effect_rack.xml

<!DOCTYPE template>
<!--
Container for all the effect units
-->
<Template>
  <WidgetGroup>
    <Connection>
      <ConfigKey>[EffectRack1],show</ConfigKey>
      <BindProperty>visible</BindProperty>
    </Connection>
    <Layout>vertical</Layout>
    <!-- I don't now why this works but a WidgetGroup wrapper around a
         WidgetStack with a 'fixed' size policy makes the group track the
         minimum size of the current stack widget. -->
    <SizePolicy>me,f</SizePolicy>
    <Children>
      <WidgetGroup>
        <ObjectName>EffectRackContainer</ObjectName>
        <Layout>vertical</Layout>
        <Children>

          <WidgetGroup>
            <ObjectName>EffectUnitsRow</ObjectName>
            <Layout>horizontal</Layout>
            <SizePolicy>me,me</SizePolicy>
            <Children>
              <Template src="skin:effect_unit.xml">
                <SetVariable name="EffectRack">1</SetVariable>
                <SetVariable name="EffectUnit">1</SetVariable>
              </Template>

              <Template src="skin:spacer_hx.xml">
                <SetVariable name="width">5</SetVariable>
                <SetVariable name="color">22</SetVariable>
              </Template>

              <Template src="skin:effect_unit.xml">
                <SetVariable name="EffectRack">1</SetVariable>
                <SetVariable name="EffectUnit">2</SetVariable>
              </Template>
            </Children>
          </WidgetGroup>

          <WidgetGroup>
            <Layout>horizontal</Layout>
            <SizePolicy>me,me</SizePolicy>
            <Children>
              <WidgetGroup>
                <ObjectName>EffectUnitsRow</ObjectName>
                <Layout>horizontal</Layout>
                <SizePolicy>me,me</SizePolicy>
                <Children>
                  <Template src="skin:effect_unit.xml">
                    <SetVariable name="EffectRack">1</SetVariable>
                    <SetVariable name="EffectUnit">3</SetVariable>
                  </Template>

                  <Template src="skin:spacer_hx.xml">
                    <SetVariable name="width">5</SetVariable>
                    <SetVariable name="color">22</SetVariable>
                  </Template>

                  <Template src="skin:effect_unit.xml">
                    <SetVariable name="EffectRack">1</SetVariable>
                    <SetVariable name="EffectUnit">4</SetVariable>
                  </Template>
                </Children>
              </WidgetGroup>
            </Children>
            <Connection>
              <ConfigKey>[Skin],show_4effectunits</ConfigKey>
              <BindProperty>visible</BindProperty>
            </Connection>
          </WidgetGroup>

        </Children>
      </WidgetGroup>
    </Children>
  </WidgetGroup>
</Template>