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1 /* | 1 /* |
2 * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved. |
3 * Copyright (C) 2013 Intel Corporation. All rights reserved. | 3 * Copyright (C) 2013 Intel Corporation. All rights reserved. |
4 * | 4 * |
5 * Portions are Copyright (C) 1998 Netscape Communications Corporation. | 5 * Portions are Copyright (C) 1998 Netscape Communications Corporation. |
6 * | 6 * |
7 * Other contributors: | 7 * Other contributors: |
8 * Robert O'Callahan <roc+@cs.cmu.edu> | 8 * Robert O'Callahan <roc+@cs.cmu.edu> |
9 * David Baron <dbaron@fas.harvard.edu> | 9 * David Baron <dbaron@fas.harvard.edu> |
10 * Christian Biesinger <cbiesinger@web.de> | 10 * Christian Biesinger <cbiesinger@web.de> |
11 * Randall Jesup <rjesup@wgate.com> | 11 * Randall Jesup <rjesup@wgate.com> |
12 * Roland Mainz <roland.mainz@informatik.med.uni-giessen.de> | 12 * Roland Mainz <roland.mainz@informatik.med.uni-giessen.de> |
13 * Josh Soref <timeless@mac.com> | 13 * Josh Soref <timeless@mac.com> |
14 * Boris Zbarsky <bzbarsky@mit.edu> | 14 * Boris Zbarsky <bzbarsky@mit.edu> |
15 * | 15 * |
16 * This library is free software; you can redistribute it and/or | 16 * This library is free software; you can redistribute it and/or |
17 * modify it under the terms of the GNU Lesser General Public | 17 * modify it under the terms of the GNU Lesser General Public |
18 * License as published by the Free Software Foundation; either | 18 * License as published by the Free Software Foundation; either |
19 * version 2.1 of the License, or (at your option) any later version. | 19 * version 2.1 of the License, or (at your option) any later version. |
20 * | 20 * |
21 * This library is distributed in the hope that it will be useful, | 21 * This library is distributed in the hope that it will be useful, |
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 22 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
24 * Lesser General Public License for more details. | 24 * Lesser General Public License for more details. |
25 * | 25 * |
26 * You should have received a copy of the GNU Lesser General Public | 26 * You should have received a copy of the GNU Lesser General Public |
27 * License along with this library; if not, write to the Free Software | 27 * License along with this library; if not, write to the Free Software |
28 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 US
A | 28 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA |
29 * | 29 * |
30 * Alternatively, the contents of this file may be used under the terms | 30 * Alternatively, the contents of this file may be used under the terms |
31 * of either the Mozilla Public License Version 1.1, found at | 31 * of either the Mozilla Public License Version 1.1, found at |
32 * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public | 32 * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public |
33 * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html | 33 * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html |
34 * (the "GPL"), in which case the provisions of the MPL or the GPL are | 34 * (the "GPL"), in which case the provisions of the MPL or the GPL are |
35 * applicable instead of those above. If you wish to allow use of your | 35 * applicable instead of those above. If you wish to allow use of your |
36 * version of this file only under the terms of one of those two | 36 * version of this file only under the terms of one of those two |
37 * licenses (the MPL or the GPL) and not to allow others to use your | 37 * licenses (the MPL or the GPL) and not to allow others to use your |
38 * version of this file under the LGPL, indicate your decision by | 38 * version of this file under the LGPL, indicate your decision by |
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148 // a layout tree walk and cache them for painting. | 148 // a layout tree walk and cache them for painting. |
149 class CORE_EXPORT PaintLayerClipper { | 149 class CORE_EXPORT PaintLayerClipper { |
150 DISALLOW_NEW(); | 150 DISALLOW_NEW(); |
151 | 151 |
152 public: | 152 public: |
153 explicit PaintLayerClipper(const PaintLayer& layer) : m_layer(layer) {} | 153 explicit PaintLayerClipper(const PaintLayer& layer) : m_layer(layer) {} |
154 | 154 |
155 void clearClipRectsIncludingDescendants(); | 155 void clearClipRectsIncludingDescendants(); |
156 void clearClipRectsIncludingDescendants(ClipRectsCacheSlot); | 156 void clearClipRectsIncludingDescendants(ClipRectsCacheSlot); |
157 | 157 |
158 // Returns the background clip rect of the layer in the local coordinate space
. Only looks for clips up to the given ancestor. | 158 // Returns the background clip rect of the layer in the local coordinate |
| 159 // space. Only looks for clips up to the given ancestor. |
159 LayoutRect localClipRect(const PaintLayer* ancestorLayer) const; | 160 LayoutRect localClipRect(const PaintLayer* ancestorLayer) const; |
160 | 161 |
161 ClipRect backgroundClipRect(const ClipRectsContext&) const; | 162 ClipRect backgroundClipRect(const ClipRectsContext&) const; |
162 | 163 |
163 // This method figures out our layerBounds in coordinates relative to | 164 // This method figures out our layerBounds in coordinates relative to |
164 // |rootLayer|. It also computes our background and foreground clip rects | 165 // |rootLayer|. It also computes our background and foreground clip rects |
165 // for painting/event handling. | 166 // for painting/event handling. |
166 // Pass offsetFromRoot if known. | 167 // Pass offsetFromRoot if known. |
167 void calculateRects(const ClipRectsContext&, | 168 void calculateRects(const ClipRectsContext&, |
168 const LayoutRect& paintDirtyRect, | 169 const LayoutRect& paintDirtyRect, |
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187 void getOrCalculateClipRects(const ClipRectsContext&, ClipRects&) const; | 188 void getOrCalculateClipRects(const ClipRectsContext&, ClipRects&) const; |
188 | 189 |
189 bool shouldRespectOverflowClip(const ClipRectsContext&) const; | 190 bool shouldRespectOverflowClip(const ClipRectsContext&) const; |
190 | 191 |
191 const PaintLayer& m_layer; | 192 const PaintLayer& m_layer; |
192 }; | 193 }; |
193 | 194 |
194 } // namespace blink | 195 } // namespace blink |
195 | 196 |
196 #endif // LayerClipper_h | 197 #endif // LayerClipper_h |
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