Add icons for memo

src/txtablemodel.cpp

@@ -90,12 +90,7 @@ void TxTableModel::updateAllData() {
     auto dat = modeldata->at(index.row());
     if (role == Qt::DisplayRole) {
         switch (index.column()) {
-        case 0: {
+        case 0: return dat.type;
-                    QString labels = (dat.type == "send" ? "S" : "R");
-                    if (!dat.memo.isEmpty()) 
-                        labels = labels + " M";
-                    return labels;
-                }
         case 1: { 
                     auto addr = modeldata->at(index.row()).address;
                     if (addr.trimmed().isEmpty()) 
@@ -124,6 +119,19 @@ void TxTableModel::updateAllData() {
         }    
     }
 
+    if (role == Qt::DecorationRole && index.column() == 0) {
+        if (!dat.memo.isEmpty()) {
+            // Return the info pixmap to indicate memo
+            QIcon icon = QApplication::style()->standardIcon(QStyle::SP_MessageBoxInformation);            
+            return QVariant(icon.pixmap(16, 16));
+        } else {
+            // Empty pixmap to make it align
+            QPixmap p(16, 16);
+            p.fill(Qt::white);
+            return QVariant(p);
+        }
+    }
+
     return QVariant();
  }