/*
- music-output-def.cc -- implement Output_def
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2008 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 "output-def.hh"
#include "context-def.hh"
#include "file-path.hh"
#include "global-context.hh"
+#include "international.hh"
#include "interval.hh"
#include "main.hh"
#include "output-def.hh"
parent_ = 0;
smobify_self ();
-
- scope_ = ly_make_anonymous_module (false);
+
+ scope_ = ly_make_module (false);
}
Output_def::Output_def (Output_def const &s)
smobify_self ();
input_origin_ = s.input_origin_;
- scope_ = ly_make_anonymous_module (false);
+ scope_ = ly_make_module (false);
if (ly_is_module (s.scope_))
ly_module_copy (scope_, s.scope_);
}
void
assign_context_def (Output_def * m, SCM transdef)
{
- Context_def *tp = unsmob_context_def (transdef);
+ Context_def *tp = Context_def::unsmob (transdef);
assert (tp);
if (tp)
{
SCM sym = tp->get_context_name ();
m->set_variable (sym, transdef);
- }
+ }
}
/* find the translator for NAME. NAME must be a symbol. */
SCM
find_context_def (Output_def const *m, SCM name)
{
- Context_def *cd = unsmob_context_def (m->lookup_variable (name));
+ Context_def *cd = Context_def::unsmob (m->lookup_variable (name));
return cd ? cd->self_scm () : SCM_EOL;
}
int
Output_def::print_smob (SCM s, SCM p, scm_print_state *)
{
- Output_def * def = unsmob_output_def (s);
+ Output_def * def = Output_def::unsmob (s);
scm_puts ("#< ", p);
scm_puts (def->class_name (), p);
scm_puts (">", p);
SCM var = ly_module_lookup (scope_, sym);
if (SCM_VARIABLEP (var) && SCM_VARIABLE_REF (var) != SCM_UNDEFINED)
return SCM_VARIABLE_REF (var);
-
+
if (parent_)
return parent_->lookup_variable (sym);
-
+
return SCM_UNDEFINED;
}
SCM
-Output_def::c_variable (string s) const
+Output_def::c_variable (const string &s) const
{
return lookup_variable (ly_symbol2scm (s.c_str ()));
}
scm_module_define (scope_, sym, val);
}
-
+void
+Output_def::normalize ()
+{
+ Real paper_width;
+ SCM scm_paper_width = c_variable ("paper-width");
+
+ bool twosided = to_boolean (c_variable ("two-sided"));
+ // We don't distinguish between outer-margin / left-margin and so on
+ // until page-stencil positioning in page.scm
+ Real left_margin, left_margin_default;
+ SCM scm_left_margin_default = (twosided
+ ? c_variable ("outer-margin-default-scaled")
+ : c_variable ("left-margin-default-scaled"));
+ SCM scm_left_margin = (twosided
+ ? c_variable ("outer-margin")
+ : c_variable ("left-margin"));
+
+ Real right_margin, right_margin_default;
+ SCM scm_right_margin_default = (twosided
+ ? c_variable ("inner-margin-default-scaled")
+ : c_variable ("right-margin-default-scaled"));
+ SCM scm_right_margin = (twosided
+ ? c_variable ("inner-margin")
+ : c_variable ("right-margin"));
+
+ if (scm_paper_width == SCM_UNDEFINED
+ || scm_left_margin_default == SCM_UNDEFINED
+ || scm_right_margin_default == SCM_UNDEFINED)
+ {
+ programming_error ("called normalize () on paper with missing settings");
+ return;
+ }
+ else
+ {
+ paper_width = scm_to_double (scm_paper_width);
+ left_margin_default = scm_to_double (scm_left_margin_default);
+ right_margin_default = scm_to_double (scm_right_margin_default);
+ }
+
+ Real line_width;
+ Real line_width_default
+ = paper_width - left_margin_default - right_margin_default;
+ SCM scm_line_width = c_variable ("line-width");
+
+ Real binding_offset = 0;
+ if (twosided)
+ binding_offset = robust_scm2double (c_variable ("binding-offset"), 0);
+
+ if (scm_line_width == SCM_UNDEFINED)
+ {
+ left_margin = ((scm_left_margin == SCM_UNDEFINED)
+ ? left_margin_default
+ : scm_to_double (scm_left_margin));
+ right_margin = ((scm_right_margin == SCM_UNDEFINED)
+ ? right_margin_default
+ : scm_to_double (scm_right_margin)) + binding_offset;
+ line_width = paper_width - left_margin - right_margin;
+ }
+ else
+ {
+ line_width = scm_to_double (scm_line_width);
+ if (scm_left_margin == SCM_UNDEFINED)
+ {
+ // Vertically center systems if only line-width is given
+ if (scm_right_margin == SCM_UNDEFINED)
+ {
+ left_margin = (paper_width - line_width) / 2;
+ right_margin = left_margin;
+ }
+ else
+ {
+ right_margin = scm_to_double (scm_right_margin) + binding_offset;
+ left_margin = paper_width - line_width - right_margin;
+ }
+ }
+ else
+ {
+ left_margin = scm_to_double (scm_left_margin);
+ right_margin = ((scm_right_margin == SCM_UNDEFINED)
+ ? (paper_width - line_width - left_margin)
+ : scm_to_double (scm_right_margin)) + binding_offset;
+ }
+ }
+
+ if (to_boolean (c_variable ("check-consistency")))
+ {
+ // Consistency checks. If values don't match, set defaults.
+ if (abs (paper_width - line_width - left_margin - right_margin) > 1e-6)
+ {
+ line_width = line_width_default;
+ left_margin = left_margin_default;
+ right_margin = right_margin_default;
+ warning (_ ("margins do not fit with line-width, setting default values"));
+ }
+ else if ((left_margin < 0) || (right_margin < 0))
+ {
+ line_width = line_width_default;
+ left_margin = left_margin_default;
+ right_margin = right_margin_default;
+ warning (_ ("systems run off the page due to improper paper settings, setting default values"));
+ }
+ }
+
+ set_variable (ly_symbol2scm ("left-margin"), scm_from_double (left_margin));
+ set_variable (ly_symbol2scm ("right-margin"), scm_from_double (right_margin));
+ set_variable (ly_symbol2scm ("line-width"), scm_from_double (line_width));
+}
+
/* FIXME. This is broken until we have a generic way of
putting lists inside the \layout block. */
Interval
projects / lilypond.git / blobdiff