1 files changed, 30 insertions, 0 deletions

diff --git a/src/RectangleUtil.hh b/src/RectangleUtil.hh
new file mode 100644
index 0000000..88c3a33
--- /dev/null
+++ b/src/RectangleUtil.hh
@@ -0,0 +1,30 @@
+#ifndef RECTANGLEUTIL_HH
+#define RECTANGLEUTIL_HH
+
+namespace RectangleUtil {
+
+
+/*
+ * Determines if a point is inside a rectangle-like objects border.
+ * @param rect A rectangle-like object that has accessors for x, y, width, and
+ *        height.
+ * @param x
+ * @param y 
+ * @param border_width The size of the border.
+ * @returns true if point is inside the rectangle-like object.
+*/
+template <typename RectangleLike>
+bool insideBorder(const RectangleLike& rect,
+                  int x, int y,
+                  int border_width) {
+    return
+        x >= rect.x() + border_width &&
+        x < rect.x() + (int)rect.width() + border_width &&
+        y >= rect.y() + border_width &&
+        y < rect.y() + (int)rect.height() + border_width;
+}
+
+} // namespace RectangleUtil
+
+
+#endif // RECTANGLEUTIL_HH