export interface CellMetrics {
    /** CSS pixel width. */
    w: number;
    /** CSS pixel height. */
    h: number;
    /** Device pixel width (integer). */
    pw: number;
    /** Device pixel height (integer). */
    ph: number;
}
/**
 * Measure the dimensions of a single monospace cell by rendering 'M'
 * into a hidden span, then snapping to device pixel boundaries.
 */
export declare const CSS_GENERIC: Set<string>;
/** Quote font families for CSS font shorthand (canvas ctx.font). */
export declare function cssFontFamily(family: string): string;
export declare function measureCell(fontFamily: string, fontSize: number, dpr?: number, advanceRatio?: number): CellMetrics;
//# sourceMappingURL=measure.d.ts.map