vtkOpenGLGL2PSHelper.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkOpenGLGL2PSHelper.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 vtkOpenGLGL2PSHelper_h
#define vtkOpenGLGL2PSHelper_h
 
#include "vtkObject.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
#include <string>                      // For string usage
 
class vtkActor;
class vtkImageData;
class vtkMatrix4x4;
class vtkPath;
class vtkRenderer;
class vtkRenderWindow;
class vtkTextProperty;
class vtkTransformFeedback;
 
class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLGL2PSHelper : public vtkObject
{
public:
  static vtkOpenGLGL2PSHelper* New();
  vtkAbstractTypeMacro(vtkOpenGLGL2PSHelper, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  static vtkOpenGLGL2PSHelper* GetInstance();
  static void SetInstance(vtkOpenGLGL2PSHelper*);
 
 
  vtkGetMacro(RenderWindow, vtkRenderWindow*);
 
  enum State
  {
    Inactive = 0, 
    Background,   
    Capture       
  };
 
 
  vtkGetMacro(ActiveState, State);
 
 
  vtkSetMacro(PointSize, float);
  vtkGetMacro(PointSize, float);
 
 
  vtkSetMacro(LineWidth, float);
  vtkGetMacro(LineWidth, float);
 
 
  vtkSetMacro(LineStipple, unsigned short);
  vtkGetMacro(LineStipple, unsigned short);
 
 
  virtual void ProcessTransformFeedback(
    vtkTransformFeedback* tfc, vtkRenderer* ren, vtkActor* act) = 0;
  virtual void ProcessTransformFeedback(
    vtkTransformFeedback* tfc, vtkRenderer* ren, unsigned char col[4]) = 0;
  virtual void ProcessTransformFeedback(
    vtkTransformFeedback* tfc, vtkRenderer* ren, float col[4]) = 0;
 
  virtual void DrawString(const std::string& str, vtkTextProperty* tprop, double pos[3],
    double backgroundDepth, vtkRenderer* ren) = 0;
 
  virtual void DrawPath(vtkPath* path, double rasterPos[3], double windowPos[2],
    unsigned char rgba[4], double scale[2] = nullptr, double rotateAngle = 0.0,
    float strokeWidth = -1, const char* label = nullptr) = 0;
 
  virtual void Draw3DPath(vtkPath* path, vtkMatrix4x4* actorMatrix, double rasterPos[3],
    unsigned char actorColor[4], vtkRenderer* ren, const char* label = nullptr) = 0;
 
  virtual void DrawImage(vtkImageData* image, double pos[3]) = 0;
 
protected:
  friend class vtkOpenGLGL2PSExporter;
 
  vtkOpenGLGL2PSHelper();
  ~vtkOpenGLGL2PSHelper() override;
 
  vtkSetMacro(ActiveState, State);
  vtkSetMacro(TextAsPath, bool);
  vtkSetMacro(RenderWindow, vtkRenderWindow*); // Doesn't ref count, not needed.
  vtkSetMacro(PointSizeFactor, float);
  vtkSetMacro(LineWidthFactor, float);
 
  static vtkOpenGLGL2PSHelper* Instance;
 
  vtkRenderWindow* RenderWindow;
  State ActiveState;
  bool TextAsPath;
  float PointSize;
  float LineWidth;
  float PointSizeFactor;
  float LineWidthFactor;
  unsigned short LineStipple;
 
private:
  vtkOpenGLGL2PSHelper(const vtkOpenGLGL2PSHelper&) = delete;
  void operator=(const vtkOpenGLGL2PSHelper&) = delete;
};
 
#endif // vtkOpenGLGL2PSHelper_h