add unit format menu selection for alternative grouping and decimal separators

src/main/java/com/sparrowwallet/sparrow/AppController.java

@@ -132,6 +132,9 @@ public class AppController implements Initializable {
     @FXML
     private ToggleGroup bitcoinUnit;
 
+    @FXML
+    private ToggleGroup unitFormat;
+
     @FXML
     private ToggleGroup theme;
 
@@ -325,6 +328,15 @@ public class AppController implements Initializable {
         Optional<Toggle> selectedUnitToggle = bitcoinUnit.getToggles().stream().filter(toggle -> selectedUnit.equals(toggle.getUserData())).findFirst();
         selectedUnitToggle.ifPresent(toggle -> bitcoinUnit.selectToggle(toggle));
 
+        UnitFormat format = Config.get().getUnitFormat();
+        if(format == null) {
+            format = UnitFormat.DOT;
+            Config.get().setUnitFormat(format);
+        }
+        final UnitFormat selectedFormat = format;
+        Optional<Toggle> selectedFormatToggle = unitFormat.getToggles().stream().filter(toggle -> selectedFormat.equals(toggle.getUserData())).findFirst();
+        selectedFormatToggle.ifPresent(toggle -> unitFormat.selectToggle(toggle));
+
         Theme configTheme = Config.get().getTheme();
         if(configTheme == null) {
             configTheme = Theme.LIGHT;
@@ -858,6 +870,13 @@ public class AppController implements Initializable {
         EventManager.get().post(new BitcoinUnitChangedEvent(unit));
     }
 
+    public void setUnitFormat(ActionEvent event) {
+        MenuItem item = (MenuItem)event.getSource();
+        UnitFormat format = (UnitFormat)item.getUserData();
+        Config.get().setUnitFormat(format);
+        EventManager.get().post(new UnitFormatChangedEvent(format));
+    }
+
     public void preventSleep(ActionEvent event) {
         CheckMenuItem item = (CheckMenuItem)event.getSource();
         Config.get().setPreventSleep(item.isSelected());
@@ -2698,6 +2717,12 @@ public class AppController implements Initializable {
         selectedToggle.ifPresent(toggle -> bitcoinUnit.selectToggle(toggle));
     }
 
+    @Subscribe
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
+        Optional<Toggle> selectedToggle = unitFormat.getToggles().stream().filter(toggle -> event.getUnitFormat().equals(toggle.getUserData())).findFirst();
+        selectedToggle.ifPresent(toggle -> unitFormat.selectToggle(toggle));
+    }
+
     @Subscribe
     public void openWalletsInNewWindowsStatusChanged(OpenWalletsNewWindowsStatusEvent event) {
         openWalletsInNewWindows.setSelected(event.isOpenWalletsInNewWindows());

src/main/java/com/sparrowwallet/sparrow/UnitFormat.java

@@ -0,0 +1,86 @@
+package com.sparrowwallet.sparrow;
+
+import com.sparrowwallet.drongo.protocol.Transaction;
+
+import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
+import java.util.Locale;
+
+public enum UnitFormat {
+    DOT {
+        private final DecimalFormat btcFormat = new DecimalFormat("0", DecimalFormatSymbols.getInstance(getLocale()));
+        private final DecimalFormat tableBtcFormat = new DecimalFormat("0.00000000", DecimalFormatSymbols.getInstance(getLocale()));
+        private final DecimalFormat currencyFormat = new DecimalFormat("#,##0.00", DecimalFormatSymbols.getInstance(getLocale()));
+
+        public DecimalFormat getBtcFormat() {
+            btcFormat.setMaximumFractionDigits(8);
+            return btcFormat;
+        }
+
+        public DecimalFormat getTableBtcFormat() {
+            return tableBtcFormat;
+        }
+
+        public DecimalFormat getCurrencyFormat() {
+            return currencyFormat;
+        }
+
+        public Locale getLocale() {
+            return Locale.ENGLISH;
+        }
+    },
+    COMMA {
+        private final DecimalFormat btcFormat = new DecimalFormat("0", DecimalFormatSymbols.getInstance(getLocale()));
+        private final DecimalFormat tableBtcFormat = new DecimalFormat("0.00000000", DecimalFormatSymbols.getInstance(getLocale()));
+        private final DecimalFormat currencyFormat = new DecimalFormat("#,##0.00", DecimalFormatSymbols.getInstance(getLocale()));
+
+        public DecimalFormat getBtcFormat() {
+            btcFormat.setMaximumFractionDigits(8);
+            return btcFormat;
+        }
+
+        public DecimalFormat getTableBtcFormat() {
+            return tableBtcFormat;
+        }
+
+        public DecimalFormat getCurrencyFormat() {
+            return currencyFormat;
+        }
+
+        public Locale getLocale() {
+            return Locale.GERMAN;
+        }
+    };
+
+    public abstract Locale getLocale();
+
+    public abstract DecimalFormat getBtcFormat();
+
+    public abstract DecimalFormat getTableBtcFormat();
+
+    public abstract DecimalFormat getCurrencyFormat();
+
+    public String formatBtcValue(Long amount) {
+        return getBtcFormat().format(amount.doubleValue() / Transaction.SATOSHIS_PER_BITCOIN);
+    }
+
+    public String formatSatsValue(Long amount) {
+        return String.format(getLocale(), "%,d", amount);
+    }
+
+    public String formatCurrencyValue(double amount) {
+        return getCurrencyFormat().format(amount);
+    }
+
+    public DecimalFormatSymbols getDecimalFormatSymbols() {
+        return DecimalFormatSymbols.getInstance(getLocale());
+    }
+
+    public String getGroupingSeparator() {
+        return Character.toString(getDecimalFormatSymbols().getGroupingSeparator());
+    }
+
+    public String getDecimalSeparator() {
+        return Character.toString(getDecimalFormatSymbols().getDecimalSeparator());
+    }
+}

src/main/java/com/sparrowwallet/sparrow/control/AddressTreeTable.java

@@ -20,7 +20,7 @@ import java.util.*;
 public class AddressTreeTable extends CoinTreeTable {
     public void initialize(NodeEntry rootEntry) {
         getStyleClass().add("address-treetable");
-        setBitcoinUnit(rootEntry.getWallet());
+        setUnitFormat(rootEntry.getWallet());
 
         String address = rootEntry.getAddress().toString();
         updateAll(rootEntry);
@@ -114,7 +114,7 @@ public class AddressTreeTable extends CoinTreeTable {
     }
 
     public void updateAll(NodeEntry rootEntry) {
-        setBitcoinUnit(rootEntry.getWallet());
+        setUnitFormat(rootEntry.getWallet());
 
         RecursiveTreeItem<Entry> rootItem = new RecursiveTreeItem<>(rootEntry, Entry::getChildren);
         setRoot(rootItem);

src/main/java/com/sparrowwallet/sparrow/control/BalanceChart.java

@@ -3,6 +3,7 @@ package com.sparrowwallet.sparrow.control;
 import com.google.common.collect.Lists;
 import com.sparrowwallet.drongo.BitcoinUnit;
 import com.sparrowwallet.drongo.wallet.Wallet;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.io.Config;
 import com.sparrowwallet.sparrow.wallet.Entry;
 import com.sparrowwallet.sparrow.wallet.TransactionEntry;
@@ -35,8 +36,7 @@ public class BalanceChart extends LineChart<Number, Number> {
         getData().add(balanceSeries);
         update(walletTransactionsEntry);
 
-        BitcoinUnit unit = Config.get().getBitcoinUnit();
+        setUnitFormat(walletTransactionsEntry.getWallet(), Config.get().getUnitFormat(), Config.get().getBitcoinUnit());
-        setBitcoinUnit(walletTransactionsEntry.getWallet(), unit);
     }
 
     public void update(WalletTransactionsEntry walletTransactionsEntry) {
@@ -116,12 +116,16 @@ public class BalanceChart extends LineChart<Number, Number> {
         }
     }
 
-    public void setBitcoinUnit(Wallet wallet, BitcoinUnit unit) {
+    public void setUnitFormat(Wallet wallet, UnitFormat format, BitcoinUnit unit) {
+        if(format == null) {
+            format = UnitFormat.DOT;
+        }
+
         if(unit == null || unit.equals(BitcoinUnit.AUTO)) {
             unit = wallet.getAutoUnit();
         }
 
