Add tx comment to send dialog

src/qt/forms/sendcoinsdialog.ui

@@ -13,7 +13,7 @@
   <property name="windowTitle">
    <string>Send Coins</string>
   </property>
-  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,1,0,0">
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,1,0,0,0">
    <property name="bottomMargin">
     <number>8</number>
    </property>
@@ -588,7 +588,7 @@
         <x>0</x>
         <y>0</y>
         <width>830</width>
-        <height>104</height>
+        <height>68</height>
        </rect>
       </property>
       <layout class="QVBoxLayout" name="verticalLayout_2" stretch="0,1">
@@ -628,6 +628,20 @@
      </widget>
     </widget>
    </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_3">
+     <item>
+      <widget class="QLabel" name="txCommentLabel">
+       <property name="text">
+        <string>TX Comment: </string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="txComment"/>
+     </item>
+    </layout>
+   </item>
    <item>
     <widget class="QFrame" name="frameFee">
      <property name="sizePolicy">
@@ -765,10 +779,10 @@
              <string>Using the fallbackfee can result in sending a transaction that will take several hours or days (or never) to confirm. Consider choosing your fee manually or wait until you have validated the complete chain.</string>
             </property>
             <property name="font">
-            <font>
-                <weight>75</weight>
-                <bold>true</bold>
-            </font>
+             <font>
+              <weight>75</weight>
+              <bold>true</bold>
+             </font>
             </property>
             <property name="text">
              <string>Warning: Fee estimation is currently not possible.</string>

src/qt/sendcoinsdialog.cpp

@@ -261,7 +261,8 @@ void SendCoinsDialog::on_sendButton_clicked()
     }
 
     // prepare transaction for getting txFee earlier
-    WalletModelTransaction currentTransaction(recipients);
+    std::string txComment = ui->txComment->text().toStdString();
+    WalletModelTransaction currentTransaction(recipients, txComment);
     WalletModel::SendCoinsReturn prepareStatus;
 
     // Always use a CCoinControl instance, use the CoinControlDialog instance if CoinControl has been enabled

src/qt/walletmodel.cpp

@@ -277,7 +277,8 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
 
         CWalletTx *newTx = transaction.getTransaction();
         CReserveKey *keyChange = transaction.getPossibleKeyChange();
-        bool fCreated = wallet->CreateTransaction(vecSend, *newTx, *keyChange, nFeeRequired, nChangePosRet, strFailReason, coinControl);
+        std::string strTxComment = transaction.getTxComment();
+        bool fCreated = wallet->CreateTransaction(vecSend, *newTx, *keyChange, nFeeRequired, nChangePosRet, strFailReason, coinControl, strTxComment);
         transaction.setTransactionFee(nFeeRequired);
         if (fSubtractFeeFromAmount && fCreated)
             transaction.reassignAmounts(nChangePosRet);

src/qt/walletmodeltransaction.cpp

@@ -7,11 +7,12 @@
 #include "policy/policy.h"
 #include "wallet/wallet.h"
 
-WalletModelTransaction::WalletModelTransaction(const QList<SendCoinsRecipient> &_recipients) :
+WalletModelTransaction::WalletModelTransaction(const QList<SendCoinsRecipient> &_recipients, std::string txComment) :
     recipients(_recipients),
     walletTransaction(0),
     keyChange(0),
-    fee(0)
+    fee(0),
+    strTxComment(txComment)
 {
     walletTransaction = new CWalletTx();
 }
@@ -27,6 +28,11 @@ QList<SendCoinsRecipient> WalletModelTransaction::getRecipients()
     return recipients;
 }
 
+std::string WalletModelTransaction::getTxComment()
+{
+    return strTxComment;
+}
+
 CWalletTx *WalletModelTransaction::getTransaction()
 {
     return walletTransaction;

src/qt/walletmodeltransaction.h

@@ -19,7 +19,7 @@ class CWalletTx;
 class WalletModelTransaction
 {
 public:
-    explicit WalletModelTransaction(const QList<SendCoinsRecipient> &recipients);
+    explicit WalletModelTransaction(const QList<SendCoinsRecipient> &recipients, std::string txComment);
     ~WalletModelTransaction();
 
     QList<SendCoinsRecipient> getRecipients();
@@ -29,6 +29,7 @@ public:
 
     void setTransactionFee(const CAmount& newFee);
     CAmount getTransactionFee();
+    std::string getTxComment();
 
     CAmount getTotalTransactionAmount();
 
@@ -42,6 +43,7 @@ private:
     CWalletTx *walletTransaction;
     CReserveKey *keyChange;
     CAmount fee;
+    std::string strTxComment;
 };
 
 #endif // BITCOIN_QT_WALLETMODELTRANSACTION_H