/**
 * 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 { Nullable } from '@univerjs/core';
import type { BaseObject, IRenderModule } from '@univerjs/engine-render';
import type { IPageElement } from '@univerjs/slides';
import type { PageID } from '../type';
import { RxDisposable } from '@univerjs/core';
import { IRenderManagerService } from '@univerjs/engine-render';
export declare class CanvasView extends RxDisposable implements IRenderModule {
    private readonly _renderManagerService;
    constructor(_renderManagerService: IRenderManagerService);
    private _getSlideRenderControllerFromRenderUnit;
    createThumbs(unitId: string): void;
    activePage(pageId: string, unitId: string): void;
    getRenderUnitByPageId(pageId: PageID, unitId: string): {
        scene: import("@univerjs/engine-render").Scene;
        engine: import("@univerjs/engine-render").Engine;
        unit: import("@univerjs/core").UnitModel<object, import("@univerjs/protocol").UniverType>;
    };
    createObjectToPage(element: IPageElement, pageID: PageID, unitId: string): Nullable<BaseObject>;
    setObjectActiveByPage(obj: BaseObject, pageID: PageID, unitId: string): void;
    removeObjectById(id: string, pageID: PageID, unitId: string): void;
    /**
     * append blank page
     */
    appendPage(unitId: string): void;
}