AS350/gui/Dialogs/autopilot.xml

<?xml version="1.0"?>
<PropertyList>
    <name>autopilot</name>
    <layout>vbox</layout>
    <!--
      /autopilot/locks/altitude
      /autopilot/locks/heading
      /autopilot/locks/speed
      /autopilot/locks/passive-mode
      /autopilot/settings/heading-bug-deg
      /autopilot/settings/target-agl-ft
      /autopilot/settings/target-altitude-ft
      /autopilot/settings/target-aoa-deg
      /autopilot/settings/target-pitch-deg
      /autopilot/settings/target-speed-kt
      /autopilot/settings/true-heading-deg
      /autopilot/settings/vertical-speed-fpm
    -->

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

		<text>
			<label>AS350 Autopilot V3</label>
		</text>

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

		<button>
			<pref-width>16</pref-width>
			<pref-height>16</pref-height>
			<legend></legend>
			<default>1</default>
			<keynum>27</keynum>
			<border>2</border>
			<binding>
				<command>dialog-close</command>
			</binding>
			<binding>
				<command>dialog-apply</command>
			</binding>
		</button>
	</group>
    <hrule/>
    <nasal>
        <open>
      ## manage one AP property group with checkbox and radio buttons
      #
      Group = {
          new : func(name, options) {
              var m = { parents: [Group] };
              m.name = name;
              m.enabled = 0;
              m.mode = options[0];
              m.options = [];

              var locks = props.globals.getNode("/autopilot/locks", 1);
              if (locks.getNode(name) == nil or locks.getNode(name, 1).getValue() == nil) {
                  locks.getNode(name, 1).setValue("");
              }
              m.lock = locks.getNode(name);
              m.active = dlg.getNode(name ~ "-active", 1);

              foreach (var o; options) {
                  var node = dlg.getNode(o);
                  if (node == nil) {
                      node = dlg.getNode(o, 1);
                      node.setBoolValue(0);
                  }
                  append(m.options, node);
                  if (m.lock.getValue() == o) {
                      m.mode = o;
                  }
              }
              m.listener = setlistener(m.lock, func(n) { m.update(n.getValue()) }, 1);
              return m;
          },
          del : func {
              removelistener(me.listener);
          },

          ## handle checkbox
          #
          enable : func {
              me.enabled = me.active.getBoolValue();
              me.lock.setValue(me.enabled ? me.mode : "");
          },

          ## handle radiobuttons
          #
          set : func(mode) {
              me.mode = mode;
              foreach (var o; me.options) {
                  o.setBoolValue(o.getName() == mode);
              }
              if (me.enabled) {
                  me.lock.setValue(mode);
              }
          },

          ## update checkboxes/radiobuttons state from the AP (listener callback)
          #
          update : func(mode) {
              me.enabled = (mode != "");
              me.active.setBoolValue(me.enabled);
              if (mode == "") {
                  mode = me.mode;
              }
              foreach (var o; me.options) {
                  o.setBoolValue(o.getName() == mode);
              }
          },
      };


      ## create and initialize input field properties if necessary
      #
      var apset = props.globals.getNode("/autopilot/settings", 1);
      foreach (var p; ["heading-bug-deg", "true-heading-deg", "vertical-speed-fpm",
                       "target-pitch-deg", "target-aoa-deg", "target-altitude-ft",
                       "target-agl-ft", "target-speed-kt"]) {

          if ((var n = apset.getNode(p)) == nil or n.getType() == "NONE") {
              apset.getNode(p, 1).setDoubleValue(0);
          }
      }

      var dlg = props.globals.getNode("/sim/gui/dialogs/autopilot", 1);

