fix problem with measuring text and font substitutions

2012-03-23 15:55:11 -06:00 · 2012-03-23 15:55:11 -06:00 · 0b783f80b7
commit 0b783f80b7
parent dfb4bc112d
1 changed files with 2 additions and 1 deletions
--- a/collects/racket/draw/private/dc.rkt
+++ b/collects/racket/draw/private/dc.rkt
@ -1286,7 +1286,8 @@
              ;; breaks the string into multiple layouts.
              (let loop ([s s] [draw-mode draw-mode] [measured? #f] [w 0.0] [h 0.0] [d 0.0] [a 0.0])
                (cond
-                 [(not s)
+                 [(or (not s)
+                      (equal? s "")) ; can happen if last char is substituted
                  (when rotate? (cairo_restore cr))
                  (values w h d a)]
                 [else