Display numbers according to the locale settings

Closes #150

src/GUI/axisitem.cpp

@@ -36,7 +36,8 @@ Ticks::Ticks(double minValue, double maxValue, int maxCount)
 }
 
 
-AxisItem::AxisItem(Type type, QGraphicsItem *parent) : QGraphicsItem(parent)
+AxisItem::AxisItem(Type type, QGraphicsItem *parent)
+  : QGraphicsItem(parent), _locale(QLocale::system())
 {
 	_type = type;
 	_size = 0;
@@ -56,7 +57,7 @@ void AxisItem::setRange(const RangeF &range)
 	for (int i = 0; i < ticks.count(); i++) {
 		Tick &t = _ticks[i];
 		t.value = ticks.val(i);
-		t.boundingBox = fm.tightBoundingRect(QString::number(t.value));
+		t.boundingBox = fm.tightBoundingRect(_locale.toString(t.value));
 	}
 
 	updateBoundingRect();
@@ -126,7 +127,7 @@ void AxisItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 			  TICK/2, (_size/_range.size()) * (val - _range.min()), -TICK/2);
 			painter->drawText(((_size/_range.size()) * (val - _range.min()))
 			  - (ts.width()/2), ts.height() + TICK/2 + PADDING,
-			  QString::number(val));
+			  _locale.toString(val));
 		}
 
 		painter->drawText(_size/2 - _labelBB.width()/2, _labelBB.height()
@@ -145,7 +146,7 @@ void AxisItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 			  * (val - _range.min())));
 			painter->drawText(-(ts.width() + PADDING + TICK/2),
 			  -((_size/_range.size()) * (val - _range.min())) + (ts.height()/2),
-			  QString::number(val));
+			  _locale.toString(val));
 		}
 
 		painter->rotate(-90);

src/GUI/axisitem.h

@@ -3,6 +3,7 @@
 
 #include <QGraphicsItem>
 #include <QVector>
+#include <QLocale>
 #include "common/range.h"
 
 class AxisItem : public QGraphicsItem
@@ -39,6 +40,7 @@ private:
 	QVector<Tick> _ticks;
 	QRectF _boundingRect;
 	QFont _font;
+	QLocale _locale;
 };
 
 #endif // AXISITEM_H

src/GUI/cadencegraph.cpp

@@ -1,3 +1,4 @@
+#include <QLocale>
 #include "data/data.h"
 #include "cadencegraphitem.h"
 #include "cadencegraph.h"
@@ -16,9 +17,11 @@ CadenceGraph::CadenceGraph(QWidget *parent) : GraphTab(parent)
 void CadenceGraph::setInfo()
 {
 	if (_showTracks) {
-		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale()
+		QLocale l(QLocale::system());
+
+		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale()
 		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale()
+		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale()
 		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
 	} else
 		clearInfo();

src/GUI/cadencegraphitem.cpp

@@ -1,6 +1,8 @@
+#include <QLocale>
 #include "tooltip.h"
 #include "cadencegraphitem.h"
 
+
 CadenceGraphItem::CadenceGraphItem(const Graph &graph, GraphType type,
   QGraphicsItem *parent) : GraphItem(graph, type, parent)
 {
@@ -16,10 +18,11 @@ CadenceGraphItem::CadenceGraphItem(const Graph &graph, GraphType type,
 QString CadenceGraphItem::toolTip() const
 {
 	ToolTip tt;
+	QLocale l(QLocale::system());
 
-	tt.insert(tr("Maximum"), QString::number(max(), 'f', 1)
+	tt.insert(tr("Maximum"), l.toString(max(), 'f', 1)
 	  + UNIT_SPACE + tr("rpm"));
-	tt.insert(tr("Average"), QString::number(avg(), 'f', 1)
+	tt.insert(tr("Average"), l.toString(avg(), 'f', 1)
 	  + UNIT_SPACE + tr("rpm"));
 
 	return tt.toString();

