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SVGPathElement.h

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00001 /*
00002     Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
00003                   2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
00004 
00005     This file is part of the KDE project
00006 
00007     This library is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU Library General Public
00009     License as published by the Free Software Foundation; either
00010     version 2 of the License, or (at your option) any later version.
00011 
00012     This library is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     Library General Public License for more details.
00016 
00017     You should have received a copy of the GNU Library General Public License
00018     along with this library; see the file COPYING.LIB.  If not, write to
00019     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00020     Boston, MA 02110-1301, USA.
00021 */
00022 
00023 #ifndef SVGPathElement_h
00024 #define SVGPathElement_h
00025 
00026 #if ENABLE(SVG)
00027 #include "SVGAnimatedPathData.h"
00028 #include "SVGExternalResourcesRequired.h"
00029 #include "SVGLangSpace.h"
00030 #include "SVGStyledTransformableElement.h"
00031 #include "SVGTests.h"
00032 
00033 namespace WebCore {
00034 
00035     class SVGPathSeg;
00036     class SVGPathSegArcAbs;
00037     class SVGPathSegArcRel;
00038     class SVGPathSegClosePath;
00039     class SVGPathSegLinetoAbs;
00040     class SVGPathSegLinetoRel;
00041     class SVGPathSegMovetoAbs;
00042     class SVGPathSegMovetoRel;
00043     class SVGPathSegCurvetoCubicAbs;
00044     class SVGPathSegCurvetoCubicRel;
00045     class SVGPathSegLinetoVerticalAbs;
00046     class SVGPathSegLinetoVerticalRel;
00047     class SVGPathSegLinetoHorizontalAbs;
00048     class SVGPathSegLinetoHorizontalRel;
00049     class SVGPathSegCurvetoQuadraticAbs;
00050     class SVGPathSegCurvetoQuadraticRel;
00051     class SVGPathSegCurvetoCubicSmoothAbs;
00052     class SVGPathSegCurvetoCubicSmoothRel;
00053     class SVGPathSegCurvetoQuadraticSmoothAbs;
00054     class SVGPathSegCurvetoQuadraticSmoothRel;
00055     class SVGPathElement : public SVGStyledTransformableElement,
00056                            public SVGTests,
00057                            public SVGLangSpace,
00058                            public SVGExternalResourcesRequired,
00059                            public SVGAnimatedPathData
00060     {
00061     public:
00062         SVGPathElement(const QualifiedName&, Document*);
00063         virtual ~SVGPathElement();
00064         
00065         virtual bool isValid() const { return SVGTests::isValid(); }
00066         float getTotalLength();
00067         FloatPoint getPointAtLength(float distance);
00068         unsigned long getPathSegAtLength(float distance);
00069 
00070         static PassRefPtr<SVGPathSegClosePath> createSVGPathSegClosePath();
00071         static PassRefPtr<SVGPathSegMovetoAbs> createSVGPathSegMovetoAbs(float x, float y);
00072         static PassRefPtr<SVGPathSegMovetoRel> createSVGPathSegMovetoRel(float x, float y);
00073         static PassRefPtr<SVGPathSegLinetoAbs> createSVGPathSegLinetoAbs(float x, float y);
00074         static PassRefPtr<SVGPathSegLinetoRel> createSVGPathSegLinetoRel(float x, float y);
00075         static PassRefPtr<SVGPathSegCurvetoCubicAbs> createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2);
00076         static PassRefPtr<SVGPathSegCurvetoCubicRel> createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2);
00077         static PassRefPtr<SVGPathSegCurvetoQuadraticAbs> createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1);
00078         static PassRefPtr<SVGPathSegCurvetoQuadraticRel> createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1);
00079         static PassRefPtr<SVGPathSegArcAbs> createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
00080         static PassRefPtr<SVGPathSegArcRel> createSVGPathSegArcRel(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
00081         static PassRefPtr<SVGPathSegLinetoHorizontalAbs> createSVGPathSegLinetoHorizontalAbs(float x);
00082         static PassRefPtr<SVGPathSegLinetoHorizontalRel> createSVGPathSegLinetoHorizontalRel(float x);
00083         static PassRefPtr<SVGPathSegLinetoVerticalAbs> createSVGPathSegLinetoVerticalAbs(float y);
00084         static PassRefPtr<SVGPathSegLinetoVerticalRel> createSVGPathSegLinetoVerticalRel(float y);
00085         static PassRefPtr<SVGPathSegCurvetoCubicSmoothAbs> createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2);
00086         static PassRefPtr<SVGPathSegCurvetoCubicSmoothRel> createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2);
00087         static PassRefPtr<SVGPathSegCurvetoQuadraticSmoothAbs> createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y);
00088         static PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y);
00089 
00090         // Derived from: 'SVGAnimatedPathData'
00091         virtual SVGPathSegList* pathSegList() const;
00092         virtual SVGPathSegList* normalizedPathSegList() const;
00093         virtual SVGPathSegList* animatedPathSegList() const;
00094         virtual SVGPathSegList* animatedNormalizedPathSegList() const;
00095 
00096         virtual void parseMappedAttribute(MappedAttribute*);
00097         virtual void svgAttributeChanged(const QualifiedName&);
00098 
00099         virtual Path toPathData() const;
00100 
00101         virtual bool supportsMarkers() const { return true; }
00102 
00103         // KHTML ElementImpl pure virtual method
00104         virtual quint32 id() const;
00105         virtual DOMString tagName() const;
00106 
00107     protected:
00108         virtual const SVGElement* contextElement() const { return this; }
00109 
00110     private:
00111         mutable RefPtr<SVGPathSegList> m_pathSegList;
00112 
00113         ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGExternalResourcesRequired, bool, ExternalResourcesRequired, externalResourcesRequired)
00114  
00115         ANIMATED_PROPERTY_DECLARATIONS(SVGPathElement, float, float, PathLength, pathLength)
00116     };
00117 
00118 } // namespace WebCore
00119 
00120 #endif // ENABLE(SVG)
00121 #endif

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