Add warning for long routes

OsmAnd/res/layout/calculate_route.xml

@@ -3,7 +3,8 @@
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     android:orientation="vertical" >
-
+	<TextView android:id="@+id/ValidateTextView" android:textSize="16sp"  android:visibility="gone"  android:layout_width="fill_parent" android:layout_height="wrap_content" 
+	    	android:text="" android:gravity="center" android:textColor="@color/color_invalid"></TextView>
     <LinearLayout
         android:id="@+id/LinearLayout"
         android:layout_width="fill_parent"

OsmAnd/res/values/strings.xml

@@ -9,6 +9,8 @@
          3. All your modified/created strings are in the top of the file (to make easier find what\'s translated).
     PLEASE: Have a look at http://code.google.com/p/osmand/wiki/UIConsistency, it may really improve your and our work  :-)  Thx - Hardy
     -->
+    <string name="route_is_too_long">The possible route is too long to be calculated by OsmAnd offline router. 
+        In average routing is possible between points located in 200km radius, please add a waypoint to see the route. </string>
     <string name="route_distance_none">No auto zoom</string>
     <string name="route_distance_close">To close-up</string>
     <string name="route_distance_far">To mid-range</string>

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

@@ -8,6 +8,7 @@ import net.osmand.Location;
 import net.osmand.StateChangedListener;
 import net.osmand.data.LatLon;
 import net.osmand.plus.routing.RoutingHelper;
+import net.osmand.util.MapUtils;
 
 public class TargetPointsHelper {
 
@@ -16,11 +17,9 @@ public class TargetPointsHelper {
 	private LatLon pointToNavigate = null;
 	private OsmandSettings settings;
 	private RoutingHelper routingHelper;
-	private ClientContext ctx;
 	private List<StateChangedListener<Void>> listeners = new ArrayList<StateChangedListener<Void>>();
 	
 	public TargetPointsHelper(ClientContext ctx){
-		this.ctx = ctx;
 		this.settings = ctx.getSettings();
 		this.routingHelper = ctx.getRoutingHelper();
 		readFromSettings(settings);
@@ -164,6 +163,23 @@ public class TargetPointsHelper {
 		updateRouteAndReferesh(updateRoute);
 	}
 	
+	
+	public boolean hasLongDistancesInBetween(Location current, double dist) {
+		
+		List<LatLon> list = getIntermediatePointsWithTarget();
+		if(!list.isEmpty()) {
+			if(current != null && MapUtils.getDistance(list.get(0), current.getLatitude(), current.getLongitude()) > dist) {
+				return true;
+			}
+			for(int i = 1; i < list.size(); i++) {
+				if(MapUtils.getDistance(list.get(i-1), list.get(i)) > dist) {
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+	
 	public void navigateToPoint(LatLon point, boolean updateRoute, int intermediate){
 		navigateToPoint(point, updateRoute, intermediate, null);
 	}

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

@@ -538,6 +538,8 @@ public class MapActivityActions implements DialogProvider {
 		}
 		return view;
 	}
+	
+	
 	public void getDirections(final Location mapView, String name, DirectionDialogStyle style) {
 		final Location current = getLastKnownLocation();
 		Builder builder = new AlertDialog.Builder(mapActivity);
@@ -554,10 +556,15 @@ public class MapActivityActions implements DialogProvider {
 		buttons[ApplicationMode.PEDESTRIAN.ordinal()] = (ToggleButton) view.findViewById(R.id.PedestrianButton);
 		buttons[ApplicationMode.PEDESTRIAN.ordinal()].setButtonDrawable(R.drawable.ic_pedestrian);
 		
-		final Spinner fromSpinner = setupFromSpinner(mapView, name,view, style);
+		final Spinner fromSpinner = setupFromSpinner(mapView, name, view, style);
 		final List<LatLon> toList = new ArrayList<LatLon>();
 		final Spinner toSpinner = setupToSpinner(mapView, name,view, toList, style);
 		
+		if(targets.hasLongDistancesInBetween(current != null ? current : mapView, 150000)) {
+			TextView textView = (TextView) view.findViewById(R.id.ValidateTextView);
+			textView.setText(R.string.route_is_too_long);
+			textView.setVisibility(View.VISIBLE);
+		}
 		
 		String via = generateViaDescription();
 		if(via.length() == 0){