void MyMoneyStorageDump::dumpPriceHistory(QTextStream& s, const equity_price_history history)
{
if (history.count() != 0) {
s << " Price History:\n";
equity_price_history::const_iterator it_price = history.begin();
while (it_price != history.end()) {
s << " " << it_price.key().toString() << ": " << it_price.data().toDouble() << "\n";
it_price++;
}
}
}
const QString KInvestmentListItem::calculateGain(const equity_price_history& history, int dayDifference, int monthDifference, bool YTD, bool& bNegative)
{
bNegative = false;
if(history.isEmpty())
{
return QString("0.0%");
}
else
{
bool bFoundCurrent = false, bFoundComparison = false;
QDate tempDate, comparisonDate = QDate::currentDate();
if(YTD)
{
//if it is YTD, set the date to 01/01/<current year>
comparisonDate.setYMD(comparisonDate.year(), 1, 1);
}
else
{
comparisonDate = comparisonDate.addDays(dayDifference);
comparisonDate = comparisonDate.addMonths(monthDifference);
}
MyMoneyMoney comparisonValue, currentValue;
//find the current value, or closest to the current value.
equity_price_history::ConstIterator itToday = history.end();
for(tempDate = QDate::currentDate(); tempDate >= comparisonDate; )
{
itToday = history.find(tempDate);
if(itToday != history.end())
{
currentValue = itToday.data();
bFoundCurrent = true;
break;
}
tempDate = tempDate.addDays(-1);
}
if(!bFoundCurrent)
{
return QString("0.0%");
}
//find a date that is closest to a week old, not older, and not today's date. Because its a QMap, this map
//should already be sorted earliest to latest.
for(equity_price_history::ConstIterator it = history.begin(); it != history.end(); ++it)
{
if(it.key() >= comparisonDate && it.key() < QDate::currentDate())
{
comparisonDate = it.key();
comparisonValue = it.data();
bFoundComparison = true;
break;
}
}
if(!bFoundComparison)
{
return QString("0.0%");
}
//qDebug("Current date/value to use is %s/%s, Previous is %s/%s", tempDate.toString().data(), currentValue.toString().data(), comparisonDate.toString().data(), comparisonValue.toString().data());
//compute the percentage difference
if(comparisonValue != currentValue)
{
double result = (currentValue.toDouble() / comparisonValue.toDouble()) * 100.0;
result -= 100.0;
if(result < 0.0)
{
bNegative = true;
}
QString ds = QString("%1%").arg(result, 0, 'f', 3);
return ds;
/*MyMoneyMoney result = (currentValue / comparisonValue);
result = result * 100;
result = result - 100;
qDebug("final result = %s", result.toString().data());
return QString(result.formatMoney("", 3) + "%");*/
}
}
return QString("");
}
