1/*
2    Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3                  2004, 2005, 2007 Rob Buis <buis@kde.org>
4    Copyright (C) 2009 Google, Inc.  All rights reserved.
5    Copyright (C) 2009 Apple Inc. All rights reserved.
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    aint 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 RenderSVGRoot_h
24#define RenderSVGRoot_h
25
26#if ENABLE(SVG)
27#include "RenderBox.h"
28#include "FloatRect.h"
29#include "SVGRenderSupport.h"
30
31namespace WebCore {
32
33class SVGStyledElement;
34class AffineTransform;
35
36class RenderSVGRoot : public RenderBox, protected SVGRenderBase {
37public:
38    RenderSVGRoot(SVGStyledElement*);
39
40    const RenderObjectChildList* children() const { return &m_children; }
41    RenderObjectChildList* children() { return &m_children; }
42
43private:
44    virtual RenderObjectChildList* virtualChildren() { return children(); }
45    virtual const RenderObjectChildList* virtualChildren() const { return children(); }
46
47    virtual bool isSVGRoot() const { return true; }
48    virtual const char* renderName() const { return "RenderSVGRoot"; }
49
50    virtual int lineHeight(bool b, bool isRootLineBox = false) const;
51    virtual int baselinePosition(bool b, bool isRootLineBox = false) const;
52    virtual void calcPrefWidths();
53
54    virtual void layout();
55    virtual void paint(PaintInfo&, int parentX, int parentY);
56
57    virtual const AffineTransform& localToParentTransform() const;
58
59    bool fillContains(const FloatPoint&) const;
60    bool strokeContains(const FloatPoint&) const;
61
62    virtual FloatRect objectBoundingBox() const;
63    virtual FloatRect strokeBoundingBox() const { return computeContainerBoundingBox(this, true); }
64    virtual FloatRect repaintRectInLocalCoordinates() const;
65
66    // FIXME: This override should be removed.
67    virtual AffineTransform localTransform() const;
68
69    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
70
71    virtual void computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& repaintRect, bool fixed);
72
73    virtual void mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool useTransforms, bool fixed, TransformState&) const;
74
75    void calcViewport();
76
77    bool selfWillPaint() const;
78
79    IntSize parentOriginToBorderBox() const;
80    IntSize borderOriginToContentBox() const;
81    AffineTransform localToRepaintContainerTransform(const IntPoint& parentOriginInContainer) const;
82    AffineTransform localToBorderBoxTransform() const;
83
84    RenderObjectChildList m_children;
85    FloatSize m_viewportSize;
86    mutable AffineTransform m_localToParentTransform;
87};
88
89inline RenderSVGRoot* toRenderSVGRoot(RenderObject* object)
90{
91    ASSERT(!object || object->isSVGRoot());
92    return static_cast<RenderSVGRoot*>(object);
93}
94
95inline const RenderSVGRoot* toRenderSVGRoot(const RenderObject* object)
96{
97    ASSERT(!object || object->isSVGRoot());
98    return static_cast<const RenderSVGRoot*>(object);
99}
100
101// This will catch anyone doing an unnecessary cast.
102void toRenderSVGRoot(const RenderSVGRoot*);
103
104} // namespace WebCore
105
106#endif // ENABLE(SVG)
107#endif // RenderSVGRoot_h
108
109// vim:ts=4:noet
110