update ChangeLog for 1.9.18 release
[fw/altos] / telegps / TeleGPSConfigUI.java
index 4e6575868ab33a609cc897b5f8c9c8402f1165f4..a4a60b6f267670f07591d1d5f41d5ed56d748d77 100644 (file)
@@ -3,7 +3,8 @@
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -22,8 +23,8 @@ import java.awt.*;
 import java.awt.event.*;
 import javax.swing.*;
 import javax.swing.event.*;
-import org.altusmetrum.altoslib_6.*;
-import org.altusmetrum.altosuilib_6.*;
+import org.altusmetrum.altoslib_14.*;
+import org.altusmetrum.altosuilib_14.*;
 
 public class TeleGPSConfigUI
        extends AltosUIDialog
@@ -38,10 +39,14 @@ public class TeleGPSConfigUI
        JLabel                  radio_calibration_label;
        JLabel                  radio_frequency_label;
        JLabel                  radio_enable_label;
+       JLabel                  radio_10mw_label;
+       JLabel                  report_feet_label;
+       JLabel                  gps_receiver_label;
        JLabel                  rate_label;
        JLabel                  aprs_interval_label;
        JLabel                  aprs_ssid_label;
        JLabel                  aprs_format_label;
+       JLabel                  aprs_offset_label;
        JLabel                  flight_log_max_label;
        JLabel                  callsign_label;
        JLabel                  tracker_motion_label;
@@ -54,12 +59,16 @@ public class TeleGPSConfigUI
        JLabel                  version_value;
        JLabel                  serial_value;
        AltosUIFreqList         radio_frequency_value;
-       JTextField              radio_calibration_value;
+       JLabel                  radio_calibration_value;
        JRadioButton            radio_enable_value;
+       JRadioButton            radio_10mw_value;
+       JComboBox<String>       report_feet_value;
+       JComboBox<String>       gps_receiver_value;
        AltosUIRateList         rate_value;
        JComboBox<String>       aprs_interval_value;
        JComboBox<Integer>      aprs_ssid_value;
        JComboBox<String>       aprs_format_value;
+       JComboBox<Integer>      aprs_offset_value;
        JComboBox<String>       flight_log_max_value;
        JTextField              callsign_value;
        JComboBox<String>       tracker_motion_value;
@@ -83,6 +92,10 @@ public class TeleGPSConfigUI
                0, 1, 2 ,3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
        };
 
+       static Integer[]        aprs_offset_values = {
+               0, 2, 4, 6, 8, 10, 12, 14, 16, 18
+       };
+
        static String[]         tracker_motion_values_m = {
                "2",
                "5",
@@ -104,6 +117,11 @@ public class TeleGPSConfigUI
                "10"
        };
 
+       static String[]         report_feet_values = {
+               "Meters",
+               "Feet",
+       };
+
        /* A window listener to catch closing events and tell the config code */
        class ConfigListener extends WindowAdapter {
                TeleGPSConfigUI ui;
@@ -130,7 +148,7 @@ public class TeleGPSConfigUI
        }
 
        public double pyro_firing_time() {
-               return -1;
+               return AltosLib.MISSING;
        }
 
        boolean is_telemetrum() {
@@ -138,59 +156,135 @@ public class TeleGPSConfigUI
                return product != null && product.startsWith("TeleGPS");
        }
 
-       void set_radio_calibration_tool_tip() {
-               if (radio_calibration_value.isEnabled())
-                       radio_calibration_value.setToolTipText("Tune radio output to match desired frequency");
-               else
-                       radio_calibration_value.setToolTipText("Cannot tune radio while connected over packet mode");
-       }
-
        void set_radio_enable_tool_tip() {
-               if (radio_enable_value.isEnabled())
+               if (radio_enable_value.isVisible())
                        radio_enable_value.setToolTipText("Enable/Disable telemetry and RDF transmissions");
                else
                        radio_enable_value.setToolTipText("Firmware version does not support disabling radio");
        }
 
