#ifndef TSCANNER_EPSON_INCLUDED
#define TSCANNER_EPSON_INCLUDED

#include "tscanner.h"
#include "TScannerIO/TScannerIO.h"

/*
PLEASE DO NOT REMOVE unreferenced methods... they are useful for debugging  :)
max
*/

class TScannerEpson : public TScanner
{

	enum SettingsMode {
		OLD_STYLE,
		NEW_STYLE
	};

	TScannerIO *m_scannerIO;
	bool m_hasADF;
	bool m_isOpened;
	SettingsMode m_settingsMode;

public:
	TScannerEpson();
	~TScannerEpson();

	void selectDevice();
	bool isDeviceAvailable();
	bool isDeviceSelected();
	void updateParameters(TScannerParameters &param); // vedi TScanner
	void acquire(const TScannerParameters &params, int paperCount);
	bool isAreaSupported();
	void closeIO();

private:
	void doSettings(const TScannerParameters &params, bool isFirstSheet);
	void collectInformation(char *lev0, char *lev1, unsigned short *lowRes, unsigned short *hiRes, unsigned short *hMax, unsigned short *vMax);
	bool resetScanner();
	void reportError(std::string errMsg); // debug only

	char *ESCI_inquiry(char cmd); /* returns 0 if failed */
	bool ESCI_command(char cmd, bool checkACK);
	bool ESCI_command_1b(char cmd, unsigned char p0, bool checkACK);
	bool ESCI_command_2b(char cmd, unsigned char p0, unsigned char p1, bool checkACK);
	bool ESCI_command_2w(char cmd, unsigned short p0, unsigned short p1, bool checkACK);
	bool ESCI_command_4w(char cmd, unsigned short p0, unsigned short p1, unsigned short p2, unsigned short p3, bool checkACK);

	std::unique_ptr<unsigned char[]> ESCI_read_data2(unsigned long &size);
	void ESCI_readLineData(unsigned char &stx, unsigned char &status, unsigned short &counter, unsigned short &lines, bool &areaEnd);
	void ESCI_readLineData2(unsigned char &stx, unsigned char &status, unsigned short &counter);

	int receive(unsigned char *buffer, int size);
	int send(unsigned char *buffer, int size);

	bool ESCI_doADF(bool on);
	int sendACK();
	bool expectACK();
	void scanArea2pix(const TScannerParameters &params, unsigned short &offsetx, unsigned short &offsety,
					  unsigned short &dimlx, unsigned short &dimly, const TRectD &scanArea);
};

#endif