29     {

    29     {

    30 public:

    30 public:

    31     IMPORT_C ~CHuiFxFilterLayer();

    31     IMPORT_C ~CHuiFxFilterLayer();

    32     IMPORT_C static CHuiFxFilterLayer* NewL(CHuiFxFilter* aFilter); // takes ownership

    32     IMPORT_C static CHuiFxFilterLayer* NewL(CHuiFxFilter* aFilter); // takes ownership

    33     IMPORT_C TBool PrepareDrawL(CHuiFxEngine& aEngine);

    33     IMPORT_C TBool PrepareDrawL(CHuiFxEngine& aEngine);

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

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

    35     IMPORT_C CHuiFxFilter& Filter() const;

    36     IMPORT_C CHuiFxFilter& Filter() const;

    36     IMPORT_C TBool Changed() const;

    37     IMPORT_C TBool Changed() const;

    37     IMPORT_C void AdvanceTime(TReal32 aElapsedTime);

    38     IMPORT_C void AdvanceTime(TReal32 aElapsedTime);

    38     IMPORT_C TBool Margin(TMargins &m);

    39     IMPORT_C TBool Margin(TMargins &m);