X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fall-font-metrics.cc;h=f7334849b84ab2eabe4b68d1ae395e7b810c3326;hb=55c7ef27b5382940b8afe785c94b744c24b98473;hp=89608e47680fd02d5c11f6cabbb509acb3119c4e;hpb=fd7e615444cf58b38283a59b56d3457c07778397;p=lilypond.git diff --git a/lily/all-font-metrics.cc b/lily/all-font-metrics.cc index 89608e4768..f7334849b8 100644 --- a/lily/all-font-metrics.cc +++ b/lily/all-font-metrics.cc @@ -1,156 +1,244 @@ -/* - all-font-metrics.cc -- implement All_font_metrics - +/* + all-font-metrics.cc -- implement All_font_metrics + source file of the GNU LilyPond music typesetter - - (c) 1999 Han-Wen Nienhuys - - */ -#include "main.hh" + (c) 1999--2006 Han-Wen Nienhuys +*/ + #include "all-font-metrics.hh" -#include "debug.hh" -#include "warn.hh" -#include "afm.hh" + +#include "international.hh" +#include "main.hh" +#include "open-type-font.hh" +#include "pango-font.hh" +#include "scm-hash.hh" #include "tfm.hh" -#include "lily-guile.hh" -#include "tfm-reader.hh" +#include "warn.hh" -const char * default_font_sz_ = "cmr10"; +static char const *default_font_str0_ = "cmr10"; -All_font_metrics::All_font_metrics (String path) +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 &) { - SCM sname = ly_symbol2scm (name.ch_C ()); - if (!afm_p_dict_.elem_b (sname)) +} + +#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; - - *mlog << "[" << path; - Adobe_font_metric * afm_p = read_afm_file (path); + if (be_verbose_global) + progress_indication ("[" + string (pango_fn)); - afm_p->name_str_ = name; + Pango_font *pf = new Pango_font (pango_ft2_fontmap_, + description, + output_scale + ); - *mlog << "]" << flush ; + val = pf->self_scm (); + pango_dict_->set (key, val); + pf->unprotect (); + + if (be_verbose_global) + progress_indication ("]"); - afm_p_dict_[sname] = afm_p->self_scm_; - scm_unprotect_object (afm_p->self_scm_); + pf->description_ = scm_cons (SCM_BOOL_F, + scm_from_double (1.0)); } - - return dynamic_cast (unsmob_metrics (afm_p_dict_[sname])); + g_free (pango_fn); + return dynamic_cast (unsmob_metrics (val)); } -Scaled_font_metric * -All_font_metrics::find_scaled (String nm, int m) +#endif + +string +kpathsea_find_file (string name, string ext) { - Scaled_font_metric * s=0; - String index = nm + "@" + to_str (m); - SCM sname = ly_symbol2scm (index.ch_C ()); + 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); + } - Font_metric *fm =0; - if (!scaled_p_dict_.elem_b (sname)) + if (ly_is_procedure (proc)) { - Font_metric *f = find_font (nm); - s = new Scaled_font_metric (f, m); - scaled_p_dict_[sname] = s->self_scm_; - fm = s; - scm_unprotect_object (s->self_scm_); + SCM kp_result = scm_call_1 (proc, scm_makfrom0str (name.c_str ())); + if (scm_is_string (kp_result)) + return ly_scm2string (kp_result); } - else - fm = unsmob_metrics (scaled_p_dict_[sname]); - return dynamic_cast (fm); + return ""; } -Tex_font_metric * -All_font_metrics::find_tfm (String name) +Open_type_font * +All_font_metrics::find_otf (string name) { - SCM sname = ly_symbol2scm (name.ch_C ()); - if (!tfm_p_dict_.elem_b (sname)) + SCM sname = ly_symbol2scm (name.c_str ()); + SCM name_string = scm_makfrom0str (name.c_str ()); + SCM val; + if (!otf_dict_->try_retrieve (sname, &val)) { - String path = name + ".tfm"; - path = search_path_.find (path); - if (path.empty_b ()) + string file_name; + + if (file_name.empty ()) + file_name = search_path_.find (name + ".otf"); + if (file_name.empty ()) return 0; - *mlog << "[" << path; - Tex_font_metric * tfm_p = Tex_font_metric_reader::read_file (path); - tfm_p->name_str_ = name; + if (be_verbose_global) + progress_indication ("[" + file_name); + + val = Open_type_font::make_otf (file_name); - *mlog << "]" << flush ; + if (be_verbose_global) + progress_indication ("]"); - tfm_p_dict_[sname] = tfm_p->self_scm_; - scm_unprotect_object (tfm_p->self_scm_); + 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 - dynamic_cast (unsmob_metrics (tfm_p_dict_[sname])); -} + return dynamic_cast (unsmob_metrics (val)); +} -Font_metric * -All_font_metrics::find_font (String name) +Tex_font_metric * +All_font_metrics::find_tfm (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'", name.ch_C ())); - warning (_ ("Loading default font")); - - f = find_tfm (default_font_sz_); - if (f) - return f; - error (_f ("Can't find default font: `%s'", default_font_sz_)); - error (_f ("(search path: `%s'", search_path_.str ())); - error (_ ("Giving up")); - - return 0; + SCM sname = ly_symbol2scm (name.c_str ()); + SCM name_string = scm_makfrom0str (name.c_str ()); + SCM val; + if (!tfm_dict_->try_retrieve (sname, &val)) + { + string file_name; + + if (file_name.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.empty ()) + file_name = search_path_.find (name + ".tfm"); + if (file_name.empty ()) + return 0; + + 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 dynamic_cast (unsmob_metrics (val)); } -SCM -All_font_metrics::font_descriptions () const +Font_metric * +All_font_metrics::find_font (string name) { - SCM l[] = {0,0,0}; + Font_metric *f = find_otf (name); - l[0] = afm_p_dict_.to_alist (); - l[1] = tfm_p_dict_.to_alist (); - l[2] = scaled_p_dict_.to_alist (); + if (!f) + { + f = find_tfm (name); + } - SCM list = SCM_EOL; - for (int i=0; i < 3; i++) + if (!f) { - for (SCM s = l[i]; gh_pair_p (s); s = gh_cdr (s)) - { - Font_metric * fm = unsmob_metrics (gh_cdar (s)); + warning (_f ("can't find font: `%s'", name.c_str ())); + warning (_ ("loading default font")); + } - list = gh_cons (fm->description (), list); - } + 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.c_str ())); + error (_f ("(search path: `%s')", search_path_.to_string ())); + error (_ ("giving up")); } - return list; + + return f; } -Font_metric * -unsmob_metrics( SCM s) +All_font_metrics *all_fonts_global; + +LY_DEFINE (ly_font_load, "ly:font-load", 1, 0, 0, + (SCM name), + "Load the font @var{name}. ") { - if (SMOB_IS_TYPE_B(Font_metric, s)) - return SMOB_TO_TYPE(Font_metric, s); - else - return 0; + 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 (); } -#include "ly-smobs.icc" -IMPLEMENT_SMOBS(Font_metric);