thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

import static dk.thoerup.traininfo.R.string.app_name;
import static dk.thoerup.traininfo.R.string.generic_cancel;
import static dk.thoerup.traininfo.R.string.generic_retry;
import static dk.thoerup.traininfo.R.string.stationlist_accuracy;
import static dk.thoerup.traininfo.R.string.stationlist_addfavorite;
import static dk.thoerup.traininfo.R.string.stationlist_favorites;
import static dk.thoerup.traininfo.R.string.stationlist_gpsinfo;
import static dk.thoerup.traininfo.R.string.stationlist_gpstimeout;
import static dk.thoerup.traininfo.R.string.stationlist_latitude;
import static dk.thoerup.traininfo.R.string.stationlist_locationinfo;
import static dk.thoerup.traininfo.R.string.stationlist_longitude;
import static dk.thoerup.traininfo.R.string.stationlist_nearbystations;
import static dk.thoerup.traininfo.R.string.stationlist_nofavorites;
import static dk.thoerup.traininfo.R.string.stationlist_nolocationprovider;
import static dk.thoerup.traininfo.R.string.stationlist_obtainedby;
import static dk.thoerup.traininfo.R.string.stationlist_removefavorite;
import static dk.thoerup.traininfo.R.string.stationlist_satellitecount;
import static dk.thoerup.traininfo.R.string.stationlist_search;
import static dk.thoerup.traininfo.R.string.stationlist_stationadded;
import static dk.thoerup.traininfo.R.string.stationlist_stationmap;
import static dk.thoerup.traininfo.R.string.stationlist_stationremoved;
import static dk.thoerup.traininfo.R.string.stationlist_waitforlocation;

import java.util.ArrayList;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.location.Location;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnCreateContextMenuListener;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import dk.thoerup.android.traininfo.common.StationBean;
import dk.thoerup.android.traininfo.common.StationEntry;
import dk.thoerup.traininfo.WelcomeScreen.ListType;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.StationProvider;
import dk.thoerup.traininfo.stationmap.GeoPair;
import dk.thoerup.traininfo.stationmap.StationMapView;
import dk.thoerup.traininfo.util.IntSet;
import dk.thoerup.traininfo.util.MessageBox;

public class StationList extends ListActivity  {

        
        public static final int OPTIONS_MAP = 103;
        public static final int OPTIONS_GPSINFO = 104;
        
        public static final int DLG_PROGRESS = 3001;
        
        
        public static final int GPS_TIMEOUT_MS = 15000; //how long are we willing to wait for gps fix -in milliseconds
        
        
        static enum LookupMethod {
                ByLocation,
                ByName,
                ByList,
                MethodNone
        }
        
        
        String dialogMessage = "";
        ProgressDialog dialog;
        LocationLookup locationLookup = null;
        StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
        
        //GeoPair location = new GeoPair();

        boolean isLaunchedforShortcut;

        StationBean stations = new StationBean();
        
        StationProvider stationProvider = ProviderFactory.getStationProvider();
                
        StationListAdapter adapter = null;
        
        FavoritesMenu contextMenu = new FavoritesMenu();
        IntSet favorites = new IntSet();

        WelcomeScreen.ListType listType;
        SharedPreferences prefs;
                        
        ///////////////////////////////////////////////////////////////////////////////////////////
        //Activity call backs
        

        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.stationlist);
                
                listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
                
                adapter = new StationListAdapter(this, (listType == ListType.ListNearest) );
                setListAdapter(adapter);
                
                ListView lv = getListView();
                lv.setOnCreateContextMenuListener(contextMenu);
                
                locationLookup = new LocationLookup(this);
                

                prefs = getSharedPreferences("TrainStation", 0);
                String favoriteString = prefs.getString("favorites", "");
                if (! favoriteString.equals("") ) {
                        favorites.fromString(favoriteString);
                }
                
                setTitle();
                
                isLaunchedforShortcut = getIntent().getBooleanExtra("shortcut", false);
                
