-/*
- font-size-engraver.cc -- implement
-
+/*
+ font-size-engraver.cc -- implement Font_size_engraver
+
source file of the GNU LilyPond music typesetter
-
- (c) 2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+
+ (c) 2001--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
#include "grob.hh"
#include "engraver.hh"
class Font_size_engraver : public Engraver
{
-public:
- VIRTUAL_COPY_CONS(Translator);
- Font_size_engraver ();
+
+ TRANSLATOR_DECLARATIONS (Font_size_engraver);
protected:
- virtual void acknowledge_grob (Grob_info gi);
+ DECLARE_ACKNOWLEDGER (font);
+ void process_music ();
+ Real size;
private:
};
-
Font_size_engraver::Font_size_engraver ()
{
+ size = 0.0;
+}
+void
+Font_size_engraver::process_music ()
+{
+ size = robust_scm2double (get_property ("fontSize"), 0.0);
}
void
-Font_size_engraver::acknowledge_grob (Grob_info gi)
+Font_size_engraver::acknowledge_font (Grob_info gi)
{
- SCM sz = get_property ("fontSize");
-
- if (gh_number_p (sz)
- && gh_scm2int (sz)
- && !gh_number_p (gi.elem_l_->get_grob_property ("font-relative-size")))
- {
- gi.elem_l_->set_grob_property ("font-relative-size", sz);
- }
+ /*
+ We only want to process a grob once.
+ */
+ if (!size)
+ return;
+
+ if (gi.context () != context ())
+ return;
+
+ Real font_size = size
+ + robust_scm2double (gi.grob ()->get_property ("font-size"), 0);
+ gi.grob ()->set_property ("font-size", scm_from_double (font_size));
}
-ADD_THIS_TRANSLATOR(Font_size_engraver);
+#include "translator.icc"
+
+ADD_ACKNOWLEDGER (Font_size_engraver, font);
+ADD_TRANSLATOR (Font_size_engraver,
+ /* doc */ "Puts fontSize into font-size grob property.",
+ /* create */ "",
+ /* read */ "fontSize",
+ /* write */ "");