/*
+
text-spanner.cc -- implement Text_spanner
source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 2000--2001 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "molecule.hh"
-#include "boxes.hh"
+#include "text-item.hh"
#include "text-spanner.hh"
-#include "text-def.hh"
-#include "debug.hh"
+#include "line-spanner.hh"
+#include "spanner.hh"
+#include "font-interface.hh"
+#include "dimensions.hh"
#include "paper-def.hh"
-#include "symbol.hh"
-
-
-void
-Text_spanner::set_support (Directional_spanner*d)
-{
- if (support_span_l_)
- remove_dependency (support_span_l_);
-
- support_span_l_ =d;
- add_dependency (d);
-}
-
-Text_spanner::Text_spanner()
-{
- spec_p_ = 0;
- support_span_l_ = 0;
-}
-
-
-IMPLEMENT_IS_TYPE_B1(Text_spanner,Spanner);
-
-void
-Text_spanner::do_print() const
-{
- spec_p_->print();
-}
-
-void
-Text_spanner::do_post_processing()
-{
- text_off_ = support_span_l_->center() +
- Offset (0,support_span_l_->dir_ * paper()->internote_f () * 4); // todo
-}
-
-Molecule*
-Text_spanner::brew_molecule_p() const
-{
- Atom tsym (spec_p_->get_atom (paper(),CENTER));
- tsym.translate (text_off_);
-
- Molecule*output = new Molecule;
- output->add (tsym);
- return output;
-}
+#include "debug.hh"
+#include "paper-column.hh"
+#include "staff-symbol-referencer.hh"
-void
-Text_spanner::do_pre_processing()
-{
- spanned_drul_ = support_span_l_->spanned_drul_;
-}
+/*
+ TODO:
+ - vertical start / vertical end (fixme-name) |
+ - contination types (vert. star, vert. end) |-> eat volta-spanner
+ - more styles
+ - more texts/positions
+ */
-Interval
-Text_spanner::height() const
-{
- return brew_molecule_p()->extent ().y ();
-}
+MAKE_SCHEME_CALLBACK (Text_spanner, brew_molecule, 1);
-void
-Text_spanner::do_substitute_dependency (Score_elem* o, Score_elem*n)
+SCM
+Text_spanner::brew_molecule (SCM smob)
{
- if (support_span_l_ == o)
- support_span_l_ = (Directional_spanner*) (n?n->spanner():0);
+ Grob *me= unsmob_grob (smob);
+ Spanner *spanner = dynamic_cast<Spanner*> (me);
+
+
+
+ /* Ugh, must be same as Hairpin::brew_molecule. */
+ Real padding = gh_scm2double (me->get_grob_property ("if-text-padding"));
+ Real broken_left = spanner->get_broken_left_end_align ();
+ Real width = spanner->spanner_length ();
+ width -= broken_left;
+
+ Drul_array<bool> broken;
+ Drul_array<Real> extra_off;
+ Direction d = LEFT;
+ do
+ {
+ extra_off [d]=0;
+ Item *b = spanner->get_bound (d);
+ broken[d] = b->break_status_dir () != CENTER;
+
+ if (!broken [d])
+ {
+
+ Interval e = b->extent (b, X_AXIS);
+ Real r = 0.0;
+ if (!e.empty_b ())
+ r = e[-d] + padding;
+ /* Text spanners such as ottava, should span from outer limits of
+ noteheads, iso (de)cresc. spanners that span the inner space */
+ if (me->get_grob_property ("outer") != SCM_EOL)
+ // r *= -1; // huh?
+ {
+ width -= d * r;
+ }
+ else
+ {
+ width += d * r;
+ extra_off[d] = r;
+ }
+ }
+ }
+ while (flip (&d) != LEFT);
+
+ // FIXME: ecs tells us -- only for (de)cresc. spanners
+ width += gh_scm2double (me->get_grob_property ("width-correct"));
+ /* /Ugh */
+
+
+ SCM properties = Font_interface::font_alist_chain (me);
+
+ SCM edge_text = me->get_grob_property ("edge-text");
+ Drul_array<Molecule> edge;
+ if (gh_pair_p (edge_text))
+ {
+ Direction d = LEFT;
+ do
+ {
+ /* Don't repeat edge text for broken end */
+ if (!broken[d])
+ {
+ SCM text = index_cell (edge_text, d);
+ edge[d] = Text_item::text2molecule (me, text, properties);
+ if (!edge[d].empty_b ())
+ edge[d].align_to (Y_AXIS, CENTER);
+ }
+ }
+ while (flip (&d) != LEFT);
+ }
+ width -= edge[LEFT].extent (X_AXIS).length ()
+ + edge[RIGHT].extent (X_AXIS).length ();
+
+ Drul_array<Real> shorten;
+ shorten[LEFT] = 0;
+ shorten[RIGHT] = 0;
+
+ SCM s = me->get_grob_property ("shorten");
+ if (gh_pair_p (s))
+ {
+ shorten[LEFT] = gh_scm2double (gh_car (s));
+ shorten[RIGHT] = gh_scm2double (gh_cdr (s));
+ }
+
+ width -= shorten[LEFT] + shorten[RIGHT];
+
+ if (width < 0)
+ {
+ warning (_ ("Text_spanner too small"));
+ width = 0;
+ }
+
+ /* ugh */
+ Real thick = me->paper_l ()->get_var ("stafflinethickness");
+
+ Molecule line;
+ SCM list = Line_spanner::line_atom (me, width, 0);
+ if (list != SCM_EOL)
+ {
+
+ Box b (Interval (0, width), Interval (-thick / 2, thick / 2));
+ line = Molecule (b, list);
+ }
+
+ Drul_array<Molecule> edge_line;
+ s = me->get_grob_property ("edge-height");
+ if (gh_pair_p (s))
+ {
+ Direction d = LEFT;
+ int dir = to_dir (me->get_grob_property ("direction"));
+ do
+ {
+ Real dy = gh_scm2double (index_cell (s, d)) * - dir;
+ if (dy)
+ {
+ SCM list = Line_spanner::line_atom (me, 0, dy);
+ Box b (Interval (0, thick),
+ dy > 0
+ ? Interval (0, dy)
+ : Interval (dy, 0));
+ edge_line[d] = Molecule (b, list);
+ }
+ }
+ while (flip (&d) != LEFT);
+ }
+
+ Molecule m;
+ if (!edge[LEFT].empty_b ())
+ m = edge[LEFT];
+
+ if (!edge_line[LEFT].empty_b ())
+ m.add_at_edge (X_AXIS, RIGHT, edge_line[LEFT], 0);
+ if (!line.empty_b ())
+ m.add_at_edge (X_AXIS, RIGHT, line, 0);
+ if (!edge_line[RIGHT].empty_b ())
+ m.add_at_edge (X_AXIS, RIGHT, edge_line[RIGHT], 0);
+ if (!edge[RIGHT].empty_b ())
+ m.add_at_edge (X_AXIS, RIGHT, edge[RIGHT], 0);
+ m.translate_axis (broken_left + extra_off[LEFT], X_AXIS);
+
+ return m.smobbed_copy ();
}
-Text_spanner::~Text_spanner()
-{
- delete spec_p_;
-}
-
-Text_spanner::Text_spanner (Text_spanner const&s)
- : Spanner (s)
-{
- support_span_l_ = s.support_span_l_;
- spec_p_ = s.spec_p_? s.spec_p_->clone() : 0;
- text_off_ = s.text_off_;
-}
projects / lilypond.git / blobdiff