                ProviderFactory.purgeOldEntries(); //cleanup before fetching more data
                
                if (listType == ListType.ListSearch) {
                        enableNamesearchField();
                }
                
                if (savedInstanceState == null) {
                
                        switch (listType) {
                        case ListNearest:
                                startNearestLookup();
                                break;
                        case ListSearch:                                
                                // do nothing here
                                break;
                        case ListFavorites:
                                startFavoriteLookup();
                                break;
                        default:
                                // Not possible !?!
                        }
                        
                } else {
                        stations = (StationBean) savedInstanceState.getSerializable("stations");
                        adapter.setStations(stations);
                }
                
        }
        
        
        @Override
        protected void onDestroy() {
                super.onDestroy();
                
                stationsFetched.removeMessages(0);
                
                
                if (locationLookup != null) {
                        locationLookup.stopSearch();
                }
        
        }

        
        protected void setTitle() {
                String dialogTitle = getResources().getString(app_name);
                switch (listType) {
                case ListNearest:
                        dialogTitle += " - " + getString(stationlist_nearbystations);
                        break;
                case ListSearch:
                        dialogTitle += " - " + getString(stationlist_search);
                        break;
                case ListFavorites:
                        dialogTitle += " - " + getString(stationlist_favorites);
                        break;
                default:
                        dialogTitle = "";//not possible                                 
                }
        
                setTitle(dialogTitle);
                
        }
        
        
        public void enableNamesearchField() {
                final TextView stationSearch = (TextView) findViewById(R.id.stationsearch);
                stationSearch.setVisibility( View.VISIBLE );
                stationSearch.addTextChangedListener( new TextWatcher() {

                        @Override
                        public void afterTextChanged(Editable s) {
                                if (s.length() > 0) {
                                        startNameLookup( s.toString() );
                                } else {
                                        stations = new StationBean();
                                        getListView().invalidateViews();
                                        adapter.setStations( stations );        
                                }
                        }

                        @Override
                        public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                        }

                        @Override
                        public void onTextChanged(CharSequence s, int start, int before, int count) {
                        }
                        
                });
                
                
        }
                

    @Override 
    public void onSaveInstanceState(Bundle outState) 
    {
        if (dialog != null && dialog.isShowing())
                dialog.dismiss();
        outState.putSerializable("stations", (StationBean) stations);
        
    }
        
        
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                MenuItem item;
                
                item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
                item.setIcon(android.R.drawable.ic_menu_info_details);
                boolean hasLoc = (locationLookup.getLocation() != null);
                item.setEnabled(hasLoc);
                
                return true;
        }
        

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                boolean retval = true;


                switch (item.getItemId()) {
                case OPTIONS_MAP:
                        
                        if ( stations == null || stations.entries == null || stations.entries.size() == 0 ) {
                                Toast.makeText(this, "No stations to show on map", Toast.LENGTH_SHORT).show(); //TODO: Translate
                                return true;
                        }
                        
                        Intent intent = new Intent(this,StationMapView.class);
                        
                        ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
                        for (StationEntry st : stations.entries ) {
                                stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
                        }
                        
                        intent.putExtra("stations", stationPoints);
                        
                        startActivity(intent);
                        break;
                case OPTIONS_GPSINFO:
                        Location loc = locationLookup.getLocation();
                        StringBuffer message = new StringBuffer();
                        message.append( getString(stationlist_locationinfo) ).append(":\n");
                         
                        message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
                        message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
                        message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
                        message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
                                                
                        
                        MessageBox.showMessage(this, message.toString(), false);
                        break;
                default:
                        retval = super.onOptionsItemSelected(item);
                }
                
                return retval;
        }
        
        
        @Override
        public boolean onContextItemSelected(MenuItem item) {
                contextMenu.onContextItemSelected(item);
                return true;


        }
        
        public void showMessageAndClose(String message) {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setMessage(message)
                .setCancelable(false)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                                dialog.dismiss();
                                StationList.this.finish();
                        }
                })
                .show();
        }


        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);
                        dlg.setMessage( getString(stationlist_waitforlocation) );
                        dlg.setCancelable(false);
                        return dlg;                     
                        
                default:
                        return super.onCreateDialog(id);                
                }
                
