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