/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1998--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 1998--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
LilyPond is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Real
Separation_item::set_distance (Item *l, Item *r, Real padding)
{
- Drul_array<Skyline_pair *> lines (Skyline_pair::unsmob (l->get_property ("horizontal-skylines")),
- Skyline_pair::unsmob (r->get_property ("horizontal-skylines")));
+ Drul_array<Skyline_pair *> lines (unsmob<Skyline_pair> (l->get_property ("horizontal-skylines")),
+ unsmob<Skyline_pair> (r->get_property ("horizontal-skylines")));
Skyline right = conditional_skyline (r, l);
right.merge ((*lines[RIGHT])[LEFT]);
bool
Separation_item::is_empty (Grob *me)
{
- Skyline_pair *sky = Skyline_pair::unsmob (me->get_property ("horizontal-skylines"));
+ Skyline_pair *sky = unsmob<Skyline_pair> (me->get_property ("horizontal-skylines"));
return (!sky || sky->is_empty ());
}
Separation_item::conditional_skyline (Grob *me, Grob *left)
{
vector<Box> bs = boxes (me, left);
- Real horizon_padding = robust_scm2double (me->get_property ("skyline-vertical-padding"), 0.0);
- return Skyline (bs, horizon_padding, Y_AXIS, LEFT);
+ return Skyline (bs, Y_AXIS, LEFT);
}
MAKE_SCHEME_CALLBACK (Separation_item, calc_skylines, 1);
SCM
Separation_item::calc_skylines (SCM smob)
{
- Item *me = unsmob_item (smob);
+ Item *me = unsmob<Item> (smob);
vector<Box> bs = boxes (me, 0);
- Real horizon_padding = robust_scm2double (me->get_property ("skyline-vertical-padding"), 0.0);
- return Skyline_pair (bs, horizon_padding, Y_AXIS).smobbed_copy ();
+ Skyline_pair sp (bs, Y_AXIS);
+ /*
+ TODO: We need to decide if padding is 'intrinsic'
+ to a skyline or if it is something that is only added on in
+ distance calculations. Here, we make it intrinsic, which copies
+ the behavior from the old code but no longer corresponds to how
+ vertical skylines are handled (where padding is not built into
+ the skyline).
+ */
+ Real vp = robust_scm2double (me->get_property ("skyline-vertical-padding"), 0.0);
+ sp[LEFT] = sp[LEFT].padded (vp);
+ sp[RIGHT] = sp[RIGHT].padded (vp);
+ return sp.smobbed_copy ();
}
-/* if left is non-NULL, get the boxes corresponding to the
- conditional-elements (conditioned on the grob LEFT). This
- sounds more general than it is: conditional-elements are
- always accidentals attached to a tied note.
+/*
+ If left is non-NULL, get the boxes corresponding to the
+ conditional-elements (conditioned on the grob LEFT).
+ Conditional elements are, for now, arpeggios and accidental
+ placements. Based on the left grob, the accidentals will
+ be printed or not, so we filter using
+ Accidental_placement::get_relevant_accidentals.
*/
vector<Box>
Separation_item::boxes (Grob *me, Grob *left)
vector<Grob *> elts;
if (left)
- elts = Accidental_placement::get_relevant_accidentals (read_only_elts, left);
+ {
+ vector<Grob *> accidental_elts;
+ vector<Grob *> other_elts; // for now only arpeggios
+ for (vsize i = 0; i < read_only_elts.size (); i++)
+ {
+ if (has_interface<Accidental_placement> (read_only_elts[i]))
+ accidental_elts.push_back (read_only_elts[i]);
+ else
+ other_elts.push_back (read_only_elts[i]);
+ }
+ elts = Accidental_placement::get_relevant_accidentals (accidental_elts, left);
+ elts.insert (elts.end (), other_elts.begin (), other_elts.end ());
+ }
else
elts = read_only_elts;
bounds all of them). However, we can't exclude an axis-group that
adds to its childrens' stencil. Currently, this is just TrillPitchGroup;
hence the check for note-head-interface. */
- if (Axis_group_interface::has_interface (il)
- && !Note_head::has_interface (il))
+ if (has_interface<Axis_group_interface> (il)
+ && !has_interface<Note_head> (il))
continue;
- Interval y (il->pure_height (ycommon, 0, very_large));
+ Interval y (il->pure_y_extent (ycommon, 0, very_large));
Interval x (il->extent (pc, X_AXIS));
Interval extra_width = robust_scm2interval (elts[i]->get_property ("extra-spacing-width"),
Interval extra_height = robust_scm2interval (elts[i]->get_property ("extra-spacing-height"),
Interval (0.0, 0.0));
- x[LEFT] += extra_width[LEFT];
- x[RIGHT] += extra_width[RIGHT];
- y[DOWN] += extra_height[DOWN];
- y[UP] += extra_height[UP];
+ // The conventional empty extent is (+inf.0 . -inf.0)
+ // but (-inf.0 . +inf.0) is used as extra-spacing-height
+ // on items that must not overlap other note-columns.
+ // If these two uses of inf combine, leave the empty extent.
+
+ if (!isinf (x[LEFT]))
+ x[LEFT] += extra_width[LEFT];
+ if (!isinf (x[RIGHT]))
+ x[RIGHT] += extra_width[RIGHT];
+ if (!isinf (y[DOWN]))
+ y[DOWN] += extra_height[DOWN];
+ if (!isinf (y[UP]))
+ y[UP] += extra_height[UP];
if (!x.is_empty () && !y.is_empty ())
out.push_back (Box (x, y));
return out;
}
-MAKE_SCHEME_CALLBACK (Separation_item, print, 1)
+MAKE_DOCUMENTED_SCHEME_CALLBACK (Separation_item, print, 1,
+ "Optional stencil for @code{PaperColumn} or"
+ "@code{NonMusicalPaperColumn}.\n"
+ "Draws the @code{horizontal-skylines} of each"
+ " @code{PaperColumn}, showing the shapes used"
+ " to determine the minimum distances between"
+ " @code{PaperColumns} at the note-spacing step,"
+ " before staves have been spaced (vertically)"
+ " on the page.")
SCM
Separation_item::print (SCM smob)
{
if (!debug_skylines)
return SCM_BOOL_F;
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
Stencil ret;
- if (Skyline_pair *s = Skyline_pair::unsmob (me->get_property ("horizontal-skylines")))
+ if (Skyline_pair *s = unsmob<Skyline_pair> (me->get_property ("horizontal-skylines")))
{
ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[LEFT].to_points (Y_AXIS)).in_color (255, 255, 0));
ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[RIGHT].to_points (Y_AXIS)).in_color (0, 255, 255));