+/*
+ all-font-metrics.cc -- implement All_font_metrics
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
+#include "all-font-metrics.hh"
+
+#include "open-type-font.hh"
#include "main.hh"
-#include "all-fonts.hh"
-#include "debug.hh"
#include "warn.hh"
-#include "afm.hh"
#include "tfm.hh"
+#include "scm-hash.hh"
+#include "pango-font.hh"
-const char * default_font_sz_ = "cmr10";
+static char const *default_font_str0_ = "cmr10";
All_font_metrics::All_font_metrics (String path)
{
+ tfm_dict_ = new Scheme_hash_table;
+ otf_dict_ = new Scheme_hash_table;
+
+#if HAVE_PANGO_FT2
+ PangoFontMap *pfm = pango_ft2_font_map_new ();
+
+ pango_ft2_fontmap_
+ = G_TYPE_CHECK_INSTANCE_CAST (pfm,
+ PANGO_TYPE_FT2_FONT_MAP,
+ PangoFT2FontMap);
+ pango_dpi_ = 1200;
+ pango_ft2_font_map_set_resolution (pango_ft2_fontmap_,
+ pango_dpi_, pango_dpi_);
+
+ pango_dict_ = new Scheme_hash_table;
+#endif
+
search_path_.parse_path (path);
}
-Adobe_font_metric *
-All_font_metrics::find_afm (String name)
+All_font_metrics::~All_font_metrics ()
+{
+ tfm_dict_->unprotect ();
+ otf_dict_->unprotect ();
+
+#if HAVE_PANGO_FT2
+ pango_dict_->unprotect ();
+ g_object_unref (pango_ft2_fontmap_);
+#endif
+}
+
+All_font_metrics::All_font_metrics (All_font_metrics const &)
{
- if (!afm_p_dict_.elem_b (name))
+}
+
+#if HAVE_PANGO_FT2
+
+Pango_font *
+All_font_metrics::find_pango_font (PangoFontDescription *description,
+ Real magnification,
+ Real output_scale
+ )
+{
+ pango_font_description_set_size (description,
+ gint (magnification *
+ pango_font_description_get_size (description)));
+
+ gchar *pango_fn = pango_font_description_to_filename (description);
+ SCM key = ly_symbol2scm (pango_fn);
+
+ SCM val;
+ if (!pango_dict_->try_retrieve (key, &val))
{
- String path = name + ".afm";
- path = search_path_.find (path);
- if (path.empty_b ())
- return 0;
+ if (be_verbose_global)
+ progress_indication ("[" + String (pango_fn));
+
+ Pango_font *pf = new Pango_font (pango_ft2_fontmap_,
+ description,
+ output_scale
+ );
- *mlog << "[" << path;
- Adobe_font_metric
- * afm_p = new Adobe_font_metric (read_afm_file (path));
- *mlog << "]" << flush ;
+ val = pf->self_scm ();
+ pango_dict_->set (key, val);
+ pf->unprotect ();
+
+ if (be_verbose_global)
+ progress_indication ("]");
+
+ pf->description_ = scm_cons (SCM_BOOL_F,
+ scm_from_double (1.0));
+ }
+ g_free (pango_fn);
+ return dynamic_cast<Pango_font *> (unsmob_metrics (val));
+}
+
+#endif
+
+String
+kpathsea_find_file (String name, String ext)
+{
+ name += "." + ext;
+ String path = global_path.find (name);
+ if (path.length () > 0)
+ return path;
+
+ static SCM proc;
+ if (!proc)
+ {
+ SCM module = scm_c_resolve_module ("scm kpathsea");
+ proc = scm_c_module_lookup (module, "ly:kpathsea-find-file");
+ proc = scm_variable_ref (proc);
+ }
+
+ if (ly_is_procedure (proc))
+ {
+ SCM kp_result = scm_call_1 (proc, scm_makfrom0str (name.to_str0 ()));
+ if (scm_is_string (kp_result))
+ return ly_scm2string (kp_result);
+ }
+
+ return "";
+}
+
+Open_type_font *
+All_font_metrics::find_otf (String name)
+{
+ SCM sname = ly_symbol2scm (name.to_str0 ());
+ SCM name_string = scm_makfrom0str (name.to_str0 ());
+ SCM val;
+ if (!otf_dict_->try_retrieve (sname, &val))
+ {
+ String file_name;
+
