/*

* 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 GFXLINEITERATORP_H

#define GFXLINEITERATORP_H

#include <e32std.h>

#include "GfxFloatFixPt.h"

#include "GfxLine2D.h"

#include "GfxAffineTransform.h"

class MGfxPathIterator;

/**

 * This class provides the methods to cycle through points in a line.

 *

 *  @lib Gfx2D.lib

 *  @since 1.0

 */

class CGfxLineIteratorP : public CGfxPathIterator

    {

    public:

        /**

         * Contructor.

         *

         * @since 1.0

         * @param aLine : line to cycle through.

         * @param aAffine : transform to apply.

         * @return

         */

        CGfxLineIteratorP( TGfxLine2D* aLine, TGfxAffineTransform* aAffine );

        /**

         * Destructor.

         *

         * @since 1.0

         * @return

         */

        ~CGfxLineIteratorP();

        // Implementing MGfxPathIterator

        /**

         * Get the point defining the current segment.

         *

         * @since 1.0

         * @param aCoords : storage for points.

         * @return segment type.

         */

        TGfxSegType     CurrentSegment( TFloatFixPt* aCoords );

        /**

         * Determine if end of iterator has been reached.

         *

         * @since 1.0

         * @return true, if iterator reached end.

         */

        TBool           IsDone();

        /**

         * Cycle to the next segment of the path.

         *

         * @since 1.0

         * @return

         */

         void            NextL();

        /**

         * Convert to a polygon.

         *

         * @since 1.0

         * @param aRenderer : storage for points of polygon.

         * @param aFlatness : level of smoothness.

         * @return true, if iterator reached end.

         */

    private:

        TGfxLine2D*     iLine;

        TInt32          iIdx;

    };

#endif      // GFXLINEITERATORP_H