A Directory Browser

/****************************************************************************
** $Id: dirview.h,v 1.5 1998/05/21 19:24:51 agulbra Exp $
**
** Copyright (C) 1992-1998 Troll Tech AS.  All rights reserved.
**
** This file is part of an example program for Qt.  This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/

#ifndef DIRVIEW_H
#define DIRVIEW_H

#include <qlistview.h>
#include <qstring.h>
#include <qfile.h>

class Directory: public QListViewItem
{
public:
    Directory( QListView * parent );
    Directory( Directory * parent, const char * filename );

    const char * text( int column ) const;

    QString fullName();

    void setOpen( bool );
    void setup();

private:
    QFile f;
    Directory * p;
    bool readable;
};

#endif

/****************************************************************************
** $Id: dirview.cpp,v 1.9 1998/06/16 11:39:32 warwick Exp $
**
** Copyright (C) 1992-1998 Troll Tech AS.  All rights reserved.
**
** This file is part of an example program for Qt.  This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/

#include "dirview.h"
#include <qdir.h>
#include <qfile.h>
#include <qfileinfo.h>

Directory::Directory( Directory * parent, const char * filename )
    : QListViewItem( parent ), f(filename )
{
    p = parent;
    readable = TRUE;
}

Directory::Directory( QListView * parent )
    : QListViewItem( parent ), f("/")
{
    p = 0;
    readable = TRUE;
}

void Directory::setOpen( bool o )
{
    if ( o && !childCount() ) {
        QString s( fullName() );
        QDir thisDir( s );
        if ( !thisDir.isReadable() ) {
            readable = FALSE;
            return;
        }

        const QFileInfoList * files = thisDir.entryInfoList();
        if ( files ) {
            QFileInfoListIterator it( *files );
            QFileInfo * f;
            while( (f=it.current()) != 0 ) {
                ++it;
                if ( f->fileName() == "." || f->fileName() == ".." )
                    ; // nothing
                else if ( f->isSymLink() )
                    new QListViewItem( this, (const char *)f->fileName(),
                                       "Symbolic Link", 0 );
                else if ( f->isDir() )
                    new Directory( this, f->fileName() );
                else
                    new QListViewItem( this, (const char *)f->fileName(),
                                       f->isFile() ? "File" : "Special", 0 );
            }
        }
    }
    QListViewItem::setOpen( o );
}

void Directory::setup()
{
    setExpandable( TRUE );
    QListViewItem::setup();
}

QString Directory::fullName()
{
    QString s;
    if ( p ) {
        s = p->fullName();
        s.append( f.name() );
        s.append( "/" );
    } else {
        s = "/";
    }
    return s;
}

const char * Directory::text( int column ) const
{
    if ( column == 0 )
        return f.name();
    else if ( readable )
        return "Directory";
    else
        return "Unreadable Directory";
}