/**
 * Class that can measure text for a given font very efficiently (about ~1000 times faster than canvas measuretext).
 * It uses a precomputed table of character widths for a given font and size.
 *
 * Also supports utility functions like ellipsis.
 */
export declare class FastTextMeasure {
    private font;
    table: Float32Array<ArrayBuffer>;
    meanWidth: number;
    constructor(font: string);
    computeTable(): void;
    fastMeasureText(text: string): number;
    /**
     * @deprecated Use fastTextEllipsis instead.
     */
    textEllipsis(text: string, maxWidth: number): string;
    fastTextEllipsis(text: string, maxWidth: number): {
        truncatedLabel: string;
        truncatedWidth: number;
    };
}
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