GUI: TransactionRecord: Use "any from me" as the criteria for deciding whether a transaction is a send or receive

This changes behaviour (IMO for the better) in the case where some but not all inputs are from us, and the net amount is positive.

src/qt/transactionrecord.cpp

@@ -13,6 +13,7 @@
 
 #include <QDateTime>
 
+using wallet::ISMINE_NO;
 using wallet::ISMINE_SPENDABLE;
 using wallet::ISMINE_WATCH_ONLY;
 using wallet::isminetype;
@@ -39,8 +40,21 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const interface
     uint256 hash = wtx.tx->GetHash();
     std::map<std::string, std::string> mapValue = wtx.value_map;
 
-    if (nNet > 0 || wtx.is_coinbase)
-    {
+    bool involvesWatchAddress = false;
+    isminetype fAllFromMe = ISMINE_SPENDABLE;
+    bool any_from_me = false;
+    if (wtx.is_coinbase) {
+        fAllFromMe = ISMINE_NO;
+    } else {
+        for (const isminetype mine : wtx.txin_is_mine)
+        {
+            if(mine & ISMINE_WATCH_ONLY) involvesWatchAddress = true;
+            if(fAllFromMe > mine) fAllFromMe = mine;
+            if (mine) any_from_me = true;
+        }
+    }
+
+    if (!any_from_me) {
         //
         // Credit
         //
@@ -78,14 +92,6 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const interface
     }
     else
     {
-        bool involvesWatchAddress = false;
-        isminetype fAllFromMe = ISMINE_SPENDABLE;
-        for (const isminetype mine : wtx.txin_is_mine)
-        {
-            if(mine & ISMINE_WATCH_ONLY) involvesWatchAddress = true;
-            if(fAllFromMe > mine) fAllFromMe = mine;
-        }
-
         isminetype fAllToMe = ISMINE_SPENDABLE;
         for (const isminetype mine : wtx.txout_is_mine)
         {