        }
        
        
        @Override
        protected void onPrepareDialog(int id, Dialog dialog) {
                super.onPrepareDialog(id, dialog);
                switch (id) {
                case DLG_PROGRESS:
                        this.dialog = (ProgressDialog) dialog;
                        if (!dialogMessage.equals("")) {
                                this.dialog.setMessage(dialogMessage);
                                dialogMessage = "";
                        }
                        break;
                }
        }
        
        @Override
        protected void onListItemClick(ListView l, View v, int position, long id) {
                super.onListItemClick(l, v, position, id);
                                
                StationEntry station = stations.entries.get(position);
                
                if (isLaunchedforShortcut == true) {
                        Intent i = new Intent();
                        i.putExtra("station", station);
                        setResult(Activity.RESULT_OK, i);
                        finish();
                } else {                
                        Intent intent = new Intent(this, DepartureList.class);
                        intent.putExtra("stationbean", station);
                        startActivity(intent);
                }
        }

        /////////////////////////////////////////////////////////////
        //

        public void startNearestLookup() {
                dialogMessage = getString( stationlist_waitforlocation );
                showDialog(DLG_PROGRESS);
                
                locationLookup.locateStations();
                stationsFetched.sendEmptyMessageDelayed(0, 500);
        }
        
        void startNameLookup(String name) {
                
                stations = stationProvider.lookupStationsByName(name);
                getListView().invalidateViews();
                adapter.setStations( stations );                                
        }
        
        public void startFavoriteLookup() {
                
                if (favorites.size() > 0) {
                        
                        stations = stationProvider.lookupStationsByIds( favorites.toString() );
                        getListView().invalidateViews();
                        adapter.setStations( stations );                
                        
                        
                } else {
                        showMessageAndClose( getString( stationlist_nofavorites ) );
                }
        }


        void startNearestLookupPhase2()
        {       
                stations = stationProvider.lookupStationsByLocation( locationLookup.getLocation() );
                getListView().invalidateViews();
                adapter.setStations( stations );
        }
                
        
        ////////////////////////////////////////////////////////////////////////////
        // Inner classes

        class StationsFetchedHandler extends Handler {
                @Override
                public void handleMessage(Message msg) {

                        LocationLookup.LookupStates state = locationLookup.getState();


                        switch (state) {
                        case GOTLOCATION:
                                dismissDialog(DLG_PROGRESS);

                                startNearestLookupPhase2();

                                return;

                        case NOPROVIDER:
                                dismissDialog(DLG_PROGRESS);
                                MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
                                //StationList.this.finish();
                                return;
                        case IDLE:
                                Log.e("TrainInfo", "How did this happen ???");
                                dismissDialog(DLG_PROGRESS); // how did we get here ??
                                return;
                                
                        }


                        if (locationLookup.elapsedTime() >=  GPS_TIMEOUT_MS) {
                                dismissDialog(DLG_PROGRESS);


                                locationLookup.stopSearch();

                                if (locationLookup.hasLocation()) {
                                        startNearestLookupPhase2();
                                } else {                                                
                                        AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                        builder.setMessage(  getString( stationlist_gpstimeout) );
                                        builder.setCancelable(true);
                                        builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                                public void onClick(DialogInterface dialog, int id) {
                                                        dialog.dismiss();
                                                        startNearestLookup();

                                                }
                                        });
                                        builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
                                                public void onClick(DialogInterface dialog, int id) {
                                                        dialog.dismiss();
                                                        StationList.this.finish(); // Close this Activity
                                                }                                                       
                                        });
                                        builder.show(); 

                                }
                        } else {
                                if (locationLookup.hasGps()) {
                                        int count = locationLookup.getSatCount();
                                        String dialogMessage = getString( stationlist_waitforlocation ) + "\n" + getString( stationlist_satellitecount ) + ": " + count;
                                        dialog.setMessage( dialogMessage );
                                }
                                this.sendEmptyMessageDelayed(0, 500);
                        }
                        
                }
        }


        class FavoritesMenu implements OnCreateContextMenuListener {
                private final static int FAVORITES_ADD = 9001;
                private final static int FAVORITES_REMOVE = 9002;
                
                private int selectedPosition;
                
                
                @Override
                public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
                                                
