fgdata/gui/dialogs/location-in-air.xml

<?xml version="1.0"?>
<PropertyList>
  <name>location-in-air</name>
  <layout>vbox</layout>
  <halign>left</halign>

  <nasal>
    <open>
      p = props.globals.getNode("/sim/gui/dialogs/location-in-air/", 1);
      mode = {
        airport: p.getNode("airport", 1),
        lonlat:  p.getNode("lonlat", 1),
        vor:     p.getNode("vor", 1),
        ndb:     p.getNode("ndb", 1),
        fix:     p.getNode("fix", 1),
      };

      set_radio = func(m) {
        foreach (k; keys(mode)) {
          mode[k].setBoolValue(m == k);
        }
      }

      initialized = 0;
      foreach (k; keys(mode)) {
        if (mode[k].getType() == "NONE") {
          mode[k].setBoolValue(0);
        }
        initialized += mode[k].getBoolValue();
      }
      if (!initialized) {
        set_radio("airport");
      }
    </open>

    <close># just kept for educational purposes :-)</close>
  </nasal>

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

    <text>
      <label>Position Aircraft In Air</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/>

  <text>
    <label>Surface Point</label>
  </text>

  <group>
    <layout>table</layout>
    <halign>center</halign>
    <radio>
      <row>0</row><col>0</col>
      <live>true</live>
      <property>/sim/gui/dialogs/location-in-air/airport</property>
      <binding>
        <command>dialog-apply</command>
      </binding>
      <binding>
        <command>nasal</command>
        <script>set_radio("airport")</script>
      </binding>
    </radio>
    <text>
      <row>0</row><col>1</col>
      <halign>right</halign>
      <label>Airport:</label>
    </text>
    <input>
      <row>0</row><col>2</col>
      <property>/sim/presets/airport-id</property>
    </input>
    <text>
      <row>0</row><col>3</col>
      <halign>right</halign>
      <label>Runway:</label>
    </text>
    <input>
      <row>0</row><col>4</col>
      <property>/sim/presets/runway</property>
    </input>

    <radio>
      <row>1</row><col>0</col>
      <live>true</live>
      <property>/sim/gui/dialogs/location-in-air/lonlat</property>
      <binding>
        <command>dialog-apply</command>
      </binding>
      <binding>
        <command>nasal</command>
        <script>set_radio("lonlat")</script>
      </binding>
    </radio>
    <text>
      <row>1</row><col>1</col>
      <halign>right</halign>
      <label>Longitude:</label>
    </text>
    <input>
      <row>1</row><col>2</col>
      <property>/sim/presets/longitude-deg</property>
    </input>
    <text>
      <row>1</row><col>3</col>
      <halign>right</halign>
      <label>Latitude:</label>
    </text>
    <input>
      <row>1</row><col>4</col>
      <property>/sim/presets/latitude-deg</property>
    </input>

    <radio>
      <row>2</row><col>0</col>
      <live>true</live>
      <property>/sim/gui/dialogs/location-in-air/vor</property>
      <binding>
        <command>dialog-apply</command>
      </binding>
      <binding>
        <command>nasal</command>
        <script>set_radio("vor")</script>
      </binding>
    </radio>
    <text>
      <row>2</row><col>1</col>
      <halign>right</halign>
      <label>VOR:</label>
    </text>
    <input>
      <row>2</row><col>2</col>
      <property>/sim/presets/vor-id</property>
    </input>

    <radio>
      <row>3</row><col>0</col>
      <live>true</live>
      <halign>left</halign>

      <property>/sim/gui/dialogs/location-in-air/ndb</property>
      <binding>
        <command>dialog-apply</command>
      </binding>
      <binding>
        <command>nasal</command>
        <script>set_radio("ndb")</script>
      </binding>
    </radio>
    <text>
      <row>3</row><col>1</col>
      <halign>right</halign>
      <label>NDB:</label>
    </text>
    <input>
      <row>3</row><col>2</col>
      <property>/sim/presets/ndb-id</property>
    </input>

