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1 /* | |
2 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights
reserved. | |
3 * | |
4 * Portions are Copyright (C) 1998 Netscape Communications Corporation. | |
5 * | |
6 * Other contributors: | |
7 * Robert O'Callahan <roc+@cs.cmu.edu> | |
8 * David Baron <dbaron@fas.harvard.edu> | |
9 * Christian Biesinger <cbiesinger@web.de> | |
10 * Randall Jesup <rjesup@wgate.com> | |
11 * Roland Mainz <roland.mainz@informatik.med.uni-giessen.de> | |
12 * Josh Soref <timeless@mac.com> | |
13 * Boris Zbarsky <bzbarsky@mit.edu> | |
14 * | |
15 * This library is free software; you can redistribute it and/or | |
16 * modify it under the terms of the GNU Lesser General Public | |
17 * License as published by the Free Software Foundation; either | |
18 * version 2.1 of the License, or (at your option) any later version. | |
19 * | |
20 * This library is distributed in the hope that it will be useful, | |
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
23 * Lesser General Public License for more details. | |
24 * | |
25 * You should have received a copy of the GNU Lesser General Public | |
26 * License along with this library; if not, write to the Free Software | |
27 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 US
A | |
28 * | |
29 * Alternatively, the contents of this file may be used under the terms | |
30 * of either the Mozilla Public License Version 1.1, found at | |
31 * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public | |
32 * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html | |
33 * (the "GPL"), in which case the provisions of the MPL or the GPL are | |
34 * applicable instead of those above. If you wish to allow use of your | |
35 * version of this file only under the terms of one of those two | |
36 * licenses (the MPL or the GPL) and not to allow others to use your | |
37 * version of this file under the LGPL, indicate your decision by | |
38 * deletingthe provisions above and replace them with the notice and | |
39 * other provisions required by the MPL or the GPL, as the case may be. | |
40 * If you do not delete the provisions above, a recipient may use your | |
41 * version of this file under any of the LGPL, the MPL or the GPL. | |
42 */ | |
43 | |
44 #include "config.h" | |
45 #include "core/rendering/RenderLayerReflectionInfo.h" | |
46 | |
47 #include "core/frame/UseCounter.h" | |
48 #include "core/paint/LayerPainter.h" | |
49 #include "core/rendering/RenderLayer.h" | |
50 #include "core/rendering/RenderReplica.h" | |
51 #include "core/rendering/style/RenderStyle.h" | |
52 #include "platform/transforms/ScaleTransformOperation.h" | |
53 #include "platform/transforms/TranslateTransformOperation.h" | |
54 | |
55 #include "wtf/RefPtr.h" | |
56 | |
57 namespace blink { | |
58 | |
59 RenderLayerReflectionInfo::RenderLayerReflectionInfo(RenderBox& renderer) | |
60 : m_box(&renderer) | |
61 , m_isPaintingInsideReflection(false) | |
62 { | |
63 UseCounter::count(box().document(), UseCounter::Reflection); | |
64 | |
65 m_reflection = RenderReplica::createAnonymous(&box().document()); | |
66 m_reflection->setParent(m_box); // We create a 1-way connection. | |
67 } | |
68 | |
69 void RenderLayerReflectionInfo::destroy() | |
70 { | |
71 if (!m_reflection->documentBeingDestroyed()) | |
72 m_reflection->removeLayers(box().layer()); | |
73 | |
74 m_reflection->setParent(0); | |
75 m_reflection->destroy(); | |
76 m_reflection = nullptr; | |
77 } | |
78 | |
79 RenderLayer* RenderLayerReflectionInfo::reflectionLayer() const | |
80 { | |
81 return m_reflection->layer(); | |
82 } | |
83 | |
84 void RenderLayerReflectionInfo::updateAfterStyleChange(const RenderStyle* oldSty
le) | |
85 { | |
86 RefPtr<RenderStyle> newStyle = RenderStyle::create(); | |
87 newStyle->inheritFrom(box().style()); | |
88 | |
89 // Map in our transform. | |
90 TransformOperations transform; | |
91 switch (box().style()->boxReflect()->direction()) { | |
92 case ReflectionBelow: | |
93 transform.operations().append(TranslateTransformOperation::create(Length
(0, Fixed), | |
94 Length(100., Percent), TransformOperation::Translate)); | |
95 transform.operations().append(TranslateTransformOperation::create(Length
(0, Fixed), | |
96 box().style()->boxReflect()->offset(), TransformOperation::Translate
)); | |
97 transform.operations().append(ScaleTransformOperation::create(1.0, -1.0,
ScaleTransformOperation::Scale)); | |
98 break; | |
99 | |
100 case ReflectionAbove: | |
101 transform.operations().append(ScaleTransformOperation::create(1.0, -1.0,
ScaleTransformOperation::Scale)); | |
102 transform.operations().append(TranslateTransformOperation::create(Length
(0, Fixed), | |
103 Length(100., Percent), TransformOperation::Translate)); | |
104 transform.operations().append(TranslateTransformOperation::create(Length
(0, Fixed), | |
105 box().style()->boxReflect()->offset(), TransformOperation::Translate
)); | |
106 break; | |
107 | |
108 case ReflectionRight: | |
109 transform.operations().append(TranslateTransformOperation::create(Length
(100., Percent), | |
110 Length(0, Fixed), TransformOperation::Translate)); | |
111 transform.operations().append(TranslateTransformOperation::create( | |
112 box().style()->boxReflect()->offset(), Length(0, Fixed), TransformOp
eration::Translate)); | |
113 transform.operations().append(ScaleTransformOperation::create(-1.0, 1.0,
ScaleTransformOperation::Scale)); | |
114 break; | |
115 | |
116 case ReflectionLeft: | |
117 transform.operations().append(ScaleTransformOperation::create(-1.0, 1.0,
ScaleTransformOperation::Scale)); | |
118 transform.operations().append(TranslateTransformOperation::create(Length
(100., Percent), | |
119 Length(0, Fixed), TransformOperation::Translate)); | |
120 transform.operations().append(TranslateTransformOperation::create( | |
121 box().style()->boxReflect()->offset(), Length(0, Fixed), TransformOp
eration::Translate)); | |
122 break; | |
123 } | |
124 newStyle->setTransform(transform); | |
125 | |
126 // Map in our mask. | |
127 newStyle->setMaskBoxImage(box().style()->boxReflect()->mask()); | |
128 | |
129 m_reflection->setStyle(newStyle.release()); | |
130 } | |
131 | |
132 void RenderLayerReflectionInfo::paint(GraphicsContext* context, const LayerPaint
ingInfo& paintingInfo, PaintLayerFlags flags) | |
133 { | |
134 if (m_isPaintingInsideReflection) | |
135 return; | |
136 | |
137 // Mark that we are now inside replica painting. | |
138 m_isPaintingInsideReflection = true; | |
139 LayerPainter(*reflectionLayer()).paintLayer(context, paintingInfo, flags); | |
140 m_isPaintingInsideReflection = false; | |
141 } | |
142 | |
143 } // namespace blink | |
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