      # - first entry ("heading" etc.) is the target property in /autopilot/locks/ *and*
      #   the checkbox state property name (with "-active" appended);
      # - second entry is a list of available options for the /autopilot/locks/* property
      #   and used as radio button state property; the first list entry is used as default
      #
      var hdg = Group.new("heading",  ["dg-heading-hold", "wing-leveler", "true-heading-hold", "nav1-hold"]);
      var vel = Group.new("speed",    ["speed-with-throttle", "speed-with-pitch-trim"]);
      var alt = Group.new("altitude", ["altitude-hold", "vertical-speed-hold", "pitch-hold",
                                       "aoa-hold", "agl-hold", "gs1-hold"]);
    </open>
        <close>
      hdg.del();
      vel.del();
      alt.del();
    </close>
    </nasal>
    <group>
        <layout>hbox</layout>
        <default-padding>8</default-padding>
        <group>
            <!-- Heading -->
            <layout>vbox</layout>
            <group>
                <layout>hbox</layout>
                <checkbox>
                    <label>Heading Control</label>
                    <halign>fill</halign>
                    <property>/sim/gui/dialogs/autopilot/heading-active</property>
                    <live>true</live>
                    <binding>
                        <command>dialog-apply</command>
                    </binding>
                    <binding>
                        <command>nasal</command>
                        <script>hdg.enable()</script>
                    </binding>
                </checkbox>
            </group>
            <group>
                <layout>table</layout>
               
              
                <text>
                    <label>Heading Bug</label>
                    <halign>right</halign>
                    <row>1</row>
                    <col>0</col>
                </text>
                <radio>
                    <row>1</row>
                    <col>1</col>
                    <property>/sim/gui/dialogs/autopilot/dg-heading-hold</property>
                    <live>true</live>
                    <binding>
                        <command>nasal</command>
                        <script>hdg.set("dg-heading-hold")</script>
                    </binding>
                </radio>
                <input>
                    <row>1</row>
                    <col>2</col>
                    <property>/autopilot/settings/heading-bug-deg</property>
                    <live>true</live>
                    <binding>
                        <command>dialog-apply</command>
                    </binding>
                </input>
                <text>
                    <label>True Heading</label>
                    <halign>right</halign>
                    <row>2</row>
                    <col>0</col>
                    <visible>
                        <not>
                            <property>/autopilot/settings/gps-driving-true-heading</property>
                        </not>
                    </visible>
                </text>
                <!-- alternate UI for above, when GPS is controlling -->
                <text>
                    <visible>
                        <property>/autopilot/settings/gps-driving-true-heading</property>
                    </visible>
                    <label>GPS/FMS Heading</label>
                    <halign>right</halign>
                    <row>2</row>
                    <col>0</col>
                </text>
                <radio>
                    <row>2</row>
                    <col>1</col>
                    <property>/sim/gui/dialogs/autopilot/true-heading-hold</property>
                    <live>true</live>
                    <binding>
                        <command>nasal</command>
                        <script>hdg.set("true-heading-hold")</script>
                    </binding>
                </radio>
                <input>
                    <visible>
                        <not>
                            <property>/autopilot/settings/gps-driving-true-heading</property>
                        </not>
                    </visible>
                    <row>2</row>
                    <col>2</col>
                    <property>/autopilot/settings/true-heading-deg</property>
                    <live>true</live>
                    <binding>
                        <command>dialog-apply</command>
                    </binding>
                </input>
                <!-- alternate UI for above, when GPS is controlling -->
                <text>
                    <visible>
                        <property>/autopilot/settings/gps-driving-true-heading</property>
                    </visible>
                    <halign>right</halign>
                    <row>2</row>
                    <col>2</col>
                    <label>MMMM</label>
                    <format>%3.0f*</format>
                    <property>/autopilot/settings/true-heading-deg</property>
                    <live>true</live>
                </text>
                <text>
                    <label>NAV1 CDI Course</label>
                    <halign>right</halign>
                    <row>3</row>
                    <col>0</col>
                </text>
                <radio>
                    <row>3</row>
                    <col>1</col>
                    <property>/sim/gui/dialogs/autopilot/nav1-hold</property>
                    <live>true</live>
                    <binding>
                        <command>nasal</command>
                        <script>hdg.set("nav1-hold")</script>
                    </binding>
                </radio>
            </group>
            <hrule/>
            <group>
                <layout>hbox</layout>
                <checkbox>
                    <label>Velocity Control ( 30-145 kts IAS. )</label>
                    <halign>fill</halign>
                    <property>/sim/gui/dialogs/autopilot/speed-active</property>
                    <live>true</live>
                    <binding>
                        <command>dialog-apply</command>
                    </binding>
                    <binding>
                        <command>nasal</command>
                        <script>vel.enable()</script>
                    </binding>
                </checkbox>
            </group>
            <group>
                <layout>table</layout>
                
