import { ImageViewerPluginBase, PluginType } from "../ImageViewer/Core/ImageViewerPluginBase";
import { ImageFormatCode } from "../ImageViewer/Models/Types";
export declare function mirrorImage(ctx: CanvasRenderingContext2D, image: HTMLImageElement, x?: number, y?: number, horizontal?: boolean, vertical?: boolean): void;
/**
 * RotationPlugin options.
 **/
export declare type RotationPluginOptions = {
    /**
     * "Rotate image" button position.
     * Set the rotatePosition option to -1 or false if you don't wish to show "Rotate image" button.
     * @default 1
     **/
    rotatePosition: number | false;
    /**
     * "Flip horizontal" button position.
     * Set the flipHorizontalPosition option to -1 or false if you don't wish to show "Flip horizontal" button.
     * @default 2
     **/
    flipHorizontalPosition: number | false;
    /**
     * "Flip vertical" button position.
     * Set the flipVerticalPosition option to -1 or false if you don't wish to show "Flip vertical" button.
     * @default 3
     **/
    flipVerticalPosition: number | false;
};
/**
 * RotationPlugin class.
 * Adds the "Rotate Image" button.
 * @deprecated Deprecated in favor of PageToolsPlugin.
 * @description
 * Available options are:
 * * rotatePosition - position of the "Rotate Image" button.
 * * flipHorizontalPosition - position of the "Flip horizontal" button.
 * * flipVerticalPosition - position of the "Flip vertical" button.
 * @example
 * ```javascript
 * <script src="gcimageviewer.js"></script></head>
 * <script src="plugins/rotation.js"></script>
 * <script>
 *   var viewer = new GcImageViewer("#root");
 *   viewer.addPlugin(new RotationPlugin());
 * </script>
 * ```
 * @param {any} options
**/
export declare class RotationPlugin extends ImageViewerPluginBase {
    /**
     * Unique plugin identifier.
     **/
    readonly id: PluginType;
    /**
     * Plugin options
     **/
    options: RotationPluginOptions;
    private _rotation;
    private _originalNaturalSize;
    /**
     * RotationPlugin constructor.
     * @param options
     */
    constructor(options?: RotationPluginOptions);
    initialize(viewer: any): void;
    dispose(): void;
    /**
    * Specifies the rotation in degrees.
    **/
    getRotation(): number;
    rotate(val: number): Promise<boolean>;
    /**
     * Specifies the rotation in degrees.
     **/
    setRotation(val: number): Promise<boolean>;
    /**
     * Checks if the image format specified by the imageFormat parameter is supported.
     * @param imageFormat
     **/
    isImageFormatSupported(imageFormat: ImageFormatCode | string): boolean;
    /**
    * Flip image.
    **/
    flip(horizontal?: boolean, vertical?: boolean): Promise<boolean>;
    /**
    * Flip image horizontally.
    **/
    flipHorizontal(): Promise<boolean>;
    /**
    * Flip image vertically.
    **/
    flipVertical(): Promise<boolean>;
    private _removeRotateButtonFromLayout;
    private _onBeforeOpen;
    /**
     * Rotate image data action.
     **/
    private _rotateImageData;
    private _imageSizeAfterRotation;
    private _ensureOptions;
}