import * as PIXI from 'pixi.js';
export declare const DEFAULT_SPRITE_NAME = "image";
/**
 * A structure that defines all settings of an image:
 * position, scale, size, and size of the stage
 */
export interface ImageSettings {
    stage: {
        size: {
            width: number;
            height: number;
        };
        scale: {
            x: number;
            y: number;
        };
    };
    sprite: {
        rotation: number;
        size: {
            width: number;
            height: number;
        };
        scale: {
            x: number;
            y: number;
        };
        position: {
            x: number;
            y: number;
        };
        anchor: {
            x: number;
            y: number;
        };
    };
}
/**
 * Update the image content using a Blob datasource
 *
 * @param application the PIXI.Application context
 * @param param.spriteName the name of the sprite in the context
 * @param param.imgDatasource the Blob data to load as image
 * @param param.settings optional image settings to restore position/scale/rotation
 */
export declare function updateImageFromBlob(application: PIXI.Application, { spriteName, imgDatasource, settings, }: {
    spriteName: string;
    imgDatasource: Blob;
    settings?: ImageSettings;
}): Promise<PIXI.Sprite | null>;
/**
 * Update the image content for the sprite in the PIXI.Application context
 *
 * @param application the PIXI.Application context
 * @param param.spriteName the name of the sprite in the context
 * @param param.imgDatasource the image source: a URL string, HTMLImageElement, or PIXI.Sprite
 * @param param.settings optional image settings to restore position/scale/rotation
 */
export declare function updateImage(application: PIXI.Application, { spriteName, imgDatasource, settings, }: {
    spriteName: string;
    imgDatasource: string | HTMLImageElement | PIXI.Sprite;
    settings?: ImageSettings;
}): Promise<void>;
/**
 * This function resize the sprite according to the container width
 *
 * @param application The PIXI.Application context
 * @param sprite The sprite object representing the image to resize
 */
export declare function autoResize(application: PIXI.Application, sprite: PIXI.Sprite): void;
export declare function constraintSize(size: {
    width: number;
    height: number;
}, constraints: {
    width: {
        max: number;
        min: number;
    };
    height: {
        max: number;
        min: number;
    };
}): {
    width: number;
    height: number;
};
/**
 * This function transform the stage into a blob
 *
 * @param application the PIXI.Application context
 * @returns A promise of the generated blob
 */
export declare function saveAsBlob(application: PIXI.Application): Promise<Blob>;
/**
 * This function transform the stage into a data URL encoded image
 *
 * @param application the PIXI.Application context
 * @returns the generated image as Data URL or undefined if failed
 */
export declare function saveAsDataURL(application: PIXI.Application): string | undefined;
/**
 * Calculates the scale ratio between the CSS display size and the actual canvas size.
 * @param application - The PIXI.Application instance.
 * @returns The scale ratio (CSS width / canvas width).
 */
export declare function getApplicationScale(application: PIXI.Application): number;
export declare function toBlob(application: PIXI.Application): Promise<Blob>;
export declare function createImageSettings({ application, sprite, }: {
    sprite: PIXI.Sprite;
    application: PIXI.Application;
}): {
    sprite: {
        rotation: number;
        size: {
            width: number;
            height: number;
        };
        position: {
            x: number;
            y: number;
        };
        scale: {
            x: number;
            y: number;
        };
        anchor: {
            x: number;
            y: number;
        };
    };
    stage: {
        size: {
            width: number;
            height: number;
        };
        scale: {
            x: number;
            y: number;
        };
    };
};
export declare function trimStage(application: PIXI.Application, sprite: PIXI.Sprite): void;
export declare function resizeStage({ application, sprite, newHeight, newWidth, }: {
    newHeight: number;
    newWidth: number;
    application: PIXI.Application;
    sprite: PIXI.Sprite;
}): void;