Method onAsPaint

src/svg/node/SVGPattern.cpp:131–159

}

bool SVGPattern::onAsPaint(const SVGRenderContext& context, Paint* paint) const {
  PatternAttributes attrs;
  const auto contentNode = this->resolveHref(context, &attrs);
  auto lengthContext = context.lengthContext();
  lengthContext.setBoundingBoxUnits(PatternUnits);
  Rect tile = lengthContext.resolveRect(attrs.x.has_value() ? *attrs.x : SVGLength(0),
                                        attrs.y.has_value() ? *attrs.y : SVGLength(0),
                                        attrs.width.has_value() ? *attrs.width : SVGLength(0),
                                        attrs.height.has_value() ? *attrs.height : SVGLength(0));

  if (tile.isEmpty()) {
    return false;
  }

  Recorder patternRecorder;
  auto canvas = patternRecorder.beginRecording();
  auto patternMatrix = attrs.patternTransform.value_or(Matrix::I());
  canvas->concat(patternMatrix);
  {
    SVGRenderContext recordingContext(context, canvas, lengthContext);
    contentNode->SVGContainer::onRender(recordingContext);
  }
  auto picture = patternRecorder.finishRecordingAsPicture();
  auto shaderImage =
      Image::MakeFrom(picture, static_cast<int>(tile.width()), static_cast<int>(tile.height()));
  auto shader = Shader::MakeImageShader(shaderImage, TileMode::Repeat, TileMode::Repeat);
  paint->setShader(shader);
  return true;
}

}  // namespace tgfx