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#include "SVGAnimatedBoolean.h"
25#include "SVGAnimatedNumber.h"
26#include "SVGExternalResourcesRequired.h"
27#include "SVGGraphicsElement.h"
28#include "SVGNames.h"
29#include "SVGPathByteStream.h"
30#include "SVGPathSegList.h"
31
32namespace WebCore {
33
34class SVGPathSegArcAbs;
35class SVGPathSegArcRel;
36class SVGPathSegClosePath;
37class SVGPathSegLinetoAbs;
38class SVGPathSegLinetoRel;
39class SVGPathSegMovetoAbs;
40class SVGPathSegMovetoRel;
41class SVGPathSegCurvetoCubicAbs;
42class SVGPathSegCurvetoCubicRel;
43class SVGPathSegLinetoVerticalAbs;
44class SVGPathSegLinetoVerticalRel;
45class SVGPathSegLinetoHorizontalAbs;
46class SVGPathSegLinetoHorizontalRel;
47class SVGPathSegCurvetoQuadraticAbs;
48class SVGPathSegCurvetoQuadraticRel;
49class SVGPathSegCurvetoCubicSmoothAbs;
50class SVGPathSegCurvetoCubicSmoothRel;
51class SVGPathSegCurvetoQuadraticSmoothAbs;
52class SVGPathSegCurvetoQuadraticSmoothRel;
53class SVGPathSegListPropertyTearOff;
54
55class SVGPathElement final : public SVGGraphicsElement,
56                             public SVGExternalResourcesRequired {
57public:
58    static PassRefPtr<SVGPathElement> create(const QualifiedName&, Document&);
59
60    float getTotalLength();
61    SVGPoint getPointAtLength(float distance);
62    unsigned getPathSegAtLength(float distance);
63
64    PassRefPtr<SVGPathSegClosePath> createSVGPathSegClosePath(SVGPathSegRole role = PathSegUndefinedRole);
65    PassRefPtr<SVGPathSegMovetoAbs> createSVGPathSegMovetoAbs(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
66    PassRefPtr<SVGPathSegMovetoRel> createSVGPathSegMovetoRel(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
67    PassRefPtr<SVGPathSegLinetoAbs> createSVGPathSegLinetoAbs(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
68    PassRefPtr<SVGPathSegLinetoRel> createSVGPathSegLinetoRel(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
69    PassRefPtr<SVGPathSegCurvetoCubicAbs> createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2, SVGPathSegRole role = PathSegUndefinedRole);
70    PassRefPtr<SVGPathSegCurvetoCubicRel> createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2, SVGPathSegRole role = PathSegUndefinedRole);
71    PassRefPtr<SVGPathSegCurvetoQuadraticAbs> createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1, SVGPathSegRole role = PathSegUndefinedRole);
72    PassRefPtr<SVGPathSegCurvetoQuadraticRel> createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1, SVGPathSegRole role = PathSegUndefinedRole);
73    PassRefPtr<SVGPathSegArcAbs> createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag, SVGPathSegRole role = PathSegUndefinedRole);
74    PassRefPtr<SVGPathSegArcRel> createSVGPathSegArcRel(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag, SVGPathSegRole role = PathSegUndefinedRole);
75    PassRefPtr<SVGPathSegLinetoHorizontalAbs> createSVGPathSegLinetoHorizontalAbs(float x, SVGPathSegRole role = PathSegUndefinedRole);
76    PassRefPtr<SVGPathSegLinetoHorizontalRel> createSVGPathSegLinetoHorizontalRel(float x, SVGPathSegRole role = PathSegUndefinedRole);
77    PassRefPtr<SVGPathSegLinetoVerticalAbs> createSVGPathSegLinetoVerticalAbs(float y, SVGPathSegRole role = PathSegUndefinedRole);
78    PassRefPtr<SVGPathSegLinetoVerticalRel> createSVGPathSegLinetoVerticalRel(float y, SVGPathSegRole role = PathSegUndefinedRole);
79    PassRefPtr<SVGPathSegCurvetoCubicSmoothAbs> createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2, SVGPathSegRole role = PathSegUndefinedRole);
80    PassRefPtr<SVGPathSegCurvetoCubicSmoothRel> createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2, SVGPathSegRole role = PathSegUndefinedRole);
81    PassRefPtr<SVGPathSegCurvetoQuadraticSmoothAbs> createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
82    PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y, SVGPathSegRole role = PathSegUndefinedRole);
83
84    // Used in the bindings only.
85    SVGPathSegListPropertyTearOff* pathSegList();
86    SVGPathSegListPropertyTearOff* animatedPathSegList();
87    SVGPathSegListPropertyTearOff* normalizedPathSegList();
88    SVGPathSegListPropertyTearOff* animatedNormalizedPathSegList();
89
90    SVGPathByteStream* pathByteStream() const;
91
92    void pathSegListChanged(SVGPathSegRole, ListModification = ListModificationUnknown);
93
94    virtual FloatRect getBBox(StyleUpdateStrategy = AllowStyleUpdate) override;
95
96    static const SVGPropertyInfo* dPropertyInfo();
97
98    bool isAnimValObserved() const { return m_isAnimValObserved; }
99
100private:
101    SVGPathElement(const QualifiedName&, Document&);
102
103    virtual bool isValid() const override { return SVGTests::isValid(); }
104
105    bool isSupportedAttribute(const QualifiedName&);
106    virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
107    virtual void svgAttributeChanged(const QualifiedName&) override;
108    virtual bool supportsMarkers() const override { return true; }
109
110    // Custom 'd' property
111    static void synchronizeD(SVGElement* contextElement);
112    static PassRefPtr<SVGAnimatedProperty> lookupOrCreateDWrapper(SVGElement* contextElement);
113
114    BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGPathElement)
115        DECLARE_ANIMATED_NUMBER(PathLength, pathLength)
116        DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
117    END_DECLARE_ANIMATED_PROPERTIES
118
119    virtual RenderPtr<RenderElement> createElementRenderer(PassRef<RenderStyle>) override;
120
121    virtual Node::InsertionNotificationRequest insertedInto(ContainerNode&) override;
122    virtual void removedFrom(ContainerNode&) override;
123
124    void invalidateMPathDependencies();
125
126private:
127    std::unique_ptr<SVGPathByteStream> m_pathByteStream;
128    mutable SVGSynchronizableAnimatedProperty<SVGPathSegList> m_pathSegList;
129    bool m_isAnimValObserved;
130};
131
132NODE_TYPE_CASTS(SVGPathElement)
133
134} // namespace WebCore
135
136#endif
137