Sparkline

Inline chart rendered with ▁▂▃▄▅▆▇█ block characters. Values are right-aligned so the most recent point is always visible.

Usage

const data = [_]f64{ 10, 40, 25, 80, 60, 95, 55, 70 };

tui.widgets.Sparkline{
    .data  = &data,
    .max   = 100.0,   // null → auto-scale to the max value in data
    .style = .{ .fg = .green },
}.render(area, buf);

Multi-row areas

Render into a taller area to fill values upward. Sub-cell block characters provide 8× vertical resolution per row a four-row sparkline has 32 discrete height levels.

Fields

Field	Type	Description
data	[]const f64	Data values to display
max	?f64	Scale ceiling null for auto
style	Style	Character colour / style