ChartModelProducer

Generates ChartEntryModels and handles difference animations.

Functions

abstract fun getModel(): Model?

Returns the ChartEntryModel or, if no ChartEntryModel is available, null.

Checks if an update listener with the given key is registered.

abstract fun ~~registerForUpdates~~(key: Any, cancelAnimation: () -> Unit, startAnimation: (transformModel: suspend (chartKey: Any, fraction: Float) -> Unit) -> Unit, getOldModel: () -> Model?, modelTransformerProvider: Chart.ModelTransformerProvider?, extraStore: MutableExtraStore, updateChartValues: (Model?) -> ChartValuesProvider, onModelCreated: (Model?) -> Unit)

Registers an update listener associated with a key. cancelAnimation and startAnimation are called after a data update is requested, with cancelAnimation being called before the update starts being processed (at which point transformModel should stop being used), and startAnimation being called once the update has been processed (at which point it’s safe to use transformModel). updateChartValues updates the chart’s ChartValues and returns its ChartValuesProvider. onModelCreated is called when a new Model has been generated.

open fun registerForUpdates(key: Any, cancelAnimation: () -> Unit, startAnimation: (transformModel: suspend (chartKey: Any, fraction: Float) -> Unit) -> Unit, getOldModel: () -> Model?, modelTransformerProvider: Chart.ModelTransformerProvider?, extraStore: MutableExtraStore, updateChartValues: (Model?) -> ChartValuesProvider, onModelCreated: (Model?, ChartValuesProvider) -> Unit)

Registers an update listener associated with a key. cancelAnimation and startAnimation are called after a data update is requested, with cancelAnimation being called before the update starts being processed, and startAnimation being called once the update has been processed. updateChartValues updates the chart’s ChartValues and returns its ChartValuesProvider. onModelCreated is called when a new Model has been generated.

Returns the ChartEntryModel or, if no ChartEntryModel is available, throws an exception.

abstract suspend fun ~~transformModel~~(key: Any, fraction: Float)

Creates an intermediate ChartEntryModel for difference animations. fraction is the balance between the initial and target ChartEntryModels.

Unregisters the update listener associated with the given key.