(LY_DEFINE): new file.

[lilypond.git] / lily / pango-select-scheme.cc

diff --git a/lily/pango-select-scheme.cc b/lily/pango-select-scheme.cc
new file mode 100644 (file)
index 0000000..7c755e0
--- /dev/null
+++ b/lily/pango-select-scheme.cc
@@ -0,0 +1,20 @@
+#include "config.hh"
+
+#if HAVE_PANGO_FT2
+#include "pango-font.hh"
+
+LY_DEFINE(ly_make_pango_description_string, "ly:make-pango-description-string",
+         2,0,0, (SCM chain, SCM size),
+         "Make a PangoFontDescription string for the property alist @var{chain} at size @var{size}.")
+{
+  SCM_ASSERT_TYPE(scm_is_number (size), size, SCM_ARG1, __FUNCTION__, "number");
+  PangoFontDescription *pfd = properties_to_pango_description (chain, scm_to_double (size));
+  char *str = pango_font_description_to_string (pfd);
+
+  SCM scm_str = scm_makfrom0str (str);
+  g_free (str);
+  pango_font_description_free (pfd);
+  return scm_str;
+}
+         
+#endif