* scm/define-markup-commands.scm (text): add \text markup command.

[lilypond.git] / lily / font-size-engraver.cc

diff --git a/lily/font-size-engraver.cc b/lily/font-size-engraver.cc
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..d1ac0e634b5cbce42ec98a4dcb02707b3836ac0e 100644 (file)
--- a/lily/font-size-engraver.cc
+++ b/lily/font-size-engraver.cc
@@ -0,0 +1,51 @@
+/*
+  font-size-engraver.cc -- implement Font_size_engraver
+
+  source file of the GNU LilyPond music typesetter
+
+  (c) 2001--2005  Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
+
+#include "grob.hh"
+#include "engraver.hh"
+
+class Font_size_engraver : public Engraver
+{
+
+  TRANSLATOR_DECLARATIONS (Font_size_engraver);
+protected:
+  virtual void acknowledge_grob (Grob_info gi);
+private:
+};
+
+Font_size_engraver::Font_size_engraver ()
+{
+}
+
+void
+Font_size_engraver::acknowledge_grob (Grob_info gi)
+{
+  SCM sz = get_property ("fontSize");
+
+  /*
+    We only want to process a grob once.
+  */
+  if (gi.context () != context ())
+    return;
+
+  if (scm_is_number (sz) && scm_to_double (sz))
+    {
+      Real font_size = scm_to_double (sz);
+
+      font_size += robust_scm2double (gi.grob ()->get_property ("font-size"), 0);
+      gi.grob ()->set_property ("font-size", scm_make_real (font_size));
+    }
+}
+
+ADD_TRANSLATOR (Font_size_engraver,
+               /* descr */ "Puts fontSize into font-relative-size grob property.",
+               /* creats*/ "",
+               /* accepts */ "",
+               /* acks  */ "font-interface",
+               /* reads */ "fontSize",
+               /* write */ "");