/*

* Copyright (c) 2002 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:  Graphics Extension Library header file

*

*/

#ifndef GFXELLIPSEITERATORP_H

#define GFXELLIPSEITERATORP_H

#include <e32std.h>

#include "GfxFloatFixPt.h"

#include "GfxPathIterator.h"

class TGfxEllipse2D;

class TGfxAffineTransform;

/**

 * Implementation of an ellipse iterator.

 *

 *  @lib Gfx2D.lib

 *  @since 1.0

 */

class CGfxEllipseIteratorP : public CGfxPathIterator

    {

    public:

        /**

         * Construct an ellipse iterator.

         *

         * @since 1.0

         * @param aEllipse : ellipse to create iterator for.

         * @param aTransform : transform to apply to defining points.

         * @return

         */

                        CGfxEllipseIteratorP( TGfxEllipse2D* aEllipse,

                                              TGfxAffineTransform* aTransform );

        /**

         * Get the points defining the ellipse and the segment type.

         *

         * @since 1.0

         * @param aCoords : point storage

         * @return segment type

         */

        TGfxSegType     CurrentSegment( TFloatFixPt * aCoords );

        /**

         * Determine wether end of iterator has been reached.

         *

         * @since 1.0

         * @return true if end of iterator

         */

        TBool           IsDone();

        /**

         * Cycle to the next point of this iterator.

         *

         * @since 1.0

         * @return

         */

        void            NextL();

        /**

         * Write points of the ellipse to be a polygon.

         *

         * @since 1.0

         * @param aRenderer : point storage

         * @param aFlatness : number of points to generate.

         * @return

         */

    private:

        TGfxEllipse2D*  iEllipse;

        TInt32          iIdx;

    };

#endif      // GFXELLIPSEITERATORP_H