119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
#include "./timespan.h"
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#include "../conversion/stringconversion.h"
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#include <sstream>
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#include <cmath>
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#include <iomanip>
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#include <vector>
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using namespace std;
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using namespace ChronoUtilities;
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using namespace ConversionUtilities;
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/*!
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* \class ChronoUtilities::TimeSpan
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* \brief Represents a time interval.
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* \remarks Time values are measured in 100-nanosecond units called ticks.
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*/
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/*!
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* \brief Parses the given std::string \a str as TimeSpan.
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*/
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TimeSpan TimeSpan::fromString(const string &str)
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{
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return TimeSpan::fromString(str, ':');
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}
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/*!
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* \brief Parses the given std::string \a str as TimeSpan.
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*/
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TimeSpan TimeSpan::fromString(const string &str, char separator)
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{
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vector<double> parts;
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string::size_type start = 0;
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string::size_type end = str.find(separator, start);
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while(true) {
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parts.push_back(stringToNumber<double>(str.substr(start, end - start)));
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if(end == string::npos) {
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break;
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}
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start = end + 1;
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if(start >= str.size()) {
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break;
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}
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end = str.find(separator, start);
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}
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switch(parts.size()) {
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case 0:
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return TimeSpan();
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case 1:
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return TimeSpan::fromSeconds(parts.front());
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case 2:
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return TimeSpan::fromMinutes(parts.front()) + TimeSpan::fromSeconds(parts[1]);
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case 3:
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return TimeSpan::fromHours(parts.front()) + TimeSpan::fromMinutes(parts[1]) + TimeSpan::fromSeconds(parts[2]);
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default:
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return TimeSpan::fromDays(parts.front()) + TimeSpan::fromHours(parts[1]) + TimeSpan::fromMinutes(parts[2]) + TimeSpan::fromSeconds(parts[3]);
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}
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}
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/*!
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* \brief Converts the value of the current TimeSpan object to its equivalent std::string representation
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* according the given \a format.
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*
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* If \a noMilliseconds is true the time interval will be rounded to full seconds.
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*/
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string TimeSpan::toString(TimeSpanOutputFormat format, bool noMilliseconds) const
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{
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string result;
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toString(result, format, noMilliseconds);
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return result;
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}
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/*!
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* \brief Converts the value of the current TimeSpan object to its equivalent std::string representation
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* according the given \a format.
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*
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* If \a noMilliseconds is true the time interval will be rounded to full seconds.
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*
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* The string representation will be stored in \a result.
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*/
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void TimeSpan::toString(string &result, TimeSpanOutputFormat format, bool noMilliseconds) const
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{
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stringstream s(stringstream::in | stringstream::out);
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if(isNegative())
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s << "- ";
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switch(format) {
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case TimeSpanOutputFormat::Normal:
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s << setfill('0') << setw(2) << floor(fabs(totalHours())) << ":" << setw(2) << minutes() << ":" << setw(2) << seconds() << " ";
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break;
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case TimeSpanOutputFormat::WithMeasures:
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if(isNull()) {
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s << "0 s ";
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} else if(totalMilliseconds() < 1.0) {
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s << setprecision(2) << (m_ticks / 10.0) << " µs ";
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} else {
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if(days()) {
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s << days() << " d ";
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}
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if(hours()) {
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s << hours() << " h ";
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}
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if(minutes()) {
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s << minutes() << " min ";
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}
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if(seconds()) {
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s << seconds() << " s ";
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}
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if(!noMilliseconds && milliseconds()) {
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s << milliseconds() << " ms ";
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}
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}
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break;
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}
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result = s.str().substr(0, static_cast<string::size_type>(s.tellp()) - 1);
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}
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