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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QABSTRACTANIMATION_P_H
#define QABSTRACTANIMATION_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of QIODevice. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qbasictimer.h>
#include <QtCore/qdatetime.h>
#include <QtCore/qtimer.h>
#include <QtCore/qelapsedtimer.h>
#include <private/qobject_p.h>
#include <qabstractanimation.h>
#ifdef Q_OS_WIN
#include <qt_windows.h>
#endif
#ifndef QT_NO_ANIMATION
QT_BEGIN_NAMESPACE
class QAnimationGroup;
class QAbstractAnimation;
class QAbstractAnimationPrivate : public QObjectPrivate
{
public:
QAbstractAnimationPrivate()
: state(QAbstractAnimation::Stopped),
direction(QAbstractAnimation::Forward),
totalCurrentTime(0),
currentTime(0),
loopCount(1),
currentLoop(0),
deleteWhenStopped(false),
hasRegisteredTimer(false),
isPause(false),
isGroup(false),
group(0)
{
}
virtual ~QAbstractAnimationPrivate() {}
static QAbstractAnimationPrivate *get(QAbstractAnimation *q)
{
return q->d_func();
}
QAbstractAnimation::State state;
QAbstractAnimation::Direction direction;
void setState(QAbstractAnimation::State state);
int totalCurrentTime;
int currentTime;
int loopCount;
int currentLoop;
bool deleteWhenStopped;
bool hasRegisteredTimer;
bool isPause;
bool isGroup;
QAnimationGroup *group;
private:
Q_DECLARE_PUBLIC(QAbstractAnimation)
};
class QUnifiedTimer;
class QDefaultAnimationDriver : public QAnimationDriver
{
Q_OBJECT
public:
QDefaultAnimationDriver(QUnifiedTimer *timer);
void timerEvent(QTimerEvent *e);
private Q_SLOTS:
void startTimer();
void stopTimer();
private:
QBasicTimer m_timer;
QUnifiedTimer *m_unified_timer;
};
class Q_CORE_EXPORT QAnimationDriverPrivate : public QObjectPrivate
{
public:
QAnimationDriverPrivate() : running(false) {}
bool running;
};
typedef QElapsedTimer ElapsedTimer;
class Q_CORE_EXPORT QUnifiedTimer : public QObject
{
private:
QUnifiedTimer();
public:
//XXX this is needed by dui
static QUnifiedTimer *instance();
static QUnifiedTimer *instance(bool create);
static void registerAnimation(QAbstractAnimation *animation, bool isTopLevel);
static void unregisterAnimation(QAbstractAnimation *animation);
//defines the timing interval. Default is DEFAULT_TIMER_INTERVAL
void setTimingInterval(int interval);
/*
this allows to have a consistent timer interval at each tick from the timer
not taking the real time that passed into account.
*/
void setConsistentTiming(bool consistent) { consistentTiming = consistent; }
//these facilitate fine-tuning of complex animations
void setSlowModeEnabled(bool enabled) { slowMode = enabled; }
void setSlowdownFactor(qreal factor) { slowdownFactor = factor; }
/*
this is used for updating the currentTime of all animations in case the pause
timer is active or, otherwise, only of the animation passed as parameter.
*/
static void ensureTimerUpdate();
/*
this will evaluate the need of restarting the pause timer in case there is still
some pause animations running.
*/
static void updateAnimationTimer();
void installAnimationDriver(QAnimationDriver *driver);
void uninstallAnimationDriver(QAnimationDriver *driver);
bool canUninstallAnimationDriver(QAnimationDriver *driver);
void restartAnimationTimer();
void updateAnimationsTime(qint64 timeStep);
//useful for profiling/debugging
int runningAnimationCount() { return animations.count(); }
protected:
void timerEvent(QTimerEvent *);
private:
friend class QDefaultAnimationDriver;
friend class QAnimationDriver;
QAnimationDriver *driver;
QDefaultAnimationDriver defaultDriver;
QBasicTimer animationTimer;
// timer used to delay the check if we should start/stop the animation timer
QBasicTimer startStopAnimationTimer;
ElapsedTimer time;
qint64 lastTick;
int timingInterval;
int currentAnimationIdx;
bool insideTick;
bool consistentTiming;
bool slowMode;
// This factor will be used to divide the DEFAULT_TIMER_INTERVAL at each tick
// when slowMode is enabled. Setting it to 0 or higher than DEFAULT_TIMER_INTERVAL (16)
// stops all animations.
qreal slowdownFactor;
// bool to indicate that only pause animations are active
bool isPauseTimerActive;
QList<QAbstractAnimation*> animations, animationsToStart;
// this is the count of running animations that are not a group neither a pause animation
int runningLeafAnimations;
QList<QAbstractAnimation*> runningPauseAnimations;
void registerRunningAnimation(QAbstractAnimation *animation);
void unregisterRunningAnimation(QAbstractAnimation *animation);
int closestPauseAnimationTimeToFinish();
};
QT_END_NAMESPACE
#endif //QT_NO_ANIMATION
#endif //QABSTRACTANIMATION_P_H
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