@sheetxl/models/types/font/FontUtils.d.ts

Models - A Headless javascript spreadsheet library.

import { VerticalTextAlignment } from "../text/types";
/**
 * Advanced text metrics.
 */
export interface ExtendedTextMetrics extends Partial<TextMetrics>, Partial<FontMetrics> {
    /**
     * This is the lineHeight and includes the lineGap
     */
    readonly lineHeight: number;
}
export interface FontMetrics {
    readonly underlinePosition?: number;
    readonly underlineThickness?: number;
    readonly strikePosition?: number;
    readonly strikeThickness?: number;
    readonly italicAngle?: number;
    readonly lineHeight: number;
    readonly baseline: number;
    readonly lineGap: number;
}
export declare const MIN_FONT_SIZE = 1;
export declare const MAX_FONT_SIZE = 409;
export declare const MAX_FONT_PRECISION = 1;
export declare const DEFAULT_LINE_HEIGHT_MULTIPLIER = 1.2;
export declare const FONT_SIZES_EXCEL: number[];
export declare const findNextFontSize: (size: number, increase?: boolean, steps?: number[]) => number;
export declare const defaultHorizontalPadding: (fontSize: number) => number;
export declare const defaultVerticalPadding: (_fontSize: number) => number;
export interface TextMetricOptions {
    isBold?: boolean;
    isItalic?: boolean;
    letterSpacing?: number;
}
export interface TextMeasurer {
    (text: string, size: number, family: string, options?: TextMetricOptions): ExtendedTextMetrics;
}
export declare const setDefaultTextMeasurer: (measurer: TextMeasurer) => void;
export declare const getDefaultTextMeasurer: () => TextMeasurer;
export declare const fontScale: () => number;
/**
 * @remarks
 *
 * This information is encoded in the font file but not available in the browser in an easy to get way.
 *
 * @param fontFamily
 * @returns 'the number to scale the font size by to get the super/subscript font size'
 */
export declare const superSubScale: (_fontFamily: string) => number;
export declare const superSubShift: (fontFamily: string, fontSize: number, verticalAlign: VerticalTextAlignment) => number;
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