2D array of ids stored in VRAM. More...

#include <vtkOpenGLContextBufferId.h>

Inheritance diagram for vtkOpenGLContextBufferId:

Collaboration diagram for vtkOpenGLContextBufferId:

Public Types
typedef vtkAbstractContextBufferId	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkOpenGLContextBufferId *	NewInstance () const
virtual void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	ReleaseGraphicsResources ()
bool	IsSupported ()
virtual void	Allocate ()
virtual bool	IsAllocated () const
virtual vtkIdType	GetPickedItem (int x, int y)

void	SetContext (vtkOpenGLRenderWindow *context)
vtkOpenGLRenderWindow *	GetContext ()

virtual void	SetValues (int srcXmin, int srcYmin)
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkOpenGLContextBufferId *	SafeDownCast (vtkObjectBase *o)
static vtkOpenGLContextBufferId *	New ()
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkOpenGLContextBufferId ()
virtual	~vtkOpenGLContextBufferId ()
Protected Attributes
vtkOpenGLRenderWindow *	Context
vtkTextureObject *	Texture

Detailed Description

2D array of ids stored in VRAM.

An 2D array where each element is the id of an entity drawn at the given pixel.

Definition at line 33 of file vtkOpenGLContextBufferId.h.

Member Typedef Documentation

typedef vtkAbstractContextBufferId vtkOpenGLContextBufferId::Superclass

Reimplemented from vtkAbstractContextBufferId.

Definition at line 36 of file vtkOpenGLContextBufferId.h.

Constructor & Destructor Documentation

vtkOpenGLContextBufferId::vtkOpenGLContextBufferId ( ) [protected]

virtual vtkOpenGLContextBufferId::~vtkOpenGLContextBufferId ( ) [protected, virtual]

Member Function Documentation

static int vtkOpenGLContextBufferId::IsTypeOf ( const char * name ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkAbstractContextBufferId.

virtual int vtkOpenGLContextBufferId::IsA ( const char * name ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkAbstractContextBufferId.

static vtkOpenGLContextBufferId* vtkOpenGLContextBufferId::SafeDownCast ( vtkObjectBase * o ) [static]

Reimplemented from vtkAbstractContextBufferId.

virtual vtkObjectBase* vtkOpenGLContextBufferId::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkAbstractContextBufferId.

vtkOpenGLContextBufferId* vtkOpenGLContextBufferId::NewInstance ( ) const

Reimplemented from vtkAbstractContextBufferId.

virtual void vtkOpenGLContextBufferId::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)		`[virtual]`

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkAbstractContextBufferId.

static vtkOpenGLContextBufferId* vtkOpenGLContextBufferId::New ( ) [static]

Creates a 2D Painter object.

Reimplemented from vtkObject.

virtual void vtkOpenGLContextBufferId::ReleaseGraphicsResources ( ) [virtual]

Release any graphics resources that are being consumed by this object.

Reimplemented from vtkAbstractContextBufferId.

void vtkOpenGLContextBufferId::SetContext ( vtkOpenGLRenderWindow * context )

Set/Get the OpenGL context owning the texture object resource.

vtkOpenGLRenderWindow* vtkOpenGLContextBufferId::GetContext ( )

Set/Get the OpenGL context owning the texture object resource.

bool vtkOpenGLContextBufferId::IsSupported ( )

Returns if the context supports the required extensions.

Precondition:: context_is_set: this->GetContext()!=0

virtual void vtkOpenGLContextBufferId::Allocate ( ) [virtual]

Allocate the memory for at least Width*Height elements.

Precondition:: positive_width: GetWidth()>0; positive_height: GetHeight()>0; context_is_set: this->GetContext()!=0

Implements vtkAbstractContextBufferId.

virtual bool vtkOpenGLContextBufferId::IsAllocated ( ) const [virtual]

Tell if the buffer has been allocated.

Implements vtkAbstractContextBufferId.

virtual void vtkOpenGLContextBufferId::SetValues	(	int	srcXmin,
		int	srcYmin
	)		`[virtual]`

Copy the contents of the current read buffer to the internal texture starting at lower left corner of the framebuffer (srcXmin,srcYmin).

Precondition:: is_allocated: this->IsAllocated()

Implements vtkAbstractContextBufferId.

virtual vtkIdType vtkOpenGLContextBufferId::GetPickedItem	(	int	x,
		int	y
	)		`[virtual]`

Return item under abscissa x and ordinate y. Abscissa go from left to right. Ordinate go from bottom to top. The return value is -1 if there is no item.