it compiles

src/addresscombo.cpp

@@ -27,13 +27,13 @@ void AddressCombo::setCurrentText(const QString& text) {
 void AddressCombo::addItem(const QString& text, double bal) {
     QString txt = AddressBook::addLabelToAddress(text);
     if (bal > 0)
-        txt = txt % "(" % Settings::getZECDisplayFormat(bal) % ")";
+        txt = txt % "(" % Settings::getDisplayFormat(bal) % ")";
         
     QComboBox::addItem(txt);
 }
 
 void AddressCombo::insertItem(int index, const QString& text, double bal) {
     QString txt = AddressBook::addLabelToAddress(text) % 
-                    "(" % Settings::getZECDisplayFormat(bal) % ")";
+                    "(" % Settings::getDisplayFormat(bal) % ")";
     QComboBox::insertItem(index, txt);
 }

src/balancestablemodel.cpp

@@ -87,7 +87,7 @@ QVariant BalancesTableModel::data(const QModelIndex &index, int role) const
     if (role == Qt::DisplayRole) {
         switch (index.column()) {
         case 0: return AddressBook::addLabelToAddress(std::get<0>(modeldata->at(index.row())));
-        case 1: return Settings::getZECDisplayFormat(std::get<1>(modeldata->at(index.row())));
+        case 1: return Settings::getDisplayFormat(std::get<1>(modeldata->at(index.row())));
         }
     }
 

src/mainwindow.cpp

@@ -1,4 +1,5 @@
 // Copyright 2019 The Hush Developers
+// Released under the GPLv3
 #include "mainwindow.h"
 #include "addressbook.h"
 #include "viewalladdresses.h"
@@ -266,6 +267,15 @@ void MainWindow::setupSettingsModal() {
             Settings::getInstance()->setSaveZtxs(checked);
         });
 
+        QString currency_name;
+        try {
+            currency_name = Settings::getInstance()->get_currency_name();
+        } catch (...) {
+            currency_name = "USD";
+        }
+
+        this->slot_change_currency(currency_name);
+
         // Setup clear button
         QObject::connect(settings.btnClearSaved, &QCheckBox::clicked, [=]() {
             if (QMessageBox::warning(this, "Clear saved history?",
@@ -283,8 +293,16 @@ void MainWindow::setupSettingsModal() {
         QObject::connect(settings.comboBoxTheme, SIGNAL(currentIndexChanged(QString)), this, SLOT(slot_change_theme(QString)));
         QObject::connect(settings.comboBoxTheme, &QComboBox::currentTextChanged, [=] (QString theme_name) {
             this->slot_change_theme(theme_name);
-            // Tell the user to restart
-            QMessageBox::information(this, tr("Restart"), tr("Please restart SilentDragon to have the theme apply"), QMessageBox::Ok);
+            QMessageBox::information(this, tr("Theme Change"), tr("This change can take a few seconds."), QMessageBox::Ok);
+        });
+
+        // Get Currency Data
+        int currency_index = settings.comboBoxCurrency->findText(Settings::getInstance()->get_currency_name(), Qt::MatchExactly);
+        settings.comboBoxCurrency->setCurrentIndex(currency_index);
+        QObject::connect(settings.comboBoxCurrency, &QComboBox::currentTextChanged, [=] (QString currency_name) {
+            this->slot_change_currency(currency_name);
+            rpc->refresh(true);
+            QMessageBox::information(this, tr("Currency Change"), tr("This change can take a few seconds."), QMessageBox::Ok);
         });
 
         // Save sent transactions
@@ -1284,18 +1302,30 @@ void MainWindow::updateLabels() {
     updateLabelsAutoComplete();
 }
 
+void MainWindow::slot_change_currency(const QString& currency_name)
+{
+    Settings::getInstance()->set_currency_name(currency_name);
+
+    // Include currency
+    QString saved_currency_name;
+    try {
+       saved_currency_name = Settings::getInstance()->get_currency_name();
+    } catch (const std::exception& e) {
+        qDebug() << QString("Ignoring currency change Exception! : ") << e.what();
+        saved_currency_name = "USD";
+    }
+}
+
 void MainWindow::slot_change_theme(const QString& theme_name)
 {
     Settings::getInstance()->set_theme_name(theme_name);
 
     // Include css
     QString saved_theme_name;
-    try
-    {
+    try {
        saved_theme_name = Settings::getInstance()->get_theme_name();
-    }
-    catch (...)
-    {
+    } catch (const std::exception& e) {
+        qDebug() << QString("Ignoring theme change Exception! : ") << e.what();
         saved_theme_name = "default";
     }
 

src/mainwindow.h

@@ -84,6 +84,7 @@ private:
     void setupMarketTab();
 
     void slot_change_theme(const QString& themeName);
+    void slot_change_currency(const QString& currencyName);
     void setupTurnstileDialog();
     void setupSettingsModal();
     void setupStatusBar();

src/rpc.cpp

@@ -801,9 +801,9 @@ void RPC::refreshBalances() {
 
         AppDataModel::getInstance()->setBalances(balT, balZ);
 
