fonteditor-core/src/ttf/table/hhea.js

fonts (ttf, woff, woff2, eot, svg, otf) parse, write, transform, glyph adjust.

/**
 * @file hhea 表
 * @author mengke01(kekee000@gmail.com)
 *
 * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6hhea.html
 */

import table from './table';
import struct from './struct';
export default table.create(
    'hhea',
    [
        ['version', struct.Fixed],
        ['ascent', struct.Int16],
        ['descent', struct.Int16],
        ['lineGap', struct.Int16],
        ['advanceWidthMax', struct.Uint16],
        ['minLeftSideBearing', struct.Int16],
        ['minRightSideBearing', struct.Int16],
        ['xMaxExtent', struct.Int16],
        ['caretSlopeRise', struct.Int16],
        ['caretSlopeRun', struct.Int16],
        ['caretOffset', struct.Int16],
        ['reserved0', struct.Int16],
        ['reserved1', struct.Int16],
        ['reserved2', struct.Int16],
        ['reserved3', struct.Int16],
        ['metricDataFormat', struct.Int16],
        ['numOfLongHorMetrics', struct.Uint16]
    ]
);