Qt OPC UA Viewer

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>800</width>
    <height>600</height>
   </rect>
  </property>
  <property name="minimumSize">
   <size>
    <width>800</width>
    <height>0</height>
   </size>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <layout class="QGridLayout" name="gridLayout">
    <item row="1" column="0">
     <widget class="QTreeView" name="treeView">
      <property name="alternatingRowColors">
       <bool>true</bool>
      </property>
      <property name="selectionBehavior">
       <enum>QAbstractItemView::SelectItems</enum>
      </property>
     </widget>
    </item>
    <item row="0" column="0">
     <layout class="QVBoxLayout" name="verticalLayout">
      <item>
       <layout class="QGridLayout" name="gridLayout_2">
        <item row="0" column="0">
         <widget class="QLabel" name="label">
          <property name="text">
           <string>Select OPC UA Backend:</string>
          </property>
         </widget>
        </item>
        <item row="1" column="2">
         <widget class="QPushButton" name="findServersButton">
          <property name="text">
           <string>Find Servers</string>
          </property>
         </widget>
        </item>
        <item row="2" column="2">
         <widget class="QPushButton" name="getEndpointsButton">
          <property name="text">
           <string>Get Endpoints</string>
          </property>
         </widget>
        </item>
        <item row="2" column="1">
         <widget class="QComboBox" name="servers"/>
        </item>
        <item row="2" column="0">
         <widget class="QLabel" name="label_3">
          <property name="text">
           <string>Select OPC UA Server:</string>
          </property>
         </widget>
        </item>
        <item row="1" column="1">
         <widget class="QLineEdit" name="host">
          <property name="clearButtonEnabled">
           <bool>true</bool>
          </property>
         </widget>
        </item>
        <item row="0" column="1">
         <widget class="QComboBox" name="opcUaPlugin"/>
        </item>
        <item row="1" column="0">
         <widget class="QLabel" name="label_2">
          <property name="text">
           <string>Select host to discover:</string>
          </property>
         </widget>
        </item>
        <item row="3" column="0">
         <widget class="QLabel" name="label_5">
          <property name="text">
           <string>Select OPC UA Endpoint:</string>
          </property>
         </widget>
        </item>
        <item row="3" column="1">
         <widget class="QComboBox" name="endpoints">
          <property name="sizePolicy">
           <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
            <horstretch>0</horstretch>
            <verstretch>0</verstretch>
           </sizepolicy>
          </property>
         </widget>
        </item>
        <item row="3" column="2">
         <widget class="QPushButton" name="connectButton">
          <property name="text">
           <string>Connect</string>
          </property>
         </widget>
        </item>
       </layout>
      </item>
     </layout>
    </item>
    <item row="2" column="0">
     <widget class="QLabel" name="label_4">
      <property name="text">
       <string>Log:</string>
      </property>
     </widget>
    </item>
    <item row="3" column="0">
     <widget class="QPlainTextEdit" name="log">
      <property name="lineWrapMode">
       <enum>QPlainTextEdit::NoWrap</enum>
      </property>
      <property name="readOnly">
       <bool>true</bool>
      </property>
     </widget>
    </item>
   </layout>
  </widget>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>800</width>
     <height>30</height>
    </rect>
   </property>
   <widget class="QMenu" name="menuFile">
    <property name="title">
     <string>File</string>
    </property>
    <addaction name="quitAction"/>
   </widget>
   <widget class="QMenu" name="menuHelp">
    <property name="title">
     <string>Help</string>
    </property>
    <addaction name="aboutAction"/>
   </widget>
   <addaction name="menuFile"/>
   <addaction name="menuHelp"/>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
  <action name="quitAction">
   <property name="text">
    <string>Quit</string>
   </property>
  </action>
  <action name="actionHelp">
   <property name="text">
    <string>Help</string>
   </property>
  </action>
  <action name="actionAbout_Qt">
   <property name="text">
    <string>About Qt</string>
   </property>
  </action>
  <action name="aboutAction">
   <property name="text">
    <string>About Qt</string>
   </property>
  </action>
 </widget>
 <resources/>
 <connections/>
</ui>