class ['a] view_item : fill:bool -> delay:bool -> view:common_view -> pos:float * float -> ops_list:XDotDraw.operation list list -> item:'a -> object .. end
ViewItem class.
Group of shapes and texts
Inherits
GnoCanvas.group May the item be displayed non instantaneously?
method item : 'a
method zoom_text : float -> unit
method highlight : ?color:int32 * int32 -> unit -> unit
Change the color of the item. May be cancelled by dehighlight.
If color is primary,secondary, then
primary is used except if the current color is primary. In this
case, secondary is used.
method dehighlight : unit -> unit
Cancel highlight.
method show : unit -> unit
method hide : unit -> unit
method center : unit -> unit
method connect_event : callback:(GnoCanvas.item_event -> bool) -> unit
method compute : unit -> unit
apply all delayed operations
method lower_to_bottom : unit -> unit