-Stencil
-Bar_line::dashed_bar_line (Grob *me, Real h, Real thick)
-{
- Real dash_size
- = 1.0 - robust_scm2double (me->get_property ("gap"), 0.3);
- /*
- this is a tad complex for what we want to achieve, but with a
- simple line, the round blotting interferes with staff line
- connections.
- */
- Real ss = Staff_symbol_referencer::staff_space (me);
- int count = Staff_symbol_referencer::line_count (me);
- Real line_thick = Staff_symbol_referencer::line_thickness (me);
-
- if (fabs (line_thick + (count -1) * ss - h) < 0.1) // ugh.
- {
- Real blot =
- me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"));
-
- Real half_space = ss/2;
- Stencil bar;
-
- for (int i = (count-1); i >= -(count-1); i -= 2)
- {
- Real top_y = min ((i + dash_size) * half_space,
- (count-1) * half_space + line_thick / 2);
- Real bot_y = max ((i - dash_size) * half_space,
- -(count-1) * half_space - line_thick/2);
-
- bar.add_stencil (Lookup::round_filled_box (Box (Interval (0,thick),
- Interval (bot_y, top_y)),
- blot));
- }
- return bar;
- }
- else
- {
- /*
- We have to scale the dashing so it starts and ends with half a
- dash exactly.
- */
- int dashes = int (rint (h / ss));
- Real total_dash_size = h / dashes;
- Real factor = (dash_size - thick) / ss;
-
- SCM at = scm_list_n (ly_symbol2scm ("dashed-line"),
- scm_from_double (thick),
- scm_from_double (factor * total_dash_size),
- scm_from_double ((1-factor) * total_dash_size),
- scm_from_double (0),
- scm_from_double (h),
- scm_from_double (factor * total_dash_size * 0.5),
- SCM_UNDEFINED);
-
- Box box;
- box.add_point (Offset (0, 0));
- box.add_point (Offset (0, h));
-
- Stencil s (box, at);
- s.translate (Offset (thick/2, -h/2));
- return s;
- }
- return Stencil();
-}
-
-