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****************************************************************************/

#ifndef QCHECKBOX_H

#define QCHECKBOX_H

#include <QtGui/qabstractbutton.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QCheckBoxPrivate;

class QStyleOptionButton;

class Q_GUI_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;

    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;

#ifdef QT3_SUPPORT

public:

    enum ToggleState {

        Off =      Qt::Unchecked,

        NoChange = Qt::PartiallyChecked,

        On =       Qt::Checked

    };

    inline QT3_SUPPORT ToggleState state() const

        { return static_cast<QCheckBox::ToggleState>(static_cast<int>(checkState())); }

    inline QT3_SUPPORT void setState(ToggleState state)

        { setCheckState(static_cast<Qt::CheckState>(static_cast<int>(state))); }

    inline QT3_SUPPORT void setNoChange()

        { setCheckState(Qt::PartiallyChecked); }

    QT3_SUPPORT_CONSTRUCTOR QCheckBox(QWidget *parent, const char* name);

    QT3_SUPPORT_CONSTRUCTOR QCheckBox(const QString &text, QWidget *parent, const char* name);

#endif

private:

    Q_DECLARE_PRIVATE(QCheckBox)

    Q_DISABLE_COPY(QCheckBox)

};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QCHECKBOX_H