protected override void paintFeature(Canvas canvas, Matrix4 transform)
{
Paint paint = new Paint {
color = this.color.withAlpha(this._alpha.value)
};
Offset center = this._position;
if (this._repositionToReferenceBox)
{
center = Offset.lerp(center, this.referenceBox.size.center(Offset.zero), this._radiusController.value);
}
Offset originOffset = transform.getAsTranslation();
canvas.save();
if (originOffset == null)
{
canvas.concat(transform.toMatrix3());
}
else
{
canvas.translate(originOffset.dx, originOffset.dy);
}
if (this._clipCallback != null)
{
Rect rect = this._clipCallback();
if (this._customBorder != null)
{
canvas.clipPath(this._customBorder.getOuterPath(rect));
}
else if (this._borderRadius != BorderRadius.zero)
{
canvas.clipRRect(RRect.fromRectAndCorners(
rect,
topLeft: this._borderRadius.topLeft,
topRight: this._borderRadius.topRight,
bottomLeft: this._borderRadius.bottomLeft,
bottomRight: this._borderRadius.bottomRight));
}
else
{
canvas.clipRect(rect);
}
}
canvas.drawCircle(center, this._radius.value, paint);
canvas.restore();
}