src/statsweekdayave.cpp

   1 #include "statsweekdayave.h"
   2
   3 StatsWeekdayAve::StatsWeekdayAve(JourneyModel * journeys) :
   4     journeys(journeys)
   5 {
   6     title = "Average journey time (mins)";
   7     units = "";
   8     labels = QStringList{"M", "T", "W", "Th", "F", "S", "Su"};
   9 }
  10
  11 void StatsWeekdayAve::update() {
  12     double duration[7];
  13     unsigned int count[7];
  14     int pos;
  15
  16     barvalues.clear();
  17
  18     for (pos = 0; pos < 7; pos++) {
  19         duration[pos] = 0.0;
  20         count[pos] = 0u;
  21     }
  22
  23     foreach (Journey const &journey, journeys->getData()) {
  24         QDate date = journey.getStartDate();
  25         int dayofweek = date.dayOfWeek() - 1;
  26         if (dayofweek >= 0) {
  27             duration[dayofweek] += journey.getDuration();
  28             count[dayofweek]++;
  29         }
  30     }
  31
  32     maxval = 0.0;
  33     for (pos = 0; pos < 7; pos++) {
  34         float result = 0.0f;
  35         if (count[pos] > 0) {
  36             result = ((duration[pos] / 60.0) / (double)count[pos]);
  37         }
  38         if (result > maxval) {
  39             maxval = result;
  40         }
  41         barvalues << result;
  42     }
  43
  44     step = maxval > 5.0 ? qRound(maxval / 5.0) : (maxval / 5.0);
  45 }