Class CanvasManager

constructor

• new CanvasManager(
      pluginManager: PluginManager,
      container: Container,
  ): CanvasManager

  Constructor of canvas manager

  Parameters

  • pluginManager: PluginManager

    the engine managing the whole library

  • container: Container

    the parent container

  Returns CanvasManager

OptionaldomElement

Readonlyrender

OptionalrenderCanvas

Readonlysize

zoom

destroy

• destroy(): void

  Destroying object actions

  Returns void

getZoomCenter

• getZoomCenter(): ICoordinates

  Gets the zoom center point

  Returns ICoordinates

  The current zoom center.

init

• init(): void

  Initializes the canvas element

  Returns void

initBackground

• initBackground(): void

  Initializes the canvas background

  Returns void

initPlugins

• initPlugins(): void

  Initializes the plugins needed by canvas

  Returns void

loadCanvas

• loadCanvas(canvas: OffscreenCanvas | HTMLCanvasElement): void

  Loads the canvas HTML element

  Parameters

  • canvas: OffscreenCanvas | HTMLCanvasElement

    the canvas source element or OffscreenCanvas

  Returns void

resize

• resize(): boolean

  Calculates the size of the canvas

  Returns boolean

  true if the size changed

setPointerEvents

• setPointerEvents(type: string): void

  Sets the pointer events style on the canvas

  Parameters

  • type: string

    The pointer-events value to apply.

  Returns void

setZoom

• setZoom(zoomLevel: number, center?: ICoordinates): void

  Sets the zoom level and center point

  Parameters

  • zoomLevel: number

    the new zoom level

  • Optionalcenter: ICoordinates

    optional center point for zoom (default is canvas center)

  Returns void

stop

• stop(): void

  Stops the canvas manager

  Returns void

windowResize

• windowResize(): Promise<void>

  The window resize event handler

  Returns Promise<void>