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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 ANY
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 ANY
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 ON
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 #include "config.h"
26 
27 #include "platform/graphics/ContentLayerDelegate.h"
28 
29 #include "platform/EventTracer.h"
30 #include "platform/geometry/IntRect.h"
31 #include "platform/graphics/GraphicsContext.h"
32 #include "platform/transforms/AffineTransform.h"
33 #include "public/platform/WebFloatRect.h"
34 #include "public/platform/WebRect.h"
35 
36 namespace blink {
37 
ContentLayerDelegate(GraphicsContextPainter * painter)38 ContentLayerDelegate::ContentLayerDelegate(GraphicsContextPainter* painter)
39     : m_painter(painter)
40     , m_opaque(false)
41 {
42 }
43 
~ContentLayerDelegate()44 ContentLayerDelegate::~ContentLayerDelegate()
45 {
46 }
47 
paintContents(SkCanvas * canvas,const WebRect & clip,bool canPaintLCDText,WebContentLayerClient::GraphicsContextStatus contextStatus)48 void ContentLayerDelegate::paintContents(
49     SkCanvas* canvas, const WebRect& clip, bool canPaintLCDText,
50     WebContentLayerClient::GraphicsContextStatus contextStatus)
51 {
52     static const unsigned char* annotationsEnabled = 0;
53     if (UNLIKELY(!annotationsEnabled))
54         annotationsEnabled = EventTracer::getTraceCategoryEnabledFlag(TRACE_DISABLED_BY_DEFAULT("blink.graphics_context_annotations"));
55 
56     GraphicsContext context(canvas, contextStatus == WebContentLayerClient::GraphicsContextEnabled ? GraphicsContext::NothingDisabled : GraphicsContext::FullyDisabled);
57     context.setCertainlyOpaque(m_opaque);
58     context.setShouldSmoothFonts(canPaintLCDText);
59     if (*annotationsEnabled)
60         context.setAnnotationMode(AnnotateAll);
61 
62     m_painter->paint(context, clip);
63 }
64 
65 } // namespace blink
66