1 /* 2 * Copyright (C) 2010 Apple Inc. All rights reserved. 3 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 24 * THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef UpdateChunk_h 28 #define UpdateChunk_h 29 30 #include <QImage> 31 #include <WebCore/IntRect.h> 32 #include "SharedMemory.h" 33 34 namespace CoreIPC { 35 class ArgumentEncoder; 36 class ArgumentDecoder; 37 } 38 39 namespace WebKit { 40 41 class UpdateChunk { 42 public: 43 UpdateChunk(); 44 UpdateChunk(const WebCore::IntRect&); 45 ~UpdateChunk(); 46 rect()47 const WebCore::IntRect& rect() const { return m_rect; } isEmpty()48 bool isEmpty() const { return m_rect.isEmpty(); } 49 50 void encode(CoreIPC::ArgumentEncoder*) const; 51 static bool decode(CoreIPC::ArgumentDecoder*, UpdateChunk&); 52 53 QImage createImage() const; 54 55 private: 56 size_t size() const; 57 58 WebCore::IntRect m_rect; 59 60 mutable RefPtr<SharedMemory> m_sharedMemory; 61 }; 62 63 } // namespace WebKit 64 65 #endif // UpdateChunk_h 66