/*
- font-select.cc -- implement property -> font_metric routines.
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2003--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2003--2005 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.
-#include <math.h>
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
#include "dimensions.hh"
#include "all-font-metrics.hh"
#include "warn.hh"
#include "pango-font.hh"
#include "main.hh"
-
+#include "lily-imports.hh"
Font_metric *
get_font_by_design_size (Output_def *layout, Real requested,
- SCM font_vector)
+ SCM font_vector)
{
int n = scm_c_vector_length (font_vector);
Real size = 1e6;
int i = 0;
SCM pango_description_string = SCM_EOL;
+ SCM last_pango_description_string = SCM_EOL;
for (; i < n; i++)
{
SCM entry = scm_c_vector_ref (font_vector, i);
-
- if (scm_promise_p (entry) == SCM_BOOL_T)
- {
- Font_metric *fm = unsmob_metrics (scm_force (entry));
- size = fm->design_size ();
- }
+
+ if (to_boolean (scm_promise_p (entry)))
+ {
+ Font_metric *fm = unsmob<Font_metric> (scm_force (entry));
+ size = fm->design_size ();
+ }
#if HAVE_PANGO_FT2
else if (scm_is_pair (entry)
- && scm_is_number (scm_car (entry))
- && scm_is_string (scm_cdr (entry)))
- {
- size = scm_to_double (scm_car (entry));
- pango_description_string
- = scm_cdr (entry);
- }
+ && scm_is_number (scm_car (entry))
+ && scm_is_string (scm_cdr (entry)))
+ {
+ size = scm_to_double (scm_car (entry));
+ pango_description_string
+ = scm_cdr (entry);
+ }
#endif
-
+
if (size > requested)
- break;
+ break;
last_size = size;
+ last_pango_description_string = pango_description_string;
}
if (i == n)
else if (i > 0)
{
if ((requested / last_size) < (size / requested))
- {
- i--;
- size = last_size;
- }
+ {
+ i--;
+ size = last_size;
+ pango_description_string = last_pango_description_string;
+ }
}
-
+
Font_metric *fm = 0;
if (scm_is_string (pango_description_string))
{
#if HAVE_PANGO_FT2
return find_pango_font (layout,
- pango_description_string,
- requested / size);
+ pango_description_string,
+ requested / size);
#else
- error ("Trying to retrieve pango font without HAVE_PANGO_FT2.");
+ error ("Trying to retrieve pango font without HAVE_PANGO_FT2.");
#endif
}
else
- {
- fm = unsmob_metrics (scm_force (scm_c_vector_ref (font_vector, i)));
- }
+ fm = unsmob<Font_metric> (scm_force (scm_c_vector_ref (font_vector, i)));
return find_scaled_font (layout, fm, requested / size);
}
Font_metric *
get_font_by_mag_step (Output_def *layout, Real requested_step,
- SCM font_vector, Real default_size)
+ SCM font_vector, Real default_size)
{
return get_font_by_design_size (layout, default_size
- * pow (2.0, requested_step / 6.0),
- font_vector);
+ * pow (2.0, requested_step / 6.0),
+ font_vector);
}
SCM
properties_to_font_size_family (SCM fonts, SCM alist_chain)
{
- return scm_call_2 (ly_lily_module_constant ("lookup-font"), fonts, alist_chain);
+ return Lily::lookup_font (fonts, alist_chain);
}
Font_metric *
select_encoded_font (Output_def *layout, SCM chain)
{
- SCM name = ly_chain_assoc (ly_symbol2scm ("font-name"), chain);
+ SCM name = ly_chain_assoc_get (ly_symbol2scm ("font-name"), chain, SCM_BOOL_F);
- if (!scm_is_pair (name) || !scm_is_string (scm_cdr (name)))
+ if (!scm_is_string (name))
{
SCM fonts = layout->lookup_variable (ly_symbol2scm ("fonts"));
name = properties_to_font_size_family (fonts, chain);
}
- else
- name = scm_cdr (name);
#if HAVE_PANGO_FT2
- if (scm_is_string (name)
- && is_pango_format_global)
- {
- return select_pango_font (layout, chain);
- }
+ if (scm_is_string (name))
+ return select_pango_font (layout, chain);
else
#endif
- if (scm_is_string (name))
- {
- SCM mag = ly_chain_assoc (ly_symbol2scm ("font-magnification"), chain);
- Real rmag = (scm_is_pair (mag)
- ? robust_scm2double (scm_cdr (mag), 1.0)
- : 1);
- Font_metric *fm = all_fonts_global->find_font (ly_scm2string (name));
-
- return find_scaled_font (layout, fm, rmag);
- }
- else if (scm_instance_p (name))
+ if (scm_is_true (scm_instance_p (name)))
{
- SCM base_size = scm_slot_ref (name, ly_symbol2scm ("default-size"));
- SCM vec = scm_slot_ref (name, ly_symbol2scm ("size-vector"));
+ SCM base_size = scm_slot_ref (name, ly_symbol2scm ("default-size"));
+ SCM vec = scm_slot_ref (name, ly_symbol2scm ("size-vector"));
- SCM font_size = ly_chain_assoc (ly_symbol2scm ("font-size"), chain);
- Real req = 0;
- if (scm_is_pair (font_size))
- req = scm_to_double (scm_cdr (font_size));
+ Real req = robust_scm2double (ly_chain_assoc_get (ly_symbol2scm ("font-size"), chain, SCM_BOOL_F),
+ 0.0);
- return get_font_by_mag_step (layout, req, vec,
- scm_to_double (base_size));
+ return get_font_by_mag_step (layout, req, vec,
+ scm_to_double (base_size));
}
assert (0);
projects / lilypond.git / blobdiff