resizeArea.translate(axis.getLeftEdge(resizeColumn - 1), 0);
resizeArea.setWidth(axis.getColumnWidth(resizeColumn - 1));
}
final Size minimumSize = new Size(70, 0);
return new ResizeDrag(this, resizeArea, ResizeDrag.RIGHT, minimumSize, null);
} else if (drag.getLocation().getY() <= height) {
return null;
} else {
return super.dragStart(drag);
}