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#ifndef RenderSVGViewportContainer_h
24#define RenderSVGViewportContainer_h
25
26#include "core/rendering/svg/RenderSVGContainer.h"
27
28namespace WebCore {
29
30// This is used for non-root <svg> elements and <marker> elements, neither of which are SVGTransformable
31// thus we inherit from RenderSVGContainer instead of RenderSVGTransformableContainer
32class RenderSVGViewportContainer FINAL : public RenderSVGContainer {
33public:
34    explicit RenderSVGViewportContainer(SVGElement*);
35    FloatRect viewport() const { return m_viewport; }
36
37    bool isLayoutSizeChanged() const { return m_isLayoutSizeChanged; }
38    virtual bool didTransformToRootUpdate() OVERRIDE { return m_didTransformToRootUpdate; }
39
40    virtual void determineIfLayoutSizeChanged() OVERRIDE;
41    virtual void setNeedsTransformUpdate() OVERRIDE { m_needsTransformUpdate = true; }
42
43    virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE;
44
45private:
46    virtual bool isSVGViewportContainer() const OVERRIDE { return true; }
47    virtual const char* renderName() const OVERRIDE { return "RenderSVGViewportContainer"; }
48
49    AffineTransform viewportTransform() const;
50    virtual const AffineTransform& localToParentTransform() const OVERRIDE { return m_localToParentTransform; }
51
52    virtual void calcViewport() OVERRIDE;
53    virtual bool calculateLocalTransform() OVERRIDE;
54
55    virtual void applyViewportClip(PaintInfo&) OVERRIDE;
56    virtual bool pointIsInsideViewportClip(const FloatPoint& pointInParent) OVERRIDE;
57
58    FloatRect m_viewport;
59    mutable AffineTransform m_localToParentTransform;
60    bool m_didTransformToRootUpdate : 1;
61    bool m_isLayoutSizeChanged : 1;
62    bool m_needsTransformUpdate : 1;
63};
64
65DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderSVGViewportContainer, isSVGViewportContainer());
66
67} // namespace WebCore
68
69#endif // RenderSVGViewportContainer_h
70