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Radio.H

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#ifndef _RADIOCONTROL_H
#define _RADIOCONTROL_H

#include <UserInterface.H>
#include <KeyBoard.H>
#include <Menu.H>

namespace xchen
{
  class UI :: Radio
  {
      typedef int RadioID;       
      
      enum { max_buttons_per_radio = 10000 };
      static vector<Radio*> radios; 

      static Radio* GetRadio(ButtonID id)                          { return radios[id / max_buttons_per_radio]; }
  public:
      static  void radio_keyboard_cb(ConvertedKeyValue btn_id, int, int);

  public:
      Radio(Menu* menu, const string radio_name);
      ~Radio();
      
      ButtonID AddButton(const string& btn, KeyValue k=0);
      void Set(ButtonID id)                                { pressed_btn = buttonID2name.find(id); assert(pressed_btn == buttonID2name.end()); }
      const string& Get() const                            { return pressed_btn->second; }

  private:
      RadioID id;
      
      map<ButtonID, string, less<int> > buttonID2name;
      map<ButtonID, string, less<int> >::iterator pressed_btn;

      Menu* menu;
  };


  

}//end namespace xchen


#endif

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