src/GUI/gearratiographitem.cpp

   1 #include <QMap>
   2 #include <QLocale>
   3 #include "tooltip.h"
   4 #include "gearratiographitem.h"
   5
   6
   7 GearRatioGraphItem::GearRatioGraphItem(const Graph &graph, GraphType type,
   8   int width, const QColor &color, QGraphicsItem *parent)
   9   : GraphItem(graph, type, width, color, Qt::SolidLine, parent)
  10 {
  11         for (int i = 0; i < graph.size(); i++) {
  12                 const GraphSegment &segment = graph.at(i);
  13                 for (int j = 1; j < segment.size(); j++) {
  14                         qreal dx = segment.at(j).s() - segment.at(j-1).s();
  15                         _map.insert(segment.at(j).y(), _map.value(segment.at(j).y()) + dx);
  16                 }
  17         }
  18
  19         qreal key = NAN, val = NAN;
  20         for (QMap<qreal, qreal>::const_iterator it = _map.constBegin();
  21           it != _map.constEnd(); ++it) {
  22                 if (std::isnan(val) || it.value() > val) {
  23                         val = it.value();
  24                         key = it.key();
  25                 }
  26         }
  27         _top = key;
  28 }
  29
  30 ToolTip GearRatioGraphItem::info() const
  31 {
  32         ToolTip tt;
  33         QLocale l(QLocale::system());
  34
  35         tt.insert(tr("Minimum"), l.toString(min(), 'f', 2));
  36         tt.insert(tr("Maximum"), l.toString(max(), 'f', 2));
  37         tt.insert(tr("Most used"), l.toString(top(), 'f', 2));
  38
  39         return tt;
  40 }