Issue 4895 Give SystemStartSquare a default of 5.0 for collapse-height

[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 2afceda1196e062072004f3bd460eee18d6fb31a..365ccb1a630f83756980b2d9fc9f2a40eba96008 100644 (file)
--- a/lily/open-type-font-scheme.cc
+++ b/lily/open-type-font-scheme.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2004--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 2004--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,8 +17,19 @@
   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+#include "international.hh"
 #include "modified-font-metric.hh"
 #include "open-type-font.hh"
+#include "freetype.hh"
+
+#ifdef FT_FONT_FORMATS_H
+/* FreeType 2.6+ */
+#include FT_FONT_FORMATS_H
+#else
+/* FreeType 2.5.5 and earlier */
+#include FT_XFREE86_H
+#define FT_Get_Font_Format FT_Get_X11_Font_Format
+#endif
 
 LY_DEFINE (ly_font_sub_fonts, "ly:font-sub-fonts", 1, 0, 0,
            (SCM font),
@@ -27,7 +38,7 @@ LY_DEFINE (ly_font_sub_fonts, "ly:font-sub-fonts", 1, 0, 0,
 {
   LY_ASSERT_SMOB (Font_metric, font, 1);
 
-  Font_metric *fm = unsmob_metrics (font);
+  Font_metric *fm = unsmob<Font_metric> (font);
   return fm->sub_fonts ();
 }
 
@@ -37,10 +48,10 @@ LY_DEFINE (ly_otf_font_glyph_info, "ly:otf-font-glyph-info", 2, 0, 0,
            " information about named glyph @var{glyph} (a string).")
 {
   Modified_font_metric *fm
-    = dynamic_cast<Modified_font_metric *> (unsmob_metrics (font));
+    = unsmob<Modified_font_metric> (font);
   Open_type_font *otf = fm
                         ? dynamic_cast<Open_type_font *> (fm->original_font ())
-                        : dynamic_cast<Open_type_font *> (unsmob_metrics (font));
+                        : unsmob<Open_type_font> (font);
 
   SCM_ASSERT_TYPE (otf, font, SCM_ARG1, __FUNCTION__, "OpenType font");
   LY_ASSERT_TYPE (scm_is_string, glyph, 2);
@@ -55,10 +66,10 @@ LY_DEFINE (ly_otf_font_table_data, "ly:otf-font-table-data", 2, 0, 0,
            " for non-existent @var{tag}.")
 {
   Modified_font_metric *fm
-    = dynamic_cast<Modified_font_metric *> (unsmob_metrics (font));
+    = unsmob<Modified_font_metric> (font);
   Open_type_font *otf = fm
                         ? dynamic_cast<Open_type_font *> (fm->original_font ())
-                        : dynamic_cast<Open_type_font *> (unsmob_metrics (font));
+                        : unsmob<Open_type_font> (font);
 
   SCM_ASSERT_TYPE (otf, font, SCM_ARG1, __FUNCTION__, "OpenType font");
   LY_ASSERT_TYPE (scm_is_string, tag, 2);
@@ -70,7 +81,7 @@ LY_DEFINE (ly_otf_font_table_data, "ly:otf-font-table-data", 2, 0, 0,
 
   string tab = otf->get_otf_table (string (ctag));
 
-  return scm_from_locale_stringn ((char const *) tab.data (), tab.length ());
+  return scm_from_latin1_stringn ((char const *) tab.data (), tab.length ());
 }
 
 LY_DEFINE (ly_otf_font_p, "ly:otf-font?", 1, 0, 0,
@@ -78,10 +89,10 @@ LY_DEFINE (ly_otf_font_p, "ly:otf-font?", 1, 0, 0,
            "Is @var{font} an OpenType font?")
 {
   Modified_font_metric *fm
-    = dynamic_cast<Modified_font_metric *> (unsmob_metrics (font));
+    = unsmob<Modified_font_metric> (font);
   Open_type_font *otf = fm
                         ? dynamic_cast<Open_type_font *> (fm->original_font ())
-                        : dynamic_cast<Open_type_font *> (unsmob_metrics (font));
+                        : unsmob<Open_type_font> (font);
 
   return scm_from_bool (otf);
 }
@@ -91,10 +102,10 @@ LY_DEFINE (ly_otf_glyph_count, "ly:otf-glyph-count", 1, 0, 0,
            "Return the number of glyphs in @var{font}.")
 {
   Modified_font_metric *fm
-    = dynamic_cast<Modified_font_metric *> (unsmob_metrics (font));
+    = unsmob<Modified_font_metric> (font);
   Open_type_font *otf = fm
                         ? dynamic_cast<Open_type_font *> (fm->original_font ())
-                        : dynamic_cast<Open_type_font *> (unsmob_metrics (font));
+                        : unsmob<Open_type_font> (font);
 
   SCM_ASSERT_TYPE (otf, font, SCM_ARG1, __FUNCTION__, "OpenType font");
 
@@ -106,12 +117,58 @@ LY_DEFINE (ly_otf_glyph_list, "ly:otf-glyph-list", 1, 0, 0,
            "Return a list of glyph names for @var{font}.")
 {
   Modified_font_metric *fm
-    = dynamic_cast<Modified_font_metric *> (unsmob_metrics (font));
+    = unsmob<Modified_font_metric> (font);
   Open_type_font *otf = fm
                         ? dynamic_cast<Open_type_font *> (fm->original_font ())
-                        : dynamic_cast<Open_type_font *> (unsmob_metrics (font));
+                        : unsmob<Open_type_font> (font);
 
   SCM_ASSERT_TYPE (otf, font, SCM_ARG1, __FUNCTION__, "OpenType font");
 
   return otf->glyph_list ();
 }
+
+LY_DEFINE (ly_get_font_format, "ly:get-font-format",
+           1, 1, 0, (SCM font_file_name, SCM idx),
+           "Get the font format for @var{font_file_name},"
+           " returning it as a symbol.  The optional"
+           " @var{idx} argument is useful for TrueType Collections (TTC) and"
+           " OpenType/CFF collections (OTC) only;"
+           " it specifies the font index within the TTC/OTC."
+           " The default value of @var{idx} is@tie{}0.")
+{
+  LY_ASSERT_TYPE (scm_is_string, font_file_name, 1);
+
+  int i = 0;
+  if (!SCM_UNBNDP (idx))
+    {
+      LY_ASSERT_TYPE (scm_is_integer, idx, 2);
+      i = scm_to_int (idx);
+      if (i < 0)
+        {
+          warning (_ ("font index must be non-negative, using index 0"));
+          i = 0;
+        }
+    }
+
+  string file_name = ly_scm2string (font_file_name);
+
+  FT_Face face;
+  /* check whether font index is valid */
+  if (i > 0)
+    {
+      face = open_ft_face (file_name, -1);
+      if (i >= face->num_faces)
+        {
+          warning (_f ("font index %d too large for font `%s', using index 0",
+                       i, file_name.c_str ()));
+          i = 0;
+        }
+      FT_Done_Face (face);
+    }
+
+  face = open_ft_face (file_name, i);
+  SCM asscm = scm_from_ascii_symbol (FT_Get_Font_Format (face));
+  FT_Done_Face (face);
+
+  return asscm;
+}