common/include/QtWidgets/qbuttongroup.h

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#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