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# qcombobox.h

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

    /**********************************************************************
    ** $Id: qt/src/widgets/qcombobox.h   2.3.7   edited 2001-01-26 $
    **
    ** Definition of QComboBox class
    **
    ** Created : 950426
    **
    ** 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 QCOMBOBOX_H
    #define QCOMBOBOX_H

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

    #ifndef QT_NO_COMBOBOX

    struct QComboData;
    class QStrList;
    class QStringList;
    class QLineEdit;
    class QValidator;
    class QListBox;

    class Q_EXPORT QComboBox : public QWidget
    {
        Q_OBJECT
        Q_ENUMS( Policy )
        Q_PROPERTY( bool editable READ editable WRITE setEditable )
        Q_PROPERTY( int count READ count )
        Q_PROPERTY( QString currentText READ currentText )
        Q_PROPERTY( int currentItem READ currentItem WRITE setCurrentItem )
        Q_PROPERTY( bool autoResize READ autoResize WRITE setAutoResize )
        Q_PROPERTY( int sizeLimit READ sizeLimit WRITE setSizeLimit )
        Q_PROPERTY( int maxCount READ maxCount WRITE setMaxCount )
        Q_PROPERTY( Policy insertionPolicy READ insertionPolicy WRITE setInsertionPolicy )
        Q_PROPERTY( bool autoCompletion READ autoCompletion WRITE setAutoCompletion )
        Q_PROPERTY( bool duplicatesEnabled READ duplicatesEnabled WRITE setDuplicatesEnabled )

    public:
        QComboBox( QWidget *parent=0, const char *name=0 );
        QComboBox( bool rw, QWidget *parent=0, const char *name=0 );
       ~QComboBox();

        int         count() const;

        void        insertStringList( const QStringList &, int index=-1 );
        void        insertStrList( const QStrList &, int index=-1 );
        void        insertStrList( const QStrList *, int index=-1 );
        void        insertStrList( const char **, int numStrings=-1, int index=-1);

        void        insertItem( const QString &text, int index=-1 );
        void        insertItem( const QPixmap &pixmap, int index=-1 );
        void        insertItem( const QPixmap &pixmap, const QString &text, int index=-1 );

        void        removeItem( int index );
        void        clear();

        QString currentText() const;
        QString text( int index ) const;
        const QPixmap *pixmap( int index ) const;

        void        changeItem( const QString &text, int index );
        void        changeItem( const QPixmap &pixmap, int index );
        void        changeItem( const QPixmap &pixmap, const QString &text, int index );

        int         currentItem() const;
        virtual void        setCurrentItem( int index );

        bool        autoResize()    const;
        virtual void        setAutoResize( bool );
        QSize       sizeHint() const;
        virtual QSizePolicy sizePolicy() const;

        virtual void        setBackgroundColor( const QColor & );
        virtual void        setPalette( const QPalette & );
        virtual void        setFont( const QFont & );
        virtual void        setEnabled( bool );

        virtual void        setSizeLimit( int );
        int         sizeLimit() const;

        virtual void        setMaxCount( int );
        int         maxCount() const;

        enum Policy { NoInsertion, AtTop, AtCurrent, AtBottom,
                      AfterCurrent, BeforeCurrent };

        virtual void        setInsertionPolicy( Policy policy );
        Policy      insertionPolicy() const;

        virtual void        setValidator( const QValidator * );
        const QValidator * validator() const;

        virtual void        setListBox( QListBox * );
        QListBox *  listBox() const;

        QLineEdit*  lineEdit() const;

        virtual void        setAutoCompletion( bool );
        bool        autoCompletion() const;

        bool        eventFilter( QObject *object, QEvent *event );

        void        setDuplicatesEnabled( bool enable );
        bool        duplicatesEnabled() const;

        bool        editable() const;
        void        setEditable( bool );

    public slots:
        void        clearValidator();
        void        clearEdit();
        virtual void        setEditText( const QString &);

    signals:
        void        activated( int index );
        void        highlighted( int index );
        void        activated( const QString &);
        void        highlighted( const QString &);
        void        textChanged( const QString &);

    private slots:
        void        internalActivate( int );
        void        internalHighlight( int );
        void        internalClickTimeout();
        void        returnPressed();

    protected:
        void        paintEvent( QPaintEvent * );
        void        resizeEvent( QResizeEvent * );
        void        mousePressEvent( QMouseEvent * );
        void        mouseMoveEvent( QMouseEvent * );
        void        mouseReleaseEvent( QMouseEvent * );
        void        mouseDoubleClickEvent( QMouseEvent * );
        void        keyPressEvent( QKeyEvent *e );
        void        focusInEvent( QFocusEvent *e );
        void        styleChange( QStyle& );

        void        popup(); //#### virtual in 3.0
        void        updateMask();

    private:
        void        setUpListBox();
        void        setUpLineEdit();
        void        popDownListBox();
        void        reIndex();
        void        currentChanged();
        QRect       arrowRect() const;
        bool        getMetrics( int *dist, int *buttonW, int *buttonH ) const;

        QComboData  *d;

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

    #endif // QT_NO_COMBOBOX

    #endif // QCOMBOBOX_H