com.trolltech.qt.core
Class QBasicTimer

java.lang.Object
  com.trolltech.qt.internal.QSignalEmitterInternal
      com.trolltech.qt.QSignalEmitter
          com.trolltech.qt.QtJambiObject
              com.trolltech.qt.core.QBasicTimer

All Implemented Interfaces:

QtJambiInterface, java.lang.Cloneable

public class QBasicTimer
extends QtJambiObject
implements java.lang.Cloneable

The QBasicTimer class provides timer events for objects. This is a fast, lightweight, and low-level class used by Qt internally. We recommend using the higher-level QTimer class rather than this class if you want to use timers in your applications.

To use this class, create a QBasicTimer, and call its start() function with a timeout interval and with a pointer to a QObject subclass. When the timer times out it will send a timer event to the QObject subclass. The timer can be stopped at any time using stop(). isActive() returns true for a timer that is running; i.e. it has been started, has not reached the timeout time, and has not been stopped. The timer's ID can be retrieved using timerId().

The Wiggly example uses QBasicTimer to repaint a widget at regular intervals.

See also:

QTimer, QTimerEvent, QObject::timerEvent(), Timers, and Wiggly Example.

Nested Class Summary

Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter

QSignalEmitter.AbstractSignal, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9

Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal

Field Summary

Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

currentSender

Constructor Summary

QBasicTimer()
Contructs a basic timer.

Method Summary

QBasicTimer	clone() This method is reimplemented for internal reasons
boolean	isActive() Returns true if the timer is running, has not yet timed out, and has not been stopped; otherwise returns false.
void	start(int msec, QObject obj) Starts (or restarts) the timer with a msec milliseconds timeout.
void	stop() Stops the timer.
int	timerId() Returns the timer's ID.

Methods inherited from class com.trolltech.qt.QtJambiObject

dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr

Methods inherited from class com.trolltech.qt.QSignalEmitter

blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread

Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

__qt_signalInitialization

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.trolltech.qt.QtJambiInterface

disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership

Constructor Detail

QBasicTimer

public QBasicTimer()

Contructs a basic timer.

See also:

start().

Method Detail

isActive

public final boolean isActive()

Returns true if the timer is running, has not yet timed out, and has not been stopped; otherwise returns false.

See also:

start(), and stop().

start

public final void start(int msec,
                        QObject obj)

Starts (or restarts) the timer with a msec milliseconds timeout.

The given object will receive timer events.

See also:

stop(), isActive(), and QObject::timerEvent().

stop

public final void stop()

Stops the timer.

See also:

start(), and isActive().

timerId

public final int timerId()

Returns the timer's ID.

See also:

QTimerEvent::timerId().

clone

public QBasicTimer clone()

This method is reimplemented for internal reasons

Overrides:

clone in class java.lang.Object