/*

* Copyright (c) 2003 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:  NVG Decoder header file

 *

*/

#ifndef NVGCSICON_H_

#define NVGCSICON_H_

#include <e32base.h>

#include <openvg.h>

#include "NVGIcon.h"

class CNVGIconData;

class CNvgEngine;

class COpenVGHandleStore;

class CNVGCSIcon : public CBase, public MNVGIcon

    {

private:

    enum TNVGCSIconCommands

        {

        EPath,

        EPathData,

        EPaint,

        EColorRamp,

        ETransform,

        EStrokeWidth,

        EStrokeMiterLimit,

        EStrokeLineJoinCap,

        EStrokePaint,

        EStrokeColorRamp

        };

    CNVGCSIcon();

    void ConstructL(const TDesC8& aBuf);

public:

    static CNVGCSIcon * NewL(const TDesC8& aBuf);

    static CNVGCSIcon * NewLC(const TDesC8& aBuf);

    virtual ~CNVGCSIcon();

    virtual TInt Draw(const TSize aSize, CNvgEngine * aNVGEngine);

    TInt SetViewBox(TReal32 x, TReal32 y, TReal32 w, TReal32 h) __SOFTFP;

    TInt SetPreserveAspectRatio(TInt aPreserveAspectSetting, 

            TInt aSmilFitSetting);

    TInt Rotate(TReal32 aAngle, TReal32 aX, TReal32 aY) __SOFTFP;

    /**

     * Adds new path drawing command. 

     * @param aPath vgPath to be appended

     */

    void AddDrawPathCommandL(VGPath aPath, VGbitfield aPaintMode);

    /**

     * Adds path data. This is required if vgCreatePath fails. 

     */        

    void AddPathDataL(VGint numSegments, const VGubyte * pathSegments, const void * pathData);

    /**

     * Adds linear gradient drawing command. Stores the gradient data and matrix

     * to be used with VG_MATRIX_FILL_PAINT_TO_USER mode.

     * 

     * @param aCount            Gradient data parameter count

     * @param aGradientData     Linear gradient data to be given to vgSetParameterfv

     * @param aGradientMatrix   Linear gradient matrix used for FILL_PAINT_TO_USER matrix mode

     */

    void AddLinearGradientCommandL(VGint aCount, VGfloat* aGradientData, VGfloat* aGradientMatrix, VGPaint aPaint);

    /**

     * Adds radial gradient drawing command. Stores the gradient data and matrix

     * to be used with VG_MATRIX_FILL_PAINT_TO_USER mode.

     * 

     * @param aCount            Gradient data parameter count

     * @param aGradientData     Linear gradient data to be given to vgSetParameterfv

     * @param aGradientMatrix   Linear gradient matrix used for FILL_PAINT_TO_USER matrix mode

     */

    void AddRadialGradientCommandL(VGint aCount, VGfloat* aGradientData, VGfloat* aGradientMatrix, VGPaint aPaint);

    /**

     * Adds a setColor command to be used with paints.

     * 

     * @param aRgba RGBA color in hex format to be set with vgSetColor

     */

    void AddSetColorCommandL(VGuint aRgba);

    /**

     * Adds color ramp to the icon data structure.

     * 

     * @param aStopCount    Count of the color ramps, has to be multiple of 5

     * @param aColorRamps   Color ramp data

     */

    void AddColorRampCommandL(VGPaint aPaint);

    /**

     * Adds a transformation command which is multiplied to the current matrix

     * 

     * @param aTransformMatrix  Transformation matrix used for multiplication

     * @param aFlag 1 multiplies  aTransformMatrix with current matrix, 0 loads original matrix

     */

    void AddSetTransformCommandL(const VGfloat* aTransformMatrix, TInt aFlag);

    /**

     * Adds set stroke-width command

     * 

     * @param aStrokeWidth stroke width

     */

    void AddSetStrokeWidthCommandL(VGfloat aStrokeWidth);

    /**

     * Adds set stroke-miterlimit command

     * 

     * @param aMiterLimit miter length     

     */

    void AddSetStrokeMiterLimitCommandL(VGfloat aMiterLimit);

