Hi David!
Sigh. Why do you use set_empty _after_ translation? That makes the
remaining point stick out from the actual glyph. And of course, it
totally moots any effect of set_empty before translation.
It does not matter where set_empty is used, it does not have the desired
effect. I tried a lot of possible places and combinations.
See comments in the following snippet:
Stencil total;
for (int i = 0; i < hyphens; i++)
{
Stencil ds = dash_stencil;
ds.translate_axis (span_points[LEFT] + start_space +
i * (dash_period + dash_length), X_AXIS);
total.add_stencil (ds);
if (whiteout > 0.0 )
{
// A markup property whiteout-markup-wzd is implemented.
// The following definition is used for that property:
// \markup { \with-dimensions #'(0 . 0) #'(0 . 0) {
// \filled-box #'(0.0 . 1.0) #'(-0.5 . 0.5) #0.0 } }
SCM properties = Font_interface::text_font_alist_chain (me);
SCM ws_zd_mod = Text_interface::interpret_markup (
me->layout ()->self_scm (),
properties,
me->get_property ("whiteout-markup-wzd"));
Stencil wsa = *unsmob<Stencil> (ws_zd_mod);
// The following three lines should give an equivalent definition:
Box wb (Interval (0.0, 1.0), Interval (-0.5, 0.5));
Stencil wsb (Lookup::round_filled_box (wb, 0));
wsb.set_empty(false);
Stencil wos;
// If this definition of wos is used everything works as intended,
// collsion detection ignores wos:
wos = wsa.in_color (1.0, 0, 0);
// If this definition is used, collision detection does _not_ ignore
// wos but moves the last lyric line in the testfile down:
//
// wos = wsb.in_color (1.0, 0, 0);
Real xscale = (dash_stencil.extent (X_AXIS).length ()
+ 2 * whiteout * lt);
Real yscale = (dash_stencil.extent (Y_AXIS).length ()
+ 2 * whiteout * lt);
wos.scale(xscale,yscale);
wos.translate_axis (span_points[LEFT] + start_space
+ i * (dash_period + dash_length)
- whiteout * lt, X_AXIS);
Real cory = 0.5 * (dash_stencil.extent (Y_AXIS)[DOWN]
+ dash_stencil.extent (Y_AXIS) [UP]);
wos.translate_axis (cory, Y_AXIS);
total.add_stencil (wos);
}
}
total.translate_axis (-me->relative_coordinate (common, X_AXIS), X_AXIS);
return total.smobbed_copy ();
}
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