/**
 * Eraser Module — erase annotations
 * Uses object-tap-to-delete approach for reliability across platforms
 */
import { fabric } from 'fabric';
export declare class EraserModule {
    private canvas;
    private isActive;
    private eraserWidth;
    constructor(canvas: fabric.Canvas);
    /**
    * Activate eraser mode — tapping on selectable annotations removes them.
    * Freehand draw paths stay non-selectable and are erased by the
    * editor-level brush hit-test path.
     */
    activate(): void;
    /**
     * Deactivate eraser mode
     */
    deactivate(): void;
    /**
     * Set eraser brush width (visual indicator on hover)
     */
    setEraserWidth(width: number): void;
    getEraserWidth(): number;
    getIsActive(): boolean;
    private handleEraserClick;
}