| // 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 "third_party/blink/renderer/core/layout/geometry/physical_size.h" |
| |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| |
| namespace blink { |
| |
| PhysicalSize PhysicalSize::FitToAspectRatio(const PhysicalSize& aspect_ratio, |
| AspectRatioFit fit) const { |
| // Convert to float to avoid overflow of LayoutUnit in multiplication below |
| // and improve precision when calculating scale. |
| float height_float = height.ToFloat(); |
| float width_float = width.ToFloat(); |
| float height_scale = height_float / aspect_ratio.height.ToFloat(); |
| float width_scale = width_float / aspect_ratio.width.ToFloat(); |
| if ((width_scale > height_scale) != (fit == kAspectRatioFitGrow)) { |
| return {LayoutUnit::FromFloatRound(height_float * aspect_ratio.width / |
| aspect_ratio.height), |
| height}; |
| } |
| return {width, LayoutUnit::FromFloatRound(width_float * aspect_ratio.height / |
| aspect_ratio.width)}; |
| } |
| |
| String PhysicalSize::ToString() const { |
| return String::Format("%sx%s", width.ToString().Ascii().c_str(), |
| height.ToString().Ascii().c_str()); |
| } |
| |
| std::ostream& operator<<(std::ostream& os, const PhysicalSize& value) { |
| return os << value.ToString(); |
| } |
| |
| } // namespace blink |
