15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/vector2d.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <cmath> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 97d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#include "base/strings/stringprintf.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace gfx { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool Vector2d::IsZero() const { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return x_ == 0 && y_ == 0; 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Vector2d::Add(const Vector2d& other) { 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) x_ += other.x_; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) y_ += other.y_; 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Vector2d::Subtract(const Vector2d& other) { 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) x_ -= other.x_; 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) y_ -= other.y_; 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int64 Vector2d::LengthSquared() const { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return static_cast<int64>(x_) * x_ + static_cast<int64>(y_) * y_; 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)float Vector2d::Length() const { 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return static_cast<float>(std::sqrt(static_cast<double>(LengthSquared()))); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)std::string Vector2d::ToString() const { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::StringPrintf("[%d %d]", x_, y_); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace gfx 40