+       void set_radio_10mw_tool_tip() {
+               if (radio_10mw_value.isVisible())
+                       radio_10mw_value.setToolTipText("Should transmitter power be limited to 10mW");
+               else
+                       radio_10mw_value.setToolTipText("Older firmware could not limit radio power");
+       }
+
+       void set_report_feet_tool_tip() {
+               if (report_feet_value.isVisible())
+                       report_feet_value.setToolTipText("Units used after landing to beep max height");
+               else
+                       report_feet_value.setToolTipText("Older firmware always beeps max height in meters");
+       }
+
+       public void set_report_feet(int new_report_feet) {
+               if (new_report_feet != AltosLib.MISSING) {
+                       if (new_report_feet >= report_feet_values.length)
+                               new_report_feet = 0;
+                       if (new_report_feet < 0) {
+                               report_feet_value.setEnabled(false);
+                               new_report_feet = 0;
+                       } else {
+                               report_feet_value.setEnabled(true);
+                       }
+                       report_feet_value.setSelectedIndex(new_report_feet);
+               }
+               report_feet_value.setVisible(new_report_feet != AltosLib.MISSING);
+               report_feet_label.setVisible(new_report_feet != AltosLib.MISSING);
+
+               set_report_feet_tool_tip();
+       }
+
+       public int report_feet() {
+               if (report_feet_value.isVisible())
+                       return report_feet_value.getSelectedIndex();
+               else
+                       return AltosLib.MISSING;
+       }
+
+       void set_gps_receiver_tool_tip() {
+               if (gps_receiver_value.isVisible())
+                       gps_receiver_value.setToolTipText("GPS receiver selection");
+               else
+                       gps_receiver_value.setToolTipText("Only TeleMega with new firmware supports alternate GPS receivers");
+       }
+
+       public void set_gps_receiver(int new_gps_receiver) {
+               System.out.printf("set_gps_receiver %d\n", new_gps_receiver);
+               if (new_gps_receiver != AltosLib.MISSING) {
+                       if (new_gps_receiver >= AltosLib.gps_receiver_names.length)
+                               new_gps_receiver = 0;
+                       if (new_gps_receiver < 0) {
+                               gps_receiver_value.setEnabled(false);
+                               new_gps_receiver = 0;
+                       } else {
+                               gps_receiver_value.setEnabled(true);
+                       }
+                       gps_receiver_value.setSelectedIndex(new_gps_receiver);
+               }
+               gps_receiver_value.setVisible(new_gps_receiver != AltosLib.MISSING);
+               gps_receiver_label.setVisible(new_gps_receiver != AltosLib.MISSING);
+
+               set_gps_receiver_tool_tip();
+       }
+
+       public int gps_receiver() {
+               if (gps_receiver_value.isVisible())
+                       return gps_receiver_value.getSelectedIndex();
+               else
+                       return AltosLib.MISSING;
+       }
+
        void set_rate_tool_tip() {
-               if (rate_value.isEnabled())
+               if (rate_value.isVisible())
                        rate_value.setToolTipText("Select telemetry baud rate");
                else
                        rate_value.setToolTipText("Firmware version does not support variable telemetry rates");
        }
 
        void set_aprs_interval_tool_tip() {
-               if (aprs_interval_value.isEnabled())
+               if (aprs_interval_value.isVisible())
                        aprs_interval_value.setToolTipText("Enable APRS and set the interval between APRS reports");
                else
                        aprs_interval_value.setToolTipText("Hardware doesn't support APRS");
        }
 
        void set_aprs_ssid_tool_tip() {
-               if (aprs_ssid_value.isEnabled())
+               if (aprs_ssid_value.isVisible())
                        aprs_ssid_value.setToolTipText("Set the APRS SSID (secondary station identifier)");
-               else if (aprs_ssid_value.isEnabled())
+               else if (aprs_ssid_value.isVisible())
                        aprs_ssid_value.setToolTipText("Software version doesn't support setting the APRS SSID");
                else
                        aprs_ssid_value.setToolTipText("Hardware doesn't support APRS");
        }
 
        void set_aprs_format_tool_tip() {
-               if (aprs_format_value.isEnabled())
+               if (aprs_format_value.isVisible())
                        aprs_format_value.setToolTipText("Set the APRS format (compressed/uncompressed)");
-               else if (aprs_format_value.isEnabled())
+               else if (aprs_format_value.isVisible())
                        aprs_format_value.setToolTipText("Software version doesn't support setting the APRS format");
                else
                        aprs_format_value.setToolTipText("Hardware doesn't support APRS");
        }
 