         NumberAxis yaxis = (NumberAxis)getYAxis();
-        yaxis.setTickLabelFormatter(new CoinAxisFormatter(yaxis, unit));
+        yaxis.setTickLabelFormatter(new CoinAxisFormatter(yaxis, format, unit));
     }
 }

src/main/java/com/sparrowwallet/sparrow/control/CoinAxisFormatter.java

@@ -1,28 +1,31 @@
 package com.sparrowwallet.sparrow.control;
 
 import com.sparrowwallet.drongo.BitcoinUnit;
+import com.sparrowwallet.sparrow.UnitFormat;
 import javafx.scene.chart.NumberAxis;
 import javafx.util.StringConverter;
 
 import java.text.ParseException;
 
 final class CoinAxisFormatter extends StringConverter<Number> {
+    private final UnitFormat unitFormat;
     private final BitcoinUnit bitcoinUnit;
 
-    public CoinAxisFormatter(NumberAxis axis, BitcoinUnit unit) {
+    public CoinAxisFormatter(NumberAxis axis, UnitFormat format, BitcoinUnit unit) {
+        this.unitFormat = format;
         this.bitcoinUnit = unit;
     }
 
     @Override
     public String toString(Number object) {
         Double value = bitcoinUnit.getValue(object.longValue());
-        return CoinTextFormatter.COIN_FORMAT.format(value);
+        return new CoinTextFormatter(unitFormat).getCoinFormat().format(value);
     }
 
     @Override
     public Number fromString(String string) {
         try {
-            Number number = CoinTextFormatter.COIN_FORMAT.parse(string);
+            Number number = new CoinTextFormatter(unitFormat).getCoinFormat().parse(string);
             return bitcoinUnit.getSatsValue(number.doubleValue());
         } catch (ParseException e) {
             throw new RuntimeException(e);

src/main/java/com/sparrowwallet/sparrow/control/CoinCell.java

@@ -2,6 +2,7 @@ package com.sparrowwallet.sparrow.control;
 
 import com.sparrowwallet.drongo.BitcoinUnit;
 import com.sparrowwallet.drongo.protocol.Transaction;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.wallet.Entry;
 import com.sparrowwallet.sparrow.wallet.HashIndexEntry;
 import com.sparrowwallet.sparrow.wallet.TransactionEntry;
@@ -14,12 +15,8 @@ import javafx.util.Duration;
 import org.controlsfx.tools.Platform;
 
 import java.text.DecimalFormat;
-import java.text.DecimalFormatSymbols;
-import java.util.Locale;
 
 class CoinCell extends TreeTableCell<Entry, Number> {
-    public static final DecimalFormat TABLE_BTC_FORMAT = new DecimalFormat("0.00000000", DecimalFormatSymbols.getInstance(Locale.ENGLISH));
-
     private final Tooltip tooltip;
 
     public CoinCell() {
@@ -45,10 +42,11 @@ class CoinCell extends TreeTableCell<Entry, Number> {
             EntryCell.applyRowStyles(this, entry);
 
             CoinTreeTable coinTreeTable = (CoinTreeTable)getTreeTableView();
+            UnitFormat format = coinTreeTable.getUnitFormat();
             BitcoinUnit unit = coinTreeTable.getBitcoinUnit();
 
-            String satsValue = String.format(Locale.ENGLISH, "%,d", amount.longValue());
+            String satsValue = format.formatSatsValue(amount.longValue());
-            DecimalFormat decimalFormat = (amount.longValue() == 0L ? CoinLabel.getBTCFormat() : TABLE_BTC_FORMAT);
+            DecimalFormat decimalFormat = (amount.longValue() == 0L ? format.getBtcFormat() : format.getTableBtcFormat());
             final String btcValue = decimalFormat.format(amount.doubleValue() / Transaction.SATOSHIS_PER_BITCOIN);
 
             if(unit.equals(BitcoinUnit.BTC)) {
@@ -61,8 +59,7 @@ class CoinCell extends TreeTableCell<Entry, Number> {
             setTooltip(tooltip);
             String tooltipValue = tooltip.getText();
 
-            if(entry instanceof TransactionEntry) {
+            if(entry instanceof TransactionEntry transactionEntry) {
-                TransactionEntry transactionEntry = (TransactionEntry)entry;
                 tooltip.setText(tooltipValue + " (" + transactionEntry.getConfirmationsDescription() + ")");
 
                 transactionEntry.confirmationsProperty().addListener((observable, oldValue, newValue) -> {

src/main/java/com/sparrowwallet/sparrow/control/CoinLabel.java

@@ -1,7 +1,7 @@
 package com.sparrowwallet.sparrow.control;
 
 import com.sparrowwallet.drongo.BitcoinUnit;
-import com.sparrowwallet.drongo.protocol.Transaction;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.io.Config;
 import javafx.beans.property.LongProperty;
 import javafx.beans.property.SimpleLongProperty;
@@ -12,13 +12,7 @@ import javafx.scene.control.Tooltip;
 import javafx.scene.input.Clipboard;
 import javafx.scene.input.ClipboardContent;
 
-import java.text.DecimalFormat;
-import java.text.DecimalFormatSymbols;
-import java.util.Locale;
-
 public class CoinLabel extends Label {
-    public static final DecimalFormat BTC_FORMAT = new DecimalFormat("0", DecimalFormatSymbols.getInstance(Locale.ENGLISH));
-
     private final LongProperty valueProperty = new SimpleLongProperty(-1);
     private final Tooltip tooltip;
     private final CoinContextMenu contextMenu;
@@ -58,8 +52,9 @@ public class CoinLabel extends Label {
         setTooltip(tooltip);
         setContextMenu(contextMenu);
 
-        String satsValue = String.format(Locale.ENGLISH, "%,d", value) + " sats";
+        UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
-        String btcValue = BTC_FORMAT.format(value.doubleValue() / Transaction.SATOSHIS_PER_BITCOIN) + " BTC";
+        String satsValue = format.formatSatsValue(value) + " sats";
+        String btcValue = format.formatBtcValue(value) + " BTC";
 
         BitcoinUnit unit = bitcoinUnit;
         if(unit == null || unit.equals(BitcoinUnit.AUTO)) {
@@ -89,16 +84,12 @@ public class CoinLabel extends Label {
             copyBtcValue.setOnAction(AE -> {
                 hide();
                 ClipboardContent content = new ClipboardContent();
-                content.putString(BTC_FORMAT.format((double)getValue() / Transaction.SATOSHIS_PER_BITCOIN));
+                UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
+                content.putString(format.formatBtcValue(getValue()));
                 Clipboard.getSystemClipboard().setContent(content);
             });
 
             getItems().addAll(copySatsValue, copyBtcValue);
         }
     }
-
-    public static DecimalFormat getBTCFormat() {
-        BTC_FORMAT.setMaximumFractionDigits(8);
-        return BTC_FORMAT;
-    }
 }

src/main/java/com/sparrowwallet/sparrow/control/CoinTextFormatter.java

@@ -1,24 +1,39 @@
 package com.sparrowwallet.sparrow.control;
 
+import com.sparrowwallet.sparrow.UnitFormat;
 import javafx.scene.control.TextFormatter;
 import javafx.scene.control.TextInputControl;
 
 import java.text.DecimalFormat;
 import java.text.DecimalFormatSymbols;
 import java.text.ParseException;
-import java.util.Locale;
 import java.util.function.UnaryOperator;
 import java.util.regex.Pattern;
 
 public class CoinTextFormatter extends TextFormatter<String> {
-    private static final Pattern COIN_VALIDATION = Pattern.compile("[\\d,]*(\\.\\d{0,8})?");
+    public CoinTextFormatter(UnitFormat unitFormat) {
-    public static final DecimalFormat COIN_FORMAT = new DecimalFormat("###,###.########", DecimalFormatSymbols.getInstance(Locale.ENGLISH));
+        super(new CoinFilter(unitFormat));
+    }
 
-    public CoinTextFormatter() {
+    public UnitFormat getUnitFormat() {
-        super(new CoinFilter());
+        return ((CoinFilter)getFilter()).unitFormat;
+    }
+
+    public DecimalFormat getCoinFormat() {
+        return ((CoinFilter)getFilter()).coinFormat;
     }
 
     private static class CoinFilter implements UnaryOperator<Change> {
+        private final UnitFormat unitFormat;
+        private final DecimalFormat coinFormat;
+        private final Pattern coinValidation;
+
+        public CoinFilter(UnitFormat unitFormat) {
+            this.unitFormat = unitFormat == null ? UnitFormat.DOT : unitFormat;
+            this.coinFormat = new DecimalFormat("###,###.########", DecimalFormatSymbols.getInstance(unitFormat.getLocale()));
+            this.coinValidation = Pattern.compile("[\\d" + Pattern.quote(unitFormat.getGroupingSeparator()) + "]*(" + Pattern.quote(unitFormat.getDecimalSeparator()) + "\\d{0,8})?");
+        }
+
         @Override
         public Change apply(Change change) {
             String oldText = change.getControlText();
@@ -30,17 +45,17 @@ public class CoinTextFormatter extends TextFormatter<String> {
 
