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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "core/style/StyleImage.h"
#include "core/svg/graphics/SVGImage.h"
#include "core/svg/graphics/SVGImageForContainer.h"
#include "platform/geometry/LayoutSize.h"
namespace blink {
LayoutSize StyleImage::applyZoom(const LayoutSize& size, float multiplier) {
if (multiplier == 1.0f)
return size;
LayoutUnit width(size.width() * multiplier);
LayoutUnit height(size.height() * multiplier);
// Don't let images that have a width/height >= 1 shrink below 1 when zoomed.
if (size.width() > LayoutUnit())
width = std::max(LayoutUnit(1), width);
if (size.height() > LayoutUnit())
height = std::max(LayoutUnit(1), height);
return LayoutSize(width, height);
}
LayoutSize StyleImage::imageSizeForSVGImage(
SVGImage* svgImage,
float multiplier,
const LayoutSize& defaultObjectSize) const {
FloatSize unzoomedDefaultObjectSize(defaultObjectSize);
unzoomedDefaultObjectSize.scale(1 / multiplier);
LayoutSize imageSize(
roundedIntSize(svgImage->concreteObjectSize(unzoomedDefaultObjectSize)));
return applyZoom(imageSize, multiplier);
}
} // namespace blink
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