/**
 * Copyright 2023-present DreamNum Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import type { IDisposable, Nullable } from '@univerjs/core';
import type { IImageShapeClipService, IShapeClipBounds, UniverRenderingContext } from '@univerjs/engine-render';
import { Disposable } from '@univerjs/core';
export declare const IMAGE_CLIP_SHAPE_PICKER_COMPONENT = "sheet.image-clip.shape.picker.component";
/**
 * Delegate function type for building a shape clip path.
 * The function should call ctx.beginPath(), build the shape outline path, and call ctx.clip().
 * Coordinate system: (0,0) is at the top-left of the shape area.
 * @returns The actual bounding rect of the clip region, or false if no clip was built
 */
export type ImageShapeClipDelegate = (ctx: UniverRenderingContext, prstGeom: string, width: number, height: number, adjustValues?: Nullable<Record<string, number>>) => IShapeClipBounds | false;
/**
 * Bridge service that enables shape-based image clipping.
 * This service lives in the open-source drawing-ui package and delegates
 * to a registered clip implementation (provided by pro engine-shape package).
 *
 * When no delegate is registered, applyShapeClip returns false and images render normally without shape clipping.
 */
export declare class DrawingImageClipService extends Disposable implements IImageShapeClipService {
    private _clipDelegate;
    private readonly _canUseShapeClip$;
    readonly canUseShapeClip$: import("rxjs").Observable<boolean>;
    constructor();
    setCanUseShapeClip(canUse: boolean): void;
    /**
     * Register a clip delegate that knows how to build shape clip paths.
     * Typically called by the pro-side plugin with a ShapeModel-based implementation.
     * @returns IDisposable to unregister the delegate
     */
    registerClipDelegate(delegate: ImageShapeClipDelegate): IDisposable;
    applyShapeClip(ctx: UniverRenderingContext, prstGeom: string, width: number, height: number, adjustValues?: Nullable<Record<string, number>>): IShapeClipBounds | false;
    dispose(): void;
}