+/*
+ * Copyright © 2010 Keith Packard <keithp@keithp.com>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package org.altusmetrum.telegps;
+
+import java.awt.*;
+import javax.swing.*;
+import java.io.*;
+import java.text.*;
+import org.altusmetrum.altoslib_4.*;
+import org.altusmetrum.altosuilib_2.*;
+
+public class TeleGPSDisplayThread extends Thread {
+
+ Frame parent;
+ IdleThread idle_thread;
+ AltosVoice voice;
+ AltosFlightReader reader;
+ AltosState old_state, state;
+ AltosListenerState listener_state;
+ AltosFlightDisplay display;
+
+ synchronized void show_safely() {
+ final AltosState my_state = state;
+ final AltosListenerState my_listener_state = listener_state;
+ Runnable r = new Runnable() {
+ public void run() {
+ try {
+ display.show(my_state, my_listener_state);
+ } catch (Exception ex) {
+ }
+ }
+ };
+ SwingUtilities.invokeLater(r);
+ }
+
+ void reading_error_internal() {
+ JOptionPane.showMessageDialog(parent,
+ String.format("Error reading from \"%s\"", reader.name),
+ "Telemetry Read Error",
+ JOptionPane.ERROR_MESSAGE);
+ }
+
+ void reading_error_safely() {
+ Runnable r = new Runnable() {
+ public void run() {
+ try {
+ reading_error_internal();
+ } catch (Exception ex) {
+ }
+ }
+ };
+ SwingUtilities.invokeLater(r);
+ }
+
+ class IdleThread extends Thread {
+
+ boolean started;
+ int report_interval;
+ long report_time;
+
+ public synchronized void report(boolean last) {
+ if (state == null)
+ return;
+
+ if (state.height() != AltosLib.MISSING) {
+ if (state.from_pad != null) {
+ voice.speak("Height %s, bearing %s %d, elevation %d, range %s, .\n",
+ AltosConvert.height.say(state.gps_height()),
+ state.from_pad.bearing_words(
+ AltosGreatCircle.BEARING_VOICE),
+ (int) (state.from_pad.bearing + 0.5),
+ (int) (state.elevation + 0.5),
+ AltosConvert.distance.say(state.range));
+ } else {
+ voice.speak("Height %s.\n",
+ AltosConvert.height.say(state.height()));
+ }
+ } else {
+ voice.speak("Height is unknown.\n");
+ }
+ }
+
+ long now () {
+ return System.currentTimeMillis();
+ }
+
+ void set_report_time() {
+ report_time = now() + report_interval;
+ }
+
+ public void run () {
+ try {
+ for (;;) {
+ if (reader.has_monitor_battery()) {
+ listener_state.battery = reader.monitor_battery();
+ show_safely();
+ }
+ set_report_time();
+ for (;;) {
+ voice.drain();
+ synchronized (this) {
+ long sleep_time = report_time - now();
+ if (sleep_time <= 0)
+ break;
+ wait(sleep_time);
+ }
+ }
+
+ report(false);
+ }
+ } catch (InterruptedException ie) {
+ try {
+ voice.drain();
+ } catch (InterruptedException iie) { }
+ }
+ }
+
+ public synchronized void notice(boolean spoken) {
+ if (old_state != null && old_state.state != state.state) {
+ report_time = now();
+ this.notify();
+ } else if (spoken)
+ set_report_time();
+ }
+
+ public IdleThread() {
+ report_interval = 10000;
+ }
+ }
+
+ synchronized boolean tell() {
+ boolean ret = false;
+ if (old_state == null || old_state.gps_ready != state.gps_ready) {
+ if (state.gps_ready) {
+ voice.speak("GPS ready");
+ ret = true;
+ }
+ else if (old_state != null) {
+ voice.speak("GPS lost");
+ ret = true;
+ }
+ }
+ old_state = state;
+ return ret;
+ }
+
+ public void run() {
+ boolean interrupted = false;
+ boolean told;
+
+ idle_thread = new IdleThread();
+ idle_thread.start();
+
+ try {
+ for (;;) {
+ try {
+ state = reader.read();
+ if (state == null)
+ break;
+ reader.update(state);
+ show_safely();
+ told = tell();
+ idle_thread.notice(told);
+ } catch (ParseException pp) {
+ System.out.printf("Parse error: %d \"%s\"\n", pp.getErrorOffset(), pp.getMessage());
+ } catch (AltosCRCException ce) {
+ ++listener_state.crc_errors;
+ show_safely();
+ }
+ }
+ } catch (InterruptedException ee) {
+ interrupted = true;
+ } catch (IOException ie) {
+ reading_error_safely();
+ } finally {
+ if (!interrupted)
+ idle_thread.report(true);
+ reader.close(interrupted);
+ idle_thread.interrupt();
+ try {
+ idle_thread.join();
+ } catch (InterruptedException ie) {}
+ }
+ }
+
+ public TeleGPSDisplayThread(Frame in_parent, AltosVoice in_voice, AltosFlightDisplay in_display, AltosFlightReader in_reader) {
+ listener_state = new AltosListenerState();
+ parent = in_parent;
+ voice = in_voice;
+ display = in_display;
+ reader = in_reader;
+ display.reset();
+ }
+}
projects / fw / altos / commitdiff