import * as PIXI from 'pixi.js';
import { GameStageLayer, GameStage } from "./GameStage";
import { Game } from "../Bootstrap/Game";
/**
 * Scale mode as used by [[ScalingStage]]
 */
export declare enum ScalingStageUpscaleMode {
    /**
     * Stage is not scaled so the game always displays in the native size.
     */
    NoScale = 0,
    /**
     * Scale up to fill as much of the available space as possible, while keeping the scale an integer value,
     * to ensure every pixel is always the same size.
     */
    SnapScale = 1,
    /**
     * Scale up to fill as much of the available space as possible, which may result in uneven pixels.
     */
    FullScale = 2
}
/**
 * This stage will render the game to a render texture in its original dimensions as provided in the constructor,
 * then depending on selected [[ScalingStageUpscaleMode]] will scale the contents proportionally. The stage will then
 * be centered in the available spcae that is left.
 */
export declare class ScalingStage implements GameStage {
    private _upscaleMode;
    private _lastWindowWidth;
    private _lastWindowHeight;
    private readonly _game;
    private readonly _layers;
    private readonly _renderedGame;
    private readonly _mask;
    private readonly _baseWidth;
    private readonly _baseHeight;
    private readonly _renderTexture;
    get upscaleMode(): ScalingStageUpscaleMode;
    set upscaleMode(mode: ScalingStageUpscaleMode);
    constructor(game: Game, baseWidth: number, baseHeight: number, scaleMode?: number, upscaleMode?: ScalingStageUpscaleMode);
    addChild(child: PIXI.DisplayObject, layer: GameStageLayer): void;
    removeChild(child: PIXI.DisplayObject): void;
    update(): void;
    setWindowDimensions(windowWidth: number, windowHeight: number): void;
    private getDimensionsForScaleMode;
}