QmitkNodeSelectionButton.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 QmitkNodeSelectionButton_h
#define QmitkNodeSelectionButton_h
 
#include <MitkQtWidgetsExports.h>
 
#include <mitkDataNode.h>
 
#include <QPushButton>
#include <QPixmap>
 
class MITKQTWIDGETS_EXPORT QmitkNodeSelectionButton : public QPushButton
{
  Q_OBJECT
 
public:
  explicit QmitkNodeSelectionButton(QWidget *parent = nullptr);
  ~QmitkNodeSelectionButton() override;
 
  const mitk::DataNode* GetSelectedNode() const;
  bool GetSelectionIsOptional() const;
 
public Q_SLOTS:
  virtual void SetSelectedNode(const mitk::DataNode* node);
  virtual void SetNodeInfo(QString info);
 
  void SetSelectionIsOptional(bool isOptional);
 
protected:
  void paintEvent(QPaintEvent *p) override;
  void changeEvent(QEvent *event) override;
 
  void AddNodeObserver();
  void RemoveNodeObserver();
  void OnNodeModified(const itk::Object * /*caller*/, const itk::EventObject &);
 
  mitk::DataNode::ConstPointer m_SelectedNode;
  QString m_Info;
  bool m_OutDatedThumbNail;
  QPixmap m_ThumbNail;
  itk::ModifiedTimeType m_DataMTime;
  itk::ModifiedTimeType m_SelectionPropMTime;
 
  bool m_IsOptional;
 
  unsigned long m_NodeModifiedObserverTag;
  bool m_NodeObserved;
};
 
#endif