src/GUI/elevationgraph.cpp

@@ -1,4 +1,5 @@
 #include <cmath>
+#include <QLocale>
 #include "data/data.h"
 #include "config.h"
 #include "tooltip.h"
@@ -54,13 +55,15 @@ void ElevationGraph::setInfo()
 	if (std::isnan(max()) || std::isnan(min()))
 		clearInfo();
 	else {
-		GraphView::addInfo(tr("Ascent"), QString::number(ascent() * yScale(),
+		QLocale l(QLocale::system());
+
+		GraphView::addInfo(tr("Ascent"), l.toString(ascent() * yScale(),
 		  'f', 0) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Descent"), QString::number(descent() * yScale(),
+		GraphView::addInfo(tr("Descent"), l.toString(descent() * yScale(),
 		  'f', 0) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(), 'f',
+		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale(), 'f',
 		  0) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Minimum"), QString::number(min() * yScale(), 'f',
+		GraphView::addInfo(tr("Minimum"), l.toString(min() * yScale(), 'f',
 		  0) + UNIT_SPACE + yUnits());
 	}
 }

src/GUI/elevationgraphitem.cpp

@@ -1,6 +1,8 @@
+#include <QLocale>
 #include "tooltip.h"
 #include "elevationgraphitem.h"
 
+
 ElevationGraphItem::ElevationGraphItem(const Graph &graph, GraphType type,
   QGraphicsItem *parent) : GraphItem(graph, type, parent)
 {
@@ -24,14 +26,15 @@ QString ElevationGraphItem::toolTip(Units units) const
 	ToolTip tt;
 	qreal scale = (units == Metric) ? 1.0 : M2FT;
 	QString su = (units == Metric) ? tr("m") : tr("ft");
+	QLocale l(QLocale::system());
 
-	tt.insert(tr("Ascent"), QString::number(ascent() * scale, 'f', 0)
+	tt.insert(tr("Ascent"), l.toString(ascent() * scale, 'f', 0)
 	  + UNIT_SPACE + su);
-	tt.insert(tr("Descent"), QString::number(descent() * scale, 'f', 0)
+	tt.insert(tr("Descent"), l.toString(descent() * scale, 'f', 0)
 	  + UNIT_SPACE + su);
-	tt.insert(tr("Maximum"), QString::number(max() * scale, 'f', 0)
+	tt.insert(tr("Maximum"), l.toString(max() * scale, 'f', 0)
 	  + UNIT_SPACE + su);
-	tt.insert(tr("Minimum"), QString::number(min() * scale, 'f', 0)
+	tt.insert(tr("Minimum"), l.toString(min() * scale, 'f', 0)
 	  + UNIT_SPACE + su);
 
 	return tt.toString();

src/GUI/format.cpp

@@ -46,37 +46,41 @@ QString Format::timeSpan(qreal time, bool full)
 
 QString Format::distance(qreal value, Units units)
 {
+	QLocale l(QLocale::system());
+
 	if (units == Imperial) {
 		if (value < MIINM)
-			return QString::number(value * M2FT, 'f', 0) + UNIT_SPACE
+			return l.toString(value * M2FT, 'f', 0) + UNIT_SPACE
 			  + qApp->translate("Format", "ft");
 		else
-			return QString::number(value * M2MI, 'f', 1) + UNIT_SPACE
+			return l.toString(value * M2MI, 'f', 1) + UNIT_SPACE
 			  + qApp->translate("Format", "mi");
 	} else if (units == Nautical) {
 		if (value < NMIINM)
-			return QString::number(value * M2FT, 'f', 0) + UNIT_SPACE
+			return l.toString(value * M2FT, 'f', 0) + UNIT_SPACE
 			  + qApp->translate("Format", "ft");
 		else
-			return QString::number(value * M2NMI, 'f', 1) + UNIT_SPACE
+			return l.toString(value * M2NMI, 'f', 1) + UNIT_SPACE
 			  + qApp->translate("Format", "nmi");
 	} else {
 		if (value < KMINM)
-			return QString::number(value, 'f', 0) + UNIT_SPACE
+			return l.toString(value, 'f', 0) + UNIT_SPACE
 			  + qApp->translate("Format", "m");
 		else
-			return QString::number(value * M2KM, 'f', 1) + UNIT_SPACE
+			return l.toString(value * M2KM, 'f', 1) + UNIT_SPACE
 			  + qApp->translate("Format", "km");
 	}
 }
 
