// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

/**

 @file

 @internalComponent

*/

#ifndef CDISPLAY_H

#define CDISPLAY_H

static const TInt KDisplayWidth = 100;

static const TInt KLineLength = KDisplayWidth;

typedef TBuf<KLineLength> TLine;

class CScrollWindow: public CBase

{

public:

    static CScrollWindow* NewL(CConsoleBase& aConsole, TInt aStartRow, TInt aEndRow);

    ~CScrollWindow();

private:

    CScrollWindow(CConsoleBase& aConsole, TInt aStartRow, TInt aEndRow);

    void ConstructL();

public:

    void Reset();

    void Update();

    void AppendL(const TDesC& aLine);

    TLine* NewLineL();

    void PageInc();

    void PageDec();

    void PageZero() {iPage = 0;}

private:

    CConsoleBase& iConsole;

    TLine iTmpLine;

    RArray<TLine> iLineArray;

    TInt iPage;

    const TInt iStartRow;

    const TInt iEndRow;

    const TInt iPageLength;

};

class CDisplay: public MDriveDisplay, public CBase

    {

public:

	static CDisplay* NewLC(RFs& aFs, CConsoleBase& aConsole);

	~CDisplay();

private:

	CDisplay(RFs& aFs, CConsoleBase& aConsole);

	void ConstructL();

public:

    void Menu();

    void DriveListL() const;

    void DevicesNumber(TInt aDevicesNumber) const;

    void DriveMapL(const TDriveMap& aDriveMap) const ;

    void DeviceMapL(TInt aRow, TInt deviceIndex, const TDeviceMap& aDeviceMap) const;

    void DeviceMapClear(TInt deviceIndex) const;

    void UpTime(TUint aUpTime) const;

    void MemoryFree(TInt aBytes) const;

    void GetDriveInfoL(TChar aChar);

    void DriveInfo();

    void Read(TRequestStatus &aStatus) {iConsole.Read(aStatus);}

    void ReadCancel() {iConsole.ReadCancel();}

    TKeyCode KeyCode() const {return iConsole.KeyCode();}

    void PageInc() {iScrollWindow->PageInc();}

    void PageDec() {iScrollWindow->PageDec();}

    void PageZero() {iScrollWindow->PageZero();}

private:

    void FormatDriveInfoL(const TDriveInfo& aDriveInfo);

    void FormatVolumeInfoL(const TVolumeInfo& aVolumeInfo);

    void CursorHome() const;

    void SetFooterPos(TPoint iPos) const;

private:    

    static const TInt iFooterX = 0;

    static const TInt iFooterY = 4;

    RFs& iFs;

    CConsoleBase& iConsole;

    TSize iScreenSize;

    TPoint iCursorPos;

    TPoint iPointFooter;

    CScrollWindow* iScrollWindow;

    };

inline void CDisplay::CursorHome() const

    {

    iConsole.SetPos(iCursorPos.iX, iCursorPos.iY);

    }

inline void CDisplay::SetFooterPos(TPoint iPos) const

    {

    TPoint pos = iPos + iPointFooter;

    iConsole.SetPos(pos.iX, pos.iY);

    }

class CMessageKeyProcessor : public CActive

	{

public:

	static CMessageKeyProcessor* NewLC(CDisplay& aDisplay, RUsbOtgSession& aUsbOtgSession);

	~CMessageKeyProcessor();

private:

	CMessageKeyProcessor(CDisplay& aDisplay, RUsbOtgSession& aUsbOtgSession);

	void ConstructL();

public:

	// Issue request

	void RequestCharacter();

	// Cancel request.

	// Defined as pure virtual by CActive;

	// implementation provided by this class.

	void DoCancel();

	// Service completed request.

	// Defined as pure virtual by CActive;

	// implementation provided by this class,

	void RunL();

	// Called from RunL() to handle the completed request

	void ProcessKeyPressL(TKeyCode aKeyCode);

private:

    TBool HandleKeyL(TKeyCode aKeyCode);

private:

	CDisplay& iDisplay;

    RUsbOtgSession& iUsbOtgSession;

	};

#endif