1/*
2 * Copyright (C) 2008, 2013 Apple 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#pragma once
27
28#include "FloatSize.h"
29#include "Image.h"
30
31namespace WebCore {
32
33class GeneratedImage : public Image {
34public:
35 bool hasSingleSecurityOrigin() const override { return true; }
36
37 void setContainerSize(const FloatSize& size) override { m_size = size; }
38 bool usesContainerSize() const override { return true; }
39 bool hasRelativeWidth() const override { return true; }
40 bool hasRelativeHeight() const override { return true; }
41 void computeIntrinsicDimensions(Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) override;
42
43 FloatSize size() const override { return m_size; }
44
45 // Assume that generated content has no decoded data we need to worry about
46 void destroyDecodedData(bool /*destroyAll*/ = true) override { }
47
48protected:
49 ImageDrawResult draw(GraphicsContext&, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator, BlendMode, DecodingMode, ImageOrientationDescription) override = 0;
50 void drawPattern(GraphicsContext&, const FloatRect& destRect, const FloatRect& srcRect, const AffineTransform& patternTransform,
51 const FloatPoint& phase, const FloatSize& spacing, CompositeOperator, BlendMode) override = 0;
52
53 // FIXME: Implement this to be less conservative.
54 bool currentFrameKnownToBeOpaque() const override { return false; }
55
56 GeneratedImage() { }
57
58private:
59 bool isGeneratedImage() const override { return true; }
60
61 FloatSize m_size;
62};
63
64}
65
66SPECIALIZE_TYPE_TRAITS_IMAGE(GeneratedImage)
67