41 lines
978 B
C++
41 lines
978 B
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "ui/gfx/geometry/vector2d.h"
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#include <cmath>
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#include "base/numerics/clamped_math.h"
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#include "base/strings/stringprintf.h"
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namespace gfx {
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bool Vector2d::IsZero() const {
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return x_ == 0 && y_ == 0;
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}
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void Vector2d::Add(const Vector2d& other) {
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x_ = base::ClampAdd(other.x_, x_);
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y_ = base::ClampAdd(other.y_, y_);
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}
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void Vector2d::Subtract(const Vector2d& other) {
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x_ = base::ClampSub(x_, other.x_);
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y_ = base::ClampSub(y_, other.y_);
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}
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int64_t Vector2d::LengthSquared() const {
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return static_cast<int64_t>(x_) * x_ + static_cast<int64_t>(y_) * y_;
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}
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float Vector2d::Length() const {
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return static_cast<float>(std::sqrt(static_cast<double>(LengthSquared())));
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}
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std::string Vector2d::ToString() const {
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return base::StringPrintf("[%d %d]", x_, y_);
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}
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} // namespace gfx
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