diff options
Diffstat (limited to 'client.c')
| -rw-r--r-- | client.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/client.c b/client.c index 49b16c9..42fef6b 100644 --- a/client.c +++ b/client.c @@ -842,3 +842,32 @@ client_inbound(struct client_ctx *cc, int x, int y) return (x < cc->geom.width && x >= 0 && y < cc->geom.height && y >= 0); } + +int +client_snapcalc(int n, int dn, int nmax, int bwidth, int snapdist) +{ + int n0, n1, s0, s1; + + s0 = s1 = 0; + n0 = n; + n1 = n + dn + (bwidth * 2); + + if (abs(n0) <= snapdist) + s0 = -n0; + + if (nmax - snapdist <= n1 && n1 <= nmax + snapdist) + s1 = nmax - n1; + + /* possible to snap in both directions */ + if (s0 != 0 && s1 != 0) + if (abs(s0) < abs(s1)) + return s0; + else + return s1; + else if (s0 != 0) + return s0; + else if (s1 != 0) + return s1; + else + return 0; +} |