Sets the reading direction for rendering purposes.
If you are using a gtk.StyleContext returned from Widget.getStyleContext, you do not need to call this yourself.
the new direction.
Deprecated: Use Style.contextSetState with GTK_STATE_FLAG_DIR_LTR and GTK_STATE_FLAG_DIR_RTL instead.
3.0
Sets the reading direction for rendering purposes.
If you are using a gtk.StyleContext returned from Widget.getStyleContext, you do not need to call this yourself.