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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 SVGPathSegListBuilder_h
     25 #define SVGPathSegListBuilder_h
     26 
     27 #if ENABLE(SVG)
     28 #include "FloatPoint.h"
     29 #include "SVGPathConsumer.h"
     30 #include "SVGPathElement.h"
     31 #include "SVGPathSegList.h"
     32 
     33 namespace WebCore {
     34 
     35 class SVGPathSegListBuilder : public SVGPathConsumer {
     36 public:
     37     SVGPathSegListBuilder();
     38 
     39     void setCurrentSVGPathElement(SVGPathElement* pathElement) { m_pathElement = pathElement; }
     40     void setCurrentSVGPathSegList(SVGPathSegList& pathSegList) { m_pathSegList = &pathSegList; }
     41     void setCurrentSVGPathSegRole(SVGPathSegRole pathSegRole) { m_pathSegRole = pathSegRole; }
     42 
     43 private:
     44     virtual void incrementPathSegmentCount() { }
     45     virtual bool continueConsuming() { return true; }
     46     virtual void cleanup()
     47     {
     48         m_pathElement = 0;
     49         m_pathSegList = 0;
     50         m_pathSegRole = PathSegUndefinedRole;
     51     }
     52 
     53     // Used in UnalteredParisng/NormalizedParsing modes.
     54     virtual void moveTo(const FloatPoint&, bool closed, PathCoordinateMode);
     55     virtual void lineTo(const FloatPoint&, PathCoordinateMode);
     56     virtual void curveToCubic(const FloatPoint&, const FloatPoint&, const FloatPoint&, PathCoordinateMode);
     57     virtual void closePath();
     58 
     59     // Only used in UnalteredParsing mode.
     60     virtual void lineToHorizontal(float, PathCoordinateMode);
     61     virtual void lineToVertical(float, PathCoordinateMode);
     62     virtual void curveToCubicSmooth(const FloatPoint&, const FloatPoint&, PathCoordinateMode);
     63     virtual void curveToQuadratic(const FloatPoint&, const FloatPoint&, PathCoordinateMode);
     64     virtual void curveToQuadraticSmooth(const FloatPoint&, PathCoordinateMode);
     65     virtual void arcTo(float, float, float, bool largeArcFlag, bool sweepFlag, const FloatPoint&, PathCoordinateMode);
     66 
     67     SVGPathElement* m_pathElement;
     68     SVGPathSegList* m_pathSegList;
     69     SVGPathSegRole m_pathSegRole;
     70 };
     71 
     72 } // namespace WebCore
     73 
     74 #endif // ENABLE(SVG)
     75 #endif // SVGPathSegListBuilder_h
     76