1 files changed, 111 insertions, 0 deletions
diff --git a/wifi/statistics.cpp b/wifi/statistics.cpp
new file mode 100644
index 00000000..2ad8d393
--- /dev/null
+++ b/wifi/statistics.cpp
@@ -0,0 +1,111 @@
+/***************************************************************************
+                          statistics.cpp  -  description
+                             -------------------
+    begin                : Mon Aug 19 2002
+    copyright            : (C) 2002 by Stefan Winter
+    email                : mail@stefan-winter.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include <qwidget.h>
+#include <qpainter.h>
+#include <klocale.h>
+#include "statistics.h"
+#include "interface_wireless.h"
+
+Statistics::Statistics (Interface_wireless * device, bool showStatsNoise):QWidget (0,
+	 "KWiFiManager")
+{
+  this->setCaption (i18n ("Statistics - KWiFiManager"));
+  this->device = device;
+  this->showStatsNoise = showStatsNoise;
+}
+
+void
+Statistics::paintEvent (QPaintEvent *)
+{
+  statpainter = new QPainter (this);
+  QColor farbe (255, 255, 255);
+  statpainter->drawText (40, 30, i18n ("Noise/Signal Level Statistics"));
+  statpainter->drawText (150, 260,
+			 i18n ("BLUE = signal level, RED = noise level"));
+  statpainter->drawLine (41, 244, 41, 260);
+  statpainter->drawLine (520, 244, 520, 260);
+  statpainter->drawText (21, 274, i18n ("-240 s"));
+  statpainter->drawText (510, 274, i18n ("now"));
+  statpainter->fillRect (41, 41, 480, 201, farbe);
+  QPointArray datensatz (240);
+  QPointArray datensatz2 (240);
+  // we may need to scale the output to fit into the window, so here we 
+  // determine the range of values
+  int bottom =
+    (device->sigLevelMin >
+     device->noiseLevelMin) ? device->noiseLevelMin : device->sigLevelMin;
+  int top =
+    (device->sigLevelMax >
+     device->noiseLevelMax) ? device->sigLevelMax : device->noiseLevelMax;
+  int datarange = top - bottom;
+  statpainter->drawText (10, 50, QString ("%1").arg (top));
+  statpainter->drawText (10, 240, QString ("%1").arg (bottom));
+
+  // if values are all below 0, this indicates proper dBm values
+
+  if (top < 0) {
+	statpainter->drawText (2,65, "dBm");
+	statpainter->drawText (2,255, "dBm");
+  }
+
+  double scaleRatio;
+  if (datarange != 0)
+    {
+      scaleRatio = 200. / datarange;
+    }
+  else
+    {
+      scaleRatio = 1.;
+    }
+  int i = 0;
+  bool atLeastOneValid = false;
+  for (int j = device->current; j < device->current + MAX_HISTORY; j++)
+    {
+      if (device->valid[j % MAX_HISTORY])
+	{
+	  atLeastOneValid = true;
+	  datensatz.setPoint (i, 40 + (i * 2),
+			      241 -
+			      (int) (((device->sigLevel[j % MAX_HISTORY] + device->sigLevel[(j-1) % MAX_HISTORY]) / 2 -
+				      bottom) * scaleRatio));
+	  datensatz2.setPoint (i, 40 + (i * 2),
+			       241 -
+			       (int) (((device->noiseLevel[j % MAX_HISTORY] + device->noiseLevel[(j-1) % MAX_HISTORY]) / 2 -
+				       bottom) * scaleRatio));
+	}
+      else
+	{
+	  datensatz.setPoint (i, 40 + (i * 2), 241);
+	  datensatz2.setPoint (i, 40 + (i * 2), 241);
+	}
+      i++;
+    };
+  // the above point array is only useful if at least one entry has its
+  // valid flag set. This fact is determined in the iteration before.
+  // Only paint the point array if there is one valid entry
+  if (atLeastOneValid)
+    {
+      if (showStatsNoise) {
+        statpainter->setPen (red);
+        statpainter->drawPolyline (datensatz2, 1);
+      }
+      statpainter->setPen (blue);
+      statpainter->drawPolyline (datensatz, 1);
+    }
+  delete statpainter;
+}