gtk/demos/gtk-demo/fishbowl.ui

<interface>
  <object class="GtkWindow" id="window">
    <property name="title" translatable="yes">Fishbowl</property>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="">
        <property name="show-title-buttons">1</property>
        <child>
          <object class="GtkBox">
            <style>
              <class name="linked"/>
            </style>
            <child>
              <object class="GtkButton">
                <property name="icon-name">pan-start-symbolic</property>
                <signal name="clicked" handler="prev_button_clicked_cb" object="bowl" swapped="no"/>
              </object>
            </child>
            <child>
              <object class="GtkButton">
                <property name="icon-name">pan-end-symbolic</property>
                <signal name="clicked" handler="next_button_clicked_cb" object="bowl" swapped="no"/>
              </object>
            </child>
          </object>
        </child>
        <child type="end">
          <object class="GtkLabel">
            <property name="label">fps</property>
          </object>
          <packing/>
        </child>
        <child type="end">
          <object class="GtkLabel">
            <property name="label" bind-source="bowl" bind-property="framerate"/>
          </object>
          <packing/>
        </child>
        <child type="end">
          <object class="GtkLabel">
            <property name="label">Icons, </property>
          </object>
          <packing/>
        </child>
        <child type="end">
          <object class="GtkLabel">
            <property name="label" bind-source="bowl" bind-property="count"/>
          </object>
          <packing/>
        </child>
        <child type="end">
          <object class="GtkToggleButton" id="changes_allow">
            <property name="visible" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean"/>
            <property name="icon-name">changes-allow</property>
            <property name="relief">none</property>
          </object>
          <packing/>
        </child>
        <child type="end">
          <object class="GtkToggleButton" id="changes_prevent">
            <property name="active" bind-source="changes_allow" bind-property="active" bind-flags="bidirectional|invert-boolean"/>
            <property name="visible" bind-source="changes_prevent" bind-property="active" bind-flags="invert-boolean"/>
            <property name="icon-name">changes-prevent</property>
            <property name="relief">none</property>
          </object>
          <packing/>
        </child>
      </object>
    </child>
    <child>
      <object class="GtkFishbowl" id="bowl">
        <property name="visible">True</property>
        <property name="animating">True</property>
        <property name="benchmark" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean"/>
      </object>
    </child>
  </object>
</interface>