/*

* Copyright (c) 2007 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: This file defines class CNcsEditor.

*

*/

#ifndef CNCSEDITOR_H

#define CNCSEDITOR_H

#include <eikrted.h>

#include <AknUtils.h>

#include "ncscontrol.h"

#include "ncsutility.h"

#include "ncsconstants.h"

class CAknsBasicBackgroundControlContext;

class CNcsCustomDraw;

class CNcsEditorCustomDraw;

/**

*  CNcsEditor

*/

class CNcsEditor : public CEikRichTextEditor, public MNcsControl

    {

public: // construction and destruction

    CNcsEditor(

        MNcsFieldSizeObserver* aSizeObserver = NULL,

        TBool aHeaderField = ETrue,

        TNcsEditorUsage aEditorUsage = ENcsEditorDefault );

    void ConstructL( const CCoeControl* aParent,

                     TInt aNumberOfLines,

                     TInt aTextLimit );    

    virtual ~CNcsEditor();

public: // new functions

    void OpenVirtualKeyBoardL();

    void GetLineRectL( TRect& aLineRect ) const;

    virtual TInt ScrollableLines() const;

    virtual TInt CursorLineNumber() const;

    virtual TInt LineCount() const;

    virtual TInt CursorPosition() const;

    virtual const TDesC& GetLabelText() const;

    // <cmail> Platform layout change       

    TInt LayoutLineCount() const;

    // </cmail> Platform layout change    

    virtual void Reposition(TPoint& /*aPt*/, TInt /*aWidth*/) {}

    void SetMaximumLabelLength( TSize aSize );

    void SetupEditorL();

    void PositionChanged();

    TInt TextHeight() const;

    TInt GetLineHeightL() const;

    TInt GetNumChars() const;

    TInt DocumentLength() const;

    TInt PixelsAboveBand() const;

    TInt ChangeBandTopL(TInt aPixels);

	void UpdateFontSize();

	TBool HasSemicolonAtTheEndL() const;

	//<cmail>

	void SetRealRect( TRect aRect );

	void FormatAllTextNowL();

	//<cmail>

	void UpdateCustomDrawer();

#ifdef _DEBUG

    void DebugDump();

#endif

    void SetTextColorL( TLogicalRgb aColor );

    TInt TrimmedTextLength();

// <cmail> Platform layout changes   

    void SetNcsFontType( NcsUtility::TNcsLayoutFont aFontType );

// </cmail> Platform layout changes

public: // from CoeControl

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

    virtual void SetRect( const TRect& aRect );

    void ActivateL();

public: // from CEikEdwin

    virtual void SetTextL( const TDesC* aDes );

    virtual void HandleResourceChange( TInt aType );

protected: // from CEikEdwin    

    //<cmail> Platform layout change

    // virtual CLafEdwinCustomDrawBase* CreateCustomDrawL();

    // </cmail>

protected: // from MEditObserver

    virtual void EditObserver( TInt aStart, TInt aExtent );

private: // methods used internally

	// <cmail> Platform layout change 

    void UpdateFontL();

    // </cmail> Platform layout change 

    void UpdateColors();

    void UpdateGraphics();

    void DoUpdateGraphicsL();

    TAknTextComponentLayout GetLayout();

    //<cmail>

    void Draw( const TRect& aRect ) const;

    //</cmail>

private: // data

    TInt iPreviousFontHeight;

    TInt32 iPreviousLineSpacingInTwips;

    TRgb iTextColor;

    CCharFormatLayer* iGlobalCharFormat;

    // Flag indicating whether this control is header field.

    // Header fields have different backgrounds than message field.

    TBool iHeaderField;

    // background control context. Owned.

    CAknsBasicBackgroundControlContext* iBgContext;

    // Custom drawer. Not owned.

    CNcsCustomDraw* iCustomDrawer;

    // Platform layout change

    NcsUtility::TNcsLayoutFont iNcsFontType;

    // Custom drawer for row lines. Own  

    CNcsEditorCustomDraw* iEditorCustomDrawer;

    // what purpose editor is used to

    TNcsEditorUsage iEditorUsage;

    // Real screen rectangle

    TRect iRealRect;

    };

#endif