30     {

    30     {

    31 public:

    31 public:

    32     IMPORT_C static CHuiFxVisualLayer* NewL(MHuiEffectable* aVisual); // param mandatory

    32     IMPORT_C static CHuiFxVisualLayer* NewL(MHuiEffectable* aVisual); // param mandatory

    33     IMPORT_C ~CHuiFxVisualLayer();

    33     IMPORT_C ~CHuiFxVisualLayer();

    34     IMPORT_C TBool PrepareDrawL(CHuiFxEngine& aEngine);

    34     IMPORT_C TBool PrepareDrawL(CHuiFxEngine& aEngine);

    35     IMPORT_C void Draw(CHuiFxEngine& aEngine, CHuiGc& aGc, CHuiFxRenderbuffer& aTarget, CHuiFxRenderbuffer& aSource, TBool aHasSurface);

    36     IMPORT_C void Draw(CHuiFxEngine& aEngine, CHuiGc& aGc, CHuiFxRenderbuffer& aTarget, CHuiFxRenderbuffer& aSource, TBool aHasSurface);

    36     IMPORT_C TBool VisualArea( TRect& aRect );

    37     IMPORT_C TBool VisualArea( TRect& aRect );

    37     IMPORT_C void AdvanceTime(TReal32 aElapsedTime);

    38     IMPORT_C void AdvanceTime(TReal32 aElapsedTime);

    38     IMPORT_C TBool Changed() const;

    39     IMPORT_C TBool Changed() const;

    39     IMPORT_C TBool Margin(TMargins &m);

    40     IMPORT_C TBool Margin(TMargins &m);