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Commit Description:
force log out when password change
Commit Description:
force log out when password change
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node_modules/fontkit/src/layout/KernProcessor.js
| 94 lines
| 2.5 KiB
| application/javascript
| JavascriptGenshiLexer
|
| r789 | import {binarySearch} from '../utils'; | |||
| export default class KernProcessor { | ||||
| constructor(font) { | ||||
| this.kern = font.kern; | ||||
| } | ||||
| process(glyphs, positions) { | ||||
| for (let glyphIndex = 0; glyphIndex < glyphs.length - 1; glyphIndex++) { | ||||
| let left = glyphs[glyphIndex].id; | ||||
| let right = glyphs[glyphIndex + 1].id; | ||||
| positions[glyphIndex].xAdvance += this.getKerning(left, right); | ||||
| } | ||||
| } | ||||
| getKerning(left, right) { | ||||
| let res = 0; | ||||
| for (let table of this.kern.tables) { | ||||
| if (table.coverage.crossStream) { | ||||
| continue; | ||||
| } | ||||
| switch (table.version) { | ||||
| case 0: | ||||
| if (!table.coverage.horizontal) { | ||||
| continue; | ||||
| } | ||||
| break; | ||||
| case 1: | ||||
| if (table.coverage.vertical || table.coverage.variation) { | ||||
| continue; | ||||
| } | ||||
| break; | ||||
| default: | ||||
| throw new Error(`Unsupported kerning table version ${table.version}`); | ||||
| } | ||||
| let val = 0; | ||||
| let s = table.subtable; | ||||
| switch (table.format) { | ||||
| case 0: | ||||
| let pairIdx = binarySearch(s.pairs, function (pair) { | ||||
| return (left - pair.left) || (right - pair.right); | ||||
| }); | ||||
| if (pairIdx >= 0) { | ||||
| val = s.pairs[pairIdx].value; | ||||
| } | ||||
| break; | ||||
| case 2: | ||||
| let leftOffset = 0, rightOffset = 0; | ||||
| if (left >= s.leftTable.firstGlyph && left < s.leftTable.firstGlyph + s.leftTable.nGlyphs) { | ||||
| leftOffset = s.leftTable.offsets[left - s.leftTable.firstGlyph]; | ||||
| } else { | ||||
| leftOffset = s.array.off; | ||||
| } | ||||
| if (right >= s.rightTable.firstGlyph && right < s.rightTable.firstGlyph + s.rightTable.nGlyphs) { | ||||
| rightOffset = s.rightTable.offsets[right - s.rightTable.firstGlyph]; | ||||
| } | ||||
| let index = (leftOffset + rightOffset - s.array.off) / 2; | ||||
| val = s.array.values.get(index); | ||||
| break; | ||||
| case 3: | ||||
| if (left >= s.glyphCount || right >= s.glyphCount) { | ||||
| return 0; | ||||
| } | ||||
| val = s.kernValue[s.kernIndex[s.leftClass[left] * s.rightClassCount + s.rightClass[right]]]; | ||||
| break; | ||||
| default: | ||||
| throw new Error(`Unsupported kerning sub-table format ${table.format}`); | ||||
| } | ||||
| // Microsoft supports the override flag, which resets the result | ||||
| // Otherwise, the sum of the results from all subtables is returned | ||||
| if (table.coverage.override) { | ||||
| res = val; | ||||
| } else { | ||||
| res += val; | ||||
| } | ||||
| } | ||||
| return res; | ||||
| } | ||||
| } | ||||