//

//

//

#ifndef FUTABA_MDM166AA_H

#define FUTABA_MDM166AA_H

#include "FutabaVfd.h"

const int KMDM166AAWidthInPixels = 96;

const int KMDM166AAHeightInPixels = 16;

const int KMDM166AAPixelsPerByte = 8;

const int KMDM166AAFrameBufferSizeInBytes = KMDM166AAWidthInPixels*KMDM166AAHeightInPixels/KMDM166AAPixelsPerByte; //96*16/8=192

const int KMDM166AAFrameBufferPixelCount = KMDM166AAWidthInPixels*KMDM166AAHeightInPixels;

/**

MDM166AA is a graphic display module using a FUTABA 96x16dots VFD.

*/

class MDM166AA : public FutabaGraphicDisplay

	{

public:

    MDM166AA();

    ~MDM166AA();

	//From DisplayBase

	virtual int Open();

	virtual void SwapBuffers();

		//Brightness support

    virtual int MinBrightness() const {return 0;}

    virtual int MaxBrightness() const {return 2;}

	virtual void SetBrightness(int aBrightness);

		//Clock support

	virtual void ShowClock();

	virtual void HideClock();

	virtual bool SupportClock(){return true;}

	//From GraphicDisplay

    virtual int WidthInPixels() const {return KMDM166AAWidthInPixels;}

    virtual int HeightInPixels() const {return KMDM166AAHeightInPixels;}

	virtual void SetPixel(unsigned char aX, unsigned char aY, unsigned int aPixel);

	virtual void SetAllPixels(unsigned char aPattern);

    virtual int FrameBufferSizeInBytes() const {return KMDM166AAFrameBufferSizeInBytes;}	

	virtual void Clear();

	virtual void Fill();

	virtual void Request(TMiniDisplayRequest aRequest);

	//

	void ToggleOffScreenMode();

    void SetOffScreenMode(bool aOn);

    bool OffScreenMode() const {return iOffScreenMode;}

private:

	enum TClockFormat

		{

		EClock12	=	0x00,

		EClock24	=	0x01,

		};

	enum TClockSize

		{

		EClockSmall		=	0x01,

		EClockLarge		=	0x02

		};

private:

	//Specific to MDM166AA

	//General setting command

	void SendCommandClear();

	void SendCommandReset();

	//

	//Clock commands

	void SendCommandSetClockData(unsigned char aHour, unsigned char aMinute);

	void SendCommandClockDisplay(TClockSize aClockSize, TClockFormat aClockFormat);	

	void AttemptClockSynchronization();

	//Graphics commands

	void SendCommandSetAddressCounter(unsigned char aAddressCounter);

	void SendCommandWriteGraphicData(int aSize, unsigned char* aPixels);

    void RequestDeviceId();

    void RequestFirmwareRevision();

    void RequestPowerSupplyStatus();

	//

	void SetClockData();

	//

	void ResetBuffers();

private:

	///Off screen mode is the recommended default settings to avoid tearing.

	///Though turning it off can be useful for debugging

	bool iOffScreenMode;

	///We use this flag to align display clock seconds with system time

	bool iNeedAccurateClockData;

    //

	BitArrayLow* iFrameNext;

    BitArrayLow* iFrameCurrent;

    BitArrayLow* iFramePrevious;

    //

    BitArrayLow* iFrameAlpha; //owned

    BitArrayLow* iFrameBeta;  //owned

    BitArrayLow* iFrameGamma; //owned

	};

#endif