vtkBalloonWidget.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkBalloonWidget.h
 
  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 vtkBalloonWidget_h
#define vtkBalloonWidget_h
 
#include "vtkHoverWidget.h"
#include "vtkInteractionWidgetsModule.h" // For export macro
 
class vtkBalloonRepresentation;
class vtkProp;
class vtkAbstractPropPicker;
class vtkStdString;
class vtkPropMap;
class vtkImageData;
 
class VTKINTERACTIONWIDGETS_EXPORT vtkBalloonWidget : public vtkHoverWidget
{
public:
  static vtkBalloonWidget* New();
 
 
  vtkTypeMacro(vtkBalloonWidget, vtkHoverWidget);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void SetEnabled(int) override;
 
  void SetRepresentation(vtkBalloonRepresentation* r)
  {
    this->Superclass::SetWidgetRepresentation(reinterpret_cast<vtkWidgetRepresentation*>(r));
  }
 
  vtkBalloonRepresentation* GetBalloonRepresentation()
  {
    return reinterpret_cast<vtkBalloonRepresentation*>(this->WidgetRep);
  }
 
  void CreateDefaultRepresentation() override;
 
 
  void AddBalloon(vtkProp* prop, vtkStdString* str, vtkImageData* img);
  void AddBalloon(vtkProp* prop, const char* str, vtkImageData* img);
  void AddBalloon(vtkProp* prop, const char* str) // for wrapping
  {
    this->AddBalloon(prop, str, nullptr);
  }
  void RemoveBalloon(vtkProp* prop);
 
 
  const char* GetBalloonString(vtkProp* prop);
  vtkImageData* GetBalloonImage(vtkProp* prop);
 
 
  void UpdateBalloonString(vtkProp* prop, const char* str);
  void UpdateBalloonImage(vtkProp* prop, vtkImageData* image);
 
  virtual vtkProp* GetCurrentProp() { return this->CurrentProp; }
 
 
  void SetPicker(vtkAbstractPropPicker*);
  vtkGetObjectMacro(Picker, vtkAbstractPropPicker);
 
  /*
   * Register internal Pickers within PickingManager
   */
  void RegisterPickers() override;
 
protected:
  vtkBalloonWidget();
  ~vtkBalloonWidget() override;
 
  // This class implements the method called from its superclass.
  int SubclassEndHoverAction() override;
  int SubclassHoverAction() override;
 
  // Classes for managing balloons
  vtkPropMap* PropMap; // PIMPL'd map of (vtkProp,vtkStdString)
 
  // Support for picking
  vtkAbstractPropPicker* Picker;
 
  // The vtkProp that is being hovered over (which may be nullptr)
  vtkProp* CurrentProp;
 
private:
  vtkBalloonWidget(const vtkBalloonWidget&) = delete;
  void operator=(const vtkBalloonWidget&) = delete;
};
 
#endif