             String noFractionCommaText = newText;
             int commasRemoved = 0;
-            int dotIndex = newText.indexOf(".");
+            int dotIndex = newText.indexOf(unitFormat.getDecimalSeparator());
             if(dotIndex > -1) {
-                noFractionCommaText = newText.substring(0, dotIndex) + newText.substring(dotIndex).replaceAll(",", "");
+                noFractionCommaText = newText.substring(0, dotIndex) + newText.substring(dotIndex).replaceAll(Pattern.quote(unitFormat.getGroupingSeparator()), "");
                 commasRemoved = newText.length() - noFractionCommaText.length();
             }
 
-            if(!COIN_VALIDATION.matcher(noFractionCommaText).matches()) {
+            if(!coinValidation.matcher(noFractionCommaText).matches()) {
                 return null;
             }
 
-            if(",".equals(change.getText())) {
+            if(unitFormat.getGroupingSeparator().equals(change.getText())) {
                 return null;
             }
 
@@ -48,20 +63,20 @@ public class CoinTextFormatter extends TextFormatter<String> {
                 return change;
             }
 
-            if(change.isDeleted() && ",".equals(deleted) && change.getRangeStart() > 0) {
+            if(change.isDeleted() && unitFormat.getGroupingSeparator().equals(deleted) && change.getRangeStart() > 0) {
                 noFractionCommaText = noFractionCommaText.substring(0, change.getRangeStart() - 1) + noFractionCommaText.substring(change.getRangeEnd() - 1);
             }
 
             try {
-                Number value = COIN_FORMAT.parse(noFractionCommaText);
+                Number value = coinFormat.parse(noFractionCommaText);
-                String correct = COIN_FORMAT.format(value.doubleValue());
+                String correct = coinFormat.format(value.doubleValue());
 
                 String compare = newText;
-                if(compare.contains(".") && compare.endsWith("0")) {
+                if(compare.contains(unitFormat.getDecimalSeparator()) && compare.endsWith("0")) {
                     compare = compare.replaceAll("0*$", "");
                 }
 
-                if(compare.endsWith(".")) {
+                if(compare.endsWith(unitFormat.getDecimalSeparator())) {
                     compare = compare.substring(0, compare.length() - 1);
                 }
 
@@ -79,11 +94,11 @@ public class CoinTextFormatter extends TextFormatter<String> {
 
                 if(correct.length() != newText.length()) {
                     String postCorrect = correct.substring(Math.min(change.getCaretPosition(), correct.length()));
-                    int commasAfter = postCorrect.length() - postCorrect.replace(",", "").length();
+                    int commasAfter = postCorrect.length() - postCorrect.replace(unitFormat.getGroupingSeparator(), "").length();
-                    int caretShift = change.isDeleted() && ".".equals(deleted) ? commasAfter : 0;
+                    int caretShift = change.isDeleted() && unitFormat.getDecimalSeparator().equals(deleted) ? commasAfter : 0;
 
                     int caret = change.getCaretPosition() + (correct.length() - newText.length() - caretShift) + commasRemoved;
-                    if(caret >= 0) {
+                    if(caret >= 0 && caret <= change.getControlNewText().length()) {
                         change.setCaretPosition(caret);
                         change.setAnchor(caret);
                     }

src/main/java/com/sparrowwallet/sparrow/control/CoinTreeTable.java

@@ -2,6 +2,7 @@ package com.sparrowwallet.sparrow.control;
 
 import com.sparrowwallet.drongo.BitcoinUnit;
 import com.sparrowwallet.drongo.wallet.Wallet;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.event.WalletAddressesChangedEvent;
@@ -26,25 +27,36 @@ import java.util.Optional;
 
 public class CoinTreeTable extends TreeTableView<Entry> {
     private BitcoinUnit bitcoinUnit;
+    private UnitFormat unitFormat;
 
     public BitcoinUnit getBitcoinUnit() {
         return bitcoinUnit;
     }
 
-    public void setBitcoinUnit(BitcoinUnit bitcoinUnit) {
+    public UnitFormat getUnitFormat() {
-        this.bitcoinUnit = bitcoinUnit;
+        return unitFormat;
     }
 
-    public void setBitcoinUnit(Wallet wallet) {
+    public void setUnitFormat(Wallet wallet) {
-        setBitcoinUnit(wallet, Config.get().getBitcoinUnit());
+        setUnitFormat(wallet, Config.get().getUnitFormat(), Config.get().getBitcoinUnit());
+    }
+
+    public void setUnitFormat(Wallet wallet, UnitFormat format) {
+        setUnitFormat(wallet, format, Config.get().getBitcoinUnit());
+    }
+
+    public void setUnitFormat(Wallet wallet, UnitFormat format, BitcoinUnit unit) {
+        if(format == null) {
+            format = UnitFormat.DOT;
         }
 
-    public void setBitcoinUnit(Wallet wallet, BitcoinUnit unit) {
         if(unit == null || unit.equals(BitcoinUnit.AUTO)) {
             unit = wallet.getAutoUnit();
         }
 
-        boolean changed = (bitcoinUnit != unit);
+        boolean changed = (unitFormat != format);
+        changed |= (bitcoinUnit != unit);
+        this.unitFormat = format;
         this.bitcoinUnit = unit;
 
         if(changed && !getChildren().isEmpty()) {

src/main/java/com/sparrowwallet/sparrow/control/CopyableCoinLabel.java

@@ -1,7 +1,7 @@
 package com.sparrowwallet.sparrow.control;
 
 import com.sparrowwallet.drongo.BitcoinUnit;
-import com.sparrowwallet.drongo.protocol.Transaction;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.io.Config;
 import javafx.beans.property.LongProperty;
 import javafx.beans.property.SimpleLongProperty;
@@ -11,8 +11,6 @@ import javafx.scene.control.Tooltip;
 import javafx.scene.input.Clipboard;
 import javafx.scene.input.ClipboardContent;
 
-import java.util.Locale;
-
 public class CopyableCoinLabel extends CopyableLabel {
     private final LongProperty valueProperty = new SimpleLongProperty(-1);
     private final Tooltip tooltip;
@@ -24,7 +22,7 @@ public class CopyableCoinLabel extends CopyableLabel {
 
     public CopyableCoinLabel(String text) {
         super(text);
-        valueProperty().addListener((observable, oldValue, newValue) -> setValueAsText((Long)newValue, Config.get().getBitcoinUnit()));
+        valueProperty().addListener((observable, oldValue, newValue) -> setValueAsText((Long)newValue, Config.get().getUnitFormat(), Config.get().getBitcoinUnit()));
         tooltip = new Tooltip();
         contextMenu = new CoinContextMenu();
     }
@@ -42,19 +40,23 @@ public class CopyableCoinLabel extends CopyableLabel {
     }
 
     public void refresh() {
-        refresh(Config.get().getBitcoinUnit());
+        refresh(Config.get().getUnitFormat(), Config.get().getBitcoinUnit());
     }
 
-    public void refresh(BitcoinUnit bitcoinUnit) {
+    public void refresh(UnitFormat unitFormat, BitcoinUnit bitcoinUnit) {
-        setValueAsText(getValue(), bitcoinUnit);
+        setValueAsText(getValue(), unitFormat, bitcoinUnit);
     }
 
-    private void setValueAsText(Long value, BitcoinUnit bitcoinUnit) {
+    private void setValueAsText(Long value, UnitFormat unitFormat, BitcoinUnit bitcoinUnit) {
         setTooltip(tooltip);
         setContextMenu(contextMenu);
 
-        String satsValue = String.format(Locale.ENGLISH, "%,d", value) + " sats";
+        if(unitFormat == null) {
-        String btcValue = CoinLabel.getBTCFormat().format(value.doubleValue() / Transaction.SATOSHIS_PER_BITCOIN) + " BTC";
+            unitFormat = UnitFormat.DOT;
+        }
+
+        String satsValue = unitFormat.formatSatsValue(value) + " sats";
+        String btcValue = unitFormat.formatBtcValue(value) + " BTC";
 
