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1 /*
2  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3  * Copyright (C) 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 "SVGAnimatedBoolean.h"
26 #include "SVGAnimatedNumber.h"
27 #include "SVGAnimatedPathSegListPropertyTearOff.h"
28 #include "SVGExternalResourcesRequired.h"
29 #include "SVGLangSpace.h"
30 #include "SVGPathByteStream.h"
31 #include "SVGStyledTransformableElement.h"
32 #include "SVGTests.h"
33 
34 namespace WebCore {
35 
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 
56 class SVGPathElement : public SVGStyledTransformableElement,
57                        public SVGTests,
58                        public SVGLangSpace,
59                        public SVGExternalResourcesRequired {
60 public:
61     static PassRefPtr<SVGPathElement> create(const QualifiedName&, Document*);
62 
63     float getTotalLength();
64     FloatPoint getPointAtLength(float distance);
65     unsigned long getPathSegAtLength(float distance);
66 
67     PassRefPtr<SVGPathSegClosePath> createSVGPathSegClosePath(SVGPathSegRole role = PathSegUndefinedRole);
68     PassRefPtr<SVGPathSegMovetoAbs> createSVGPathSegMovetoAbs(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
69     PassRefPtr<SVGPathSegMovetoRel> createSVGPathSegMovetoRel(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
70     PassRefPtr<SVGPathSegLinetoAbs> createSVGPathSegLinetoAbs(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
71     PassRefPtr<SVGPathSegLinetoRel> createSVGPathSegLinetoRel(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
72     PassRefPtr<SVGPathSegCurvetoCubicAbs> createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2, SVGPathSegRole role = PathSegUndefinedRole);
73     PassRefPtr<SVGPathSegCurvetoCubicRel> createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2, SVGPathSegRole role = PathSegUndefinedRole);
74     PassRefPtr<SVGPathSegCurvetoQuadraticAbs> createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1, SVGPathSegRole role = PathSegUndefinedRole);
75     PassRefPtr<SVGPathSegCurvetoQuadraticRel> createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1, SVGPathSegRole role = PathSegUndefinedRole);
76     PassRefPtr<SVGPathSegArcAbs> createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag, SVGPathSegRole role = PathSegUndefinedRole);
77     PassRefPtr<SVGPathSegArcRel> createSVGPathSegArcRel(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag, SVGPathSegRole role = PathSegUndefinedRole);
78     PassRefPtr<SVGPathSegLinetoHorizontalAbs> createSVGPathSegLinetoHorizontalAbs(float x, SVGPathSegRole role = PathSegUndefinedRole);
79     PassRefPtr<SVGPathSegLinetoHorizontalRel> createSVGPathSegLinetoHorizontalRel(float x, SVGPathSegRole role = PathSegUndefinedRole);
80     PassRefPtr<SVGPathSegLinetoVerticalAbs> createSVGPathSegLinetoVerticalAbs(float y, SVGPathSegRole role = PathSegUndefinedRole);
81     PassRefPtr<SVGPathSegLinetoVerticalRel> createSVGPathSegLinetoVerticalRel(float y, SVGPathSegRole role = PathSegUndefinedRole);
82     PassRefPtr<SVGPathSegCurvetoCubicSmoothAbs> createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2, SVGPathSegRole role = PathSegUndefinedRole);
83     PassRefPtr<SVGPathSegCurvetoCubicSmoothRel> createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2, SVGPathSegRole role = PathSegUndefinedRole);
84     PassRefPtr<SVGPathSegCurvetoQuadraticSmoothAbs> createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
85     PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
86 
87     // Used in the bindings only.
88     SVGPathSegListPropertyTearOff* pathSegList();
89     SVGPathSegListPropertyTearOff* animatedPathSegList();
90     SVGPathSegListPropertyTearOff* normalizedPathSegList();
91     SVGPathSegListPropertyTearOff* animatedNormalizedPathSegList();
92 
pathByteStream()93     SVGPathByteStream* pathByteStream() const { return m_pathByteStream.get(); }
animatablePathSegList()94     SVGAnimatedProperty* animatablePathSegList() const { return m_animatablePathSegList.get(); }
95 
96     virtual void toPathData(Path&) const;
97     void pathSegListChanged(SVGPathSegRole);
98 
99 private:
100     SVGPathElement(const QualifiedName&, Document*);
101 
isValid()102     virtual bool isValid() const { return SVGTests::isValid(); }
103 
104     virtual void parseMappedAttribute(Attribute*);
105     virtual void synchronizeProperty(const QualifiedName&);
106     virtual void svgAttributeChanged(const QualifiedName&);
107     virtual void fillAttributeToPropertyTypeMap();
108     virtual AttributeToPropertyTypeMap& attributeToPropertyTypeMap();
supportsMarkers()109     virtual bool supportsMarkers() const { return true; }
110 
111     // Animated property declarations
112     DECLARE_ANIMATED_NUMBER(PathLength, pathLength)
113 
114     // SVGExternalResourcesRequired
115     DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
116 
117     void synchronizeD();
118 
119 protected:
120     OwnPtr<SVGPathByteStream> m_pathByteStream;
121     mutable SVGSynchronizableAnimatedProperty<SVGPathSegList> m_pathSegList;
122     RefPtr<SVGAnimatedPathSegListPropertyTearOff> m_animatablePathSegList;
123 };
124 
125 } // namespace WebCore
126 
127 #endif // ENABLE(SVG)
128 #endif
129