diff options
Diffstat (limited to 'wifi/statistics.cpp')
| -rw-r--r-- | wifi/statistics.cpp | 111 |
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; +} |