fgdata/gui/dialogs/checklist.xml

<?xml version="1.0"?>

<PropertyList>
  <name>checklist</name>
  <layout>vbox</layout>
	<default-padding>1</default-padding>

  <color>
    <red type="float">0.41</red>
    <green type="float">0.4</green>
    <blue type="float">0.42</blue>
    <alpha type="float">1.0</alpha>
    <alpha type="float">1.0</alpha>
  </color>

  <nasal>
    <open>
      var dlgRoot = cmdarg();
      var checklists = props.globals.getNode("/sim/checklists", 1).getChildren("checklist");
      
      if (size(checklists) > 0) {
        
        var combo = gui.findElementByName(dlgRoot, "checklist-combo");
        var group = gui.findElementByName(dlgRoot, "checklist-table-group");
        
        forindex (var idx; checklists) {
          combo.getChild("value", idx, 1).setValue(checklists[idx].getNode("title", 1).getValue());
          var c = checklists[idx];        
          var row = 0;
          
          # Set up a new table, only visible when this checklist is selected.
          var table = group.getChild("group", idx, 1);
          table.getNode("row", 1).setValue(0);
          table.getNode("col", 1).setValue(0);
          table.getNode("default-padding", 1).setValue(4);
          table.getNode("layout", 1).setValue("table");
          table.getNode("valign", 1).setValue("top");
          
          var vis = table.getNode("visible", 1).getNode("equals", 1);
          vis.getNode("property", 1).setValue("sim/gui/dialogs/checklist/selected-checklist");
          vis.getNode("value", 1).setValue(c.getNode("title").getValue());
          
          var items = c.getChildren("item");
          var txtcount = 0;
          
          forindex (var i; items) {          
            var item = items[i];

            var t = table.getChild("text", txtcount, 1);
            txtcount += 1;
            
            var values = item.getChildren("value");
            
            if (size(values) == 0) {
              # Single name element with no values. Used as title
              t.getNode("halign", 1).setValue("center");
              t.getNode("row", 1).setValue(row);
              t.getNode("col", 1).setValue(0);
              t.getNode("colspan", 1).setValue(2);
              t.getNode("label", 1).setValue(item.getNode("name", 1).getValue());
              row = row + 1;
            } else {
              t.getNode("halign", 1).setValue("left");
              t.getNode("row", 1).setValue(row);
              t.getNode("col", 1).setValue(0);
              t.getNode("label", 1).setValue(item.getNode("name", 1).getValue());                        
              
              forindex (var v; values) {
                var t = table.getChild("text", txtcount, 1);
                txtcount += 1;
                t.getNode("halign", 1).setValue("right");
                t.getNode("row", 1).setValue(row);
                if (v > 0) {
                  # The second row of values can overlap with the
                  # first column if required - helps keep the 
                  # checklist dialog as compact as possible
                  t.getNode("col", 1).setValue(0);
                  t.getNode("colspan", 1).setValue(2);
                } else {
                  t.getNode("col", 1).setValue(1);
                }
                  
                t.getNode("label", 1).setValue(values[v].getValue());                
                row = row + 1;              
              }
            }
          }
        }
        
        setprop("sim/gui/dialogs/checklist/selected-checklist", 
                checklists[0].getNode("title").getValue());
      } else {
          var group = gui.findElementByName(dlgRoot, "checklist-table-group");
          var table = group.getNode("text", 1);
          table.getNode("row", 1).setValue(0);
          table.getNode("col", 1).setValue(0);
          table.getNode("default-padding", 1).setValue(4);
          table.getNode("layout", 1).setValue("table");
          table.getNode("valign", 1).setValue("top");
          table.getNode("halign", 1).setValue("center");
          table.getNode("label", 1).setValue("No checklists exist for this aircraft");
      
      }
      
      var setTransparency = func(updateDialog){
          var alpha = (getprop("/sim/gui/dialogs/checklist/transparent") or 0);
          dlgRoot.getNode("color/alpha").setValue(1-alpha*0.3);
          dlgRoot.getNode("color/red").setValue(0.41-alpha*0.2);
          dlgRoot.getNode("color/green").setValue(0.4-alpha*0.2);
          dlgRoot.getNode("color/blue").setValue(0.42-alpha*0.2);
          var n = props.Node.new({ "dialog-name": "checklist" });
          if (updateDialog)
          {
              fgcommand("dialog-close", n);
              fgcommand("dialog-show", n);
          }
      }
      setTransparency(0);
      
    </open>
  </nasal>

  <group>
    <layout>hbox</layout>
    <empty><stretch>1</stretch></empty>

    <text>
      <label>Aircraft Checklists</label>
    </text>

    <empty><stretch>1</stretch></empty>

    <button>
      <pref-width>16</pref-width>
      <pref-height>16</pref-height>
      <legend></legend>
      <keynum>27</keynum>
      <border>2</border>
      <binding>
        <command>dialog-close</command>
      </binding>
    </button>
  </group>

  <hrule/>

  <group>
    <layout>hbox</layout>

    <text>
      <halign>right</halign>
      <label>Checklist:</label>
    </text>

    <combo>
      <name>checklist-combo</name>
      <property>/sim/gui/dialogs/checklist/selected-checklist</property>
      <editable>false</editable>
      <pref-width>200</pref-width>
      <halign>fill</halign>
      <binding>
        <command>dialog-apply</command>
        <object-name>checklist-combo</object-name>
      </binding>
    </combo>
    
    <empty><stretch>true</stretch></empty>
    
    <checkbox>
        <label>Transparent</label>
        <pref-width>100</pref-width>
        <property>/sim/gui/dialogs/checklist/transparent</property>
        <live>true</live>
        <halign>right</halign>
        <binding>
          <command>dialog-apply</command>
        </binding>
        <binding>
          <command>property-toggle</command>
        </binding>
        <binding>
            <command>nasal</command>
            <script>setTransparency(1);</script>
        </binding>
    </checkbox>
  </group>
  
  <hrule/>
  
  <group>
    <default-padding>4</default-padding>
    <halign>fill</halign>
    <layout>table</layout>
    <name>checklist-table-group</name>
  </group>
</PropertyList>