1/*
2 * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc.  All rights reserved.
3 * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
4 * Copyright (C) 2007-2008 Torch Mobile, Inc.
5 * Copyright (C) 2013 Google, Inc. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
24 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef Pattern_h
30#define Pattern_h
31
32#include "SkShader.h"
33#include "platform/PlatformExport.h"
34#include "platform/graphics/Image.h"
35#include "platform/transforms/AffineTransform.h"
36
37#include "wtf/PassRefPtr.h"
38#include "wtf/RefCounted.h"
39#include "wtf/RefPtr.h"
40
41namespace blink {
42
43class PLATFORM_EXPORT Pattern : public RefCounted<Pattern> {
44public:
45    enum RepeatMode {
46        RepeatModeX    = 1 << 0,
47        RepeatModeY    = 1 << 1,
48
49        RepeatModeNone = 0,
50        RepeatModeXY   = RepeatModeX | RepeatModeY
51    };
52
53    static PassRefPtr<Pattern> createBitmapPattern(PassRefPtr<Image> tileImage,
54        RepeatMode = RepeatModeXY);
55    ~Pattern();
56
57    SkShader* shader();
58
59    void setPatternSpaceTransform(const AffineTransform& patternSpaceTransformation);
60
61private:
62    Pattern(PassRefPtr<Image>, RepeatMode);
63
64    RefPtr<NativeImageSkia> m_tileImage;
65    RepeatMode m_repeatMode;
66    AffineTransform m_patternSpaceTransformation;
67    RefPtr<SkShader> m_pattern;
68    int m_externalMemoryAllocated;
69};
70
71} // namespace blink
72
73#endif
74