uifw/AvKon/inc/AknSmileyModel.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 12 Mar 2010 15:43:43 +0200
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Revision: 201007 Kit: 201008
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/*
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* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  AVKON smiley data model.
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*
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*/
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#ifndef AKNSMILEYMODEL_H
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#define AKNSMILEYMODEL_H
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// INCLUDES
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#include <AknIconObserver.h>
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#include <AknsItemID.h>
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#include "AknSmileyUtils.h"
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#include "AknSmileyImage.h"
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// CLASS DECLARATION
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////////////////////////////////////////////////////////////////////
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const TInt KSmileyNameLength = 8;
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typedef TBuf<KSmileyNameLength> TSmileyText;
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typedef RArray<TSmileyText> RSmileyTextArray;
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NONSHARABLE_CLASS(TSmileyIconInfo)
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    {
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public:
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    TSmileyIconInfo();
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    TSmileyIconInfo(const TSmileyIconInfo& aInfo);
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    void Reset();
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    TInt iIndex;
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    TAknsItemID iSkinItemID;        // from skin
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    TInt iDefaultStillImageID;      // from mif
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    TInt iDefaultAnimationImageID;  // from mif
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    };
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////////////////////////////////////////////////////////////////////
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class CSmileyIcon : public CAknSmileyIcon, public MSmileyImageObserver
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    {
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public:
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    static CSmileyIcon* NewL(const TSmileyIconInfo& aInfo, MAknSmileyObserver* aObserver);
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    virtual ~CSmileyIcon();
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private:
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    CSmileyIcon(MAknSmileyObserver* aObserver);
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    void ConstructL(const TSmileyIconInfo& aInfo);
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public: // from AknSmileyIcon
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    virtual const CFbsBitmap* Image() const;
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    virtual const CFbsBitmap* Mask() const;
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    virtual TBool ReadyToDraw() const;
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    virtual void SetSize(const TSize& aSize);
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    virtual const TSize& Size() const;
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    virtual void PlayAnimationL(TInt aRepeat=0, TInt aDelay=0);
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    virtual void StopAnimation();
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private: // from MSmileyImageObserver
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    virtual void BitmapChanged(CSmileyImage* aSmileyImage, CFbsBitmap* aBitmap);
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public:
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    TInt Index() const;
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    void LoadStillImageL(TInt aDelay=0);
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    TBool StillImageIsReadyToDraw() const;
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    TBool AnimationImageIsReadyToDraw() const;
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    void AddText(const TDesC& aText);
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    const TDesC& Text(TInt aVariate=0) const;
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    TInt TextVariate() const;
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private:
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    MAknSmileyObserver*     iSmileyIconObserver;
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    TInt                    iIndex;
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    CSmileyImage*           iStillImage;
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    CSmileyImage*           iAnimationImage;
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    RSmileyTextArray        iTextArray;
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    };
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typedef RArray<CSmileyIcon*> RSmileyIconPtrArray;
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////////////////////////////////////////////////////////////////////
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class CSmileyTnumbnailAsynLoader : public CBase
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    {
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public:
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    CSmileyTnumbnailAsynLoader();
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    ~CSmileyTnumbnailAsynLoader();
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    void AddTaskL(CSmileyIcon* aSmileyIcon);
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    void DiscardAll();
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    TInt TaskCount() const;
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    void DoNextTaskL();
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private:
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    RSmileyIconPtrArray     iLoadingTaskArray;
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    };
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////////////////////////////////////////////////////////////////////
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class CSmileyTextTreeNode;
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class CSmileyModel : public CBase, public MAknSmileyObserver
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    {
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public:
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    CSmileyModel(MAknSmileyObserver* aObserver);
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    virtual ~CSmileyModel();
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public:
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    void LoadResourceL();
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    void ReleaseResource();
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public:
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    TInt ConvertCodesToTextL(TDes& aText);
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    TInt ConvertTextToCodesL(TDes& aText);
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    const TDesC& Text(TChar aCode) const;
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    TBool IsSmiley(TChar aCode) const;
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public:
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    void SetSize(const TSize& aSize);
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    void SetSizeByFont(const CFont* aFont);
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public:
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    void DrawText(CWindowGc& aGc, const TDesC& aText, const CFont* aFont, const TPoint& aPosition) const;
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    void DrawText(CWindowGc& aGc, const TDesC& aText, const TAknLayoutText& aLayout, TBool aUseLogicalToVisualConversion=EFalse) const;
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    void DrawText(CWindowGc& aGc, const TDesC& aText, const CFont* aFont, const TRect& aBox, TInt aBaselineOffset, 
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                  CGraphicsContext::TTextAlign aAlignment=CGraphicsContext::ELeft, TInt aLeftMargin=0) const;
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private:
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    void DrawText(CWindowGc& aGc, const TDesC& aText, const CFont* aFont, const TRect& aBox, const TPoint& aOffset) const;
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public:
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    TInt Count() const;
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    CAknSmileyIcon* Smiley(TChar aCode) const;
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    CAknSmileyIcon* operator[](TInt aIndex) const;
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private: // from MSmileyIconObserver
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    virtual void SmileyStillImageLoaded(CAknSmileyIcon* aSmileyIcon);
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    virtual void SmileyAnimationChanged(CAknSmileyIcon* aSmileyIcon);
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public: // for smiley picker
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    CAknSmileyIcon* SwitchToSmileyIcon() const;
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    CAknSmileyIcon* SwitchToSctIcon() const;
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    TChar SwitchToSmileyCode() const;
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    TChar SwitchToSctCode() const;
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    TChar SmileyCode(TInt aIndex, TInt aVariate=0) const;
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    TChar SmileyCode(CAknSmileyIcon* aSmileyIcon) const;
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    void LoadStillImagesL(const TDesC& aText);
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    void LoadStillImageL(TChar aChar);
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private:
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    const TDesC& Text(TInt aIndex, TInt aVariate=0) const;
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    TInt ArrayCount() const;
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    TChar EncodeSmileyCode(TInt aIndex, TInt aVariate) const;
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    TBool DecodeSmileyCode(TChar aCode, TInt& aIndex, TInt& aVariate) const;
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private:
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    MAknSmileyObserver*         iSmileyIconObserver;
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    CSmileyTnumbnailAsynLoader  iSmileyLoader;
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    RSmileyIconPtrArray         iSmileyIconArray;
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    TUint                       iBaseCode;
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    CSmileyTextTreeNode*        iTextSearchTree;
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    TBuf<1024*2>                iConvertBuffer;
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    };
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#endif // AKNSMILEYMODEL_H