#ifndef __RELAPP_H
#define __RELAPP_H

#ifndef __APPLICAT_H
#include <applicat.h>
#endif

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


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

class TKey_array;

class TRelation_application : public TApplication
{
	WINDOW _statbar;
	TMask* _mask;
	TKey_array* _maskeys;
	long _first, _last;
	int	 _search_id;

	TString _autoins_caller;
	bool _lnflag;
	TToken_string _fixed;

	virtual bool create();
	virtual bool destroy();

	bool filter();
	TLocalisamfile& file() const { return *get_relation()->lfile(); }
	bool test_key(byte k, bool err);
	bool save(bool check_dirty);
	void enable_query();
	void set_toolbar(bool all);

	void set_fixed();   // Fissa i campi non modificabili
	int set_mode(int mode);	// Seleziona il nuovo modo e ritorna il vecchio
	void set_limits(byte what = 0x3);
	bool search_mode(); // Attiva la maschera di ricerca
	void query_mode(bool pre_ins = FALSE);	// Entra in modo ricerca
	void query_insert_mode() { query_mode(TRUE); }
	void insert_mode();	// Entra in modo inserimento
	bool modify_mode();	// Entra in modo modifica
	bool main_loop();	  // Ciclo principale
	TMask_field*	get_search_field() const;
	void	setkey();

protected:
	virtual bool menu(MENU_TAG m);

	virtual bool user_create() pure;
	virtual bool user_destroy() pure;
	virtual TMask* get_mask(int mode) pure;
	virtual bool changing_mask(int mode) pure;
	virtual TRelation* get_relation() const pure;
	virtual int read(TMask& m);
	virtual int write(const TMask& m);
	virtual int rewrite(const TMask& m);
	virtual bool remove();
	virtual const char* get_next_key() { return ""; }
	virtual bool protected_record(TRectype&) { return FALSE; }
	virtual void init_query_mode(TMask&) { }
	virtual void init_query_insert_mode(TMask& m) { init_query_mode(m); }
	virtual void init_insert_mode(TMask&) { }
	virtual void init_modify_mode(TMask&) { }
	virtual void write_enable(const bool on = TRUE) { get_relation()->write_enable(-1, on); }
	void write_disable() { write_enable(FALSE); }

	bool autonum(TMask* m, bool rec);
	void set_search_field(short id) { _search_id = id;}
	bool has_filtered_cursor() const { return filtered() || force_cursor_usage();}

public:
	TRelation_application();
	virtual ~TRelation_application();
	bool filtered() const { return _fixed.not_empty(); }
	void set_first(long first) { _first = first;}
	void set_last(long last) { _last = last;}
	bool find(byte key = 0);
	virtual bool force_cursor_usage() const { return FALSE;}
};

#endif