X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fall-font-metrics.cc;h=1273a3ae596feeb81160138edaff0a7d2d76ac8d;hb=26380ed75fbd7b32781715c043dfa5dd96dfbe4a;hp=9b174b29d1bdc21a12c842e84eb68fe5842eefd4;hpb=fc5394c7751ea902382ecc9022854583aff0d95e;p=lilypond.git diff --git a/lily/all-font-metrics.cc b/lily/all-font-metrics.cc index 9b174b29d1..1273a3ae59 100644 --- a/lily/all-font-metrics.cc +++ b/lily/all-font-metrics.cc @@ -1,78 +1,334 @@ +/* + 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) { + afm_dict_ = new Scheme_hash_table; + 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); } +All_font_metrics::~All_font_metrics () +{ + scm_gc_unprotect_object (afm_dict_->self_scm ()); + scm_gc_unprotect_object (tfm_dict_->self_scm ()); + scm_gc_unprotect_object (otf_dict_->self_scm ()); + +#if HAVE_PANGO_FT2 + scm_gc_unprotect_object (pango_dict_->self_scm ()); + g_object_unref (pango_ft2_fontmap_); +#endif +} + +All_font_metrics::All_font_metrics (All_font_metrics const &) +{ +} + +#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)) + { + if (be_verbose_global) + progress_indication ("[" + String (pango_fn)); + + Pango_font *pf = new Pango_font (pango_ft2_fontmap_, + RIGHT, + description, + output_scale); + val = pf->self_scm (); + pango_dict_->set (key, val); + scm_gc_unprotect_object (val); + + if (be_verbose_global) + progress_indication ("]"); + + pf->description_ = scm_cons (SCM_BOOL_F, + scm_make_real (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; + + SCM kpath = ly_lily_module_constant ("ly:kpathsea-find-file"); + if (ly_c_procedure_p (kpath)) + { + SCM kp_result = scm_call_1 (kpath, scm_makfrom0str (name.to_str0 ())); + if (scm_is_string (kp_result)) + return ly_scm2string (kp_result); + } + + return ""; +} + +/* + TODO: our AFM handling is broken: the units in an AFM file are + relative to the design size (1000 units = 1 designsize). Hence we + should include design size when generating an AFM metric. + + ugr: copied from find_tfm. +*/ Adobe_font_metric * All_font_metrics::find_afm (String name) { - if (!afm_p_dict_.elem_b (name)) + SCM sname = ly_symbol2scm (name.to_str0 ()); + SCM name_string = scm_makfrom0str (name.to_str0 ()); + SCM val; + if (!afm_dict_->try_retrieve (sname, &val)) { - String path = name + ".afm"; - path = search_path_.find (path); - if (path.empty_b ()) + String file_name; + + if (file_name.is_empty ()) + file_name = search_path_.find (name + ".afm"); + + if (file_name.is_empty ()) + { + String p = kpathsea_find_file (name, "afm"); + if (p.length ()) + file_name = p; + } + + if (file_name.is_empty ()) return 0; - - *mlog << "[" << path; - Adobe_font_metric - * afm_p = new Adobe_font_metric (read_afm_file (path)); - *mlog << "]" << flush ; - afm_p_dict_[name] = afm_p; + if (be_verbose_global) + progress_indication ("[" + file_name); + val = read_afm_file (file_name); + unsmob_metrics (val)->file_name_ = file_name; + + unsmob_metrics (val)->description_ = scm_cons (name_string, + scm_make_real (1.0)); + + if (be_verbose_global) + progress_indication ("]"); + + afm_dict_->set (sname, val); + scm_gc_unprotect_object (val); + + Adobe_font_metric *afm + = dynamic_cast (unsmob_metrics (val)); + + /* Only check checksums if there is one. We take the risk that + some file has valid checksum 0 */ + if (afm->checksum_) + { + Tex_font_metric *tfm = find_tfm (name); + + /* FIXME: better warning message + (maybe check upon startup for feta16.afm, feta16.tfm?) */ + if (tfm && tfm->info ().checksum != afm->checksum_) + { + // FIXME: broken sentence + String s = _f ("checksum mismatch for font file: `%s'", + file_name.to_str0 ()); + s += " " + _f ("does not match: `%s'", + tfm->file_name_.to_str0 ()); + s += "\n"; + s += " TFM: " + to_string ((int) tfm->info ().checksum); + s += " AFM: " + to_string ((int) afm->checksum_); + s += "\n"; + s += _ ("Rebuild all .afm files, and remove all .pk and .tfm files."); + s += "\n"; + s += _ ("Rerun with -V to show font paths."); + s += "\n"; + s += _ ("A script for removing font-files is delivered with the source-code:"); + s += "\n"; + s += "buildscripts/clean-fonts.sh"; + error (s); + } + } } - return afm_p_dict_[name]; + + return dynamic_cast (unsmob_metrics (val)); +} + +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); + + 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_make_real (1.0)); + otf_dict_->set (sname, val); + scm_gc_unprotect_object (val); + } + + 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_make_real (1.0)); + tfm_dict_->set (sname, val); + scm_gc_unprotect_object (val); } - 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'", 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")); + Font_metric *f = find_otf (name); + + if (!f + && (name.left_string (4) == "feta" + || name.left_string (8) == "parmesan" + || name.left_string (2) == "lm")) + { + f = find_afm (name); + if (!f) + f = find_tfm (name); + } + else if (!f) + { + f = find_tfm (name); + if (!f) + f = find_afm (name); + } + + if (!f) + { + warning (_f ("can't find font: `%s'", name.to_str0 ())); + warning (_ ("loading default font")); + } + + String def_name = default_font_str0_; + + /* We're in emergency recovery mode here anyway, so don't try to do + anything smart that runs the risk of failing. */ + if (!f) + f = find_afm (def_name); + + 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 (); } +