font_descriptor.dart 1.47 KB
/*
 * Copyright (C) 2017, David PHAM-VAN <dev.nfet.net@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

part of pdf;

class PdfFontDescriptor extends PdfObject {
  final PdfObjectStream file;
  final PdfTtfFont ttfFont;

  PdfFontDescriptor(this.ttfFont, this.file)
      : super(ttfFont.pdfDocument, "/FontDescriptor");

  @override
  void _prepare() {
    super._prepare();

    params["/FontName"] = PdfStream.string(ttfFont.fontName);
    params["/FontFile2"] = file.ref();
    params["/Flags"] = PdfStream.intNum(32);
    params["/FontBBox"] = PdfStream()
      ..putStringArray([
        ttfFont.font.xMin,
        ttfFont.font.yMin,
        ttfFont.font.xMax,
        ttfFont.font.yMax
      ]);
    params["/Ascent"] = PdfStream.intNum(ttfFont.font.ascent);
    params["/Descent"] = PdfStream.intNum(ttfFont.font.descent);
    params["/ItalicAngle"] = PdfStream.intNum(0);
    params["/CapHeight"] = PdfStream.intNum(10);
    params["/StemV"] = PdfStream.intNum(79);
  }
}