = sc->find_broken_piece (line);
+ return (br) ? br->self_scm_ : SCM_UNDEFINED;
+ }
+ if (!dep_line)
+ return SCM_UNDEFINED;
+ }
+ }
+ else if (gh_pair_p (s))
+ {
+ /*
+ UGH! breaks on circular lists.
+ */
+ SCM car = handle_broken_smobs (gh_car (s), criterion);
+ SCM cdr = gh_cdr (s);
+
+ if (car == SCM_UNDEFINED
+ && (gh_pair_p (cdr) || cdr == 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;
+ goto again;
+ }
+
+ gh_set_car_x (s, car);
+ gh_set_cdr_x (s, handle_broken_smobs (cdr, criterion));
+ return s;
+ }
+ return s;
+}
+
+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)
+ return;
+}
+
+
+/*
+ TODO: cleanify.
+ */
+void
+Score_element::handle_prebroken_dependencies()
+{
+ if (Item*i =dynamic_cast<Item*> (this))
+ {
+ element_property_alist_
+ = handle_broken_smobs (element_property_alist_,
+ gh_int2scm (i->break_status_dir ()));
+ }
+}
+
+
+
+
+
+Link_array<Score_element>
+Score_element::get_extra_dependencies() const
+{
+ Link_array<Score_element> empty;
+ return empty;
+}
+
+bool
+Score_element::linked_b() const
+{
+ return used_b_;
+}
+
+void
+Score_element::do_print () const
+{
+}
+
+Score_element*
+Score_element::find_broken_piece (Line_of_score*) const
+{
+ return 0;
+}
+
+
+
+void
+Score_element::translate_axis (Real y, Axis a)
+{
+ dim_cache_[a]->translate (y);
+}
+
+Real
+Score_element::relative_coordinate (Score_element const*e, Axis a) const
+{
+ return dim_cache_[a]->relative_coordinate (e ? e->dim_cache_[a] : 0);
+}
+
+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;
+}
+
+void
+Score_element::set_empty (Axis a)
+{
+ dim_cache_[a]->callback_l_ =0;
+}
+
+bool
+Score_element::empty_b (Axis a)const
+{
+ return !dim_cache_[a]->callback_l_;
+}
+
+Interval
+Score_element::extent (Axis a) const
+{
+ Dimension_cache const * d = dim_cache_[a];
+
+ return d->get_dim ();
+}
+
+
+Score_element*
+Score_element::parent_l (Axis a) const
+{
+ Dimension_cache*d= dim_cache_[a]->parent_l_;
+ return d ? d->elt_l_ : 0;
+}
+
+Score_element *
+Score_element::common_refpoint (Link_array<Score_element> gs, 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 ();
+}
+
+char const *
+Score_element::name () const
+{
+ return classname (this);
+}
+
+
+void
+Score_element::set_parent (Score_element *g, Axis a)
+{
+ dim_cache_[a]->parent_l_ = g ? g->dim_cache_[a]: 0;
+}
+
+void
+Score_element::fixup_refpoint ()
+{
+ for (int a = X_AXIS; a < NO_AXES; a ++)
+ {
+ Axis ax = (Axis)a;
+ Score_element * par = parent_l (ax);
+
+ if (!par)
+ continue;
+
+ if (par->line_l () != line_l ())
+ {
+ Score_element * newpar = par->find_broken_piece (line_l ());
+ set_parent (newpar, ax);
+ }
+
+ if (Item * i = dynamic_cast<Item*> (this))
+ {
+ Item *pari = dynamic_cast<Item*> (par);
+
+ if (pari && i)
+ {
+ Direction my_dir = i->break_status_dir () ;
+ if (my_dir!= pari->break_status_dir())
+ {
+ Item *newpar = pari->find_broken_piece (my_dir);
+ set_parent (newpar, ax);
+ }
+ }
+ }
+ }
+}
+
+
+
+/****************************************************
+ SMOB funcs
+ ****************************************************/
+
+
+#include "ly-smobs.icc"
+
+IMPLEMENT_SMOBS(Score_element);
+IMPLEMENT_UNSMOB(Score_element, element);
+SCM
+Score_element::mark_smob (SCM ses)
+{
+ Score_element * s = SMOB_TO_TYPE (Score_element, ses);
+ if (s->self_scm_ != ses)
+ {
+ programming_error ("SMOB marking gone awry");
+ return SCM_EOL;
+ }
+ return s->element_property_alist_;
+}
+
+int
+Score_element::print_smob (SCM s, SCM port, scm_print_state *)
+{
+ Score_element *sc = (Score_element *) gh_cdr (s);
+
+ scm_puts ("#<Score_element ", port);
+ scm_puts ((char *)sc->name (), port);
+
+ // scm_puts (" properties = ", port);
+ // scm_display (sc->element_property_alist_, port);
+ scm_puts (" >", port);
+ return 1;
+}
+
+void
+Score_element::do_smobify_self ()
+{
+}
+
+SCM
+Score_element::equal_p (SCM a, SCM b)
+{
+ return gh_cdr(a) == gh_cdr(b) ? SCM_BOOL_T : SCM_BOOL_F;
+}
projects / lilypond.git / commitdiff