getShader method

Shader? getShader(dynamic attribute, Rect rect)

Implementation

Shader? getShader(attribute, Rect rect) {
  NodeList nodeList = childNodes;
  Iterator iterator = nodeList.iterator;
  while (iterator.moveNext()) {
    if (iterator.current is SVGLinearGradientElement) {
      SVGLinearGradientElement element = iterator.current;
      dynamic id = element.attributeStyle['id'];
      if (attribute == 'url(#$id)') {
        element.parseCSSColorStop();
        double x0 = double.parse(element.attributes['x1']!);
        double y0 = double.parse(element.attributes['y1']!);
        double x1 = double.parse(element.attributes['x2']!);
        double y1 = double.parse(element.attributes['y2']!);
        CanvasLinearGradient glinearGradient = CanvasLinearGradient(x0, y0, x1, y1);
        glinearGradient.stops = element.stops;
        glinearGradient.colors = element.colors;
        LinearGradient linearGradient = _drawLinearGradient(glinearGradient, rect.left, rect.top, rect.width, rect.height);
        return linearGradient.createShader(rect);
      }
    }
  }
  return null;
}