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 library is free software; you can redistribute it and/or

     6     modify it under the terms of the GNU Library General Public

     7     License as published by the Free Software Foundation; either

     8     version 2 of the License, or (at your option) any later version.

     9 

    10     This library is distributed in the hope that it will be useful,

    11     but WITHOUT ANY WARRANTY; without even the implied warranty of

    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13     Library General Public License for more details.

    14 

    15     You should have received a copy of the GNU Library General Public License

    16     along with this library; see the file COPYING.LIB.  If not, write to

    17     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    18     Boston, MA 02110-1301, USA.

    19 */

    20 

    21 #ifndef SVGPathElement_h

    22 #define SVGPathElement_h

    23 

    24 #if ENABLE(SVG)

    25 #include "SVGAnimatedPathData.h"

    26 #include "SVGExternalResourcesRequired.h"

    27 #include "SVGLangSpace.h"

    28 #include "SVGStyledTransformableElement.h"

    29 #include "SVGTests.h"

    30 

    31 namespace WebCore {

    32 

    33     class SVGPathSeg;

    34     class SVGPathSegArcAbs;

    35     class SVGPathSegArcRel;

    36     class SVGPathSegClosePath;

    37     class SVGPathSegLinetoAbs;

    38     class SVGPathSegLinetoRel;

    39     class SVGPathSegMovetoAbs;

    40     class SVGPathSegMovetoRel;

    41     class SVGPathSegCurvetoCubicAbs;

    42     class SVGPathSegCurvetoCubicRel;

    43     class SVGPathSegLinetoVerticalAbs;

    44     class SVGPathSegLinetoVerticalRel;

    45     class SVGPathSegLinetoHorizontalAbs;

    46     class SVGPathSegLinetoHorizontalRel;

    47     class SVGPathSegCurvetoQuadraticAbs;

    48     class SVGPathSegCurvetoQuadraticRel;

    49     class SVGPathSegCurvetoCubicSmoothAbs;

    50     class SVGPathSegCurvetoCubicSmoothRel;

    51     class SVGPathSegCurvetoQuadraticSmoothAbs;

    52     class SVGPathSegCurvetoQuadraticSmoothRel;

    53     class SVGPathElement : public SVGStyledTransformableElement,

    54                            public SVGTests,

    55                            public SVGLangSpace,

    56                            public SVGExternalResourcesRequired,

    57                            public SVGAnimatedPathData {

    58     public:

    59         SVGPathElement(const QualifiedName&, Document*);

    60         virtual ~SVGPathElement();

    61         

    62         virtual bool isValid() const { return SVGTests::isValid(); }

    63         float getTotalLength();

    64         FloatPoint getPointAtLength(float distance);

    65         unsigned long getPathSegAtLength(float distance, ExceptionCode&);

    66 

    67         static PassRefPtr<SVGPathSegClosePath> createSVGPathSegClosePath();

    68         static PassRefPtr<SVGPathSegMovetoAbs> createSVGPathSegMovetoAbs(float x, float y);

    69         static PassRefPtr<SVGPathSegMovetoRel> createSVGPathSegMovetoRel(float x, float y);

    70         static PassRefPtr<SVGPathSegLinetoAbs> createSVGPathSegLinetoAbs(float x, float y);

    71         static PassRefPtr<SVGPathSegLinetoRel> createSVGPathSegLinetoRel(float x, float y);

    72         static PassRefPtr<SVGPathSegCurvetoCubicAbs> createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2);

    73         static PassRefPtr<SVGPathSegCurvetoCubicRel> createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2);

    74         static PassRefPtr<SVGPathSegCurvetoQuadraticAbs> createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1);

    75         static PassRefPtr<SVGPathSegCurvetoQuadraticRel> createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1);

    76         static PassRefPtr<SVGPathSegArcAbs> createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);

    77         static PassRefPtr<SVGPathSegArcRel> createSVGPathSegArcRel(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag);

    78         static PassRefPtr<SVGPathSegLinetoHorizontalAbs> createSVGPathSegLinetoHorizontalAbs(float x);

    79         static PassRefPtr<SVGPathSegLinetoHorizontalRel> createSVGPathSegLinetoHorizontalRel(float x);

    80         static PassRefPtr<SVGPathSegLinetoVerticalAbs> createSVGPathSegLinetoVerticalAbs(float y);

    81         static PassRefPtr<SVGPathSegLinetoVerticalRel> createSVGPathSegLinetoVerticalRel(float y);

    82         static PassRefPtr<SVGPathSegCurvetoCubicSmoothAbs> createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2);

    83         static PassRefPtr<SVGPathSegCurvetoCubicSmoothRel> createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2);

    84         static PassRefPtr<SVGPathSegCurvetoQuadraticSmoothAbs> createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y);

    85         static PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y);

    86 

    87         // Derived from: 'SVGAnimatedPathData'

    88         virtual SVGPathSegList* pathSegList() const;

    89         virtual SVGPathSegList* normalizedPathSegList() const;

    90         virtual SVGPathSegList* animatedPathSegList() const;

    91         virtual SVGPathSegList* animatedNormalizedPathSegList() const;

    92 

    93         virtual void parseMappedAttribute(Attribute*);

    94         virtual void svgAttributeChanged(const QualifiedName&);

    95         virtual void synchronizeProperty(const QualifiedName&);

    96 

    97         virtual Path toPathData() const;

    98 

    99         virtual bool supportsMarkers() const { return true; }

   100 

   101     private:

   102         mutable RefPtr<SVGPathSegList> m_pathSegList;

   103 

   104         DECLARE_ANIMATED_PROPERTY(SVGPathElement, SVGNames::pathLengthAttr, float, PathLength, pathLength)

   105 

   106         // SVGExternalResourcesRequired

   107         DECLARE_ANIMATED_PROPERTY(SVGPathElement, SVGNames::externalResourcesRequiredAttr, bool, ExternalResourcesRequired, externalResourcesRequired)

   108     };

   109 

   110 } // namespace WebCore

   111 

   112 #endif // ENABLE(SVG)

   113 #endif