QAmbientLightReading
#include <QtSensors/QAmbientLightReading>
QtSensors
1.0
Inheritance
| QSensorReading | ||
| QAmbientLightReading | ||
Properties Index
| LightLevel | lightLevel [read-only] |
| QtMobility::qtimestamp | timestamp [read-only] |
Public Functions Index
| QAmbientLightReading (QObject *parent=0) | |
| virtual | ~QAmbientLightReading () |
| virtual void | copyValuesFrom (QSensorReading *other) |
| LightLevel | lightLevel () const |
| void | setLightLevel (LightLevel lightLevel) |
| void | setTimestamp (qtimestamp timestamp) |
| qtimestamp | timestamp () const |
| QVariant | value (int index) const |
| int | valueCount () const |
Protected Functions Index
Only has inherited protected functions
| QScopedPointer< QSensorReadingPrivate > * | d_ptr () |
| QSensorReading (QObject *parent, QSensorReadingPrivate *d) |
Public Types
This enum represents the ambient light level.
Undefined The light level is unknown. Dark It is dark. Twilight It is moderately dark. Light It is light (eg. internal lights). Bright It is bright (eg. shade). Sunny It is very bright (eg. direct sunlight).
- Undefined = 0
- Dark
- Twilight
- Light
- Bright
- Sunny
Properties
LightLevel
the ambient light level.
{QAmbientLightReading Units}
1.0
QtMobility::qtimestamp timestamp[read-only]
the timestamp of the reading.
Returns the timestamp of the reading.
1.0
,1.0
Public Functions
virtual
Destructor.
virtual void
void
Sets the ambient light level to lightLevel.
1.0
void
Sets the timestamp of the reading.
1.0
QVariant
Returns the value of the property at index.
Note that this function is slower than calling the data function directly.
Here is an example of getting a property via the different mechanisms available.
Accessing directly provides the best performance but requires compile-time knowledge of the data you are accessing.
QAccelerometerReading *reading = ...; qreal x = reading->x();
You can also access a property by name. To do this you must call QObject::property().
qreal x = reading->property("x").value<qreal>();
Finally, you can access values via numeric index.
qreal x = reading->value(0).value<qreal>();
Note that value() can only access properties declared with Q_PROPERTY() in sub-classes of QSensorReading.
valueCount(), QObject::property()
1.0
int
Returns the number of extra properties that the reading has.
Note that this does not count properties declared in QSensorReading.
1.0
Protected Functions
(Only has inherited protected functions)
QScopedPointer< QSensorReadingPrivate > *
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