-        ui->balSheilded   ->setText(Settings::getZECDisplayFormat(balZ));
-        ui->balTransparent->setText(Settings::getZECDisplayFormat(balT));
-        ui->balTotal      ->setText(Settings::getZECDisplayFormat(balTotal));
+        ui->balSheilded   ->setText(Settings::getDisplayFormat(balZ));
+        ui->balTransparent->setText(Settings::getDisplayFormat(balT));
+        ui->balTotal      ->setText(Settings::getDisplayFormat(balTotal));
 
         ui->balSheilded   ->setToolTip(Settings::getUSDFormat(balZ));
         ui->balTransparent->setToolTip(Settings::getUSDFormat(balT));

src/sendtab.cpp

@@ -196,7 +196,7 @@ void MainWindow::updateFromCombo() {
 void MainWindow::inputComboTextChanged(int index) {
     auto addr   = ui->inputsCombo->itemText(index);
     auto bal    = rpc->getAllBalances()->value(addr);
-    auto balFmt = Settings::getZECDisplayFormat(bal);
+    auto balFmt = Settings::getDisplayFormat(bal);
 
     ui->sendAddressBalance->setText(balFmt);
     ui->sendAddressBalanceUSD->setText(Settings::getUSDFormat(bal));
@@ -598,7 +598,7 @@ bool MainWindow::confirmTx(Tx tx) {
             // Amount (HUSH)
             auto Amt = new QLabel(confirm.sendToAddrs);
             Amt->setObjectName(QString("Amt") % QString::number(i + 1));
-            Amt->setText(Settings::getZECDisplayFormat(toAddr.amount));
+            Amt->setText(Settings::getDisplayFormat(toAddr.amount));
             Amt->setAlignment(Qt::AlignRight | Qt::AlignTrailing | Qt::AlignVCenter);
             confirm.gridLayout->addWidget(Amt, row, 1, 1, 1);
             totalSpending += toAddr.amount;
@@ -648,7 +648,7 @@ bool MainWindow::confirmTx(Tx tx) {
         minerFee->setObjectName(QStringLiteral("minerFee"));
         minerFee->setAlignment(Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter);
         confirm.gridLayout->addWidget(minerFee, row, 1, 1, 1);
-        minerFee->setText(Settings::getZECDisplayFormat(tx.fee));
+        minerFee->setText(Settings::getDisplayFormat(tx.fee));
         totalSpending += tx.fee;
 
         auto minerFeeUSD = new QLabel(confirm.sendToAddrs);

src/senttxstore.cpp

@@ -90,7 +90,7 @@ void SentTxStore::addToSentTx(Tx tx, QString txid) {
     } else {
         // Concatenate all the toAddresses
         for (auto a : tx.toAddrs) {
-            toAddresses += a.addr % "(" % Settings::getZECDisplayFormat(a.amount) % ")  ";
+            toAddresses += a.addr % "(" % Settings::getDisplayFormat(a.amount) % ")  ";
         }
     }
 

src/settings.cpp

@@ -1,4 +1,5 @@
 // Copyright 2019 The Hush developers
+// Released under the GPLv3
 #include "mainwindow.h"
 #include "settings.h"
 
@@ -160,6 +161,15 @@ double Settings::getZECPrice() {
     return zecPrice;
 }
 
+double Settings::get_price(std::string currency) {
+    auto search = prices.find(currency);
+    if (search != prices.end()) {
+        return search->second;
+    } else {
+        return -1.0;
+    }
+}
+
 unsigned int Settings::getBTCPrice() {
     // in satoshis
     return btcPrice;
@@ -235,7 +245,7 @@ QString Settings::getDecimalString(double amt) {
     return f;
 }
 
-QString Settings::getZECDisplayFormat(double bal) {
+QString Settings::getDisplayFormat(double bal) {
     // This is idiotic. Why doesn't QString have a way to do this?
     return getDecimalString(bal) % " " % Settings::getTokenName();
 }
@@ -243,12 +253,12 @@ QString Settings::getZECDisplayFormat(double bal) {
 QString Settings::getZECUSDDisplayFormat(double bal) {
     auto usdFormat = getUSDFormat(bal);
     if (!usdFormat.isEmpty())
-        return getZECDisplayFormat(bal) % " (" % getUSDFormat(bal) % ")";
+        return getDisplayFormat(bal) % " (" % getUSDFormat(bal) % ")";
     else
-        return getZECDisplayFormat(bal);
+        return getDisplayFormat(bal);
 }
 
