handle support for multiple payments in a tx

build.gradle

@@ -52,7 +52,9 @@ dependencies {
         exclude group: 'org.slf4j'
     }
     implementation('com.sparrowwallet:hummingbird:1.2')
-    implementation('com.nativelibs4java:bridj:0.7-20140918-3')
+    implementation('com.nativelibs4java:bridj:0.7-20140918-3') {
+        exclude group: 'com.google.android.tools', module: 'dx'
+    }
     implementation('com.github.sarxos:webcam-capture:0.3.13-SNAPSHOT') {
         exclude group: 'com.nativelibs4java', module: 'bridj'
     }

drongo

@@ -1 +1 @@
-Subproject commit 661e88447f232e44f96f69ee795f151233099ed6
+Subproject commit 8b07336d71f32094acb8eb8c162ebd8621ffc4aa

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

@@ -2,6 +2,7 @@ package com.sparrowwallet.sparrow.control;
 
 import com.sparrowwallet.drongo.protocol.Sha256Hash;
 import com.sparrowwallet.drongo.wallet.BlockTransactionHashIndex;
+import com.sparrowwallet.drongo.wallet.Payment;
 import com.sparrowwallet.drongo.wallet.WalletNode;
 import com.sparrowwallet.drongo.wallet.WalletTransaction;
 import com.sparrowwallet.sparrow.EventManager;
@@ -26,6 +27,7 @@ import java.util.*;
 
 public class TransactionDiagram extends GridPane {
     private static final int MAX_UTXOS = 8;
+    private static final int MAX_PAYMENTS = 6;
     private static final double DIAGRAM_HEIGHT = 230.0;
     private static final int TOOLTIP_SHOW_DELAY = 50;
 
@@ -55,10 +57,12 @@ public class TransactionDiagram extends GridPane {
         Pane txPane = getTransactionPane();
         GridPane.setConstraints(txPane, 3, 0);
 
-        Pane outputsLinesPane = getOutputsLines();
+        List<Payment> displayedPayments = getDisplayedPayments();
+
+        Pane outputsLinesPane = getOutputsLines(displayedPayments);
         GridPane.setConstraints(outputsLinesPane, 4, 0);
 
-        Pane outputsPane = getOutputsLabels();
+        Pane outputsPane = getOutputsLabels(displayedPayments);
         GridPane.setConstraints(outputsPane, 5, 0);
 
         getChildren().clear();
@@ -241,7 +245,28 @@ public class TransactionDiagram extends GridPane {
         return value * (1.0 - scaleFactor) + additional;
     }
 
-    private Pane getOutputsLines() {
+    private List<Payment> getDisplayedPayments() {
+        List<Payment> payments = walletTx.getPayments();
+
+        if(payments.size() > MAX_PAYMENTS) {
+            List<Payment> displayedPayments = new ArrayList<>();
+            List<Payment> additional = new ArrayList<>();
+            for(Payment payment : payments) {
+                if(displayedPayments.size() < MAX_PAYMENTS) {
+                    displayedPayments.add(payment);
+                } else {
+                    additional.add(payment);
+                }
+            }
+
+            displayedPayments.add(new AdditionalPayment(additional));
+            return displayedPayments;
+        } else {
+            return payments;
+        }
+    }
+
+    private Pane getOutputsLines(List<Payment> displayedPayments) {
         VBox pane = new VBox();
         Group group = new Group();
         VBox.setVgrow(group, Priority.ALWAYS);
@@ -255,7 +280,7 @@ public class TransactionDiagram extends GridPane {
         group.getChildren().add(yaxisLine);
 
         double width = 140.0;
-        int numOutputs = (walletTx.getChangeNode() == null ? 2 : 3);
+        int numOutputs = displayedPayments.size() + (walletTx.getChangeNode() == null ? 1 : 2);
         for(int i = 1; i <= numOutputs; i++) {
             CubicCurve curve = new CubicCurve();
             curve.getStyleClass().add("output-line");
@@ -280,23 +305,25 @@ public class TransactionDiagram extends GridPane {
         return pane;
     }
 
-    private Pane getOutputsLabels() {
+    private Pane getOutputsLabels(List<Payment> displayedPayments) {
         VBox outputsBox = new VBox();
         outputsBox.setMaxWidth(150);
         outputsBox.setPadding(new Insets(0, 20, 0, 10));
         outputsBox.setAlignment(Pos.CENTER_LEFT);
         outputsBox.getChildren().add(createSpacer());
 
