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vtkQtLabelRenderStrategy Class Reference

Renders labels with Qt. More...

#include <vtkQtLabelRenderStrategy.h>

Inheritance diagram for vtkQtLabelRenderStrategy:
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Collaboration diagram for vtkQtLabelRenderStrategy:
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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...
 
vtkQtLabelRenderStrategyNewInstance () 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 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
 
void RenderLabel (int x[2], vtkTextProperty *tprop, vtkUnicodeString label) override
 
void RenderLabel (int x[2], vtkTextProperty *tprop, vtkUnicodeString label, int maxWidth) 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...
 
- Public Member Functions inherited from vtkLabelRenderStrategy
vtkLabelRenderStrategyNewInstance () 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 SetRenderer (vtkRenderer *ren)
 Set the renderer associated with this strategy. More...
 
virtual vtkRendererGetRenderer ()
 
virtual void SetDefaultTextProperty (vtkTextProperty *tprop)
 Set the default text property for the strategy. More...
 
virtual vtkTextPropertyGetDefaultTextProperty ()
 
virtual void RenderLabel (int x[2], vtkTextProperty *tprop, vtkUnicodeString label, int vtkNotUsed(maxWidth))
 
- 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...
 
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)
 
vtkCommandGetCommand (unsigned long tag)
 
void RemoveObserver (vtkCommand *)
 
void RemoveObservers (unsigned long event, vtkCommand *)
 
void RemoveObservers (const char *event, vtkCommand *)
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 
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)
 
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)
 
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)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
- 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 PrintHeader (ostream &os, vtkIndent indent)
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 
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...
 

Static Public Member Functions

static vtkTypeBool IsTypeOf (const char *type)
 
static vtkQtLabelRenderStrategySafeDownCast (vtkObjectBase *o)
 
static vtkQtLabelRenderStrategyNew ()
 
- Static Public Member Functions inherited from vtkLabelRenderStrategy
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkLabelRenderStrategySafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 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 ()
 
static void GlobalWarningDisplayOff ()
 
static int GetGlobalWarningDisplay ()
 
- 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 vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () 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 ()
 
- 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

InternalsImplementation
 
vtkQImageToImageSourceQImageToImage
 
vtkPlaneSourcePlaneSource
 
vtkTextureMapToPlaneTextureMapToPlane
 
vtkTextureTexture
 
vtkPolyDataMapper2DMapper
 
vtkTexturedActor2DActor
 
bool AntialiasText
 
- Protected Attributes inherited from vtkLabelRenderStrategy
vtkRendererRenderer
 
vtkTextPropertyDefaultTextProperty
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t > 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.

Definition at line 40 of file vtkQtLabelRenderStrategy.h.

Member Typedef Documentation

◆ Superclass

Definition at line 44 of file vtkQtLabelRenderStrategy.h.

Constructor & Destructor Documentation

◆ vtkQtLabelRenderStrategy()

vtkQtLabelRenderStrategy::vtkQtLabelRenderStrategy ( )
protected

◆ ~vtkQtLabelRenderStrategy()

vtkQtLabelRenderStrategy::~vtkQtLabelRenderStrategy ( )
overrideprotected

Member Function Documentation

◆ PrintSelf()

void vtkQtLabelRenderStrategy::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
overridevirtual

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 vtkLabelRenderStrategy.

◆ IsTypeOf()

static vtkTypeBool vtkQtLabelRenderStrategy::IsTypeOf ( const char *  type)
static

◆ IsA()

virtual vtkTypeBool vtkQtLabelRenderStrategy::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 vtkLabelRenderStrategy.

◆ SafeDownCast()

static vtkQtLabelRenderStrategy* vtkQtLabelRenderStrategy::SafeDownCast ( vtkObjectBase o)
static

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkQtLabelRenderStrategy::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkLabelRenderStrategy.

