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Format money amount same way as server does.
This commit is contained in:
John Preston
parent
8cac76931e
commit
21b502c754
1 changed files with 79 additions and 70 deletions
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@ -14,42 +14,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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#include <sstream>
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#include <iostream>
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[[nodiscard]] QString FormatWithSeparators(
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double amount,
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char decimal,
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char thousands) {
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Expects(decimal != 0);
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// Thanks https://stackoverflow.com/a/5058949
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struct FormattingHelper : std::numpunct<char> {
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FormattingHelper(char decimal, char thousands)
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: decimal(decimal)
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, thousands(thousands) {
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}
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char do_decimal_point() const override { return decimal; }
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char do_thousands_sep() const override { return thousands; }
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char decimal = '.';
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char thousands = ',';
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};
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auto stream = std::ostringstream();
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auto helper = FormattingHelper(decimal, thousands ? thousands : '?');
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stream.imbue(std::locale(stream.getloc(), &helper));
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stream << std::fixed << amount;
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auto result = QString::fromStdString(stream.str());
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if (!thousands) {
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result.replace('?', QString());
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}
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return result;
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}
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namespace Ui {
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namespace {
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QString FormatTextWithReadyAndTotal(
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[[nodiscard]] QString FormatTextWithReadyAndTotal(
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tr::phrase<lngtag_ready, lngtag_total, lngtag_mb> phrase,
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qint64 ready,
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qint64 total) {
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@ -77,6 +45,40 @@ QString FormatTextWithReadyAndTotal(
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return phrase(tr::now, lt_ready, readyStr, lt_total, totalStr, lt_mb, mb);
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}
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[[nodiscard]] QString FormatWithSeparators(
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double amount,
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int precision,
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char decimal,
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char thousands) {
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Expects(decimal != 0);
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// Thanks https://stackoverflow.com/a/5058949
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struct FormattingHelper : std::numpunct<char> {
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FormattingHelper(char decimal, char thousands)
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: decimal(decimal)
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, thousands(thousands) {
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}
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char do_decimal_point() const override { return decimal; }
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char do_thousands_sep() const override { return thousands; }
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char decimal = '.';
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char thousands = ',';
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};
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auto stream = std::ostringstream();
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stream.imbue(std::locale(
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stream.getloc(),
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new FormattingHelper(decimal, thousands ? thousands : '?')));
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stream.precision(precision);
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stream << std::fixed << amount;
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auto result = QString::fromStdString(stream.str());
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if (!thousands) {
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result.replace('?', QString());
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}
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return result;
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}
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} // namespace
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QString FormatSizeText(qint64 size) {
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@ -321,42 +323,42 @@ QString FillAmountAndCurrency(int64 amount, const QString ¤cy) {
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});
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return base::flat_map<QString, Rule>(begin(pairs), end(pairs));
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}();
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static const auto kDenominators = base::flat_map<QString, int>{
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{ u"CLF"_q, 10000 },
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{ u"BHD"_q, 1000 },
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{ u"IQD"_q, 1000 },
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{ u"JOD"_q, 1000 },
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{ u"KWD"_q, 1000 },
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{ u"LYD"_q, 1000 },
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{ u"OMR"_q, 1000 },
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{ u"TND"_q, 1000 },
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{ u"BIF"_q, 1 },
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{ u"BYR"_q, 1 },
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{ u"CLP"_q, 1 },
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{ u"CVE"_q, 1 },
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{ u"DJF"_q, 1 },
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{ u"GNF"_q, 1 },
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{ u"ISK"_q, 1 },
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{ u"JPY"_q, 1 },
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{ u"KMF"_q, 1 },
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{ u"KRW"_q, 1 },
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{ u"MGA"_q, 1 },
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{ u"PYG"_q, 1 },
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{ u"RWF"_q, 1 },
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{ u"UGX"_q, 1 },
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{ u"UYI"_q, 1 },
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{ u"VND"_q, 1 },
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{ u"VUV"_q, 1 },
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{ u"XAF"_q, 1 },
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{ u"XOF"_q, 1 },
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{ u"XPF"_q, 1 },
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{ u"MRO"_q, 10 },
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static const auto kExponents = base::flat_map<QString, int>{
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{ u"CLF"_q, 4 },
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{ u"BHD"_q, 3 },
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{ u"IQD"_q, 3 },
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{ u"JOD"_q, 3 },
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{ u"KWD"_q, 3 },
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{ u"LYD"_q, 3 },
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{ u"OMR"_q, 3 },
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{ u"TND"_q, 3 },
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{ u"BIF"_q, 0 },
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{ u"BYR"_q, 0 },
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{ u"CLP"_q, 0 },
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{ u"CVE"_q, 0 },
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{ u"DJF"_q, 0 },
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{ u"GNF"_q, 0 },
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{ u"ISK"_q, 0 },
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{ u"JPY"_q, 0 },
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{ u"KMF"_q, 0 },
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{ u"KRW"_q, 0 },
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{ u"MGA"_q, 0 },
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{ u"PYG"_q, 0 },
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{ u"RWF"_q, 0 },
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{ u"UGX"_q, 0 },
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{ u"UYI"_q, 0 },
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{ u"VND"_q, 0 },
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{ u"VUV"_q, 0 },
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{ u"XAF"_q, 0 },
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{ u"XOF"_q, 0 },
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{ u"XPF"_q, 0 },
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{ u"MRO"_q, 1 },
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};
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const auto denominatorIt = kDenominators.find(currency);
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const auto denominator = (denominatorIt != end(kDenominators))
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? denominatorIt->second
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: 100;
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const auto value = amount / float64(denominator);
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const auto exponentIt = kExponents.find(currency);
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const auto exponent = (exponentIt != end(kExponents))
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? exponentIt->second
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: 2;
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const auto value = amount / std::pow(10., exponent);
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const auto ruleIt = kRulesMap.find(currency);
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if (ruleIt == end(kRulesMap)) {
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return QLocale::system().toCurrencyString(value, currency);
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@ -370,8 +372,15 @@ QString FillAmountAndCurrency(int64 amount, const QString ¤cy) {
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result.append(name);
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if (rule.space) result.append(' ');
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}
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result.append(
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FormatWithSeparators(value, rule.decimal, rule.thousands));
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const auto precision = (currency != u"IRR"_q
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|| std::floor(value) != value)
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? exponent
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: 0;
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result.append(FormatWithSeparators(
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value,
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precision,
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rule.decimal,
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rule.thousands));
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if (!rule.left) {
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if (rule.space) result.append(' ');
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result.append(name);
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