+ if (file_name.is_empty ())
+ file_name = search_path_.find (name + ".otf");
+ if (file_name.is_empty ())
+ return 0;
+
+ if (be_verbose_global)
+ progress_indication ("[" + file_name);
- afm_p_dict_[name] = afm_p;
+ val = Open_type_font::make_otf (file_name);
+
+ if (be_verbose_global)
+ progress_indication ("]");
+
+ unsmob_metrics (val)->file_name_ = file_name;
+ unsmob_metrics (val)->description_ = scm_cons (name_string,
+ scm_from_double (1.0));
+ otf_dict_->set (sname, val);
+ unsmob_metrics (val)->unprotect ();
}
- return afm_p_dict_[name];
+
+ return dynamic_cast<Open_type_font *> (unsmob_metrics (val));
}
Tex_font_metric *
All_font_metrics::find_tfm (String name)
{
- if (!tfm_p_dict_.elem_b (name))
+ SCM sname = ly_symbol2scm (name.to_str0 ());
+ SCM name_string = scm_makfrom0str (name.to_str0 ());
+ SCM val;
+ if (!tfm_dict_->try_retrieve (sname, &val))
{
- String path = name + ".tfm";
- path = search_path_.find (path);
- if (path.empty_b ())
+ String file_name;
+
+ if (file_name.is_empty ())
+ {
+ /* FIXME: should add "cork-" prefix to lm* fonts. How to do
+ that, cleanly? */
+ String p = kpathsea_find_file (name, "tfm");
+ if (p.length ())
+ file_name = p;
+ }
+
+ if (file_name.is_empty ())
+ file_name = search_path_.find (name + ".tfm");
+ if (file_name.is_empty ())
return 0;
-
- *mlog << "[" << path;
- Tex_font_metric * tfm_p = new Tex_font_metric;
- tfm_p->read_file (path);
- *mlog << "]" << flush ;
- tfm_p_dict_[name] = tfm_p;
+ if (be_verbose_global)
+ progress_indication ("[" + file_name);
+
+ val = Tex_font_metric::make_tfm (file_name);
+
+ if (be_verbose_global)
+ progress_indication ("]");
+
+ unsmob_metrics (val)->file_name_ = file_name;
+ unsmob_metrics (val)->description_ = scm_cons (name_string,
+ scm_from_double (1.0));
+ tfm_dict_->set (sname, val);
+ unsmob_metrics (val)->unprotect ();
}
- return tfm_p_dict_[name];
-}
+ return dynamic_cast<Tex_font_metric *> (unsmob_metrics (val));
+}
Font_metric *
All_font_metrics::find_font (String name)
{
- Font_metric * f=0;
- f = find_tfm (name);
- if (f)
- return f;
-
- f= find_afm (name);
- if (f)
- return f;
-
- warning (_f("Can't find font `%s', loading default font.", name.ch_C()));
-
- f = find_tfm (default_font_sz_);
- if (f)
- return f;
- String s = _f("Can't find default font `%s\', giving up.", default_font_sz_);
- s += String ("\n") + _f ("(search path: `%s)'", search_path_.str ());
- error (s);
+ Font_metric *f = find_otf (name);
+
+ if (!f)
+ {
+ f = find_tfm (name);
+ }
+
+ if (!f)
+ {
+ warning (_f ("can't find font: `%s'", name.to_str0 ()));
+ warning (_ ("loading default font"));
+ }
+
+ String def_name = default_font_str0_;
+
+ if (!f)
+ f = find_tfm (def_name);
+
+ if (!f)
+ {
+ error (_f ("can't find default font: `%s'", def_name.to_str0 ()));
+ error (_f ("(search path: `%s')", search_path_.to_string ()));
+ error (_ ("giving up"));
+ }
+
+ return f;
+}
+
+All_font_metrics *all_fonts_global;
+
+LY_DEFINE (ly_font_load, "ly:font-load", 1, 0, 0,
+ (SCM name),
+ "Load the font @var{name}. ")
+{
+ SCM_ASSERT_TYPE (scm_is_string (name), name, SCM_ARG1, __FUNCTION__, "string");
+
+ Font_metric *fm = all_fonts_global->find_font (ly_scm2string (name));
+
+ return fm->self_scm ();
}
+
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