A labelled cluster of ExRatatui.Widgets.Bar rendered together inside a ExRatatui.Widgets.BarChart.

Use groups when you need to show several related bars side by side with a shared caption — comparing the same metrics across categories, for example. Set BarChart.groups to [%BarGroup{}, ...] instead of the flat :data list; the chart will draw each group as a cluster separated by BarChart.group_gap cells.

Fields

• :label - optional caption rendered under the cluster; nil omits it
• :bars - list of %ExRatatui.Widgets.Bar{} belonging to the group (required; may be empty)

Examples

iex> alias ExRatatui.Widgets.{Bar, BarGroup}
iex> %BarGroup{label: "Q1", bars: [%Bar{label: "A", value: 5}]}
%ExRatatui.Widgets.BarGroup{
  label: "Q1",
  bars: [%ExRatatui.Widgets.Bar{label: "A", value: 5, style: nil, text_value: nil}]
}