text: /*=========================================================================
  
    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 vtkRenderWidget_h
  #define vtkRenderWidget_h
  
  #include "vtkRenderingCoreModule.h" // For export macro
  #include "vtkObject.h"
  #include "vtkNew.h" // For member variables.
  #include "vtkVector.h" // For member variables.
  #include <string> // For member variables.
  
  class vtkAbstractInteractionDevice;
  class vtkAbstractRenderDevice;
  
  class VTKRENDERINGCORE_EXPORT vtkRenderWidget : public vtkObject
  {
  public:
    vtkTypeMacro(vtkRenderWidget ,vtkObject)
    void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
    static vtkRenderWidget* New();
  
    /**
     * @brief Set the widget position in screen coordinates.
     * @param pos The position of the widget in screen coordinates.
     */
    void SetPosition(const vtkVector2i &pos);
  
    /**
     * @brief Get the widget position in screen coordinates.
     * @return The position of the widget in screen coordinates, default of 0, 0.
     */
    vtkVector2i GetPosition() const { return this->Position; }
  
    /**
     * @brief Set the widget size in screen coordinates.
     * @param size The width and height of the widget in screen coordinates
     */
    void SetSize(const vtkVector2i &size);
  
    /**
     * @brief Get the widget size in screen coordinates.
     * @return The width and height of the widget in screen coordinates, default
     * of 300x300.
     */
    vtkVector2i GetSize() const { return this->Size; }
  
    /**
     * @brief Set the name of the widget.
     * @param name The name to set to the window.
     */
    void SetName(const std::string &name);
  
    /**
     * @brief Get the name of the widget.
     * @return The current name of the widget.
     */
    std::string GetName() const { return this->Name; }
  
    /**
     * @brief Render everything in the current widget.
     */
    virtual void Render();
  
    /**
     * @brief Make the widget's context current, this will defer to the OS
     * specific methods, and calls should be kept to a minimum as they are quite
     * expensive.
     */
    virtual void MakeCurrent();
  
    void Initialize();
    void Start();
  
  protected:
    vtkRenderWidget();
    ~vtkRenderWidget() VTK_OVERRIDE;
  
    vtkVector2i Position; // Position of the widget in screen coordinates.
    vtkVector2i Size; // Position of the widget in screen coordinates.
    std::string Name; // The name of the widget.
  
    vtkNew<vtkAbstractInteractionDevice> InteractionDevice; // Interaction device.
    vtkNew<vtkAbstractRenderDevice> RenderDevice; // Render device target.
  
  private:
    vtkRenderWidget(const vtkRenderWidget&) VTK_DELETE_FUNCTION;
    void operator=(const vtkRenderWidget&) VTK_DELETE_FUNCTION;
  };
  
  #endif
  