import { BaseShape } from '../shapes/base-shape';
export declare class CanvasBase {
    static BASE_Z_INDEX: number;
    private needsUpdate;
    private zoomVal;
    readonly canvas: HTMLCanvasElement;
    protected context2d: CanvasRenderingContext2D;
    protected container?: HTMLElement;
    readonly shapes: Map<string, BaseShape>;
    get zoom(): number;
    set zoom(val: number);
    get isActive(): boolean;
    constructor();
    private setCanvasStyle;
    requestUpdate(): void;
    update(): void;
    render(): void;
    private clearCtx;
    clear(): void;
    add(shape: BaseShape): void;
    remove(shape: BaseShape): void;
    mount(container: HTMLElement): void;
    resize(width: number, height: number): void;
    activate(): void;
    deactivate(): void;
    show(): void;
    hide(): void;
}
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