227 lines
8.3 KiB
JavaScript
227 lines
8.3 KiB
JavaScript
var fs = require('fs');
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var path = require('path');
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var TTFWriter = require('node-sfnt').TTFWriter;
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var argv = require('yargs').argv;
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var buildGlyphs = require('./buildglyphs.js');
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var parameters = require('./parameters');
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var toml = require('toml');
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var Glyph = require('./support/glyph');
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function hasv(obj){
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if(!obj) return false;
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for(var k in obj) if(obj[k]) return true;
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return false;
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}
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// Font building
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var font = function(){
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var parametersData = toml.parse(fs.readFileSync(path.join(path.dirname(require.main.filename), 'parameters.toml'), 'utf-8'));
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var emptyFont = toml.parse(fs.readFileSync(path.join(path.dirname(require.main.filename), 'emptyfont.toml'), 'utf-8'));
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var para = parameters.build(parametersData, argv._);
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var fontUniqueName = para.family + ' ' + para.style + ' ' + para.version + ' (' + para.codename + ')'
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console.log(' Start build font ' + fontUniqueName);
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var font = buildGlyphs.build.call(emptyFont, para);
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console.log(' ' + fontUniqueName + " Successfully built.");
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font.features.sscompose = para.sscompose
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return font;
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}();
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if(argv.charmap) (function(){
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console.log(' Writing character map -> ' + argv.charmap);
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fs.writeFileSync(argv.charmap, JSON.stringify(font.glyf.map(function(glyph){
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return [
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glyph.name,
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glyph.unicode,
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glyph.advanceWidth === 0 ? hasv(glyph.anchors) ? 1 : (glyph.contours && glyph.contours.length) ? 2 : 0 : 0
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]
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})), 'utf8')
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})();
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if(argv.feature) (function(){
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console.log(' Writing feature file -> ' + argv.feature);
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var featurefile = '\n\n';
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// markGlyphs
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for(var feature in font.features.cv) {
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var base = [], replace = [];
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for(var key in font.features.cv[feature]) {
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base.push(key);
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replace.push(font.features.cv[feature][key]);
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};
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var lookupName = feature + 'Auto';
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featurefile += 'lookup ' + lookupName + ' { sub [' + base.join(' ') + '] by [' + replace.join(' ') + '];} ' + lookupName + ';\n\n';
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featurefile += 'feature ' + feature + ' { script latn; lookup ' + lookupName + '; script grek; lookup ' + lookupName + '; script cyrl; lookup ' + lookupName + '; script dflt; lookup ' + lookupName + '; } ' + feature + ';\n\n';
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}
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for(var feature in font.features.sscompose) {
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var stmt = font.features.sscompose[feature].map(function(lookup){ return 'lookup ' + lookup + 'Auto'}).join(';')
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featurefile += 'feature ' + feature + ' { script latn; ' + stmt + '; script grek; ' + stmt + '; script cyrl; ' + stmt + '; script dflt; ' + stmt + '; } ' + feature + ';\n\n';
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}
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for(var key in font.features.markGlyphs){
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featurefile += '@MG_' + key + '= [' + font.features.markGlyphs[key].join(' ') + '];\n'
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}
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// mark
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var mark = font.features.mark;
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for(var id in mark) {
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var lookup = mark[id];
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var lookupName = 'markAuto_' + id;
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featurefile += 'lookup ' + lookupName + ' {' + lookup.marks.join(';\n') + ';\n'
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+ lookup.bases.join(';\n') + ';} ' + lookupName + ';'
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}
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// mkmk
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var mkmk = font.features.mkmk;
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featurefile += 'lookup mkmkAuto {' + mkmk.marks.join(';\n') + ';\n'
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+ mkmk.bases.join(';\n') + ';} mkmkAuto;'
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// gdef
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var gdef = font.features.gdef;
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featurefile += '@GDEF_Simple = [' + gdef.simple.join(' \n') + '];\n'
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+ '@GDEF_Ligature =[' + gdef.ligature.join(' \n') + '];\n'
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+ '@GDEF_Mark = [' + gdef.mark.join(' \n') + '];\n'
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+ 'table GDEF { GlyphClassDef @GDEF_Simple, @GDEF_Ligature, @GDEF_Mark, ;} GDEF;'
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fs.writeFileSync(argv.feature, featurefile, 'utf8');
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})();
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/*
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// Currently unused
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if(argv.ttf) (function(){
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function toBuffer(arrayBuffer) {
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var length = arrayBuffer.byteLength;
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var view = new DataView(arrayBuffer, 0, length);
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var buffer = new Buffer(length);
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for (var i = 0, l = length; i < l; i++) {
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buffer[i] = view.getUint8(i, false);
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}
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return buffer;
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};
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var options = { preserveOS2Version: true };
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var upm = (argv.upm - 0) || 1000;
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var upmscale = upm / font.head.unitsPerEm;
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var skew = (argv.uprightify ? 1 : 0) * Math.tan((font.post.italicAngle || 0) / 180 * Math.PI);
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for(var j = 0; j < font.glyf.length; j++){
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var g = font.glyf[j];
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g.advanceWidth *= upmscale;
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if(g.contours) {
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for(var k = 0; k < g.contours.length; k++) {
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var contour = g.contours[k];
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for(var p = 0; p < contour.length; p++) {
