/*
- align-interface.cc -- implement Align_interface
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2000--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2000--2009 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "align-interface.hh"
{
assert (a == Y_AXIS);
Interval extent = g->pure_height (g, start, end);
- if (!extent.is_empty ())
- {
- Box b;
- b[a] = extent;
- b[other_axis (a)] = Interval (0, infinity_f);
- skylines.insert (b, 0, other_axis (a));
- }
// This is a hack to get better accuracy on the pure-height of VerticalAlignment.
// It's quite common for a treble clef to be the highest element of one system
if (Axis_group_interface::has_interface (g)
&& !Hara_kiri_group_spanner::request_suicide (g, start, end))
{
+ extent = Axis_group_interface::rest_of_line_pure_height (g, start, end);
Interval begin_of_line_extent = Axis_group_interface::begin_of_line_pure_height (g, start);
if (!begin_of_line_extent.is_empty ())
{
skylines.insert (b, 0, other_axis (a));
}
}
+
+ if (!extent.is_empty ())
+ {
+ Box b;
+ b[a] = extent;
+ b[other_axis (a)] = Interval (0, infinity_f);
+ skylines.insert (b, 0, other_axis (a));
+ }
}
if (skylines.is_empty ())
get_skylines (me, &elems, a, pure, start, end, &skylines);
- SCM forced_distances = ly_assoc_get (ly_symbol2scm ("alignment-distances"),
- Page_layout_problem::get_details (me),
- SCM_EOL);
-
Real where = 0;
Real default_padding = robust_scm2double (me->get_property ("padding"), 0.0);
vector<Real> translates;
Skyline down_skyline (stacking_dir);
- SCM last_spaceable_element_details = SCM_EOL;
Real last_spaceable_element_pos = 0;
- bool found_spaceable_element = false;
+ Grob *last_spaceable_element = 0;
for (vsize j = 0; j < elems.size (); j++)
{
Real dy = 0;
{
down_skyline.merge (skylines[j-1][stacking_dir]);
dy = down_skyline.distance (skylines[j][-stacking_dir]);
- }
- if (isinf (dy)) /* if the skyline is empty, maybe max_height is infinity_f */
- dy = 0.0;
+ SCM spec = Page_layout_problem::get_spacing_spec (elems[j-1], elems[j]);
+ Page_layout_problem::read_spacing_spec (spec, &padding, ly_symbol2scm ("padding"));
- if (Page_layout_problem::is_spaceable (elems[j]))
- {
Real min_distance = 0;
- Page_layout_problem::read_spacing_spec (last_spaceable_element_details,
- &padding,
- ly_symbol2scm ("padding"));
- if (Page_layout_problem::read_spacing_spec (last_spaceable_element_details,
- &min_distance,
- ly_symbol2scm ("minimum-distance")))
- dy = max (dy, min_distance + stacking_dir*(last_spaceable_element_pos - where));
-
- if (found_spaceable_element && scm_is_pair (forced_distances))
- {
- SCM forced_dist = scm_car (forced_distances);
- forced_distances = scm_cdr (forced_distances);
+ if (Page_layout_problem::read_spacing_spec (spec, &min_distance, ly_symbol2scm ("minimum-distance")))
+ dy = max (dy, min_distance);
- if (scm_is_number (forced_dist))
- dy = scm_to_double (forced_dist) + stacking_dir * (last_spaceable_element_pos - where);
+ if (Page_layout_problem::is_spaceable (elems[j]) && last_spaceable_element)
+ {
+ // Spaceable staves may have min-distance and padding
+ // constraints coming from the previous spaceable staff
+ // as well as from the previous staff.
+ spec = Page_layout_problem::get_spacing_spec (last_spaceable_element, elems[j]);
+ Real spaceable_padding = 0;
+ Page_layout_problem::read_spacing_spec (spec,
+ &spaceable_padding,
+ ly_symbol2scm ("padding"));
+ padding = max (padding, spaceable_padding);
+
+ Real min_distance = 0;
+ if (Page_layout_problem::read_spacing_spec (spec,
+ &min_distance,
+ ly_symbol2scm ("minimum-distance")))
+ dy = max (dy, min_distance + stacking_dir*(last_spaceable_element_pos - where));
}
- last_spaceable_element_details = elems[j]->get_property ("next-staff-spacing");
- found_spaceable_element = true;
- }
- else
- {
- // TODO: provide support for min-distance and padding for non-spaceable elements also.
}
+ if (isinf (dy)) /* if the skyline is empty, maybe max_height is infinity_f */
+ dy = 0.0;
+
dy = max (0.0, dy + padding);
down_skyline.raise (-stacking_dir * dy);
where += stacking_dir * dy;
translates.push_back (where);
if (Page_layout_problem::is_spaceable (elems[j]))
- last_spaceable_element_pos = where;
+ {
+ last_spaceable_element = elems[j];
+ last_spaceable_element_pos = where;
+ }
}
// So far, we've computed the translates for all the non-empty elements.
Align_interface::align_elements_to_ideal_distances (Grob *me)
{
System *sys = me->get_system ();
- Page_layout_problem layout (NULL, SCM_EOL, scm_list_1 (sys->self_scm ()));
-
- layout.solution (true);
+ if (sys)
+ {
+ Page_layout_problem layout (NULL, SCM_EOL, scm_list_1 (sys->self_scm ()));
+ layout.solution (true);
+ }
+ else
+ programming_error ("vertical alignment called before line breaking");
}
void
" or bottom to top. For vertical alignments of staves, the"
" @code{break-system-details} of the left"
" @rinternals{NonMusicalPaperColumn} may be set to tune"
- " vertical spacing. Set @code{alignment-extra-space} to add"
- " extra space for staves. Set"
- " @code{fixed-alignment-extra-space} to force staves in"
- " @code{PianoStaff}s further apart.",
+ " vertical spacing.",
/* properties */
"align-dir "
"padding "
"positioning-done "
"stacking-dir "
- "threshold "
);
projects / lilypond.git / blobdiff