/*

* 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 "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:  

*

*/

#ifndef FILEBROWSER_FILEVIEWERDLG_H

#define FILEBROWSER_FILEVIEWERDLG_H

//  INCLUDES

#include <e32std.h>

#include <e32base.h>

#include <f32file.h>

#include <AknDialog.h>

#include <eiksbobs.h>

//  FORWARD DECLARATIONS

class CFileBrowserFileEditorViewControl;

class CEikEdwin;

class CParaFormat;

class CEikScrollBarFrame;

//  CLASS DEFINITIONS

class CFileBrowserFileEditorDlg : public CAknDialog

    {

public:

    static CFileBrowserFileEditorDlg* NewL(const TDesC& aFileName, TInt aMode);

    virtual ~CFileBrowserFileEditorDlg();

private: // Constructors

    CFileBrowserFileEditorDlg(const TDesC& aFileName, TInt aMode);

    void ConstructL();        

protected: // From CAknDialog

    void ProcessCommandL(TInt aCommandId);

    void PreLayoutDynInitL();

    void PostLayoutDynInitL();

protected: // From CEikDialog

    void SetSizeAndPosition(const TSize& aSize);

    SEikControlInfo CreateCustomControlL(TInt aControlType);

protected: // From MEikMenuObserver

    void DynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane);

public:  // New methods

    TBool RunDlgLD();

private:  // New methods

    void OpenFileLC(RFile& aFile, const TDesC& aFileName);

    void LoadFileL();    

    void GetTextFileMode(RFile& aFile, TInt& aFileSize);

    HBufC16* ConvertBuf8ToBuf16L(HBufC8* aBuf8);

    HBufC8* ConvertBuf16ToBuf8L(HBufC16* aBuf16);

    void SaveEditorDataL(TBool aQueryNewName=EFalse);

    TBool IsHexChar(TInt aCh);

private: // Data

    CFileBrowserFileEditorViewControl*  iViewer;

    CEikEdwin*                          iTextEditor;

    CParaFormat*                        iEditorPF;

    TFileName			                iFileName;

    TInt                                iActiveMode;

    TInt                                iTextFormat;

    };

class CFileBrowserFileEditorViewControl : public CCoeControl, MEikScrollBarObserver

    {

public:

    virtual ~CFileBrowserFileEditorViewControl();

public: // Constructors

    CFileBrowserFileEditorViewControl();

    void ConstructL();        

protected: // From CCoeControl

    void Draw(const TRect& aRect) const; 

    TKeyResponse OfferKeyEventL(const TKeyEvent &aKeyEvent, TEventCode aType);

    TSize MinimumSize();

    CCoeControl* ComponentControl(TInt aIndex) const;

    TInt CountComponentControls() const;    

    void HandleResourceChange(TInt aType);

    TTypeUid::Ptr MopSupplyObject(TTypeUid aId);

protected: // From MEikScrollBarObserver

    void HandleScrollEventL(CEikScrollBar* aScrollBar, TEikScrollEvent aEventType);

public: // New methods

    void FormatAsTextL(HBufC16* aBuf=NULL);

    void FormatAsHexL(HBufC8* aBuf=NULL);

private: // New methods

    void InitVariables();

    void ResetVariables(TBool aResetData=ETrue);

    void UpdateScrollBarL();

private: // Data

    TInt			        iActiveMode;

    TRect                   iViewerRect;

    TInt                    iDrawingWidth;

    TInt                    iLeftDrawingPosition;

    TReal                   iX_factor;

    TReal                   iY_factor;

    TInt                    iNumberOfLinesFitsScreen;

    CEikScrollBarFrame*     iScrollBarFrame;

    CFont*                  iFont;

    TInt                    iCurrentLine;

    TInt                    iTotalNumberOfLines;

    HBufC8*                 iHexesBuffer;

    TInt                    iHexGrougWidth;

    TInt                    iAmountOfHexesFitsHorizontally;

    HBufC16*                iTextBuf;

    CArrayFix<TPtrC>*       iWrappedTextArray;

    };

#endif

// End of File