Add settings. Issue 419

OsmAnd/res/values/strings.xml

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8" standalone="no"?>
 <resources>
+	<string name="level_to_switch_vector_raster_descr">Max zoom level to use vector rendering instead of raster</string>
+	<string name="level_to_switch_vector_raster">Zoom vector level</string>
 	<string name="tip_location_sharing">Location sharing</string>
 	<string name="tip_location_sharing_t">Do you find some interresting place on your trip and want to share it\'s location with your friends or family?
 	\nOsmAnd affords you to easily share any location you want.

OsmAnd/res/xml/settings_pref.xml

@@ -50,6 +50,8 @@
 		<CheckBoxPreference android:key="show_view_angle" android:title="@string/show_view_angle" android:summary="@string/show_view_angle_descr"></CheckBoxPreference>
 		<ListPreference android:key="rotate_map" android:title="@string/rotate_map_to_bearing" android:summary="@string/rotate_map_to_bearing_descr"></ListPreference>
 		<ListPreference android:key="map_screen_orientation" android:title="@string/map_screen_orientation" android:summary="@string/map_screen_orientation_descr"></ListPreference>
+		<ListPreference android:title="@string/level_to_switch_vector_raster" android:summary="@string/level_to_switch_vector_raster_descr"
+			android:key="level_to_switch_vector_raster"></ListPreference>
 		<EditTextPreference android:title="@string/application_dir" android:key="external_storage_dir"></EditTextPreference>
 		<ListPreference android:key="default_metric_system" android:title="@string/unit_of_length" android:summary="@string/unit_of_length_descr"></ListPreference>
 		<ListPreference android:key="position_on_map" android:title="@string/position_on_map" android:summary="@string/position_on_map_descr"></ListPreference>

OsmAnd/src/net/osmand/plus/OsmandSettings.java

@@ -489,6 +489,9 @@ public class OsmandSettings {
 	// this value string is synchronized with settings_pref.xml preference name
 	public final OsmandPreference<Integer> MAX_LEVEL_TO_DOWNLOAD_TILE = new IntPreference("max_level_download_tile", 18, false, true);
 	
+	// this value string is synchronized with settings_pref.xml preference name
+	public final OsmandPreference<Integer> LEVEL_TO_SWITCH_VECTOR_RASTER = new IntPreference("level_to_switch_vector_raster", 5, false, true);
+
 	// this value string is synchronized with settings_pref.xml preference name
 	public final OsmandPreference<Boolean> MAP_VIEW_3D = new BooleanPreference("map_view_3d", false, false);
 

OsmAnd/src/net/osmand/plus/activities/SettingsActivity.java

@@ -206,6 +206,16 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 		}
 		registerListPreference(osmandSettings.MAX_LEVEL_TO_DOWNLOAD_TILE, screen, entries, intValues);
 		
+		startZoom = 3;
+		endZoom = 18;
+		entries = new String[endZoom - startZoom + 1];
+		intValues = new Integer[endZoom - startZoom + 1];
+		for (int i = startZoom; i <= endZoom; i++) {
+			entries[i - startZoom] = i + ""; //$NON-NLS-1$
+			intValues[i - startZoom] = i ;
+		}
+		registerListPreference(osmandSettings.LEVEL_TO_SWITCH_VECTOR_RASTER, screen, entries, intValues);
+		
 		entries = new String[RouteService.values().length];
 		for(int i=0; i<entries.length; i++){
 			entries[i] = RouteService.values()[i].getName();

OsmAnd/src/net/osmand/plus/render/RendererLayer.java

@@ -53,7 +53,8 @@ public class RendererLayer implements OsmandMapLayer {
 
 	@Override
 	public void onDraw(Canvas canvas, RectF latLonBounds, boolean nightMode) {
-		if (view.getZoom() >= startZoom && visible) {
+		Integer zoom = view.getSettings().LEVEL_TO_SWITCH_VECTOR_RASTER.get();
+		if (view.getZoom() >= Math.max(zoom, startZoom) && visible) {
 			if (!view.isZooming()){
 				pixRect.set(0, 0, view.getWidth(), view.getHeight());
 				updateRotatedTileBox();
@@ -95,6 +96,8 @@ public class RendererLayer implements OsmandMapLayer {
 					canvas.drawBitmap(bmp, null, destImage, paintImg);
 				}
 			}
+		} else {
+			resourceManager.getRenderer().clearCache();
 		}
 	}
 

OsmAnd/src/net/osmand/plus/views/OsmandMapTileView.java

@@ -23,7 +23,6 @@ import net.osmand.plus.views.MultiTouchSupport.MultiTouchZoomListener;
 import org.apache.commons.logging.Log;
 
 import android.content.Context;
-import android.content.SharedPreferences;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Color;