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December 24, 2016 03:20
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jsbin :: canvas-text-opentypejs-shim
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" | |
| content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
| <title>canvas-text-opentypejs-shim</title> | |
| </head> | |
| <body> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/opentype.js/0.6.6/opentype.min.js"></script> | |
| <script src="https://rawgit.com/shyiko/canvas-text-opentypejs-shim/master/canvas-text-opentypejs-shim.js"></script> | |
| <script> | |
| (function () { | |
| var useOpenTypeJsForText = window['canvas-text-opentypejs-shim'] | |
| /** | |
| * @param fontFamily e.g. "'Open Sans', sans-serif" | |
| * @return e.g. ["Open Sans", "sans-serif"] | |
| */ | |
| function splitFontFamily (fontFamily) { | |
| return fontFamily.split(',') | |
| .map((f) => f.trim().replace(/^['"]/, '').replace(/['"]$/, '')) | |
| .filter(Boolean) | |
| } | |
| opentype.load( | |
| 'https://rawgit.com/google/fonts/master/apache/opensans/OpenSans-Regular.ttf', | |
| function (err, font) { | |
| if (err) { | |
| document.body.appendChild(document.createTextNode(err.stack)) | |
| return | |
| } | |
| var canvas = document.createElement('canvas') | |
| canvas.width = canvas.height = 200 | |
| document.body.appendChild(canvas) | |
| var ctx = canvas.getContext('2d') | |
| useOpenTypeJsForText(ctx, { | |
| resolveFont: function (o) { | |
| if (splitFontFamily(o.fontFamily)[0] === 'Open Sans') { | |
| return font | |
| } | |
| } | |
| }) | |
| ctx.font = '26px "Open Sans"' | |
| ctx.fillText('Hello World', 0, 26) | |
| }) | |
| })() | |
| </script> | |
| </body> | |
| </html> |
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