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      1 /*
      2  * Copyright (C) 2002, 2003 The Karbon Developers
      3  * Copyright (C) 2006 Alexander Kellett <lypanov (at) kde.org>
      4  * Copyright (C) 2006, 2007 Rob Buis <buis (at) kde.org>
      5  * Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
      6  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
      7  *
      8  * This library is free software; you can redistribute it and/or
      9  * modify it under the terms of the GNU Library General Public
     10  * License as published by the Free Software Foundation; either
     11  * version 2 of the License, or (at your option) any later version.
     12  *
     13  * This library is distributed in the hope that it will be useful,
     14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     16  * Library General Public License for more details.
     17  *
     18  * You should have received a copy of the GNU Library General Public License
     19  * along with this library; see the file COPYING.LIB.  If not, write to
     20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     21  * Boston, MA 02110-1301, USA.
     22  */
     23 
     24 #ifndef SVGPathBuilder_h
     25 #define SVGPathBuilder_h
     26 
     27 #include "core/platform/graphics/FloatPoint.h"
     28 #include "core/svg/SVGPathConsumer.h"
     29 
     30 namespace WebCore {
     31 
     32 class Path;
     33 
     34 class SVGPathBuilder : public SVGPathConsumer {
     35 public:
     36     SVGPathBuilder();
     37 
     38     void setCurrentPath(Path* path) { m_path = path; }
     39 
     40 private:
     41     virtual void incrementPathSegmentCount() { }
     42     virtual bool continueConsuming() { return true; }
     43     virtual void cleanup() { m_path = 0; }
     44 
     45     // Used in UnalteredParsing/NormalizedParsing modes.
     46     virtual void moveTo(const FloatPoint&, bool closed, PathCoordinateMode);
     47     virtual void lineTo(const FloatPoint&, PathCoordinateMode);
     48     virtual void curveToCubic(const FloatPoint&, const FloatPoint&, const FloatPoint&, PathCoordinateMode);
     49     virtual void closePath();
     50 
     51     // Only used in UnalteredParsing mode.
     52     virtual void lineToHorizontal(float, PathCoordinateMode) { ASSERT_NOT_REACHED(); }
     53     virtual void lineToVertical(float, PathCoordinateMode) { ASSERT_NOT_REACHED(); }
     54     virtual void curveToCubicSmooth(const FloatPoint&, const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); }
     55     virtual void curveToQuadratic(const FloatPoint&, const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); }
     56     virtual void curveToQuadraticSmooth(const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); }
     57     virtual void arcTo(float, float, float, bool, bool, const FloatPoint&, PathCoordinateMode) { ASSERT_NOT_REACHED(); }
     58 
     59     Path* m_path;
     60     FloatPoint m_current;
     61 };
     62 
     63 } // namespace WebCore
     64 
     65 #endif // SVGPathBuilder_h
     66