+       void set_aprs_offset_tool_tip() {
+               if (aprs_offset_value.isVisible())
+                       aprs_offset_value.setToolTipText("Set the APRS offset from top of minute");
+               else if (aprs_offset_value.isVisible())
+                       aprs_offset_value.setToolTipText("Software version doesn't support setting the APRS offset");
+               else
+                       aprs_offset_value.setToolTipText("Hardware doesn't support APRS");
+       }
+
        void set_flight_log_max_tool_tip() {
-               if (flight_log_max_value.isEnabled())
+               if (flight_log_max_value.isVisible())
                        flight_log_max_value.setToolTipText("Size reserved for each flight log (in kB)");
                else
                        flight_log_max_value.setToolTipText("Cannot set max value with flight logs in memory");
        }
 
+       public boolean has_radio() { return true; }
+
        /* Build the UI using a grid bag */
        public TeleGPSConfigUI(JFrame in_owner) {
                super (in_owner, "Configure Device", false);
@@ -202,7 +296,7 @@ public class TeleGPSConfigUI
                Insets il = new Insets(4,4,4,4);
                Insets ir = new Insets(4,4,4,4);
 
-               pane = getContentPane();
+               pane = getScrollablePane();
                pane.setLayout(new GridBagLayout());
 
                /* Product */
@@ -316,10 +410,8 @@ public class TeleGPSConfigUI
                c.anchor = GridBagConstraints.LINE_START;
                c.insets = ir;
                c.ipady = 5;
-               radio_calibration_value = new JTextField(String.format("%d", 1186611));
-               radio_calibration_value.getDocument().addDocumentListener(this);
+               radio_calibration_value = new JLabel(String.format("%d", 1186611));
                pane.add(radio_calibration_value, c);
-               set_radio_calibration_tool_tip();
                row++;
 
                /* Radio Enable */
@@ -347,6 +439,83 @@ public class TeleGPSConfigUI
                set_radio_enable_tool_tip();
                row++;
 
+               /* Report feet */
+               c = new GridBagConstraints();
+               c.gridx = 0; c.gridy = row;
+               c.gridwidth = 4;
+               c.fill = GridBagConstraints.NONE;
+               c.anchor = GridBagConstraints.LINE_START;
+               c.insets = il;
+               c.ipady = 5;
+               report_feet_label = new JLabel("Beep max height in:");
+               pane.add(report_feet_label, c);
+
+               c = new GridBagConstraints();
+               c.gridx = 4; c.gridy = row;
+               c.gridwidth = 4;
+               c.fill = GridBagConstraints.HORIZONTAL;
+               c.weightx = 1;
+               c.anchor = GridBagConstraints.LINE_START;
+               c.insets = ir;
+               c.ipady = 5;
+               report_feet_value = new JComboBox<String>(report_feet_values);
+               report_feet_value.setEditable(false);
+               report_feet_value.addItemListener(this);
+               pane.add(report_feet_value, c);
+               set_report_feet_tool_tip();
+               row++;
+
+               /* GPS Receiver */
+               c = new GridBagConstraints();
+               c.gridx = 0; c.gridy = row;
+               c.gridwidth = 4;
+               c.fill = GridBagConstraints.NONE;
+               c.anchor = GridBagConstraints.LINE_START;
+               c.insets = il;
+               c.ipady = 5;
+               gps_receiver_label = new JLabel("GPS Receiver:");
+               pane.add(gps_receiver_label, c);
+
+               c = new GridBagConstraints();
+               c.gridx = 4; c.gridy = row;
+               c.gridwidth = 4;
+               c.fill = GridBagConstraints.HORIZONTAL;
+               c.weightx = 1;
+               c.anchor = GridBagConstraints.LINE_START;
+               c.insets = ir;
+               c.ipady = 5;
+               gps_receiver_value = new JComboBox<String>(AltosLib.gps_receiver_names);
+               gps_receiver_value.setEditable(false);
+               gps_receiver_value.addItemListener(this);
+               pane.add(gps_receiver_value, c);
+               set_gps_receiver_tool_tip();
+               row++;
+
+               /* Radio 10mW limit */
+               c = new GridBagConstraints();
+               c.gridx = 0; c.gridy = row;
+               c.gridwidth = 4;
+               c.fill = GridBagConstraints.NONE;
+               c.anchor = GridBagConstraints.LINE_START;
+               c.insets = il;
+               c.ipady = 5;
+               radio_10mw_label = new JLabel("Limit transmit to 10mW:");
+               pane.add(radio_10mw_label, c);
+
+               c = new GridBagConstraints();
+               c.gridx = 4; c.gridy = row;
+               c.gridwidth = 4;
+               c.fill = GridBagConstraints.HORIZONTAL;
+               c.weightx = 1;
+               c.anchor = GridBagConstraints.LINE_START;
+               c.insets = ir;
+               c.ipady = 5;
+               radio_10mw_value = new JRadioButton("Limited");
+               radio_10mw_value.addItemListener(this);
+               pane.add(radio_10mw_value, c);
+               set_radio_10mw_tool_tip();
+               row++;
+
                /* Telemetry Rate */
                c = new GridBagConstraints();
                c.gridx = 0; c.gridy = row;
@@ -452,6 +621,33 @@ public class TeleGPSConfigUI
                set_aprs_format_tool_tip();
                row++;
 
