mainwindow.ui Example File

  <?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="windowTitle">
     <string>MarkDown Editor</string>
    </property>
    <widget class="QWidget" name="centralwidget">
     <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
       <widget class="QSplitter" name="splitter">
        <property name="orientation">
         <enum>Qt::Horizontal</enum>
        </property>
        <widget class="QPlainTextEdit" name="editor"/>
        <widget class="QWebEngineView" name="preview" native="true"/>
       </widget>
      </item>
     </layout>
    </widget>
    <widget class="QMenuBar" name="menubar">
     <property name="geometry">
      <rect>
       <x>0</x>
       <y>0</y>
       <width>800</width>
       <height>26</height>
      </rect>
     </property>
     <widget class="QMenu" name="menu_File">
      <property name="title">
       <string>&amp;File</string>
      </property>
      <addaction name="actionNew"/>
      <addaction name="actionOpen"/>
      <addaction name="actionSave"/>
      <addaction name="actionSaveAs"/>
      <addaction name="separator"/>
      <addaction name="actionExit"/>
     </widget>
     <addaction name="menu_File"/>
    </widget>
    <widget class="QStatusBar" name="statusbar"/>
    <action name="actionOpen">
     <property name="text">
      <string>&amp;Open...</string>
     </property>
     <property name="toolTip">
      <string>Open document</string>
     </property>
     <property name="shortcut">
      <string>Ctrl+O</string>
     </property>
    </action>
    <action name="actionSave">
     <property name="text">
      <string>&amp;Save</string>
     </property>
     <property name="toolTip">
      <string>Save current document</string>
     </property>
     <property name="shortcut">
      <string>Ctrl+S</string>
     </property>
    </action>
    <action name="actionExit">
     <property name="text">
      <string>E&amp;xit</string>
     </property>
     <property name="toolTip">
      <string>Exit editor</string>
     </property>
     <property name="shortcut">
      <string>Ctrl+Q</string>
     </property>
    </action>
    <action name="actionSaveAs">
     <property name="text">
      <string>Save &amp;As...</string>
     </property>
     <property name="toolTip">
      <string>Save document under different name</string>
     </property>
    </action>
    <action name="actionNew">
     <property name="text">
      <string>&amp;New</string>
     </property>
     <property name="toolTip">
      <string>Create new document</string>
     </property>
     <property name="shortcut">
      <string>Ctrl+N</string>
     </property>
    </action>
   </widget>
   <customwidgets>
    <customwidget>
     <class>QWebEngineView</class>
     <extends>QWidget</extends>
     <header>qwebengineview.h</header>
     <container>1</container>
    </customwidget>
   </customwidgets>
   <resources/>
   <connections/>
  </ui>