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contour[p].y *= upmscale;
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contour[p].x = contour[p].x * upmscale + contour[p].y * skew;
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}
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}
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Glyph.prototype.cleanup.call(g, 1);
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}
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}
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font.head.unitsPerEm *= upmscale;
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font.hhea.ascent *= upmscale;
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font['OS/2'].usWinAscent *= upmscale;
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font['OS/2'].sTypoAscender *= upmscale;
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font.hhea.descent *= upmscale;
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font['OS/2'].usWinDescent *= upmscale;
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font['OS/2'].sTypoDescender *= upmscale;
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font.hhea.lineGap *= upmscale;
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font['OS/2'].sTypoLineGap *= upmscale;
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font['OS/2'].sxHeight *= upmscale;
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font['OS/2'].sCapHeight *= upmscale;
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fs.writeFileSync(argv.ttf, toBuffer(new TTFWriter(options).write(font)));
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})();
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*/
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if(argv.svg) (function(){
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console.log(' Writing outline as SVG -> ' + argv.svg);
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function cov(x){ return Math.round(x * 10000) / 10000 };
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function mix(a, b, p){ return a + (b - a) * p };
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function toSVGPath(glyph){
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var buf = '';
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if(glyph.contours) for(var j = 0; j < glyph.contours.length; j++) {
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var contour = glyph.contours[j];
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var lx = 0;
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var ly = 0;
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if(contour.length) {
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lx = contour[0].x;
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ly = contour[0].y;
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buf += 'M' + cov(lx) + ' ' + cov(ly);
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for(var k = 1; k < contour.length; k++) if(contour[k].onCurve){
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lx = contour[k].x;
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ly = contour[k].y;
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buf += 'L' + cov(lx) + ' ' + cov(ly);
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} else if(contour[k].cubic) {
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var rx = contour[k + 2].x;
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var ry = contour[k + 2].y;
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buf += 'C' + [contour[k].x, contour[k].y, contour[k + 1].x, contour[k + 1].y, rx, ry].map(cov).join(' ');
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lx = rx;
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ly = ry;
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k += 2;
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} else if(contour[k + 1]) {
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if(contour[k + 1].onCurve){
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var rx = contour[k + 1].x;
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var ry = contour[k + 1].y;
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} else {
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var rx = (contour[k].x + contour[k + 1].x) / 2;
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var ry = (contour[k].y + contour[k + 1].y) / 2;
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}
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var x1 = mix(lx, contour[k].x, 2 / 3);
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var y1 = mix(ly, contour[k].y, 2 / 3);
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var x2 = mix(rx, contour[k].x, 2 / 3);
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var y2 = mix(ry, contour[k].y, 2 / 3);
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buf += 'C' + [cov(x1), cov(y1), cov(x2), cov(y2), cov(rx), cov(ry)].join(' ');
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lx = rx;
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ly = ry;
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if(contour[k + 1].onCurve) k += 1;
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} else {
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var rx = contour[0].x;
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var ry = contour[0].y;
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buf += 'Q' + cov(contour[k].x) + ' ' + cov(contour[k].y) + ' ' + cov(contour[0].x) + ' ' + cov(contour[0].y);
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lx = rx;
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ly = ry;
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}
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buf += 'Z\n'
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}
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}
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return buf;
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}
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var svg = '<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" ><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1"><defs><font id="' + font.name.postScriptName + '">'
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var skew = (argv.uprightify ? 1 : 0) * Math.tan((font.post.italicAngle || 0) / 180 * Math.PI);
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var scale = (argv.upm || 1000) / 1000;
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svg += '<font-face font-family="' + font.name.fontFamily + '" font-weight="' + font['OS/2'].usWeightClass + '" font-stretch="normal" units-per-em="' + (1000 * scale) + '"/>'
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for(var j = 0; j < font.glyf.length; j++){
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var g = font.glyf[j];
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if(g.contours) {
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for(var k = 0; k < g.contours.length; k++) {
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var contour = g.contours[k];
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for(var p = 0; p < contour.length; p++) {
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contour[p].x += contour[p].y * skew;
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contour[p].x *= scale;
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contour[p].y *= scale;
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}
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}
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g.advanceWidth *= scale;
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//Glyph.prototype.cleanup.call(g, 0.25);
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}
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var gd = '<' + (j === 0 ? 'missing-glyph' : 'glyph') + ' glyph-name="' + g.name + '" horiz-adv-x="' + g.advanceWidth + '" '+ (g.unicode && g.unicode.length ? 'unicode="&#x' + g.unicode[0].toString(16) + ';"' : '') +' d="' + toSVGPath(g) + '" />'
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svg += gd;
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}
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svg += '</font></defs></svg>'
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fs.writeFileSync(argv.svg, svg, 'utf-8')
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})();
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if(argv.meta) (function(){
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console.log(' Writing metadata as JSON -> ' + argv.meta);
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if(argv.svg){
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font.glyf = null;
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font.glyfMap = null;
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}
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if(argv.feature){
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font.features = null;
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}
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fs.writeFileSync(argv.meta, JSON.stringify(font));
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})(); |