/****************************************************************************

**

** Copyright (C) 2009 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_H

#define QABSTRACTANIMATION_H

#include <QtCore/qobject.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Core)

#ifndef QT_NO_ANIMATION

class QAnimationGroup;

class QSequentialAnimationGroup;

class QAbstractAnimationPrivate;

class Q_CORE_EXPORT QAbstractAnimation : public QObject

{

    Q_OBJECT

    Q_PROPERTY(State state READ state NOTIFY stateChanged)

    Q_PROPERTY(int loopCount READ loopCount WRITE setLoopCount)

    Q_PROPERTY(int currentTime READ currentTime WRITE setCurrentTime)

    Q_PROPERTY(int currentLoop READ currentLoop NOTIFY currentLoopChanged)

    Q_PROPERTY(Direction direction READ direction WRITE setDirection NOTIFY directionChanged)

    Q_PROPERTY(int duration READ duration)

public:

    enum Direction {

        Forward,

        Backward

    };

    enum State {

        Stopped,

        Paused,

        Running

    };

    enum DeletionPolicy {

        KeepWhenStopped = 0,

        DeleteWhenStopped

    };

    QAbstractAnimation(QObject *parent = 0);

    virtual ~QAbstractAnimation();

    State state() const;

    QAnimationGroup *group() const;

    Direction direction() const;

    void setDirection(Direction direction);

    int loopCount() const;

    void setLoopCount(int loopCount);

    int currentLoop() const;

    virtual int duration() const = 0;

    int totalDuration() const;

    int currentTime() const;

Q_SIGNALS:

    void finished();

    void stateChanged(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);

    void currentLoopChanged(int currentLoop);

    void directionChanged(QAbstractAnimation::Direction);

public Q_SLOTS:

    void start(QAbstractAnimation::DeletionPolicy policy = KeepWhenStopped);

    void pause();

    void resume();

    void stop();

    void setCurrentTime(int msecs);

protected:

    QAbstractAnimation(QAbstractAnimationPrivate &dd, QObject *parent = 0);

    bool event(QEvent *event);

    virtual void updateCurrentTime(int currentTime) = 0;

    virtual void updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);

    virtual void updateDirection(QAbstractAnimation::Direction direction);

private:

    Q_DISABLE_COPY(QAbstractAnimation)

    Q_DECLARE_PRIVATE(QAbstractAnimation)

};

#endif //QT_NO_ANIMATION

QT_END_NAMESPACE

QT_END_HEADER

#endif // QABSTRACTANIMATION_H