1/*
2 * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
3 * Copyright (C) 2006, 2009 Apple Inc. All rights reserved.
4 * Copyright (C) 2007 Rob Buis <buis@kde.org>
5 * Copyright (C) 2009 Google, Inc.
6 * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB.  If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 */
23
24#ifndef RenderSVGImage_h
25#define RenderSVGImage_h
26
27#include "AffineTransform.h"
28#include "FloatRect.h"
29#include "RenderSVGModelObject.h"
30#include "SVGPreserveAspectRatio.h"
31
32namespace WebCore {
33
34class RenderImageResource;
35class SVGImageElement;
36
37class RenderSVGImage final : public RenderSVGModelObject {
38public:
39    RenderSVGImage(SVGImageElement&, PassRef<RenderStyle>);
40    virtual ~RenderSVGImage();
41
42    SVGImageElement& imageElement() const;
43
44    bool updateImageViewport();
45    virtual void setNeedsBoundariesUpdate() { m_needsBoundariesUpdate = true; }
46    virtual bool needsBoundariesUpdate() override { return m_needsBoundariesUpdate; }
47    virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; }
48
49    RenderImageResource& imageResource() { return *m_imageResource; }
50    const RenderImageResource& imageResource() const { return *m_imageResource; }
51
52    // Note: Assumes the PaintInfo context has had all local transforms applied.
53    void paintForeground(PaintInfo&);
54
55private:
56    void element() const = delete;
57
58    virtual const char* renderName() const { return "RenderSVGImage"; }
59    virtual bool isSVGImage() const override { return true; }
60    virtual bool canHaveChildren() const override { return false; }
61
62    virtual const AffineTransform& localToParentTransform() const { return m_localTransform; }
63
64    virtual FloatRect objectBoundingBox() const { return m_objectBoundingBox; }
65    virtual FloatRect strokeBoundingBox() const { return m_objectBoundingBox; }
66    virtual FloatRect repaintRectInLocalCoordinates() const { return m_repaintBoundingBox; }
67    virtual FloatRect repaintRectInLocalCoordinatesExcludingSVGShadow() const override { return m_repaintBoundingBoxExcludingShadow; }
68
69    virtual void addFocusRingRects(Vector<IntRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) override;
70
71    virtual void imageChanged(WrappedImagePtr, const IntRect* = 0);
72
73    virtual void layout();
74    virtual void paint(PaintInfo&, const LayoutPoint&);
75
76    void invalidateBufferedForeground();
77
78    virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction);
79
80    virtual AffineTransform localTransform() const { return m_localTransform; }
81    void calculateImageViewport();
82
83    bool m_needsBoundariesUpdate : 1;
84    bool m_needsTransformUpdate : 1;
85    AffineTransform m_localTransform;
86    FloatRect m_objectBoundingBox;
87    FloatRect m_repaintBoundingBox;
88    FloatRect m_repaintBoundingBoxExcludingShadow;
89    std::unique_ptr<RenderImageResource> m_imageResource;
90    std::unique_ptr<ImageBuffer> m_bufferedForeground;
91};
92
93RENDER_OBJECT_TYPE_CASTS(RenderSVGImage, isSVGImage())
94
95} // namespace WebCore
96
97#endif // RenderSVGImage_h
98