import { type ControlRenderingStyleOverride, type InteractiveFabricObject, type TCornerPoint, Point, type Control } from 'fabric';
/**
 * Custom shouldActivate for L-shaped corner controls.
 * Checks if pointer is within either arm of the L.
 */
export declare function shouldActivateCorner(this: Control, controlKey: string, fabricObject: InteractiveFabricObject, pointer: Point, corner: TCornerPoint): boolean;
/**
 * Render a rounded segment control (line with round caps).
 * Useful for edge resize handles.
 * @param {CanvasRenderingContext2D} ctx context to render on
 * @param {Number} left x coordinate where the control center should be
 * @param {Number} top y coordinate where the control center should be
 * @param {Object} styleOverride override for FabricObject controls style
 * @param {FabricObject} fabricObject the fabric object for which we are rendering controls
 */
export declare function renderRoundedSegmentControl(this: Control, ctx: CanvasRenderingContext2D, left: number, top: number, styleOverride: ControlRenderingStyleOverride, fabricObject: InteractiveFabricObject): void;
/**
 * Render an L-shaped corner control using two rounded segments.
 * Matches the style of renderRoundedSegmentControl.
 */
export declare function renderCornerControl(this: Control, ctx: CanvasRenderingContext2D, left: number, top: number, styleOverride: ControlRenderingStyleOverride, fabricObject: InteractiveFabricObject): void;
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