Add Props to accept the curve border and shadow

[savioalwd]

Hi recently i used your package, but it doesnt have the prop to accept border customization around the NavCustomPainter. in next updation add this feature.

class NavCustomPainter extends CustomPainter { late double loc; late double s; Color color; Color borderColor; // Border color double borderWidth; // Border width Color shadowColor; // Shadow color double shadowBlurRadius; // Shadow blur radius Offset shadowOffset; // Shadow offset TextDirection textDirection;

NavCustomPainter( double startingLoc, int itemsLength, this.color, this.textDirection, { this.borderColor = Colors.black, this.borderWidth = 2.0, this.shadowColor = Colors.black54, this.shadowBlurRadius = 6.0, this.shadowOffset = const Offset(0, 4), }) { final span = 1.0 / itemsLength; s = 0.2; double l = startingLoc + (span - s) / 2; loc = textDirection == TextDirection.rtl ? 0.8 - l : l; }

@override void paint(Canvas canvas, Size size) { // Create the fill paint final fillPaint = Paint() ..color = color ..style = PaintingStyle.fill;

// Create the border paint
final borderPaint = Paint()
  ..color = borderColor
  ..style = PaintingStyle.stroke
  ..strokeWidth = borderWidth;

final path = Path()
  ..moveTo(0, 0)
  ..lineTo((loc - 0.1) * size.width, 0)
  ..cubicTo(
    (loc + s * 0.20) * size.width,
    size.height * 0.05,
    loc * size.width,
    size.height * 0.60,
    (loc + s * 0.50) * size.width,
    size.height * 0.60,
  )
  ..cubicTo(
    (loc + s) * size.width,
    size.height * 0.60,
    (loc + s - s * 0.20) * size.width,
    size.height * 0.05,
    (loc + s + 0.1) * size.width,
    0,
  )
  ..lineTo(size.width, 0)
  ..lineTo(size.width, size.height)
  ..lineTo(0, size.height)
  ..close();

// Add shadow before drawing the shape
canvas.drawShadow(path, shadowColor, shadowBlurRadius, true);

// Draw the filled shape
canvas.drawPath(path, fillPaint);

// Draw the border
canvas.drawPath(path, borderPaint);

}

@override bool shouldRepaint(CustomPainter oldDelegate) { return this != oldDelegate; } }