export UTXOs to CSV

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

@@ -74,7 +74,7 @@ public class UtxosChart extends BarChart<String, Number> {
 
     private String getCategoryName(Entry entry) {
         if(entry.getLabel() != null && !entry.getLabel().isEmpty()) {
-            return entry.getLabel().length() > 15 ? entry.getLabel().substring(0, 15) + "..." : entry.getLabel() + "\n" + ((UtxoEntry)entry).getDescription();
+            return entry.getLabel().length() > 15 ? entry.getLabel().substring(0, 15) + "..." + "\n" + ((UtxoEntry)entry).getDescription() : entry.getLabel() + "\n" + ((UtxoEntry)entry).getDescription();
         }
 
         return ((UtxoEntry)entry).getDescription();

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

@@ -113,7 +113,7 @@ public class AddressesController extends WalletFormController implements Initial
 
         FileChooser fileChooser = new FileChooser();
         fileChooser.setTitle("Export Addresses to CSV");
-        fileChooser.setInitialFileName(getWalletForm().getWallet().getName() + "-" + keyPurpose.name().toLowerCase() + "-addresses.txt");
+        fileChooser.setInitialFileName(getWalletForm().getWallet().getName() + "-" + keyPurpose.name().toLowerCase() + "-addresses.csv");
 
         Wallet copy = getWalletForm().getWallet().copy();
         WalletNode purposeNode = copy.getNode(keyPurpose);

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

@@ -1,11 +1,14 @@
 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.drongo.wallet.BlockTransactionHashIndex;
+import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.CoinLabel;
+import com.sparrowwallet.sparrow.control.EntryCell;
 import com.sparrowwallet.sparrow.control.UtxosChart;
 import com.sparrowwallet.sparrow.control.UtxosTreeTable;
 import com.sparrowwallet.sparrow.event.*;
@@ -17,14 +20,23 @@ import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
 import javafx.scene.control.Button;
 import javafx.scene.control.Tooltip;
-
+import javafx.stage.FileChooser;
+import javafx.stage.Stage;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Locale;
 import java.util.ResourceBundle;
 import java.util.stream.Collectors;
 
 public class UtxosController extends WalletFormController implements Initializable {
+    private static final Logger log = LoggerFactory.getLogger(UtxosController.class);
 
     @FXML
     private UtxosTreeTable utxosTable;
@@ -96,6 +108,42 @@ public class UtxosController extends WalletFormController implements Initializab
         utxosTable.getSelectionModel().clearSelection();
     }
 
+    public void exportUtxos(ActionEvent event) {
+        Stage window = new Stage();
+
+        FileChooser fileChooser = new FileChooser();
+        fileChooser.setTitle("Export UTXOs to CSV");
+        fileChooser.setInitialFileName(getWalletForm().getWallet().getName() + "-utxos.csv");
+
+        AppServices.moveToActiveWindowScreen(window, 800, 450);
+        File file = fileChooser.showSaveDialog(window);
+        if(file != null) {
+            try(FileOutputStream outputStream = new FileOutputStream(file)) {
+                CsvWriter writer = new CsvWriter(outputStream, ',', StandardCharsets.UTF_8);
+                writer.writeRecord(new String[] {"Date", "Output", "Address", "Label", "Value"});
+                for(Entry entry : getWalletForm().getWalletUtxosEntry().getChildren()) {
+                    UtxoEntry utxoEntry = (UtxoEntry)entry;
+                    writer.write(utxoEntry.getBlockTransaction().getDate() == null ? "Unconfirmed" : EntryCell.DATE_FORMAT.format(utxoEntry.getBlockTransaction().getDate()));
+                    writer.write(utxoEntry.getHashIndex().toString());
+                    writer.write(utxoEntry.getAddress().getAddress());
+                    writer.write(utxoEntry.getLabel());
+                    writer.write(getCoinValue(utxoEntry.getValue()));
+                    writer.endRecord();
+                }
+                writer.close();
+            } catch(IOException e) {
+                log.error("Error exporting UTXOs as CSV", e);
+                AppServices.showErrorDialog("Error exporting UTXOs as CSV", e.getMessage());
+            }
+        }
+    }
+
+    private String getCoinValue(Long value) {
+        return BitcoinUnit.BTC.equals(utxosTable.getBitcoinUnit()) ?
+                CoinLabel.getBTCFormat().format(value.doubleValue() / Transaction.SATOSHIS_PER_BITCOIN) :
+                String.format(Locale.ENGLISH, "%d", value);
+    }
+
     @Subscribe
     public void walletNodesChanged(WalletNodesChangedEvent event) {
         if(event.getWallet().equals(walletForm.getWallet())) {

src/main/resources/com/sparrowwallet/sparrow/wallet/utxos.fxml

@@ -22,7 +22,17 @@
         <VBox spacing="10.0">
             <BorderPane VBox.vgrow="ALWAYS">
                 <top>
-                    <Label styleClass="utxos-treetable-label" text="Unspent Transaction Outputs"/>
+                    <HBox alignment="CENTER_LEFT">
+                        <Label styleClass="utxos-treetable-label" text="Unspent Transaction Outputs"/>
+                        <Button onAction="#exportUtxos" styleClass="icon-button">
+                            <graphic>
+                                <Glyph fontFamily="Font Awesome 5 Free Solid" icon="ARROW_CIRCLE_DOWN" fontSize="12" />
+                            </graphic>
+                            <tooltip>
+                                <Tooltip text="Export UTXOs as CSV" />
+                            </tooltip>
+                        </Button>
+                    </HBox>
                 </top>
                 <center>
                     <UtxosTreeTable fx:id="utxosTable" />