import type { ShadowContainer } from '../widget/shadow.js';
import type { Annotation } from '../types.js';
import type { ScrollOffset } from '../screenshot/geometry.js';
export declare class DrawLayer {
    private svg;
    private currentPath;
    private currentPoints;
    private currentAnchor;
    private isDrawing;
    private committed;
    private redoStack;
    constructor(shadow: ShadowContainer);
    startDraw(x: number, y: number): void;
    continueDraw(x: number, y: number): void;
    /**
     * How far the pointer has wandered from where it went down, in pixels.
     *
     * This is what separates a tap from a stroke. Counting points cannot: a
     * mouse click reports no movement at all, while a finger reports a burst of
     * sub-pixel jitter, so any point-based threshold reads every tap on a phone
     * as a drawing.
     */
    getCurrentSpan(): number;
    commitStroke(): boolean;
    cancelCurrentDraw(): void;
    undo(): boolean;
    redo(): boolean;
    canUndo(): boolean;
    canRedo(): boolean;
    hasStrokes(): boolean;
    getAnnotation(): Annotation | null;
    /**
     * How far the drawing's frame has drifted from the live viewport, so a caller
     * can map a point in the drawing back onto the page as it stands now — which
     * is what hit-testing the drawing's target needs.
     */
    viewportDrift(): ScrollOffset;
    clearAll(): void;
    isCurrentlyDrawing(): boolean;
    destroy(): void;
    private createPath;
}
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