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SVGUseElement.h
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1/*
2 Copyright (C) 2004, 2005, 2006, 2007, 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 SVGUseElement_h
24#define SVGUseElement_h
25
26#if ENABLE(SVG)
27#include "SVGExternalResourcesRequired.h"
28#include "SVGLangSpace.h"
29#include "SVGStyledTransformableElement.h"
30#include "SVGTests.h"
31#include "SVGURIReference.h"
32
33namespace WebCore {
34
35 class SVGElementInstance;
36 class SVGLength;
37
38 class SVGUseElement : public SVGStyledTransformableElement,
39 public SVGTests,
40 public SVGLangSpace,
41 public SVGExternalResourcesRequired,
42 public SVGURIReference {
43 public:
44 SVGUseElement(const QualifiedName&, Document*);
45 virtual ~SVGUseElement();
46
47 SVGElementInstance* instanceRoot() const;
48 SVGElementInstance* animatedInstanceRoot() const;
49
50 virtual bool isValid() const { return SVGTests::isValid(); }
51
52 virtual void insertedIntoDocument();
53 virtual void removedFromDocument();
54 virtual void buildPendingResource();
55
56 virtual void parseMappedAttribute(MappedAttribute*);
57 using DOM::NodeImpl::childrenChanged;
58 virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
59
60 virtual void svgAttributeChanged(const QualifiedName&);
61 virtual void recalcStyle(StyleChange = NoChange);
62
63 virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
64 virtual void attach();
65 virtual void detach();
66
67 virtual Path toClipPath() const;
68
69 static void removeDisallowedElementsFromSubtree(Node* element);
70
71 // KHTML ElementImpl pure virtual method
72 virtual quint32 id() const { return SVGNames::useTag.id(); }
73 protected:
74 virtual const SVGElement* contextElement() const { return this; }
75
76 private:
77 ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGExternalResourcesRequired, bool, ExternalResourcesRequired, externalResourcesRequired)
78 ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGURIReference, String, Href, href)
79
80 ANIMATED_PROPERTY_DECLARATIONS(SVGUseElement, SVGLength, SVGLength, X, x)
81 ANIMATED_PROPERTY_DECLARATIONS(SVGUseElement, SVGLength, SVGLength, Y, y)
82 ANIMATED_PROPERTY_DECLARATIONS(SVGUseElement, SVGLength, SVGLength, Width, width)
83 ANIMATED_PROPERTY_DECLARATIONS(SVGUseElement, SVGLength, SVGLength, Height, height)
84
85 private:
86 friend class SVGElement;
87 SVGElementInstance* instanceForShadowTreeElement(Node* element) const;
88
89 private:
90 // Instance tree handling
91 void buildInstanceTree(SVGElement* target, SVGElementInstance* targetInstance, bool& foundCycle);
92 void handleDeepUseReferencing(SVGElement* use, SVGElementInstance* targetInstance, bool& foundCycle);
93
94 // Shadow tree handling
95 PassRefPtr<SVGSVGElement> buildShadowTreeForSymbolTag(SVGElement* target, SVGElementInstance* targetInstance);
96 void alterShadowTreeForSVGTag(SVGElement* target);
97
98 void buildShadowTree(SVGElement* target, SVGElementInstance* targetInstance);
99
100#if ENABLE(SVG) && ENABLE(SVG_USE)
101 void expandUseElementsInShadowTree(Node* element);
102 void expandSymbolElementsInShadowTree(Node* element);
103#endif
104
105 void attachShadowTree();
106
107 // "Tree connector"
108 void associateInstancesWithShadowTreeElements(Node* target, SVGElementInstance* targetInstance);
109
110 SVGElementInstance* instanceForShadowTreeElement(Node* element, SVGElementInstance* instance) const;
111 void transferUseAttributesToReplacedElement(SVGElement* from, SVGElement* to) const;
112
113 RefPtr<SVGElement> m_shadowTreeRootElement;
114 RefPtr<SVGElementInstance> m_targetElementInstance;
115 };
116
117} // namespace WebCore
118
119#endif // ENABLE(SVG)
120#endif
SVGExternalResourcesRequired.h
SVGLangSpace.h
SVGStyledTransformableElement.h
SVGTests.h
SVGURIReference.h
WebCore
Definition: CSSHelper.h:7
WebCore::Path
khtml::Path Path
Definition: PathTraversalState.h:37
X
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