Graph.h

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#pragma once
#include <QPainter>
#include <QPalette>
#include <misc/gen/pointer.h>
#include <misc/global.h>
#include <misc/qt/Draw.h>
 
namespace sf
{

class _MISC_CLASS Graph
{
  public:
    explicit Graph(const QPalette& palette = {});

    void setRuler(Draw::ERulerOrientation ro, double start, double stop, int digits, const QString& unit);

    void setGrid(Draw::EGridOrientation go, Draw::ERulerOrientation ro);

    void setBounds(const QFontMetrics& fontMetrics, const QRect& bounds);

    const QRect& paint(QPainter& painter, const QRect& bounds, const QRegion& region = null_ref<QRegion>());

    void paintPlotCross(QPainter& painter, const QString& text);

    [[nodiscard]] const QRect& getPlotArea() const;

    enum EColor
    {
      cRulerText,
      cRulerLine,
      cGridLines,
      cRulerBackground,
      cGraphBackground,
      cGraphForeground,
    };

    void setColor(EColor index, QColor color);

    bool _debug{false};
 
  protected:
    QVector<QColor> _colors;

    struct RulerInfo
    {
        bool enabled{false};
        double start{0};
        double stop{0};
        int digits{3};
        QString unit;
        QRect bounds;
        QRect rect;
        int size{100};
 
    } _top, _left, _right, _bottom;

    Draw::ERulerOrientation _horizontal{Draw::roNone}, _vertical{Draw::roNone};

    RulerInfo* getRulerInfo(Draw::ERulerOrientation ro);

    QRect _plotArea;
};
 
}// namespace sf