#include <gdkmm.h>
#include <gtkmm/cellrenderertext.h>
#include <gtkmm/window.h>

class PopupEntry;


class CellRendererPopup : public Gtk::CellRendererText
{
public:
  CellRendererPopup();
  virtual ~CellRendererPopup();

  PopupEntry*  get_popup_entry();
  Gtk::Window* get_popup_window();

  void set_focus_widget(Gtk::Widget& focus_widget);
  Gtk::Widget* get_focus_widget();

  SigC::Signal5<void,const Glib::ustring&,int,int,int,int>& signal_show_popup();
  SigC::Signal0<void>&                                      signal_hide_popup();

  void hide_popup();

protected:
  virtual void get_size_vfunc(Gtk::Widget& widget,
                              const Gdk::Rectangle* cell_area,
                              int* x_offset, int* y_offset,
                              int* width,    int* height);

  virtual Gtk::CellEditable* start_editing_vfunc(GdkEvent* event,
                                                 Gtk::Widget& widget,
                                                 const Glib::ustring& path,
                                                 const Gdk::Rectangle& background_area,
                                                 const Gdk::Rectangle& cell_area,
                                                 Gtk::CellRendererState flags);

  virtual void on_show_popup(const Glib::ustring& path, int x1, int y1, int x2, int y2);
  virtual void on_hide_popup();

private:
  typedef CellRendererPopup Self;

  SigC::Signal5<void,const Glib::ustring&,int,int,int,int>  signal_show_popup_;
  SigC::Signal0<void>                                       signal_hide_popup_;

  int           button_width_;
  Gtk::Window   popup_window_;
  Gtk::Widget*  focus_widget_;
  PopupEntry*   popup_entry_;
  bool          shown_;
  bool          editing_canceled_;

  bool on_button_press_event(GdkEventButton* event);
  bool on_key_press_event(GdkEventKey* event);
  void on_style_changed(const Glib::RefPtr<Gtk::Style>& previous_style);

  void on_popup_editing_done();
  void on_popup_arrow_clicked();
  void on_popup_hide();
};