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# qbutton.h

This is the verbatim text of the qbutton.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/src/widgets/qbutton.h   2.3.0   edited 2001-01-26 $
    **
    ** Definition of QButton widget class
    **
    ** Created : 940206
    **
    ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
    **
    ** This file is part of the widgets module of the Qt GUI Toolkit.
    **
    ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech AS of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
    **
    ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
    ** licenses may use this file in accordance with the Qt Commercial License
    ** Agreement provided with the Software.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    **   information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/qpl/ for QPL licensing information.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    **********************************************************************/

    #ifndef QBUTTON_H
    #define QBUTTON_H

    #ifndef QT_H
    #include "qwidget.h"
    #endif // QT_H

    #ifndef QT_NO_BUTTON

    class QButtonGroup;
    struct QButtonData;
    class QToolBar;

    class Q_EXPORT QButton : public QWidget
    {
        Q_OBJECT
        Q_ENUMS( ToggleType ToggleState )
        Q_PROPERTY( QString text READ text WRITE setText )
        Q_PROPERTY( QPixmap pixmap READ pixmap WRITE setPixmap )
        Q_PROPERTY( int accel READ accel WRITE setAccel )
        Q_PROPERTY( bool toggleButton READ isToggleButton )
        Q_PROPERTY( ToggleType toggleType READ toggleType )
        Q_PROPERTY( bool down READ isDown WRITE setDown DESIGNABLE false  )
        Q_PROPERTY( bool on READ isOn )
        Q_PROPERTY( ToggleState toggleState READ state )
        Q_PROPERTY( bool autoResize READ autoResize WRITE setAutoResize )
        Q_PROPERTY( bool autoRepeat READ autoRepeat WRITE setAutoRepeat )
        Q_PROPERTY( bool exclusiveToggle READ isExclusiveToggle )

    public:
        QButton( QWidget *parent=0, const char *name=0, WFlags f=0 );
       ~QButton();

        QString text() const;
        virtual void setText( const QString &);
        const QPixmap *pixmap() const;
        virtual void setPixmap( const QPixmap & );

        int         accel() const;
        virtual void        setAccel( int );

        bool        isToggleButton() const;

        enum ToggleType { SingleShot, Toggle, Tristate };
        ToggleType  toggleType() const;

        virtual void setDown( bool );
        bool        isDown() const;

        bool        isOn() const;

        enum ToggleState { Off, NoChange, On };
        ToggleState state() const;

        bool        autoResize() const; // obsolete
        virtual void setAutoResize( bool ); // obsolete

        bool        autoRepeat() const;
        virtual void setAutoRepeat( bool );

        bool        isExclusiveToggle() const;

        bool        focusNextPrevChild( bool next );

        QButtonGroup *group() const;

    public slots:
        void        animateClick();
        void        toggle();

    signals:
        void        pressed();
        void        released();
        void        clicked();
        void        toggled( bool );
        void        stateChanged( int );

    protected:
        void        setToggleButton( bool );
        virtual void        setToggleType( ToggleType );
        void        setOn( bool );
        virtual void        setState( ToggleState );

        virtual bool hitButton( const QPoint &pos ) const;
        virtual void drawButton( QPainter * );
        virtual void drawButtonLabel( QPainter * );

        void        keyPressEvent( QKeyEvent *);
        void        keyReleaseEvent( QKeyEvent *);
        void        mousePressEvent( QMouseEvent * );
        void        mouseReleaseEvent( QMouseEvent * );
        void        mouseMoveEvent( QMouseEvent * );
        void        paintEvent( QPaintEvent * );
        void        focusInEvent( QFocusEvent * );
        void        focusOutEvent( QFocusEvent * );

        void        enabledChange( bool );

    private slots:
        void        animateTimeout();
        void        autoRepeatTimeout();

    private:
        QString     btext;
        QPixmap    *bpixmap;
        uint        toggleTyp       : 2;
        uint        buttonDown      : 1;
        uint        stat            : 2;
        uint        mlbDown         : 1;
        uint        autoresize      : 1;
        uint        animation       : 1;
        uint        repeat          : 1;
        QButtonData *d;

        friend class QButtonGroup;
        friend class QToolBar;
        void          ensureData();
        virtual void setGroup( QButtonGroup* );
        QTimer       *timer();
        void        nextState();

    private:        // Disabled copy constructor and operator=
    #if defined(Q_DISABLE_COPY)
        QButton( const QButton & );
        QButton &operator=( const QButton & );
    #endif
    };

    inline QString QButton::text() const
    {
        return btext;
    }

    inline const QPixmap *QButton::pixmap() const
    {
        return bpixmap;
    }

    inline bool QButton::isToggleButton() const
    {
        return toggleTyp != SingleShot;
    }

    inline  bool QButton::isDown() const
    {
        return buttonDown;
    }

    inline bool QButton::isOn() const
    {
        return stat != Off;
    }

    inline bool QButton::autoResize() const // obsolete
    {
        return autoresize;
    }

    inline bool QButton::autoRepeat() const
    {
        return repeat;
    }

    inline QButton::ToggleState QButton::state() const
    {
        return ToggleState(stat);
    }

    inline void QButton::setToggleButton( bool b )
    {
        setToggleType( b ? Toggle : SingleShot );
    }

    inline void QButton::setOn( bool y )
    {
        setState( y ? On : Off );
    }

    inline QButton::ToggleType QButton::toggleType() const
    {
        return ToggleType(toggleTyp);
    }

    #endif // QT_NO_BUTTON

    #endif // QBUTTON_H