categoricalpalette.h

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#ifndef CATEGORICALPALETTE_H
#define CATEGORICALPALETTE_H
 
#include <QColor>
#include <QList>
#include <QString>
#include <QStringList>
 
namespace CategoricalPalette
{
 
[[nodiscard]] QColor at(int index);
 
[[nodiscard]] int size();
 
[[nodiscard]] QList<QColor> palette();
 
// ── Slice BB-γ (2026-05-25) — named-palette catalogue ────────────────────
//
// Plotly's categorical palettes from plotly.colors.qualitative, plus the
// existing Tab10 default. Lookups are case-insensitive; unknown names
// fall back to Tab10.
 
[[nodiscard]] QList<QColor> byName(const QString &name);
 
[[nodiscard]] QStringList builtinNames();
 
} // namespace CategoricalPalette
 
#endif // CATEGORICALPALETTE_H