shouldRepaint method

@override bool shouldRepaint(covariant TrianglePainter oldDelegate)

Determines whether the painter should repaint.

Returns true if any of the triangle's properties (color, style, or stroke width) have changed since the last paint, triggering a repaint.

Implementation

@override
bool shouldRepaint(TrianglePainter oldDelegate) {
  return oldDelegate.strokeColor != strokeColor ||
      oldDelegate.paintingStyle != paintingStyle ||
      oldDelegate.strokeWidth != strokeWidth;
}