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Commit Description:
change logger to be limited by file size
Commit Description:
change logger to be limited by file size
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node_modules/fontkit/src/glyph/SBIXGlyph.js
| 52 lines
| 1.4 KiB
| application/javascript
| JavascriptLexer
|
| r789 | import TTFGlyph from './TTFGlyph'; | |||
| import r from 'restructure'; | ||||
| let SBIXImage = new r.Struct({ | ||||
| originX: r.uint16, | ||||
| originY: r.uint16, | ||||
| type: new r.String(4), | ||||
| data: new r.Buffer(t => t.parent.buflen - t._currentOffset) | ||||
| }); | ||||
| /** | ||||
| * Represents a color (e.g. emoji) glyph in Apple's SBIX format. | ||||
| */ | ||||
| export default class SBIXGlyph extends TTFGlyph { | ||||
| /** | ||||
| * Returns an object representing a glyph image at the given point size. | ||||
| * The object has a data property with a Buffer containing the actual image data, | ||||
| * along with the image type, and origin. | ||||
| * | ||||
| * @param {number} size | ||||
| * @return {object} | ||||
| */ | ||||
| getImageForSize(size) { | ||||
| for (let i = 0; i < this._font.sbix.imageTables.length; i++) { | ||||
| var table = this._font.sbix.imageTables[i]; | ||||
| if (table.ppem >= size) { break; } | ||||
| } | ||||
| let offsets = table.imageOffsets; | ||||
| let start = offsets[this.id]; | ||||
| let end = offsets[this.id + 1]; | ||||
| if (start === end) { | ||||
| return null; | ||||
| } | ||||
| this._font.stream.pos = start; | ||||
| return SBIXImage.decode(this._font.stream, {buflen: end - start}); | ||||
| } | ||||
| render(ctx, size) { | ||||
| let img = this.getImageForSize(size); | ||||
| if (img != null) { | ||||
| let scale = size / this._font.unitsPerEm; | ||||
| ctx.image(img.data, {height: size, x: img.originX, y: (this.bbox.minY - img.originY) * scale}); | ||||
| } | ||||
| if (this._font.sbix.flags.renderOutlines) { | ||||
| super.render(ctx, size); | ||||
| } | ||||
| } | ||||
| } | ||||