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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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Qt Toolkit - biff/main.cpp example file
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<h1 align=center>Biff (UNIX only)</h1><br clear="all">

  Biff is a simple graphical program to indicate whether there is new
  mail; it looks exactly like xbiff but is much shorter.

  <hr>

  Header file: <pre>/****************************************************************************
** &#36;Id&#58; qt/examples/biff/biff.h   2.3.2   edited 2001-01-26 $
**
** Copyright (C) 1992-2000 Trolltech 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 BIFF_H
#define BIFF_H

#include &lt;<a href="qwidget-h.html">qwidget.h</a>&gt;
#include &lt;<a href="qdatetime-h.html">qdatetime.h</a>&gt;
#include &lt;<a href="qpixmap-h.html">qpixmap.h</a>&gt;

class Biff : public QWidget
{
    Q_OBJECT
public:
    Biff( <a href="qwidget.html">QWidget</a> *parent=0, const char *name=0 );

protected:
    void        timerEvent( <a href="qtimerevent.html">QTimerEvent</a> * );
    void        paintEvent( <a href="qpaintevent.html">QPaintEvent</a> * );
    void        mousePressEvent( <a href="qmouseevent.html">QMouseEvent</a> * );

private:
    <a href="qdatetime.html">QDateTime</a>   lastModified;
    <a href="qpixmap.html">QPixmap</a>     hasNewMail;
    <a href="qpixmap.html">QPixmap</a>     noNewMail;
    <a href="qstring.html">QString</a>     mailbox;
    bool        gotMail;
};

#endif // BIFF_H
</pre>


  <hr>

  biff.cpp implements this custom widget.  Note in particular
  how two images (hasmail_bmp_data and nomail_bmp_data, both from
  bmp.cpp) are included into the executable. <pre>/****************************************************************************
** &#36;Id&#58; qt/examples/biff/biff.cpp   2.3.2   edited 2001-01-26 $
**
** Copyright (C) 1992-2000 Trolltech 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 "biff.h"
#include &lt;<a href="qstring-h.html">qstring.h</a>&gt;
#include &lt;<a href="qfileinfo-h.html">qfileinfo.h</a>&gt;
#include &lt;<a href="qpainter-h.html">qpainter.h</a>&gt;

#include &lt;unistd.h&gt;
#include &lt;stdlib.h&gt;

#include "bmp.cpp"

Biff::Biff( <a href="qwidget.html">QWidget</a> *parent, const char *name )
    : <a href="qwidget.html">QWidget</a>( parent, name, WType_Modal )
{
    <a href="qfileinfo.html">QFileInfo</a> fi = QString(getenv( "MAIL" ));
    if ( !fi.<a href="qfileinfo.html#a1625c">exists</a>() ) {
        <a href="qstring.html">QString</a> s( "/var/spool/mail/" );
        s += getlogin();
        fi.<a href="qfileinfo.html#4900f7">setFile</a>( s );
    }

    if ( fi.<a href="qfileinfo.html#a1625c">exists</a>() ) {
        mailbox = fi.<a href="qfileinfo.html#b8684f">absFilePath</a>();
        <a href="qobject.html#4c6b67">startTimer</a>( 1000 );
    }

    <a href="qwidget.html#c0b5fb">setMinimumSize</a>( 48, 48 );
    <a href="qwidget.html#c78dce">setMaximumSize</a>( 48, 48 );
    <a href="qwidget.html#8fcbbe">resize</a>( 48, 48 );

    hasNewMail.loadFromData( hasmail_bmp_data, hasmail_bmp_len );
    noNewMail.loadFromData( nomail_bmp_data, nomail_bmp_len );

    gotMail = FALSE;
    lastModified = fi.<a href="qfileinfo.html#7187bd">lastModified</a>();
}

void <a name="378"></a>Biff::timerEvent( <a href="qtimerevent.html">QTimerEvent</a> * )
{
    <a href="qfileinfo.html">QFileInfo</a> fi( mailbox );
    bool newState = ( fi.<a href="qfileinfo.html#7187bd">lastModified</a>() != lastModified &amp;&amp;
                      fi.<a href="qfileinfo.html#7187bd">lastModified</a>() &gt; fi.<a href="qfileinfo.html#258b1f">lastRead</a>() );
    if ( newState != gotMail ) {
        if ( gotMail )
            lastModified = fi.<a href="qfileinfo.html#7187bd">lastModified</a>();
        gotMail = newState;
        <a href="qwidget.html#7569b1">repaint</a>( FALSE );
    }
}

void <a name="379"></a>Biff::paintEvent( <a href="qpaintevent.html">QPaintEvent</a> * )
{
    if ( gotMail )
        <a href="qpaintdevice.html#35ae2e">bitBlt</a>( this, 0, 0, &amp;hasNewMail );
    else
        <a href="qpaintdevice.html#35ae2e">bitBlt</a>( this, 0, 0, &amp;noNewMail );
}

void <a name="380"></a>Biff::mousePressEvent( <a href="qmouseevent.html">QMouseEvent</a> * )
{
    <a href="qfileinfo.html">QFileInfo</a> fi( mailbox );
    lastModified = fi.<a href="qfileinfo.html#7187bd">lastModified</a>();
}
</pre>


  <hr>

  Main:
<pre>/****************************************************************************
** &#36;Id&#58; qt/examples/biff/main.cpp   2.3.2   edited 2001-01-26 $
**
** Copyright (C) 1992-2000 Trolltech 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 &lt;<a name="qapplication.h"></a><a href="qapplication-h.html">qapplication.h</a>&gt;
#include "biff.h"

int main( int argc, char ** argv )
{
    <a name="QApplication"></a><a href="qapplication.html">QApplication</a> a( argc, argv );
    Biff b;
    a.<a name="setMainWidget"></a><a href="qapplication.html#7ad759">setMainWidget</a>( &amp;b );
    b.<a name="show"></a><a href="qwidget.html#200ee5">show</a>();
    return a.<a name="exec"></a><a href="qapplication.html#84c7bf">exec</a>();
}
</pre>
<p><address><hr><div align="center">
<table width="100%" cellspacing="0" border="0"><tr>
<td>Copyright  2001 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align="right"><div align="right">Qt version 2.3.2</div>
</table></div></address></body></html>