/*
+
text-spanner.cc -- implement Text_spanner
source file of the GNU LilyPond music typesetter
- (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2000--2001 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "molecule.hh"
+#include "text-item.hh"
#include "text-spanner.hh"
+#include "line-spanner.hh"
#include "spanner.hh"
-#include "lookup.hh"
+#include "font-interface.hh"
#include "dimensions.hh"
#include "paper-def.hh"
#include "debug.hh"
#include "staff-symbol-referencer.hh"
/*
- Generic Text spanner:
-
- type: "line", "dashed-line", "dotted-line"
- text: "text"
- edge-text: ("le" . "re")
- text-style: "italic"
-
- not-yet-text
- le -------------- re
-
TODO:
- vertical start / vertical end (fixme-name) |
- contination types (vert. star, vert. end) |-> eat volta-spanner
- more styles
- more texts/positions
- - style: hairpin ?
*/
MAKE_SCHEME_CALLBACK (Text_spanner, brew_molecule, 1);
SCM
Text_spanner::brew_molecule (SCM smob)
{
- Score_element *me= unsmob_element (smob);
+ Grob *me= unsmob_grob (smob);
Spanner *spanner = dynamic_cast<Spanner*> (me);
- Real staff_space = Staff_symbol_referencer::staff_space (me);
- Real line = me->paper_l ()->get_var ("stafflinethickness");
-
+
+
+ /* 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
{
- Paper_column* s = dynamic_cast<Paper_column*>(spanner->get_bound (d)); // UGH
- broken[d] = (!s->musical_b ());
+ 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);
-
- 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");
+
+ // 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))
{
- edge[LEFT] = me->lookup_l ()->text (text_style,
- ly_scm2string (gh_car (edge_text)),
- me->paper_l ());
- if (!edge[LEFT].empty_b ())
- edge[LEFT].align_to (Y_AXIS, CENTER);
- edge[RIGHT] = me->lookup_l ()->text (text_style,
- ly_scm2string (gh_cdr (edge_text)),
- me->paper_l ());
- if (!edge[RIGHT].empty_b ())
- edge[RIGHT].align_to (Y_AXIS, CENTER);
+ 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;
- s = me->get_elt_property ("shorten");
+ SCM s = me->get_grob_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;
+ shorten[LEFT] = gh_scm2double (gh_car (s));
+ shorten[RIGHT] = gh_scm2double (gh_cdr (s));
}
- Real broken_left = spanner->get_broken_left_end_align ();
- Real width = spanner->spanner_length ();
- width += spanner->get_bound (RIGHT)->extent (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);
-
- Real height;
- SCM at;
- if (type == "line"
- || type == "dashed-line"
- || type == "dotted-line")
- {
- Real thick = line;
- s = me->get_elt_property ("line-thickness");
- if (gh_number_p (s))
- thick *= gh_scm2double (s);
+ /* ugh */
+ Real thick = me->paper_l ()->get_var ("stafflinethickness");
- // 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;
+ Molecule line;
+ SCM list = Line_spanner::line_atom (me, width, 0);
+ if (list != SCM_EOL)
+ {
- if (type == "dotted-line")
- length = thick;
-
- if (type == "line")
- length = period + thick;
-
- Real on = length - thick;
- Real off = period - on;
-
- height = thick;
- at = gh_list (ly_symbol2scm ("dashed-line"),
- gh_double2scm (thick),
- gh_double2scm (on),
- gh_double2scm (off),
- gh_double2scm (width),
- SCM_UNDEFINED);
+ Box b (Interval (0, width), Interval (-thick / 2, thick / 2));
+ line = Molecule (b, list);
}
- Box b (Interval (0, width), Interval (-height / 2, height / 2));
- Molecule span (b, at);
-
+
+ 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 (!span.empty_b ())
- m.add_at_edge (X_AXIS, RIGHT, span, 0);
+ 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);
+ m.translate_axis (broken_left + extra_off[LEFT], X_AXIS);
- return m.create_scheme ();
+ return m.smobbed_copy ();
}
projects / lilypond.git / blobdiff