Rect: operator method to offset by a Point.

firmware/common/ui.cpp

@@ -57,4 +57,9 @@ Rect& Rect::operator+=(const Rect& p) {
 	return *this;
 }
 
+Rect& Rect::operator+=(const Point& p) {
+	pos += p;
+	return *this;
+}
+
 } /* namespace ui */

firmware/common/ui.hpp

@@ -208,6 +208,7 @@ struct Rect {
 	}
 
 	Rect& operator+=(const Rect& p);
+	Rect& operator+=(const Point& p);
 
 	operator bool() const {
 		return !size.is_empty();