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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (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 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.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef CUSTOMPROPERTYANIMATION_H
#define CUSTOMPROPERTYANIMATION_H
#include <QtCore/qvariantanimation.h>
class QGraphicsItem;
struct AbstractProperty
{
virtual QVariant read() const = 0;
virtual void write(const QVariant &value) = 0;
};
class CustomPropertyAnimation : public QVariantAnimation
{
Q_OBJECT
template <typename Target, typename T, typename T2 = T>
class MemberFunctionProperty : public AbstractProperty
{
public:
typedef T (Target::*Getter)(void) const;
typedef void (Target::*Setter)(T2);
MemberFunctionProperty(Target* target, Getter getter, Setter setter)
: m_target(target), m_getter(getter), m_setter(setter) {}
virtual void write(const QVariant &value)
{
if (m_setter) (m_target->*m_setter)(qVariantValue<T>(value));
}
virtual QVariant read() const
{
if (m_getter) return qVariantFromValue<T>((m_target->*m_getter)());
return QVariant();
}
private:
Target *m_target;
Getter m_getter;
Setter m_setter;
};
public:
CustomPropertyAnimation(QObject *parent = 0);
~CustomPropertyAnimation();
template<class Target, typename T>
void setMemberFunctions(Target* target, T (Target::*getter)() const, void (Target::*setter)(const T& ))
{
setProperty(new MemberFunctionProperty<Target, T, const T&>(target, getter, setter));
}
template<class Target, typename T>
void setMemberFunctions(Target* target, T (Target::*getter)() const, void (Target::*setter)(T))
{
setProperty(new MemberFunctionProperty<Target, T>(target, getter, setter));
}
void updateCurrentValue(const QVariant &value);
void updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);
void setProperty(AbstractProperty *animProp);
private:
Q_DISABLE_COPY(CustomPropertyAnimation);
AbstractProperty *animProp;
};
#endif // CUSTOMPROPERTYANIMATION_H
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