pdfkit2/js/font.js

(function() {
  var EmbeddedFont, PDFFont, StandardFont, fontkit;

  fontkit = require('fontkit');

  PDFFont = (function() {
    PDFFont.open = function(document, src, family, id) {
      var font;
      if (typeof src === 'string') {
        if (StandardFont.isStandardFont(src)) {
          return new StandardFont(document, src, id);
        }
        font = fontkit.openSync(src, family);
      } else if (Buffer.isBuffer(src)) {
        font = fontkit.create(src, family);
      } else if (src instanceof Uint8Array) {
        font = fontkit.create(new Buffer(src), family);
      } else if (src instanceof ArrayBuffer) {
        font = fontkit.create(new Buffer(new Uint8Array(src)), family);
      }
      if (font == null) {
        throw new Error('Not a supported font format or standard PDF font.');
      }
      return new EmbeddedFont(document, font, id);
    };

    function PDFFont() {
      throw new Error('Cannot construct a PDFFont directly.');
    }

    PDFFont.prototype.encode = function(text) {
      throw new Error('Must be implemented by subclasses');
    };

    PDFFont.prototype.widthOfString = function(text) {
      throw new Error('Must be implemented by subclasses');
    };

    PDFFont.prototype.ref = function() {
      return this.dictionary != null ? this.dictionary : this.dictionary = this.document.ref();
    };

    PDFFont.prototype.finalize = function() {
      if (this.embedded || (this.dictionary == null)) {
        return;
      }
      this.embed();
      return this.embedded = true;
    };

    PDFFont.prototype.embed = function() {
      throw new Error('Must be implemented by subclasses');
    };

    PDFFont.prototype.lineHeight = function(size, includeGap) {
      var gap;
      if (includeGap == null) {
        includeGap = false;
      }
      gap = includeGap ? this.lineGap : 0;
      return (this.ascender + gap - this.descender) / 1000 * size;
    };

    return PDFFont;

  })();

  module.exports = PDFFont;

  StandardFont = require('./font/standard');

  EmbeddedFont = require('./font/embedded');

}).call(this);