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1 /* | 1 /* |
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved. | 2 * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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114 AffineTransform& contentTransformation = currentContentTransformation(); | 114 AffineTransform& contentTransformation = currentContentTransformation(); |
115 AffineTransform savedContentTransformation = contentTransformation; | 115 AffineTransform savedContentTransformation = contentTransformation; |
116 contentTransformation = subtreeContentTransformation * contentTransformation
; | 116 contentTransformation = subtreeContentTransformation * contentTransformation
; |
117 | 117 |
118 ASSERT(!item->needsLayout()); | 118 ASSERT(!item->needsLayout()); |
119 item->paint(info, IntPoint()); | 119 item->paint(info, IntPoint()); |
120 | 120 |
121 contentTransformation = savedContentTransformation; | 121 contentTransformation = savedContentTransformation; |
122 } | 122 } |
123 | 123 |
124 void SVGImageBufferTools::clipToImageBuffer(GraphicsContext* context, const Affi
neTransform& absoluteTransform, const FloatRect& targetRect, OwnPtr<ImageBuffer>
& imageBuffer) | 124 void SVGImageBufferTools::clipToImageBuffer(GraphicsContext* context, const Affi
neTransform& absoluteTransform, const FloatRect& targetRect, OwnPtr<ImageBuffer>
& imageBuffer, bool safeToClear) |
125 { | 125 { |
126 ASSERT(context); | 126 ASSERT(context); |
127 ASSERT(imageBuffer); | 127 ASSERT(imageBuffer); |
128 | 128 |
129 FloatRect absoluteTargetRect = calculateImageBufferRect(targetRect, absolute
Transform); | 129 FloatRect absoluteTargetRect = calculateImageBufferRect(targetRect, absolute
Transform); |
130 | 130 |
131 // The mask image has been created in the absolute coordinate space, as the
image should not be scaled. | 131 // The mask image has been created in the absolute coordinate space, as the
image should not be scaled. |
132 // So the actual masking process has to be done in the absolute coordinate s
pace as well. | 132 // So the actual masking process has to be done in the absolute coordinate s
pace as well. |
133 context->concatCTM(absoluteTransform.inverse()); | 133 context->concatCTM(absoluteTransform.inverse()); |
134 context->clipToImageBuffer(imageBuffer.get(), absoluteTargetRect); | 134 context->clipToImageBuffer(imageBuffer.get(), absoluteTargetRect); |
135 context->concatCTM(absoluteTransform); | 135 context->concatCTM(absoluteTransform); |
136 | 136 |
137 // When nesting resources, with objectBoundingBox as content unit types, the
re's no use in caching the | 137 // When nesting resources, with objectBoundingBox as content unit types, the
re's no use in caching the |
138 // resulting image buffer as the parent resource already caches the result. | 138 // resulting image buffer as the parent resource already caches the result. |
139 if (!currentContentTransformation().isIdentity()) | 139 if (safeToClear && !currentContentTransformation().isIdentity()) |
140 imageBuffer.clear(); | 140 imageBuffer.clear(); |
141 } | 141 } |
142 | 142 |
143 FloatRect SVGImageBufferTools::clampedAbsoluteTargetRect(const FloatRect& absolu
teTargetRect) | 143 FloatRect SVGImageBufferTools::clampedAbsoluteTargetRect(const FloatRect& absolu
teTargetRect) |
144 { | 144 { |
145 const FloatSize maxImageBufferSize(kMaxImageBufferSize, kMaxImageBufferSize)
; | 145 const FloatSize maxImageBufferSize(kMaxImageBufferSize, kMaxImageBufferSize)
; |
146 return FloatRect(absoluteTargetRect.location(), absoluteTargetRect.size().sh
runkTo(maxImageBufferSize)); | 146 return FloatRect(absoluteTargetRect.location(), absoluteTargetRect.size().sh
runkTo(maxImageBufferSize)); |
147 } | 147 } |
148 | 148 |
149 IntSize SVGImageBufferTools::clampedAbsoluteSize(const IntSize& absoluteSize) | 149 IntSize SVGImageBufferTools::clampedAbsoluteSize(const IntSize& absoluteSize) |
150 { | 150 { |
151 const IntSize maxImageBufferSize(kMaxImageBufferSize, kMaxImageBufferSize); | 151 const IntSize maxImageBufferSize(kMaxImageBufferSize, kMaxImageBufferSize); |
152 return absoluteSize.shrunkTo(maxImageBufferSize); | 152 return absoluteSize.shrunkTo(maxImageBufferSize); |
153 } | 153 } |
154 | 154 |
155 void SVGImageBufferTools::clear2DRotation(AffineTransform& transform) | 155 void SVGImageBufferTools::clear2DRotation(AffineTransform& transform) |
156 { | 156 { |
157 AffineTransform::DecomposedType decomposition; | 157 AffineTransform::DecomposedType decomposition; |
158 transform.decompose(decomposition); | 158 transform.decompose(decomposition); |
159 decomposition.angle = 0; | 159 decomposition.angle = 0; |
160 transform.recompose(decomposition); | 160 transform.recompose(decomposition); |
161 } | 161 } |
162 | 162 |
163 } | 163 } |
164 | 164 |
165 #endif // ENABLE(SVG) | 165 #endif // ENABLE(SVG) |
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