/****************************************************************************
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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****************************************************************************/

#ifndef QDECLARATIVESTATEGROUP_H
#define QDECLARATIVESTATEGROUP_H

#include "private/qdeclarativestate_p.h"

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

class QDeclarativeStateGroupPrivate;
class Q_DECLARATIVE_EXPORT QDeclarativeStateGroup : public QObject, public QDeclarativeParserStatus
{
    Q_OBJECT
    Q_INTERFACES(QDeclarativeParserStatus)
    Q_DECLARE_PRIVATE(QDeclarativeStateGroup)

    Q_PROPERTY(QString state READ state WRITE setState NOTIFY stateChanged)
    Q_PROPERTY(QDeclarativeListProperty<QDeclarativeState> states READ statesProperty DESIGNABLE false)
    Q_PROPERTY(QDeclarativeListProperty<QDeclarativeTransition> transitions READ transitionsProperty DESIGNABLE false)

public:
    QDeclarativeStateGroup(QObject * = 0);
    virtual ~QDeclarativeStateGroup();

    QString state() const;
    void setState(const QString &);

    QDeclarativeListProperty<QDeclarativeState> statesProperty();
    QList<QDeclarativeState *> states() const;

    QDeclarativeListProperty<QDeclarativeTransition> transitionsProperty();

    QDeclarativeState *findState(const QString &name) const;

    virtual void classBegin();
    virtual void componentComplete();
Q_SIGNALS:
    void stateChanged(const QString &);

private:
    friend class QDeclarativeState;
    bool updateAutoState();
    void removeState(QDeclarativeState *state);
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QDeclarativeStateGroup)

QT_END_HEADER

#endif // QDECLARATIVESTATEGROUP_H