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/*
This file is part of LilyPond, the GNU music typesetter.
Copyright (C) 1999--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
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 "all-font-metrics.hh"
#include "string-convert.hh"
#include "international.hh"
#include "main.hh"
#include "open-type-font.hh"
#include "pango-font.hh"
#include "scm-hash.hh"
#include "warn.hh"
Index_to_charcode_map const *
All_font_metrics::get_index_to_charcode_map (const string &filename,
int face_index,
FT_Face face)
{
string key = filename + String_convert::int_string (face_index);
if (filename_charcode_maps_map_.find (key)
== filename_charcode_maps_map_.end ())
filename_charcode_maps_map_[key] = make_index_to_charcode_map (face);
return &filename_charcode_maps_map_[key];
}
All_font_metrics::All_font_metrics (const string &path)
{
#if HAVE_PANGO_FT2
pango_dict_ = 0;
#endif
otf_dict_ = 0;
smobify_self ();
otf_dict_ = unsmob<Scheme_hash_table> (Scheme_hash_table::make_smob ());
#if HAVE_PANGO_FT2
pango_dict_ = unsmob<Scheme_hash_table> (Scheme_hash_table::make_smob ());
PangoFontMap *pfm = pango_ft2_font_map_new ();
pango_ft2_fontmap_ = PANGO_FT2_FONT_MAP (pfm);
pango_dpi_ = PANGO_RESOLUTION;
pango_ft2_font_map_set_resolution (pango_ft2_fontmap_,
pango_dpi_, pango_dpi_);
#endif
search_path_.parse_path (path);
}
All_font_metrics::~All_font_metrics ()
{
#if HAVE_PANGO_FT2
g_object_unref (pango_ft2_fontmap_);
#endif
}
SCM
All_font_metrics::mark_smob () const
{
#if HAVE_PANGO_FT2
if (pango_dict_)
scm_gc_mark (pango_dict_->self_scm ());
#endif
if (otf_dict_)
return otf_dict_->self_scm ();
return SCM_UNDEFINED;
}
#if HAVE_PANGO_FT2
Pango_font *
All_font_metrics::find_pango_font (PangoFontDescription const *description,
Real output_scale
)
{
gchar *pango_fn = pango_font_description_to_filename (description);
SCM key = ly_symbol2scm (pango_fn);
SCM val;
if (!pango_dict_->try_retrieve (key, &val))
{
debug_output ("[" + string (pango_fn), true); // start on a new line
Pango_font *pf = new Pango_font (pango_ft2_fontmap_,
description,
output_scale
);
val = pf->self_scm ();
pango_dict_->set (key, val);
pf->unprotect ();
debug_output ("]", false);
pf->description_ = scm_cons (SCM_BOOL_F,
scm_from_double (1.0));
}
g_free (pango_fn);
return unsmob<Pango_font> (val);
}
#endif
Open_type_font *
All_font_metrics::find_otf (const string &name)
{
SCM sname = ly_symbol2scm (name.c_str ());
SCM val;
if (!otf_dict_->try_retrieve (sname, &val))
{
string file_name;
if (file_name.empty ())
file_name = search_path_.find (name + ".otf");
if (file_name.empty ())
return 0;
debug_output ("[" + file_name, true); // start on a new line
val = Open_type_font::make_otf (file_name);
debug_output ("]", false);
unsmob<Font_metric> (val)->file_name_ = file_name;
SCM name_string = ly_string2scm (name);
unsmob<Font_metric> (val)->description_ = scm_cons (name_string,
scm_from_double (1.0));
otf_dict_->set (sname, val);
unsmob<Font_metric> (val)->unprotect ();
}
return unsmob<Open_type_font> (val);
}
Font_metric *
All_font_metrics::find_font (const string &name)
{
Font_metric *f = find_otf (name);
if (!f)
{
error (_f ("cannot find font: `%s'", name.c_str ()));
}
return f;
}
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