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typedef sigc::signal<void, const Gtk::TreeModel::Path&> type_signal_clicked;
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type_signal_clicked signal_clicked();
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static gboolean activate_impl(GtkCellRenderer* cell, GdkEvent* event, GtkWidget* widget, const gchar* path, GdkRectangle* background_area, GdkRectangle* cell_area, GtkCellRendererState flags);
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virtual bool activate_vfunc(GdkEvent* event, Gtk::Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, Gtk::CellRendererState flags);