A vertical line.
method children : t list
The children of the widget.
method parent : t option
The parent of the widget, if any.
method set_parent : t option -> unit
Sets the parent of the widget. This also affect
method focus : t option LTerm_geom.directions
Specify a target widget to the left, right, up and/or down when changing focus.
method set_focus : t option LTerm_geom.directions -> unit
Sets the target widgets when changing focus.
Enqueue a redraw operation. If the widget has a parent, this is the same as calling the
queue_draw method of the parent, otherwise this does nothing.
set_queue_draw f sets the function called when the
queue_draw method is invoked, for this widget and all its children.
method draw : LTerm_draw.context -> t -> unit
draw ctx focused draws the widget on the given context.
focused is the focused widget.
method cursor_position : LTerm_geom.coord option
Method invoked when the widget has the focus, it returns the position of the cursor inside the widget if it should be displayed.
method allocation : LTerm_geom.rect
The zone occuped by the widget.
method set_allocation : LTerm_geom.rect -> unit
Sets the zone occuped by the widget.
method send_event : LTerm_event.t -> unit
Send an event to the widget. If the widget cannot process the event, it is sent to the parent and so on.
method on_event : ?switch:LTerm_widget_callbacks.switch -> (LTerm_event.t -> bool) -> unit
on_event ?switch f calls
f each time an event is received. If
true, the event is not passed to other callbacks.
method size_request : LTerm_geom.size
The size wanted by the widget.
method resources : LTerm_resources.t
The set of resources used by the widget.
method set_resources : LTerm_resources.t -> unit
Sets the resources of the widget and of all its children.
Sets the resource class of the widget. This can be used to set an alternative style for the widget.