# qlistbox.h

This is the verbatim text of the qlistbox.h include file. It is is provided only for illustration; the copyright remains with Troll Tech.

    /**********************************************************************
    ** $Id: qlistbox.h,v 2.17.2.3 1998/08/21 19:13:25 hanord Exp $
    **
    ** Definition of QListBox widget class
    **
    ** Created : 941121
    **
    ** Copyright (C) 1992-1999 Troll Tech AS.  All rights reserved.
    **
    ** This file is part of Qt Free Edition, version 1.45.
    **
    ** See the file LICENSE included in the distribution for the usage
    ** and distribution terms, or http://www.troll.no/free-license.html.
    **
    ** IMPORTANT NOTE: You may NOT copy this file or any part of it into
    ** your own programs or libraries.
    **
    ** Please see http://www.troll.no/pricing.html for information about
    ** Qt Professional Edition, which is this same library but with a
    ** license which allows creation of commercial/proprietary software.
    **
    *****************************************************************************/

    #ifndef QLISTBOX_H
    #define QLISTBOX_H

    #ifndef QT_H
    #include "qtableview.h"
    #include "qpixmap.h"
    #endif // QT_H

    #define LBI_Undefined   0                       // list box item types
    #define LBI_Text        1
    #define LBI_Pixmap      2
    #define LBI_UserDefined 1000

    class QStrList;
    class QLBItemList;

    class QListBox;

    class Q_EXPORT QListBoxItem
    {
    public:
        QListBoxItem();
        virtual ~QListBoxItem();

        virtual const char    *text()   const { return txt; }
        virtual const QPixmap *pixmap() const { return 0; }

        virtual int  height( const QListBox * ) const = 0;
        virtual int  width( const QListBox * )  const = 0;

    protected:
        virtual void paint( QPainter * ) = 0;
        void         setText( const char *text ) { txt = text; }

    private:
        QString txt;
        bool selected;

        friend class QListBox;

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

    class Q_EXPORT QListBoxText : public QListBoxItem
    {
    public:
        QListBoxText( const char * = 0 );
       ~QListBoxText();
        void  paint( QPainter * );
        int   height( const QListBox * ) const;
        int   width( const QListBox * )  const;
    private:        // Disabled copy constructor and operator=
    #if defined(Q_DISABLE_COPY)
        QListBoxText( const QListBoxText & );
        QListBoxText &operator=( const QListBoxText & );
    #endif
    };

    class Q_EXPORT QListBoxPixmap : public QListBoxItem
    {
    public:
        QListBoxPixmap( const QPixmap & );
       ~QListBoxPixmap();
        const QPixmap *pixmap() const { return &pm; }
    protected:
        void paint( QPainter * );
        int height( const QListBox * ) const;
        int width( const QListBox * ) const;
    private:
        QPixmap pm;
    private:        // Disabled copy constructor and operator=
    #if defined(Q_DISABLE_COPY)
        QListBoxPixmap( const QListBoxPixmap & );
        QListBoxPixmap &operator=( const QListBoxPixmap & );
    #endif
    };

    class Q_EXPORT QListBox : public QTableView             // list box widget
    {
        Q_OBJECT
    public:
        QListBox( QWidget *parent=0, const char *name=0, WFlags f=0  );
       ~QListBox();

        void        setFont( const QFont & );

        uint        count() const;

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

        void        insertItem( const QListBoxItem *, int index=-1 );
        void        insertItem( const char *text, int index=-1 );
        void        insertItem( const QPixmap &pixmap, int index=-1 );
        void        inSort( const QListBoxItem * );
        void        inSort( const char *text );

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

        const char *text( int index )       const;
        const QPixmap *pixmap( int index )  const;

        void        changeItem( const QListBoxItem *, int index );
        void        changeItem( const char *text, int index );
        void        changeItem( const QPixmap &pixmap, int index );

        bool        autoUpdate()    const;
        void        setAutoUpdate( bool );

        int         numItemsVisible() const;
        void        setFixedVisibleLines( int lines );

        int         currentItem()   const;
        void        setCurrentItem( int index );
        void        centerCurrentItem();
        int         topItem()       const;
        void        setTopItem( int index );
        void        setBottomItem( int index );

        bool        dragSelect()            const;
        void        setDragSelect( bool );
        bool        autoScroll()            const;
        void        setAutoScroll( bool );
        bool        autoScrollBar()         const;
        void        setAutoScrollBar( bool );
        bool        scrollBar()             const;
        void        setScrollBar( bool );
        bool        autoBottomScrollBar()   const;
        void        setAutoBottomScrollBar( bool );
        bool        bottomScrollBar()       const;
        void        setBottomScrollBar( bool );
        bool        smoothScrolling()       const;
        void        setSmoothScrolling( bool );

        int         itemHeight()            const;
        int         itemHeight( int index ) const;

        long        maxItemWidth() const;
        long        maxItemWidth(); // only for bin. compat

        bool        isMultiSelection() const;
        void        setMultiSelection( bool );

        void        setSelected( int, bool );
        bool        isSelected( int ) const;

        QSize       sizeHint() const;

    public slots:
        void        clearSelection();

    signals:
        void        highlighted( int index );
        void        selected( int index );
        void        highlighted( const char * );
        void        selected( const char * );

        void        selectionChanged();

    protected:
        QListBoxItem *item( int index ) const;
        bool        itemVisible( int index );

        int         cellHeight( int index = 0 );
        void        paintCell( QPainter *, int row, int col );

        void        mousePressEvent( QMouseEvent * );
        void        mouseReleaseEvent( QMouseEvent * );
        void        mouseDoubleClickEvent( QMouseEvent * );
        void        mouseMoveEvent( QMouseEvent * );
        void        keyPressEvent( QKeyEvent *e );
        void        focusInEvent( QFocusEvent *e );
        void        focusOutEvent( QFocusEvent *e );
        void        resizeEvent( QResizeEvent * );
        void        timerEvent( QTimerEvent * );

        int         findItem( int yPos ) const;
        bool        itemYPos( int index, int *yPos ) const;
        void        updateItem( int index, bool clear = TRUE );
        void        clearList();
        void        updateCellWidth();

        void        toggleCurrentItem();

    private:
        void        updateNumRows( bool );
        void        insert( const QListBoxItem *, int, bool );
        void        change( const QListBoxItem *lbi, int );
        void        setMaxItemWidth( int );
        void        ensureCurrentVisible( int = -1 );

        void        emitChangedSignal( bool );

        uint        doDrag          : 1;
        uint        doAutoScroll    : 1;
        uint        isTiming        : 1;
        uint        scrollDown      : 1;
        uint        stringsOnly     : 1;
        uint        multiSelect     : 1;
        uint        goingDown       : 1;
        int         current;
        QLBItemList *itemList;

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

    inline bool QListBox::isMultiSelection() const
    {
        return multiSelect;
    }

    #endif // QLISTBOX_H