source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include <math.h>
+#include "main.hh"
+#include "dimensions.hh"
+#include "dimension-cache.hh"
#include "bar.hh"
#include "string.hh"
#include "molecule.hh"
#include "paper-def.hh"
#include "lookup.hh"
#include "debug.hh"
+#include "all-font-metrics.hh"
-Bar::Bar()
+Bar::Bar ()
{
- breakable_b_ = true;
- type_str_ = "|";
- spanned_i_ = 0;
+ set_elt_property ("breakable", SCM_BOOL_T);
}
+Real
+Bar::get_bar_size () const
+{
+ // Never called!
+ return 0;
+}
-IMPLEMENT_IS_TYPE_B1(Bar,Item);
-void
-Bar::do_print() const
+Molecule
+Bar::do_brew_molecule () const
{
- DOUT << type_str_;
+ SCM s = get_elt_property ("glyph");
+ if (gh_string_p (s))
+ {
+ String str =ly_scm2string (s);
+ return compound_barline (str, get_bar_size ());
+ }
+ return Molecule ();
}
-Molecule*
-Bar::brew_molecule_p() const
-{
- Paper_def *p = paper();
- Symbol s = p->lookup_l()->bar (type_str_,
- p->get_var ("bar_size"));
- Molecule*output = new Molecule (Atom (s));
- return output;
+
+Molecule
+Bar::compound_barline (String str, Real h) const
+{
+ Real kern = paper_l()->get_var ("bar_kern");
+ Real thinkern = paper_l()->get_var ("bar_thinkern");
+
+ Molecule thin = simple_barline (paper_l()->get_var ("barthick_thin"), h);
+ Molecule thick = simple_barline (paper_l()->get_var ("barthick_thick"), h);
+ Molecule colon = lookup_l ()->afm_find ("dots-repeatcolon");
+
+ Molecule m;
+
+ if (str == "")
+ {
+ return lookup_l ()->blank (Box (Interval(0, 0), Interval (-h/2, h/2)));
+ }
+ if (str == "scorepostbreak")
+ {
+ return simple_barline (paper_l ()->get_var ("barthick_score"), h);
+ }
+ else if (str == "|")
+ {
+ return thin;
+ }
+ else if (str == "|.")
+ {
+ m.add_at_edge (X_AXIS, LEFT, thick, 0);
+ m.add_at_edge (X_AXIS, LEFT, thin, kern);
+ }
+ else if (str == ".|")
+ {
+ m.add_at_edge (X_AXIS, RIGHT, thick, 0);
+ m.add_at_edge (X_AXIS, RIGHT, thin, kern);
+ }
+ else if (str == ":|")
+ {
+ m.add_at_edge (X_AXIS, LEFT, thick, 0);
+ m.add_at_edge (X_AXIS, LEFT, thin, kern);
+ m.add_at_edge (X_AXIS, LEFT, colon, kern);
+ }
+ else if (str == "|:")
+ {
+ m.add_at_edge (X_AXIS, RIGHT, thick, 0);
+ m.add_at_edge (X_AXIS, RIGHT, thin, kern);
+ m.add_at_edge (X_AXIS, RIGHT, colon, kern);
+ }
+ else if (str == ":|:")
+ {
+ m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
+ m.add_at_edge (X_AXIS, LEFT, colon, kern);
+ m.add_at_edge (X_AXIS, RIGHT, thick, kern);
+ m.add_at_edge (X_AXIS, RIGHT, colon, kern);
+ }
+ else if (str == ".|.")
+ {
+ m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
+ m.add_at_edge (X_AXIS, RIGHT, thick, kern);
+ }
+ else if (str == "||")
+ {
+ m.add_at_edge (X_AXIS, RIGHT, thin, 0);
+ m.add_at_edge (X_AXIS, RIGHT, thin, thinkern);
+ }
+
+ return m;
+}
+
+
+Molecule
+Bar::simple_barline (Real w, Real h) const
+{
+ return lookup_l ()->filledbox (Box (Interval(0,w), Interval(-h/2, h/2)));
}
-/**
- Prescriptions for splitting bars.
- TODO: parametrise this (input-settable)
- */
-static char const *bar_breaks[][3] ={
- {":|", ":|:", "|:"},
- {"|", "|", ""},
- {"", "|:", "|:"},
- {"||.", "||.", ""},
- {":|", ":|", ""},
- {0,0,0}
-};
void
-Bar::do_pre_processing()
+Bar::before_line_breaking ()
{
- for (int i=0; bar_breaks[i][0]; i++)
+ SCM g = get_elt_property ("glyph");
+ Direction bsd = break_status_dir ();
+ if (gh_string_p (g))
{
- if (bar_breaks[i][1] == type_str_)
- type_str_ = bar_breaks[i][break_status_i()+1];
+ if (bsd)
+ {
+ SCM breakdir = gh_int2scm (bsd);
+ g = scm_eval (gh_list (ly_symbol2scm ("break-barline"),
+ g,
+ breakdir,
+ SCM_UNDEFINED));
+ }
+ }
+ else
+ {
+ g = SCM_UNDEFINED;
}
- /*
- span_score_bar needs dims, so don't do
-
- transparent_b_ = empty_b_ = (type_str_ == "");
-
- */
+ if (!gh_string_p (g))
+ {
+ set_elt_property ("transparent", SCM_BOOL_T);
+ set_extent_callback (0, X_AXIS);
+ }
+ else
+ set_elt_property ("glyph", g);
}
+