diff options
Diffstat (limited to 'sys/src/cmd/rio/rio.c')
| -rw-r--r-- | sys/src/cmd/rio/rio.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/src/cmd/rio/rio.c b/sys/src/cmd/rio/rio.c index a42721fac..458d26d34 100644 --- a/sys/src/cmd/rio/rio.c +++ b/sys/src/cmd/rio/rio.c @@ -392,13 +392,15 @@ whichrect(Rectangle r, Point p, int which) int portion(int x, int lo, int hi) { + int t; x -= lo; hi -= lo; - if(hi < 20) + t = min(20, max(1, hi/2)); + if(hi < t) return x > 0 ? 2 : 0; - if(x < 20) + if(x < t) return 0; - if(x > hi-20) + if(x > hi-t) return 2; return 1; } |