implement max level to download

git-svn-id: https://osmand.googlecode.com/svn/trunk@207 e29c36b1-1cfa-d876-8d93-3434fc2bb7b8

DataExtractionOSM/src/com/osmand/ToDoConstants.java

@@ -17,14 +17,14 @@ public class ToDoConstants {
 	 // TODO ANDROID 
 	//   42. Revise UI (icons/layouts). Support different devices. Add inactive/focus(!) icon versions.
 	//		 Some icons are not fine (as back menu from map - it is blured).
+	//       Got by Andrei
 	
-	//   46. Implement downloading strategy for tiles : select max zoom to download [16,15,14,...]
-	// 		 That means you can save internet because from [16 -> zoom -> 18], [14 -> zoom -> 16 - suitable for speed > 40], ...
-	
-	//   61. Provide route information for YOURS (calclate turns/angle/expected time)
-    //   60. Audio guidance for routing
-	//   58. Upload/Download zip-index from site & unzip them on phone
 	//   50. Invent opening hours editor in order to edit POI hours better on device
+	//		 GOT by Olga
+	
+    //   60. Audio guidance for routing
+	//   61. Provide route information for YOURS (calclate turns/angle/expected time)
+	//   58. Upload/Download zip-index from site & unzip them on phone
 	//   53. Add progress bars : to internet communication activities [editing/commiting/deleting poi], do not hide edit poi dialog if operation failed 
 	//		 [move close buttons from alertdialog to own view]
 	//   55. Update POI data from internet for selected area [suggest to create new POI index or extend exising of none exist]
@@ -58,6 +58,8 @@ public class ToDoConstants {
 	//   57. Implement routing information about expected time arriving
 	//   58. Implement difference about show route/follow route (show travel time/arrival time, show mini map/next turn, etc)
 	//   59. Show route information (directions/time, ....). Now is shown in context menu route (about route)
+	//   46. Implement downloading strategy for tiles : select max zoom to download [16,15,14,...]
+	// 		 That means you can save internet because from [16 -> zoom -> 18], [14 -> zoom -> 16 - suitable for speed > 40], ...
 	
 	// DONE SWING
 

OsmAnd/res/values-ru-rRU/strings.xml

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+	<string name="max_level_download_tile">Уровень детализация</string>
+	<string name="max_level_download_tile_descr">Выберите максимальный уровень для загрузки из интернета</string>
 	<string name="route_about">О маршруте</string>
 	<string name="route_general_information">Общая протяженность = {0}, время в пути = ''{1}''.</string>
 	<string name="router_service_descr">Выберите сервис для прокладки маршрута</string>

OsmAnd/res/values/strings.xml

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+	<string name="max_level_download_tile">Max zoom level</string>
+	<string name="max_level_download_tile_descr">Choose max zoom level to download using internet</string>
 	<string name="route_about">About route</string>
 	<string name="route_general_information">Overall distance = {0}, travelling time = ''{1}''.</string>
 	<string name="router_service_descr">Choose routing service</string>

OsmAnd/res/xml/settings_pref.xml

@@ -7,6 +7,7 @@
 <PreferenceScreen android:title="@string/map_preferences" android:summary="@string/map_preferences_descr">
 <CheckBoxPreference android:key="use_internet_to_download_tiles" android:title="@string/use_internet" android:summary="@string/use_internet_to_download_tile"></CheckBoxPreference>
 <ListPreference android:title="@string/map_tile_source" android:summary="@string/map_tile_source_descr" android:key="map_tile_sources"></ListPreference>
+<ListPreference android:title="@string/max_level_download_tile" android:summary="@string/max_level_download_tile_descr" android:key="max_level_download_tile"></ListPreference>
 <CheckBoxPreference android:key="show_poi_over_map" android:title="@string/show_poi_over_map" android:summary="@string/show_poi_over_map_description"></CheckBoxPreference>
 <CheckBoxPreference android:title="@string/auto_zoom_map" android:summary="@string/auto_zoom_map_descr" android:key="auto_zoom_map"></CheckBoxPreference>
 <CheckBoxPreference android:key="show_view_angle" android:title="@string/show_view_angle" android:summary="@string/show_view_angle_descr"></CheckBoxPreference>

OsmAnd/src/com/osmand/OsmandSettings.java

@@ -191,6 +191,14 @@ public class OsmandSettings {
 		return prefs.getInt(POSITION_ON_MAP, CENTER_CONSTANT);
 	}
 	
+	// this value string is synchronized with settings_pref.xml preference name
+	public static final String MAX_LEVEL_TO_DOWNLOAD_TILE = "max_level_download_tile"; //$NON-NLS-1$
+
+	public static int getMaximumLevelToDownloadTile(Context ctx) {
+		SharedPreferences prefs = ctx.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_WORLD_READABLE);
+		return prefs.getInt(MAX_LEVEL_TO_DOWNLOAD_TILE, 18);
+	}
+
 	// this value string is synchronized with settings_pref.xml preference name
 	public static final String MAP_VIEW_3D = "map_view_3d"; //$NON-NLS-1$
 

OsmAnd/src/com/osmand/activities/SettingsActivity.java

@@ -48,6 +48,7 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 	private Preference reloadIndexes;
 	private Preference downloadIndexes;
 	private ListPreference routerPreference;
+	private ListPreference maxLevelToDownload;
 	
