QmitkPointListModel.h

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/*============================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.

Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.

============================================================================*/

#ifndef QMITK_POINTLIST_MODEL_H_INCLUDED
#define QMITK_POINTLIST_MODEL_H_INCLUDED

#include "MitkQtWidgetsExtExports.h"
#include <QAbstractListModel>

#include "mitkDataNode.h"
#include "mitkPointSet.h"

class MITKQTWIDGETSEXT_EXPORT QmitkPointListModel : public QAbstractListModel
{
  Q_OBJECT

public:
  QmitkPointListModel(mitk::DataNode * = nullptr, int t = 0, QObject *parent = nullptr);
  ~QmitkPointListModel() override;

  Qt::ItemFlags flags(const QModelIndex &) const override;

  int rowCount(const QModelIndex &parent = QModelIndex()) const override;

  QVariant data(const QModelIndex &index, int role) const override;

  QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;

  void SetPointSetNode(mitk::DataNode *pointSetNode);

  mitk::PointSet *GetPointSet() const;

  // which point set to work on
  mitk::DataNode *GetPointSetNode() const;

  void SetTimeStep(int t);

  int GetTimeStep() const;

  void OnPointSetChanged(const itk::EventObject &e);

  void OnPointSetDeleted(const itk::EventObject &e);

  bool GetPointForModelIndex(const QModelIndex &index,
                             mitk::PointSet::PointType &p,
                             mitk::PointSet::PointIdentifier &id) const;

  bool GetModelIndexForPointID(mitk::PointSet::PointIdentifier id, QModelIndex &index) const;

public slots:

  void MoveSelectedPointUp();

  void MoveSelectedPointDown();

  void RemoveSelectedPoint();

signals:

  void SignalUpdateSelection();

protected:
  void ObserveNewPointSet(mitk::DataNode *pointSetNode);

  // initially checks if there is a PointSet as data in the DataNode.
  // returns PointSet if so and nullptr if other data is set to node
  mitk::PointSet *CheckForPointSetInNode(mitk::DataNode *node) const;

protected:
  mitk::DataNode *m_PointSetNode;
  unsigned int m_PointSetModifiedObserverTag;
  unsigned int m_PointSetDeletedObserverTag;
  int m_TimeStep;
};

#endif