-        boolean isConsolidation = walletTx.isConsolidationSend();
+        for(Payment payment : displayedPayments) {
-        String recipientDesc = walletTx.getRecipientAddress().toString().substring(0, 8) + "...";
+            boolean isConsolidation = walletTx.isConsolidationSend(payment);
+            String recipientDesc = payment instanceof AdditionalPayment ? payment.getLabel() : payment.getAddress().toString().substring(0, 8) + "...";
             Label recipientLabel = new Label(recipientDesc, isConsolidation ? getConsolidationGlyph() : getPaymentGlyph());
             recipientLabel.getStyleClass().addAll("output-label", "recipient-label");
-        Tooltip recipientTooltip = new Tooltip((isConsolidation ? "Consolidate " : "Pay ") + getSatsValue(walletTx.getRecipientAmount()) + " sats to\n" + walletTx.getRecipientAddress().toString());
+            Tooltip recipientTooltip = new Tooltip((isConsolidation ? "Consolidate " : "Pay ") + getSatsValue(payment.getAmount()) + " sats to\n" + payment.getAddress().toString());
             recipientTooltip.getStyleClass().add("recipient-label");
             recipientTooltip.setShowDelay(new Duration(TOOLTIP_SHOW_DELAY));
             recipientLabel.setTooltip(recipientTooltip);
             outputsBox.getChildren().add(recipientLabel);
             outputsBox.getChildren().add(createSpacer());
+        }
 
         if(walletTx.getChangeNode() != null) {
             String changeDesc = walletTx.getChangeAddress().toString().substring(0, 8) + "...";
@@ -412,4 +439,10 @@ public class TransactionDiagram extends GridPane {
             return additionalInputs;
         }
     }
+
+    private static class AdditionalPayment extends Payment {
+        public AdditionalPayment(List<Payment> additionalPayments) {
+            super(null, additionalPayments.size() + " more...", additionalPayments.stream().map(Payment::getAmount).mapToLong(v -> v).sum(), false);
+        }
+    }
 }

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

@@ -275,9 +275,9 @@ public class SendController extends WalletFormController implements Initializabl
 
         walletTransactionProperty.addListener((observable, oldValue, walletTransaction) -> {
             if(walletTransaction != null) {
-                if(getRecipientValueSats() == null || walletTransaction.getRecipientAmount() != getRecipientValueSats()) {
+                if(getRecipientValueSats() == null || walletTransaction.getPayments().get(0).getAmount() != getRecipientValueSats()) {
-                    setRecipientValueSats(walletTransaction.getRecipientAmount());
+                    setRecipientValueSats(walletTransaction.getPayments().get(0).getAmount());
-                    setFiatAmount(AppController.getFiatCurrencyExchangeRate(), walletTransaction.getRecipientAmount());
+                    setFiatAmount(AppController.getFiatCurrencyExchangeRate(), walletTransaction.getPayments().get(0).getAmount());
                 }
 
                 double feeRate = walletTransaction.getFeeRate();
@@ -329,11 +329,12 @@ public class SendController extends WalletFormController implements Initializabl
             Long recipientAmount = sendAll ? Long.valueOf(recipientDustThreshold + 1) : getRecipientValueSats();
             if(recipientAmount != null && recipientAmount > recipientDustThreshold && (!userFeeSet.get() || (getFeeValueSats() != null && getFeeValueSats() > 0))) {
                 Wallet wallet = getWalletForm().getWallet();
+                List<Payment> payments = List.of(new Payment(recipientAddress, label.getText(), recipientAmount, sendAll));
                 Long userFee = userFeeSet.get() ? getFeeValueSats() : null;
                 Integer currentBlockHeight = AppController.getCurrentBlockHeight();
                 boolean groupByAddress = Config.get().isGroupByAddress();
                 boolean includeMempoolChange = Config.get().isIncludeMempoolChange();
-                WalletTransaction walletTransaction = wallet.createWalletTransaction(getUtxoSelectors(), getUtxoFilters(), recipientAddress, recipientAmount, getFeeRate(), getMinimumFeeRate(), userFee, currentBlockHeight, sendAll, groupByAddress, includeMempoolChange);
+                WalletTransaction walletTransaction = wallet.createWalletTransaction(getUtxoSelectors(), getUtxoFilters(), payments, getFeeRate(), getMinimumFeeRate(), userFee, currentBlockHeight, groupByAddress, includeMempoolChange);
                 walletTransactionProperty.setValue(walletTransaction);
                 insufficientInputsProperty.set(false);
 
@@ -611,10 +612,8 @@ public class SendController extends WalletFormController implements Initializabl
         WalletTransaction walletTransaction = walletTransactionProperty.get();
         Set<WalletNode> nodes = new LinkedHashSet<>(walletTransaction.getSelectedUtxos().values());
         nodes.add(walletTransaction.getChangeNode());
-        WalletNode consolidationNode = walletTransaction.getConsolidationSendNode();
+        List<WalletNode> consolidationNodes = walletTransaction.getConsolidationSendNodes();
-        if(consolidationNode != null) {
+        nodes.addAll(consolidationNodes);
-            nodes.add(consolidationNode);
-        }
 
         //All wallet nodes applicable to this transaction are stored so when the subscription status for one is updated, the history for all can be fetched in one atomic update
         walletForm.addWalletTransactionNodes(nodes);