add pubkey cache

src/mainwindow.cpp

@@ -1062,6 +1062,26 @@ void MainWindow::exportSeed() {
     });
 }
 
+void MainWindow::addPubkey(QString requestZaddr, QString pubkey)
+{
+    this->pubkeyMap[requestZaddr] = pubkey;
+}
+
+QString MainWindow::getPubkeyByAddress(QString requestZaddr)
+{
+    for(auto& pair : this->pubkeyMap)
+    {
+
+    }
+
+    if(this->pubkeyMap.count(requestZaddr) > 0)
+    {
+        return this->pubkeyMap[requestZaddr];
+    }
+
+    return QString("0xdeadbeef");
+}
+
 void MainWindow::exportAllKeys() {
     exportKeys("");
 }