 QString Format::elevation(qreal value, Units units)
 {
+	QLocale l(QLocale::system());
+
 	if (units == Metric)
-		return QString::number(qRound(value)) + UNIT_SPACE
+		return l.toString(qRound(value)) + UNIT_SPACE
 		  + qApp->translate("Format", "m");
 	else
-		return QString::number(qRound(value * M2FT)) + UNIT_SPACE
+		return l.toString(qRound(value * M2FT)) + UNIT_SPACE
 		  + qApp->translate("Format", "ft");
 }
 
@@ -95,7 +99,8 @@ QString Format::coordinates(const Coordinates &value, CoordinatesFormat type)
 			  + deg2DMS(qAbs(value.lon())) + xH;
 			break;
 		default:
-			return QString::number(qAbs(value.lat()), 'f', 5) + yH + ","
+			QLocale l(QLocale::system());
-			  + QChar(0x00A0) + QString::number(qAbs(value.lon()), 'f', 5) + xH;
+			return l.toString(qAbs(value.lat()), 'f', 5) + yH + ","
+			+ QChar(0x00A0) + l.toString(qAbs(value.lon()), 'f', 5) + xH;
 	}
 }

src/GUI/gearratiograph.cpp

@@ -1,3 +1,4 @@
+#include <QLocale>
 #include "data/data.h"
 #include "gearratiographitem.h"
 #include "gearratiograph.h"
@@ -16,11 +17,13 @@ GearRatioGraph::GearRatioGraph(QWidget *parent) : GraphTab(parent)
 void GearRatioGraph::setInfo()
 {
 	if (_showTracks) {
-		GraphView::addInfo(tr("Most used"), QString::number(top() * yScale(),
+		QLocale l(QLocale::system());
+
+		GraphView::addInfo(tr("Most used"), l.toString(top() * yScale(),
 		  'f', 2) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Minimum"), QString::number(min() * yScale(), 'f',
+		GraphView::addInfo(tr("Minimum"), l.toString(min() * yScale(), 'f',
 		  2) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(), 'f',
+		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale(), 'f',
 		  2) + UNIT_SPACE + yUnits());
 	} else
 		clearInfo();

src/GUI/gearratiographitem.cpp

@@ -1,7 +1,9 @@
 #include <QMap>
+#include <QLocale>
 #include "tooltip.h"
 #include "gearratiographitem.h"
 
+
 GearRatioGraphItem::GearRatioGraphItem(const Graph &graph, GraphType type,
   QGraphicsItem *parent) : GraphItem(graph, type, parent), _top(NAN)
 {
@@ -30,10 +32,11 @@ GearRatioGraphItem::GearRatioGraphItem(const Graph &graph, GraphType type,
 QString GearRatioGraphItem::toolTip() const
 {
 	ToolTip tt;
+	QLocale l(QLocale::system());
 
-	tt.insert(tr("Minimum"), QString::number(min(), 'f', 2));
+	tt.insert(tr("Minimum"), l.toString(min(), 'f', 2));
-	tt.insert(tr("Maximum"), QString::number(max(), 'f', 2));
+	tt.insert(tr("Maximum"), l.toString(max(), 'f', 2));
-	tt.insert(tr("Most used"), QString::number(top(), 'f', 2));
+	tt.insert(tr("Most used"), l.toString(top(), 'f', 2));
 
 	return tt.toString();
 }

src/GUI/graphview.cpp

@@ -5,6 +5,7 @@
 #include <QPaintDevice>
 #include <QGraphicsSimpleTextItem>
 #include <QPalette>
+#include <QLocale>
 #include "data/graph.h"
 #include "opengl.h"
 #include "config.h"
@@ -413,8 +414,10 @@ void GraphView::updateSliderPosition()
 
 void GraphView::updateSliderInfo()
 {
+	QLocale l(QLocale::system());
 	qreal r, y;
 
