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core: C++-ify statistics.c

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The old code was wild: For the yearly statistics it would allocate
one entry per dive in the log. Of course, it would also leak
C-style strings.

Convert the whole thing to somewhat idiomatic C++.

Somewhat wasted work, because I'd like to convert the whole thing
to the new statistics code. But let's finish the conversion to C++
first.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2024-05-01 23:16:00 +02:00 • committed by bstoeger
parent 84219641de
commit 1daa4f0584
12 changed files with 496 additions and 582 deletions
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43
core/divelogexportlogic.cpp
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@ -75,45 +75,42 @@ static void exportHTMLstatistics(const QString filename, struct htmlExportSettin
QFile file(filename);
file.open(QIODevice::WriteOnly | QIODevice::Text);
QTextStream out(&file);
stats_summary_auto_free stats;
stats_t total_stats;
calculate_stats_summary(&stats, hes.selectedOnly);
stats_summary stats = calculate_stats_summary(hes.selectedOnly);
total_stats.selection_size = 0;
total_stats.total_time.seconds = 0;
int i = 0;
out << "divestat=[";
if (hes.yearlyStatistics) {
while (stats.stats_yearly != NULL && stats.stats_yearly[i].period) {
for (const auto &s: stats.stats_yearly) {
out << "{";
out << "\"YEAR\":\"" << stats.stats_yearly[i].period << "\",";
out << "\"DIVES\":\"" << stats.stats_yearly[i].selection_size << "\",";
out << "\"TOTAL_TIME\":\"" << get_dive_duration_string(stats.stats_yearly[i].total_time.seconds,
out << "\"YEAR\":\"" << s.period << "\",";
out << "\"DIVES\":\"" << s.selection_size << "\",";
out << "\"TOTAL_TIME\":\"" << get_dive_duration_string(s.total_time.seconds,
gettextFromC::tr("h"), gettextFromC::tr("min"), gettextFromC::tr("sec"), " ") << "\",";
out << "\"AVERAGE_TIME\":\"" << formatMinutes(stats.stats_yearly[i].total_time.seconds / stats.stats_yearly[i].selection_size) << "\",";
out << "\"SHORTEST_TIME\":\"" << formatMinutes(stats.stats_yearly[i].shortest_time.seconds) << "\",";
out << "\"LONGEST_TIME\":\"" << formatMinutes(stats.stats_yearly[i].longest_time.seconds) << "\",";
out << "\"AVG_DEPTH\":\"" << get_depth_string(stats.stats_yearly[i].avg_depth) << "\",";
out << "\"MIN_DEPTH\":\"" << get_depth_string(stats.stats_yearly[i].min_depth) << "\",";
out << "\"MAX_DEPTH\":\"" << get_depth_string(stats.stats_yearly[i].max_depth) << "\",";
out << "\"AVG_SAC\":\"" << get_volume_string(stats.stats_yearly[i].avg_sac) << "\",";
out << "\"MIN_SAC\":\"" << get_volume_string(stats.stats_yearly[i].min_sac) << "\",";
out << "\"MAX_SAC\":\"" << get_volume_string(stats.stats_yearly[i].max_sac) << "\",";
if (stats.stats_yearly[i].combined_count) {
out << "\"AVERAGE_TIME\":\"" << formatMinutes(s.total_time.seconds / s.selection_size) << "\",";
out << "\"SHORTEST_TIME\":\"" << formatMinutes(s.shortest_time.seconds) << "\",";
out << "\"LONGEST_TIME\":\"" << formatMinutes(s.longest_time.seconds) << "\",";
out << "\"AVG_DEPTH\":\"" << get_depth_string(s.avg_depth) << "\",";
out << "\"MIN_DEPTH\":\"" << get_depth_string(s.min_depth) << "\",";
out << "\"MAX_DEPTH\":\"" << get_depth_string(s.max_depth) << "\",";
out << "\"AVG_SAC\":\"" << get_volume_string(s.avg_sac) << "\",";
out << "\"MIN_SAC\":\"" << get_volume_string(s.min_sac) << "\",";
out << "\"MAX_SAC\":\"" << get_volume_string(s.max_sac) << "\",";
if (s.combined_count) {
temperature_t avg_temp;
avg_temp.mkelvin = stats.stats_yearly[i].combined_temp.mkelvin / stats.stats_yearly[i].combined_count;
avg_temp.mkelvin = s.combined_temp.mkelvin / s.combined_count;
out << "\"AVG_TEMP\":\"" << get_temperature_string(avg_temp) << "\",";
} else {
out << "\"AVG_TEMP\":\"0.0\",";
}
out << "\"MIN_TEMP\":\"" << (stats.stats_yearly[i].min_temp.mkelvin == 0 ? 0 : get_temperature_string(stats.stats_yearly[i].min_temp)) << "\",";
out << "\"MAX_TEMP\":\"" << (stats.stats_yearly[i].max_temp.mkelvin == 0 ? 0 : get_temperature_string(stats.stats_yearly[i].max_temp)) << "\",";
out << "\"MIN_TEMP\":\"" << (s.min_temp.mkelvin == 0 ? 0 : get_temperature_string(s.min_temp)) << "\",";
out << "\"MAX_TEMP\":\"" << (s.max_temp.mkelvin == 0 ? 0 : get_temperature_string(s.max_temp)) << "\",";
out << "},";
total_stats.selection_size += stats.stats_yearly[i].selection_size;
total_stats.total_time.seconds += stats.stats_yearly[i].total_time.seconds;
i++;
total_stats.selection_size += s.selection_size;
total_stats.total_time.seconds += s.total_time.seconds;
}
exportHTMLstatisticsTotal(out, &total_stats);
}