altosdroid: Select tracker by clicking on map

[fw/altos] / altosdroid / src / org / altusmetrum / AltosDroid / AltosDroid.java

diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
index f664510582d291a6f902052cdb2a93ed35f8d502..c5da6d0e6b5d13bbd48f2ee853452f7c8d5cb646 100644 (file)
--- a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
@@ -18,10 +18,9 @@
 package org.altusmetrum.AltosDroid;
 
 import java.lang.ref.WeakReference;
-import java.util.ArrayList;
-import java.util.Timer;
-import java.util.TimerTask;
 import java.text.*;
+import java.util.*;
+import java.io.*;
 
 import android.app.Activity;
 import android.app.PendingIntent;
@@ -248,11 +247,13 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
                }
        }
 
+       int     selected_serial = 0;
        int     current_serial;
        long    switch_time;
 
        void set_switch_time() {
                switch_time = System.currentTimeMillis();
+               selected_serial = 0;
        }
 
        boolean registered_units_listener;
@@ -262,6 +263,9 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
                if (new_telemetry_state != null)
                        telemetry_state = new_telemetry_state;
 
+               if (selected_serial != 0)
+                       current_serial = selected_serial;
+
                if (current_serial == 0)
                        current_serial = telemetry_state.latest_serial;
 
@@ -271,6 +275,7 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
                }
 
                serials = telemetry_state.states.keySet().toArray(new Integer[0]);
+               Arrays.sort(serials);
 
                update_title(telemetry_state);
 
@@ -282,7 +287,9 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
                        int age = state_age(state);
                        if (age < 20)
                                aged = false;
-                       if (switch_time != 0 && (switch_time - state.received_time) > 0)
+                       if (current_serial == selected_serial)
+                               aged = false;
+                       else if (switch_time != 0 && (switch_time - state.received_time) > 0)
                                aged = true;
                }
 
@@ -828,13 +835,26 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
 
        void select_tracker(int serial) {
                int i;
-               for (i = 0; i < serials.length; i++)
-                       if (serials[i] == serial)
-                               break;
-               if (i == serials.length)
+
+               AltosDebug.debug("select tracker %d\n", serial);
+
+               if (serial == selected_serial) {
+                       AltosDebug.debug("%d already selected\n", serial);
                        return;
+               }
+
+               if (serial != 0) {
+                       for (i = 0; i < serials.length; i++)
+                               if (serials[i] == serial)
+                                       break;
 
-               current_serial = serial;
+                       if (i == serials.length) {
+                               AltosDebug.debug("attempt to select unknown tracker %d\n", serial);
+                               return;
+                       }
+               }
+
+               current_serial = selected_serial = serial;
                update_state(null);
        }
 
@@ -933,15 +953,19 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
                        return true;
                case R.id.select_tracker:
                        if (serials != null) {
-                               String[] trackers = new String[serials.length];
+                               String[] trackers = new String[serials.length+1];
+                               trackers[0] = "Auto";
                                for (int i = 0; i < serials.length; i++)
-                                       trackers[i] = String.format("%d", serials[i]);
+                                       trackers[i+1] = String.format("%d", serials[i]);
                                AlertDialog.Builder builder_serial = new AlertDialog.Builder(this);
                                builder_serial.setTitle("Select a tracker");
                                builder_serial.setItems(trackers,
                                                        new DialogInterface.OnClickListener() {
                                                                public void onClick(DialogInterface dialog, int item) {
-                                                                       select_tracker(serials[item]);
+                                                                       if (item == 0)
+                                                                               select_tracker(0);
+                                                                       else
+                                                                               select_tracker(serials[item-1]);
                                                                }
                                                        });
                                AlertDialog alert_serial = builder_serial.create();