import type { Canvas, Circle, Polygon, Polyline, RenderingPlugin, RenderingPluginContext } from '@antv/g-lite';
import EventEmitter from 'eventemitter3';
import { DrawerTool } from './constants/enum';
import type { BaseDrawer, DrawerState } from './interface/drawer';
import type { AnnotationPluginOptions } from './tokens';
/**
 * Provides drawing capability like free drawing mode in fabric.js.
 * @see http://fabricjs.com/freedrawing
 */
export declare class AnnotationPlugin implements RenderingPlugin {
    annotationPluginOptions: AnnotationPluginOptions;
    static tag: string;
    constructor(annotationPluginOptions: AnnotationPluginOptions);
    private hotkeyActive;
    drawer: BaseDrawer;
    emmiter: EventEmitter<string | symbol, any>;
    canvas: Canvas;
    /**
     * draw a dashed rect when brushing
     */
    brushRect: Polygon;
    /**
     * draw a static point
     */
    pointCircle: Circle;
    /**
     * control points on polyline
     */
    polylineControlPoints: Circle[];
    /**
     * the whole polyline except for last segment
     */
    savedPolyline: Polyline;
    /**
     * the last segment of polyline
     */
    polylineLastSegment: Polyline;
    private hideDrawer;
    /**
     * 绘制标注
     * @param anno
     */
    renderDrawer(anno: DrawerState): void;
    /**
     * 激活标注
     * @param id
     */
    setActiveAnnotation: (id: string) => void;
    /**
     * 使用绘制工具
     * @param tool
     * @param options
     * @returns
     */
    setDrawer(tool: DrawerTool, options: any): BaseDrawer;
    /**
     * 清除绘制工具
     */
    clearDrawer(): void;
    apply(context: RenderingPluginContext): void;
}
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