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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "config.h" | 5 #include "config.h" |
| 6 #include "core/paint/BoxDecorationData.h" | 6 #include "core/paint/BoxDecorationData.h" |
| 7 | 7 |
| 8 #include "core/layout/LayoutBox.h" | 8 #include "core/layout/LayoutBox.h" |
| 9 #include "core/layout/style/BorderEdge.h" | 9 #include "core/layout/style/BorderEdge.h" |
| 10 #include "core/layout/style/LayoutStyle.h" | 10 #include "core/layout/style/ComputedStyle.h" |
| 11 #include "platform/RuntimeEnabledFeatures.h" | 11 #include "platform/RuntimeEnabledFeatures.h" |
| 12 #include "platform/graphics/GraphicsContext.h" | 12 #include "platform/graphics/GraphicsContext.h" |
| 13 | 13 |
| 14 namespace blink { | 14 namespace blink { |
| 15 | 15 |
| 16 BoxDecorationData::BoxDecorationData(const LayoutBox& layoutBox, GraphicsContext
* context) | 16 BoxDecorationData::BoxDecorationData(const LayoutBox& layoutBox, GraphicsContext
* context) |
| 17 { | 17 { |
| 18 backgroundColor = layoutBox.style()->visitedDependentColor(CSSPropertyBackgr
oundColor); | 18 backgroundColor = layoutBox.style()->visitedDependentColor(CSSPropertyBackgr
oundColor); |
| 19 hasBackground = backgroundColor.alpha() || layoutBox.style()->hasBackgroundI
mage(); | 19 hasBackground = backgroundColor.alpha() || layoutBox.style()->hasBackgroundI
mage(); |
| 20 ASSERT(hasBackground == layoutBox.style()->hasBackground()); | 20 ASSERT(hasBackground == layoutBox.style()->hasBackground()); |
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| 65 contextScaling.setHeight(1); | 65 contextScaling.setHeight(1); |
| 66 | 66 |
| 67 if (borderObscuresBackgroundEdge(*layoutBox.style(), contextScaling)) | 67 if (borderObscuresBackgroundEdge(*layoutBox.style(), contextScaling)) |
| 68 return BackgroundBleedShrinkBackground; | 68 return BackgroundBleedShrinkBackground; |
| 69 if (!hasAppearance && layoutBox.style()->borderObscuresBackground() && layou
tBox.backgroundHasOpaqueTopLayer()) | 69 if (!hasAppearance && layoutBox.style()->borderObscuresBackground() && layou
tBox.backgroundHasOpaqueTopLayer()) |
| 70 return BackgroundBleedBackgroundOverBorder; | 70 return BackgroundBleedBackgroundOverBorder; |
| 71 | 71 |
| 72 return BackgroundBleedClipBackground; | 72 return BackgroundBleedClipBackground; |
| 73 } | 73 } |
| 74 | 74 |
| 75 bool BoxDecorationData::borderObscuresBackgroundEdge(const LayoutStyle& style, c
onst FloatSize& contextScale) const | 75 bool BoxDecorationData::borderObscuresBackgroundEdge(const ComputedStyle& style,
const FloatSize& contextScale) const |
| 76 { | 76 { |
| 77 BorderEdge edges[4]; | 77 BorderEdge edges[4]; |
| 78 style.getBorderEdgeInfo(edges); | 78 style.getBorderEdgeInfo(edges); |
| 79 | 79 |
| 80 for (int i = BSTop; i <= BSLeft; ++i) { | 80 for (int i = BSTop; i <= BSLeft; ++i) { |
| 81 const BorderEdge& currEdge = edges[i]; | 81 const BorderEdge& currEdge = edges[i]; |
| 82 // FIXME: for vertical text | 82 // FIXME: for vertical text |
| 83 float axisScale = (i == BSTop || i == BSBottom) ? contextScale.height()
: contextScale.width(); | 83 float axisScale = (i == BSTop || i == BSBottom) ? contextScale.height()
: contextScale.width(); |
| 84 if (!currEdge.obscuresBackgroundEdge(axisScale)) | 84 if (!currEdge.obscuresBackgroundEdge(axisScale)) |
| 85 return false; | 85 return false; |
| 86 } | 86 } |
| 87 | 87 |
| 88 return true; | 88 return true; |
| 89 } | 89 } |
| 90 | 90 |
| 91 } // namespace blink | 91 } // namespace blink |
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