1 files changed, 6 insertions, 0 deletions
diff --git a/util.h b/util.h
index 1654832..597dd70 100644
--- a/util.h
+++ b/util.h
@@ -8,6 +8,12 @@
 #define MIN(A, B)               ((A) < (B) ? (A) : (B))
 #define BETWEEN(X, A, B)        ((A) <= (X) && (X) <= (B))
 
+#define INTERSECT(x,y,w,h,r)  (MAX(0, MIN((x)+(w),(r).x_org+(r).width)  - MAX((x),(r).x_org)) \
+			       * MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org)))
+#define LENGTH(X)             (sizeof X / sizeof X[0])
+#define TEXTW(X)              (drw_fontset_getwidth(drw, (X)) + lrpad)
+
+
 void die(const char *fmt, ...);
 void *ecalloc(size_t nmemb, size_t size);