AIRO-1841 Show "Disconnect" button on the hud if there's a connection error (#268)

Author: LaurieCheers-unity

com.unity.robotics.ros-tcp-connector/Runtime/TcpConnector/ROSConnection.cs

@@ -1052,12 +1052,11 @@ void DrawHeaderGUI()
  alignment = TextAnchor.MiddleLeft,
  padding = new RectOffset(10, 0, 0, 5),
  normal = { textColor = Color.white },
- fixedWidth = 300
  };
 
 
  // ROS IP Setup
- GUILayout.BeginHorizontal();
+ GUILayout.BeginHorizontal(GUILayout.Width(300));
  DrawConnectionArrows(
  true,
  0,
@@ -1100,6 +1099,13 @@ void DrawHeaderGUI()
  else
  {
  GUILayout.Label($"{RosIPAddress}:{RosPort}", contentStyle);
+
+ if (HasConnectionError)
+ {
+ if (GUI.Button(new Rect(250, 2, 50, 22), "Set IP"))
+ Disconnect();
+ }
+
  GUILayout.EndHorizontal();
  }
  }