/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
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** This file is part of the QtGui module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
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** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** 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
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** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QCHECKBOX_H
#define QCHECKBOX_H

#include <QtWidgets/qabstractbutton.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE


class QCheckBoxPrivate;
class QStyleOptionButton;

class Q_WIDGETS_EXPORT QCheckBox : public QAbstractButton
{
    Q_OBJECT

    Q_PROPERTY(bool tristate READ isTristate WRITE setTristate)

public:
    explicit QCheckBox(QWidget *parent=0);
    explicit QCheckBox(const QString &text, QWidget *parent=0);


    QSize sizeHint() const;
    QSize minimumSizeHint() const;

    void setTristate(bool y = true);
    bool isTristate() const;

    Qt::CheckState checkState() const;
    void setCheckState(Qt::CheckState state);

Q_SIGNALS:
    void stateChanged(int);

protected:
    bool event(QEvent *e);
    bool hitButton(const QPoint &pos) const;
    void checkStateSet();
    void nextCheckState();
    void paintEvent(QPaintEvent *);
    void mouseMoveEvent(QMouseEvent *);
    void initStyleOption(QStyleOptionButton *option) const;


private:
    Q_DECLARE_PRIVATE(QCheckBox)
    Q_DISABLE_COPY(QCheckBox)
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QCHECKBOX_H