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152d5bad50
Since BitcoinUnits::Unit became a scoped enum, BitcoinUnits::valid function is no longer needed.
116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
// Copyright (c) 2011-2021 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_QT_BITCOINUNITS_H
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#define BITCOIN_QT_BITCOINUNITS_H
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#include <consensus/amount.h>
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#include <QAbstractListModel>
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#include <QDataStream>
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#include <QString>
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// U+2009 THIN SPACE = UTF-8 E2 80 89
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#define REAL_THIN_SP_CP 0x2009
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#define REAL_THIN_SP_UTF8 "\xE2\x80\x89"
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// QMessageBox seems to have a bug whereby it doesn't display thin/hair spaces
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// correctly. Workaround is to display a space in a small font. If you
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// change this, please test that it doesn't cause the parent span to start
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// wrapping.
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#define HTML_HACK_SP "<span style='white-space: nowrap; font-size: 6pt'> </span>"
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// Define THIN_SP_* variables to be our preferred type of thin space
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#define THIN_SP_CP REAL_THIN_SP_CP
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#define THIN_SP_UTF8 REAL_THIN_SP_UTF8
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#define THIN_SP_HTML HTML_HACK_SP
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/** Bitcoin unit definitions. Encapsulates parsing and formatting
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and serves as list model for drop-down selection boxes.
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*/
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class BitcoinUnits: public QAbstractListModel
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{
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Q_OBJECT
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public:
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explicit BitcoinUnits(QObject *parent);
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/** Bitcoin units.
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@note Source: https://en.bitcoin.it/wiki/Units . Please add only sensible ones
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*/
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enum class Unit {
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BTC,
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mBTC,
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uBTC,
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SAT
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};
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Q_ENUM(Unit)
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enum class SeparatorStyle
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{
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NEVER,
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STANDARD,
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ALWAYS
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};
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//! @name Static API
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//! Unit conversion and formatting
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///@{
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//! Get list of units, for drop-down box
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static QList<Unit> availableUnits();
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//! Long name
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static QString longName(Unit unit);
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//! Short name
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static QString shortName(Unit unit);
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//! Longer description
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static QString description(Unit unit);
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//! Number of Satoshis (1e-8) per unit
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static qint64 factor(Unit unit);
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//! Number of decimals left
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static int decimals(Unit unit);
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//! Format as string
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static QString format(Unit unit, const CAmount& amount, bool plussign = false, SeparatorStyle separators = SeparatorStyle::STANDARD, bool justify = false);
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//! Format as string (with unit)
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static QString formatWithUnit(Unit unit, const CAmount& amount, bool plussign = false, SeparatorStyle separators = SeparatorStyle::STANDARD);
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//! Format as HTML string (with unit)
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static QString formatHtmlWithUnit(Unit unit, const CAmount& amount, bool plussign = false, SeparatorStyle separators = SeparatorStyle::STANDARD);
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//! Format as string (with unit) of fixed length to preserve privacy, if it is set.
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static QString formatWithPrivacy(Unit unit, const CAmount& amount, SeparatorStyle separators, bool privacy);
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//! Parse string to coin amount
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static bool parse(Unit unit, const QString& value, CAmount* val_out);
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//! Gets title for amount column including current display unit if optionsModel reference available */
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static QString getAmountColumnTitle(Unit unit);
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///@}
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//! @name AbstractListModel implementation
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//! List model for unit drop-down selection box.
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///@{
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enum RoleIndex {
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/** Unit identifier */
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UnitRole = Qt::UserRole
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};
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int rowCount(const QModelIndex &parent) const override;
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QVariant data(const QModelIndex &index, int role) const override;
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///@}
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static QString removeSpaces(QString text)
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{
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text.remove(' ');
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text.remove(QChar(THIN_SP_CP));
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return text;
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}
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//! Return maximum number of base units (Satoshis)
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static CAmount maxMoney();
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private:
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QList<Unit> unitlist;
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};
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typedef BitcoinUnits::Unit BitcoinUnit;
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QDataStream& operator<<(QDataStream& out, const BitcoinUnit& unit);
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QDataStream& operator>>(QDataStream& in, BitcoinUnit& unit);
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#endif // BITCOIN_QT_BITCOINUNITS_H
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