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| 1 /* | 1 /* |
| 2 * Copyright (C) 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2012 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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| 43 | 43 |
| 44 // Can be used while walking the Renderer tree to cache data about offsets and t
ransforms. | 44 // Can be used while walking the Renderer tree to cache data about offsets and t
ransforms. |
| 45 class RenderGeometryMap { | 45 class RenderGeometryMap { |
| 46 WTF_MAKE_NONCOPYABLE(RenderGeometryMap); | 46 WTF_MAKE_NONCOPYABLE(RenderGeometryMap); |
| 47 public: | 47 public: |
| 48 RenderGeometryMap(MapCoordinatesFlags = UseTransforms); | 48 RenderGeometryMap(MapCoordinatesFlags = UseTransforms); |
| 49 ~RenderGeometryMap(); | 49 ~RenderGeometryMap(); |
| 50 | 50 |
| 51 MapCoordinatesFlags mapCoordinatesFlags() const { return m_mapCoordinatesFla
gs; } | 51 MapCoordinatesFlags mapCoordinatesFlags() const { return m_mapCoordinatesFla
gs; } |
| 52 | 52 |
| 53 FloatPoint absolutePoint(const FloatPoint& p) const | |
| 54 { | |
| 55 return mapToContainer(p, 0); | |
| 56 } | |
| 57 | |
| 58 FloatRect absoluteRect(const FloatRect& rect) const | 53 FloatRect absoluteRect(const FloatRect& rect) const |
| 59 { | 54 { |
| 60 return mapToContainer(rect, 0).boundingBox(); | 55 return mapToContainer(rect, 0).boundingBox(); |
| 61 } | 56 } |
| 62 | 57 |
| 63 // Map to a container. Will assert that the container has been pushed onto t
his map. | 58 // Map to a container. Will assert that the container has been pushed onto t
his map. |
| 64 // A null container maps through the RenderView (including its scale transfo
rm, if any). | 59 // A null container maps through the RenderView (including its scale transfo
rm, if any). |
| 65 // If the container is the RenderView, the scroll offset is applied, but not
the scale. | 60 // If the container is the RenderView, the scroll offset is applied, but not
the scale. |
| 66 FloatPoint mapToContainer(const FloatPoint&, const RenderLayerModelObject*)
const; | 61 FloatPoint mapToContainer(const FloatPoint&, const RenderLayerModelObject*)
const; |
| 67 FloatQuad mapToContainer(const FloatRect&, const RenderLayerModelObject*) co
nst; | 62 FloatQuad mapToContainer(const FloatRect&, const RenderLayerModelObject*) co
nst; |
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| 104 int m_transformedStepsCount; | 99 int m_transformedStepsCount; |
| 105 int m_fixedStepsCount; | 100 int m_fixedStepsCount; |
| 106 RenderGeometryMapSteps m_mapping; | 101 RenderGeometryMapSteps m_mapping; |
| 107 LayoutSize m_accumulatedOffset; | 102 LayoutSize m_accumulatedOffset; |
| 108 MapCoordinatesFlags m_mapCoordinatesFlags; | 103 MapCoordinatesFlags m_mapCoordinatesFlags; |
| 109 }; | 104 }; |
| 110 | 105 |
| 111 } // namespace blink | 106 } // namespace blink |
| 112 | 107 |
| 113 #endif // RenderGeometryMap_h | 108 #endif // RenderGeometryMap_h |
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