1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 * Copyright (C) 2013 Samsung Electronics. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 *     * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *     * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 *     * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef GraphicsContextAnnotator_h
33#define GraphicsContextAnnotator_h
34
35#define ANNOTATE_GRAPHICS_CONTEXT(paintInfo, renderer) \
36    GraphicsContextAnnotator scopedGraphicsContextAnnotator; \
37    if (UNLIKELY(paintInfo.context->annotationMode())) \
38        scopedGraphicsContextAnnotator.annotate(paintInfo, renderer)
39
40namespace blink {
41
42class GraphicsContext;
43struct PaintInfo;
44class RenderObject;
45
46class GraphicsContextAnnotator {
47public:
48    GraphicsContextAnnotator()
49        : m_context(0)
50    { }
51
52    ~GraphicsContextAnnotator()
53    {
54        if (UNLIKELY(m_context != 0))
55            finishAnnotation();
56    }
57
58    void annotate(const PaintInfo&, const RenderObject*);
59
60private:
61    void finishAnnotation();
62
63    GraphicsContext* m_context;
64};
65
66} // namespace blink
67
68#endif // GraphicsContextAnnotator_h
69