+               /* APRS offset */
+               c = new GridBagConstraints();
+               c.gridx = 0; c.gridy = row;
+               c.gridwidth = 4;
+               c.fill = GridBagConstraints.NONE;
+               c.anchor = GridBagConstraints.LINE_START;
+               c.insets = il;
+               c.ipady = 5;
+               aprs_offset_label = new JLabel("APRS offset:");
+               pane.add(aprs_offset_label, c);
+
+               c = new GridBagConstraints();
+               c.gridx = 4; c.gridy = row;
+               c.gridwidth = 4;
+               c.fill = GridBagConstraints.HORIZONTAL;
+               c.weightx = 1;
+               c.anchor = GridBagConstraints.LINE_START;
+               c.insets = ir;
+               c.ipady = 5;
+               aprs_offset_value = new JComboBox<Integer>(aprs_offset_values);
+               aprs_offset_value.setEditable(false);
+               aprs_offset_value.addItemListener(this);
+               aprs_offset_value.setMaximumRowCount(aprs_offset_values.length);
+               pane.add(aprs_offset_value, c);
+               set_aprs_offset_tool_tip();
+               row++;
+
                /* Callsign */
                c = new GridBagConstraints();
                c.gridx = 0; c.gridy = row;
@@ -627,7 +823,7 @@ public class TeleGPSConfigUI
                return true;
        }
 
-       void set_dirty() {
+       public void set_dirty() {
                dirty = true;
                save.setEnabled(true);
        }
@@ -642,6 +838,17 @@ public class TeleGPSConfigUI
                super.dispose();
        }
 
+       public int accel_cal_plus() {
+               return AltosLib.MISSING;
+       }
+
+       public int accel_cal_minus() {
+               return AltosLib.MISSING;
+       }
+
+       public void set_accel_cal(int accel_plus, int accel_minus) {
+       }
+
        /* Listen for events from our buttons */
        public void actionPerformed(ActionEvent e) {
                String  cmd = e.getActionCommand();
@@ -683,7 +890,7 @@ public class TeleGPSConfigUI
        public void units_changed(boolean imperial_units) {
                boolean was_dirty = dirty;
 
-               if (tracker_motion_value.isEnabled()) {
+               if (tracker_motion_value.isVisible()) {
                        String motion = tracker_motion_value.getSelectedItem().toString();
                        tracker_motion_label.setText(get_tracker_motion_label());
                        set_tracker_motion_values();
@@ -720,21 +927,24 @@ public class TeleGPSConfigUI
        }
 
        public int main_deploy() {
-               return -1;
+               return AltosLib.MISSING;
        }
 
        public void set_apogee_delay(int new_apogee_delay) { }
 
        public int apogee_delay() {
-               return -1;
+               return AltosLib.MISSING;
        }
 
        public void set_apogee_lockout(int new_apogee_lockout) { }
 
-       public int apogee_lockout() { return -1; }
+       public int apogee_lockout() { return AltosLib.MISSING; }
 
        public void set_radio_frequency(double new_radio_frequency) {
-               radio_frequency_value.set_frequency(new_radio_frequency);
+               if (new_radio_frequency != AltosLib.MISSING)
+                       radio_frequency_value.set_frequency(new_radio_frequency);
+               radio_frequency_label.setVisible(new_radio_frequency != AltosLib.MISSING);
+               radio_frequency_value.setVisible(new_radio_frequency != AltosLib.MISSING);
        }
 
        public double radio_frequency() {
@@ -742,49 +952,48 @@ public class TeleGPSConfigUI
        }
 
        public void set_radio_calibration(int new_radio_calibration) {
-               radio_calibration_value.setVisible(new_radio_calibration >= 0);
-               if (new_radio_calibration < 0)
-                       radio_calibration_value.setText("Disabled");
-               else
+               if (new_radio_calibration != AltosLib.MISSING)
                        radio_calibration_value.setText(String.format("%d", new_radio_calibration));
+               radio_calibration_value.setVisible(new_radio_calibration == AltosLib.MISSING);
+               radio_calibration_label.setVisible(new_radio_calibration == AltosLib.MISSING);
        }
 
