paintFeature method

Implementation

@override
void paintFeature(Canvas canvas, Matrix4 transform) {
  final int alpha = _fadeInController.isAnimating ? _fadeIn.value : _fadeOut.value;
  final Paint paint = Paint()..color = color.withAlpha(alpha);
  // Splash moves to the center of the reference box.
  final Offset center = Offset.lerp(
    _position,
    referenceBox.size.center(Offset.zero),
    Curves.ease.transform(_radiusController.value),
  );
  final Offset originOffset = MatrixUtils.getAsTranslation(transform);
  canvas.save();
  if (originOffset == null) {
    canvas.transform(transform.storage);
  } else {
    canvas.translate(originOffset.dx, originOffset.dy);
  }
  if (_clipCallback != null) {
    final Rect rect = _clipCallback();
    if (_customBorder != null) {
      canvas.clipPath(_customBorder.getOuterPath(rect, textDirection: _textDirection));
    } else if (_borderRadius != BorderRadius.zero) {
      canvas.clipRRect(RRect.fromRectAndCorners(
        rect,
        topLeft: _borderRadius.topLeft, topRight: _borderRadius.topRight,
        bottomLeft: _borderRadius.bottomLeft, bottomRight: _borderRadius.bottomRight,
      ));
    } else {
      canvas.clipRect(rect);
    }
  }
  canvas.drawCircle(center, _radius.value, paint);
  canvas.restore();
}