layout method

Implementation

@override
PwBox layout(Context context, BoxConstraints constraints) {
  final _SvgDoc doc = _SvgParser().parse(svg);
  final PwSize box = constraints.constrain(PwSize(width, height));
  return CustomPaint(
    size: box,
    painter: (PdfCanvas canvas, PwSize painted) {
      canvas.endText();
      final SvgViewBox vb = doc.viewBox ??
          SvgViewBox(0, 0, painted.width, painted.height);
      final double sx = painted.width / vb.width;
      final double sy = painted.height / vb.height;
      for (final _SvgShape shape in doc.shapes) {
        shape.paint(
          canvas,
          sx: sx,
          sy: sy,
          ox: -vb.minX * sx,
          oy: -vb.minY * sy,
          fallbackColor: color,
          fallbackStroke: strokeWidth,
        );
      }
    },
  ).layout(context, constraints);
}