--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/svgtopt/gfx2d/inc/GfxFlatteningPathIterator.h Wed Nov 03 18:56:10 2010 +0200
@@ -0,0 +1,198 @@
+/*
+* 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 GFXFLATTENINGPATHITERATOR_H
+#define GFXFLATTENINGPATHITERATOR_H
+
+#include <e32base.h>
+#include <e32std.h>
+
+#include "GfxFloatFixPt.h"
+#include "GfxPathIterator.h"
+
+
+
+class TGfxAffineTransform;
+class MGfxShape;
+
+/**
+ * This class provides the methods to smooth a path.
+ *
+ * @lib Gfx2D.lib
+ * @since 1.0
+ */
+class CGfxFlatteningPathIterator : public CGfxPathIterator
+ {
+ public:
+
+ /**
+ * Two-phase constructor.
+ *
+ * @since 1.0
+ * @param aSrc : source of path of flatten
+ * @param aAt : transform to apply.
+ * @param aFlatness : degree of flattening to apply.
+ * @param aLimit : maximum number of points used for flattening.
+ * @return
+ */
+ static CGfxFlatteningPathIterator* NewL( MGfxShape* aSrc,
+ TGfxAffineTransform* aAt,
+ TInt32 aLimit );
+
+
+ /**
+ * Destructor
+ *
+ * @since 1.0
+ * @return
+ */
+ virtual ~CGfxFlatteningPathIterator();
+
+
+ /**
+ * Set the degree of flattening to apply.
+ *
+ * @since 1.0
+ * @param aFlatness : degree of flattening.
+ * @return
+ */
+
+ void SetFlatness( TFloatFixPt& aFlatness );
+
+ /**
+ * Set the recursion level.
+ *
+ * @since 1.0
+ * @param aLimit : recursion level.
+ * @return
+ */
+ void SetRecursionLimit( TInt32 aLimit );
+
+ /**
+ * Get the flattening level..
+ *
+ * @since 1.0
+ * @param aLimit : recursion level.
+ * @return flattening value.
+ */
+
+ TFloatFixPt Flatness();
+
+ /**
+ * Get the recursion level.
+ *
+ * @since 1.0
+ * @return the recursion level.
+ */
+ TInt32 RecursionLimit();
+
+
+ /**
+ * Get the points defining the current segment of iteration.
+ *
+ * @since 1.0
+ * @param aCoords : array to store segment points.
+ * @return segment type.
+ */
+ TGfxSegType CurrentSegment( TFloatFixPt* aCoords );
+
+ /**
+ * Determine wether the end has been reached.
+ *
+ * @since 1.0
+ * @return true, if end of iterator reached.
+ */
+ TBool IsDone();
+
+ /**
+ * Cycle to the next segment of this iterator.
+ *
+ * @since 1.0
+ * @return
+ */
+ void NextL();
+
+
+ /**
+ * Create a polygon from iterator. This method is does nothing.
+ *
+ * @since 1.0
+ * @return
+ */
+ void PolygonizeL( CGfxEdgeListP* aRenderer, TInt aFlatness );
+
+ private:
+
+ /**
+ * Constructor
+ *
+ * @since 1.0
+ * @param aFlatness : degree of flattening to apply.
+ * @param aLimit : maximum number of points used for flattening.
+ * @return
+ */
+ CGfxFlatteningPathIterator( TInt32 aLimit );
+
+ /**
+ * Second phase of constrction.
+ *
+ * @since 1.0
+ * @param aSrc : source of path of flatten
+ * @param aAt : transform to apply.
+ * @return
+ */
+ void ConstructL( MGfxShape* aSrc,
+ TGfxAffineTransform* aAt );
+
+
+ /**
+ * Create a quadratic sub-curve.
+ *
+ * @since 1.0
+ * @param aCtrlPoints : quadratic control points.
+ * @return
+ */
+ void CreateSubcurveQuadL( RArray<TFloatFixPt>* aCtrlPoints );
+
+ /**
+ * Create a cubic sub-curve.
+ *
+ * @since 1.0
+ * @param aCtrlPoints : cubic control points.
+ * @return
+ */
+ void CreateSubcurveCubicL( RArray<TFloatFixPt>* aCtrlPoints );
+
+ private:
+ RArray<TFloatFixPt>* iCoords;
+ TInt32 iIdx;
+ CGfxPathIterator* iSrc;
+ TFloatFixPt iLastX;
+ TFloatFixPt iLastY;
+ TGfxSegType iSegType;
+ TBool iIsDone;
+
+ TInt32 iLimit;
+
+ TFloatFixPt iFlatness;
+
+
+
+ };
+
+#endif // GFXFLATTENINGPATHITERATOR_H