+
 	if (_visible.count() > 1) {
 		r = 0;
 		y = 0;
@@ -435,9 +438,9 @@ void GraphView::updateSliderInfo()
 	_sliderInfo->setSide(s);
 	_sliderInfo->setPos(QPointF(0, _slider->boundingRect().height() * r));
 	_sliderInfo->setText(_graphType == Time ? Format::timeSpan(_sliderPos,
-	  bounds().width() > 3600) : QString::number(_sliderPos * _xScale, 'f', 1)
+	  bounds().width() > 3600) : l.toString(_sliderPos * _xScale, 'f', 1)
 	  + UNIT_SPACE + _xUnits, (_visible.count() > 1) ? QString()
-	  : QString::number(-y * _yScale + _yOffset, 'f', _precision) + UNIT_SPACE
+	  : l.toString(-y * _yScale + _yOffset, 'f', _precision) + UNIT_SPACE
 	  + _yUnits);
 }
 

src/GUI/gui.cpp

@@ -971,6 +971,8 @@ void GUI::exportFile()
 
 void GUI::statistics()
 {
+	QLocale l(QLocale::system());
+
 #ifdef Q_OS_WIN32
 	QString text = "<style>td {white-space: pre; padding-right: 4em;}"
 	  "th {text-align: left; padding-top: 0.5em;}</style><table>";
@@ -981,21 +983,21 @@ void GUI::statistics()
 
 	if (_showTracksAction->isChecked() && _trackCount > 1)
 		text.append("<tr><td>" + tr("Tracks") + ":</td><td>"
-		  + QString::number(_trackCount) + "</td></tr>");
+		  + l.toString(_trackCount) + "</td></tr>");
 	if (_showRoutesAction->isChecked() && _routeCount > 1)
 		text.append("<tr><td>" + tr("Routes") + ":</td><td>"
-		  + QString::number(_routeCount) + "</td></tr>");
+		  + l.toString(_routeCount) + "</td></tr>");
 	if (_showWaypointsAction->isChecked() && _waypointCount > 1)
 		text.append("<tr><td>" + tr("Waypoints") + ":</td><td>"
-		  + QString::number(_waypointCount) + "</td></tr>");
+		  + l.toString(_waypointCount) + "</td></tr>");
 
 	if (_dateRange.first.isValid()) {
 		if (_dateRange.first == _dateRange.second) {
-			QString format = QLocale::system().dateFormat(QLocale::LongFormat);
+			QString format = l.dateFormat(QLocale::LongFormat);
 			text.append("<tr><td>" + tr("Date") + ":</td><td>"
 			  + _dateRange.first.toString(format) + "</td></tr>");
 		} else {
-			QString format = QLocale::system().dateFormat(QLocale::ShortFormat);
+			QString format = l.dateFormat(QLocale::ShortFormat);
 			text.append("<tr><td>" + tr("Date") + ":</td><td>"
 			  + QString("%1 - %2").arg(_dateRange.first.toString(format),
 			  _dateRange.second.toString(format)) + "</td></tr>");
@@ -1037,6 +1039,7 @@ void GUI::statistics()
 
 void GUI::plot(QPrinter *printer)
 {
+	QLocale l(QLocale::system());
 	QPainter p(printer);
 	TrackInfo info;
 	qreal ih, gh, mh, ratio;
@@ -1047,19 +1050,19 @@ void GUI::plot(QPrinter *printer)
 
 	if (_options.printItemCount) {
 		if (_showTracksAction->isChecked() && _trackCount > 1)
-			info.insert(tr("Tracks"), QString::number(_trackCount));
+			info.insert(tr("Tracks"), l.toString(_trackCount));
 		if (_showRoutesAction->isChecked() && _routeCount > 1)
-			info.insert(tr("Routes"), QString::number(_routeCount));
+			info.insert(tr("Routes"), l.toString(_routeCount));
 		if (_showWaypointsAction->isChecked() && _waypointCount > 1)
-			info.insert(tr("Waypoints"), QString::number(_waypointCount));
+			info.insert(tr("Waypoints"), l.toString(_waypointCount));
 	}
 
 	if (_dateRange.first.isValid() && _options.printDate) {
 		if (_dateRange.first == _dateRange.second) {
-			QString format = QLocale::system().dateFormat(QLocale::LongFormat);
+			QString format = l.dateFormat(QLocale::LongFormat);
 			info.insert(tr("Date"), _dateRange.first.toString(format));
 		} else {
-			QString format = QLocale::system().dateFormat(QLocale::ShortFormat);
+			QString format = l.dateFormat(QLocale::ShortFormat);
 			info.insert(tr("Date"), QString("%1 - %2")
 			  .arg(_dateRange.first.toString(format),
 			  _dateRange.second.toString(format)));

