vtkObserverMediator Class Reference

#include <vtkObserverMediator.h>

Inheritance diagram for vtkObserverMediator:

[legend]Collaboration diagram for vtkObserverMediator:

[legend]List of all members.

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Detailed Description

manage contention for cursors and other resources

The vtkObserverMediator is a helper class that manages requests for cursor changes from multiple interactor observers (e.g. widgets). It keeps a list of widgets (and their priorities) and their current requests for cursor shape. It then satisfies requests based on widget priority and the relative importance of the request (e.g., a lower priority widget requesting a particular cursor shape will overrule a higher priority widget requesting a default shape).

See also:

vtkAbstractWidget vtkWidgetRepresentation

Definition at line 40 of file vtkObserverMediator.h.

typedef vtkObject	Superclass
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
static int	IsTypeOf (const char *type)
static vtkObserverMediator *	SafeDownCast (vtkObject *o)
Public Member Functions
int	RequestCursorShape (vtkInteractorObserver *, int cursorShape)
void	RemoveAllCursorShapeRequests (vtkInteractorObserver *)
void	SetInteractor (vtkRenderWindowInteractor *iren)
virtual vtkRenderWindowInteractor *	GetInteractor ()
Static Public Member Functions
static vtkObserverMediator *	New ()
Protected Member Functions
	vtkObserverMediator ()
	~vtkObserverMediator ()
Protected Attributes
vtkRenderWindowInteractor *	Interactor
vtkObserverMap *	ObserverMap
vtkInteractorObserver *	CurrentObserver
int	CurrentCursorShape

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Member Typedef Documentation

typedef vtkObject vtkObserverMediator::Superclass

Standard macros.

Reimplemented from vtkObject.

Definition at line 48 of file vtkObserverMediator.h.

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Constructor & Destructor Documentation

vtkObserverMediator::vtkObserverMediator

(

)

[protected]

vtkObserverMediator::~vtkObserverMediator

(

)

[protected]

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Member Function Documentation

static vtkObserverMediator* vtkObserverMediator::New

(

)

[static]

Instantiate the class.

Reimplemented from vtkObject.

virtual const char* vtkObserverMediator::GetClassName

(

)

[virtual]

Standard macros.

Reimplemented from vtkObject.

static int vtkObserverMediator::IsTypeOf

(

const char *

type

)

[static]

Standard macros.

Reimplemented from vtkObject.

virtual int vtkObserverMediator::IsA

(

const char *

type

)

[virtual]

Standard macros.

Reimplemented from vtkObject.

static vtkObserverMediator* vtkObserverMediator::SafeDownCast

(

vtkObject *

o

)

[static]

Standard macros.

Reimplemented from vtkObject.

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

Standard macros.

Reimplemented from vtkObject.

void vtkObserverMediator::SetInteractor

(

vtkRenderWindowInteractor *

iren

)

Specify the instance of vtkRenderWindow whose cursor shape is to be managed.

virtual vtkRenderWindowInteractor* vtkObserverMediator::GetInteractor

(

)

[virtual]

Specify the instance of vtkRenderWindow whose cursor shape is to be managed.

int vtkObserverMediator::RequestCursorShape	(	vtkInteractorObserver *	,
		int	cursorShape
	)

Method used to request a cursor shape. Note that the shape is specified using one of the integral values determined in vtkRenderWindow.h. The method returns a non-zero value if the shape was successfully changed.

void vtkObserverMediator::RemoveAllCursorShapeRequests

(

vtkInteractorObserver *

)

Remove all requests for cursor shape from a given interactor.

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Member Data Documentation

vtkRenderWindowInteractor* vtkObserverMediator::Interactor [protected]

Definition at line 73 of file vtkObserverMediator.h.

vtkObserverMap* vtkObserverMediator::ObserverMap [protected]

Definition at line 78 of file vtkObserverMediator.h.

vtkInteractorObserver* vtkObserverMediator::CurrentObserver [protected]

Definition at line 81 of file vtkObserverMediator.h.

int vtkObserverMediator::CurrentCursorShape [protected]

Definition at line 82 of file vtkObserverMediator.h.

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The documentation for this class was generated from the following file:

• dox/Rendering/vtkObserverMediator.h

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