-       private int parse_int(String name, String s, boolean split) throws AltosConfigDataException {
-               String v = s;
-               if (split)
-                       v = s.split("\\s+")[0];
-               try {
-                       return Integer.parseInt(v);
-               } catch (NumberFormatException ne) {
-                       throw new AltosConfigDataException("Invalid %s \"%s\"", name, s);
-               }
+       public void set_radio_enable(int new_radio_enable) {
+               if (new_radio_enable != AltosLib.MISSING)
+                       radio_enable_value.setSelected(new_radio_enable != 0);
+               radio_enable_label.setVisible(new_radio_enable != AltosLib.MISSING);
+               radio_enable_value.setVisible(new_radio_enable != AltosLib.MISSING);
+               set_radio_enable_tool_tip();
        }
 
-       public int radio_calibration() throws AltosConfigDataException {
-               return parse_int("radio calibration", radio_calibration_value.getText(), false);
+       public int radio_enable() {
+               if (radio_enable_value.isVisible())
+                       return radio_enable_value.isSelected() ? 1 : 0;
+               else
+                       return AltosLib.MISSING;
        }
 
-       public void set_radio_enable(int new_radio_enable) {
-               if (new_radio_enable >= 0) {
-                       radio_enable_value.setSelected(new_radio_enable > 0);
-                       radio_enable_value.setEnabled(true);
-               } else {
-                       radio_enable_value.setSelected(true);
-                       radio_enable_value.setVisible(radio_frequency() > 0);
-                       radio_enable_value.setEnabled(false);
+       public void set_radio_10mw(int new_radio_10mw) {
+               if (new_radio_10mw != AltosLib.MISSING) {
+                       radio_10mw_value.setSelected(new_radio_10mw != 0);
                }
-               set_radio_enable_tool_tip();
+               radio_10mw_value.setVisible(new_radio_10mw != AltosLib.MISSING);
+               radio_10mw_label.setVisible(new_radio_10mw != AltosLib.MISSING);
+               set_radio_10mw_tool_tip();
        }
 
-       public int radio_enable() {
-               if (radio_enable_value.isEnabled())
-                       return radio_enable_value.isSelected() ? 1 : 0;
+       public int radio_10mw() {
+               if (radio_10mw_value.isVisible())
+                       return radio_10mw_value.isSelected() ? 1 : 0;
                else
-                       return -1;
+                       return AltosLib.MISSING;
        }
 
        public void set_telemetry_rate(int new_rate) {
-               rate_value.set_rate(new_rate);
+               if (new_rate != AltosLib.MISSING)
+                       rate_value.set_rate(new_rate);
+               rate_label.setVisible(new_rate != AltosLib.MISSING);
+               rate_value.setVisible(new_rate != AltosLib.MISSING);
        }
 
        public int telemetry_rate() {
@@ -792,12 +1001,27 @@ public class TeleGPSConfigUI
        }
 
        public void set_callsign(String new_callsign) {
+               if (new_callsign != null)
+                       callsign_value.setText(new_callsign);
                callsign_value.setVisible(new_callsign != null);
-               callsign_value.setText(new_callsign);
+               callsign_label.setVisible(new_callsign != null);
        }
 
        public String callsign() {
-               return callsign_value.getText();
+               if (callsign_value.isVisible())
+                       return callsign_value.getText();
+               return null;
+       }
+
+       private int parse_int(String name, String s, boolean split) throws AltosConfigDataException {
+               String v = s;
+               if (split)
+                       v = s.split("\\s+")[0];
+               try {
+                       return Integer.parseInt(v);
+               } catch (NumberFormatException ne) {
+                       throw new AltosConfigDataException("Invalid %s \"%s\"", name, s);
+               }
        }
 
        int     flight_log_max_limit;
@@ -828,27 +1052,31 @@ public class TeleGPSConfigUI
                return parse_int("flight log max", flight_log_max_value.getSelectedItem().toString(), true);
        }
 
