VTK
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 "vtkRenderingContextOpenGL2Module.h" // For export macro
30
33
34class VTKRENDERINGCONTEXTOPENGL2_EXPORT vtkOpenGLContextBufferId : public vtkAbstractContextBufferId
35{
36public:
38 virtual void PrintSelf(ostream &os, vtkIndent indent);
39
44
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
95protected:
98
99 vtkOpenGLRenderWindow *Context;
100 vtkTextureObject *Texture;
101
102private:
103 vtkOpenGLContextBufferId(const vtkOpenGLContextBufferId &) VTK_DELETE_FUNCTION;
104 void operator=(const vtkOpenGLContextBufferId &) VTK_DELETE_FUNCTION;
105};
106
107#endif // #ifndef vtkOpenGLContextBufferId_h
2D array of ids, used for picking.
a simple class to control print indentation
Definition: vtkIndent.h:40
2D array of ids stored in VRAM.
virtual ~vtkOpenGLContextBufferId()
virtual vtkIdType GetPickedItem(int x, int y)
Return item under abscissa x and ordinate y.
virtual bool IsSupported()
Returns if the context supports the required extensions.
static vtkOpenGLContextBufferId * New()
Creates a 2D Painter object.
virtual void SetContext(vtkRenderWindow *context)
Set/Get the OpenGL context owning the texture object resource.
virtual void Allocate()
Allocate the memory for at least Width*Height elements.
virtual void ReleaseGraphicsResources()
Release any graphics resources that are being consumed by this object.
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...
virtual bool IsAllocated() const
Tell if the buffer has been allocated.
virtual void PrintSelf(ostream &os, vtkIndent indent)
Methods invoked by print to print information about the object including superclasses.
virtual vtkRenderWindow * GetContext()
OpenGL rendering window.
create a window for renderers to draw into
abstracts an OpenGL texture object.
int vtkIdType
Definition: vtkType.h:287