glok-core/uk.co.nickthecoder.glok.control/TreeItemBase

TreeItemBase

abstract class TreeItemBase

Common code shared by TreeItem and MixedTreeItem

Inheritors

Constructors

constructor()

Properties

var available: Boolean

False if any of the ancestors are not expanded. The root item is always available (even when MixedTreeView.showRoot == false).

var expanded: Boolean

expandedProperty

val expandedProperty: BooleanProperty

var leaf: Boolean

val leafProperty: BooleanProperty

val levelProperty: ReadOnlyIntProperty

The root is level 0. Its children are level 1 etc.

var onContracted: ActionEventHandler?

onContractedProperty

val onContractedProperty: OptionalActionEventHandlerProperty

An event handler which is called when this item is expanded, but before the tree is actually expanded. This gives you the opportunity to adjust children. i.e. children can be lazily evaluated, just in time.

var onExpanding: ActionEventHandler?

onExpandingProperty

val onExpandingProperty: OptionalActionEventHandlerProperty

An event handler which is called when this item is expanded, but before the tree is actually expanded. This gives you the opportunity to adjust children. i.e. children can be lazily evaluated, just in time.

Functions

fun onContracted(handlerCombination: HandlerCombination = HandlerCombination.AFTER, block: (event: ActionEvent) -> Unit)

A convenient way to set onContractedProperty using a lambda.

fun onExpanding(handlerCombination: HandlerCombination = HandlerCombination.AFTER, block: (event: ActionEvent) -> Unit)

A convenient way to set onExpandingProperty using a lambda.