-const QString Settings::txidStatusMessage = QString(QObject::tr("Tx submitted (right click to copy) txid:"));
+const QString Settings::txidStatusMessage = QString(QObject::tr("Transaction submitted (right click to copy) txid:"));
 
 QString Settings::getTokenName() {
     if (Settings::getInstance()->isTestnet()) {
@@ -258,6 +268,7 @@ QString Settings::getTokenName() {
     }
 }
 
+//TODO: this isn't used for donations
 QString Settings::getDonationAddr() {
     if (Settings::getInstance()->isTestnet())  {
 	    return "ztestsaplingXXX";
@@ -278,6 +289,15 @@ bool Settings::addToZcashConf(QString confLocation, QString line) {
     return true;
 }
 
+QString Settings::get_currency_name() {
+    // Load from the QT Settings.
+    return QSettings().value("options/currency_name", false).toString();
+}
+
+void Settings::set_currency_name(QString currency_name) {
+    QSettings().setValue("options/currency_name", currency_name);
+}
+
 bool Settings::removeFromZcashConf(QString confLocation, QString option) {
     if (confLocation.isEmpty())
         return false;
@@ -337,7 +357,7 @@ bool Settings::isValidAddress(QString addr) {
 
 // Get a pretty string representation of this Payment URI
 QString Settings::paymentURIPretty(PaymentURI uri) {
-    return QString() + "Payment Request\n" + "Pay: " + uri.addr + "\nAmount: " + getZECDisplayFormat(uri.amt.toDouble())
+    return QString() + "Payment Request\n" + "Pay: " + uri.addr + "\nAmount: " + getDisplayFormat(uri.amt.toDouble())
         + "\nMemo:" + QUrl::fromPercentEncoding(uri.memo.toUtf8());
 }
 

src/settings.h

@@ -85,13 +85,19 @@ public:
     QString get_theme_name();
     void set_theme_name(QString theme_name);
 
+    QString get_currency_name();
+    void set_currency_name(QString currency_name);
+
     void    setUsingZcashConf(QString confLocation);
     const   QString& getZcashdConfLocation() { return _confLocation; }
 
-    void    setZECPrice(double p) { zecPrice = p; }
-    void    setBTCPrice(unsigned int p) { btcPrice = p; }
+    void    setZECPrice(double p)       { zecPrice = p;   }
+    void    set_fiat_price(double p)    { fiat_price = p; }
+    void    setBTCPrice(unsigned int p) { btcPrice = p;   }
     double  getZECPrice();
+    double  get_fiat_price();
     unsigned int  getBTCPrice();
+    double get_price(std::string currency);
 
     void    setPeers(int peers);
     int     getPeers();
@@ -110,7 +116,7 @@ public:
 
     static QString getDecimalString(double amt);
     static QString getUSDFormat(double bal);
-    static QString getZECDisplayFormat(double bal);
+    static QString getDisplayFormat(double bal);
     static QString getZECUSDDisplayFormat(double bal);
 
     static QString getTokenName();
@@ -152,7 +158,10 @@ private:
     int     _peerConnections  = 0;
 
     double  zecPrice          = 0.0;
-    unsigned int  btcPrice    = 0.0;
+    double  fiat_price        = 0.0;
+    unsigned int  btcPrice    = 0;
+    std::map<std::string, double> prices;
+
 };
 
 #endif // SETTINGS_H

src/settings.ui

@@ -161,6 +161,88 @@
          </property>
         </widget>
        </item>
+
+       <item row="16" column="0">
+        <widget class="QLabel" name="label_20">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="text">
+          <string>Local Currency</string>
+         </property>
+         <property name="alignment">
+          <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+         </property>
+        </widget>
+       </item>
+
+       <item row="16" column="1">
+      <widget class="QComboBox" name="comboBoxCurrency">
+       <property name="geometry">
+        <rect>
+         <x>80</x>
+         <y>150</y>
+         <width>80</width>
+         <height>25</height>
+        </rect>
+       </property>
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <item>
+        <property name="text">
+         <string>AUD</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>BTC</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>CAD</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>CHF</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>CNY</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>EUR</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>GBP</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>INR</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>USD</string>
+        </property>
+       </item>
+      </widget>
+      </item>
+
        <item row="15" column="1">
         <widget class="QComboBox" name="comboBoxTheme">
          <property name="sizePolicy">

src/txtablemodel.cpp

@@ -132,7 +132,7 @@ void TxTableModel::updateAllData() {
                         return addr;
                 }
         case 2: return QDateTime::fromMSecsSinceEpoch(modeldata->at(index.row()).datetime *  (qint64)1000).toLocalTime().toString();
-        case 3: return Settings::getZECDisplayFormat(modeldata->at(index.row()).amount);
+        case 3: return Settings::getDisplayFormat(modeldata->at(index.row()).amount);
         }
     }