color_pie.h

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#ifndef COCKATRICE_COLOR_PIE_H
#define COCKATRICE_COLOR_PIE_H
 
#ifndef COLOR_PIE_H
#define COLOR_PIE_H
 
#include <QMap>
#include <QString>
#include <QWidget>
 
class ColorPie : public QWidget
{
    Q_OBJECT
 
public:
    explicit ColorPie(const QMap<QString, int> &_colors = {}, QWidget *parent = nullptr);
 
    void setColors(const QMap<QString, int> &_colors);
 
    QSize minimumSizeHint() const override;
 
protected:
    void paintEvent(QPaintEvent *) override;
 
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
    void enterEvent(QEnterEvent *event) override;
#else
    void enterEvent(QEvent *event) override;
#endif
    void leaveEvent(QEvent *) override;
    void mouseMoveEvent(QMouseEvent *event) override;
 
private:
    QList<QPair<QString, int>> colors;
    bool isHovered = false;
    const double minRatioThreshold = 0.01; // skip tiny slices
 
    QColor colorFromName(const QString &name) const;
    QString tooltipForPoint(const QPoint &pt) const;
};
 
#endif // COLOR_PIE_H
 
#endif // COCKATRICE_COLOR_PIE_H