-       public void set_flight_log_max_limit(int new_flight_log_max_limit) {
+       public void set_flight_log_max_limit(int new_flight_log_max_limit, int new_storage_erase_unit) {
                flight_log_max_limit = new_flight_log_max_limit;
-               flight_log_max_value.removeAllItems();
-               for (int i = 8; i >= 1; i--) {
-                       int     size = flight_log_max_limit / i;
-                       flight_log_max_value.addItem(String.format("%d (%d flights)", size, i));
+               if (new_flight_log_max_limit != AltosLib.MISSING) {
+                       flight_log_max_value.removeAllItems();
+                       for (int i = 8; i >= 1; i--) {
+                               int     size = flight_log_max_limit / i;
+                               if (new_storage_erase_unit != 0)
+                                       size &= ~(new_storage_erase_unit - 1);
+                               flight_log_max_value.addItem(String.format("%d (%d flights)", size, i));
+                       }
                }
-               if (flight_log_max != 0)
+               if (flight_log_max != 0 && flight_log_max != AltosLib.MISSING)
                        set_flight_log_max(flight_log_max);
        }
 
        public void set_ignite_mode(int new_ignite_mode) { }
-       public int ignite_mode() { return -1; }
+       public int ignite_mode() { return AltosLib.MISSING; }
 
 
        public void set_pad_orientation(int new_pad_orientation) { }
-       public int pad_orientation() { return -1; }
+       public int pad_orientation() { return AltosLib.MISSING; }
 
        public void set_beep(int new_beep) { }
 
-       public int beep() { return -1; }
+       public int beep() { return AltosLib.MISSING; }
 
        String[] tracker_motion_values() {
                if (AltosConvert.imperial_units)
@@ -867,91 +1095,111 @@ public class TeleGPSConfigUI
        }
 
        String get_tracker_motion_label() {
-               return String.format("Logging Trigger Motion (%s):", AltosConvert.height.show_units());
+               return String.format("Logging Trigger Motion (%s):", AltosConvert.height.parse_units());
        }
 
        void set_tracker_tool_tip() {
-               if (tracker_motion_value.isEnabled())
+               if (tracker_motion_value.isVisible())
                        tracker_motion_value.setToolTipText("How far the device must move before logging");
                else
                        tracker_motion_value.setToolTipText("This device doesn't disable logging when stationary");
-               if (tracker_interval_value.isEnabled())
+               if (tracker_interval_value.isVisible())
                        tracker_interval_value.setToolTipText("How often to report GPS position");
                else
                        tracker_interval_value.setToolTipText("This device can't configure interval");
        }
 
        public void set_tracker_motion(int tracker_motion) {
-               if (tracker_motion < 0) {
-                       tracker_motion_value.setEnabled(false);
-               } else {
-                       tracker_motion_value.setEnabled(true);
+               if (tracker_motion != AltosLib.MISSING)
                        tracker_motion_value.setSelectedItem(AltosConvert.height.say(tracker_motion));
-               }
+               tracker_motion_label.setVisible(tracker_motion != AltosLib.MISSING);
+               tracker_motion_value.setVisible(tracker_motion != AltosLib.MISSING);
        }
 
        public int tracker_motion() throws AltosConfigDataException {
-               String str = tracker_motion_value.getSelectedItem().toString();
-               try {
-                       return (int) (AltosConvert.height.parse_locale(str) + 0.5);
-               } catch (ParseException pe) {
-                       throw new AltosConfigDataException("invalid tracker motion %s", str);
+               if (tracker_motion_value.isVisible()) {
+                       String str = tracker_motion_value.getSelectedItem().toString();
+                       try {
+                               return (int) (AltosConvert.height.parse_locale(str) + 0.5);
+                       } catch (ParseException pe) {
+                               throw new AltosConfigDataException("invalid tracker motion %s", str);
+                       }
                }
+               return AltosLib.MISSING;
        }
 
        public void set_tracker_interval(int tracker_interval) {
-               if (tracker_interval< 0) {
-                       tracker_interval_value.setEnabled(false);
-               } else {
-                       tracker_interval_value.setEnabled(true);
+               if (tracker_interval != AltosLib.MISSING)
                        tracker_interval_value.setSelectedItem(String.format("%d", tracker_interval));
-               }
+               tracker_interval_label.setVisible(tracker_interval != AltosLib.MISSING);
+               tracker_interval_value.setVisible(tracker_interval != AltosLib.MISSING);
        }
 
