Class ResizeHandle

constructor

• new ResizeHandle(
      offset: number[],
      handlers?: { canDrag?: Function },
  ): ResizeHandle

  Parameters

  • offset: number[]

    A two-element array [xFactor, yFactor] which defines the normalized position of this handle relative to the bounding box.

  • Optionalhandlers: { canDrag?: Function } = {}

    An object of optional handler functions.

    • OptionalcanDrag?: Function

      A function determining if this handle can initiate a drag.

  Returns ResizeHandle

active

activateListeners

• activateListeners(): void

  Activate listeners for pointer events, enabling hover and mouse-down behavior on the resize handle.

  Returns void

refresh

• refresh(bounds: Rectangle): void

  Refresh the position and hit area of this handle based on the provided bounding box.

  Parameters

  • bounds: Rectangle

    The bounding box in which this handle operates.

  Returns void

updateDimensions

• updateDimensions(
      current: Rectangle,
      origin: Rectangle,
      destination: { x: number; y: number },
      options?: { aspectRatio?: number | null },
  ): object

  Compute updated dimensions for an object being resized, respecting optional constraints.

  Parameters

  • current: Rectangle

    The current geometric state of the object

  • origin: Rectangle

    The original position and dimensions used for reference

  • destination: { x: number; y: number }

    The mouse (or pointer) destination coordinates.

    • x: number

      The x-coordinate where the pointer was released.

    • y: number

      The y-coordinate where the pointer was released.

  • Optionaloptions: { aspectRatio?: number | null } = {}

    Additional options.

    • OptionalaspectRatio?: number | null

      If provided, a numeric aspect ratio to maintain (width/height).

  Returns object

  An object containing the adjusted {x, y, width, height}.