                        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
                        selectedPosition = info.position;
                        int stationID = stations.entries.get(selectedPosition).getId();

                        if (!favorites.contains(stationID)) {
                                menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
                        } else {
                                menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
                        }
                        
                }
                
                public void onContextItemSelected(MenuItem item) {
                        StationEntry sb = stations.entries.get(selectedPosition);
                        
                        int stationID = sb.getId();
                        if (item.getItemId() == FAVORITES_ADD) {
                                favorites.add(stationID);
                                Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
                        } else {
                                
                                favorites.remove(stationID);
                                Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
                                
                                
                                if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
                                        stations.entries.remove(selectedPosition);
                                        adapter.notifyDataSetChanged();
                                }
                        }
                        Editor ed = prefs.edit();
                        ed.putString("favorites", favorites.toString());
                        ed.commit();
                }
        }
}
1	package dk.thoerup.traininfo;
2
3	import static dk.thoerup.traininfo.R.string.app_name;
4	import static dk.thoerup.traininfo.R.string.generic_cancel;
5	import static dk.thoerup.traininfo.R.string.generic_retry;
6	import static dk.thoerup.traininfo.R.string.stationlist_accuracy;
7	import static dk.thoerup.traininfo.R.string.stationlist_addfavorite;
8	import static dk.thoerup.traininfo.R.string.stationlist_favorites;
9	import static dk.thoerup.traininfo.R.string.stationlist_gpsinfo;
10	import static dk.thoerup.traininfo.R.string.stationlist_gpstimeout;
11	import static dk.thoerup.traininfo.R.string.stationlist_latitude;
12	import static dk.thoerup.traininfo.R.string.stationlist_locationinfo;
13	import static dk.thoerup.traininfo.R.string.stationlist_longitude;
14	import static dk.thoerup.traininfo.R.string.stationlist_nearbystations;
15	import static dk.thoerup.traininfo.R.string.stationlist_nofavorites;
16	import static dk.thoerup.traininfo.R.string.stationlist_nolocationprovider;
17	import static dk.thoerup.traininfo.R.string.stationlist_obtainedby;
18	import static dk.thoerup.traininfo.R.string.stationlist_removefavorite;
19	import static dk.thoerup.traininfo.R.string.stationlist_satellitecount;
20	import static dk.thoerup.traininfo.R.string.stationlist_search;
21	import static dk.thoerup.traininfo.R.string.stationlist_stationadded;
22	import static dk.thoerup.traininfo.R.string.stationlist_stationmap;
23	import static dk.thoerup.traininfo.R.string.stationlist_stationremoved;
24	import static dk.thoerup.traininfo.R.string.stationlist_waitforlocation;
25
26	import java.util.ArrayList;
27
28	import android.app.Activity;
29	import android.app.AlertDialog;
30	import android.app.Dialog;
31	import android.app.ListActivity;
32	import android.app.ProgressDialog;
33	import android.content.DialogInterface;
34	import android.content.Intent;
35	import android.content.SharedPreferences;
36	import android.content.SharedPreferences.Editor;
37	import android.location.Location;
38	import android.os.Bundle;
39	import android.os.Handler;
40	import android.os.Message;
41	import android.text.Editable;
42	import android.text.TextWatcher;
43	import android.util.Log;
44	import android.view.ContextMenu;
45	import android.view.ContextMenu.ContextMenuInfo;
46	import android.view.Menu;
47	import android.view.MenuItem;
48	import android.view.View;
49	import android.view.View.OnCreateContextMenuListener;