◆ NewInstance()

vtkQtLabelRenderStrategy* vtkQtLabelRenderStrategy::NewInstance ( ) const

◆ New()

static vtkQtLabelRenderStrategy* vtkQtLabelRenderStrategy::New ( )
static

◆ ComputeLabelBounds() [1/2]

void vtkQtLabelRenderStrategy::ComputeLabelBounds ( vtkTextProperty tprop,
vtkStdString  label,
double  bds[4] 
)
inlineoverridevirtual

Compute the bounds of a label.

Must be performed after the renderer is set.

Reimplemented from vtkLabelRenderStrategy.

Definition at line 50 of file vtkQtLabelRenderStrategy.h.

◆ ComputeLabelBounds() [2/2]

void vtkQtLabelRenderStrategy::ComputeLabelBounds ( vtkTextProperty tprop,
vtkUnicodeString  label,
double  bds[4] 
)
overridevirtual

◆ RenderLabel() [1/4]

void vtkQtLabelRenderStrategy::RenderLabel ( int  x[2],
vtkTextProperty tprop,
vtkStdString  label 
)
inlineoverridevirtual

Render a label at a location in world coordinates.

Must be performed between StartFrame() and EndFrame() calls.

Reimplemented from vtkLabelRenderStrategy.

Definition at line 61 of file vtkQtLabelRenderStrategy.h.

◆ RenderLabel() [2/4]

void vtkQtLabelRenderStrategy::RenderLabel ( int  x[2],
vtkTextProperty tprop,
vtkStdString  label,
int  maxWidth 
)
inlineoverridevirtual

Reimplemented from vtkLabelRenderStrategy.

Definition at line 65 of file vtkQtLabelRenderStrategy.h.

◆ RenderLabel() [3/4]

void vtkQtLabelRenderStrategy::RenderLabel ( int  x[2],
vtkTextProperty tprop,
vtkUnicodeString  label 
)
overridevirtual

◆ RenderLabel() [4/4]

void vtkQtLabelRenderStrategy::RenderLabel ( int  x[2],
vtkTextProperty tprop,
vtkUnicodeString  label,
int  maxWidth 
)
override

◆ StartFrame()

void vtkQtLabelRenderStrategy::StartFrame ( )
overridevirtual

Start a rendering frame.

Renderer must be set.

Reimplemented from vtkLabelRenderStrategy.

◆ EndFrame()

void vtkQtLabelRenderStrategy::EndFrame ( )
overridevirtual

End a rendering frame.

Reimplemented from vtkLabelRenderStrategy.

◆ ReleaseGraphicsResources()

void vtkQtLabelRenderStrategy::ReleaseGraphicsResources ( vtkWindow window)
overridevirtual

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

The parameter window could be used to determine which graphic resources to release.

Reimplemented from vtkLabelRenderStrategy.

Member Data Documentation

◆ Implementation

Internals* vtkQtLabelRenderStrategy::Implementation
protected

Definition at line 94 of file vtkQtLabelRenderStrategy.h.

◆ QImageToImage

vtkQImageToImageSource* vtkQtLabelRenderStrategy::QImageToImage
protected

Definition at line 97 of file vtkQtLabelRenderStrategy.h.

◆ PlaneSource

vtkPlaneSource* vtkQtLabelRenderStrategy::PlaneSource
protected

Definition at line 98 of file vtkQtLabelRenderStrategy.h.

◆ TextureMapToPlane

vtkTextureMapToPlane* vtkQtLabelRenderStrategy::TextureMapToPlane
protected

Definition at line 99 of file vtkQtLabelRenderStrategy.h.

◆ Texture

vtkTexture* vtkQtLabelRenderStrategy::Texture
protected

Definition at line 100 of file vtkQtLabelRenderStrategy.h.

◆ Mapper

vtkPolyDataMapper2D* vtkQtLabelRenderStrategy::Mapper
protected

Definition at line 101 of file vtkQtLabelRenderStrategy.h.

◆ Actor

vtkTexturedActor2D* vtkQtLabelRenderStrategy::Actor
protected

Definition at line 102 of file vtkQtLabelRenderStrategy.h.

◆ AntialiasText

bool vtkQtLabelRenderStrategy::AntialiasText
protected

Definition at line 103 of file vtkQtLabelRenderStrategy.h.


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