1/*
2 * Copyright (C) 2006 Apple Computer, Inc.
3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
4 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB.  If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#ifndef RenderSVGText_h
23#define RenderSVGText_h
24
25#if ENABLE(SVG)
26
27#include "AffineTransform.h"
28#include "RenderSVGBlock.h"
29#include "SVGTextLayoutAttributes.h"
30
31namespace WebCore {
32
33class SVGTextElement;
34
35class RenderSVGText : public RenderSVGBlock {
36public:
37    RenderSVGText(SVGTextElement*);
38
39    virtual bool isChildAllowed(RenderObject*, RenderStyle*) const;
40
41    void setNeedsPositioningValuesUpdate() { m_needsPositioningValuesUpdate = true; }
42    virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; }
43    virtual FloatRect repaintRectInLocalCoordinates() const;
44
45    static RenderSVGText* locateRenderSVGTextAncestor(RenderObject*);
46    static const RenderSVGText* locateRenderSVGTextAncestor(const RenderObject*);
47
48    Vector<SVGTextLayoutAttributes>& layoutAttributes() { return m_layoutAttributes; }
49    bool needsReordering() const { return m_needsReordering; }
50
51private:
52    virtual const char* renderName() const { return "RenderSVGText"; }
53    virtual bool isSVGText() const { return true; }
54
55    virtual void paint(PaintInfo&, int tx, int ty);
56    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
57    virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction);
58    virtual VisiblePosition positionForPoint(const IntPoint&);
59
60    virtual bool requiresLayer() const { return false; }
61    virtual void layout();
62
63    virtual void absoluteQuads(Vector<FloatQuad>&);
64
65    virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer);
66    virtual void computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect&, bool fixed = false);
67
68    virtual void mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool useTransforms, bool fixed, TransformState&) const;
69
70    virtual FloatRect objectBoundingBox() const { return frameRect(); }
71    virtual FloatRect strokeBoundingBox() const;
72
73    virtual const AffineTransform& localToParentTransform() const { return m_localTransform; }
74    virtual AffineTransform localTransform() const { return m_localTransform; }
75    virtual RootInlineBox* createRootInlineBox();
76
77    virtual RenderBlock* firstLineBlock() const;
78    virtual void updateFirstLetter();
79
80    bool m_needsReordering : 1;
81    bool m_needsPositioningValuesUpdate : 1;
82    bool m_needsTransformUpdate : 1;
83    AffineTransform m_localTransform;
84    Vector<SVGTextLayoutAttributes> m_layoutAttributes;
85};
86
87inline RenderSVGText* toRenderSVGText(RenderObject* object)
88{
89    ASSERT(!object || object->isSVGText());
90    return static_cast<RenderSVGText*>(object);
91}
92
93inline const RenderSVGText* toRenderSVGText(const RenderObject* object)
94{
95    ASSERT(!object || object->isSVGText());
96    return static_cast<const RenderSVGText*>(object);
97}
98
99// This will catch anyone doing an unnecessary cast.
100void toRenderSVGText(const RenderSVGText*);
101
102}
103
104#endif // ENABLE(SVG)
105#endif
106