Configurator: hide show unconfigured ports

src/Configurator.cpp

@@ -53,7 +53,8 @@ Configurator::Configurator(QWidget *parent) :
         this->setConfig(Config::RPCBindIP, text);
     });
 
-    ui->lineRPCBindPort->setText(config()->get(Config::RPCBindPort).toString());
+    QString rpcPort = config()->get(Config::RPCBindPort).toString();
+    ui->lineRPCBindPort->setText(rpcPort == "0" ? "" : rpcPort);
     connect(ui->lineP2PBindPort, &QLineEdit::textChanged, [this](const QString &text){
         this->setConfig(Config::RPCBindPort, text);
     });
@@ -63,7 +64,8 @@ Configurator::Configurator(QWidget *parent) :
         this->setConfig(Config::P2PBindIP, text);
     });
 
-    ui->lineP2PBindPort->setText(config()->get(Config::P2PBindPort).toString());
+    QString p2pPort = config()->get(Config::P2PBindPort).toString();
+    ui->lineP2PBindPort->setText(p2pPort == "0" ? "" : p2pPort);
     connect(ui->lineP2PBindPort, &QLineEdit::textChanged, [this](const QString &text){
         this->setConfig(Config::P2PBindPort, text);
     });