1/*
2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
4 * Copyright (C) 2009 Google, Inc.
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 * 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#pragma once
24
25#include "RenderSVGContainer.h"
26
27namespace WebCore {
28
29// This is used for non-root <svg> elements and <marker> elements, neither of which are SVGTransformable
30// thus we inherit from RenderSVGContainer instead of RenderSVGTransformableContainer
31class RenderSVGViewportContainer final : public RenderSVGContainer {
32 WTF_MAKE_ISO_ALLOCATED(RenderSVGViewportContainer);
33public:
34 RenderSVGViewportContainer(SVGSVGElement&, RenderStyle&&);
35
36 SVGSVGElement& svgSVGElement() const;
37
38 FloatRect viewport() const { return m_viewport; }
39
40 bool isLayoutSizeChanged() const { return m_isLayoutSizeChanged; }
41 bool didTransformToRootUpdate() override { return m_didTransformToRootUpdate; }
42
43 void determineIfLayoutSizeChanged() override;
44 void setNeedsTransformUpdate() override { m_needsTransformUpdate = true; }
45
46 void paint(PaintInfo&, const LayoutPoint&) override;
47
48private:
49 void element() const = delete;
50
51 bool isSVGViewportContainer() const override { return true; }
52 const char* renderName() const override { return "RenderSVGViewportContainer"; }
53
54 AffineTransform viewportTransform() const;
55 const AffineTransform& localToParentTransform() const override { return m_localToParentTransform; }
56
57 void calcViewport() override;
58 bool calculateLocalTransform() override;
59
60 void applyViewportClip(PaintInfo&) override;
61 bool pointIsInsideViewportClip(const FloatPoint& pointInParent) override;
62
63 bool m_didTransformToRootUpdate : 1;
64 bool m_isLayoutSizeChanged : 1;
65 bool m_needsTransformUpdate : 1;
66
67 FloatRect m_viewport;
68 mutable AffineTransform m_localToParentTransform;
69};
70
71} // namespace WebCore
72
73SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderSVGViewportContainer, isSVGViewportContainer())
74