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<title>Biff (UNIX only)</title>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Biff (UNIX only)</h1>
<p>
Biff is a simple graphical program to indicate whether there is new
mail; it looks exactly like xbiff but is much shorter.
<p> <hr>
<p> Header file:
<p> <pre>/****************************************************************************
** $Id: qt/biff.h 3.0.2 edited Oct 12 12:18 $
**
** 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 <<a href="qwidget-h.html">qwidget.h</a>>
#include <<a href="qdatetime-h.html">qdatetime.h</a>>
#include <<a href="qpixmap-h.html">qpixmap.h</a>>
class Biff : public <a href="qwidget.html">QWidget</a>
{
<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
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>
<p> <hr>
<p> <em>biff.cpp</em> implements this custom widget. Note in particular
how two images (<em>hasmail_bmp_data</em> and <em>nomail_bmp_data</em>, both from
<em>bmp.cpp</em>) are included into the executable.
<p> <pre>/****************************************************************************
** $Id: qt/biff.cpp 3.0.2 edited Oct 12 12:18 $
**
** 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 <<a href="qstring-h.html">qstring.h</a>>
#include <<a href="qfileinfo-h.html">qfileinfo.h</a>>
#include <<a href="qpainter-h.html">qpainter.h</a>>
#include <unistd.h>
#include <stdlib.h>
#include "bmp.cpp"
<a name="f500"></a>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" ));
<a name="x1902"></a> if ( !fi.<a href="qfileinfo.html#exists">exists</a>() ) {
<a href="qstring.html">QString</a> s( "/var/spool/mail/" );
s += getlogin();
<a name="x1905"></a> fi.<a href="qfileinfo.html#setFile">setFile</a>( s );
}
if ( fi.<a href="qfileinfo.html#exists">exists</a>() ) {
<a name="x1901"></a> mailbox = fi.<a href="qfileinfo.html#absFilePath">absFilePath</a>();
<a href="qobject.html#startTimer">startTimer</a>( 1000 );
}
<a href="qwidget.html#setMinimumSize">setMinimumSize</a>( 48, 48 );
<a href="qwidget.html#setMaximumSize">setMaximumSize</a>( 48, 48 );
<a href="qwidget.html#resize">resize</a>( 48, 48 );
hasNewMail.loadFromData( hasmail_bmp_data, hasmail_bmp_len );
noNewMail.loadFromData( nomail_bmp_data, nomail_bmp_len );
gotMail = FALSE;
<a name="x1903"></a> lastModified = fi.<a href="qfileinfo.html#lastModified">lastModified</a>();
}
<a name="x1906"></a>void Biff::<a href="qobject.html#timerEvent">timerEvent</a>( <a href="qtimerevent.html">QTimerEvent</a> * )
{
<a href="qfileinfo.html">QFileInfo</a> fi( mailbox );
bool newState = ( fi.<a href="qfileinfo.html#lastModified">lastModified</a>() != lastModified &&
<a name="x1904"></a> fi.<a href="qfileinfo.html#lastModified">lastModified</a>() > fi.<a href="qfileinfo.html#lastRead">lastRead</a>() );
if ( newState != gotMail ) {
if ( gotMail )
lastModified = fi.<a href="qfileinfo.html#lastModified">lastModified</a>();
gotMail = newState;
<a href="qwidget.html#repaint">repaint</a>( FALSE );
}
}
void Biff::<a href="qwidget.html#paintEvent">paintEvent</a>( <a href="qpaintevent.html">QPaintEvent</a> * )
{
if ( gotMail )
<a href="qpaintdevice.html#bitBlt-2">bitBlt</a>( this, 0, 0, &hasNewMail );
else
<a href="qpaintdevice.html#bitBlt-2">bitBlt</a>( this, 0, 0, &noNewMail );
}
<a name="x1907"></a>void Biff::<a href="qwidget.html#mousePressEvent">mousePressEvent</a>( <a href="qmouseevent.html">QMouseEvent</a> * )
{
<a href="qfileinfo.html">QFileInfo</a> fi( mailbox );
lastModified = fi.<a href="qfileinfo.html#lastModified">lastModified</a>();
}
</pre>
<p> <hr>
<p> Main:
<p> <pre>/****************************************************************************
** $Id: qt/main.cpp 3.0.2 edited Oct 12 12:18 $
**
** 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 <<a href="qapplication-h.html">qapplication.h</a>>
#include "biff.h"
int main( int argc, char ** argv )
{
<a href="qapplication.html">QApplication</a> a( argc, argv );
Biff b;
<a name="x1910"></a> a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( &b );
b.<a href="qwidget.html#show">show</a>();
<a name="x1909"></a> return a.<a href="qapplication.html#exec">exec</a>();
}
</pre>
<p>See also <a href="examples.html">Examples</a>.
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