chord_region_segmenter.h

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

class ChordSegment
{
  Q_GADGET
  Q_PROPERTY (double absStartTicks MEMBER abs_start_ticks)
  Q_PROPERTY (double absEndTicks MEMBER abs_end_ticks)
  Q_PROPERTY (
    zrythm::structure::arrangement::ChordObject * chordObject MEMBER chord_object)
  Q_PROPERTY (int chordIndex MEMBER chord_index)
 
public:
  double abs_start_ticks = 0;

  double abs_end_ticks = 0;

  zrythm::structure::arrangement::ChordObject * chord_object = nullptr;

  int chord_index = 0;
};
 
} // namespace zrythm::gui::qquick

template <> struct QRangeModel::RowOptions<zrythm::gui::qquick::ChordSegment>
{
  static constexpr auto rowCategory = QRangeModel::RowCategory::MultiRoleItem;
};
 
namespace zrythm::gui::qquick
{

class ChordRegionSegmenter : public QObject
{
  Q_OBJECT
  Q_PROPERTY (
    zrythm::structure::arrangement::ChordRegion * region READ region WRITE
      setRegion NOTIFY regionChanged REQUIRED)
  Q_PROPERTY (QAbstractItemModel * segments READ segments NOTIFY segmentsChanged)
  QML_ELEMENT
 
public:
  explicit ChordRegionSegmenter (QObject * parent = nullptr);
 
  zrythm::structure::arrangement::ChordRegion * region () const
  {
    return region_;
  }
  void setRegion (zrythm::structure::arrangement::ChordRegion * region);
 
  QAbstractItemModel * segments () const { return segments_model_.get (); }
 
  Q_SIGNAL void regionChanged ();
  Q_SIGNAL void segmentsChanged ();
 
private:
  void disconnectAll ();

  void connectToRegion ();

  void recalculate ();
 
  QPointer<zrythm::structure::arrangement::ChordRegion> region_;

  std::vector<ChordSegment> segments_data_;

  std::unique_ptr<QRangeModel> segments_model_;

  std::vector<QMetaObject::Connection> connections_;
};
 
} // namespace zrythm::gui::qquick