        public int tracker_interval() throws AltosConfigDataException {
-               return parse_int ("tracker interval", tracker_interval_value.getSelectedItem().toString(), false);
+               if (tracker_interval_value.isVisible())
+                       return parse_int ("tracker interval", tracker_interval_value.getSelectedItem().toString(), false);
+               return AltosLib.MISSING;
        }
 
        public void set_aprs_interval(int new_aprs_interval) {
-               String  s;
-
-               if (new_aprs_interval <= 0)
-                       s = "Disabled";
-               else
-                       s = Integer.toString(new_aprs_interval);
-               aprs_interval_value.setSelectedItem(s);
-               aprs_interval_value.setVisible(new_aprs_interval >= 0);
+               if (new_aprs_interval != AltosLib.MISSING)
+                       aprs_interval_value.setSelectedItem(Integer.toString(new_aprs_interval));
+               aprs_interval_value.setVisible(new_aprs_interval != AltosLib.MISSING);
+               aprs_interval_label.setVisible(new_aprs_interval != AltosLib.MISSING);
                set_aprs_interval_tool_tip();
        }
 
        public int aprs_interval() throws AltosConfigDataException {
-               String  s = aprs_interval_value.getSelectedItem().toString();
+               if (aprs_interval_value.isVisible()) {
+                       String  s = aprs_interval_value.getSelectedItem().toString();
 
-               if (s.equals("Disabled"))
-                       return 0;
-               return parse_int("aprs interval", s, false);
+                       return parse_int("aprs interval", s, false);
+               }
+               return AltosLib.MISSING;
        }
 
        public void set_aprs_ssid(int new_aprs_ssid) {
-               aprs_ssid_value.setSelectedItem(Math.max(0,new_aprs_ssid));
-               aprs_ssid_value.setVisible(new_aprs_ssid >= 0);
+               if (new_aprs_ssid != AltosLib.MISSING)
+                       aprs_ssid_value.setSelectedItem(new_aprs_ssid);
+               aprs_ssid_value.setVisible(new_aprs_ssid != AltosLib.MISSING);
+               aprs_ssid_label.setVisible(new_aprs_ssid != AltosLib.MISSING);
                set_aprs_ssid_tool_tip();
        }
 
        public int aprs_ssid() throws AltosConfigDataException {
-               Integer i = (Integer) aprs_ssid_value.getSelectedItem();
-               return i;
+               if (aprs_ssid_value.isVisible()) {
+                       Integer i = (Integer) aprs_ssid_value.getSelectedItem();
+                       return i;
+               }
+               return AltosLib.MISSING;
        }
 
        public void set_aprs_format(int new_aprs_format) {
-               aprs_format_value.setVisible(new_aprs_format >= 0);
-               aprs_format_label.setVisible(new_aprs_format >= 0);
-
-               aprs_format_value.setSelectedIndex(Math.max(0,new_aprs_format));
+               if (new_aprs_format != AltosLib.MISSING)
+                       aprs_format_value.setSelectedIndex(new_aprs_format);
+               aprs_format_value.setVisible(new_aprs_format != AltosLib.MISSING);
+               aprs_format_label.setVisible(new_aprs_format != AltosLib.MISSING);
                set_aprs_format_tool_tip();
        }
 
        public int aprs_format() throws AltosConfigDataException {
-               return aprs_format_value.getSelectedIndex();
+               if (aprs_format_value.isVisible())
+                       return aprs_format_value.getSelectedIndex();
+               return AltosLib.MISSING;
+       }
+       public void set_aprs_offset(int new_aprs_offset) {
+               if (new_aprs_offset != AltosLib.MISSING)
+                       aprs_offset_value.setSelectedItem(new_aprs_offset);
+               aprs_offset_value.setVisible(new_aprs_offset != AltosLib.MISSING);
+               aprs_offset_label.setVisible(new_aprs_offset != AltosLib.MISSING);
+               set_aprs_offset_tool_tip();
+       }
+
+       public int aprs_offset() throws AltosConfigDataException {
+               if (aprs_offset_value.isVisible()) {
+                       Integer i = (Integer) aprs_offset_value.getSelectedItem();
+                       return i;
+               }
+               return AltosLib.MISSING;
        }
 }