         BitcoinUnit unit = bitcoinUnit;
         if(unit == null || unit.equals(BitcoinUnit.AUTO)) {
@@ -84,7 +86,8 @@ public class CopyableCoinLabel extends CopyableLabel {
             copyBtcValue.setOnAction(AE -> {
                 hide();
                 ClipboardContent content = new ClipboardContent();
-                content.putString(CoinLabel.getBTCFormat().format((double)getValue() / Transaction.SATOSHIS_PER_BITCOIN));
+                UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
+                content.putString(format.formatBtcValue(getValue()));
                 Clipboard.getSystemClipboard().setContent(content);
             });
 

src/main/java/com/sparrowwallet/sparrow/control/FiatLabel.java

@@ -1,7 +1,9 @@
 package com.sparrowwallet.sparrow.control;
 
 import com.sparrowwallet.drongo.protocol.Transaction;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.CurrencyRate;
+import com.sparrowwallet.sparrow.io.Config;
 import javafx.beans.property.*;
 import javafx.scene.control.ContextMenu;
 import javafx.scene.control.MenuItem;
@@ -10,14 +12,9 @@ import javafx.scene.input.Clipboard;
 import javafx.scene.input.ClipboardContent;
 
 import java.math.BigDecimal;
-import java.text.DecimalFormat;
-import java.text.DecimalFormatSymbols;
 import java.util.Currency;
-import java.util.Locale;
 
 public class FiatLabel extends CopyableLabel {
-    private static final DecimalFormat CURRENCY_FORMAT = new DecimalFormat("#,##0.00", DecimalFormatSymbols.getInstance(Locale.ENGLISH));
-
     private final LongProperty valueProperty = new SimpleLongProperty(-1);
     private final DoubleProperty btcRateProperty = new SimpleDoubleProperty(0.0);
     private final ObjectProperty<Currency> currencyProperty = new SimpleObjectProperty<>(null);
@@ -30,9 +27,9 @@ public class FiatLabel extends CopyableLabel {
 
     public FiatLabel(String text) {
         super(text);
-        valueProperty().addListener((observable, oldValue, newValue) -> setValueAsText((Long)newValue));
+        valueProperty().addListener((observable, oldValue, newValue) -> setValueAsText((Long)newValue, Config.get().getUnitFormat()));
-        btcRateProperty().addListener((observable, oldValue, newValue) -> setValueAsText(getValue()));
+        btcRateProperty().addListener((observable, oldValue, newValue) -> setValueAsText(getValue(), Config.get().getUnitFormat()));
-        currencyProperty().addListener((observable, oldValue, newValue) -> setValueAsText(getValue()));
+        currencyProperty().addListener((observable, oldValue, newValue) -> setValueAsText(getValue(), Config.get().getUnitFormat()));
         tooltip = new Tooltip();
         contextMenu = new FiatContextMenu();
     }
@@ -83,14 +80,22 @@ public class FiatLabel extends CopyableLabel {
         setCurrency(currency);
     }
 
-    private void setValueAsText(long balance) {
+    public void refresh() {
+        refresh(Config.get().getUnitFormat());
+    }
+
+    public void refresh(UnitFormat unitFormat) {
+        setValueAsText(getValue(), unitFormat);
+    }
+
+    private void setValueAsText(long balance, UnitFormat unitFormat) {
         if(getCurrency() != null && getBtcRate() > 0.0) {
             BigDecimal satsBalance = BigDecimal.valueOf(balance);
             BigDecimal btcBalance = satsBalance.divide(BigDecimal.valueOf(Transaction.SATOSHIS_PER_BITCOIN));
             BigDecimal fiatBalance = btcBalance.multiply(BigDecimal.valueOf(getBtcRate()));
 
-            String label = getCurrency().getSymbol() + " " + CURRENCY_FORMAT.format(fiatBalance.doubleValue());
+            String label = getCurrency().getSymbol() + " " + unitFormat.formatCurrencyValue(fiatBalance.doubleValue());
-            tooltip.setText("1 BTC = " + getCurrency().getSymbol() + " " + CURRENCY_FORMAT.format(getBtcRate()));
+            tooltip.setText("1 BTC = " + getCurrency().getSymbol() + " " + unitFormat.formatCurrencyValue(getBtcRate()));
 
             setText(label);
             setTooltip(tooltip);

src/main/java/com/sparrowwallet/sparrow/control/SearchWalletDialog.java

@@ -74,7 +74,7 @@ public class SearchWalletDialog extends Dialog<Entry> {
         results = new CoinTreeTable();
         results.setShowRoot(false);
         results.setPrefWidth(showWallet ? 950 : 850);
-        results.setBitcoinUnit(walletForms.iterator().next().getWallet());
+        results.setUnitFormat(walletForms.iterator().next().getWallet());
         results.setColumnResizePolicy(TreeTableView.CONSTRAINED_RESIZE_POLICY);
         results.setPlaceholder(new Label("No results"));
 

src/main/java/com/sparrowwallet/sparrow/control/TransactionDiagram.java

@@ -3,10 +3,10 @@ package com.sparrowwallet.sparrow.control;
 import com.sparrowwallet.drongo.KeyPurpose;
 import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.protocol.Sha256Hash;
-import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.protocol.TransactionOutput;
 import com.sparrowwallet.drongo.uri.BitcoinURI;
 import com.sparrowwallet.drongo.wallet.*;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.Theme;
@@ -56,8 +56,6 @@ import java.util.*;
 import java.util.List;
 import java.util.stream.Collectors;
 
-import static com.sparrowwallet.sparrow.control.CoinLabel.BTC_FORMAT;
-
 public class TransactionDiagram extends GridPane {
     private static final int MAX_UTXOS = 8;
     private static final int REDUCED_MAX_UTXOS = MAX_UTXOS - 2;
@@ -1334,7 +1332,8 @@ public class TransactionDiagram extends GridPane {
             copyBtcValue.setOnAction(event -> {
                 hide();
                 ClipboardContent content = new ClipboardContent();
-                content.putString(BTC_FORMAT.format((double)value / Transaction.SATOSHIS_PER_BITCOIN));
+                UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
+                content.putString(format.formatBtcValue(value));
                 Clipboard.getSystemClipboard().setContent(content);
             });
             getItems().addAll(copySatsValue, copyBtcValue);

src/main/java/com/sparrowwallet/sparrow/control/TransactionsTreeTable.java

@@ -1,6 +1,5 @@
 package com.sparrowwallet.sparrow.control;
 
-import com.sparrowwallet.drongo.wallet.WalletNode;
 import com.sparrowwallet.sparrow.wallet.Entry;
 import com.sparrowwallet.sparrow.wallet.TransactionEntry;
 import com.sparrowwallet.sparrow.wallet.WalletTransactionsEntry;
@@ -8,12 +7,10 @@ import javafx.beans.property.ReadOnlyObjectWrapper;
 import javafx.scene.control.TreeTableColumn;
 import javafx.scene.control.TreeTableView;
 
-import java.util.List;
-
 public class TransactionsTreeTable extends CoinTreeTable {
     public void initialize(WalletTransactionsEntry rootEntry) {
         getStyleClass().add("transactions-treetable");
-        setBitcoinUnit(rootEntry.getWallet());
+        setUnitFormat(rootEntry.getWallet());
 
         updateAll(rootEntry);
         setShowRoot(false);
@@ -58,7 +55,7 @@ public class TransactionsTreeTable extends CoinTreeTable {
     }
 
     public void updateAll(WalletTransactionsEntry rootEntry) {
-        setBitcoinUnit(rootEntry.getWallet());
+        setUnitFormat(rootEntry.getWallet());
 
         RecursiveTreeItem<Entry> rootItem = new RecursiveTreeItem<>(rootEntry, Entry::getChildren);
         setRoot(rootItem);

src/main/java/com/sparrowwallet/sparrow/control/UtxosChart.java

@@ -2,6 +2,7 @@ package com.sparrowwallet.sparrow.control;
 
 import com.sparrowwallet.drongo.BitcoinUnit;
 import com.sparrowwallet.drongo.wallet.Wallet;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.io.Config;
 import com.sparrowwallet.sparrow.wallet.Entry;
 import com.sparrowwallet.sparrow.wallet.UtxoEntry;
@@ -36,8 +37,7 @@ public class UtxosChart extends BarChart<String, Number> {
         getData().add(utxoSeries);
         update(walletUtxosEntry);
 
