Try and fit all stream stats column within window

 * Resize columns to content (instead of using default width)
 * Use Kpps/Mpps for Pkt Rate with 3 decimal
 * Use 3 decimal places for bit-rates (is more logical because units change
   every 1000 anyway)
 * Use 2 decimal places for time interval

This just improves the chances of all columns fitting - but is not guaranteed

client/streamstatsmodel.cpp

@@ -168,12 +168,12 @@ QVariant StreamStatsModel::data(const QModelIndex &index, int role) const
             return QString("%L1").arg(aggrGuidStats_.value(guid).txDuration);
         case kAvgTxFrameRate:
             return aggrGuidStats_.value(guid).txDuration <= 0 ? QString("-") :
-                QString("%L1").arg(
+                 XLocale().toPktRateString(
                     aggrGuidStats_.value(guid).txPkts
                         / aggrGuidStats_.value(guid).txDuration);
         case kAvgRxFrameRate:
             return aggrGuidStats_.value(guid).txDuration <= 0 ? QString("-") :
-                 QString("%L1").arg(
+                 XLocale().toPktRateString(
                     aggrGuidStats_.value(guid).rxPkts
                         / aggrGuidStats_.value(guid).txDuration);
         case kAvgTxBitRate:

client/streamstatswindow.cpp

@@ -46,6 +46,10 @@ StreamStatsWindow::StreamStatsWindow(QAbstractItemModel *model, QWidget *parent)
     streamStats->verticalHeader()->setHighlightSections(false);
     streamStats->verticalHeader()->setDefaultSectionSize(
             streamStats->verticalHeader()->minimumSectionSize());
+
+    // Fit all columns in window whenever data changes
+    connect(model, &QAbstractItemModel::modelReset,
+            [=]() { streamStats->resizeColumnsToContents(); });
 }
 
 StreamStatsWindow::~StreamStatsWindow()
@@ -62,4 +66,6 @@ void StreamStatsWindow::on_actionShowDetails_triggered(bool checked)
         filterModel_->setFilterRegExp(QRegExp(".*"));
     else
         filterModel_->setFilterRegExp(QRegExp(kDefaultFilter_));
+
+    streamStats->resizeColumnsToContents();
 }

client/xqlocale.h

@@ -85,34 +85,47 @@ class XLocale: public QLocale
         return toDouble(text, ok) * multiplier;
     }
 
+    QString toPktRateString(double pps) const
+    {
+        QString text;
+
+        if (pps >= 1e6)
+            return QObject::tr("%L1 Mpps").arg(pps/1e6, 0, 'f', 3);
+
+        if (pps >= 1e3)
+            return QObject::tr("%L1 Kpps").arg(pps/1e3, 0, 'f', 3);
+
+        return QObject::tr("%L1").arg(pps, 0, 'f', 3);
+    }
+
     QString toBitRateString(double bps) const
     {
         QString text;
 
         if (bps >= 1e9)
-            return QObject::tr("%L1 Gbps").arg(bps/1e9, 0, 'f', 4);
+            return QObject::tr("%L1 Gbps").arg(bps/1e9, 0, 'f', 3);
 
         if (bps >= 1e6)
-            return QObject::tr("%L1 Mbps").arg(bps/1e6, 0, 'f', 4);
+            return QObject::tr("%L1 Mbps").arg(bps/1e6, 0, 'f', 3);
 
         if (bps >= 1e3)
-            return QObject::tr("%L1 Kbps").arg(bps/1e3, 0, 'f', 4);
+            return QObject::tr("%L1 Kbps").arg(bps/1e3, 0, 'f', 3);
 
-        return QObject::tr("%L1 bps").arg(bps, 0, 'f', 4);
+        return QObject::tr("%L1 bps").arg(bps, 0, 'f', 3);
     }
 
     QString toTimeIntervalString(qint64 nanosecs) const
     {
         QString text;
 
         if (nanosecs >= 1e9)
-            return QObject::tr("%L1 s").arg(nanosecs/1e9, 0, 'f', 3);
+            return QObject::tr("%L1 s").arg(nanosecs/1e9, 0, 'f', 2);
 
         if (nanosecs >= 1e6)
-            return QObject::tr("%L1 ms").arg(nanosecs/1e6, 0, 'f', 3);
+            return QObject::tr("%L1 ms").arg(nanosecs/1e6, 0, 'f', 2);
 
         if (nanosecs >= 1e3)
-            return QObject::tr("%L1 us").arg(nanosecs/1e3, 0, 'f', 3);
+            return QObject::tr("%L1 us").arg(nanosecs/1e3, 0, 'f', 2);
 
         return QObject::tr("%L1 ns").arg(nanosecs);
     }