#include <gtkmm.h>

class HeaderBarWindow: public Gtk::Window
{
 private:
  Gtk::TextView *tv;

 public:
  HeaderBarWindow()
  {
   set_title("Header Bar Demo");
   set_border_width(10);
   set_default_size(400,200);

   auto hb = Gtk::manage(new Gtk::HeaderBar());
   hb->set_show_close_button(true);
   hb->set_title("Header Bar Example");
   set_titlebar(*hb);

   auto but1 = Gtk::manage(new Gtk::Button());
   but1->set_image_from_icon_name("mail-send-receive-symbolic");
   hb->pack_end(*but1);

   auto box = Gtk::manage(new Gtk::HBox());
   auto btnL = Gtk::manage(new Gtk::Button());
   btnL->add(*Gtk::manage(new Gtk::Arrow(Gtk::ArrowType::ARROW_LEFT,
                                         Gtk::ShadowType::SHADOW_NONE)));
   auto btnR = Gtk::manage(new Gtk::Button());
   btnR->add(*Gtk::manage(new Gtk::Arrow(Gtk::ArrowType::ARROW_RIGHT,
                                         Gtk::ShadowType::SHADOW_NONE)));

   box->add(*btnL);
   box->add(*btnR);
   hb->pack_start(*box);

   tv = Gtk::manage(new Gtk::TextView());
   add(*tv);
   show_all();

   btnL->signal_clicked().connect(sigc::mem_fun(*this, &HeaderBarWindow::btn_lft_clicked));
  }
  void btn_lft_clicked()
  {
   tv->get_buffer()->insert_at_cursor("pressed left\n");
  }
};


int main(int argc, char **argv)
{
  Glib::RefPtr<Gtk::Application> app =
    Gtk::Application::create(argc, argv, "org.gtkmm.examples.headerbar");

  HeaderBarWindow window;
  return app->run(window);
}