QtMobility Reference Documentation

QMediaTimeInterval Class Reference

The QMediaTimeInterval class represents a time interval with integer precision. More...

 #include <QMediaTimeInterval>

This class was introduced in Qt Mobility 1.0.

Public Functions

QMediaTimeInterval ()
QMediaTimeInterval ( qint64 start, qint64 end )
QMediaTimeInterval ( const QMediaTimeInterval & other )
bool contains ( qint64 time ) const
qint64 end () const
bool isNormal () const
QMediaTimeInterval normalized () const
qint64 start () const
QMediaTimeInterval translated ( qint64 offset ) const

Detailed Description

The QMediaTimeInterval class represents a time interval with integer precision.

An interval is specified by an inclusive start() and end() time. These must be set in the constructor, as this is an immutable class. The specific units of time represented by the class have not been defined - it is suitable for any times which can be represented by a signed 64 bit integer.

The isNormal() method determines if a time interval is normal (a normal time interval has start() <= end()). An abnormal interval can be converted in to a normal interval by calling the normalized() method.

The contains() method determines if a specified time lies within the time interval.

The translated() method returns a time interval which has been translated forwards or backwards through time by a specified offset.

See also QMediaTimeRange.

Member Function Documentation

QMediaTimeInterval::QMediaTimeInterval ()

Constructs an empty interval.

QMediaTimeInterval::QMediaTimeInterval ( qint64 start, qint64 end )

Constructs an interval with the specified start and end times.

This function was introduced in Qt Mobility 1.0.

QMediaTimeInterval::QMediaTimeInterval ( const QMediaTimeInterval & other )

Constructs an interval by taking a copy of other.

This function was introduced in Qt Mobility 1.0.

bool QMediaTimeInterval::contains ( qint64 time ) const

Returns true if the time interval contains the specified time. That is, start() <= time <= end().

This function was introduced in Qt Mobility 1.0.

qint64 QMediaTimeInterval::end () const

Returns the end time of the interval.

This function was introduced in Qt Mobility 1.0.

See also start().

bool QMediaTimeInterval::isNormal () const

Returns true if this time interval is normal. A normal time interval has start() <= end().

This function was introduced in Qt Mobility 1.0.

See also normalized().

QMediaTimeInterval QMediaTimeInterval::normalized () const

Returns a normalized version of this interval.

If the start() time of the interval is greater than the end() time, then the returned interval has the start and end times swapped.

This function was introduced in Qt Mobility 1.0.

qint64 QMediaTimeInterval::start () const

Returns the start time of the interval.

This function was introduced in Qt Mobility 1.0.

See also end().

QMediaTimeInterval QMediaTimeInterval::translated ( qint64 offset ) const

Returns a copy of this time interval, translated by a value of offset. An interval can be moved forward through time with a positive offset, or backward through time with a negative offset.

This function was introduced in Qt Mobility 1.0.

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