95 lines
2.9 KiB
JavaScript
95 lines
2.9 KiB
JavaScript
const Canvas = require('./lib/canvas')
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const Image = require('./lib/image')
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const CanvasRenderingContext2D = require('./lib/context2d')
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const CanvasPattern = require('./lib/pattern')
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const parseFont = require('./lib/parse-font')
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const packageJson = require('./package.json')
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const bindings = require('./lib/bindings')
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const fs = require('fs')
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const PNGStream = require('./lib/pngstream')
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const PDFStream = require('./lib/pdfstream')
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const JPEGStream = require('./lib/jpegstream')
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const { DOMPoint, DOMMatrix } = require('./lib/DOMMatrix')
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function createCanvas (width, height, type) {
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return new Canvas(width, height, type)
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}
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function createImageData (array, width, height) {
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return new bindings.ImageData(array, width, height)
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}
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function loadImage (src) {
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return new Promise((resolve, reject) => {
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const image = new Image()
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function cleanup () {
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image.onload = null
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image.onerror = null
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}
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image.onload = () => { cleanup(); resolve(image) }
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image.onerror = (err) => { cleanup(); reject(err) }
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image.src = src
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})
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}
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/**
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* Resolve paths for registerFont. Must be called *before* creating a Canvas
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* instance.
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* @param src {string} Path to font file.
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* @param fontFace {{family: string, weight?: string, style?: string}} Object
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* specifying font information. `weight` and `style` default to `"normal"`.
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*/
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function registerFont (src, fontFace) {
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// TODO this doesn't need to be on Canvas; it should just be a static method
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// of `bindings`.
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return Canvas._registerFont(fs.realpathSync(src), fontFace)
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}
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/**
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* Unload all fonts from pango to free up memory
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*/
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function deregisterAllFonts () {
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return Canvas._deregisterAllFonts()
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}
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exports.Canvas = Canvas
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exports.Context2d = CanvasRenderingContext2D // Legacy/compat export
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exports.CanvasRenderingContext2D = CanvasRenderingContext2D
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exports.CanvasGradient = bindings.CanvasGradient
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exports.CanvasPattern = CanvasPattern
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exports.Image = Image
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exports.ImageData = bindings.ImageData
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exports.PNGStream = PNGStream
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exports.PDFStream = PDFStream
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exports.JPEGStream = JPEGStream
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exports.DOMMatrix = DOMMatrix
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exports.DOMPoint = DOMPoint
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exports.registerFont = registerFont
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exports.deregisterAllFonts = deregisterAllFonts
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exports.parseFont = parseFont
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exports.createCanvas = createCanvas
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exports.createImageData = createImageData
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exports.loadImage = loadImage
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exports.backends = bindings.Backends
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/** Library version. */
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exports.version = packageJson.version
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/** Cairo version. */
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exports.cairoVersion = bindings.cairoVersion
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/** jpeglib version. */
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exports.jpegVersion = bindings.jpegVersion
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/** gif_lib version. */
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exports.gifVersion = bindings.gifVersion ? bindings.gifVersion.replace(/[^.\d]/g, '') : undefined
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/** freetype version. */
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exports.freetypeVersion = bindings.freetypeVersion
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/** rsvg version. */
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exports.rsvgVersion = bindings.rsvgVersion
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/** pango version. */
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exports.pangoVersion = bindings.pangoVersion
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