show swap memory on Memory tab

2 files changed, 95 insertions, 36 deletions

diff --git a/noncore/settings/sysinfo/memory.cpp b/noncore/settings/sysinfo/memory.cpp
index 4f612d8..23dd8bd 100644
--- a/noncore/settings/sysinfo/memory.cpp
+++ b/noncore/settings/sysinfo/memory.cpp
@@ -14,85 +14,128 @@
 ** 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 <qlayout.h>
 #include <qtextstream.h>
-#include <qtimer.h>
+#include <qlayout.h>
 #include <qwhatsthis.h>
-
 #include "graph.h"
 #include "memory.h"
 
-MemoryInfo::MemoryInfo( QWidget *parent, const char *name, WFlags )
-    : QWidget( parent, name, WStyle_ContextHelp )
+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 );
 
+    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 handheld 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." ) );
+
+    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 ) ) {
-	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();
-    }
-}
+    if ( file.open( IO_ReadOnly ) )
+    {
+        QTextStream t( &file );
+        QString dummy = t.readLine();   // title
+        t >> dummy;
+        t >> total;
+        total /= 1000;
+        t >> used;
+        used /= 1000;
+        t >> memfree;
+        memfree /= 1000;
+        t >> shared;
+        shared /= 1000;
+        t >> buffers;
+        buffers /= 1000;
+        t >> cached;
+        cached /= 1000;
+        realUsed = total - ( buffers + cached + memfree );
+
+        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();
 
+        // swapfile
+        t >> dummy;
+        t >> swaptotal;
+        swaptotal /= 1000;
+        t >> swapused;
+        swapused /= 1000;
+        t >> swapfree;
+        swapfree /= 1000;
 
+        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();
+        }
+    }
+}
diff --git a/noncore/settings/sysinfo/memory.h b/noncore/settings/sysinfo/memory.h
index 696f97c..c2af948 100644
--- a/noncore/settings/sysinfo/memory.h
+++ b/noncore/settings/sysinfo/memory.h
@@ -30,19 +30,35 @@ class QLabel;
 
 class MemoryInfo : public QWidget
 {
     Q_OBJECT
 public:
     MemoryInfo( QWidget *parent = 0, const char *name = 0, WFlags f = 0 );
     ~MemoryInfo();
 
+    unsigned long total;
+    unsigned long used;
+    unsigned long memfree;
+    unsigned long shared;
+    unsigned long buffers;
+    unsigned long cached;
+    unsigned long realUsed;
+    unsigned long swaptotal;
+    unsigned long swapused;
+    unsigned long swapfree;
+
 private slots:
     void updateData();
 
 private:
     QLabel *totalMem;
     GraphData *data;
     Graph *graph;
     GraphLegend *legend;
+
+    QLabel* swapMem;
+    GraphData *swapdata;
+    Graph *swapgraph;
+    GraphLegend *swaplegend;
 };
 
 #endif