src/GUI/temperaturegraph.cpp

   1 #include <QLocale>
   2 #include "data/data.h"
   3 #include "temperaturegraphitem.h"
   4 #include "temperaturegraph.h"
   5
   6
   7 TemperatureGraph::TemperatureGraph(QWidget *parent) : GraphTab(parent)
   8 {
   9         _showTracks = false;
  10
  11         setYUnits(Metric);
  12         setYLabel(tr("Temperature"));
  13
  14         setSliderPrecision(1);
  15 }
  16
  17 TemperatureGraph::~TemperatureGraph()
  18 {
  19         qDeleteAll(_tracks);
  20 }
  21
  22 void TemperatureGraph::setInfo()
  23 {
  24         if (_showTracks) {
  25                 QLocale l(QLocale::system());
  26
  27 #ifdef Q_OS_ANDROID
  28                 GraphView::addInfo(tr("Avg"), l.toString(avg() * yScale() + yOffset(),
  29                   'f', 1) + UNIT_SPACE + yUnits());
  30                 GraphView::addInfo(tr("Min"), l.toString(min() * yScale() + yOffset(),
  31                   'f', 1) + UNIT_SPACE + yUnits());
  32                 GraphView::addInfo(tr("Max"), l.toString(max() * yScale() + yOffset(),
  33                   'f', 1) + UNIT_SPACE + yUnits());
  34 #else // Q_OS_ANDROID
  35                 GraphView::addInfo(tr("Average"), l.toString(avg() * yScale()
  36                   + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
  37                 GraphView::addInfo(tr("Minimum"), l.toString(min() * yScale()
  38                   + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
  39                 GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale()
  40                   + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
  41 #endif // Q_OS_ANDROID
  42         } else
  43                 clearInfo();
  44 }
  45
  46 QList<GraphItem*> TemperatureGraph::loadData(const Data &data, Map *map)
  47 {
  48         Q_UNUSED(map);
  49         QList<GraphItem*> graphs;
  50
  51         for (int i = 0; i < data.tracks().count(); i++) {
  52                 const Track &track = data.tracks().at(i);
  53                 const Graph &graph = track.temperature();
  54
  55                 if (graph.isEmpty()) {
  56                         _palette.nextColor();
  57                         graphs.append(0);
  58                 } else {
  59                         TemperatureGraphItem *gi = new TemperatureGraphItem(graph,
  60                           _graphType, _width, _palette.nextColor());
  61                         gi->setUnits(_units);
  62
  63                         _tracks.append(gi);
  64                         if (_showTracks)
  65                                 addGraph(gi);
  66
  67                         _avg.append(QPointF(track.distance(), gi->avg()));
  68                         graphs.append(gi);
  69                 }
  70         }
  71
  72         for (int i = 0; i < data.routes().count(); i++) {
  73                 _palette.nextColor();
  74                 graphs.append(0);
  75         }
  76
  77         for (int i = 0; i < data.areas().count(); i++)
  78                 _palette.nextColor();
  79
  80         setInfo();
  81         redraw();
  82
  83         return graphs;
  84 }
  85
  86 qreal TemperatureGraph::avg() const
  87 {
  88         qreal sum = 0, w = 0;
  89
  90         for (int i = 0; i < _avg.size(); i++) {
  91                 const QPointF &p = _avg.at(i);
  92                 sum += p.y() * p.x();
  93                 w += p.x();
  94         }
  95
  96         return (sum / w);
  97 }
  98
  99 void TemperatureGraph::clear()
 100 {
 101         qDeleteAll(_tracks);
 102         _tracks.clear();
 103
 104         _avg.clear();
 105
 106         GraphTab::clear();
 107 }
 108
 109 void TemperatureGraph::setYUnits(Units units)
 110 {
 111         if (units == Metric) {
 112                 GraphView::setYUnits(QChar(0x00B0) + tr("C"));
 113                 setYScale(1);
 114                 setYOffset(0);
 115         } else {
 116                 GraphView::setYUnits(QChar(0x00B0) + tr("F"));
 117                 setYScale(C2FS);
 118                 setYOffset(C2FO);
 119         }
 120 }
 121
 122 void TemperatureGraph::setUnits(Units units)
 123 {
 124         setYUnits(units);
 125         setInfo();
 126
 127         GraphView::setUnits(units);
 128 }
 129
 130 void TemperatureGraph::showTracks(bool show)
 131 {
 132         _showTracks = show;
 133
 134         for (int i = 0; i < _tracks.size(); i++) {
 135                 if (show)
 136                         addGraph(_tracks.at(i));
 137                 else
 138                         removeGraph(_tracks.at(i));
 139         }
 140
 141         setInfo();
 142
 143         redraw();
 144 }