fix 1505 and suck sysinfo files into the tree instead of cross referencing

eventually we may find that graph and load are of universal usage, then
they should appear in some kind of library

1 files changed, 165 insertions, 0 deletions

diff --git a/noncore/applets/memoryapplet/memory.cpp b/noncore/applets/memoryapplet/memory.cpp
new file mode 100644
index 0000000..05349e4
--- a/dev/null
+++ b/noncore/applets/memoryapplet/memory.cpp
@@ -0,0 +1,165 @@
+/**********************************************************************
+** 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 <qwhatsthis.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 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 );
+
+    swapMem = new QLabel( this );
+    vb->addWidget( swapMem );
+
+    swapdata = new GraphData();
+    swapgraph = new BarGraph( this );
+    swapgraph->setFrameStyle( QFrame::Panel | QFrame::Sunken );
+    vb->addWidget( swapgraph, 1 );
+    swapgraph->setData( swapdata );
+
+    swaplegend = new GraphLegend( this );
+    vb->addWidget( swaplegend );
+    swaplegend->setData( swapdata );
+
+    vb->addStretch( 1 );
+    updateData();
+
+    QTimer *t = new QTimer( this );
+    connect( t, SIGNAL( timeout() ), this, SLOT( updateData() ) );
+    t->start( 5000 );
+
+    QWhatsThis::add( this, tr( "This page shows how memory (i.e. RAM) is being allocated on your device.\nMemory is categorized as follows:\n\n1. Used - memory used to by Opie and any running applications.\n2. Buffers - temporary storage used to improve performance\n3. Cached - information that has recently been used, but has not been freed yet.\n4. Free - memory not currently used by Opie or any running applications." ) );
+
+}
+
+MemoryInfo::~MemoryInfo()
+{
+    delete data;
+}
+
+void MemoryInfo::updateData()
+{
+    QFile file( "/proc/meminfo" );
+
+    if ( file.open( IO_ReadOnly ) )
+    {
+        // local variables
+        QString line;
+        QString identifier;
+        QString value;
+        int position;
+        QTextStream t( &file );
+
+        while ( !t.atEnd() )
+        {
+            // read a line
+            line = t.readLine();
+
+            // extract identifier and value from line
+            position = line.find( ":" );
+            identifier = line.left( position );
+            value = line.mid( position + 1, line.length() - position - 3 );
+            value = value.stripWhiteSpace();
+
+            // copy values in variables
+            if ( identifier == "MemTotal" )
+            {
+                total = value.toULong();
+            } else if ( identifier == "MemFree" )
+            {
+                memfree = value.toULong();
+            } else if ( identifier == "Buffers" )
+            {
+                buffers = value.toULong();
+            } else if ( identifier == "Cached" )
+            {
+                cached = value.toULong();
+            } else if ( identifier == "SwapCached" )
+            {
+            } else if ( identifier == "SwapTotal" )
+            {
+                swaptotal = value.toULong();
+            } else if ( identifier == "SwapFree" )
+            {
+                swapfree = value.toULong();
+            }
+        }
+
+        file.close();
+
+        // calculate values
+        used = total - memfree;
+        swapused = swaptotal - swapfree;
+        realUsed = total - ( buffers + cached + memfree );
+
+        // visualize values
+        totalMem->setText( tr( "Total Memory: %1 kB" ).arg( total ) );
+        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 );
+
+        graph->hide();
+        graph->show();
+        legend->update();
+
+        if (swaptotal > 0)
+        {
+            swapMem->setText( tr( "Total Swap: %1 kB" ).arg( swaptotal ) );
+            swapdata->clear();
+            swapdata->addItem( tr("Used (%1 kB)").arg(swapused), swapused );
+            swapdata->addItem( tr("Free (%1 kB)").arg(swapfree), swapfree );
+
+            swapMem->show();
+            swapgraph->show();
+            swaplegend->show();
+
+            swapgraph->repaint( FALSE );
+            swaplegend->update();
+        }
+        else
+        {
+            swapMem->hide();
+            swapgraph->hide();
+            swaplegend->hide();
+        }
+    }
+}