1 files changed, 48 insertions, 0 deletions
diff --git a/main/src/cgeo/geocaching/maps/mapsforge/MapsforgeMapController.java b/main/src/cgeo/geocaching/maps/mapsforge/MapsforgeMapController.java
new file mode 100644
index 0000000..9cdb80f
--- /dev/null
+++ b/main/src/cgeo/geocaching/maps/mapsforge/MapsforgeMapController.java
@@ -0,0 +1,48 @@
+package cgeo.geocaching.maps.mapsforge;
+
+import cgeo.geocaching.maps.interfaces.GeoPointImpl;
+import cgeo.geocaching.maps.interfaces.MapControllerImpl;
+
+import org.mapsforge.android.maps.GeoPoint;
+import org.mapsforge.android.maps.MapController;
+
+public class MapsforgeMapController implements MapControllerImpl {
+
+    private MapController mapController;
+    private int maxZoomLevel;
+
+    public MapsforgeMapController(MapController mapControllerIn, int maxZoomLevelIn) {
+        mapController = mapControllerIn;
+        maxZoomLevel = maxZoomLevelIn;
+    }
+
+    @Override
+    public void animateTo(GeoPointImpl geoPoint) {
+        mapController.setCenter((GeoPoint) geoPoint);
+    }
+
+    @Override
+    public void setCenter(GeoPointImpl geoPoint) {
+        mapController.setCenter((GeoPoint) geoPoint);
+    }
+
+    @Override
+    public void setZoom(int mapzoom) {
+        int mfzoom = mapzoom - 1;
+        if (mfzoom > maxZoomLevel) {
+            mfzoom = maxZoomLevel;
+        }
+        mapController.setZoom(mfzoom);
+    }
+
+    @Override
+    public void zoomToSpan(int latSpanE6, int lonSpanE6) {
+
+        if (latSpanE6 != 0 && lonSpanE6 != 0) {
+            // calculate zoomlevel
+            int distDegree = Math.max(latSpanE6, lonSpanE6);
+            int zoomLevel = (int) Math.floor(Math.log(360.0 * 1e6 / distDegree) / Math.log(2));
+            mapController.setZoom(zoomLevel + 1);
+        }
+    }
+}