50	import android.widget.AdapterView;
51	import android.widget.ListView;
52	import android.widget.TextView;
53	import android.widget.Toast;
54	import dk.thoerup.android.traininfo.common.StationBean;
55	import dk.thoerup.android.traininfo.common.StationEntry;
56	import dk.thoerup.traininfo.WelcomeScreen.ListType;
57	import dk.thoerup.traininfo.provider.ProviderFactory;
58	import dk.thoerup.traininfo.provider.StationProvider;
59	import dk.thoerup.traininfo.stationmap.GeoPair;
60	import dk.thoerup.traininfo.stationmap.StationMapView;
61	import dk.thoerup.traininfo.util.IntSet;
62	import dk.thoerup.traininfo.util.MessageBox;
63
64	public class StationList extends ListActivity {
65
66
67
68	public static final int OPTIONS_MAP = 103;
69	public static final int OPTIONS_GPSINFO = 104;
70
71	public static final int DLG_PROGRESS = 3001;
72
73
74	public static final int GPS_TIMEOUT_MS = 15000; //how long are we willing to wait for gps fix -in milliseconds
75
76
77	static enum LookupMethod {
78	ByLocation,
79	ByName,
80	ByList,
81	MethodNone
82	}
83
84
85	String dialogMessage = "";
86	ProgressDialog dialog;
87	LocationLookup locationLookup = null;
88	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
89
90	//GeoPair location = new GeoPair();
91
92	boolean isLaunchedforShortcut;
93
94	StationBean stations = new StationBean();
95
96	StationProvider stationProvider = ProviderFactory.getStationProvider();
97
98	StationListAdapter adapter = null;
99
100	FavoritesMenu contextMenu = new FavoritesMenu();
101	IntSet favorites = new IntSet();
102
103	WelcomeScreen.ListType listType;
104	SharedPreferences prefs;
105
106	///////////////////////////////////////////////////////////////////////////////////////////
107	//Activity call backs
108
109
110	@Override
111	public void onCreate(Bundle savedInstanceState) {
112	super.onCreate(savedInstanceState);
113	setContentView(R.layout.stationlist);
114
115	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
116
117	adapter = new StationListAdapter(this, (listType == ListType.ListNearest) );
118	setListAdapter(adapter);
119
120	ListView lv = getListView();
121	lv.setOnCreateContextMenuListener(contextMenu);
122
123	locationLookup = new LocationLookup(this);
124
125
126	prefs = getSharedPreferences("TrainStation", 0);
127	String favoriteString = prefs.getString("favorites", "");
128	if (! favoriteString.equals("") ) {
129	favorites.fromString(favoriteString);
130	}
131
132	setTitle();
133
134	isLaunchedforShortcut = getIntent().getBooleanExtra("shortcut", false);
135
136	ProviderFactory.purgeOldEntries(); //cleanup before fetching more data
137
138	if (listType == ListType.ListSearch) {
139	enableNamesearchField();
140	}
141
142	if (savedInstanceState == null) {
143
144	switch (listType) {
145	case ListNearest:
146	startNearestLookup();
147	break;
148	case ListSearch:
149	// do nothing here
150	break;
151	case ListFavorites:
152	startFavoriteLookup();
153	break;
154	default:
155	// Not possible !?!
156	}
157
158	} else {
159	stations = (StationBean) savedInstanceState.getSerializable("stations");
160	adapter.setStations(stations);
161	}
162
163	}
164
165
166
167
168
169
170	@Override
171	protected void onDestroy() {
172	super.onDestroy();
173
174	stationsFetched.removeMessages(0);
175
176
177	if (locationLookup != null) {
178	locationLookup.stopSearch();
179	}
180
181	}
182
183
184	protected void setTitle() {
185	String dialogTitle = getResources().getString(app_name);
186	switch (listType) {
187	case ListNearest:
188	dialogTitle += " - " + getString(stationlist_nearbystations);
189	break;
190	case ListSearch:
191	dialogTitle += " - " + getString(stationlist_search);
192	break;
193	case ListFavorites:
194	dialogTitle += " - " + getString(stationlist_favorites);
195	break;
196	default:
197	dialogTitle = "";//not possible
198	}
199
200	setTitle(dialogTitle);
201
202	}
203
204
205	public void enableNamesearchField() {
206	final TextView stationSearch = (TextView) findViewById(R.id.stationsearch);
207	stationSearch.setVisibility( View.VISIBLE );
208	stationSearch.addTextChangedListener( new TextWatcher() {
209
210	@Override
211	public void afterTextChanged(Editable s) {
212	if (s.length() > 0) {
213	startNameLookup( s.toString() );
