The current global hider of these layers
The current global hider of these layers
Get the symbol which is attached to an item prior to its removal. If an item is removed, the current index of the item is set on the item with this symbol.
A symbol to describe the local z index of a layer. The local z index must not equal the layers z index, but is always consistent in comparison to the neighbouring layers. If a layer is moved other then by z index, the collection ensures consistency by setting a new local z index if needed.
Protected_checkProtected_moveProtected_removeProtectedinternal remove function, to remove an item from the collection, does not raise an event.
returns the index of the removed item or -1 if the item has not been found.
Adds a layer to the collection. Can optionally be passed an index at which to insert the layer. The layer locale will be set to the same locale of the layerCollection. This will trigger a forceRedraw of the layer if the layer locale is different and the layer is locale aware.
Optionalindex: numberreturns the layer index or null, if the layers name is not unique
Returns an item at index.
Returns an item identified by the unique constraint key. Returns null, if there is no uniqueness constraint.
the value to test against. does a shallow comparison, if the passed a non-atomic value
Equivalent to Array.prototype.includes
Returns the index of an item or -1 if it is not part of this collection
Lowers an item within the array
Optionalsteps: number = 1an integer number to lower by
the new index of the item
Moves an item to a provided index
the new index of the item
Raises an item within the array
Optionalsteps: number = 1an integer number to lower by
the new index of the item
Removes an item from the collection
StaticfromCreates a LayerCollection from an iterable of layers, such as an Array.
Protected_arrayEvent raised if an item is added. Is passed the added item.
The exclusive manager for this collection. Layers within this collection are automatically added and tracked.
Event raised if an item is relocated within the collection. Is passed the moved item.
Event raised if an item is removed. Is passed the removed item.
Event raised, when a layer of this collection changes its state. Passed the layer.
A collection of layers. Manages rendering order and layer exclusivity. Emits state changes for convenience. Passed to Map for layers available to said map. Layers must have unique names.