1 /* 2 * Copyright (C) 2003, 2009, 2012 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 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 LayerFragment_h 27 #define LayerFragment_h 28 29 #include "core/rendering/ClipRect.h" 30 #include "wtf/Vector.h" 31 32 namespace blink { 33 34 struct LayerFragment { 35 public: 36 LayerFragment() 37 : shouldPaintContent(false) 38 { 39 } 40 41 void setRects(const LayoutRect& bounds, const ClipRect& background, const ClipRect& foreground, const ClipRect& outline) 42 { 43 layerBounds = bounds; 44 backgroundRect = background; 45 foregroundRect = foreground; 46 outlineRect = outline; 47 } 48 49 void moveBy(const LayoutPoint& offset) 50 { 51 layerBounds.moveBy(offset); 52 backgroundRect.moveBy(offset); 53 foregroundRect.moveBy(offset); 54 outlineRect.moveBy(offset); 55 paginationClip.moveBy(offset); 56 } 57 58 void intersect(const LayoutRect& rect) 59 { 60 backgroundRect.intersect(rect); 61 foregroundRect.intersect(rect); 62 outlineRect.intersect(rect); 63 } 64 65 bool shouldPaintContent; 66 LayoutRect layerBounds; 67 ClipRect backgroundRect; 68 ClipRect foregroundRect; 69 ClipRect outlineRect; 70 71 // Unique to paginated fragments. The physical translation to apply to shift the layer when painting/hit-testing. 72 LayoutPoint paginationOffset; 73 74 // Also unique to paginated fragments. An additional clip that applies to the layer. It is in layer-local 75 // (physical) coordinates. 76 LayoutRect paginationClip; 77 }; 78 79 typedef Vector<LayerFragment, 1> LayerFragments; 80 81 } // namespace blink 82 83 #endif // LayerFragment_h 84