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129 lines
3.9 KiB
129 lines
3.9 KiB
// Copyright (c) 2011-2013 The Bitcoin developers |
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// Distributed under the MIT/X11 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 "amount.h" |
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#include <QAbstractListModel> |
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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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#define REAL_THIN_SP_HTML " " |
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// U+200A HAIR SPACE = UTF-8 E2 80 8A |
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#define HAIR_SP_CP 0x200A |
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#define HAIR_SP_UTF8 "\xE2\x80\x8A" |
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#define HAIR_SP_HTML " " |
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// U+2006 SIX-PER-EM SPACE = UTF-8 E2 80 86 |
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#define SIXPEREM_SP_CP 0x2006 |
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#define SIXPEREM_SP_UTF8 "\xE2\x80\x86" |
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#define SIXPEREM_SP_HTML " " |
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// U+2007 FIGURE SPACE = UTF-8 E2 80 87 |
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#define FIGURE_SP_CP 0x2007 |
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#define FIGURE_SP_UTF8 "\xE2\x80\x87" |
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#define FIGURE_SP_HTML " " |
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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 Unit |
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{ |
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BTC, |
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mBTC, |
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uBTC |
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}; |
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enum SeparatorStyle |
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{ |
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separatorNever, |
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separatorStandard, |
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separatorAlways |
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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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//! Is unit ID valid? |
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static bool valid(int unit); |
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//! Identifier, e.g. for image names |
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static QString id(int unit); |
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//! Short name |
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static QString name(int unit); |
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//! Longer description |
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static QString description(int unit); |
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//! Number of Satoshis (1e-8) per unit |
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static qint64 factor(int unit); |
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//! Number of decimals left |
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static int decimals(int unit); |
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//! Format as string |
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static QString format(int unit, const CAmount& amount, bool plussign=false, SeparatorStyle separators=separatorStandard); |
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//! Format as string (with unit) |
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static QString formatWithUnit(int unit, const CAmount& amount, bool plussign=false, SeparatorStyle separators=separatorStandard); |
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static QString formatHtmlWithUnit(int unit, const CAmount& amount, bool plussign=false, SeparatorStyle separators=separatorStandard); |
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//! Parse string to coin amount |
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static bool parse(int 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(int 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; |
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QVariant data(const QModelIndex &index, int role) const; |
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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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#if (THIN_SP_CP != REAL_THIN_SP_CP) |
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text.remove(QChar(REAL_THIN_SP_CP)); |
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#endif |
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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<BitcoinUnits::Unit> unitlist; |
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}; |
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typedef BitcoinUnits::Unit BitcoinUnit; |
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#endif // BITCOIN_QT_BITCOINUNITS_H
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