src/statsyearjourneys.cpp

   1 #include "statsyearjourneys.h"
   2
   3 #define WINDOW (3)
   4
   5 StatsYearJourneys::StatsYearJourneys(JourneyModel * journeys) :
   6     journeys(journeys)
   7 {
   8     title = QString("Year view (journeys/mon + moving ave)");
   9     units = "";
  10 }
  11
  12 void StatsYearJourneys::update() {
  13     unsigned int count[12];
  14     unsigned int average[11 + WINDOW];
  15     int pos;
  16     QDate now;
  17     QDate start;
  18     QDate startave;
  19
  20     now = QDate::currentDate();
  21     start = now.addMonths(-12);
  22     startave = start.addMonths(1 - WINDOW);
  23
  24     barvalues.clear();
  25     linevalues.clear();
  26
  27     for (pos = 0; pos < 12; pos++) {
  28         count[pos] = 0u;
  29         average[pos] = 0u;
  30     }
  31
  32     foreach (Journey const &journey, journeys->getData()) {
  33         QDate date = journey.getStartDate();
  34         if (date > start) {
  35             count[(date.month() - now.month() + 11) % 12]++;
  36         }
  37         if (date > startave) {
  38             int month = (date.month() - now.month() + 11) % 12;
  39             for (pos = 0; pos < WINDOW; pos++) {
  40                 average[month + pos]++;
  41             }
  42         }
  43     }
  44
  45     labels = QStringList{"J", "F", "M", "A", "M", "J", "J", "A", "S", "O", "N", "D"};
  46     for (pos = 0; pos < now.month(); pos++) {
  47         // Rotate values
  48         labels.push_back(labels.takeFirst());
  49     }
  50
  51     maxval = 0.0;
  52     for (pos = 0; pos < 12; pos++) {
  53         if (count[pos] > maxval) {
  54             maxval = count[pos];
  55         }
  56         barvalues << (float)count[pos];
  57         linevalues << (float)average[pos] / (float)WINDOW;
  58     }
  59
  60     step = maxval > 5.0 ? qRound(maxval / 5.0) : (maxval / 5.0);
  61 }