244 lines
6.6 KiB
C++
244 lines
6.6 KiB
C++
// Copyright (c) 2016-2018 Easy2D - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#pragma once
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#include "macros.h"
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#include <cstdint>
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namespace easy2d
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{
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namespace time
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{
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// 时间段
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//
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// Usage:
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// 时间段表示法:
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// 5 秒: time::Second * 5
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// 1.5 小时: time::Hour * 1.5
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// 3 小时 45 分 15 秒: time::Hour * 3 + time::Minute * 45 + time::Second * 15
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// 时间段格式化: auto d = time::ParseDuration(L"1h35m"); // 1小时35分钟
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// 在 VS2015 及更高版本可以使用 time literals:
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// 5 秒: 5_s
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// 1.5 小时: 1.5_h
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// 3 小时 45 分 15 秒: 3_h + 45_m + 15_s
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//
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class Duration
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{
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public:
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Duration();
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explicit Duration(
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int64_t milliseconds
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);
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// 转化为毫秒
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int64_t Milliseconds() const;
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// 转化为秒
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float Seconds() const;
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// 转化为分钟
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float Minutes() const;
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// 转化为小时
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float Hours() const;
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// 转为字符串
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std::wstring ToString() const;
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bool operator== (const Duration &) const;
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bool operator!= (const Duration &) const;
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bool operator> (const Duration &) const;
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bool operator>= (const Duration &) const;
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bool operator< (const Duration &) const;
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bool operator<= (const Duration &) const;
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Duration operator + (const Duration &) const;
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Duration operator - (const Duration &) const;
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Duration operator - () const;
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Duration operator * (int) const;
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Duration operator * (unsigned long long) const;
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Duration operator * (float) const;
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Duration operator * (double) const;
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Duration operator * (long double) const;
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Duration operator / (int) const;
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Duration operator / (unsigned long long) const;
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Duration operator / (float) const;
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Duration operator / (double) const;
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Duration operator / (long double) const;
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Duration& operator += (const Duration &);
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Duration& operator -= (const Duration &);
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Duration& operator *= (int);
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Duration& operator *= (unsigned long long);
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Duration& operator *= (float);
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Duration& operator *= (double);
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Duration& operator *= (long double);
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Duration& operator /= (int);
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Duration& operator /= (unsigned long long);
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Duration& operator /= (float);
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Duration& operator /= (double);
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Duration& operator /= (long double);
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friend Duration operator* (int, const Duration &);
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friend Duration operator* (unsigned long long, const Duration &);
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friend Duration operator* (float, const Duration &);
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friend Duration operator* (double, const Duration &);
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friend Duration operator* (long double, const Duration &);
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friend Duration operator/ (int, const Duration &);
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friend Duration operator/ (unsigned long long, const Duration &);
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friend Duration operator/ (float, const Duration &);
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friend Duration operator/ (double, const Duration &);
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friend Duration operator/ (long double, const Duration &);
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friend std::wostream& operator<< (std::wostream &, const Duration &);
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friend std::wistream& operator>> (std::wistream &, Duration &);
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private:
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int64_t milliseconds_;
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};
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extern const Duration Millisecond; // 毫秒
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extern const Duration Second; // 秒
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extern const Duration Minute; // 分钟
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extern const Duration Hour; // 小时
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// 时间
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//
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// Usage:
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// 获取当前时间: Time now = time::Now();
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// 时间操作:
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// 两时间相减, 得到一个 Duration 对象, 例如:
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// Time t1 = time::Now();
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// ... // 做些什么
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// Time t2 = time::Now();
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// auto duration = t2 - t1;
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// 获取两时间相差的毫秒数:
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// int ms = duration.Milliseconds();
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//
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class TimePoint
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{
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public:
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TimePoint();
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explicit TimePoint(
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const Duration& dur_since_epoch
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);
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explicit TimePoint(
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int64_t dur_since_epoch
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);
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TimePoint(
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const TimePoint& other
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);
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TimePoint(
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TimePoint&& other
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);
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// 获取时间戳
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time_t GetTimeStamp() const;
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// 是否是零时
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bool IsZero() const;
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TimePoint operator + (const Duration &) const;
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TimePoint operator - (const Duration &) const;
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TimePoint& operator += (const Duration &);
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TimePoint& operator -= (const Duration &);
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Duration operator - (const TimePoint &) const;
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TimePoint& operator = (const TimePoint &) E2D_NOEXCEPT;
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TimePoint& operator = (TimePoint &&) E2D_NOEXCEPT;
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private:
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Duration dur_since_epoch_;
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};
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// 获取当前时间
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TimePoint Now();
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// 时间段格式化
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// 时间段字符串允许是有符号的浮点数, 并且带有时间单位后缀
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// 例如: "300ms", "-1.5h", "2h45m"
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// 允许的时间单位有 "ms", "s", "m", "h"
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Duration ParseDuration(const std::wstring& parse_str);
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}
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}
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#if VS_VER >= VS_2015
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namespace easy2d
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{
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inline namespace literals
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{
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inline const easy2d::time::Duration operator "" _ms(long double val)
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{
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return easy2d::time::Millisecond * val;
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}
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inline const easy2d::time::Duration operator "" _s(long double val)
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{
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return easy2d::time::Second * val;
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}
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inline const easy2d::time::Duration operator "" _m(long double val)
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{
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return easy2d::time::Minute * val;
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}
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inline const easy2d::time::Duration operator "" _h(long double val)
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{
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return easy2d::time::Hour * val;
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}
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inline const easy2d::time::Duration operator "" _ms(unsigned long long val)
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{
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return easy2d::time::Millisecond * val;
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}
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inline const easy2d::time::Duration operator "" _s(unsigned long long val)
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{
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return easy2d::time::Second * val;
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}
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inline const easy2d::time::Duration operator "" _m(unsigned long long val)
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{
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return easy2d::time::Minute * val;
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}
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inline const easy2d::time::Duration operator "" _h(unsigned long long val)
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{
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return easy2d::time::Hour * val;
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}
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}
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namespace time
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{
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using namespace easy2d::literals;
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}
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}
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#endif
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