Added option to added Rounded Capped PieChart

[Begarudev]

enhacement asked in this issue #1700

[imaNNeo]

Isn't it better to use the Shadow object?

Something like what we have in the LineChart:

fl_chart/lib/src/chart/line_chart/line_chart_data.dart

Lines 360 to 361 in 11d13a7

	/// Drops a shadow behind the bar line.
	final Shadow shadow;

And this is how we paint it in the drawBarShadow() function:

fl_chart/lib/src/chart/line_chart/line_chart_painter.dart

Lines 906 to 939 in 11d13a7

	void drawBarShadow(
	CanvasWrapper canvasWrapper,
	Path barPath,
	LineChartBarData barData,
	) {
	if (!barData.show || barData.shadow.color.opacity == 0.0) {
	return;
	}
	if (barPath.computeMetrics().isEmpty) {
	return;
	}
	_barPaint
	..strokeCap = barData.isStrokeCapRound ? StrokeCap.round : StrokeCap.butt
	..strokeJoin =
	barData.isStrokeJoinRound ? StrokeJoin.round : StrokeJoin.miter
	..color = barData.shadow.color
	..shader = null
	..strokeWidth = barData.barWidth
	..color = barData.shadow.color
	..maskFilter = MaskFilter.blur(
	BlurStyle.normal,
	Utils().convertRadiusToSigma(barData.shadow.blurRadius),
	);
	barPath = barPath.toDashedPath(barData.dashArray);
	barPath = barPath.shift(barData.shadow.offset);
	canvasWrapper.drawPath(
	barPath,
	_barPaint,
	);
	}

[imaNNeo]

And if it is transparent (default value), we will not draw it.

[imaNNeo]

As I see, it also tries to fix #1699.
But I think it would be better if you create separate PRs for this specific case to follow it up.

[moritz157]

Any news on this? I would really like to be able to round caps in donut charts too and looking at this it looks like it's pretty much solved and just has to be merged (and maybe reorganized first), right?

[imaNNeo]

@moritz157 It seems the PR author is not available anymore. Also, the branch is outdated. So I think we have to close it.

[diegoveloper]

any chance to re-open and finish the implementation of this feature? :D