Introduce wrappers around CBitcoinAddress

This patch removes the need for the intermediary Base58 type
CBitcoinAddress, by providing {Encode,Decode,IsValid}Destination
function that directly operate on the conversion between strings
and CTxDestination.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
index a056e858a7..05c5ccbfe2 100644
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -777,19 +777,18 @@ void SendCoinsDialog::coinControlChangeEdited(const QString& text)
         CoinControlDialog::coinControl->destChange = CNoDestination();
         ui->labelCoinControlChangeLabel->setStyleSheet("QLabel{color:red;}");
 
-        CBitcoinAddress addr = CBitcoinAddress(text.toStdString());
+        const CTxDestination dest = DecodeDestination(text.toStdString());
 
         if (text.isEmpty()) // Nothing entered
         {
             ui->labelCoinControlChangeLabel->setText("");
         }
-        else if (!addr.IsValid()) // Invalid address
+        else if (!IsValidDestination(dest)) // Invalid address
         {
             ui->labelCoinControlChangeLabel->setText(tr("Warning: Invalid Bitcoin address"));
         }
         else // Valid address
         {
-            const CTxDestination dest = addr.Get();
             if (!model->IsSpendable(dest)) {
                 ui->labelCoinControlChangeLabel->setText(tr("Warning: Unknown change address"));