-        BitcoinUnit unit = Config.get().getBitcoinUnit();
+        setUnitFormat(walletUtxosEntry.getWallet(), Config.get().getUnitFormat(), Config.get().getBitcoinUnit());
-        setBitcoinUnit(walletUtxosEntry.getWallet(), unit);
     }
 
     public void update(WalletUtxosEntry walletUtxosEntry) {
@@ -117,12 +117,16 @@ public class UtxosChart extends BarChart<String, Number> {
         this.selectedEntries = entries;
     }
 
-    public void setBitcoinUnit(Wallet wallet, BitcoinUnit unit) {
+    public void setUnitFormat(Wallet wallet, UnitFormat format, BitcoinUnit unit) {
+        if(format == null) {
+            format = UnitFormat.DOT;
+        }
+
         if(unit == null || unit.equals(BitcoinUnit.AUTO)) {
             unit = wallet.getAutoUnit();
         }
 
         NumberAxis yaxis = (NumberAxis)getYAxis();
-        yaxis.setTickLabelFormatter(new CoinAxisFormatter(yaxis, unit));
+        yaxis.setTickLabelFormatter(new CoinAxisFormatter(yaxis, format, unit));
     }
 }

src/main/java/com/sparrowwallet/sparrow/control/UtxosTreeTable.java

@@ -1,20 +1,17 @@
 package com.sparrowwallet.sparrow.control;
 
-import com.sparrowwallet.drongo.wallet.WalletNode;
 import com.sparrowwallet.sparrow.wallet.*;
 import javafx.beans.property.ReadOnlyObjectWrapper;
 import javafx.scene.control.SelectionMode;
-import javafx.scene.control.TableColumnBase;
 import javafx.scene.control.TreeTableColumn;
 import javafx.scene.control.TreeTableView;
 
 import java.util.Comparator;
-import java.util.List;
 
 public class UtxosTreeTable extends CoinTreeTable {
     public void initialize(WalletUtxosEntry rootEntry) {
         getStyleClass().add("utxos-treetable");
-        setBitcoinUnit(rootEntry.getWallet());
+        setUnitFormat(rootEntry.getWallet());
 
         updateAll(rootEntry);
         setShowRoot(false);
@@ -93,7 +90,7 @@ public class UtxosTreeTable extends CoinTreeTable {
     }
 
     public void updateAll(WalletUtxosEntry rootEntry) {
-        setBitcoinUnit(rootEntry.getWallet());
+        setUnitFormat(rootEntry.getWallet());
 
         RecursiveTreeItem<Entry> rootItem = new RecursiveTreeItem<>(rootEntry, Entry::getChildren);
         setRoot(rootItem);

src/main/java/com/sparrowwallet/sparrow/event/BitcoinUnitChangedEvent.java

@@ -1,11 +1,19 @@
 package com.sparrowwallet.sparrow.event;
 
 import com.sparrowwallet.drongo.BitcoinUnit;
+import com.sparrowwallet.sparrow.UnitFormat;
+import com.sparrowwallet.sparrow.io.Config;
 
-public class BitcoinUnitChangedEvent {
+public class BitcoinUnitChangedEvent extends UnitFormatChangedEvent {
     private final BitcoinUnit bitcoinUnit;
 
     public BitcoinUnitChangedEvent(BitcoinUnit bitcoinUnit) {
+        super(Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat());
+        this.bitcoinUnit = bitcoinUnit;
+    }
+
+    public BitcoinUnitChangedEvent(UnitFormat unitFormat, BitcoinUnit bitcoinUnit) {
+        super(unitFormat);
         this.bitcoinUnit = bitcoinUnit;
     }
 

src/main/java/com/sparrowwallet/sparrow/event/NewWalletTransactionsEvent.java

@@ -1,10 +1,9 @@
 package com.sparrowwallet.sparrow.event;
 
 import com.sparrowwallet.drongo.BitcoinUnit;
-import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.wallet.BlockTransaction;
 import com.sparrowwallet.drongo.wallet.Wallet;
-import com.sparrowwallet.sparrow.control.CoinLabel;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.io.Config;
 import com.sparrowwallet.sparrow.wallet.Entry;
 import com.sparrowwallet.sparrow.wallet.HashIndexEntry;
@@ -13,7 +12,6 @@ import com.sparrowwallet.sparrow.wallet.TransactionHashIndexEntry;
 
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Locale;
 import java.util.stream.Collectors;
 
 public class NewWalletTransactionsEvent {
@@ -50,16 +48,21 @@ public class NewWalletTransactionsEvent {
     }
 
     public String getValueAsText(long value) {
+        UnitFormat format = Config.get().getUnitFormat();
+        if(format == null) {
+            format = UnitFormat.DOT;
+        }
+
         BitcoinUnit unit = Config.get().getBitcoinUnit();
         if(unit == null || unit.equals(BitcoinUnit.AUTO)) {
             unit = (value >= BitcoinUnit.getAutoThreshold() ? BitcoinUnit.BTC : BitcoinUnit.SATOSHIS);
         }
 
         if(unit == BitcoinUnit.BTC) {
-            return CoinLabel.getBTCFormat().format((double) value / Transaction.SATOSHIS_PER_BITCOIN) + " BTC";
+            return format.formatBtcValue(value) + " BTC";
         }
 
-        return String.format(Locale.ENGLISH, "%,d", value) + " sats";
+        return format.formatSatsValue(value) + " sats";
     }
 
     public List<BlockTransaction> getUnspentConfirmingWhirlpoolMixTransactions() {

src/main/java/com/sparrowwallet/sparrow/event/UnitFormatChangedEvent.java

@@ -0,0 +1,21 @@
+package com.sparrowwallet.sparrow.event;
+
+import com.sparrowwallet.drongo.BitcoinUnit;
+import com.sparrowwallet.sparrow.UnitFormat;
+import com.sparrowwallet.sparrow.io.Config;
+
+public class UnitFormatChangedEvent {
+    private final UnitFormat unitFormat;
+
+    public UnitFormatChangedEvent(UnitFormat unitFormat) {
+        this.unitFormat = unitFormat;
+    }
+
+    public UnitFormat getUnitFormat() {
+        return unitFormat;
+    }
+
+    public BitcoinUnit getBitcoinUnit() {
+        return Config.get().getBitcoinUnit();
+    }
+}

src/main/java/com/sparrowwallet/sparrow/io/Config.java

@@ -2,6 +2,7 @@ package com.sparrowwallet.sparrow.io;
 
 import com.google.gson.*;
 import com.sparrowwallet.drongo.BitcoinUnit;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.Mode;
 import com.sparrowwallet.sparrow.Theme;
 import com.sparrowwallet.sparrow.net.*;
@@ -27,6 +28,7 @@ public class Config {
 
     private Mode mode;
     private BitcoinUnit bitcoinUnit;
+    private UnitFormat unitFormat;
     private FeeRatesSource feeRatesSource;
     private FeeRatesSelection feeRatesSelection;
     private OptimizationStrategy sendOptimizationStrategy;
@@ -133,6 +135,15 @@ public class Config {
         flush();
     }
 
+    public UnitFormat getUnitFormat() {
+        return unitFormat;
+    }
+
+    public void setUnitFormat(UnitFormat unitFormat) {
+        this.unitFormat = unitFormat;
+        flush();
+    }
+
     public FeeRatesSource getFeeRatesSource() {
         return feeRatesSource;
     }

src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java

@@ -1270,8 +1270,8 @@ public class HeadersController extends TransactionFormController implements Init
     }
 
     @Subscribe
-    public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
-        fee.refresh(event.getBitcoinUnit());
+        fee.refresh(event.getUnitFormat(), event.getBitcoinUnit());
     }
 
     @Subscribe

src/main/java/com/sparrowwallet/sparrow/transaction/InputController.java

@@ -529,8 +529,8 @@ public class InputController extends TransactionFormController implements Initia
     }
 
     @Subscribe
-    public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
-        spends.refresh(event.getBitcoinUnit());
+        spends.refresh(event.getUnitFormat(), event.getBitcoinUnit());
     }
 
