GUI: ensure a changed bitcoin unit immediately updates the tx list amounts

Author: Philip Kaufmann

src/qt/transactiontablemodel.cpp

@@ -230,6 +230,8 @@ TransactionTableModel::TransactionTableModel(CWallet* wallet, WalletModel *paren
     QTimer *timer = new QTimer(this);
     connect(timer, SIGNAL(timeout()), this, SLOT(updateConfirmations()));
     timer->start(MODEL_UPDATE_DELAY);
+
+    connect(walletModel->getOptionsModel(), SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
 }
 
 TransactionTableModel::~TransactionTableModel()
@@ -624,3 +626,8 @@ QModelIndex TransactionTableModel::index(int row, int column, const QModelIndex
     }
 }
 
+void TransactionTableModel::updateDisplayUnit()
+{
+    // emit dataChanged to update Amount column with the current unit
+    emit dataChanged(index(0, Amount), index(priv->size()-1, Amount));
+}

src/qt/transactiontablemodel.h

@@ -76,6 +76,7 @@ class TransactionTableModel : public QAbstractTableModel
 public slots:
     void updateTransaction(const QString &hash, int status);
     void updateConfirmations();
+    void updateDisplayUnit();
 
     friend class TransactionTablePriv;
 };