Doc: scm - Clarify ly:context-pushpop-property

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

diff --git a/lily/open-type-font.cc b/lily/open-type-font.cc
index 05bb5edb15542f1bc2d24ef324b63c59bc4902b6..3038df4331645f30dcb000be55cf3deb0830171d 100644 (file)
--- a/lily/open-type-font.cc
+++ b/lily/open-type-font.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
@@ -18,12 +18,13 @@
 */
 
 #include "open-type-font.hh"
+#include "freetype.hh"
 
 #include <cstdio>
 
 using namespace std;
 
-#include <freetype/tttables.h>
+#include FT_TRUETYPE_TABLES_H
 
 #include "dimensions.hh"
 #include "international.hh"
@@ -58,7 +59,7 @@ load_table (char const *tag_str, FT_Face face, FT_ULong *length)
 }
 
 string
-Open_type_font::get_otf_table (string tag) const
+Open_type_font::get_otf_table (const string &tag) const
 {
   return ::get_otf_table (face_, tag);
 }
@@ -75,7 +76,11 @@ load_scheme_table (char const *tag_str, FT_Face face)
       string contents ((char const *)buffer, length);
       contents = "(quote (" + contents + "))";
 
+#if GUILEV2
+      tab = scm_eval_string (scm_from_utf8_string (contents.c_str ()));
+#else
       tab = scm_c_eval_string (contents.c_str ());
+#endif
       free (buffer);
     }
   return tab;
@@ -90,7 +95,7 @@ Open_type_font::~Open_type_font ()
   UGH fix naming
 */
 string
-get_otf_table (FT_Face face, string tag)
+get_otf_table (FT_Face face, const string &tag)
 {
   FT_ULong len;
   FT_Byte *tab = load_table (tag.c_str (), face, &len);
@@ -101,7 +106,7 @@ get_otf_table (FT_Face face, string tag)
 }
 
 FT_Face
-open_ft_face (string str, FT_Long idx)
+open_ft_face (const string &str, FT_Long idx)
 {
   FT_Face face;
   FT_Error error_code = FT_New_Face (freetype2_library, str.c_str (), idx, &face);
@@ -116,7 +121,7 @@ open_ft_face (string str, FT_Long idx)
 }
 
 SCM
-Open_type_font::make_otf (string str)
+Open_type_font::make_otf (const string &str)
 {
   FT_Face face = open_ft_face (str, 0 /* index */);
   Open_type_font *otf = new Open_type_font (face);
@@ -150,13 +155,13 @@ Open_type_font::derived_mark () const
 }
 
 Offset
-Open_type_font::attachment_point (string glyph_name) const
+Open_type_font::attachment_point (const string &glyph_name) const
 {
   SCM sym = ly_symbol2scm (glyph_name.c_str ());
   SCM entry = scm_hashq_ref (lily_character_table_, sym, SCM_BOOL_F);
 
   Offset o;
-  if (entry == SCM_BOOL_F)
+  if (scm_is_false (entry))
     return o;
 
   SCM char_alist = entry;
@@ -172,7 +177,7 @@ Open_type_font::get_indexed_char_dimensions (size_t signed_idx) const
     {
       SCM box = scm_hashq_ref (lily_index_to_bbox_table_,
                                scm_from_unsigned_integer (signed_idx), SCM_BOOL_F);
-      Box *box_ptr = Box::unsmob (box);
+      Box *box_ptr = unsmob<Box> (box);
       if (box_ptr)
         return *box_ptr;
     }
@@ -190,7 +195,7 @@ Open_type_font::get_indexed_char_dimensions (size_t signed_idx) const
       SCM sym = ly_symbol2scm (name);
       SCM alist = scm_hashq_ref (lily_character_table_, sym, SCM_BOOL_F);
 
-      if (alist != SCM_BOOL_F)
+      if (scm_is_true (alist))
         {
           SCM bbox = scm_cdr (scm_assq (ly_symbol2scm ("bbox"), alist));
 
@@ -213,19 +218,18 @@ Open_type_font::get_indexed_char_dimensions (size_t signed_idx) const
         }
     }
 
-  FT_UInt idx = FT_UInt (signed_idx);
-  FT_Load_Glyph (face_, idx, FT_LOAD_NO_SCALE);
-
-  FT_Glyph_Metrics m = face_->glyph->metrics;
-  FT_Pos hb = m.horiBearingX;
-  FT_Pos vb = m.horiBearingY;
-  Box b (Interval (Real (-hb), Real (m.width - hb)),
-         Interval (Real (-vb), Real (m.height - vb)));
+  Box b = get_unscaled_indexed_char_dimensions (signed_idx);
 
   b.scale (design_size () / Real (face_->units_per_EM));
   return b;
 }
 
+Real
+Open_type_font::get_units_per_EM () const
+{
+  return face_->units_per_EM;
+}
+
 size_t
 Open_type_font::name_to_index (string nm) const
 {
@@ -236,6 +240,24 @@ Open_type_font::name_to_index (string nm) const
   return (size_t) - 1;
 }
 
+Box
+Open_type_font::get_unscaled_indexed_char_dimensions (size_t signed_idx) const
+{
+  return ly_FT_get_unscaled_indexed_char_dimensions (face_, signed_idx);
+}
+
+Box
+Open_type_font::get_glyph_outline_bbox (size_t signed_idx) const
+{
+  return ly_FT_get_glyph_outline_bbox (face_, signed_idx);
+}
+
+SCM
+Open_type_font::get_glyph_outline (size_t signed_idx) const
+{
+  return ly_FT_get_glyph_outline (face_, signed_idx);
+}
+
 size_t
 Open_type_font::index_to_charcode (size_t i) const
 {
@@ -318,7 +340,7 @@ Open_type_font::glyph_list () const
         warning (_f ("FT_Get_Glyph_Name () error: %s",
                      freetype_error_string (code).c_str ()));
 
-      *tail = scm_cons (scm_from_locale_string (name), SCM_EOL);
+      *tail = scm_cons (scm_from_ascii_string (name), SCM_EOL);
       tail = SCM_CDRLOC (*tail);
     }