     @Subscribe

src/main/java/com/sparrowwallet/sparrow/transaction/InputsController.java

@@ -9,10 +9,7 @@ import com.sparrowwallet.drongo.wallet.Keystore;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.CopyableCoinLabel;
 import com.sparrowwallet.sparrow.control.CopyableLabel;
-import com.sparrowwallet.sparrow.event.BitcoinUnitChangedEvent;
+import com.sparrowwallet.sparrow.event.*;
-import com.sparrowwallet.sparrow.event.BlockTransactionFetchedEvent;
-import com.sparrowwallet.sparrow.event.PSBTCombinedEvent;
-import com.sparrowwallet.sparrow.event.PSBTFinalizedEvent;
 import javafx.collections.MapChangeListener;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
@@ -170,8 +167,8 @@ public class InputsController extends TransactionFormController implements Initi
     }
 
     @Subscribe
-    public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
-        total.refresh(event.getBitcoinUnit());
+        total.refresh(event.getUnitFormat(), event.getBitcoinUnit());
     }
 
     @Subscribe

src/main/java/com/sparrowwallet/sparrow/transaction/OutputController.java

@@ -9,7 +9,7 @@ import com.sparrowwallet.drongo.wallet.BlockTransaction;
 import com.sparrowwallet.drongo.wallet.Wallet;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.*;
-import com.sparrowwallet.sparrow.event.BitcoinUnitChangedEvent;
+import com.sparrowwallet.sparrow.event.UnitFormatChangedEvent;
 import com.sparrowwallet.sparrow.event.BlockTransactionOutputsFetchedEvent;
 import com.sparrowwallet.sparrow.event.ViewTransactionEvent;
 import com.sparrowwallet.sparrow.net.ElectrumServer;
@@ -175,7 +175,7 @@ public class OutputController extends TransactionFormController implements Initi
     }
 
     @Subscribe
-    public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
-        value.refresh(event.getBitcoinUnit());
+        value.refresh(event.getUnitFormat(), event.getBitcoinUnit());
     }
 }

src/main/java/com/sparrowwallet/sparrow/transaction/OutputsController.java

@@ -6,7 +6,7 @@ import com.sparrowwallet.drongo.protocol.TransactionOutput;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.CopyableCoinLabel;
 import com.sparrowwallet.sparrow.control.CopyableLabel;
-import com.sparrowwallet.sparrow.event.BitcoinUnitChangedEvent;
+import com.sparrowwallet.sparrow.event.UnitFormatChangedEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
 import javafx.scene.chart.PieChart;
@@ -57,7 +57,7 @@ public class OutputsController extends TransactionFormController implements Init
     }
 
     @Subscribe
-    public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
-        total.refresh(event.getBitcoinUnit());
+        total.refresh(event.getUnitFormat(), event.getBitcoinUnit());
     }
 }

src/main/java/com/sparrowwallet/sparrow/transaction/TransactionFormController.java

@@ -4,12 +4,11 @@ import com.google.common.eventbus.Subscribe;
 import com.sparrowwallet.drongo.BitcoinUnit;
 import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.protocol.NonStandardScriptException;
-import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.protocol.TransactionOutput;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.BaseController;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.TransactionTabData;
-import com.sparrowwallet.sparrow.control.CoinLabel;
 import com.sparrowwallet.sparrow.event.TransactionTabsClosedEvent;
 import com.sparrowwallet.sparrow.io.Config;
 import javafx.collections.FXCollections;
@@ -22,7 +21,6 @@ import javafx.scene.input.Clipboard;
 import javafx.scene.input.ClipboardContent;
 
 import java.util.List;
-import java.util.Locale;
 
 public abstract class TransactionFormController extends BaseController {
     private static final int MAX_PIE_SEGMENTS = 200;
@@ -64,13 +62,14 @@ public abstract class TransactionFormController extends BaseController {
             return;
         }
 
+        UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
         pie.setData(outputsPieData);
         final double totalSum = outputsPieData.stream().map(PieChart.Data::getPieValue).mapToDouble(Double::doubleValue).sum();
         pie.getData().forEach(data -> {
             Tooltip tooltip = new Tooltip();
             double percent = 100.0 * (data.getPieValue() / totalSum);
-            String satsValue = String.format(Locale.ENGLISH, "%,d", (long)data.getPieValue()) + " sats";
+            String satsValue = format.formatSatsValue((long)data.getPieValue()) + " sats";
-            String btcValue = CoinLabel.BTC_FORMAT.format(data.getPieValue() / Transaction.SATOSHIS_PER_BITCOIN) + " BTC";
+            String btcValue = format.formatBtcValue((long)data.getPieValue()) + " BTC";
             tooltip.setText(data.getName() + "\n" + (Config.get().getBitcoinUnit() == BitcoinUnit.BTC ? btcValue : satsValue) + " (" + String.format("%.1f", percent) + "%)");
             Tooltip.install(data.getNode(), tooltip);
             data.pieValueProperty().addListener((observable, oldValue, newValue) -> tooltip.setText(newValue + "%"));

src/main/java/com/sparrowwallet/sparrow/wallet/AddressesController.java

@@ -88,9 +88,9 @@ public class AddressesController extends WalletFormController implements Initial
     }
 
     @Subscribe
-    public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
-        receiveTable.setBitcoinUnit(getWalletForm().getWallet(), event.getBitcoinUnit());
+        receiveTable.setUnitFormat(getWalletForm().getWallet(), event.getUnitFormat(), event.getBitcoinUnit());
-        changeTable.setBitcoinUnit(getWalletForm().getWallet(), event.getBitcoinUnit());
+        changeTable.setUnitFormat(getWalletForm().getWallet(), event.getUnitFormat(), event.getBitcoinUnit());
     }
 
     @Subscribe

src/main/java/com/sparrowwallet/sparrow/wallet/PaymentController.java

@@ -14,6 +14,7 @@ import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.protocol.TransactionOutput;
 import com.sparrowwallet.drongo.uri.BitcoinURI;
 import com.sparrowwallet.drongo.wallet.*;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.CurrencyRate;
 import com.sparrowwallet.sparrow.EventManager;
@@ -50,6 +51,7 @@ import java.net.URL;
 import java.text.DecimalFormat;
 import java.text.DecimalFormatSymbols;
 import java.util.*;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
 import static com.sparrowwallet.sparrow.AppServices.showErrorDialog;
@@ -240,7 +242,7 @@ public class PaymentController extends WalletFormController implements Initializ
             sendController.updateTransaction();
         });
 
-        amount.setTextFormatter(new CoinTextFormatter());
+        amount.setTextFormatter(new CoinTextFormatter(Config.get().getUnitFormat()));
         amount.textProperty().addListener(amountListener);
 
         amountUnit.getSelectionModel().select(BitcoinUnit.BTC.equals(sendController.getBitcoinUnit(Config.get().getBitcoinUnit())) ? 0 : 1);
@@ -390,8 +392,13 @@ public class PaymentController extends WalletFormController implements Initializ
     }
 
     private Long getRecipientValueSats(BitcoinUnit bitcoinUnit) {
+        return getRecipientValueSats(Config.get().getUnitFormat(), bitcoinUnit);
+    }
+
+    private Long getRecipientValueSats(UnitFormat unitFormat, BitcoinUnit bitcoinUnit) {
         if(amount.getText() != null && !amount.getText().isEmpty()) {
-            double fieldValue = Double.parseDouble(amount.getText().replaceAll(",", ""));
+            UnitFormat format = unitFormat == null ? UnitFormat.DOT : unitFormat;
+            double fieldValue = Double.parseDouble(amount.getText().replaceAll(Pattern.quote(format.getGroupingSeparator()), "").replaceAll(",", "."));
             return bitcoinUnit.getSatsValue(fieldValue);
         }
 
@@ -400,7 +407,8 @@ public class PaymentController extends WalletFormController implements Initializ
 
     private void setRecipientValueSats(long recipientValue) {
         amount.textProperty().removeListener(amountListener);
-        DecimalFormat df = new DecimalFormat("#.#", DecimalFormatSymbols.getInstance(Locale.ENGLISH));
+        UnitFormat unitFormat = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
+        DecimalFormat df = new DecimalFormat("#.#", unitFormat.getDecimalFormatSymbols());
         df.setMaximumFractionDigits(8);
         amount.setText(df.format(amountUnit.getValue().getValue(recipientValue)));
         amount.textProperty().addListener(amountListener);
@@ -621,6 +629,19 @@ public class PaymentController extends WalletFormController implements Initializ
         amountUnit.getSelectionModel().select(BitcoinUnit.BTC.equals(unit) ? 0 : 1);
     }
 