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -93,6 +94,8 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 		
 		positionOnMap =(ListPreference) screen.findPreference(OsmandSettings.POSITION_ON_MAP);
 		positionOnMap.setOnPreferenceChangeListener(this);
+		maxLevelToDownload =(ListPreference) screen.findPreference(OsmandSettings.MAX_LEVEL_TO_DOWNLOAD_TILE);
+		maxLevelToDownload.setOnPreferenceChangeListener(this);
 		tileSourcePreference =(ListPreference) screen.findPreference(OsmandSettings.MAP_TILE_SOURCES);
 		tileSourcePreference.setOnPreferenceChangeListener(this);
 		routerPreference =(ListPreference) screen.findPreference(OsmandSettings.ROUTER_SERVICE);
@@ -156,6 +159,16 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 		routerPreference.setEntryValues(entries);
 		routerPreference.setValue(entry);
 		
+		int startZoom = 12;
+		int endZoom = 19;
+		entries = new String[endZoom - startZoom + 1];
+		for (int i = startZoom; i <= endZoom; i++) {
+			entries[i - startZoom] = i + ""; //$NON-NLS-1$
+		}
+		maxLevelToDownload.setEntries(entries);
+		maxLevelToDownload.setEntryValues(entries);
+		maxLevelToDownload.setValue(OsmandSettings.getMaximumLevelToDownloadTile(this)+""); //$NON-NLS-1$
+		
 
 		List<TileSourceTemplate> list = TileSourceManager.getKnownSourceTemplates();
 		entries = new String[list.size()];
@@ -220,6 +233,9 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 		} else if(preference == positionOnMap){
 			edit.putInt(OsmandSettings.POSITION_ON_MAP, positionOnMap.findIndexOfValue((String) newValue));
 			edit.commit();
+		} else if (preference == maxLevelToDownload) {
+			edit.putInt(OsmandSettings.MAX_LEVEL_TO_DOWNLOAD_TILE, Integer.parseInt((String) newValue));
+			edit.commit();
 		} else if (preference == routerPreference) {
 			RouteService s = null;
 			for(RouteService r : RouteService.values()){

OsmAnd/src/com/osmand/views/OsmandMapTileView.java

@@ -373,6 +373,7 @@ public class OsmandMapTileView extends SurfaceView implements IMapDownloaderCall
 			if (canvas != null) {
 				ResourceManager mgr = ResourceManager.getResourceManager();
 				boolean useInternet = OsmandSettings.isUsingInternetToDownloadTiles(getContext());
+				int maxLevel = OsmandSettings.getMaximumLevelToDownloadTile(getContext());
 				canvas.save();
 				canvas.rotate(rotate, w , h);
 				boundsRect.set(0, 0, getWidth(), getHeight());
@@ -390,7 +391,8 @@ public class OsmandMapTileView extends SurfaceView implements IMapDownloaderCall
 							// asking tile image async
 							boolean imgExist = mgr.tileExistOnFileSystem(ordImgTile);
 							Bitmap bmp = null;
-							if (imgExist || useInternet) {
+							boolean originalBeLoaded = useInternet && zoom <= maxLevel;
+							if (imgExist || originalBeLoaded) {
 								bmp = mgr.getTileImageForMapAsync(ordImgTile, map, left + i, top + j, zoom, useInternet);
 							}
 							if (bmp == null) {
@@ -398,7 +400,7 @@ public class OsmandMapTileView extends SurfaceView implements IMapDownloaderCall
 								// asking if there is small version of the map (in cache)
 								String imgTile2 = mgr.calculateTileId(map, (left + i) / 2, (top + j) / 2, zoom - 1);
 								String imgTile4 = mgr.calculateTileId(map, (left + i) / 4, (top + j) / 4, zoom - 2);
-								if(useInternet || imgExist){
+								if(originalBeLoaded || imgExist){
 									bmp = mgr.getTileImageFromCache(imgTile2);
 									div = 2;
 									if(bmp == null){
@@ -406,12 +408,12 @@ public class OsmandMapTileView extends SurfaceView implements IMapDownloaderCall
 										div = 4;
 									}
 								}
-								if(!useInternet && !imgExist){
+								if(!originalBeLoaded && !imgExist){
-									if(mgr.tileExistOnFileSystem(imgTile2)){
+									if (mgr.tileExistOnFileSystem(imgTile2) || (useInternet && zoom - 1 <= maxLevel)) {
-										bmp = mgr.getTileImageForMapAsync(imgTile2, map, (left + i) / 2, (top + j) / 2, zoom - 1, false);
+										bmp = mgr.getTileImageForMapAsync(imgTile2, map, (left + i) / 2, (top + j) / 2, zoom - 1, useInternet);
 										div = 2;
-									} else if(mgr.tileExistOnFileSystem(imgTile4)){
+									} else if (mgr.tileExistOnFileSystem(imgTile4) || (useInternet && zoom - 2 <= maxLevel)) {
-										bmp = mgr.getTileImageForMapAsync(imgTile4, map, (left + i) / 4, (top + j) / 4, zoom - 2, false);
+										bmp = mgr.getTileImageForMapAsync(imgTile4, map, (left + i) / 4, (top + j) / 4, zoom - 2, useInternet);
 										div = 4;
 									}
 								}