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 32 namespace WebCore { 33 34 class LocalWindowsContext { 35 WTF_MAKE_NONCOPYABLE(LocalWindowsContext); 36 public: 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 53 private: 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