+    @Subscribe
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
+        if(amount.getTextFormatter() instanceof CoinTextFormatter coinTextFormatter && coinTextFormatter.getUnitFormat() != event.getUnitFormat()) {
+            Long value = getRecipientValueSats(coinTextFormatter.getUnitFormat(), event.getBitcoinUnit());
+            amount.setTextFormatter(new CoinTextFormatter(event.getUnitFormat()));
+
+            if(value != null) {
+                setRecipientValueSats(value);
+            }
+        }
+        fiatAmount.refresh(event.getUnitFormat());
+    }
+
     @Subscribe
     public void fiatCurrencySelected(FiatCurrencySelectedEvent event) {
         if(event.getExchangeSource() == ExchangeSource.NONE) {

src/main/java/com/sparrowwallet/sparrow/wallet/SendController.java

@@ -13,6 +13,7 @@ import com.sparrowwallet.drongo.crypto.ECKey;
 import com.sparrowwallet.drongo.protocol.*;
 import com.sparrowwallet.drongo.psbt.PSBT;
 import com.sparrowwallet.drongo.wallet.*;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.CurrencyRate;
 import com.sparrowwallet.sparrow.EventManager;
@@ -61,8 +62,8 @@ import tornadofx.control.Field;
 import java.io.IOException;
 import java.net.URL;
 import java.text.DecimalFormat;
-import java.text.DecimalFormatSymbols;
 import java.util.*;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
 import static com.sparrowwallet.sparrow.AppServices.*;
@@ -354,7 +355,7 @@ public class SendController extends WalletFormController implements Initializabl
             };
         });
 
-        fee.setTextFormatter(new CoinTextFormatter());
+        fee.setTextFormatter(new CoinTextFormatter(Config.get().getUnitFormat()));
         fee.textProperty().addListener(feeListener);
 
         BitcoinUnit unit = getBitcoinUnit(Config.get().getBitcoinUnit());
@@ -737,8 +738,13 @@ public class SendController extends WalletFormController implements Initializabl
     }
 
     private Long getFeeValueSats(BitcoinUnit bitcoinUnit) {
+        return getFeeValueSats(Config.get().getUnitFormat(), bitcoinUnit);
+    }
+
+    private Long getFeeValueSats(UnitFormat unitFormat, BitcoinUnit bitcoinUnit) {
         if(fee.getText() != null && !fee.getText().isEmpty()) {
-            double fieldValue = Double.parseDouble(fee.getText().replaceAll(",", ""));
+            UnitFormat format = unitFormat == null ? UnitFormat.DOT : unitFormat;
+            double fieldValue = Double.parseDouble(fee.getText().replaceAll(Pattern.quote(format.getGroupingSeparator()), "").replaceAll(",", "."));
             return bitcoinUnit.getSatsValue(fieldValue);
         }
 
@@ -747,7 +753,8 @@ public class SendController extends WalletFormController implements Initializabl
 
     private void setFeeValueSats(long feeValue) {
         fee.textProperty().removeListener(feeListener);
-        DecimalFormat df = new DecimalFormat("#.#", DecimalFormatSymbols.getInstance(Locale.ENGLISH));
+        UnitFormat unitFormat = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
+        DecimalFormat df = new DecimalFormat("#.#", unitFormat.getDecimalFormatSymbols());
         df.setMaximumFractionDigits(8);
         fee.setText(df.format(feeAmountUnit.getValue().getValue(feeValue)));
         fee.textProperty().addListener(feeListener);
@@ -1533,6 +1540,19 @@ public class SendController extends WalletFormController implements Initializabl
         feeAmountUnit.getSelectionModel().select(BitcoinUnit.BTC.equals(unit) ? 0 : 1);
     }
 
+    @Subscribe
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
+        if(fee.getTextFormatter() instanceof CoinTextFormatter coinTextFormatter && coinTextFormatter.getUnitFormat() != event.getUnitFormat()) {
+            Long value = getFeeValueSats(coinTextFormatter.getUnitFormat(), event.getBitcoinUnit());
+            fee.setTextFormatter(new CoinTextFormatter(event.getUnitFormat()));
+
+            if(value != null) {
+                setFeeValueSats(value);
+            }
+        }
+        fiatFeeAmount.refresh(event.getUnitFormat());
+    }
+
     @Subscribe
     public void fiatCurrencySelected(FiatCurrencySelectedEvent event) {
         if(event.getExchangeSource() == ExchangeSource.NONE) {

src/main/java/com/sparrowwallet/sparrow/wallet/TransactionsController.java

@@ -3,7 +3,7 @@ package com.sparrowwallet.sparrow.wallet;
 import com.csvreader.CsvWriter;
 import com.google.common.eventbus.Subscribe;
 import com.sparrowwallet.drongo.BitcoinUnit;
-import com.sparrowwallet.drongo.protocol.Transaction;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.*;
@@ -141,9 +141,8 @@ public class TransactionsController extends WalletFormController implements Init
     }
 
     private String getCoinValue(Long value) {
-        return BitcoinUnit.BTC.equals(transactionsTable.getBitcoinUnit()) ?
+        UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
-                CoinLabel.getBTCFormat().format(value.doubleValue() / Transaction.SATOSHIS_PER_BITCOIN) :
+        return BitcoinUnit.BTC.equals(transactionsTable.getBitcoinUnit()) ? format.formatBtcValue(value) : String.format(Locale.ENGLISH, "%d", value);
-                String.format(Locale.ENGLISH, "%d", value);
     }
 
     private void logMessage(String logMessage) {
@@ -201,11 +200,13 @@ public class TransactionsController extends WalletFormController implements Init
     }
 
     @Subscribe
-    public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
-        transactionsTable.setBitcoinUnit(getWalletForm().getWallet(), event.getBitcoinUnit());
+        transactionsTable.setUnitFormat(getWalletForm().getWallet(), event.getUnitFormat(), event.getBitcoinUnit());
-        balanceChart.setBitcoinUnit(getWalletForm().getWallet(), event.getBitcoinUnit());
+        balanceChart.setUnitFormat(getWalletForm().getWallet(), event.getUnitFormat(), event.getBitcoinUnit());
-        balance.refresh(event.getBitcoinUnit());
+        balance.refresh(event.getUnitFormat(), event.getBitcoinUnit());
-        mempoolBalance.refresh(event.getBitcoinUnit());
+        mempoolBalance.refresh(event.getUnitFormat(), event.getBitcoinUnit());
+        fiatBalance.refresh(event.getUnitFormat());
+        fiatMempoolBalance.refresh(event.getUnitFormat());
     }
 
     @Subscribe

src/main/java/com/sparrowwallet/sparrow/wallet/UtxosController.java

@@ -9,8 +9,8 @@ import com.sparrowwallet.drongo.SecureString;
 import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.address.InvalidAddressException;
 import com.sparrowwallet.drongo.crypto.*;
-import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.wallet.*;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.*;
@@ -189,7 +189,7 @@ public class UtxosController extends WalletFormController implements Initializab
         utxosTable.getSelectionModel().getSelectedIndices().addListener((ListChangeListener<Integer>) c -> {
             List<Entry> selectedEntries = utxosTable.getSelectionModel().getSelectedCells().stream().filter(tp -> tp.getTreeItem() != null).map(tp -> tp.getTreeItem().getValue()).collect(Collectors.toList());
             utxosChart.select(selectedEntries);
-            updateButtons(Config.get().getBitcoinUnit());
+            updateButtons(Config.get().getUnitFormat(), Config.get().getBitcoinUnit());
             updateUtxoCount(getWalletForm().getWalletUtxosEntry());
         });
     }
@@ -210,7 +210,7 @@ public class UtxosController extends WalletFormController implements Initializab
         return WhirlpoolServices.canWalletMix(getWalletForm().getWallet());
     }
 
