vtkQWidgetWidget.h

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

  Program:   Visualization Toolkit

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkQWidgetWidget_h
#define vtkQWidgetWidget_h

#include "vtkAbstractWidget.h"
#include "vtkGUISupportQtModule.h" // For export macro
#include <QPointF>                 // for ivar

class QWidget;
class vtkQWidgetRepresentation;

class VTKGUISUPPORTQT_EXPORT vtkQWidgetWidget : public vtkAbstractWidget
{
  friend class vtkInteractionCallback;

public:
  static vtkQWidgetWidget* New();


  vtkTypeMacro(vtkQWidgetWidget, vtkAbstractWidget);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void SetRepresentation(vtkQWidgetRepresentation* rep);

  // Description:
  // Disable/Enable the widget if needed.
  // Unobserved the camera if the widget is disabled.
  void SetEnabled(int enabling) override;

  vtkQWidgetRepresentation* GetQWidgetRepresentation();

  void CreateDefaultRepresentation() override;

  void SetWidget(QWidget* w);

protected:
  vtkQWidgetWidget();
  ~vtkQWidgetWidget() override;

  // Manage the state of the widget
  int WidgetState;
  enum _WidgetState
  {
    Start = 0,
    Active
  };

  QWidget* Widget;
  QPointF LastWidgetCoordinates;

  // These methods handle events
  static void SelectAction3D(vtkAbstractWidget*);
  static void EndSelectAction3D(vtkAbstractWidget*);
  static void MoveAction3D(vtkAbstractWidget*);

private:
  vtkQWidgetWidget(const vtkQWidgetWidget&) = delete;
  void operator=(const vtkQWidgetWidget&) = delete;
};

#endif