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199 lines
7.2 KiB
199 lines
7.2 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/biff/biff.doc:4 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Biff (UNIX only)</title>
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<style type="text/css"><!--
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body { background: #ffffff; color: black; }
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--></style>
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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| <a href="classes.html">
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Annotated</font></a>
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<font color="#004faf">Grouped Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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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>
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<p>
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Biff is a simple graphical program to indicate whether there is new
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mail; it looks exactly like xbiff but is much shorter.
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<p> <hr>
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<p> Header file:
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<p> <pre>/****************************************************************************
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** $Id: qt/biff.h 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#ifndef BIFF_H
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#define BIFF_H
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#include <<a href="qwidget-h.html">qwidget.h</a>>
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#include <<a href="qdatetime-h.html">qdatetime.h</a>>
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#include <<a href="qpixmap-h.html">qpixmap.h</a>>
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class Biff : public <a href="qwidget.html">QWidget</a>
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{
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<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
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public:
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Biff( <a href="qwidget.html">QWidget</a> *parent=0, const char *name=0 );
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protected:
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void timerEvent( <a href="qtimerevent.html">QTimerEvent</a> * );
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void paintEvent( <a href="qpaintevent.html">QPaintEvent</a> * );
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void mousePressEvent( <a href="qmouseevent.html">QMouseEvent</a> * );
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private:
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<a href="qdatetime.html">QDateTime</a> lastModified;
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<a href="qpixmap.html">QPixmap</a> hasNewMail;
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<a href="qpixmap.html">QPixmap</a> noNewMail;
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<a href="qstring.html">QString</a> mailbox;
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bool gotMail;
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};
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#endif // BIFF_H
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</pre>
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<p> <hr>
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<p> <em>biff.cpp</em> implements this custom widget. Note in particular
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how two images (<em>hasmail_bmp_data</em> and <em>nomail_bmp_data</em>, both from
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<em>bmp.cpp</em>) are included into the executable.
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<p> <pre>/****************************************************************************
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** $Id: qt/biff.cpp 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include "biff.h"
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#include <<a href="qstring-h.html">qstring.h</a>>
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#include <<a href="qfileinfo-h.html">qfileinfo.h</a>>
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#include <<a href="qpainter-h.html">qpainter.h</a>>
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#include <unistd.h>
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#include <stdlib.h>
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#include "bmp.cpp"
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<a name="f527"></a>Biff::Biff( <a href="qwidget.html">QWidget</a> *parent, const char *name )
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: <a href="qwidget.html">QWidget</a>( parent, name, WShowModal | WType_Dialog )
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{
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<a href="qfileinfo.html">QFileInfo</a> fi = QString(getenv( "MAIL" ));
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<a name="x1955"></a> if ( !fi.<a href="qfileinfo.html#exists">exists</a>() ) {
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<a href="qstring.html">QString</a> s( "/var/spool/mail/" );
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s += getlogin();
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<a name="x1958"></a> fi.<a href="qfileinfo.html#setFile">setFile</a>( s );
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}
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if ( fi.<a href="qfileinfo.html#exists">exists</a>() ) {
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<a name="x1954"></a> mailbox = fi.<a href="qfileinfo.html#absFilePath">absFilePath</a>();
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<a href="qobject.html#startTimer">startTimer</a>( 1000 );
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}
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<a href="qwidget.html#setMinimumSize">setMinimumSize</a>( 48, 48 );
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<a href="qwidget.html#setMaximumSize">setMaximumSize</a>( 48, 48 );
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<a href="qwidget.html#resize">resize</a>( 48, 48 );
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hasNewMail.loadFromData( hasmail_bmp_data, hasmail_bmp_len );
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noNewMail.loadFromData( nomail_bmp_data, nomail_bmp_len );
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gotMail = FALSE;
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<a name="x1956"></a> lastModified = fi.<a href="qfileinfo.html#lastModified">lastModified</a>();
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}
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<a name="x1959"></a>void Biff::<a href="qobject.html#timerEvent">timerEvent</a>( <a href="qtimerevent.html">QTimerEvent</a> * )
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{
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<a href="qfileinfo.html">QFileInfo</a> fi( mailbox );
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bool newState = ( fi.<a href="qfileinfo.html#lastModified">lastModified</a>() != lastModified &&
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<a name="x1957"></a> fi.<a href="qfileinfo.html#lastModified">lastModified</a>() > fi.<a href="qfileinfo.html#lastRead">lastRead</a>() );
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if ( newState != gotMail ) {
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if ( gotMail )
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lastModified = fi.<a href="qfileinfo.html#lastModified">lastModified</a>();
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gotMail = newState;
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<a href="qwidget.html#repaint">repaint</a>( FALSE );
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}
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}
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void Biff::<a href="qwidget.html#paintEvent">paintEvent</a>( <a href="qpaintevent.html">QPaintEvent</a> * )
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{
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if ( gotMail )
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<a href="qimage.html#bitBlt">bitBlt</a>( this, 0, 0, &hasNewMail );
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else
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<a href="qimage.html#bitBlt">bitBlt</a>( this, 0, 0, &noNewMail );
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}
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<a name="x1960"></a>void Biff::<a href="qwidget.html#mousePressEvent">mousePressEvent</a>( <a href="qmouseevent.html">QMouseEvent</a> * )
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{
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<a href="qfileinfo.html">QFileInfo</a> fi( mailbox );
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lastModified = fi.<a href="qfileinfo.html#lastModified">lastModified</a>();
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}
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</pre>
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<p> <hr>
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<p> Main:
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<p> <pre>/****************************************************************************
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** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include <<a href="qapplication-h.html">qapplication.h</a>>
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#include "biff.h"
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int main( int argc, char ** argv )
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{
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<a href="qapplication.html">QApplication</a> a( argc, argv );
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Biff b;
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a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( &b );
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b.<a href="qwidget.html#show">show</a>();
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return a.<a href="qapplication.html#exec">exec</a>();
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}
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</pre>
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<p>See also <a href="examples.html">Examples</a>.
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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