1/*
2 * Copyright (C) 2010 Apple 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 COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef LocalWindowsContext_h
27#define LocalWindowsContext_h
28
29#include "config.h"
30#include "GraphicsContext.h"
31
32namespace WebCore {
33
34class LocalWindowsContext {
35    WTF_MAKE_NONCOPYABLE(LocalWindowsContext);
36public:
37    LocalWindowsContext(GraphicsContext* graphicsContext, const IntRect& rect, bool supportAlphaBlend = true, bool mayCreateBitmap = true)
38        : m_graphicsContext(graphicsContext)
39        , m_rect(rect)
40        , m_supportAlphaBlend(supportAlphaBlend)
41        , m_mayCreateBitmap(mayCreateBitmap)
42    {
43        m_hdc = m_graphicsContext->getWindowsContext(m_rect, m_supportAlphaBlend, m_mayCreateBitmap);
44    }
45
46    ~LocalWindowsContext()
47    {
48        m_graphicsContext->releaseWindowsContext(m_hdc, m_rect, m_supportAlphaBlend, m_mayCreateBitmap);
49    }
50
51    HDC hdc() const { return m_hdc; }
52
53private:
54    GraphicsContext* m_graphicsContext;
55    HDC m_hdc;
56    IntRect m_rect;
57    bool m_supportAlphaBlend;
58    bool m_mayCreateBitmap;
59};
60
61} // namespace WebCore
62#endif // LocalWindowsContext_h
63