site/node_modules/mathjax-full/ts/output/svg/FontData.ts

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/*************************************************************
*
* Copyright (c) 2017-2022 The MathJax Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @fileoverview Implements the SVGFontData class for font data in SVG output.
*
* @author dpvc@mathjax.org (Davide Cervone)
*/
import {CharMap, CharOptions, CharData, VariantData, DelimiterData, FontData} from '../common/FontData.js';
export * from '../common/FontData.js';
export type CharStringMap = {[name: number]: string};
/**
* Add the extra data needed for CharOptions in SVG
*/
export interface SVGCharOptions extends CharOptions {
c?: string; // the character value (overrides default value)
p?: string; // svg path
}
/**
* Shorthands for SVG char maps and char data
*/
export type SVGCharMap = CharMap<SVGCharOptions>;
export type SVGCharData = CharData<SVGCharOptions>;
/**
* The extra data needed for a Variant in SVG output
*/
export interface SVGVariantData extends VariantData<SVGCharOptions> {
cacheID: string;
}
/**
* the extra data neede for a Delimiter in SVG output
*/
export interface SVGDelimiterData extends DelimiterData {
}
/****************************************************************************/
/**
* The SVG FontData class
*/
export class SVGFontData extends FontData<SVGCharOptions, SVGVariantData, SVGDelimiterData> {
/**
* @override
*/
public static OPTIONS = {
...FontData.OPTIONS,
dynamicPrefix: './output/svg/fonts'
};
/**
* @override
*/
public static JAX = 'SVG';
/**
* @override
*/
public static charOptions(font: SVGCharMap, n: number) {
return super.charOptions(font, n) as SVGCharOptions;
}
}
export type SVGFontDataClass = typeof SVGFontData;
/****************************************************************************/
/**
* @param {CharMap} font The font to augment
* @param {CharStringMap} paths The path data to use for each character
* @param {CharStringMap} content The string to use for remapped characters
* @return {SVGCharMap} The augmented font
*/
export function AddPaths(font: SVGCharMap, paths: CharStringMap, content: CharStringMap): SVGCharMap {
for (const c of Object.keys(paths)) {
const n = parseInt(c);
SVGFontData.charOptions(font, n).p = paths[n];
}
for (const c of Object.keys(content)) {
const n = parseInt(c);
SVGFontData.charOptions(font, n).c = content[n];
}
return font;
}