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Side by Side Diff: Source/core/platform/graphics/OpaqueRectTrackingContentLayerDelegate.h

Issue 99103006: Moving GraphicsContext and dependencies from core to platform. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Final patch - fixes Android Created 7 years ago
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1 /*
2 * Copyright (C) 2012 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. AND ITS CONTRIBUTORS ``AS IS'' AND AN Y
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN Y
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O N
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25 #ifndef OpaqueRectTrackingContentLayerDelegate_h
26 #define OpaqueRectTrackingContentLayerDelegate_h
27
28 #include "public/platform/WebContentLayerClient.h"
29 #include "wtf/Noncopyable.h"
30 #include "wtf/PassOwnPtr.h"
31
32 class SkCanvas;
33
34 namespace WebCore {
35
36 class GraphicsContext;
37 class IntRect;
38
39 class GraphicsContextPainter {
40 public:
41 virtual void paint(GraphicsContext&, const IntRect& clip) = 0;
42
43 protected:
44 virtual ~GraphicsContextPainter() { }
45 };
46
47 class OpaqueRectTrackingContentLayerDelegate : public blink::WebContentLayerClie nt {
48 WTF_MAKE_NONCOPYABLE(OpaqueRectTrackingContentLayerDelegate);
49 public:
50 explicit OpaqueRectTrackingContentLayerDelegate(GraphicsContextPainter*);
51 virtual ~OpaqueRectTrackingContentLayerDelegate();
52
53 // If we know that everything that will be painted through this delegate, th en we don't bother
54 // tracking opaqueness.
55 void setOpaque(bool opaque) { m_opaque = opaque; }
56
57 // blink::WebContentLayerClient implementation.
58 virtual void paintContents(SkCanvas*, const blink::WebRect& clip, bool canPa intLCDText, blink::WebFloatRect& opaque) OVERRIDE;
59
60 private:
61 GraphicsContextPainter* m_painter;
62 bool m_opaque;
63 };
64
65 }
66
67 #endif // OpaqueRectTrackingContentLayerDelegate_h
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