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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 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.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLSTATE_H
#define QMLSTATE_H
#include <QtCore/qobject.h>
#include <QtCore/QSequentialAnimationGroup>
#include <QtDeclarative/qfxglobal.h>
#include <QtDeclarative/qml.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class ActionEvent;
class QmlBindableValue;
class Action
{
public:
Action();
bool restore:1;
bool actionDone:1;
QmlMetaProperty property;
QVariant fromValue;
QVariant toValue;
QmlBindableValue *fromBinding;
QmlBindableValue *toBinding;
ActionEvent *event;
QObject *specifiedObject;
QString specifiedProperty;
void deleteFromBinding();
};
class ActionEvent
{
public:
virtual ~ActionEvent();
virtual QString name() const;
virtual void execute();
};
class QmlStateGroup;
class Q_DECLARATIVE_EXPORT QmlStateOperation : public QObject
{
Q_OBJECT
public:
QmlStateOperation(QObject *parent = 0)
: QObject(parent) {}
typedef QList<Action> ActionList;
virtual ActionList actions();
protected:
QmlStateOperation(QObjectPrivate &dd, QObject *parent = 0);
};
QML_DECLARE_TYPE(QmlStateOperation)
typedef QmlStateOperation::ActionList QmlStateActions;
class QmlTransition;
class QmlTransitionPrivate;
class QmlStatePrivate;
class Q_DECLARATIVE_EXPORT QmlState : public QObject
{
Q_OBJECT
Q_PROPERTY(QString name READ name WRITE setName)
Q_PROPERTY(QmlBindableValue *when READ when WRITE setWhen)
Q_PROPERTY(QString extends READ extends WRITE setExtends)
Q_PROPERTY(QmlList<QmlStateOperation *>* operations READ operations)
Q_CLASSINFO("DefaultProperty", "operations")
public:
QmlState(QObject *parent=0);
virtual ~QmlState();
QString name() const;
void setName(const QString &);
/*'when' is a QmlBindableValue to limit state changes oscillation
due to the unpredictable order of evaluation of bound expressions*/
bool isWhenKnown() const;
QmlBindableValue *when() const;
void setWhen(QmlBindableValue *);
QString extends() const;
void setExtends(const QString &);
QmlList<QmlStateOperation *> *operations();
QmlState &operator<<(QmlStateOperation *);
void apply(QmlStateGroup *, QmlTransition *, QmlState *revert);
void cancel();
QmlStateGroup *stateGroup() const;
void setStateGroup(QmlStateGroup *);
Q_SIGNALS:
void completed();
private:
Q_DECLARE_PRIVATE(QmlState)
Q_DISABLE_COPY(QmlState)
friend class QmlTransitionPrivate;
};
QML_DECLARE_TYPE(QmlState)
QT_END_NAMESPACE
QT_END_HEADER
#endif // QMLSTATE_H
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