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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui 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 http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#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