    /**

     * Adds set line join cap command

     * 

     * @param aCapStyle   end cap style

     * @param aJoinStyle  line join style

     */

    void AddStrokeLineJoinCapCommandL(VGint aCapStyle, VGint aJoinStyle);

    /**

     * Adds linear gradient drawing command. Stores the gradient data and matrix

     * 

     * @param aCount            Gradient data parameter count

     * @param aGradientData     Linear gradient data to be given to vgSetParameterfv

     * @param aGradientMatrix   Linear gradient matrix used for STROKE_PAINT_TO_USER matrix mode

     */

    void AddStrokeLinearGradientCommandL(VGint aCount, VGfloat* aGradientData, VGfloat* aGradientMatrix, VGPaint aPaint);

    /**

     * Adds radial gradient drawing command. Stores the gradient data and matrix

     * to be used with VG_MATRIX_STROKE_PAINT_TO_USER mode.

     * 

     * @param aCount            Gradient data parameter count

     * @param aGradientData     Linear gradient data to be given to vgSetParameterfv

     * @param aGradientMatrix   Linear gradient matrix used for VG_MATRIX_STROKE_PAINT_TO_USER matrix mode

     */

    void AddStrokeRadialGradientCommandL(VGint aCount, VGfloat* aGradientData, VGfloat* aGradientMatrix, VGPaint aPaint);

    /**

     * Adds a setColor command to be used with stroke.

     * 

     * @param aRgba RGBA color in hex format

     */

    void AddStrokeSetColorCommandL(VGuint aRgba);

    /**

     * Adds color ramp to the icon data structure.

     * 

     * @param aStopCount    Count of the color ramps, has to be multiple of 5

     * @param aColorRamps   Color ramp data

     */

    void AddStrokeColorRampCommandL(VGPaint aPaint);

private:

    TInt DoDrawL(const TSize aSize);

    void AddLinearGradientCommandDataL(VGPaint aPaint, VGint aCount, VGfloat* aGradientData, VGfloat* aGradientMatrix);

    void AddRadialGradientCommandDataL(VGPaint aPaint, VGint aCount, VGfloat* aGradientData, VGfloat* aGradientMatrix);

    void AddSetColorCommandDataL(VGuint aRgba);

    void DrawPaintL(VGPaint aPaint, VGMatrixMode aMatrixMode, TUint & aLastPaintType, TUint & aLastPaintColor, VGPaintMode aPaintMode);

    void DrawColorRampL(VGPaint aPaint);

    void SetViewBoxToViewTransformationL(const TSize aSize);

    void SetRotation();

    void UpdateClientMatrices();

    void RestoreClientMatrices();

private:

    TReal32             iViewBoxX;

    TReal32             iViewBoxY;

    TReal32             iViewBoxW;

    TReal32             iViewBoxH;

    TReal32             iRotationAngle;

    TReal32             iRotationX;

    TReal32             iRotationY;

    TInt                iPreserveAspectSetting;

    TInt                iSmilFitSetting;

    CNVGIconData *      iNVGIconData;

    VGPath              iPath;          // when create path fails this handle will be used

    VGPaint             iFillPaint;     // currently just one object for fill paint

    VGPaint             iStrokePaint;   // currently just one object for stroke paint

    // caller's parameters

    VGPaint             iUserStrokePaint;

    VGPaint             iUserFillPaint;

    VGint               iMatrixMode;

    TReal32             iImageMatrix[9];

    TReal32             iPathMatrix[9];

    TReal32             iFillPaintMatrix[9];

    TReal32             iStrokePaintMatrix[9];

    CNvgEngine *        iNVGEngine;

    COpenVGHandleStore* iOpenVGHandles;

    TUint       iLastFillPaintType;

    TUint       iLastStrokePaintType;

    TUint       iLastFillPaintColor;

    TUint       iLastStrkePaintColor;

    TUint       iResetFillPaint;

    VGPaint     iResetStrokePaint;

    };

#endif