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File size: 2,692 Bytes
917b070 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | @using TaskTrackingSystem.WebApp.Components.Shared.Charts
<div class="@WrapperClass">
@if (!Items.Any() || Items.Sum(item => item.Value) <= 0)
{
<div class="flex h-56 items-center justify-center text-sm text-slate-400">@EmptyText</div>
}
else
{
<div class="flex justify-center">
<svg viewBox="0 0 190 190" class="h-56 w-56 -rotate-90">
<circle cx="95" cy="95" r="70" fill="none" stroke="#e2e8f0" stroke-width="24" />
@foreach (var slice in Slices)
{
<circle cx="95" cy="95" r="70" fill="none" stroke="@slice.Color" stroke-width="24" stroke-dasharray="@slice.DashArray" stroke-dashoffset="@slice.DashOffset" stroke-linecap="round" />
}
</svg>
</div>
@if (ShowLegend)
{
<div class="mt-3 space-y-3">
@foreach (var item in Items)
{
<div class="flex items-center justify-between rounded-2xl border border-slate-200 bg-slate-50 px-4 py-3">
<div class="flex items-center gap-3">
<span class="h-3 w-3 rounded-full" style="background-color: @item.Color"></span>
<span class="text-sm text-slate-600">@item.Label</span>
</div>
<span class="text-sm font-semibold text-slate-900">@item.Value.ToString(ValueFormat)</span>
</div>
}
</div>
}
}
</div>
@code {
[Parameter] public IReadOnlyList<ChartDataPoint> Items { get; set; } = Array.Empty<ChartDataPoint>();
[Parameter] public bool ShowLegend { get; set; } = true;
[Parameter] public string EmptyText { get; set; } = "No data available";
[Parameter] public string ValueFormat { get; set; } = "0";
[Parameter] public string WrapperClass { get; set; } = string.Empty;
private IReadOnlyList<Slice> Slices => BuildSlices();
private IReadOnlyList<Slice> BuildSlices()
{
const double radius = 70;
var circumference = 2 * Math.PI * radius;
var total = Items.Sum(item => Math.Max(0, item.Value));
var offset = 0.0;
var slices = new List<Slice>();
foreach (var item in Items)
{
var value = Math.Max(0, item.Value);
var arc = total > 0 ? circumference * value / total : 0;
slices.Add(new Slice(item.Color, $"{arc:0.##} {(circumference - arc):0.##}", -offset));
offset += arc;
}
return slices;
}
private sealed record Slice(string Color, string DashArray, double DashOffset);
}
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