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/**********************************************************************
** Copyright (C) 2000 Trolltech AS. All rights reserved.
**
** This file is part of Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include <qlabel.h>
#include <qtimer.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qlayout.h>
#include "graph.h"
#include "memory.h"
MemoryInfo::MemoryInfo( QWidget *parent, const char *name, WFlags f )
: QWidget( parent, name, f )
{
QVBoxLayout *vb = new QVBoxLayout( this, 5 );
totalMem = new QLabel( this );
vb->addWidget( totalMem );
data = new GraphData();
// graph = new PieGraph( this );
graph = new BarGraph( this );
graph->setFrameStyle( QFrame::Panel | QFrame::Sunken );
vb->addWidget( graph, 1 );
graph->setData( data );
legend = new GraphLegend( this );
vb->addWidget( legend );
legend->setData( data );
vb->addStretch( 1 );
updateData();
QTimer *t = new QTimer( this );
connect( t, SIGNAL( timeout() ), this, SLOT( updateData() ) );
t->start( 5000 );
}
MemoryInfo::~MemoryInfo()
{
delete data;
}
void MemoryInfo::updateData()
{
QFile file( "/proc/meminfo" );
if ( file.open( IO_ReadOnly ) ) {
QTextStream t( &file );
QString dummy = t.readLine(); // title
t >> dummy;
int total, used, memfree, shared, buffers, cached;
t >> total;
total /= 1000;
t >> used;
used /= 1000;
t >> memfree;
memfree /= 1000;
t >> shared;
shared /= 1000;
t >> buffers;
buffers /= 1000;
t >> cached;
cached /= 1000;
int realUsed = total - ( buffers + cached + memfree );
data->clear();
data->addItem( tr("Used (%1 kB)").arg(realUsed), realUsed );
data->addItem( tr("Buffers (%1 kB)").arg(buffers), buffers );
data->addItem( tr("Cached (%1 kB)").arg(cached), cached );
data->addItem( tr("Free (%1 kB)").arg(memfree), memfree );
totalMem->setText( tr( "Total Memory: %1 kB" ).arg( total ) );
graph->repaint( FALSE );
legend->update();
}
}
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