Graphics API: draw circle (#295)

vtm/src/org/oscim/backend/canvas/Canvas.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2013 Hannes Janetzek
  * Copyright 2016 devemux86
+ * Copyright 2017 nebular
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
  *
@@ -42,6 +43,8 @@ public interface Canvas {
      */
     void drawBitmap(Bitmap bitmap, float x, float y);
 
+    void drawCircle(float x, float y, float radius, Paint paint);
+
     void drawLine(int x1, int y1, int x2, int y2, Paint paint);
 
     void fillColor(int color);

vtm/src/org/oscim/backend/canvas/Paint.java

@@ -2,6 +2,7 @@
  * Copyright 2010, 2011, 2012 mapsforge.org
  * Copyright 2013 Hannes Janetzek
  * Copyright 2016 devemux86
+ * Copyright 2017 nebular
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
  *
@@ -73,6 +74,8 @@ public interface Paint {
 
     float getStrokeWidth();
 
+    Style getStyle();
+
     float getTextHeight(String text);
 
     float getTextWidth(String text);