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GPXSee/src/GUI/temperaturegraph.cpp

109 lines
2.0 KiB
C++

#include "data/data.h"
#include "temperaturegraphitem.h"
#include "temperaturegraph.h"
TemperatureGraph::TemperatureGraph(QWidget *parent) : GraphTab(parent)
{
_showTracks = true;
setYUnits(Metric);
setYLabel(tr("Temperature"));
setSliderPrecision(1);
}
void TemperatureGraph::setInfo()
{
if (_showTracks) {
GraphView::addInfo(tr("Average"), QString::number(avg() * yScale()
+ yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
GraphView::addInfo(tr("Minimum"), QString::number(min() * yScale()
+ yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale()
+ yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
} else
clearInfo();
}
QList<GraphItem*> TemperatureGraph::loadData(const Data &data)
{
QList<GraphItem*> graphs;
for (int i = 0; i < data.tracks().count(); i++) {
const Graph &graph = data.tracks().at(i)->temperature();
if (graph.size() < 2) {
skipColor();
graphs.append(0);
} else {
TemperatureGraphItem *gi = new TemperatureGraphItem(graph,
_graphType);
GraphView::addGraph(gi);
_avg.append(QPointF(data.tracks().at(i)->distance(), gi->avg()));
graphs.append(gi);
}
}
for (int i = 0; i < data.routes().count(); i++) {
skipColor();
graphs.append(0);
}
setInfo();
redraw();
return graphs;
}
qreal TemperatureGraph::avg() const
{
qreal sum = 0, w = 0;
QList<QPointF>::const_iterator it;
for (it = _avg.begin(); it != _avg.end(); it++) {
sum += it->y() * it->x();
w += it->x();
}
return (sum / w);
}
void TemperatureGraph::clear()
{
_avg.clear();
GraphView::clear();
}
void TemperatureGraph::setYUnits(Units units)
{
if (units == Metric) {
GraphView::setYUnits(QChar(0x00B0) + tr("C"));
setYScale(1);
setYOffset(0);
} else {
GraphView::setYUnits(QChar(0x00B0) + tr("F"));
setYScale(C2FS);
setYOffset(C2FO);
}
}
void TemperatureGraph::setUnits(Units units)
{
setYUnits(units);
setInfo();
GraphView::setUnits(units);
}
void TemperatureGraph::showTracks(bool show)
{
_showTracks = show;
showGraph(show);
setInfo();
redraw();
}