border.dart
2.52 KB
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/*
* Copyright (C) 2017, David PHAM-VAN <dev.nfet.net@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General License for more details.
*
* You should have received a copy of the GNU Lesser General
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
part of pdf;
enum PdfBorderStyle {
/// Solid border. The border is drawn as a solid line.
solid,
/// The border is drawn with a dashed line.
dashed,
/// The border is drawn in a beveled style (faux three-dimensional) such
/// that it looks as if it is pushed out of the page (opposite of INSET)
beveled,
/// The border is drawn in an inset style (faux three-dimensional) such
/// that it looks as if it is inset into the page (opposite of BEVELED)
inset,
/// The border is drawn as a line on the bottom of the annotation rectangle
underlined
}
class PdfBorder extends PdfObject {
/// The style of the border
final PdfBorderStyle style;
/// The width of the border
final double width;
/// This array allows the definition of a dotted line for the border
final List<double> dash;
/// Creates a border using the predefined styles in [PdfAnnot].
/// Note: Do not use [PdfAnnot.dashed] with this method.
/// Use the other constructor.
///
/// @param width The width of the border
/// @param style The style of the border
/// @param dash The line pattern definition
/// @see [PdfAnnot]
PdfBorder(PdfDocument pdfDocument, this.width,
{this.style = PdfBorderStyle.solid, this.dash})
: super(pdfDocument);
/// @param os OutputStream to send the object to
@override
void writeContent(PdfStream os) {
super.writeContent(os);
var data = List<PdfStream>();
data.add(PdfStream.string("/S"));
data.add(PdfStream.string(
"/" + "SDBIU".substring(style.index, style.index + 1)));
data.add(PdfStream.string("/W $width"));
if (dash != null) {
data.add(PdfStream.string("/D"));
data.add(PdfStream.array(dash.map((double d) => PdfStream.num(d))));
}
os.putArray(data);
}
}