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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "core/style/StyleImage.h" |
| 6 |
| 7 #include "core/svg/graphics/SVGImage.h" |
| 8 #include "core/svg/graphics/SVGImageForContainer.h" |
| 9 |
| 10 namespace blink { |
| 11 |
| 12 LayoutSize StyleImage::applyZoom(const LayoutSize& size, float multiplier) |
| 13 { |
| 14 if (multiplier == 1.0f) |
| 15 return size; |
| 16 |
| 17 LayoutUnit width(size.width() * multiplier); |
| 18 LayoutUnit height(size.height() * multiplier); |
| 19 |
| 20 // Don't let images that have a width/height >= 1 shrink below 1 when zoomed
. |
| 21 if (size.width() > LayoutUnit()) |
| 22 width = std::max(LayoutUnit(1), width); |
| 23 |
| 24 if (size.height() > LayoutUnit()) |
| 25 height = std::max(LayoutUnit(1), height); |
| 26 |
| 27 return LayoutSize(width, height); |
| 28 } |
| 29 |
| 30 LayoutSize StyleImage::imageSizeForSVGImage(SVGImage* svgImage, float multiplier
, const LayoutSize& defaultObjectSize) const |
| 31 { |
| 32 FloatSize unzoomedDefaultObjectSize(defaultObjectSize); |
| 33 unzoomedDefaultObjectSize.scale(1 / multiplier); |
| 34 return applyZoom(LayoutSize(svgImage->concreteObjectSize(svgImage->concreteO
bjectSize(unzoomedDefaultObjectSize))), multiplier); |
| 35 } |
| 36 |
| 37 } // namespace blink |
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