/****************************************************************************
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the QtGui module of the Qt Toolkit.
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** 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
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****************************************************************************/

#ifndef QBUTTONGROUP_H
#define QBUTTONGROUP_H

#include <QtCore/qobject.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifndef QT_NO_BUTTONGROUP

class QAbstractButton;
class QAbstractButtonPrivate;
class QButtonGroupPrivate;

class Q_GUI_EXPORT QButtonGroup : public QObject
{
    Q_OBJECT

    Q_PROPERTY(bool exclusive READ exclusive WRITE setExclusive)
public:
    explicit QButtonGroup(QObject *parent = 0);
    ~QButtonGroup();

    void setExclusive(bool);
    bool exclusive() const;

    void addButton(QAbstractButton *);
    void addButton(QAbstractButton *, int id);
    void removeButton(QAbstractButton *);

    QList<QAbstractButton*> buttons() const;

    QAbstractButton * checkedButton() const;
    // no setter on purpose!

    QAbstractButton *button(int id) const;
    void setId(QAbstractButton *button, int id);
    int id(QAbstractButton *button) const;
    int checkedId() const;

Q_SIGNALS:
    void buttonClicked(QAbstractButton *);
    void buttonClicked(int);
    void buttonPressed(QAbstractButton *);
    void buttonPressed(int);
    void buttonReleased(QAbstractButton *);
    void buttonReleased(int);

#ifdef QT3_SUPPORT
public:
    inline QT3_SUPPORT void insert(QAbstractButton *b) { addButton(b); }
    inline QT3_SUPPORT void remove(QAbstractButton *b) { removeButton(b); }
#endif

private:
    Q_DISABLE_COPY(QButtonGroup)
    Q_DECLARE_PRIVATE(QButtonGroup)
    friend class QAbstractButton;
    friend class QAbstractButtonPrivate;
};

#endif // QT_NO_BUTTONGROUP

QT_END_NAMESPACE

QT_END_HEADER

#endif // QBUTTONGROUP_H
