timeline_position_tracker.h

// SPDX-FileCopyrightText: © 2026 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#pragma once
 
#include <vector>
 
#include "structure/arrangement/arranger_object.h"
 
#include <QObject>
#include <QPointer>
#include <QtQmlIntegration/qqmlintegration.h>
 
namespace zrythm::gui::qquick
{

class TimelinePositionTracker : public QObject
{
  Q_OBJECT
  QML_ELEMENT
 
  Q_PROPERTY (
    zrythm::structure::arrangement::ArrangerObject * arrangerObject READ
      arrangerObject WRITE setArrangerObject NOTIFY arrangerObjectChanged)
  Q_PROPERTY (
    double timelineTicks READ timelineTicks NOTIFY timelineTicksChanged)
  Q_PROPERTY (
    double timelineEndTicks READ timelineEndTicks NOTIFY timelineEndTicksChanged)
 
public:
  explicit TimelinePositionTracker (QObject * parent = nullptr);
 
  structure::arrangement::ArrangerObject * arrangerObject () const
  {
    return obj_;
  }
  void setArrangerObject (structure::arrangement::ArrangerObject * obj);
 
  double timelineTicks () const;
  double timelineEndTicks () const;
 
Q_SIGNALS:
  void arrangerObjectChanged ();
  void timelineTicksChanged ();
  void timelineEndTicksChanged ();
 
private:
  void disconnect_all ();
  void reconnect ();
 
  QPointer<structure::arrangement::ArrangerObject> obj_;
  std::vector<QMetaObject::Connection>             connections_;
};
 
} // namespace zrythm::gui::qquick