/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 2000--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 2000--2011 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
vector<Real>
Align_interface::get_minimum_translations (Grob *me,
vector<Grob*> const &all_grobs,
- Axis a,
- bool pure, int start, int end)
+ Axis a)
+{
+ return internal_get_minimum_translations (me, all_grobs, a, true, false, 0, 0);
+}
+
+vector<Real>
+Align_interface::get_pure_minimum_translations (Grob *me,
+ vector<Grob*> const &all_grobs,
+ Axis a, int start, int end)
+{
+ return internal_get_minimum_translations (me, all_grobs, a, true, true, start, end);
+}
+
+vector<Real>
+Align_interface::get_minimum_translations_without_min_dist (Grob *me,
+ vector<Grob*> const &all_grobs,
+ Axis a)
+{
+ return internal_get_minimum_translations (me, all_grobs, a, false, false, 0, 0);
+}
+
+// If include_fixed_spacing is true, the manually fixed spacings
+// induced by stretchable=0 or alignment-distances are included
+// in the minimum translations here. If you want to find the minimum
+// height of a system, include_fixed_spacing should be true. If you
+// want to actually lay out the page, then it should be false (or
+// else centered dynamics will break when there is a fixed alignment).
+vector<Real>
+Align_interface::internal_get_minimum_translations (Grob *me,
+ vector<Grob*> const &all_grobs,
+ Axis a,
+ bool include_fixed_spacing,
+ bool pure, int start, int end)
{
if (!pure && a == Y_AXIS && dynamic_cast<Spanner*> (me) && !me->get_system ())
me->programming_error ("vertical alignment called before line-breaking");
Skyline down_skyline (stacking_dir);
Real last_spaceable_element_pos = 0;
Grob *last_spaceable_element = 0;
+ int spaceable_count = 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]);
- SCM spec = Page_layout_problem::get_spacing_spec (elems[j-1], elems[j]);
+ SCM spec = Page_layout_problem::get_spacing_spec (elems[j-1], elems[j], pure, start, end);
Page_layout_problem::read_spacing_spec (spec, &padding, ly_symbol2scm ("padding"));
Real min_distance = 0;
if (Page_layout_problem::read_spacing_spec (spec, &min_distance, ly_symbol2scm ("minimum-distance")))
dy = max (dy, min_distance);
+ if (include_fixed_spacing)
+ dy = max (dy, Page_layout_problem::get_fixed_spacing (elems[j-1], elems[j], spaceable_count, pure, start, end));
+
if (Page_layout_problem::is_spaceable (elems[j]) && last_spaceable_element)
{
- // Spaceable staves may have min-distance and padding
+ // Spaceable staves may have
// 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]);
+ spec = Page_layout_problem::get_spacing_spec (last_spaceable_element, elems[j], pure, start, end);
Real spaceable_padding = 0;
Page_layout_problem::read_spacing_spec (spec,
&spaceable_padding,
&min_distance,
ly_symbol2scm ("minimum-distance")))
dy = max (dy, min_distance + stacking_dir*(last_spaceable_element_pos - where));
+
+ if (include_fixed_spacing)
+ dy = max (dy, Page_layout_problem::get_fixed_spacing (last_spaceable_element, elems[j], spaceable_count,
+ pure, start, end));
}
}
if (Page_layout_problem::is_spaceable (elems[j]))
{
+ spaceable_count++;
last_spaceable_element = elems[j];
last_spaceable_element_pos = where;
}
{
extract_grob_set (me, "elements", all_grobs);
- vector<Real> translates = get_minimum_translations (me, all_grobs, a, false, 0, 0);
+ vector<Real> translates = get_minimum_translations (me, all_grobs, a);
if (translates.size ())
for (vsize j = 0; j < all_grobs.size (); j++)
all_grobs[j]->translate_axis (translates[j], a);
Align_interface::get_pure_child_y_translation (Grob *me, Grob *ch, int start, int end)
{
extract_grob_set (me, "elements", all_grobs);
- SCM dy_scm = me->get_property ("forced-distance");
+ vector<Real> translates = get_pure_minimum_translations (me, all_grobs, Y_AXIS, start, end);
- if (scm_is_number (dy_scm))
+ if (translates.size ())
{
- Real dy = scm_to_double (dy_scm) * robust_scm2dir (me->get_property ("stacking-dir"), DOWN);
- Real pos = 0;
for (vsize i = 0; i < all_grobs.size (); i++)
- {
- if (all_grobs[i] == ch)
- return pos;
- if (!Hara_kiri_group_spanner::has_interface (all_grobs[i])
- || !Hara_kiri_group_spanner::request_suicide (all_grobs[i], start, end))
- pos += dy;
- }
+ if (all_grobs[i] == ch)
+ return translates[i];
}
else
- {
- vector<Real> translates = get_minimum_translations (me, all_grobs, Y_AXIS, true, start, end);
-
- if (translates.size ())
- {
- for (vsize i = 0; i < all_grobs.size (); i++)
- if (all_grobs[i] == ch)
- return translates[i];
- }
- else
- return 0;
- }
+ return 0;
programming_error ("tried to get a translation for something that is no child of mine");
return 0;
projects / lilypond.git / blobdiff