#ifndef __SCSELECT_H
#define __SCSELECT_H

#ifndef __MASK_H
#include <mask.h>
#endif

#ifndef __RELATION_H
#include <relation.h>
#endif

#ifndef __SHEET_H
#include <sheet.h>
#endif

#ifndef __SCSELMSK_H
#include "scselmsk.h"                    
#endif

class TCursor_sheet_recno : public TCursor_sheet
{
  TBit_array _recnos;

protected:
    virtual bool on_key(KEY k);
public:    
  TCursor_sheet_recno(TCursor * cursor, const char* fields,
            const char * title, const char * head, byte buttons = 0); 
  virtual ~TCursor_sheet_recno() {}
  bool rec_checked(TRecnotype n)  { return _recnos[n]; }
  void rec_check(TRecnotype n, bool on = TRUE) ;
  void rec_uncheck(TRecnotype n) { rec_check(n,FALSE); }      
};

class TSelection_mask : public TMask
{            
  TRelation*     _clifo_rel;
  TCursor*       _cli_cur_k1;
  TCursor*       _cli_cur_k2;
  TCursor*       _for_cur_k1;
  TCursor*       _for_cur_k2;

  TCursor_sheet_recno* _cli_sh_k1;
  TCursor_sheet_recno* _cli_sh_k2;
  TCursor_sheet_recno* _for_sh_k1;
  TCursor_sheet_recno* _for_sh_k2;        
  
  char           _who;      
  int            _key;
  
protected:  // TMask
  virtual void set_handler(short fld_id, CONTROL_HANDLER handler);
  
protected:
  void select_clifo_range(long from, long to);
  void set_clifo_limits();

  void set_who(char w) { _who = w; }
  void set_key (int  k) { _key  = k; }

  virtual void reset_sheets();

  // handlers
  static bool bfrom_handler(TMask_field& f, KEY k);
  static bool bto_handler(TMask_field& f, KEY k);
  static bool ffrom_handler(TMask_field& f, KEY k);
  static bool fto_handler(TMask_field& f, KEY k);
  static bool breset_handler(TMask_field& f, KEY k);
  static bool bselect_handler(TMask_field& f, KEY k);
  static bool rclifo_handler(TMask_field& f, KEY k);
  static bool rsortcf_handler(TMask_field& f, KEY k);

public:
  virtual TCursor_sheet_recno& cur_sheet();     
  
  char get_who() const { return _who; }
  int get_key() const { return _key; }
  
  TSelection_mask(const char* name); 
  virtual ~TSelection_mask();
};

#endif