    <radio>
      <row>4</row><col>0</col>
      <live>true</live>
      <property>/sim/gui/dialogs/location-in-air/fix</property>
      <halign>left</halign>

      <binding>
        <command>dialog-apply</command>
      </binding>
      <binding>
        <command>nasal</command>
        <script>set_radio("fix")</script>
      </binding>
    </radio>
    <text>
      <row>4</row><col>1</col>
      <halign>right</halign>
      <label>Fix:</label>
    </text>
    <input>
      <row>4</row><col>2</col>
      <property>/sim/presets/fix</property>
    </input>
  </group>

  <hrule/>

  <text>
    <label>Relative Position</label>
  </text>

  <group>
    <layout>table</layout>
    <text>
      <row>0</row><col>0</col>
      <halign>right</halign>
      <label>Distance (nm):</label>
    </text>
    <input>
      <row>0</row><col>1</col>
      <property>/sim/presets/offset-distance-nm</property>
    </input>

    <text>
      <row>0</row><col>2</col>
      <halign>right</halign>
      <label>Azimuth (deg):</label>
    </text>
    <input>
      <row>0</row><col>3</col>
      <property>/sim/presets/offset-azimuth-deg</property>
    </input>


    <text>
      <row>1</row><col>0</col>
      <halign>right</halign>
      <label>Altitude (ft):</label>
    </text>
    <input>
      <row>1</row><col>1</col>
      <property>/sim/presets/altitude-ft</property>
    </input>

    <text>
      <row>1</row><col>2</col>
      <halign>right</halign>
      <label>Glidepath (deg):</label>
    </text>
    <input>
      <row>1</row><col>3</col>
      <property>/sim/presets/glidescope-deg</property>
    </input>

    <text>
      <row>2</row><col>0</col>
      <halign>right</halign>
      <label>Airspeed (kt):</label>
    </text>
    <input>
      <row>2</row><col>1</col>
      <property>/sim/presets/airspeed-kt</property>
    </input>

    <text>
      <row>2</row><col>2</col>
      <halign>right</halign>
      <label>Heading (deg):</label>
    </text>
    <input>
      <row>2</row><col>3</col>
      <property>/sim/presets/heading-deg</property>
    </input>
  </group>

  <hrule/>

  <group>
    <layout>hbox</layout>
    <default-padding>10</default-padding>

    <button>
      <legend>OK</legend>
      <default>true</default>
      <equal>true</equal>
      <binding>
        <command>dialog-apply</command>
      </binding>
      <binding>
        <command>nasal</command>
        <script>
          setprop("/sim/presets/parkpos", "");

          if (!mode.airport.getBoolValue()) {
            setprop("/sim/presets/airport-id", "");
            setprop("/sim/presets/runway", "");
          }

          if (!mode.lonlat.getBoolValue()) {
            setprop("/sim/presets/longitude-deg", -9999);
            setprop("/sim/presets/latitude-deg", -9999);
          }

          if (!mode.vor.getBoolValue()) {
            setprop("/sim/presets/vor-id", "");
          }

          if (!mode.ndb.getBoolValue()) {
            setprop("/sim/presets/ndb-id", "");
          }

          if (!mode.fix.getBoolValue()) {
            setprop("/sim/presets/fix", "");
          }

        </script>
      </binding>
      <binding>
        <command>presets-commit</command>
      </binding>
      <binding>
        <command>nasal</command>
        <script>
          ac = getprop("/sim/aircraft");
          if (ac == "ufo") { return }

          var eng = props.globals.getNode("/controls/engines");
          if (eng != nil) {
            foreach (c; eng.getChildren("engine")) {
              c.getNode("magnetos", 1).setIntValue(3);
              c.getNode("throttle", 1).setDoubleValue(0.5);
            }
          }
        </script>
      </binding>
      <binding>
        <command>dialog-close</command>
      </binding>
    </button>

    <button>
      <legend>Cancel</legend>
      <equal>true</equal>
      <key>Esc</key>
      <binding>
        <command>dialog-close</command>
      </binding>
    </button>
  </group>
</PropertyList>