+/*
+ text-spanner.cc -- implement Text_spanner
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 2000--2003 Jan Nieuwenhuizen <janneke@gnu.org>
+
+ Revised over good by Han-Wen.
+*/
+
#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 "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)
{
- support = d;
- add_dependency(d);
-}
+ Grob *me= unsmob_grob (smob);
+ Spanner *spanner = dynamic_cast<Spanner*> (me);
+
+ /* Ugh, must be same as Hairpin::brew_molecule. */
+ Real padding = 0.0;
+ SCM itp= me->get_grob_property ("if-text-padding");
+ if (gh_number_p (itp))
+ padding = gh_scm2double (itp);
-Text_spanner::Text_spanner()
-{
- support = 0;
-}
+ Grob *common = spanner->get_bound (LEFT)->common_refpoint (spanner->get_bound (RIGHT), X_AXIS);
+
+ Interval span_points;
+ Drul_array<bool> broken;
+ Direction d = LEFT;
+ do
+ {
+ Item *b = spanner->get_bound (d);
+ broken[d] = b->break_status_dir () != CENTER;
-void
-Text_spanner::do_print() const
-{
- spec.print();
-}
+ 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
+ {
+ bool encl = to_boolean (me->get_grob_property ("enclose-bounds"));
+ span_points[d] = b->extent (common, X_AXIS)[encl ? d : -d];
+ }
+ }
+ while (flip (&d) != LEFT);
-void
-Text_spanner::do_post_processing()
-{
- switch(spec.align_i_) {
- case 0:
- text_off_ = support->center() +
- Offset(0,support->dir_i_ * paper()->internote() * 4); // todo
- break;
- default:
- assert(false);
- break;
- }
-}
-Molecule*
-Text_spanner::brew_molecule_p() const
-{
- Atom tsym (spec.create_atom(paper()));
- tsym.translate(text_off_);
- Molecule*output = new Molecule;
- output->add( tsym );
- return output;
-}
+ 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])
+ continue;
+
+ SCM text = index_get_cell (edge_text, d);
-void
-Text_spanner::do_pre_processing()
-{
- right = support->right;
- left = support->left;
- assert(left && right);
-}
+ if (Text_item::markup_p (text))
+ edge[d] = *unsmob_molecule (Text_item::interpret_markup (smob, properties, text));
+
+ if (!edge[d].empty_b ())
+ edge[d].align_to (Y_AXIS, CENTER);
+ }
+ while (flip (&d) != LEFT);
+ }
-Interval
-Text_spanner::height()const
-{
- return brew_molecule_p()->extent().y;
-}
-Spanner*
-Text_spanner::do_break_at(PCol*c1, PCol*c2)const
-{
- return new Text_spanner(*this); // todo
+ Drul_array<Real> shorten;
+ shorten[LEFT] = 0;
+ shorten[RIGHT] = 0;
+
+ SCM ew = me->get_grob_property ("bracket-flare");
+ SCM s = me->get_grob_property ("shorten-pair");
+ if (gh_pair_p (s))
+ {
+ span_points[LEFT] += gh_scm2double (ly_car (s));
+ span_points[RIGHT] -= gh_scm2double (ly_cdr (s));
+ }
+ if (gh_pair_p (ew))
+ {
+ span_points[LEFT] += gh_scm2double (ly_car (ew));
+ span_points[RIGHT] -= gh_scm2double (ly_cdr (ew));
+ }
+
+ Real thick = me->get_paper ()->get_realvar (ly_symbol2scm ("linethickness"));
+ SCM st = me->get_grob_property ("thickness");
+ if (gh_number_p (st))
+ {
+ thick *= gh_scm2double (st);
+ }
+
+ 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
+ {
+ if (broken[d])
+ continue;
+
+ Real dx = 0.0;
+ if (gh_pair_p (ew))
+ dx = gh_scm2double (index_get_cell (ew, d)) * d;
+
+ Real dy = gh_scm2double (index_get_cell (s, d)) * - dir;
+ if (dy)
+ edge_line[d] = Line_spanner::line_molecule (me, thick, Offset(0,0),
+ Offset (dx, dy));
+ }
+ while (flip (&d) != LEFT);
+ }
+
+ Molecule m;
+ do
+ {
+ Interval ext = edge[d].extent (X_AXIS);
+
+ edge[d].translate_axis (span_points[d], X_AXIS);
+ m.add_molecule (edge[d]);
+ edge_line[d].translate_axis (span_points[d], X_AXIS);
+ m.add_molecule (edge_line[d]);
+ if (!ext.empty_b ())
+ span_points[d] += -d * ext[-d];
+ }
+ while (flip (&d) != LEFT);
+
+ Molecule l =Line_spanner::line_molecule (me, thick,
+ 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",
+ "dash-period if-text-padding dash-length edge-height bracket-flare edge-text shorten-pair style thickness enclose-bounds width-correct");
+
projects / lilypond.git / blobdiff