214	} else {
215	stations = new StationBean();
216	getListView().invalidateViews();
217	adapter.setStations( stations );
218	}
219	}
220
221	@Override
222	public void beforeTextChanged(CharSequence s, int start, int count, int after) {
223	}
224
225	@Override
226	public void onTextChanged(CharSequence s, int start, int before, int count) {
227	}
228
229	});
230
231
232	}
233
234
235	@Override
236	public void onSaveInstanceState(Bundle outState)
237	{
238	if (dialog != null && dialog.isShowing())
239	dialog.dismiss();
240	outState.putSerializable("stations", (StationBean) stations);
241
242	}
243
244
245
246	@Override
247	public boolean onCreateOptionsMenu(Menu menu) {
248	MenuItem item;
249
250	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
251	item.setIcon(android.R.drawable.ic_menu_mapmode);
252
253	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
254	item.setIcon(android.R.drawable.ic_menu_info_details);
255	boolean hasLoc = (locationLookup.getLocation() != null);
256	item.setEnabled(hasLoc);
257
258	return true;
259	}
260
261
262
263
264	@Override
265	public boolean onOptionsItemSelected(MenuItem item) {
266	boolean retval = true;
267
268
269	switch (item.getItemId()) {
270	case OPTIONS_MAP:
271
272	if ( stations == null \|\| stations.entries == null \|\| stations.entries.size() == 0 ) {
273	Toast.makeText(this, "No stations to show on map", Toast.LENGTH_SHORT).show(); //TODO: Translate
274	return true;
275	}
276
277	Intent intent = new Intent(this,StationMapView.class);
278
279	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
280	for (StationEntry st : stations.entries ) {
281	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
282	}
283
284	intent.putExtra("stations", stationPoints);
285
286	startActivity(intent);
287	break;
288	case OPTIONS_GPSINFO:
289	Location loc = locationLookup.getLocation();
290	StringBuffer message = new StringBuffer();
291	message.append( getString(stationlist_locationinfo) ).append(":\n");
292
293	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
294	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
295	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
296	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
297
298
299	MessageBox.showMessage(this, message.toString(), false);
300	break;
301	default:
302	retval = super.onOptionsItemSelected(item);
303	}
304
305	return retval;
306	}
307
308
309
310	@Override
311	public boolean onContextItemSelected(MenuItem item) {
312	contextMenu.onContextItemSelected(item);
313	return true;
314
315
316	}
317
318	public void showMessageAndClose(String message) {
319	AlertDialog.Builder builder = new AlertDialog.Builder(this);
320	builder.setMessage(message)
321	.setCancelable(false)
322	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
323	public void onClick(DialogInterface dialog, int id) {
324	dialog.dismiss();
325	StationList.this.finish();
326	}
327	})
328	.show();
329	}
330
331
332
333
334	@Override
335	protected Dialog onCreateDialog(int id) {
336	switch (id) {
337	case DLG_PROGRESS:
338	ProgressDialog dlg = new ProgressDialog(this);
339	dlg.setMessage( getString(stationlist_waitforlocation) );
340	dlg.setCancelable(false);
341	return dlg;
342
343	default:
344	return super.onCreateDialog(id);
345	}
346
347	}
348
349
350	@Override
351	protected void onPrepareDialog(int id, Dialog dialog) {
352	super.onPrepareDialog(id, dialog);
353	switch (id) {
354	case DLG_PROGRESS:
355	this.dialog = (ProgressDialog) dialog;
356	if (!dialogMessage.equals("")) {
357	this.dialog.setMessage(dialogMessage);
358	dialogMessage = "";
359	}
360	break;
361	}
362	}
363
364	@Override
365	protected void onListItemClick(ListView l, View v, int position, long id) {
366	super.onListItemClick(l, v, position, id);
367
368	StationEntry station = stations.entries.get(position);
369
370	if (isLaunchedforShortcut == true) {
371	Intent i = new Intent();
372	i.putExtra("station", station);
373	setResult(Activity.RESULT_OK, i);
374	finish();
375	} else {
376	Intent intent = new Intent(this, DepartureList.class);
377	intent.putExtra("stationbean", station);
378	startActivity(intent);
379	}
380	}
381
382	/////////////////////////////////////////////////////////////
