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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PATTERN_H_
30 #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PATTERN_H_
31 
32 #include "base/macros.h"
33 #include "base/memory/scoped_refptr.h"
34 #include "third_party/blink/renderer/platform/graphics/image.h"
35 #include "third_party/blink/renderer/platform/graphics/paint/paint_record.h"
36 #include "third_party/blink/renderer/platform/graphics/paint/paint_shader.h"
37 #include "third_party/blink/renderer/platform/platform_export.h"
38 #include "third_party/blink/renderer/platform/wtf/ref_counted.h"
39 #include "third_party/skia/include/core/SkRefCnt.h"
40 
41 class SkMatrix;
42 
43 namespace blink {
44 
45 class PLATFORM_EXPORT Pattern : public RefCounted<Pattern> {
46  public:
47   enum RepeatMode {
48     kRepeatModeX = 1 << 0,
49     kRepeatModeY = 1 << 1,
50 
51     kRepeatModeNone = 0,
52     kRepeatModeXY = kRepeatModeX | kRepeatModeY
53   };
54 
55   static scoped_refptr<Pattern> CreateImagePattern(scoped_refptr<Image>,
56                                                    RepeatMode = kRepeatModeXY);
57   static scoped_refptr<Pattern> CreatePaintRecordPattern(
58       sk_sp<PaintRecord>,
59       const FloatRect& record_bounds,
60       RepeatMode = kRepeatModeXY);
61   virtual ~Pattern();
62 
63   void ApplyToFlags(cc::PaintFlags&, const SkMatrix&);
64 
IsRepeatX()65   bool IsRepeatX() const { return repeat_mode_ & kRepeatModeX; }
IsRepeatY()66   bool IsRepeatY() const { return repeat_mode_ & kRepeatModeY; }
IsRepeatXY()67   bool IsRepeatXY() const { return repeat_mode_ == kRepeatModeXY; }
68 
IsTextureBacked()69   virtual bool IsTextureBacked() const { return false; }
70 
71  protected:
72   virtual sk_sp<PaintShader> CreateShader(const SkMatrix&) = 0;
73 
74   RepeatMode repeat_mode_;
75 
76   Pattern(RepeatMode);
77   mutable sk_sp<PaintShader> cached_shader_;
78 
79  private:
80   DISALLOW_COPY_AND_ASSIGN(Pattern);
81 };
82 
83 }  // namespace blink
84 
85 #endif
86