Class QAccelPlot::DateTimeTickLabelFormatter¶

ClassList > QAccelPlot > DateTimeTickLabelFormatter

A tick label formatter that displays tick values as formatted date/time strings. More...

#include <DateTimeTickLabelFormatter.hpp>

Inherits the following classes: QAccelPlot::TickLabelFormatter

Inheritance diagram¶

flowchart TB
  classQAccelPlot_1_1DateTimeTickLabelFormatter["QAccelPlot::DateTimeTickLabelFormatter"]

  classQAccelPlot_1_1TickLabelFormatter["QAccelPlot::TickLabelFormatter"]
  classQAccelPlot_1_1TickLabelFormatter --> classQAccelPlot_1_1DateTimeTickLabelFormatter
  click classQAccelPlot_1_1TickLabelFormatter "../classQAccelPlot_1_1TickLabelFormatter/" "Open QAccelPlot::TickLabelFormatter"

  external_base_classQAccelPlot_1_1TickLabelFormatter_1["QObject"]
  external_base_classQAccelPlot_1_1TickLabelFormatter_1 --> classQAccelPlot_1_1TickLabelFormatter

Public Properties¶

Type	Name
property QString	dateTimeFormat The QDateTime format string used to render each tick label. Default: `"yyyy-MM-dd HH:mm:ss"` .

Public Properties inherited from QAccelPlot::TickLabelFormatter¶

See QAccelPlot::TickLabelFormatter

Type	Name
property QML_ANONYMOUSQJSValue	tickLabel Optional JavaScript callback `function(value, tickStep)` that overrides`doFormat()` .

Public Signals¶

Type	Name
signal void	dateTimeFormatChanged Emitted when the dateTimeFormat property changes.

Public Signals inherited from QAccelPlot::TickLabelFormatter¶

See QAccelPlot::TickLabelFormatter

Type	Name
signal void	formatChanged Emitted whenever a property that affects formatted output changes.
signal void	tickLabelChanged Emitted when the tickLabel property changes.

Public Functions¶

Type	Name
	DateTimeTickLabelFormatter (QObject * parent=nullptr) Constructs a DateTimeTickLabelFormatter with the given__parent .
QString	dateTimeFormat () const Returns the current date/time format string.
void	setDateTimeFormat (const QString & format) Sets the date/time format string to format .

Public Functions inherited from QAccelPlot::TickLabelFormatter¶

See QAccelPlot::TickLabelFormatter

Type	Name
	TickLabelFormatter (QObject * parent=nullptr) Constructs an TickLabelFormatter with the given__parent .
QString	format (qreal value, qreal tickStep) const Returns the display string for value at the given__tickStep .
QString	formatLogTick (qreal value) const Returns the display string for a major tick at value on a logarithmic axis.
virtual qreal	minimumTickStep () const Returns the smallest major tick step a linear axis may use with this formatter.
void	setTickLabel (const QJSValue & tickLabel) Sets the JavaScript override callback to tickLabel .
QJSValue	tickLabel () const Returns the optional JavaScript override callback.

Protected Functions¶

Type	Name
virtual QString	doFormat (qreal value, qreal tickStep) override const Returns a date/time string for value (milliseconds since epoch).

Protected Functions inherited from QAccelPlot::TickLabelFormatter¶

See QAccelPlot::TickLabelFormatter

Type	Name
virtual QString	doFormat (qreal value, qreal tickStep) const = 0 Subclass entry point — returns the formatted label for value .
virtual QString	doFormatLogTick (qreal value) const Subclass entry point for log-scale major ticks — returns the label for value .

Detailed Description¶

Tick values are interpreted as milliseconds since the Unix epoch (1970-01-01T00:00:00 UTC). Nonfinite values and values outside the qint64 millisecond range produce an empty label.

Public Properties Documentation¶

property dateTimeFormat¶

The QDateTime format string used to render each tick label. Default: "yyyy-MM-dd HH:mm:ss" .

QString QAccelPlot::DateTimeTickLabelFormatter::dateTimeFormat;

Public Signals Documentation¶

signal dateTimeFormatChanged¶

Emitted when the dateTimeFormat property changes.

void QAccelPlot::DateTimeTickLabelFormatter::dateTimeFormatChanged;

Public Functions Documentation¶

function DateTimeTickLabelFormatter¶

Constructs a DateTimeTickLabelFormatter with the given__parent .

explicit QAccelPlot::DateTimeTickLabelFormatter::DateTimeTickLabelFormatter (
    QObject * parent=nullptr
)

function dateTimeFormat¶

Returns the current date/time format string.

QString QAccelPlot::DateTimeTickLabelFormatter::dateTimeFormat () const

function setDateTimeFormat¶

Sets the date/time format string to format .

void QAccelPlot::DateTimeTickLabelFormatter::setDateTimeFormat (
    const QString & format
)

Protected Functions Documentation¶

function doFormat¶

Returns a date/time string for value (milliseconds since epoch).

virtual QString QAccelPlot::DateTimeTickLabelFormatter::doFormat (
    qreal value,
    qreal tickStep
) override const

Implements QAccelPlot::TickLabelFormatter::doFormat

The documentation for this class was generated from the following file QAccelPlot/src/QAccelPlot/formatters/DateTimeTickLabelFormatter.hpp