383	//
384
385	public void startNearestLookup() {
386	dialogMessage = getString( stationlist_waitforlocation );
387	showDialog(DLG_PROGRESS);
388
389	locationLookup.locateStations();
390	stationsFetched.sendEmptyMessageDelayed(0, 500);
391	}
392
393	void startNameLookup(String name) {
394
395	stations = stationProvider.lookupStationsByName(name);
396	getListView().invalidateViews();
397	adapter.setStations( stations );
398	}
399
400	public void startFavoriteLookup() {
401
402	if (favorites.size() > 0) {
403
404	stations = stationProvider.lookupStationsByIds( favorites.toString() );
405	getListView().invalidateViews();
406	adapter.setStations( stations );
407
408
409	} else {
410	showMessageAndClose( getString( stationlist_nofavorites ) );
411	}
412	}
413
414
415
416	void startNearestLookupPhase2()
417	{
418	stations = stationProvider.lookupStationsByLocation( locationLookup.getLocation() );
419	getListView().invalidateViews();
420	adapter.setStations( stations );
421	}
422
423
424	////////////////////////////////////////////////////////////////////////////
425	// Inner classes
426
427	class StationsFetchedHandler extends Handler {
428	@Override
429	public void handleMessage(Message msg) {
430
431	LocationLookup.LookupStates state = locationLookup.getState();
432
433
434	switch (state) {
435	case GOTLOCATION:
436	dismissDialog(DLG_PROGRESS);
437
438	startNearestLookupPhase2();
439
440	return;
441
442	case NOPROVIDER:
443	dismissDialog(DLG_PROGRESS);
444	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
445	//StationList.this.finish();
446	return;
447	case IDLE:
448	Log.e("TrainInfo", "How did this happen ???");
449	dismissDialog(DLG_PROGRESS); // how did we get here ??
450	return;
451
452	}
453
454
455
456	if (locationLookup.elapsedTime() >= GPS_TIMEOUT_MS) {
457	dismissDialog(DLG_PROGRESS);
458
459
460	locationLookup.stopSearch();
461
462	if (locationLookup.hasLocation()) {
463	startNearestLookupPhase2();
464	} else {
465	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
466	builder.setMessage( getString( stationlist_gpstimeout) );
467	builder.setCancelable(true);
468	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
469	public void onClick(DialogInterface dialog, int id) {
470	dialog.dismiss();
471	startNearestLookup();
472
473	}
474	});
475	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
476	public void onClick(DialogInterface dialog, int id) {
477	dialog.dismiss();
478	StationList.this.finish(); // Close this Activity
479	}
480	});
481	builder.show();
482
483	}
484	} else {
485	if (locationLookup.hasGps()) {
486	int count = locationLookup.getSatCount();
487	String dialogMessage = getString( stationlist_waitforlocation ) + "\n" + getString( stationlist_satellitecount ) + ": " + count;
488	dialog.setMessage( dialogMessage );
489	}
490	this.sendEmptyMessageDelayed(0, 500);
491	}
492
493	}
494	}
495
496
497
498
499	class FavoritesMenu implements OnCreateContextMenuListener {
500	private final static int FAVORITES_ADD = 9001;
501	private final static int FAVORITES_REMOVE = 9002;
502
503	private int selectedPosition;
504
505
506	@Override
507	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
508
509	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
510	selectedPosition = info.position;
511	int stationID = stations.entries.get(selectedPosition).getId();
512
513	if (!favorites.contains(stationID)) {
514	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
515	} else {
516	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
517	}
518
519	}
520
521	public void onContextItemSelected(MenuItem item) {
522	StationEntry sb = stations.entries.get(selectedPosition);
523
524	int stationID = sb.getId();
525	if (item.getItemId() == FAVORITES_ADD) {
526	favorites.add(stationID);
527	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
528	} else {
529
530	favorites.remove(stationID);
531	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
532
533
534	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
535	stations.entries.remove(selectedPosition);
536	adapter.notifyDataSetChanged();
537	}
538	}
539	Editor ed = prefs.edit();
540	ed.putString("favorites", favorites.toString());
541	ed.commit();
542	}
543	}
544	}