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135 lines
2.5 KiB
C++
135 lines
2.5 KiB
C++
#include <QLocale>
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#include "data/data.h"
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#include "temperaturegraphitem.h"
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#include "temperaturegraph.h"
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TemperatureGraph::TemperatureGraph(QWidget *parent) : GraphTab(parent)
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{
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_showTracks = true;
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setYUnits(Metric);
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setYLabel(tr("Temperature"));
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setSliderPrecision(1);
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}
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TemperatureGraph::~TemperatureGraph()
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{
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qDeleteAll(_tracks);
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}
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void TemperatureGraph::setInfo()
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{
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if (_showTracks) {
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QLocale l(QLocale::system());
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GraphView::addInfo(tr("Average"), l.toString(avg() * yScale()
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+ yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
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GraphView::addInfo(tr("Minimum"), l.toString(min() * yScale()
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+ yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
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GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale()
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+ yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
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} else
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clearInfo();
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}
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QList<GraphItem*> TemperatureGraph::loadData(const Data &data)
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{
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QList<GraphItem*> graphs;
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for (int i = 0; i < data.tracks().count(); i++) {
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const Track &track = data.tracks().at(i);
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const Graph &graph = track.temperature();
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if (!graph.isValid()) {
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_palette.nextColor();
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graphs.append(0);
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} else {
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TemperatureGraphItem *gi = new TemperatureGraphItem(graph,
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_graphType, _width, _palette.nextColor());
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gi->setUnits(_units);
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_tracks.append(gi);
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if (_showTracks)
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addGraph(gi);
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_avg.append(QPointF(track.distance(), gi->avg()));
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graphs.append(gi);
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}
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}
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for (int i = 0; i < data.routes().count(); i++) {
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_palette.nextColor();
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graphs.append(0);
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}
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for (int i = 0; i < data.areas().count(); i++)
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_palette.nextColor();
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setInfo();
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redraw();
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return graphs;
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}
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qreal TemperatureGraph::avg() const
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{
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qreal sum = 0, w = 0;
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for (int i = 0; i < _avg.size(); i++) {
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const QPointF &p = _avg.at(i);
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sum += p.y() * p.x();
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w += p.x();
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}
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return (sum / w);
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}
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void TemperatureGraph::clear()
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{
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qDeleteAll(_tracks);
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_tracks.clear();
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_avg.clear();
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GraphTab::clear();
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}
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void TemperatureGraph::setYUnits(Units units)
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{
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if (units == Metric) {
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GraphView::setYUnits(QChar(0x00B0) + tr("C"));
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setYScale(1);
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setYOffset(0);
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} else {
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GraphView::setYUnits(QChar(0x00B0) + tr("F"));
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setYScale(C2FS);
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setYOffset(C2FO);
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}
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}
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void TemperatureGraph::setUnits(Units units)
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{
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setYUnits(units);
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setInfo();
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GraphView::setUnits(units);
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}
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void TemperatureGraph::showTracks(bool show)
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{
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_showTracks = show;
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for (int i = 0; i < _tracks.size(); i++) {
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if (show)
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addGraph(_tracks.at(i));
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else
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removeGraph(_tracks.at(i));
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}
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setInfo();
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redraw();
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}
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