X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=source%2Fcolumn.cpp;h=811185dfcb669b717db499d24882aa9e4be474b5;hb=304500a51a1a9d00e3c84ed2a6ffda0f829445b4;hp=d31544ab2627ed88c5fc529c733651257e49caf9;hpb=b30edd979e6e9c7acfaaf3a90903814a7e62a71e;p=libs%2Fgltk.git

diff --git a/source/column.cpp b/source/column.cpp
index d31544a..811185d 100644
--- a/source/column.cpp
+++ b/source/column.cpp
@@ -12,6 +12,9 @@ Column::Column(Layout &l):
 
 void Column::split()
 {
+	if(gravity<0)
+		throw arrangement_error("already split");
+
 	split_here = true;
 	gravity = -1;
 }