whole_func_string: function(r) {
  	    this.x += r.x;
  	    this.y += r.y;
  	    this.width += r.width;
  	    this.height += r.height;
  	    return this;
          }
func_code_string: function(r) {
  	    this.x += r.x;
  	    this.y += r.y;
  	    this.width += r.width;
  	    this.height += r.height;
  	    return this;
          }
func_documentation_string: Move and expand me. @param r {rectangle} representing deltas