"T", "P", "E", "Z", "Y"};
const int FirstSIPrefix = 8;
const int FirstSIPrefixPower = -(FirstSIPrefix * 3);
+const double MinTimeDelta = 1e-15; // Anything below 1 fs can be considered zero
-QString format_si_value(double v, QString unit, int prefix,
+static QString format_si_value(double v, QString unit, int prefix,
unsigned int precision, bool sign)
{
if (prefix < 0) {
return s;
}
+QString format_si_value(const Timestamp& v, QString unit, int prefix,
+ unsigned int precision, bool sign)
+{
+ return format_si_value(v.convert_to<double>(), unit, prefix, precision, sign);
+}
+
static QString pad_number(unsigned int number, int length)
{
return QString("%1").arg(number, length, 10, QChar('0'));
}
-static QString format_time_in_full(double t, signed precision, bool force_sign)
+static QString format_time_in_full(double t, signed precision)
{
const unsigned int whole_seconds = abs((int) t);
const unsigned int days = whole_seconds / (60 * 60 * 24);
QString s;
QTextStream ts(&s);
- if (force_sign && (t >= 0))
+ if (t >= 0)
ts << "+";
- if (t < 0)
+ else
ts << "-";
bool use_padding = false;
if (precision >= 0) {
ts << pad_number(seconds, use_padding ? 2 : 0);
- const double fraction = fabs(t - whole_seconds);
+ const double fraction = fabs(t) - whole_seconds;
if (precision > 0 && precision < 1000) {
QString fs = QString("%1").arg(fraction, -(2 + precision), 'f',
return s;
}
-QString format_time(double t, int prefix, TimeUnit unit,
- unsigned int precision, double step_size, bool sign)
+static QString format_time_with_si(double t, QString unit, int prefix,
+ unsigned int precision)
{
- // If we have to use samples then we have no alternative formats
- if (unit == Samples) {
- // The precision is always given without taking the prefix into account
- // so we need to deduct the number of decimals the prefix might imply
- const int prefix_order =
- -(prefix * 3 + pv::util::FirstSIPrefixPower);
+ // The precision is always given without taking the prefix into account
+ // so we need to deduct the number of decimals the prefix might imply
+ const int prefix_order =
+ -(prefix * 3 + pv::util::FirstSIPrefixPower);
- const unsigned int relative_prec =
- (prefix >= pv::util::FirstSIPrefix) ? precision :
- std::max((int)(precision - prefix_order), 0);
+ const unsigned int relative_prec =
+ (prefix >= pv::util::FirstSIPrefix) ? precision :
+ std::max((int)(precision - prefix_order), 0);
- return format_si_value(t, "sa", prefix, relative_prec, sign);
- }
+ return format_si_value(t, unit, prefix, relative_prec);
+}
- // View zoomed way out -> low precision (0), high step size (>60s)
- // -> DD:HH:MM
- if ((precision == 0) && (step_size >= 60)) {
- return format_time_in_full(t, -1, sign);
- }
+static QString format_time(double t, int prefix, TimeUnit unit, unsigned int precision)
+{
+ // Make 0 appear as 0, not random +0 or -0
+ if (fabs(t) < MinTimeDelta)
+ return "0";
+
+ // If we have to use samples then we have no alternative formats
+ if (unit == Samples)
+ return format_time_with_si(t, "sa", prefix, precision);
// View in "normal" range -> medium precision, medium step size
// -> HH:MM:SS.mmm... or xxxx (si unit) if less than 60 seconds
// View zoomed way in -> high precision (>3), low step size (<1s)
// -> HH:MM:SS.mmm... or xxxx (si unit) if less than 60 seconds
- if (abs(t) < 60) {
- // The precision is always given without taking the prefix into account
- // so we need to deduct the number of decimals the prefix might imply
- const int prefix_order =
- -(prefix * 3 + pv::util::FirstSIPrefixPower);
-
- const unsigned int relative_prec =
- (prefix >= pv::util::FirstSIPrefix) ? precision :
- std::max((int)(precision - prefix_order), 0);
-
- return format_si_value(t, "s", prefix, relative_prec, sign);
- } else
- return format_time_in_full(t, precision, sign);
+ if (abs(t) < 60)
+ return format_time_with_si(t, "s", prefix, precision);
+ else
+ return format_time_in_full(t, precision);
+}
+
+QString format_time(const Timestamp& t, int prefix, TimeUnit unit, unsigned int precision)
+{
+ return format_time(t.convert_to<double>(), prefix, unit, precision);
}
-QString format_second(double second)
+QString format_second(const Timestamp& second)
{
- return format_si_value(second, "s", -1, 0, false);
+ return format_si_value(second.convert_to<double>(), "s", -1, 0, false);
}
} // namespace util