src/GUI/heartrategraph.cpp

@@ -1,3 +1,4 @@
+#include <QLocale>
 #include "data/data.h"
 #include "heartrategraphitem.h"
 #include "heartrategraph.h"
@@ -16,9 +17,11 @@ HeartRateGraph::HeartRateGraph(QWidget *parent) : GraphTab(parent)
 void HeartRateGraph::setInfo()
 {
 	if (_showTracks) {
-		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale(), 'f',
+		QLocale l(QLocale::system());
+
+		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale(), 'f',
 		  0) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(), 'f',
+		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale(), 'f',
 		  0) + UNIT_SPACE + yUnits());
 	} else
 		clearInfo();

src/GUI/heartrategraphitem.cpp

@@ -1,6 +1,8 @@
+#include <QLocale>
 #include "tooltip.h"
 #include "heartrategraphitem.h"
 
+
 HeartRateGraphItem::HeartRateGraphItem(const Graph &graph, GraphType type,
   QGraphicsItem *parent) : GraphItem(graph, type, parent)
 {
@@ -16,10 +18,11 @@ HeartRateGraphItem::HeartRateGraphItem(const Graph &graph, GraphType type,
 QString HeartRateGraphItem::toolTip() const
 {
 	ToolTip tt;
+	QLocale l(QLocale::system());
 
-	tt.insert(tr("Maximum"), QString::number(max(), 'f', 0)
+	tt.insert(tr("Maximum"), l.toString(max(), 'f', 0)
 	  + UNIT_SPACE + tr("bpm"));
-	tt.insert(tr("Average"), QString::number(avg(), 'f', 0)
+	tt.insert(tr("Average"), l.toString(avg(), 'f', 0)
 	  + UNIT_SPACE + tr("bpm"));
 
 	return tt.toString();

src/GUI/percentslider.cpp

@@ -1,13 +1,14 @@
 #include <QSlider>
 #include <QLabel>
 #include <QHBoxLayout>
+#include <QLocale>
 #include "units.h"
 #include "percentslider.h"
 
 
 static QString format(int value)
 {
-	return QString::number(value) + UNIT_SPACE + QString("%");
+	return QLocale::system().toString(value) + UNIT_SPACE + QString("%");
 }
 
 PercentSlider::PercentSlider(QWidget *parent) : QWidget(parent)

src/GUI/powergraph.cpp

@@ -1,3 +1,4 @@
+#include <QLocale>
 #include "data/data.h"
 #include "powergraphitem.h"
 #include "powergraph.h"
@@ -16,9 +17,11 @@ PowerGraph::PowerGraph(QWidget *parent) : GraphTab(parent)
 void PowerGraph::setInfo()
 {
 	if (_showTracks) {
-		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale()
+		QLocale l(QLocale::system());
+
+		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale()
 		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale()
+		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale()
 		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
 	} else
 		clearInfo();

src/GUI/powergraphitem.cpp

@@ -1,6 +1,8 @@
+#include <QLocale>
 #include "tooltip.h"
 #include "powergraphitem.h"
 
+
 PowerGraphItem::PowerGraphItem(const Graph &graph, GraphType type,
   QGraphicsItem *parent) : GraphItem(graph, type, parent)
 {
@@ -16,10 +18,11 @@ PowerGraphItem::PowerGraphItem(const Graph &graph, GraphType type,
 QString PowerGraphItem::toolTip() const
 {
 	ToolTip tt;
+	QLocale l(QLocale::system());
 
-	tt.insert(tr("Maximum"), QString::number(max(), 'f', 1)
+	tt.insert(tr("Maximum"), l.toString(max(), 'f', 1)
 	  + UNIT_SPACE + tr("W"));
-	tt.insert(tr("Average"), QString::number(avg(), 'f', 1)
+	tt.insert(tr("Average"), l.toString(avg(), 'f', 1)
 	  + UNIT_SPACE + tr("W"));
 
 	return tt.toString();

src/GUI/speedgraph.cpp

@@ -1,3 +1,4 @@
+#include <QLocale>
 #include "data/data.h"
 #include "config.h"
 #include "tooltip.h"
@@ -21,13 +22,14 @@ SpeedGraph::SpeedGraph(QWidget *parent) : GraphTab(parent)
 void SpeedGraph::setInfo()
 {
 	if (_showTracks) {
+		QLocale l(QLocale::system());
 		QString pace = Format::timeSpan((3600.0 / (avg() * yScale())), false);
 		QString pu = (_units == Metric) ? tr("min/km") : (_units == Imperial) ?
 		  tr("min/mi") : tr("min/nmi");
 
