source file of the GNU LilyPond music typesetter
- (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include "staff-symbol.hh"
+
#include "lookup.hh"
#include "dimensions.hh"
-#include "paper-def.hh"
-#include "molecule.hh"
+#include "output-def.hh"
#include "warn.hh"
#include "item.hh"
-#include "staff-symbol.hh"
#include "staff-symbol-referencer.hh"
#include "spanner.hh"
-
-
-MAKE_SCHEME_CALLBACK (Staff_symbol,brew_molecule,1);
+MAKE_SCHEME_CALLBACK (Staff_symbol, print, 1);
SCM
-Staff_symbol::brew_molecule (SCM smob)
+Staff_symbol::print (SCM smob)
{
Grob *me = unsmob_grob (smob);
- Spanner* sp = dynamic_cast<Spanner*> (me);
- Grob * common
+ Spanner *sp = dynamic_cast<Spanner *> (me);
+ Grob *common
= sp->get_bound (LEFT)->common_refpoint (sp->get_bound (RIGHT), X_AXIS);
-
- Real width = 0.0;
+
+ Interval span_points (0, 0);
/*
For raggedright without ragged staffs, simply set width to the linewidth.
(ok -- lousy UI, since width is in staff spaces)
--hwn.
- */
- SCM width_scm = me->get_grob_property ("width");
- if (gh_number_p (width_scm))
- {
+ */
+ Real t = me->layout ()->get_dimension (ly_symbol2scm ("linethickness"));
+ t *= robust_scm2double (me->get_property ("thickness"), 1.0);
- /*
- don't multiply by Staff_symbol_referencer::staff_space (me),
- since that would make aligning staff symbols of different sizes to
- one right margin hell.
- */
- width = gh_scm2double (width_scm);
- }
- else
+ Direction d = LEFT;
+ do
{
- width = sp->get_bound (RIGHT)->relative_coordinate (common , X_AXIS);
+ SCM width_scm = me->get_property ("width");
+ if (d == RIGHT && scm_is_number (width_scm))
+ {
+ /*
+ don't multiply by Staff_symbol_referencer::staff_space (me),
+ since that would make aligning staff symbols of different sizes to
+ one right margin hell.
+ */
+ span_points[RIGHT] = scm_to_double (width_scm);
+ }
+ else
+ {
+ Item *x = sp->get_bound (d);
+
+ span_points[d] = x->relative_coordinate (common, X_AXIS);
+ if (!x->break_status_dir ()
+ && !x->extent (x, X_AXIS).is_empty ())
+ span_points[d] += x->extent (x, X_AXIS)[d];
+ }
+
+ span_points[d] -= d* t / 2;
}
+ while (flip (&d) != LEFT);
- // respect indentation, if any
- width -= sp->get_bound (LEFT)->relative_coordinate (common, X_AXIS);
+ int l = Staff_symbol::line_count (me);
- if (width < 0)
- {
- warning (_f ("staff symbol: indentation yields beyond end of line"));
- width = 0;
- }
+ Real height = (l - 1) * staff_space (me) / 2;
+ Stencil a
+ = Lookup::horizontal_line (span_points
+ -me->relative_coordinate (common, X_AXIS),
+ t);
- Real t = me->get_paper ()->get_realvar (ly_symbol2scm ("linethickness"));
- t *= robust_scm2double ( me->get_grob_property("thickness"), 1.0);
-
- int l = Staff_symbol::line_count (me);
-
- Real height = (l-1) * staff_space (me) /2;
- Molecule m;
- for (int i=0; i < l; i++)
+ Stencil m;
+ for (int i = 0; i < l; i++)
{
- Molecule a =
- Lookup::horizontal_line (Interval (0,width), t);
-
- a.translate_axis (height - i * staff_space (me), Y_AXIS);
- m.add_molecule (a);
+ Stencil b (a);
+ b.translate_axis (height - i * staff_space (me), Y_AXIS);
+ m.add_stencil (b);
}
-
return m.smobbed_copy ();
}
int
-Staff_symbol::get_steps (Grob*me)
+Staff_symbol::get_steps (Grob *me)
{
return line_count (me) * 2;
}
int
-Staff_symbol::line_count (Grob*me)
+Staff_symbol::line_count (Grob *me)
{
- SCM c = me->get_grob_property ("line-count");
- if (gh_number_p (c))
- return gh_scm2int (c);
+ SCM c = me->get_property ("line-count");
+ if (scm_is_number (c))
+ return scm_to_int (c);
else
return 0;
}
Real
-Staff_symbol::staff_space (Grob*me)
+Staff_symbol::staff_space (Grob *me)
{
- return robust_scm2double ( me->get_grob_property ("staff-space"), 1.0);
+ return robust_scm2double (me->get_property ("staff-space"), 1.0);
}
Real
-Staff_symbol::get_line_thickness (Grob* me)
+Staff_symbol::get_line_thickness (Grob *me)
{
- Real lt = me->get_paper ()->get_realvar (ly_symbol2scm ("linethickness"));
+ Real lt = me->layout ()->get_dimension (ly_symbol2scm ("linethickness"));
- return robust_scm2double (me->get_grob_property ("thickness"), 1.0) * lt;
+ return robust_scm2double (me->get_property ("thickness"), 1.0) * lt;
}
Real
-Staff_symbol::get_ledger_line_thickness (Grob * me)
+Staff_symbol::get_ledger_line_thickness (Grob *me)
{
- SCM lt_pair = me->get_grob_property ("ledger-line-thickness");
+ SCM lt_pair = me->get_property ("ledger-line-thickness");
Offset z = robust_scm2offset (lt_pair, Offset (1.0, 0.1));
-
- return z[X_AXIS] * get_line_thickness(me) + z[Y_AXIS]* staff_space (me);
+
+ return z[X_AXIS] * get_line_thickness (me) + z[Y_AXIS] * staff_space (me);
}
+ADD_INTERFACE (Staff_symbol, "staff-symbol-interface",
+ "This spanner draws the lines of a staff. "
+ "A staff symbol definines a vertical unit, the staff space. "
+ "Quantities that go by a half staff space are called positions "
+ "The center (i.e. middle line "
+ "or space) is position 0. The length of the symbol may be set by hand "
+ "through the @code{width} property. ",
-ADD_INTERFACE (Staff_symbol,"staff-symbol-interface",
- "This spanner draws the lines of a staff. The center (i.e. middle line "
-"or space) is position 0. The length of the symbol may be set by hand "
-"through the @code{width} property. ",
-
- "ledger-line-thickness width staff-space thickness line-count");
+ "ledger-line-thickness width staff-space thickness line-count");
projects / lilypond.git / blobdiff