import type { Batchable2D, GlBlendMode, GlRenderer } from '../../core';
import type { Texture2D } from '../resources';
import type { CanvasBatchable } from './CanvasContext';
import type { Node } from './Node';
import type { TimelineNodeEvents, TimelineNodeProperties } from './TimelineNode';
import { CanvasContext } from './CanvasContext';
import { TimelineNode } from './TimelineNode';
export interface CanvasItemProperties extends TimelineNodeProperties {
    blendMode: GlBlendMode;
}
export interface CanvasItemEvents extends TimelineNodeEvents {
    draw: [];
}
export interface CanvasItem {
    on: <K extends keyof CanvasItemEvents & string>(event: K, listener: (...args: CanvasItemEvents[K]) => void) => this;
    once: <K extends keyof CanvasItemEvents & string>(event: K, listener: (...args: CanvasItemEvents[K]) => void) => this;
    off: <K extends keyof CanvasItemEvents & string>(event: K, listener: (...args: CanvasItemEvents[K]) => void) => this;
    emit: <K extends keyof CanvasItemEvents & string>(event: K, ...args: CanvasItemEvents[K]) => this;
}
export declare class CanvasItem extends TimelineNode {
    blendMode: GlBlendMode | undefined;
    visible: boolean;
    opacity: number;
    protected _parentGlobalVisible?: boolean;
    protected _globalVisible?: boolean;
    get globalVisible(): boolean;
    protected _parentGlobalOpacity?: number;
    protected _globalOpacity?: number;
    get globalOpacity(): number;
    context: CanvasContext;
    protected _resetContext: boolean;
    needsDraw: boolean;
    needsLayout: boolean;
    needsPaint: boolean;
    protected _drawBatchables: CanvasBatchable[];
    protected _layoutBatchables: CanvasBatchable[];
    protected _batchables: CanvasBatchable[];
    constructor(properties?: Partial<CanvasItemProperties>, nodes?: Node[]);
    protected _updateProperty(key: string, value: any, oldValue: any): void;
    show(): void;
    hide(): void;
    isVisibleInTree(): boolean;
    updateRenderable(): void;
    requestDraw(): void;
    requestLayout(): void;
    requestPaint(): void;
    protected _updateGlobalVisible(): void;
    protected _updateGlobalOpacity(): void;
    protected _draw(): void;
    protected _transformUvs(batchable: CanvasBatchable): Float32Array | undefined;
    protected _redraw(): CanvasBatchable[];
    protected _relayout(batchables: CanvasBatchable[]): CanvasBatchable[];
    protected _repaint(batchables: CanvasBatchable[]): CanvasBatchable[];
    protected _process(delta: number): void;
    protected _updateBatchables(): void;
    protected _handleViewportTexture(batchable: Batchable2D): Texture2D | undefined;
    protected _render(renderer: GlRenderer): void;
}