source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "molecule.hh"
-#include "boxes.hh"
#include "text-spanner.hh"
-#include "text-def.hh"
-#include "debug.hh"
+#include "spanner.hh"
+#include "lookup.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;
-}
-
+#include "debug.hh"
+#include "paper-column.hh"
+#include "staff-symbol-referencer.hh"
-IMPLEMENT_IS_TYPE_B1(Text_spanner,Spanner);
+/*
+ Generic Text spanner:
-void
-Text_spanner::do_print() const
-{
- spec_p_->print();
-}
+ type: "line", "dashed-line", "dotted-line"
+ edge-text: ("le" . "re")
+ text-style: "italic"
+ egde-height: (lh . rh)
-void
-Text_spanner::do_post_processing()
-{
- text_off_ = support_span_l_->center() +
- Offset (0,support_span_l_->dir_i_ * paper()->internote_f () * 4); // todo
-}
+ "le"--------------"re"
+ |^
+ |v rh
-Molecule*
-Text_spanner::brew_molecule_p() const
-{
- Atom tsym (spec_p_->get_atom (paper(),0));
- tsym.translate (text_off_);
+ fine tuning:
- Molecule*output = new Molecule;
- output->add (tsym);
- return output;
-}
+ dash-period
+ dash-length
+ line-thickness
-void
-Text_spanner::do_pre_processing()
-{
- right_col_l_ = support_span_l_->right_col_l_;
- left_col_l_ = support_span_l_->left_col_l_;
- assert (left_col_l_ && right_col_l_);
-}
+ TODO:
+ - vertical start / vertical end (fixme-name) |
+ - contination types (vert. star, vert. end) |-> eat volta-spanner
+ - more styles
+ - more texts/positions
+ - style: hairpin ?
+ */
-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);
+ Score_element *me= unsmob_element (smob);
+ Spanner *spanner = dynamic_cast<Spanner*> (me);
+
+ Real staff_space = Staff_symbol_referencer::staff_space (me);
+ Real thickness = me->paper_l ()->get_var ("stafflinethickness");
+
+
+ Drul_array<bool> broken;
+ Direction d = LEFT;
+ do
+ {
+ Paper_column* s = dynamic_cast<Paper_column*>(spanner->get_bound (d)); // UGH
+ broken[d] = (!s->musical_b ());
+ }
+ while (flip (&d) != LEFT);
+
+ SCM s = me->get_elt_property ("text-style");
+ String text_style = "italic";
+ if (gh_string_p (s))
+ text_style = ly_scm2string (s);
+
+ SCM edge_text = me->get_elt_property ("edge-text");
+ Drul_array<Molecule> edge;
+ if (gh_pair_p (edge_text))
+ {
+ Direction d = LEFT;
+ do
+ {
+ String text = ly_scm2string (index_cell (edge_text, d));
+ edge[d] = me->lookup_l ()->text (text_style, text, me->paper_l ());
+ if (!edge[d].empty_b ())
+ edge[d].align_to (Y_AXIS, CENTER);
+ }
+ while (flip (&d) != LEFT);
+ }
+
+ Drul_array<Real> shorten;
+ shorten[LEFT] = 0;
+ shorten[RIGHT] = 0;
+
+ s = me->get_elt_property ("shorten");
+ if (gh_pair_p (s))
+ {
+ shorten[LEFT] = gh_scm2double (gh_car (s)) * staff_space;
+ shorten[RIGHT] = gh_scm2double (gh_cdr (s)) * staff_space;
+ }
+
+ Real broken_left = spanner->get_broken_left_end_align ();
+ Real width = spanner->spanner_length ();
+ Score_element *bnd = spanner->get_bound (RIGHT);
+ width += bnd->extent (bnd, X_AXIS).length ();
+ width -= broken_left;
+ width -= shorten[LEFT] + shorten[RIGHT];
+ width -= edge[LEFT].extent (X_AXIS).length ()
+ + edge[RIGHT].extent (X_AXIS).length ();
+
+ if (width < 0)
+ {
+ warning (_ ("Text_spanner too small"));
+ width = 0;
+ }
+
+
+ String type = "dashed-line";
+ s = me->get_elt_property ("type");
+ if (gh_string_p (s))
+ type = ly_scm2string (s);
+
+ Molecule line;
+ Drul_array<Molecule> edge_line;
+ if (type == "line"
+ || type == "dashed-line"
+ || type == "dotted-line")
+ {
+ Real thick = thickness;
+ s = me->get_elt_property ("line-thickness");
+ if (gh_number_p (s))
+ thick *= gh_scm2double (s);
+
+ // maybe these should be in line-thickness?
+ Real length = staff_space;
+ s = me->get_elt_property ("dash-length");
+ if (gh_number_p (s))
+ length = gh_scm2double (s) * staff_space;
+
+ Real period = 2 * length + thick;
+ s = me->get_elt_property ("dash-period");
+ if (gh_number_p (s))
+ period = gh_scm2double (s) * staff_space;
+
+ if (type == "dotted-line")
+ length = thick;
+
+ if (type == "line")
+ length = period + thick;
+
+ Real on = length - thick;
+ Real off = period - on;
+
+ SCM list = gh_list (ly_symbol2scm ("dashed-line"),
+ gh_double2scm (thick),
+ gh_double2scm (on),
+ gh_double2scm (off),
+ gh_double2scm (width),
+ gh_double2scm (0),
+ SCM_UNDEFINED);
+
+ Box b (Interval (0, width), Interval (-thick / 2, thick / 2));
+ line = Molecule (b, list);
+
+ s = me->get_elt_property ("edge-height");
+ if (gh_pair_p (s))
+ {
+ Direction d = LEFT;
+ int dir = me->get_elt_property ("direction");
+ do
+ {
+ Real dy = gh_scm2double (index_cell (s, d)) * - dir;
+ if (dy)
+ {
+ SCM list = gh_list (ly_symbol2scm ("dashed-line"),
+ gh_double2scm (thick),
+ gh_double2scm (on),
+ gh_double2scm (off),
+ gh_double2scm (0),
+ gh_double2scm (dy),
+ SCM_UNDEFINED);
+
+ 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, X_AXIS);
+
+ return m.create_scheme ();
}
-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