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)
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,
- "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. ",
-
+ "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 "