import { ZAbstractEdge } from "./z_abstract_edge";
import * as GOptions from "./z_options";
export declare class ZAbstractTextEdge extends ZAbstractEdge {
    private static updateTextAttributes;
    protected _svgTextPath: SVGTextPathElement;
    private _svgText;
    private _textObserver;
    protected _isSpecialTextBox: boolean;
    protected createSurface(svgbox: SVGElement, option?: GOptions.ZObjectAttributes): void;
    constructor(svgbox: SVGElement | string);
    get svgText(): SVGTextElement;
    get svgTextPath(): SVGTextPathElement;
    get childrenStableFlag(): boolean;
    initializeSetBasicOption(source: SVGElement): void;
    get readableTextFlag(): boolean;
    set readableTextFlag(value: boolean);
    private get startOffset();
    private set startOffset(value);
    protected textObserverFunc: MutationCallback;
    get isShown(): boolean;
    private removeTextLengthAttributeOrGetUpdateFlag;
    private setRegularIntervalOrGetUpdateFlag;
    get isAppropriatelyReverseMode(): boolean;
    set isAppropriatelyReverseMode(v: boolean);
    get side(): string | null;
    set side(v: string | null);
    private revTextForApp;
    private static getRevString;
    get svgElements(): SVGElement[];
    hasDescendant(obj: SVGElement): boolean;
    isDrawnText(): boolean;
    /**
     * 再描画します。
     */
    update(): void;
    getUpdateFlag(): boolean;
    private tryUpdateTextPathWithUpdateFlag;
    protected tryUpdateRotateAttributeWithUpdateFlag(withUpdate: boolean): boolean;
    protected tryUpdateDYWithUpdateFlag(withUpdate: boolean): boolean;
    protected tryUpdatePathOffsetWithUpdateFlag(withUpdate: boolean): boolean;
    updateSurfaceWithoutSVGText(): boolean;
}