qcombobox.h

/**********************************************************************
** $Id: qcombobox.h,v 2.28.2.2 1998/08/21 19:13:25 hanord Exp $
**
** Definition of QComboBox class
**
** Created : 950426
**
** Copyright (C) 1992-1998 Troll Tech AS.  All rights reserved.
**
** This file is part of Qt Free Edition, version 1.42.
**
** 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 QCOMBOBOX_H
#define QCOMBOBOX_H

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


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


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

    int         count() const;

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

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

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

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

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

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

    bool        autoResize()    const;
    void        setAutoResize( bool );
    QSize       sizeHint() const;

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

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

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

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

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

    void        setStyle( GUIStyle );

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

    void        setListBox( QListBox * );
    QListBox *  listBox() const;
    
    void        setAutoCompletion( bool );
    bool        autoCompletion() const;

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

public slots:
    void        clearValidator();
    void        clearEdit();
    void        setEditText( const char * );

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

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        popup();

private:
    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 // QCOMBOBOX_H