X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fall-font-metrics.cc;h=e1be0f1de16c238cdee1c65c25a7997317f03604;hb=8e1bf39ba8b390db542d203b6c301e09f834637d;hp=339e74c8d35193ac127eac5eacc99a5bd40b7e53;hpb=6e5d53a85f4ab98c5ebf94474338619f30ff4e96;p=lilypond.git diff --git a/lily/all-font-metrics.cc b/lily/all-font-metrics.cc index 339e74c8d3..e1be0f1de1 100644 --- a/lily/all-font-metrics.cc +++ b/lily/all-font-metrics.cc @@ -1,77 +1,243 @@ +/* + all-font-metrics.cc -- implement All_font_metrics + source file of the GNU LilyPond music typesetter + + (c) 1999--2005 Han-Wen Nienhuys +*/ + +#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 (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 (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 (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 (); } +