svgtopt/gfx2d/inc/GfxGeneralPathIteratorP.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 07 Jan 2010 16:19:02 +0200
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/*
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* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Graphics Extension Library header file
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*
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*/
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#ifndef CGFXGENERALPATHITERATORP
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#define CGFXGENERALPATHITERATORP
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#include <e32std.h>
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#include <e32base.h>
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#include "GfxFloatFixPt.h"
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#include "GfxPathIterator.h"
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#include "GfxAffineTransform.h"
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#include "GfxPoint2D.h"
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class CGfxGeneralPath;
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/**
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 * This class provides the methods to cycle through points in a path.
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 *
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 *  @lib Gfx2D.lib
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 *  @since 1.0
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 */
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class CGfxGeneralPathIteratorP : public CGfxPathIterator
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    {
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    public:
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        /**
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         * Contructor.
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         *
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         * @since 1.0
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         * @param aPath : path to cycle through.
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         * @param aTransform : transform to apply.
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         * @return
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         */
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                        CGfxGeneralPathIteratorP( CGfxGeneralPath* aPath,
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                                                          TGfxAffineTransform* aTransform );
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        /**
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         * Destructor.
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         *
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         * @since 1.0
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         * @return
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         */
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                        ~CGfxGeneralPathIteratorP();
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        // implementation of CGfxPathIterator
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        /**
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         * Get the point defining the current segment.
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         *
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         * @since 1.0
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         * @param aCoords : storage for points.
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         * @return segment type.
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         */
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         TGfxSegType    CurrentSegment( TFloatFixPt* aCoords );
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        /**
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         * Determine if end of iterator has been reached.
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         *
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         * @since 1.0
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         * @return true, if iterator reached end.
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         */
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         TBool          IsDone();
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        /**
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         * Cycle to the next segment of the path.
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         *
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         * @since 1.0
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         * @return
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         */
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         void           NextL();
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    private:
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        TInt32                  iTypeIdx;
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        TInt32                  iPointIdx;
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        CGfxGeneralPath*        iPath;
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        TGfxPoint2D             iStartPoint;
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    };
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#endif      // CGFXGENERALPATHITERATORP