1 /* 2 * Copyright (C) 2013 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef DisplayList_h 32 #define DisplayList_h 33 34 #include "platform/geometry/FloatRect.h" 35 36 #include "wtf/FastAllocBase.h" 37 #include "wtf/RefCounted.h" 38 #include "wtf/RefPtr.h" 39 40 class SkCanvas; 41 class SkPicture; 42 class SkPictureRecorder; 43 44 namespace WebCore { 45 46 class IntSize; 47 48 class PLATFORM_EXPORT DisplayList FINAL : public WTF::RefCounted<DisplayList> { 49 WTF_MAKE_FAST_ALLOCATED; 50 WTF_MAKE_NONCOPYABLE(DisplayList); 51 public: 52 DisplayList(const FloatRect&); 53 ~DisplayList(); 54 55 const FloatRect& bounds() const; 56 57 // This entry point will return 0 when the DisplayList is in the 58 // midst of recording (i.e., between a beginRecording/endRecording pair) 59 // and if no recording has ever been completed. Otherwise it will return 60 // the picture created by the last endRecording call. 61 SkPicture* picture() const; 62 63 SkCanvas* beginRecording(const IntSize&, uint32_t recordFlags = 0); isRecording()64 bool isRecording() const { return m_recorder; } 65 void endRecording(); 66 67 private: 68 FloatRect m_bounds; 69 RefPtr<SkPicture> m_picture; 70 OwnPtr<SkPictureRecorder> m_recorder; 71 }; 72 73 } 74 75 #endif // DisplayList_h 76