30 lines
1.1 KiB
JavaScript
30 lines
1.1 KiB
JavaScript
var fs = require('fs');
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var os = require('os');
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var path = require('path');
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var phantom = require('phantomjs');
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var childProcess = require('child_process');
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var phantomScript = path.join(__dirname, 'phantomjs-svg2png.js');
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// If available, use the font here.
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var fontPath = './Verbana.ttf';
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try {
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// This happens at startup. Needn't be async.
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var fontBase64 = fs.readFileSync(fontPath, 'base64');
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} catch(e) {}
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module.exports = function (svg, format, out, cb) {
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var tmpFile = path.join(os.tmpdir(),
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"svg2img-" + (Math.random()*2147483648|0) + "." + format);
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// Conversion to PNG happens in the phantom script.
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childProcess.execFile(phantom.path, [phantomScript, svg, tmpFile],
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function(err, stdout, stderr) {
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if (stdout) { console.log(stdout); }
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if (stderr) { console.log(stderr); }
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if (err != null) { console.error(err.stack); if (cb) { cb(err); } return; }
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var inStream = fs.createReadStream(tmpFile);
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inStream.pipe(out);
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// Remove the temporary file after use.
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inStream.on('end', function() { fs.unlink(tmpFile, cb); });
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});
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};
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