TimingAxis.hh

#ifndef VIVY_TIMING_AXIS_H
#define VIVY_TIMING_AXIS_H

#ifndef __cplusplus
#error "This is a C++ header"
#endif

#include <QGraphicsWidget>
#include <QPainter>
#include <QGraphicsScene>
#include <cmath>
#include "../../../Lib/Audio.hh"

namespace Vivy
{
class TimingAxis final : public QGraphicsObject {
    Q_OBJECT

public:
    explicit TimingAxis(AudioContext::StreamPtr stream, int x0, int x1, int y) noexcept;
    ~TimingAxis() noexcept override = default;

    QRectF boundingRect() const override;
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;

private:
    static inline constexpr QColor axisColour = QColor(0, 0, 127);

    qreal penWidth{ 1 };
    AudioContext::StreamPtr audioStream;

    /*
     * We use ints here because
     * qPainter->drawLine() and qPainter->drawText()
     * restrict us to ints anyways
     */
    QVector<quint64> availableTicks = { 10, 100, 1000, 10000, 60000, 3600000, 86400000 };
    quint64 minBetweenMinor{ 10 };
    quint64 minorTicks;
    quint64 majorTicks;

    int minorTicksHeight { 3  };
    int majorTicksHeight { 7  };
    int timeDigitsHeight { 20 };
    int timeDigitsMargin { 3  };
    int ticksBase        { 30 };

    int x0{ 0 };
    int x1{ 0 };
    int y{ 0 };

    QString msToString(quint64 i) const noexcept;
    inline quint64 posFromMs(quint64 t, quint64 width, quint64 length) const noexcept;

protected:
public slots:
    void refreshTicks();
};

}

#endif // VIVY_TIMING_AXIS_H