Renders labels with Qt. More...

#include <vtkQtLabelRenderStrategy.h>

Inheritance diagram for vtkQtLabelRenderStrategy:

Collaboration diagram for vtkQtLabelRenderStrategy:

Classes
class	Internals

Public Types
typedef vtkLabelRenderStrategy	Superclass

Public Types inherited from vtkLabelRenderStrategy
typedef vtkObject	Superclass

Public Member Functions
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

vtkQtLabelRenderStrategy *	NewInstance () const

void	ComputeLabelBounds (vtkTextProperty *tprop, vtkStdString label, double bds[4]) override
	Compute the bounds of a label. More...

void	ComputeLabelBounds (vtkTextProperty *tprop, vtkUnicodeString label, double bds[4]) override

void	StartFrame () override
	Start a rendering frame. More...

void	EndFrame () override
	End a rendering frame. More...

void	ReleaseGraphicsResources (vtkWindow *window) override
	Release any graphics resources that are being consumed by this strategy. More...


void	RenderLabel (int x[2], vtkTextProperty *tprop, vtkStdString label) override
	Render a label at a location in world coordinates. More...

void	RenderLabel (int x[2], vtkTextProperty *tprop, vtkStdString label, int maxWidth) override
	Render a label at a location in world coordinates. More...

void	RenderLabel (int x[2], vtkTextProperty *tprop, vtkUnicodeString label) override
	Render a label at a location in world coordinates. More...

void	RenderLabel (int x[2], vtkTextProperty *tprop, vtkUnicodeString label, int maxWidth) override
	Render a label at a location in world coordinates. More...

Public Member Functions inherited from vtkLabelRenderStrategy
vtkLabelRenderStrategy *	NewInstance () const

virtual bool	SupportsRotation ()
	Whether the text rendering strategy supports rotation. More...

virtual bool	SupportsBoundedSize ()
	Whether the text rendering strategy supports bounded size. More...

virtual void	RenderLabel (int x[2], vtkTextProperty *tprop, vtkUnicodeString label, int vtkNotUsed(maxWidth))

virtual void	SetRenderer (vtkRenderer *ren)
	Set the renderer associated with this strategy. More...

virtual vtkRenderer *	GetRenderer ()
	Set the renderer associated with this strategy. More...

virtual void	SetDefaultTextProperty (vtkTextProperty *tprop)
	Set the default text property for the strategy. More...

virtual vtkTextProperty *	GetDefaultTextProperty ()
	Set the default text property for the strategy. More...

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

bool	GetDebug ()
	Get the value of the debug flag. More...

void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...

virtual void	Modified ()
	Update the modification time for this object. More...

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method. More...

int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...

int	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not. More...

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string. More...

virtual void	Delete ()
	Delete a VTK object. More...

virtual void	FastDelete ()
	Delete a reference to this object. More...

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream. More...

virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object). More...

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object). More...

int	GetReferenceCount ()
	Return the current reference count of this object. More...

void	SetReferenceCount (int)
	Sets the reference count. More...

void	PrintRevisions (ostream &)
	Legacy. More...

virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

Static Public Member Functions
static vtkTypeBool	IsTypeOf (const char *type)

static vtkQtLabelRenderStrategy *	SafeDownCast (vtkObjectBase *o)

static vtkQtLabelRenderStrategy *	New ()

Static Public Member Functions inherited from vtkLabelRenderStrategy
static vtkTypeBool	IsTypeOf (const char *type)

static vtkLabelRenderStrategy *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...

static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static int	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class. More...

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkQtLabelRenderStrategy ()

	~vtkQtLabelRenderStrategy () override

Protected Member Functions inherited from vtkLabelRenderStrategy
	vtkLabelRenderStrategy ()

	~vtkLabelRenderStrategy () override

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events. More...

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events. More...

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
Internals *	Implementation

vtkQImageToImageSource *	QImageToImage

vtkPlaneSource *	PlaneSource

vtkTextureMapToPlane *	TextureMapToPlane

vtkTexture *	Texture

vtkPolyDataMapper2D *	Mapper

vtkTexturedActor2D *	Actor

bool	AntialiasText

Protected Attributes inherited from vtkLabelRenderStrategy
vtkRenderer *	Renderer

vtkTextProperty *	DefaultTextProperty

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

Renders labels with Qt.

This class uses Qt to render labels and compute sizes. The labels are rendered to a QImage, then EndFrame() converts that image to a vtkImageData and textures the image onto a quad spanning the render area.