* The grand 2005-2006 replace.

[lilypond.git] / lily / open-type-font-scheme.cc

diff --git a/lily/open-type-font-scheme.cc b/lily/open-type-font-scheme.cc
index 27e574312ef85a407d33c96d574180cc11b4abf9..44d3353770bcfd2e65143fc6a6a599d14b4873fa 100644 (file)
--- a/lily/open-type-font-scheme.cc
+++ b/lily/open-type-font-scheme.cc
@@ -1,16 +1,16 @@
 /*
-  open-type-font.cc --  implement Open_type_font
+  open-type-font.cc -- implement Open_type_font
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2004--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 2004--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "modified-font-metric.hh"
 #include "open-type-font.hh"
 
 LY_DEFINE (ly_font_sub_fonts, "ly:font-sub-fonts", 1, 0, 0,
-         (SCM font),
+          (SCM font),
           "Given the font metric @var{font} of an OpenType font, return the "
           "names of the subfonts within @var{font}.")
 {
@@ -20,13 +20,13 @@ LY_DEFINE (ly_font_sub_fonts, "ly:font-sub-fonts", 1, 0, 0,
 }
 
 LY_DEFINE (ly_otf_font_glyph_info, "ly:otf-font-glyph-info", 2, 0, 0,
-         (SCM font, SCM glyph),
+          (SCM font, SCM glyph),
           "Given the font metric @var{font} of an OpenType font, return the "
           "information about named glyph @var{glyph} (a string)")
 {
-  Modified_font_metric * fm
-    = dynamic_cast<Modified_font_metric*> (unsmob_metrics (font));
-  Open_type_font * otf = dynamic_cast<Open_type_font*> (fm->original_font ());
+  Modified_font_metric *fm
+    = dynamic_cast<Modified_font_metric *> (unsmob_metrics (font));
+  Open_type_font *otf = dynamic_cast<Open_type_font *> (fm->original_font ());
   SCM_ASSERT_TYPE (otf, font, SCM_ARG1, __FUNCTION__, "OTF font-metric");
   SCM_ASSERT_TYPE (scm_is_string (glyph), glyph, SCM_ARG1,
                   __FUNCTION__, "string");
@@ -34,3 +34,40 @@ LY_DEFINE (ly_otf_font_glyph_info, "ly:otf-font-glyph-info", 2, 0, 0,
   SCM sym = scm_string_to_symbol (glyph);
   return scm_hashq_ref (otf->get_char_table (), sym, SCM_EOL);
 }
+
+LY_DEFINE (ly_otf_font_table_data, "ly:otf-font-table-data", 2, 0, 0,
+          (SCM font, SCM tag),
+          "Extract a table @var{tag} from @var{font}. Return empty string for "
+          "non-existent @var{tag}.")
+{
+  Modified_font_metric *fm
+    = dynamic_cast<Modified_font_metric *> (unsmob_metrics (font));
+
+  Open_type_font *otf = fm ? dynamic_cast<Open_type_font *> (fm->original_font ())
+    : dynamic_cast<Open_type_font *> (unsmob_metrics (font));
+
+  SCM_ASSERT_TYPE (otf, font, SCM_ARG1, __FUNCTION__, "Open type font");
+  SCM_ASSERT_TYPE (scm_is_string (tag), tag, SCM_ARG1, __FUNCTION__, "Open type font");
+
+  char ctag [5] = "    ";
+
+  String tag_string = ly_scm2string (tag);
+  strncpy (ctag, tag_string.to_str0 (), tag_string.length ());
+
+  String tab = otf->get_otf_table (String (ctag));
+
+  return scm_from_locale_stringn ((char const *) tab.to_bytes (), tab.length ());
+}
+
+LY_DEFINE (ly_otf_font_p, "ly:otf-font?", 1, 0, 0,
+          (SCM font),
+          "Is @var{font} an OpenType font?")
+{
+  Modified_font_metric *fm
+    = dynamic_cast<Modified_font_metric *> (unsmob_metrics (font));
+
+  Open_type_font *otf = fm ? dynamic_cast<Open_type_font *> (fm->original_font ())
+    : dynamic_cast<Open_type_font *> (unsmob_metrics (font));
+
+  return scm_from_bool (otf);
+}