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/****************************************************************************
**
** 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 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 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 QMLTIMELINE_H
#define QMLTIMELINE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/QObject>
#include <QtCore/QAbstractAnimation>
QT_BEGIN_NAMESPACE
class QEasingCurve;
class QmlTimeLineValue;
class QmlTimeLineEvent;
struct QmlTimeLinePrivate;
class QmlTimeLineObject;
class Q_DECLARATIVE_EXPORT QmlTimeLine : public QAbstractAnimation
{
Q_OBJECT
public:
QmlTimeLine(QObject *parent = 0);
~QmlTimeLine();
enum SyncMode { LocalSync, GlobalSync };
SyncMode syncMode() const;
void setSyncMode(SyncMode);
void pause(QmlTimeLineObject &, int);
void execute(const QmlTimeLineEvent &);
void set(QmlTimeLineValue &, qreal);
int accel(QmlTimeLineValue &, qreal velocity, qreal accel);
int accel(QmlTimeLineValue &, qreal velocity, qreal accel, qreal maxDistance);
int accelDistance(QmlTimeLineValue &, qreal velocity, qreal distance);
void move(QmlTimeLineValue &, qreal destination, int time = 500);
void move(QmlTimeLineValue &, qreal destination, const QEasingCurve &, int time = 500);
void moveBy(QmlTimeLineValue &, qreal change, int time = 500);
void moveBy(QmlTimeLineValue &, qreal change, const QEasingCurve &, int time = 500);
void sync();
void setSyncPoint(int);
int syncPoint() const;
void sync(QmlTimeLineValue &);
void sync(QmlTimeLineValue &, QmlTimeLineValue &);
void reset(QmlTimeLineValue &);
void complete();
void clear();
bool isActive() const;
int time() const;
virtual int duration() const;
Q_SIGNALS:
void updated();
void completed();
protected:
virtual void updateCurrentTime(int);
private:
void remove(QmlTimeLineObject *);
friend class QmlTimeLineObject;
friend struct QmlTimeLinePrivate;
QmlTimeLinePrivate *d;
};
class Q_DECLARATIVE_EXPORT QmlTimeLineObject
{
public:
QmlTimeLineObject();
virtual ~QmlTimeLineObject();
protected:
friend class QmlTimeLine;
friend struct QmlTimeLinePrivate;
QmlTimeLine *_t;
};
class Q_DECLARATIVE_EXPORT QmlTimeLineValue : public QmlTimeLineObject
{
public:
QmlTimeLineValue(qreal v = 0.) : _v(v) {}
virtual qreal value() const { return _v; }
virtual void setValue(qreal v) { _v = v; }
QmlTimeLine *timeLine() const { return _t; }
operator qreal() const { return _v; }
QmlTimeLineValue &operator=(qreal v) { setValue(v); return *this; }
private:
friend class QmlTimeLine;
friend struct QmlTimeLinePrivate;
qreal _v;
};
class Q_DECLARATIVE_EXPORT QmlTimeLineEvent
{
public:
QmlTimeLineEvent();
QmlTimeLineEvent(const QmlTimeLineEvent &o);
template<class T, void (T::*method)()>
QmlTimeLineEvent(QmlTimeLineObject *b, T *c)
{
d0 = &callFunc<T, method>;
d1 = (void *)c;
d2 = b;
}
template<class T, void (T::*method)()>
static QmlTimeLineEvent timeLineEvent(QmlTimeLineObject *b, T *c)
{
QmlTimeLineEvent rv;
rv.d0 = &callFunc<T, method>;
rv.d1 = (void *)c;
rv.d2 = b;
return rv;
}
QmlTimeLineEvent &operator=(const QmlTimeLineEvent &o);
void execute() const;
QmlTimeLineObject *eventObject() const;
private:
typedef void (*CallFunc)(void *c);
template <class T, void (T::*method)()>
static void callFunc(void *c)
{
T *cls = (T *)c;
(cls->*method)();
}
CallFunc d0;
void *d1;
QmlTimeLineObject *d2;
};
template<class T>
class QmlTimeLineValueProxy : public QmlTimeLineValue
{
public:
QmlTimeLineValueProxy(T *cls, void (T::*func)(qreal), qreal v = 0.)
: QmlTimeLineValue(v), _class(cls), _setFunctionReal(func), _setFunctionInt(0)
{
Q_ASSERT(_class);
}
QmlTimeLineValueProxy(T *cls, void (T::*func)(int), qreal v = 0.)
: QmlTimeLineValue(v), _class(cls), _setFunctionReal(0), _setFunctionInt(func)
{
Q_ASSERT(_class);
}
virtual void setValue(qreal v)
{
QmlTimeLineValue::setValue(v);
if (_setFunctionReal) (_class->*_setFunctionReal)(v);
else if (_setFunctionInt) (_class->*_setFunctionInt)((int)v);
}
private:
T *_class;
void (T::*_setFunctionReal)(qreal);
void (T::*_setFunctionInt)(int);
};
QT_END_NAMESPACE
#endif
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