-    private void updateButtons(BitcoinUnit unit) {
+    private void updateButtons(UnitFormat format, BitcoinUnit unit) {
         List<Entry> selectedEntries = getSelectedEntries();
 
         selectAll.setDisable(utxosTable.getRoot().getChildren().size() == utxosTable.getSelectionModel().getSelectedCells().size());
@@ -220,16 +220,20 @@ public class UtxosController extends WalletFormController implements Initializab
 
         long selectedTotal = selectedEntries.stream().mapToLong(Entry::getValue).sum();
         if(selectedTotal > 0) {
+            if(format == null) {
+                format = UnitFormat.DOT;
+            }
+
             if(unit == null || unit.equals(BitcoinUnit.AUTO)) {
                 unit = (selectedTotal >= BitcoinUnit.getAutoThreshold() ? BitcoinUnit.BTC : BitcoinUnit.SATOSHIS);
             }
 
             if(unit.equals(BitcoinUnit.BTC)) {
-                sendSelected.setText("Send Selected (" + CoinLabel.getBTCFormat().format((double)selectedTotal / Transaction.SATOSHIS_PER_BITCOIN) + " BTC)");
+                sendSelected.setText("Send Selected (" + format.formatBtcValue(selectedTotal) + " BTC)");
-                mixSelected.setText("Mix Selected (" + CoinLabel.getBTCFormat().format((double)selectedTotal / Transaction.SATOSHIS_PER_BITCOIN) + " BTC)");
+                mixSelected.setText("Mix Selected (" + format.formatBtcValue(selectedTotal) + " BTC)");
             } else {
-                sendSelected.setText("Send Selected (" + String.format(Locale.ENGLISH, "%,d", selectedTotal) + " sats)");
+                sendSelected.setText("Send Selected (" + format.formatSatsValue(selectedTotal) + " sats)");
-                mixSelected.setText("Mix Selected (" + String.format(Locale.ENGLISH, "%,d", selectedTotal) + " sats)");
+                mixSelected.setText("Mix Selected (" + format.formatSatsValue(selectedTotal) + " sats)");
             }
         } else {
             sendSelected.setText("Send Selected");
@@ -486,9 +490,8 @@ public class UtxosController extends WalletFormController implements Initializab
     }
 
     private String getCoinValue(Long value) {
-        return BitcoinUnit.BTC.equals(utxosTable.getBitcoinUnit()) ?
+        UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
-                CoinLabel.getBTCFormat().format(value.doubleValue() / Transaction.SATOSHIS_PER_BITCOIN) :
+        return BitcoinUnit.BTC.equals(utxosTable.getBitcoinUnit()) ? format.formatBtcValue(value) : String.format(Locale.ENGLISH, "%d", value);
-                String.format(Locale.ENGLISH, "%d", value);
     }
 
     private static Glyph getExternalGlyph() {
@@ -546,12 +549,14 @@ public class UtxosController extends WalletFormController implements Initializab
     }
 
     @Subscribe
-    public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
+    public void unitFormatChanged(UnitFormatChangedEvent event) {
-        utxosTable.setBitcoinUnit(getWalletForm().getWallet(), event.getBitcoinUnit());
+        utxosTable.setUnitFormat(getWalletForm().getWallet(), event.getUnitFormat(), event.getBitcoinUnit());
-        utxosChart.setBitcoinUnit(getWalletForm().getWallet(), event.getBitcoinUnit());
+        utxosChart.setUnitFormat(getWalletForm().getWallet(), event.getUnitFormat(), event.getBitcoinUnit());
-        balance.refresh(event.getBitcoinUnit());
+        balance.refresh(event.getUnitFormat(), event.getBitcoinUnit());
-        mempoolBalance.refresh(event.getBitcoinUnit());
+        mempoolBalance.refresh(event.getUnitFormat(), event.getBitcoinUnit());
-        updateButtons(event.getBitcoinUnit());
+        updateButtons(event.getUnitFormat(), event.getBitcoinUnit());
+        fiatBalance.refresh(event.getUnitFormat());
+        fiatMempoolBalance.refresh(event.getUnitFormat());
     }
 
     @Subscribe
@@ -588,7 +593,7 @@ public class UtxosController extends WalletFormController implements Initializab
     public void walletUtxoStatusChanged(WalletUtxoStatusChangedEvent event) {
         if(event.fromThisOrNested(getWalletForm().getWallet())) {
             utxosTable.refresh();
-            updateButtons(Config.get().getBitcoinUnit());
+            updateButtons(Config.get().getUnitFormat(), Config.get().getBitcoinUnit());
         }
     }
 

src/main/java/com/sparrowwallet/sparrow/whirlpool/WhirlpoolController.java

@@ -5,12 +5,11 @@ import com.samourai.whirlpool.client.tx0.Tx0Previews;
 import com.samourai.whirlpool.client.wallet.beans.Tx0FeeTarget;
 import com.samourai.whirlpool.client.whirlpool.beans.Pool;
 import com.sparrowwallet.drongo.BitcoinUnit;
-import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.wallet.MixConfig;
 import com.sparrowwallet.drongo.wallet.Wallet;
+import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
-import com.sparrowwallet.sparrow.control.CoinLabel;
 import com.sparrowwallet.sparrow.control.CopyableCoinLabel;
 import com.sparrowwallet.sparrow.control.CopyableLabel;
 import com.sparrowwallet.sparrow.event.WalletMasterMixConfigChangedEvent;
@@ -157,9 +156,10 @@ public class WhirlpoolController {
                     return "Fetching pools...";
                 }
 
+                UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
                 BitcoinUnit bitcoinUnit = wallet.getAutoUnit();
-                String satsValue = String.format(Locale.ENGLISH, "%,d", selectedPool.getDenomination()) + " sats";
+                String satsValue = format.formatSatsValue(selectedPool.getDenomination()) + " sats";
-                String btcValue = CoinLabel.BTC_FORMAT.format((double)selectedPool.getDenomination() / Transaction.SATOSHIS_PER_BITCOIN) + " BTC";
+                String btcValue = format.formatBtcValue(selectedPool.getDenomination()) + " BTC";
 
                 pool.setTooltip(bitcoinUnit == BitcoinUnit.BTC ? new Tooltip(satsValue) : new Tooltip(btcValue));
                 return bitcoinUnit == BitcoinUnit.BTC ? btcValue : satsValue;
@@ -273,8 +273,9 @@ public class WhirlpoolController {
                 allPoolsService.setOnSucceeded(poolsStateEvent -> {
                     OptionalLong optMinValue = allPoolsService.getValue().stream().mapToLong(pool1 -> pool1.getPremixValueMin() + pool1.getFeeValue()).min();
                     if(optMinValue.isPresent() && totalUtxoValue < optMinValue.getAsLong()) {
-                        String satsValue = String.format(Locale.ENGLISH, "%,d", optMinValue.getAsLong()) + " sats";
+                        UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
-                        String btcValue = CoinLabel.getBTCFormat().format((double)optMinValue.getAsLong() / Transaction.SATOSHIS_PER_BITCOIN) + " BTC";
+                        String satsValue = format.formatSatsValue(optMinValue.getAsLong()) + " sats";
+                        String btcValue = format.formatBtcValue(optMinValue.getAsLong()) + " BTC";
                         poolInsufficient.setText("No available pools. Select a value over " + (Config.get().getBitcoinUnit() == BitcoinUnit.BTC ? btcValue : satsValue) + ".");
                     }
                 });

src/main/resources/com/sparrowwallet/sparrow/app.fxml

@@ -7,6 +7,7 @@
 <?import javafx.scene.shape.Rectangle?>
 <?import com.sparrowwallet.sparrow.control.UnlabeledToggleSwitch?>
 <?import com.sparrowwallet.drongo.BitcoinUnit?>
+<?import com.sparrowwallet.sparrow.UnitFormat?>
 <?import com.sparrowwallet.sparrow.Theme?>
 <?import impl.org.controlsfx.skin.DecorationPane?>
 
@@ -56,6 +57,9 @@
                 <fx:define>
                     <ToggleGroup fx:id="bitcoinUnit"/>
                 </fx:define>
+                <fx:define>
+                    <ToggleGroup fx:id="unitFormat"/>
+                </fx:define>
                 <fx:define>
                     <ToggleGroup fx:id="theme"/>
                 </fx:define>
@@ -80,6 +84,20 @@
                                 </RadioMenuItem>
                             </items>
                         </Menu>
+                        <Menu mnemonicParsing="false" text="Unit Format">
+                            <items>
+                                <RadioMenuItem mnemonicParsing="false" text="1,234.56" toggleGroup="$unitFormat" onAction="#setUnitFormat">
+                                    <userData>
+                                        <UnitFormat fx:constant="DOT" />
+                                    </userData>
+                                </RadioMenuItem>
+                                <RadioMenuItem mnemonicParsing="false" text="1.234,56" toggleGroup="$unitFormat" onAction="#setUnitFormat">
+                                    <userData>
+                                        <UnitFormat fx:constant="COMMA" />
+                                    </userData>
+                                </RadioMenuItem>
+                            </items>
+                        </Menu>
                         <Menu mnemonicParsing="false" text="Theme">
                             <items>
                                 <RadioMenuItem mnemonicParsing="false" text="Light" toggleGroup="$theme" onAction="#setTheme">