drawFormXObject method

void drawFormXObject(PdfXObject object, { List<double>? matrix, })

Paints a Form XObject onto the page.

The object is registered in the page resources and painted through q <matrix> cm /Name Do Q, so it cannot leak graphics state into what comes next. matrix is the six-value PDF transform [a b c d e f]; omitted, the object is painted in the page coordinate system.

Implementation

void drawFormXObject(PdfXObject object, {List<double>? matrix}) {
  var o = 0;
  assert(() {
    if (_page.settings.verbose) {
      o = _buf.offset;
      _buf.putString(' ' * (_indent));
    }
    return true;
  }());

  _page.addXObject(object);

  _buf.putString('q ');
  if (matrix != null && matrix.length == 6) {
    PdfNumList(matrix).output(_page, _buf);
    _buf.putString(' cm ');
  }
  _buf.putString('${object.name} Do Q ');
  _page.altered = true;

  assert(() {
    if (_page.settings.verbose) {
      _buf.putString(' ' * math.max(0, _commentIndent - _buf.offset + o));
      _buf.putComment('drawFormXObject(${object.ref()})');
    }
    return true;
  }());
}