import type { AttributeState } from './attributestate.js';
export declare class TextMeasure {
    private textMeasuringTextElement?;
    private measureMethods;
    private static readonly testString;
    private static readonly epsilon;
    getTextOffset(text: string, attributeState: AttributeState): number;
    measureTextWidth(text: string, attributeState: AttributeState): number;
    private getMeasurementTextNode;
    private canvasTextMeasure;
    private svgTextMeasure;
    /**
     * Canvas text measuring is a lot faster than svg measuring. However, it is inaccurate for some fonts. So test each
     * font once and decide if canvas is accurate enough.
     */
    private getMeasureFunction;
    cleanupTextMeasuring(): void;
}
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