/www/proggenOrg/dedupe/export/trunk/userinterface/gui/ncurses/markable.h

// NCures "Hello World!" program, taken from
// http://tldp.org/HOWTO/NCURSES-Programming-HOWTO/helloworld.html
#include "interface.h"

#ifndef ORG_PROGGEN_DEDUPE_GUI_NCURSES_MARKABLE
#define ORG_PROGGEN_DEDUPE_GUI_NCURSES_MARKABLE

#include <list>
#include <curses.h>

namespace Dedupe
{
  namespace GUI
  {
    class Markable
    {
      public:
        class List
        {
          std::list< Markable * > Elements;

            Markable * Current;
          public:
            Markable * SetCurrent( Markable & newCurrent );
            void ClearCurrent();
            inline Markable * GetCurrent() { return Current; }

            List() : Current( NULL ) {}

            inline void Add( Markable & markable ) { Elements.push_back( &markable ); }
            void Remove( Markable & markable );

            Markable * GetNext( Markable & markable );
            Markable * GetPrev( Markable & markable );

            inline unsigned int Size() { return Elements.size(); }
            inline Markable * GetFirst() { return ( Elements.size() > 0 ) ? *Elements.begin() : NULL; }
        };

      protected:
        Markable::List   & Owner;

        Markable( Markable::List & list, bool marked = false );
        ~Markable();
        virtual void RefreshMark() = 0;

      public:

        inline bool SetMark( bool mark )
        {
          if( mark && this != Owner.GetCurrent() )
            Owner.SetCurrent( *this );
          else
            if( !mark && this == Owner.GetCurrent() )
              Owner.ClearCurrent();
        }

        inline bool Marked()
        {
          return this == Owner.GetCurrent();
        }
    };

    class NCursesDialog
    {
      protected:
        WINDOW *              Window;

      public:
        Markable::List        Controls;

        inline WINDOW * GetWindow() { return Window; }

        void MarkNextControl();
        void MarkPrevControl();
    };
  }
}

#endif