                <input>
                    <row>0</row>
                    <col>2</col>
                    <rowspan>2</rowspan>
                    <property>/autopilot/settings/target-speed-kt</property>
                    <live>true</live>
                    <binding>
                        <command>dialog-apply</command>
                    </binding>
                </input>
                <text>
                    <label>Speed with Pitch</label>
                    <halign>right</halign>
                    <row>1</row>
                    <col>0</col>
                </text>
                <radio>
                    <row>1</row>
                    <col>1</col>
                    <property>/sim/gui/dialogs/autopilot/speed-with-pitch-trim</property>
                    <live>true</live>
                    <binding>
                        <command>nasal</command>
                        <script>vel.set("speed-with-pitch-trim")</script>
                    </binding>
                </radio>
            </group>
      
           
        </group>
        <!-- End of Heading/Speed -->
        <vrule/>
        <group>
            <!-- Pitch/Altitude -->
            <layout>vbox</layout>
            <group>
                <layout>hbox</layout>
                <checkbox>
                    <label>Altitude Control via Collective</label>
                    <halign>fill</halign>
                    <property>/sim/gui/dialogs/autopilot/altitude-active</property>
                    <live>true</live>
                    <binding>
                        <command>dialog-apply</command>
                    </binding>
                    <binding>
                        <command>nasal</command>
                        <script>alt.enable()</script>
                    </binding>
                </checkbox>
            </group>
            <group>
                <layout>table</layout>
                <text>
                    <label>Vertical Speed</label>
                    <halign>right</halign>
                    <row>0</row>
                    <col>0</col>
                </text>
                <radio>
                    <row>0</row>
                    <col>1</col>
                    <property>/sim/gui/dialogs/autopilot/vertical-speed-hold</property>
                    <live>true</live>
                    <binding>
                        <command>nasal</command>
                        <script>alt.set("vertical-speed-hold")</script>
                    </binding>
                </radio>
                <input>
                    <row>0</row>
                    <col>2</col>
                    <property>/autopilot/settings/vertical-speed-fpm</property>
                    <live>true</live>
                    <binding>
                        <command>dialog-apply</command>
                    </binding>
                </input>
               
              
               
                <text>
                    <label>Altitude Hold</label>
                    <halign>right</halign>
                    <row>3</row>
                    <col>0</col>
                </text>
                <radio>
                    <row>3</row>
                    <col>1</col>
                    <property>/sim/gui/dialogs/autopilot/altitude-hold</property>
                    <live>true</live>
                    <binding>
                        <command>nasal</command>
                        <script>alt.set("altitude-hold")</script>
                    </binding>
                </radio>
                <input>
                    <row>3</row>
                    <col>2</col>
                    <property>/autopilot/settings/target-altitude-ft</property>
                    <live>true</live>
                    <binding>
                        <command>dialog-apply</command>
                    </binding>
                </input>
              
                <text>
                    <label>NAV1 Glideslope</label>
                    <halign>right</halign>
                    <row>5</row>
                    <col>0</col>
                </text>
                <radio>
                    <row>5</row>
                    <col>1</col>
                    <property>/sim/gui/dialogs/autopilot/gs1-hold</property>
                    <live>true</live>
                    <binding>
                        <command>nasal</command>
                        <script>alt.set("gs1-hold")</script>
                    </binding>
                </radio>
            </group>
            <empty>
                <stretch>true</stretch>
            </empty>
        </group>
        <!-- End of Pitch/Altitude VBox -->
    </group>
    <hrule/>
    <group>
        <!-- Passive Mode Toggle -->
        <layout>hbox</layout>
        <checkbox>
            <label>FlightDirector Mode</label>
            <halign>center</halign>
            <property>/autopilot/locks/passive-mode</property>
            <live>true</live>
            <binding>
                <command>dialog-apply</command>
            </binding>
            <binding>
                <command>property-toggle</command>
            </binding>
        </checkbox>
    </group>

  <hrule/>

  <button>
    <legend>Close</legend>
    <default>true</default>
    <key>Esc</key>
    <binding>
      <command>dialog-close</command>
    </binding>
  </button>

</PropertyList>