TimeRuler.hpp

#pragma once
#include <Process/TimeValue.hpp>
 
#include <Scenario/Document/TimeRuler/TimeRuler.hpp>
 
#include <score/model/ColorReference.hpp>
 
#include <ossia/editor/scenario/time_value.hpp>
 
#include <ossia-qt/time.hpp>
 
#include <QGlyphRun>
#include <QGraphicsItem>
#include <QPainterPath>
#include <QPoint>
#include <QPointer>
#include <QTextLayout>
 
#include <score_plugin_scenario_export.h>
 
#include <chrono>
#include <deque>
#include <verdigris>
class QGraphicsSceneMouseEvent;
class QPainter;
class QStyleOptionGraphicsItem;
class QWidget;
class QGraphicsView;
 
namespace Scenario
{
class MusicalGrid;
class TimeRulerBase
    : public QObject
    , public QGraphicsItem
{
  W_OBJECT(TimeRulerBase)
public:
  qreal width() const { return m_width; }
  void setWidth(qreal newWidth);
  void setStartPoint(ossia::time_value dur);
  virtual void setZoomRatio(double factor) = 0;
  virtual void setGrid(MusicalGrid& grid);
 
  void drag(QPointF arg_1, QPointF arg_2) W_SIGNAL(drag, arg_1, arg_2);
  void rescale() W_SIGNAL(rescale);
 
protected:
  virtual void createRulerPath() = 0;
  virtual void computeGraduationSpacing() = 0;
  QRectF boundingRect() const final override;
  void mousePressEvent(QGraphicsSceneMouseEvent*) final override;
  void mouseDoubleClickEvent(QGraphicsSceneMouseEvent*) final override;
  void mouseMoveEvent(QGraphicsSceneMouseEvent*) final override;
  void mouseReleaseEvent(QGraphicsSceneMouseEvent*) final override;
  ossia::time_value m_startPoint{};
  qreal m_width{};
};
 
class TimeRuler final : public TimeRulerBase
{
  Q_INTERFACES(QGraphicsItem)
 
public:
  enum class Format
  {
    Hours,
    Seconds,
    Milliseconds,
    Microseconds,
  };
 
  TimeRuler(QGraphicsView*);
 
private:
  void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
      override;
 
  qreal graduationSpacing() const
  {
    return m_intervalsBetweenMark * m_graduationsSpacing;
  }
 
  void computeGraduationSpacing() override;
  void createRulerPath() override;
  void setZoomRatio(double factor) final override;
 
  struct Mark
  {
    double pos;
    std::chrono::nanoseconds time;
    QGlyphRun text;
  };
 
  double m_pixelPerMillis{0.01};
 
  std::vector<Mark> m_marks;
 
  qreal m_graduationsSpacing{};
  qreal m_graduationDelta{};
  qreal m_intervalsBetweenMark{};
  Format m_timeFormat{};
 
  QPainterPath m_path;
 
  QGraphicsView* m_viewport{};
 
  QGlyphRun getGlyphs(std::chrono::nanoseconds);
  QTextLayout m_layout;
  std::deque<std::pair<std::chrono::nanoseconds, QGlyphRun>> m_stringCache;
};
 
class MusicalRuler final : public TimeRulerBase
{
  Q_INTERFACES(QGraphicsItem)
 
public:
  enum class Format
  {
    Bars,
    Quarters,
    Semiquavers,
    Cents,
  };
 
  MusicalRuler(QGraphicsView*);
 
private:
  void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
      override;
 
  void computeGraduationSpacing() override;
  void createRulerPath() override;
  void setZoomRatio(double factor) final override;
  void setGrid(MusicalGrid& grid) final override;
 
  QPointer<MusicalGrid> m_grid{};
 
  QGraphicsView* m_viewport{};
 
  QGlyphRun getGlyphs(ossia::bar_time timings, ossia::bar_time increments);
  QTextLayout m_layout;
  std::deque<std::tuple<ossia::bar_time, ossia::bar_time, QGlyphRun>> m_stringCache;
};
}