Move QmlTimer to util/

1 files changed, 233 insertions, 0 deletions

diff --git a/src/declarative/util/qmltimer.cpp b/src/declarative/util/qmltimer.cpp
new file mode 100644
index 0000000..4af83d3
--- /dev/null
+++ b/src/declarative/util/qmltimer.cpp
@@ -0,0 +1,233 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "QtCore/qcoreapplication.h"
+#include "QtCore/qpauseanimation.h"
+#include "private/qobject_p.h"
+#include "qmltimer.h"
+#include "qdebug.h"
+
+QT_BEGIN_NAMESPACE
+
+QML_DEFINE_TYPE(QmlTimer,Timer)
+
+class QmlTimerPrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QmlTimer)
+public:
+    QmlTimerPrivate()
+        : interval(1000), running(false), repeating(false), triggeredOnStart(false)
+        , componentComplete(false) {}
+    int interval;
+    bool running;
+    bool repeating;
+    bool triggeredOnStart;
+    QPauseAnimation pause;
+    bool componentComplete;
+};
+
+/*!
+    \qmlclass Timer QFxTimer
+    \brief The Timer item triggers a handler at a specified interval.
+
+    A timer can be used to trigger an action either once, or repeatedly
+    at a given interval.
+
+    \qml
+    Timer {
+        interval: 500; running: true; repeat: true
+        onTriggered: Time.text = Date().toString()
+    }
+    Text {
+        id: Time
+    }
+    \endqml
+
+*/
+
+QmlTimer::QmlTimer(QObject *parent)
+    : QObject(*(new QmlTimerPrivate), parent)
+{
+    Q_D(QmlTimer);
+    connect(&d->pause, SIGNAL(currentLoopChanged(int)), this, SLOT(ticked()));
+    connect(&d->pause, SIGNAL(finished()), this, SLOT(ticked()));
+    connect(&d->pause, SIGNAL(stateChanged(QAbstractAnimation::State,QAbstractAnimation::State))
+            , this, SLOT(stateChanged(QAbstractAnimation::State,QAbstractAnimation::State)));
+    d->pause.setLoopCount(1);
+    d->pause.setDuration(d->interval);
+}
+
+/*!
+    \qmlproperty int Timer::interval
+
+    Sets the \a interval in milliseconds between triggering.
+*/
+void QmlTimer::setInterval(int interval)
+{
+    Q_D(QmlTimer);
+    if (interval != d->interval) {
+        d->interval = interval;
+        update();
+    }
+}
+
+int QmlTimer::interval() const
+{
+    Q_D(const QmlTimer);
+    return d->interval;
+}
+
+/*!
+    \qmlproperty bool Timer::running
+
+    If set to true, starts the timer; otherwise stops the timer.
+    For a non-repeating timer, \a running  will be set to false after the
+    timer has been triggered.
+
+    \sa repeat
+*/
+bool QmlTimer::isRunning() const
+{
+    Q_D(const QmlTimer);
+    return d->running;
+}
+
+void QmlTimer::setRunning(bool running)
+{
+    Q_D(QmlTimer);
+    if (d->running != running) {
+        d->running = running;
+        emit runningChanged();
+        update();
+    }
+}
+
+/*!
+    \qmlproperty bool Timer::repeat
+
+    If \a repeat is true the timer will be triggered repeatedly at the
+    specified interval; otherwise, the timer will trigger once at the
+    specified interval and then stop (i.e. running will be set to false).
+
+    \sa running
+*/
+bool QmlTimer::isRepeating() const
+{
+    Q_D(const QmlTimer);
+    return d->repeating;
+}
+
+void QmlTimer::setRepeating(bool repeating)
+{
+    Q_D(QmlTimer);
+    if (repeating != d->repeating) {
+        d->repeating = repeating;
+        update();
+    }
+}
+
+/*!
+    \qmlproperty bool Timer::triggeredOnStart
+
+    If \a triggeredOnStart is true, the timer will be triggered immediately
+    when started, and subsequently at the specified interval.
+
+    \sa running
+*/
+bool QmlTimer::triggeredOnStart() const
+{
+    Q_D(const QmlTimer);
+    return d->triggeredOnStart;
+}
+
+void QmlTimer::setTriggeredOnStart(bool triggeredOnStart)
+{
+    Q_D(QmlTimer);
+    if (d->triggeredOnStart != triggeredOnStart) {
+        d->triggeredOnStart = triggeredOnStart;
+        update();
+    }
+}
+
+void QmlTimer::update()
+{
+    Q_D(QmlTimer);
+    if (!d->componentComplete)
+        return;
+    d->pause.stop();
+    if (d->running) {
+        d->pause.setLoopCount(d->repeating ? -1 : 1);
+        d->pause.setDuration(d->interval);
+        d->pause.start();
+        if (d->triggeredOnStart) {
+            QCoreApplication::removePostedEvents(this, QEvent::MetaCall);
+            QMetaObject::invokeMethod(this, "ticked", Qt::QueuedConnection);
+        }
+    }
+}
+
+void QmlTimer::componentComplete()
+{
+    Q_D(QmlTimer);
+    d->componentComplete = true;
+    update();
+}
+
+/*!
+    \qmlsignal Timer::onTriggered
+
+    This handler is called when the Timer is triggered.
+*/
+void QmlTimer::ticked()
+{
+    emit triggered();
+}
+
+void QmlTimer::stateChanged(QAbstractAnimation::State, QAbstractAnimation::State state)
+{
+    Q_D(QmlTimer);
+    if (d->running && state != QAbstractAnimation::Running) {
+        d->running = false;
+        emit runningChanged();
+    }
+}
+
+QT_END_NAMESPACE