1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:   

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef HUIFXPARAMETERMANAGER_H_

    21 #define HUIFXPARAMETERMANAGER_H_

    22 

    23 #include "HuiFxParameter.h"

    24 #include "HuiFxParameterCollection.h"

    25 #include <e32std.h>

    26 #include <e32hashtab.h>

    27 

    28 class CHuiFxEngine;

    29 class TRgb;

    30 

    31 /**

    32  *  A hash map containing named layer and filter parameters

    33  */

    34 typedef RPtrHashMap<TDesC, MHuiFxParameter> RHuiFxParameterMap;

    35 

    36 class CHuiFxParameterManager: public CBase, public MHuiFxParameterCollection

    37     {

    38 public:

    39     static CHuiFxParameterManager* NewL();

    40     ~CHuiFxParameterManager();

    41 

    42     MHuiFxParameter* Parameter(const TDesC& aName);

    43 

    44     // does not take ownership

    45     void RegisterParameterL(const TDesC& aName, TRgb* aColor);

    46     void RegisterParameterL(const TDesC& aName, TReal32* aScalar);

    47     

    48     TBool HasAnimatedParameters() const;

    49     void AdvanceTime(TReal32 aElapsedTime);

    50     TBool Update(CHuiFxEngine& aEngine, const TRect& aVisualRect);

    51 public: // effect cache

    52     CHuiFxParameterManager* CloneL() const;

    53     void CopyParameterL(const TDesC &aName, TReal32 *aValue, const CHuiFxParameterManager *aOldValues);

    54     void CopyParameterL(const TDesC &aName, TRgb *aValue, const CHuiFxParameterManager *aOldValues);

    55 private:

    56     CHuiFxParameterManager();

    57     void ConstructL();

    58     void ResolveReference( TReal32& aDefaultValue, THuiFxReferencePoint aRef, CHuiFxEngine& aEngine, const TRect& aVisualRec );

    59 

    60     RHuiFxParameterMap      iParameters;

    61     };

    62 

    63 #endif /* HUIFXPARAMETERMANAGER_H_ */