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1 /* | 1 /* |
2 * Copyright (C) 2012 Google, Inc. | 2 * Copyright (C) 2012 Google, Inc. |
3 * All rights reserved. | 3 * All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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53 m_radii = FloatSize(); | 53 m_radii = FloatSize(); |
54 m_usePathFallback = false; | 54 m_usePathFallback = false; |
55 | 55 |
56 calculateRadiiAndCenter(); | 56 calculateRadiiAndCenter(); |
57 | 57 |
58 // Spec: "A negative value is an error. A value of zero disables rendering o f the element." | 58 // Spec: "A negative value is an error. A value of zero disables rendering o f the element." |
59 if (m_radii.width() < 0 || m_radii.height() < 0) | 59 if (m_radii.width() < 0 || m_radii.height() < 0) |
60 return; | 60 return; |
61 | 61 |
62 if (!m_radii.isEmpty()) { | 62 if (!m_radii.isEmpty()) { |
63 // Fallback to RenderSVGShape if shape has a non-scaling stroke. | 63 // Fallback to RenderSVGShape and path-based hit detection if the ellips e |
64 if (hasNonScalingStroke()) { | 64 // has a non-scaling or non-smooth stroke. |
65 if (hasNonScalingStroke() || !hasSmoothStroke()) { | |
Erik Dahlström (inactive)
2014/12/03 15:16:35
Ellipses/circles shouldn't need to care about stro
| |
65 RenderSVGShape::updateShapeFromElement(); | 66 RenderSVGShape::updateShapeFromElement(); |
66 m_usePathFallback = true; | 67 m_usePathFallback = true; |
67 return; | 68 return; |
68 } | 69 } |
69 } | 70 } |
70 | 71 |
71 m_fillBoundingBox = FloatRect(m_center.x() - m_radii.width(), m_center.y() - m_radii.height(), 2 * m_radii.width(), 2 * m_radii.height()); | 72 m_fillBoundingBox = FloatRect(m_center.x() - m_radii.width(), m_center.y() - m_radii.height(), 2 * m_radii.width(), 2 * m_radii.height()); |
72 m_strokeBoundingBox = m_fillBoundingBox; | 73 m_strokeBoundingBox = m_fillBoundingBox; |
73 if (style()->svgStyle().hasStroke()) | 74 if (style()->svgStyle().hasStroke()) |
74 m_strokeBoundingBox.inflate(strokeWidth() / 2); | 75 m_strokeBoundingBox.inflate(strokeWidth() / 2); |
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127 FloatPoint center = FloatPoint(m_center.x() - point.x(), m_center.y() - poin t.y()); | 128 FloatPoint center = FloatPoint(m_center.x() - point.x(), m_center.y() - poin t.y()); |
128 | 129 |
129 // This works by checking if the point satisfies the ellipse equation. | 130 // This works by checking if the point satisfies the ellipse equation. |
130 // (x/rX)^2 + (y/rY)^2 <= 1 | 131 // (x/rX)^2 + (y/rY)^2 <= 1 |
131 float xrX = center.x() / m_radii.width(); | 132 float xrX = center.x() / m_radii.width(); |
132 float yrY = center.y() / m_radii.height(); | 133 float yrY = center.y() / m_radii.height(); |
133 return xrX * xrX + yrY * yrY <= 1.0; | 134 return xrX * xrX + yrY * yrY <= 1.0; |
134 } | 135 } |
135 | 136 |
136 } | 137 } |
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