khtml/svg/SVGPathElement.h

   1 /*
   2     Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
   4
   5     This file is part of the KDE project
   6
   7     This library is free software; you can redistribute it and/or
   8     modify it under the terms of the GNU Library General Public
   9     License as published by the Free Software Foundation; either
  10     version 2 of the License, or (at your option) any later version.
  11
  12     This library is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15     Library General Public License for more details.
  16
  17     You should have received a copy of the GNU Library General Public License
  18     along with this library; see the file COPYING.LIB.  If not, write to
  19     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20     Boston, MA 02110-1301, USA.
  21 */
  22
  23 #ifndef SVGPathElement_h
  24 #define SVGPathElement_h
  25
  26 #if ENABLE(SVG)
  27 #include "SVGAnimatedPathData.h"
  28 #include "SVGExternalResourcesRequired.h"
  29 #include "SVGLangSpace.h"
  30 #include "SVGStyledTransformableElement.h"
  31 #include "SVGTests.h"
  32
  33 namespace WebCore {
  34
  35     class SVGPathSeg;
  36     class SVGPathSegArcAbs;
  37     class SVGPathSegArcRel;
  38     class SVGPathSegClosePath;
  39     class SVGPathSegLinetoAbs;
  40     class SVGPathSegLinetoRel;
  41     class SVGPathSegMovetoAbs;
  42     class SVGPathSegMovetoRel;
  43     class SVGPathSegCurvetoCubicAbs;
  44     class SVGPathSegCurvetoCubicRel;
  45     class SVGPathSegLinetoVerticalAbs;
  46     class SVGPathSegLinetoVerticalRel;
  47     class SVGPathSegLinetoHorizontalAbs;
  48     class SVGPathSegLinetoHorizontalRel;
  49     class SVGPathSegCurvetoQuadraticAbs;
  50     class SVGPathSegCurvetoQuadraticRel;
  51     class SVGPathSegCurvetoCubicSmoothAbs;
  52     class SVGPathSegCurvetoCubicSmoothRel;
  53     class SVGPathSegCurvetoQuadraticSmoothAbs;
  54     class SVGPathSegCurvetoQuadraticSmoothRel;
  55     class SVGPathElement : public SVGStyledTransformableElement,
  56                            public SVGTests,
  57                            public SVGLangSpace,
  58                            public SVGExternalResourcesRequired,
  59                            public SVGAnimatedPathData
  60     {
  61     public:
  62         SVGPathElement(const QualifiedName&, Document*);
  63         virtual ~SVGPathElement();
  64
  65         virtual bool isValid() const { return SVGTests::isValid(); }
  66         float getTotalLength();
  67         FloatPoint getPointAtLength(float distance);
  68         unsigned long getPathSegAtLength(float distance);
  69
  70         static PassRefPtr<SVGPathSegClosePath> createSVGPathSegClosePath();
  71         static PassRefPtr<SVGPathSegMovetoAbs> createSVGPathSegMovetoAbs(float x, float y);
  72         static PassRefPtr<SVGPathSegMovetoRel> createSVGPathSegMovetoRel(float x, float y);
  73         static PassRefPtr<SVGPathSegLinetoAbs> createSVGPathSegLinetoAbs(float x, float y);
  74         static PassRefPtr<SVGPathSegLinetoRel> createSVGPathSegLinetoRel(float x, float y);
  75         static PassRefPtr<SVGPathSegCurvetoCubicAbs> createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2);
  76         static PassRefPtr<SVGPathSegCurvetoCubicRel> createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2);
  77         static PassRefPtr<SVGPathSegCurvetoQuadraticAbs> createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1);
  78         static PassRefPtr<SVGPathSegCurvetoQuadraticRel> createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1);
  79         static PassRefPtr<SVGPathSegArcAbs> createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
  80         static PassRefPtr<SVGPathSegArcRel> createSVGPathSegArcRel(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);
  81         static PassRefPtr<SVGPathSegLinetoHorizontalAbs> createSVGPathSegLinetoHorizontalAbs(float x);
  82         static PassRefPtr<SVGPathSegLinetoHorizontalRel> createSVGPathSegLinetoHorizontalRel(float x);
  83         static PassRefPtr<SVGPathSegLinetoVerticalAbs> createSVGPathSegLinetoVerticalAbs(float y);
  84         static PassRefPtr<SVGPathSegLinetoVerticalRel> createSVGPathSegLinetoVerticalRel(float y);
  85         static PassRefPtr<SVGPathSegCurvetoCubicSmoothAbs> createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2);
  86         static PassRefPtr<SVGPathSegCurvetoCubicSmoothRel> createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2);
  87         static PassRefPtr<SVGPathSegCurvetoQuadraticSmoothAbs> createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y);
  88         static PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y);
  89
  90         // Derived from: 'SVGAnimatedPathData'
  91         virtual SVGPathSegList* pathSegList() const;
  92         virtual SVGPathSegList* normalizedPathSegList() const;
  93         virtual SVGPathSegList* animatedPathSegList() const;
  94         virtual SVGPathSegList* animatedNormalizedPathSegList() const;
  95
  96         virtual void parseMappedAttribute(MappedAttribute*);
  97         virtual void svgAttributeChanged(const QualifiedName&);
  98
  99         virtual Path toPathData() const;
 100
 101         virtual bool supportsMarkers() const { return true; }
 102
 103         // KHTML ElementImpl pure virtual method
 104         virtual quint32 id() const;
 105         virtual DOMString tagName() const;
 106
 107     protected:
 108         virtual const SVGElement* contextElement() const { return this; }
 109
 110     private:
 111         mutable RefPtr<SVGPathSegList> m_pathSegList;
 112
 113         ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGExternalResourcesRequired, bool, ExternalResourcesRequired, externalResourcesRequired)
 114
 115         ANIMATED_PROPERTY_DECLARATIONS(SVGPathElement, float, float, PathLength, pathLength)
 116     };
 117
 118 } // namespace WebCore
 119
 120 #endif // ENABLE(SVG)
 121 #endif