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vtkOpenGLContextBufferId.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkOpenGLContextBufferId.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
15 
25 #ifndef vtkOpenGLContextBufferId_h
26 #define vtkOpenGLContextBufferId_h
27 
28 #include "vtkRenderingContextOpenGLModule.h" // For export macro
30 
31 class vtkTextureObject;
33 
34 class VTKRENDERINGCONTEXTOPENGL_EXPORT vtkOpenGLContextBufferId : public vtkAbstractContextBufferId
35 {
36 public:
38  virtual void PrintSelf(ostream &os, vtkIndent indent);
39 
44 
48  virtual void ReleaseGraphicsResources();
49 
51 
54  virtual void SetContext(vtkRenderWindow *context);
57 
62  virtual bool IsSupported();
63 
70  virtual void Allocate();
71 
75  virtual bool IsAllocated() const;
76 
82  virtual void SetValues(int srcXmin,
83  int srcYmin);
84 
93  virtual vtkIdType GetPickedItem(int x, int y);
94 
95 protected:
98 
101 
102 private:
103  vtkOpenGLContextBufferId(const vtkOpenGLContextBufferId &) VTK_DELETE_FUNCTION;
104  void operator=(const vtkOpenGLContextBufferId &) VTK_DELETE_FUNCTION;
105 };
106 
107 #endif // #ifndef vtkOpenGLContextBufferId_h
vtkAbstractContextBufferId.h
vtkOpenGLContextBufferId::~vtkOpenGLContextBufferId
virtual ~vtkOpenGLContextBufferId()
vtkOpenGLContextBufferId::IsAllocated
virtual bool IsAllocated() const
Tell if the buffer has been allocated.
vtkIdType
int vtkIdType
Definition: vtkType.h:287
vtkOpenGLContextBufferId::New
static vtkOpenGLContextBufferId * New()
Creates a 2D Painter object.
vtkOpenGLContextBufferId::Texture
vtkTextureObject * Texture
Definition: vtkOpenGLContextBufferId.h:100
vtkAbstractContextBufferId
2D array of ids, used for picking.
Definition: vtkAbstractContextBufferId.h:47
vtkOpenGLContextBufferId::PrintSelf
virtual void PrintSelf(ostream &os, vtkIndent indent)
Methods invoked by print to print information about the object including superclasses.
vtkOpenGLContextBufferId::Allocate
virtual void Allocate()
Allocate the memory for at least Width*Height elements.
vtkOpenGLContextBufferId::SetValues
virtual void SetValues(int srcXmin, int srcYmin)
Copy the contents of the current read buffer to the internal texture starting at lower left corner of...
vtkOpenGLContextBufferId::Context
vtkOpenGLRenderWindow * Context
Definition: vtkOpenGLContextBufferId.h:99
vtkOpenGLContextBufferId::vtkOpenGLContextBufferId
vtkOpenGLContextBufferId()
vtkIndent
a simple class to control print indentation
Definition: vtkIndent.h:40
vtkTextureObject
abstracts an OpenGL texture object.
Definition: vtkTextureObject.h:44
vtkOpenGLContextBufferId::ReleaseGraphicsResources
virtual void ReleaseGraphicsResources()
Release any graphics resources that are being consumed by this object.
vtkOpenGLContextBufferId
2D array of ids stored in VRAM.
Definition: vtkOpenGLContextBufferId.h:35
vtkOpenGLContextBufferId::SetContext
virtual void SetContext(vtkRenderWindow *context)
Set/Get the OpenGL context owning the texture object resource.
vtkOpenGLContextBufferId::IsSupported
virtual bool IsSupported()
Returns if the context supports the required extensions.
vtkOpenGLContextBufferId::GetContext
virtual vtkRenderWindow * GetContext()
vtkOpenGLRenderWindow
OpenGL rendering window.
Definition: vtkOpenGLRenderWindow.h:42
vtkRenderWindow
create a window for renderers to draw into
Definition: vtkRenderWindow.h:87
vtkOpenGLContextBufferId::GetPickedItem
virtual vtkIdType GetPickedItem(int x, int y)
Return item under abscissa x and ordinate y.