TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group& parent, TimeAxisView& tv, double spu, Gdk::Color& base_color, 
				   nframes_t start, nframes_t duration,
				   Visibility vis)
	: trackview (tv)
{
	if (!have_name_font) {

		/* first constructed item sets up font info */

		NAME_FONT = get_font_for_style (N_("TimeAxisViewItemName")); // 1st entry point
		
		Gtk::Window win;
		Gtk::Label foo;
		win.add (foo);

		Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout (X_("Hg")); /* ascender + descender */
		int width;
		int height;

		layout->set_font_description (NAME_FONT);
		Gtkmm2ext::get_ink_pixel_size (layout, width, height);

		NAME_Y_OFFSET = height + 6;
		NAME_HIGHLIGHT_SIZE = height + 6;
		NAME_HIGHLIGHT_THRESH = NAME_HIGHLIGHT_SIZE * 2;

		have_name_font = true;
	}

	group = new ArdourCanvas::Group (parent);
	
	init (it_name, spu, base_color, start, duration, vis); // 2nd entry point

}