mirror of https://github.com/espruino/BangleApps
50 lines
1.5 KiB
JavaScript
50 lines
1.5 KiB
JavaScript
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#!/usr/bin/node
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// Used for apps/fontsall/etc
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// Needs 'npm install pngjs'
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var FONTFILE = "unifont-15.1.05.png";
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console.log("Espruino Font Creator");
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console.log("---------------------");
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console.log("");
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let fontconverter = require("../webtools/fontconverter.js");
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let charCodeRanges = fontconverter.getRanges();
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console.log("Available char code ranges\n - "+Object.keys(charCodeRanges).join("\n - "));
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if (process.argv.length!=4) {
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console.log(process.argv,"");
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console.log("USAGE:");
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console.log(" font_creator 'CharCodeRange' outputfile.pbf");
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process.exit(1);
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}
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let charCodeRange = process.argv[2];
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let outputFile = process.argv[3];
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if (!(charCodeRange in charCodeRanges)) {
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console.log("Char code range "+charCodeRange+" not found");
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process.exit(1);
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}
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if (!require("fs").existsSync(FONTFILE)) {
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console.log("Unifont file "+FONTFILE+" not found!")
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console.log("Download from https://unifoundry.com/unifont/index.html and convert to png")
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process.exit(1);
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}
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// load a unifont PNG file
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let font = fontconverter.load({
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fn : FONTFILE,
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mapWidth : 256, mapHeight : 256,
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mapOffsetX : 32, mapOffsetY : 64,
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height : 16, // actual used height of font map
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range : charCodeRanges[charCodeRange].range
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});
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font.removeUnifontPlaceholders();
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// quick hack as space looks too long
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font.glyphs[32].width -= 3;
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font.glyphs[32].xEnd -= 3;
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font.glyphs[32].advance -= 3;
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//font.debugChars();
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require("fs").writeFileSync(outputFile, Buffer.from(font.getPBF()));
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