source file of the GNU LilyPond music typesetter
- (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
+#include "staff-symbol.hh"
+
#include "lookup.hh"
#include "dimensions.hh"
-#include "paper-def.hh"
-#include "stencil.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,print,1);
+MAKE_SCHEME_CALLBACK (Staff_symbol, print, 1);
SCM
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);
-
- Interval span_points (0,0);
-
+
+ Interval span_points (0, 0);
/*
- For raggedright without ragged staffs, simply set width to the linewidth.
+ For raggedright without ragged staves, simply set width to the linewidth.
(ok -- lousy UI, since width is in staff spaces)
--hwn.
- */
+ */
+ Real t = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
+ t *= robust_scm2double (me->get_property ("thickness"), 1.0);
+
Direction d = LEFT;
do
{
SCM width_scm = me->get_property ("width");
- if (d == RIGHT && gh_number_p (width_scm))
+ 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] = gh_scm2double (width_scm);
+ */
+ span_points[RIGHT] = scm_to_double (width_scm);
}
else
{
- Item * x = sp->get_bound (d);
+ Item *x = sp->get_bound (d);
- span_points[d] = x->relative_coordinate (common , X_AXIS);
+ 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);
+ while (flip (&d) != LEFT);
+ Stencil m;
- Real t = me->get_paper ()->get_realvar (ly_symbol2scm ("linethickness"));
- t *= robust_scm2double (me->get_property ("thickness"), 1.0);
-
- int l = Staff_symbol::line_count (me);
-
- Real height = (l-1) * staff_space (me) /2;
- Stencil a =
- Lookup::horizontal_line (span_points
- -me->relative_coordinate (common, X_AXIS),
- t);
+ SCM line_positions = me->get_property ("line-positions");
+ Stencil line
+ = Lookup::horizontal_line (span_points
+ -me->relative_coordinate (common, X_AXIS),
+ t);
- Stencil m;
- for (int i=0; i < l; i++)
+ Real space = staff_space (me);
+ if (scm_is_pair (line_positions))
{
- Stencil b(a);
- b.translate_axis (height - i * staff_space (me), Y_AXIS);
- m.add_stencil (b);
+ for (SCM s = line_positions; scm_is_pair (s);
+ s = scm_cdr (s))
+ {
+ Stencil b (line);
+ b.translate_axis (scm_to_double (scm_car (s))
+ * 0.5 * space, Y_AXIS);
+ m.add_stencil (b);
+ }
+ }
+ else
+ {
+ int l = Staff_symbol::line_count (me);
+ Real height = (l - 1) * staff_space (me) / 2;
+ for (int i = 0; i < l; i++)
+ {
+ Stencil b (line);
+ b.translate_axis (height - i * space, 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_property ("line-count");
- if (gh_number_p (c))
- return gh_scm2int (c);
+ 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_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 ("line-thickness"));
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_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);
+}
+
+MAKE_SCHEME_CALLBACK (Staff_symbol, height,1);
+SCM
+Staff_symbol::height (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ Real t = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
+ t *= robust_scm2double (me->get_property ("thickness"), 1.0);
- return z[X_AXIS] * get_line_thickness (me) + z[Y_AXIS]* staff_space (me);
+ SCM line_positions = me->get_property ("line-positions");
+
+ Interval y_ext;
+ Real space = staff_space (me);
+ if (scm_is_pair (line_positions))
+ {
+ for (SCM s = line_positions; scm_is_pair (s);
+ s = scm_cdr (s))
+ y_ext.add_point (scm_to_double (scm_car (s)) * 0.5 * space);
+ }
+ else
+ {
+ int l = Staff_symbol::line_count (me);
+ Real height = (l - 1) * staff_space (me) / 2;
+ y_ext = Interval (-height, height);
+ }
+ y_ext.widen (t/2);
+ return ly_interval2scm (y_ext);
}
+bool
+Staff_symbol::on_line (Grob *me, int pos)
+{
+ SCM line_positions = me->get_property ("line-positions");
+ if (scm_is_pair (line_positions))
+ {
+ Real min_line = HUGE_VAL;
+ Real max_line = -HUGE_VAL;
+ for (SCM s = line_positions; scm_is_pair (s); s = scm_cdr (s))
+ {
+ Real current_line = scm_to_double (scm_car (s));
+ if (pos == current_line)
+ return true;
+ if (current_line > max_line)
+ max_line = current_line;
+ if (current_line < min_line)
+ min_line = current_line;
+
+ }
+ if (pos < min_line)
+ return (( (int) (rint (pos - min_line)) % 2) == 0);
+ if (pos > max_line)
+ return (( (int) (rint (pos - max_line)) % 2) == 0);
+
+ return false;
+ }
+ else
+ return ((abs (pos + line_count (me)) % 2) == 1);
+}
-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. ",
-
- "ledger-line-thickness width staff-space thickness line-count");
+ADD_INTERFACE (Staff_symbol,
+ "This spanner draws the lines of a staff. A staff symbol"
+ " defines a vertical unit, the @emph{staff space}. Quantities"
+ " that go by a half staff space are called @emph{positions}."
+ " The center (i.e., middle line or space) is position@tie{}0."
+ " The length of the symbol may be set by hand through the"
+ " @code{width} property.",
+
+ /* properties */
+ "ledger-line-thickness "
+ "line-count "
+ "line-positions "
+ "staff-space "
+ "thickness "
+ "width "
+ );
projects / lilypond.git / blobdiff