2Gis Map SDK for Compose/ru.dgis.sdk.compose.map.controls.modern.zoom/DefaultZoomViewModel

DefaultZoomViewModel

class DefaultZoomViewModel(map: Map) : ZoomViewModel

Default implementation of ZoomViewModel that integrates with ZoomControlModel.

Listens to the native zoom control model and exposes zoom-in/zoom-out enabled states as kotlinx.coroutines.flow.StateFlow. Delegates press/release actions to the model.

Parameters

map

The map instance to control zoom for.

Constructors

DefaultZoomViewModel

constructor(map: Map)

Properties

isZoomInEnabled

open override val isZoomInEnabled: StateFlow<Boolean>

Observable state indicating whether zooming in is currently available. When false, the zoom-in button should appear disabled.

isZoomOutEnabled

open override val isZoomOutEnabled: StateFlow<Boolean>

Observable state indicating whether zooming out is currently available. When false, the zoom-out button should appear disabled.

Functions

onCleared

open override fun onCleared()

Releases resources when the view model is no longer needed.

onZoomInPressed

open override fun onZoomInPressed()

Called when the user presses the zoom-in button.

onZoomInReleased

open override fun onZoomInReleased()

Called when the user releases the zoom-in button.

onZoomOutPressed

open override fun onZoomOutPressed()

Called when the user presses the zoom-out button.

onZoomOutReleased

open override fun onZoomOutReleased()

Called when the user releases the zoom-out button.