/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QBUTTONGROUP_H
#define QBUTTONGROUP_H

#include <QtCore/qobject.h>

QT_BEGIN_NAMESPACE


#ifndef QT_NO_BUTTONGROUP

class QAbstractButton;
class QAbstractButtonPrivate;
class QButtonGroupPrivate;

class Q_WIDGETS_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 *, int id = -1);
    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);
    void buttonToggled(QAbstractButton *, bool);
    void buttonToggled(int, bool);

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

#endif // QT_NO_BUTTONGROUP

QT_END_NAMESPACE

#endif // QBUTTONGROUP_H
