highslide-software/highcharts.com — pull request #575 by giddie (2011-11-16 15:38:44+00:00)
Title: Provide option for custom positioning of the tooltip

(Successor to pull request #243; patched for Highcharts 2.1.9.)

This trivial commit makes it possible to define a custom positioner for the tooltip. That is, the user may define a custom replacement for the placeBox() method that positions the tooltip. This is useful for graphs that require strict control over tooltip positioning.