1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef SVGImageForContainer_h
27#define SVGImageForContainer_h
28
29#if ENABLE(SVG)
30
31#include "AffineTransform.h"
32#include "FloatRect.h"
33#include "FloatSize.h"
34#include "Image.h"
35#include "SVGImage.h"
36
37namespace WebCore {
38
39class SVGImageForContainer : public Image {
40public:
41    static PassRefPtr<SVGImageForContainer> create(SVGImage* image, const FloatSize& containerSize, float zoom)
42    {
43        return adoptRef(new SVGImageForContainer(image, containerSize, zoom));
44    }
45
46    virtual bool isSVGImage() const OVERRIDE { return true; }
47
48    virtual IntSize size() const OVERRIDE;
49
50    virtual bool usesContainerSize() const OVERRIDE { return m_image->usesContainerSize(); }
51    virtual bool hasRelativeWidth() const OVERRIDE { return m_image->hasRelativeWidth(); }
52    virtual bool hasRelativeHeight() const OVERRIDE { return m_image->hasRelativeHeight(); }
53    virtual void computeIntrinsicDimensions(Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) OVERRIDE
54    {
55        m_image->computeIntrinsicDimensions(intrinsicWidth, intrinsicHeight, intrinsicRatio);
56    }
57
58    virtual void draw(GraphicsContext*, const FloatRect&, const FloatRect&, ColorSpace, CompositeOperator, BlendMode) OVERRIDE;
59
60    virtual void drawPattern(GraphicsContext*, const FloatRect&, const AffineTransform&, const FloatPoint&, ColorSpace, CompositeOperator, const FloatRect&, BlendMode) OVERRIDE;
61
62    // FIXME: Implement this to be less conservative.
63    virtual bool currentFrameKnownToBeOpaque() OVERRIDE { return false; }
64
65    virtual PassNativeImagePtr nativeImageForCurrentFrame() OVERRIDE;
66
67private:
68    SVGImageForContainer(SVGImage* image, const FloatSize& containerSize, float zoom)
69        : m_image(image)
70        , m_containerSize(containerSize)
71        , m_zoom(zoom)
72    {
73    }
74
75    virtual void destroyDecodedData(bool /*destroyAll*/ = true) { }
76    virtual unsigned decodedSize() const { return 0; }
77
78    SVGImage* m_image;
79    const FloatSize m_containerSize;
80    const float m_zoom;
81};
82}
83
84#endif // ENABLE(SVG)
85#endif // SVGImageForContainer_h
86