-		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale(), 'f',
+		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale(), 'f',
 		  1) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(), 'f',
+		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale(), 'f',
 		  1) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Pace"), pace + UNIT_SPACE + pu);
 	} else

src/GUI/speedgraphitem.cpp

@@ -1,7 +1,9 @@
+#include <QLocale>
 #include "tooltip.h"
 #include "format.h"
 #include "speedgraphitem.h"
 
+
 SpeedGraphItem::SpeedGraphItem(const Graph &graph, GraphType type,
   qreal movingTime, QGraphicsItem *parent) : GraphItem(graph, type, parent)
 {
@@ -25,10 +27,11 @@ QString SpeedGraphItem::toolTip() const
 	  ? avg() * scale : mavg() * scale)), false);
 	QString pu = (_units == Metric) ? tr("min/km") : (_units == Imperial) ?
 	  tr("min/mi") : tr("min/nmi");
+	QLocale l(QLocale::system());
 
-	tt.insert(tr("Maximum"), QString::number(max() * scale, 'f', 1)
+	tt.insert(tr("Maximum"), l.toString(max() * scale, 'f', 1)
 	  + UNIT_SPACE + su);
-	tt.insert(tr("Average"), QString::number((_timeType == Total)
+	tt.insert(tr("Average"), l.toString((_timeType == Total)
 	  ? avg() * scale : mavg() * scale, 'f', 1) + UNIT_SPACE + su);
 	tt.insert(tr("Pace"), pace + UNIT_SPACE + pu);
 

src/GUI/temperaturegraph.cpp

@@ -1,3 +1,4 @@
+#include <QLocale>
 #include "data/data.h"
 #include "temperaturegraphitem.h"
 #include "temperaturegraph.h"
@@ -16,11 +17,13 @@ TemperatureGraph::TemperatureGraph(QWidget *parent) : GraphTab(parent)
 void TemperatureGraph::setInfo()
 {
 	if (_showTracks) {
-		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale()
+		QLocale l(QLocale::system());
+
+		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale()
 		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Minimum"), QString::number(min() * yScale()
+		GraphView::addInfo(tr("Minimum"), l.toString(min() * yScale()
 		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
-		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale()
+		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale()
 		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
 	} else
 		clearInfo();

src/GUI/temperaturegraphitem.cpp

@@ -1,6 +1,8 @@
+#include <QLocale>
 #include "tooltip.h"
 #include "temperaturegraphitem.h"
 
+
 TemperatureGraphItem::TemperatureGraphItem(const Graph &graph, GraphType type,
   QGraphicsItem *parent) : GraphItem(graph, type, parent)
 {
@@ -20,12 +22,13 @@ QString TemperatureGraphItem::toolTip(Units units) const
 	qreal offset = (units == Metric) ? 0 : C2FO;
 	QString su = (units == Metric) ?
 	  QChar(0x00B0) + tr("C") : QChar(0x00B0) + tr("F");
+	QLocale l(QLocale::system());
 
-	tt.insert(tr("Average"), QString::number(avg() * scale + offset, 'f', 1)
+	tt.insert(tr("Average"), l.toString(avg() * scale + offset, 'f', 1)
 	  + UNIT_SPACE + su);
-	tt.insert(tr("Maximum"), QString::number(max() * scale + offset, 'f', 1)
+	tt.insert(tr("Maximum"), l.toString(max() * scale + offset, 'f', 1)
 	  + UNIT_SPACE + su);
-	tt.insert(tr("Minimum"), QString::number(min() * scale + offset, 'f', 1)
+	tt.insert(tr("Minimum"), l.toString(min() * scale + offset, 'f', 1)
 	  + UNIT_SPACE + su);
 
 	return tt.toString();