font_descriptor.dart
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/*
* 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 {
PdfFontDescriptor(this.ttfFont, this.file)
: super(ttfFont.pdfDocument, '/FontDescriptor');
final PdfObjectStream file;
final PdfTtfFont ttfFont;
@override
void _prepare() {
super._prepare();
params['/FontName'] = PdfStream.string('/' + ttfFont.fontName);
params['/FontFile2'] = file.ref();
params['/Flags'] = PdfStream.intNum(32);
params['/FontBBox'] = PdfStream()
..putIntArray(<int>[
(ttfFont.font.xMin / ttfFont.font.unitsPerEm * 1000).toInt(),
(ttfFont.font.yMin / ttfFont.font.unitsPerEm * 1000).toInt(),
(ttfFont.font.xMax / ttfFont.font.unitsPerEm * 1000).toInt(),
(ttfFont.font.yMax / ttfFont.font.unitsPerEm * 1000).toInt()
]);
params['/Ascent'] = PdfStream.intNum((ttfFont.ascent * 1000).toInt());
params['/Descent'] = PdfStream.intNum((ttfFont.descent * 1000).toInt());
params['/ItalicAngle'] = PdfStream.intNum(0);
params['/CapHeight'] = PdfStream.intNum(10);
params['/StemV'] = PdfStream.intNum(79);
}
}