source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2004 Jan Nieuwenhuizen <janneke@gnu.org>
+
+ Revised over good by Han-Wen.
*/
#include "molecule.hh"
-#include "box.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 "warn.hh"
+#include "paper-column.hh"
+#include "staff-symbol-referencer.hh"
+/*
+ TODO:
+ - vertical start / vertical end (fixme-name) |
+ - contination types (vert. star, vert. end) |-> eat volta-bracket
+ - more styles
+ - more texts/positions
+*/
+MAKE_SCHEME_CALLBACK (Text_spanner, brew_molecule, 1);
-void
-Text_spanner::set_support (Directional_spanner*d)
+/*
+ TODO: this function is too long
+*/
+SCM
+Text_spanner::brew_molecule (SCM smob)
{
- if (support_span_l_)
- remove_dependency (support_span_l_);
+ Grob *me= unsmob_grob (smob);
+ Spanner *spanner = dynamic_cast<Spanner*> (me);
- support_span_l_ =d;
- add_dependency (d);
-}
-
-void
-Text_spanner::do_add_processing ()
-{
- set_bounds (LEFT, support_span_l_->spanned_drul_[LEFT]);
- set_bounds (RIGHT, support_span_l_->spanned_drul_[RIGHT]);
-}
-
-Text_spanner::Text_spanner()
-{
- spec_p_ = 0;
- support_span_l_ = 0;
-}
-
-
-
-
-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::do_brew_molecule_p() const
-{
- Molecule tsym (spec_p_->get_molecule (paper(),CENTER));
- tsym.translate (text_off_);
-
- Molecule*output = new Molecule;
- output->add_molecule (tsym);
- return output;
-}
-
-void
-Text_spanner::do_pre_processing()
-{
- spanned_drul_ = support_span_l_->spanned_drul_;
-}
-
-Interval
-Text_spanner::height() const
-{
- return do_brew_molecule_p()->extent ().y ();
-}
-
-void
-Text_spanner::do_substitute_element_pointer (Score_element* o, Score_element*n)
-{
- if (support_span_l_ == o)
- support_span_l_ = (Directional_spanner*) (n?dynamic_cast <Spanner *> (n):0);
+ /* Ugh, must be same as Hairpin::brew_molecule. */
+
+ Grob *common = spanner->get_bound (LEFT)->common_refpoint (spanner->get_bound (RIGHT), X_AXIS);
+ Paper_def * paper = me->get_paper();
+
+ SCM flare = me->get_grob_property ("bracket-flare");
+ SCM shorten = me->get_grob_property ("shorten-pair");
+
+ Interval span_points;
+ Drul_array<bool> broken;
+ Direction d = LEFT;
+ do
+ {
+ Item *b = spanner->get_bound (d);
+ broken[d] = b->break_status_dir () != CENTER;
+
+ if (broken[d])
+ {
+ if (d == LEFT)
+ span_points[d] = spanner->get_broken_left_end_align ();
+ else
+ span_points[d] = b->relative_coordinate (common, X_AXIS);
+ }
+ else
+ {
+ Real encl = robust_scm2double (me->get_grob_property ("enclose-bounds"), 0.0);
+ span_points[d] = b->extent (common, X_AXIS).linear_combination (d * encl);
+
+ if (is_number_pair (shorten))
+ span_points -= d * gh_scm2double (index_get_cell (shorten, d));
+ }
+
+ if (is_number_pair (flare))
+ span_points -= d * gh_scm2double (index_get_cell (flare, d));
+ }
+ while (flip (&d) != LEFT);
+
+
+ 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
+ {
+ if (!to_boolean (me->get_grob_property ("text-repeat-if-broken"))
+ && broken[d])
+ continue;
+
+ SCM text = index_get_cell (edge_text, d);
+
+ if (Text_item::markup_p (text))
+ edge[d] = *unsmob_molecule (Text_item::interpret_markup (paper->self_scm (), properties, text));
+
+ if (!edge[d].is_empty ())
+ edge[d].align_to (Y_AXIS, CENTER);
+ }
+ while (flip (&d) != LEFT);
+ }
+
+ Drul_array<Real> edge_height = robust_scm2interval (me->get_grob_property ("edge-height"),
+ Interval (0.0, 0.0));
+ Drul_array<Molecule> edge_line;
+ {
+ Direction d = LEFT;
+ int dir = to_dir (me->get_grob_property ("direction"));
+ do
+ {
+ if (broken[d])
+ continue;
+
+ Real dx = 0.0;
+ if (is_number_pair (flare))
+ dx = gh_scm2double (index_get_cell (flare, d)) * d;
+
+ Real dy = - dir * edge_height[d] ;
+ if (dy)
+ edge_line[d] = Line_spanner::line_molecule (me, Offset(0,0), Offset (dx, dy));
+ }
+ while (flip (&d) != LEFT);
+ }
+
+ Molecule m;
+ do
+ {
+ Interval ext = edge[d].extent (X_AXIS);
+ if (!ext.is_empty ())
+ {
+ edge[d].translate_axis (span_points[d], X_AXIS);
+ m.add_molecule (edge[d]);
+ span_points[d] += -d * ext[-d];
+ }
+ }
+ while (flip (&d) != LEFT);
+ do
+ {
+ if (d* span_points[d] > d * edge[-d].extent(X_AXIS)[d])
+ {
+ edge_line[d].translate_axis (span_points[d], X_AXIS);
+ m.add_molecule (edge_line[d]);
+ }
+ }
+ while (flip (&d) != LEFT);
+
+ if (!span_points.is_empty ())
+ {
+ Molecule l =Line_spanner::line_molecule (me, Offset (span_points[LEFT], 0),
+ Offset (span_points[RIGHT], 0));
+ m.add_molecule (l);
+ }
+ m.translate_axis (- me->relative_coordinate (common, X_AXIS), X_AXIS);
+ return m.smobbed_copy ();
}
+ADD_INTERFACE (Text_spanner,"text-spanner-interface",
+ "generic text spanner",
+ "text-repeat-if-broken dash-period if-text-padding dash-fraction edge-height bracket-flare edge-text shorten-pair style thickness enclose-bounds");
-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