Default implementation of vtkTextRenderer. More...

#include <vtkMathTextFreeTypeTextRenderer.h>

Inheritance diagram for vtkMathTextFreeTypeTextRenderer:

Collaboration diagram for vtkMathTextFreeTypeTextRenderer:

Public Types
typedef vtkTextRenderer	Superclass

Public Types inherited from vtkTextRenderer
enum	Backend { Default = -1 , Detect = 0 , FreeType , MathText , UserBackend = 16 }
	Available backends. More...

typedef vtkObject	Superclass

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

vtkMathTextFreeTypeTextRenderer *	NewInstance () const

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


bool	FreeTypeIsSupported () override
	Test for availability of various backends.

bool	MathTextIsSupported () override
	Test for availability of various backends.

Public Member Functions inherited from vtkTextRenderer
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkTextRenderer *	NewInstance () const

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

virtual bool	FreeTypeIsSupported ()
	Test for availability of various backends.

virtual bool	MathTextIsSupported ()

void	SetScaleToPowerOfTwo (bool scale)
	Set to true if the graphics implementation requires texture image dimensions to be a power of two.

virtual void	SetDefaultBackend (int)
	The backend to use when none is specified.

virtual int	GetDefaultBackend ()
	The backend to use when none is specified.

virtual int	DetectBackend (const vtkStdString &str)
	Determine the appropriate back end needed to render the given string.

bool	GetBoundingBox (vtkTextProperty *tprop, const vtkStdString &str, int bbox[4], int dpi, int backend=Default)
	Given a text property and a string, get the bounding box {xmin, xmax, ymin, ymax} of the rendered string in pixels.

bool	GetMetrics (vtkTextProperty *tprop, const vtkStdString &str, Metrics &metrics, int dpi, int backend=Default)
	Given a text property and a string, get some metrics for the rendered string.

bool	RenderString (vtkTextProperty tprop, const vtkStdString &str, vtkImageData data, int textDims[2], int dpi, int backend=Default)
	Given a text property and a string, this function initializes the vtkImageData *data and renders it in a vtkImageData.

int	GetConstrainedFontSize (const vtkStdString &str, vtkTextProperty *tprop, int targetWidth, int targetHeight, int dpi, int backend=Default)
	This function returns the font size (in points) and sets the size in tprop that is required to fit the string in the target rectangle.

bool	StringToPath (vtkTextProperty tprop, const vtkStdString &str, vtkPath path, int dpi, int backend=Default)
	Given a text property and a string, this function populates the vtkPath path with the outline of the rendered string.

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

virtual void	DebugOn ()
	Turn debugging output on.

virtual void	DebugOff ()
	Turn debugging output off.

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

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

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

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

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

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)

vtkTypeBool	InvokeEvent (unsigned long event)

vtkTypeBool	InvokeEvent (const char *event)

std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output.

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

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

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

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

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

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

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

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

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.

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.

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.

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

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

virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes.

virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes.

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

virtual std::string	GetObjectDescription () const
	The object description printed in messages and PrintSelf output.

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

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

virtual void	Delete ()
	Delete a VTK object.

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

void	InitializeObjectBase ()

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

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

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

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

void	SetReferenceCount (int)
	Sets the reference count.

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.

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

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

virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses `vtkGarbageCollector` or not.

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

static vtkMathTextFreeTypeTextRenderer *	SafeDownCast (vtkObjectBase *o)

static vtkMathTextFreeTypeTextRenderer *	New ()

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

static vtkTextRenderer *	SafeDownCast (vtkObjectBase *o)

static vtkTextRenderer *	New ()
	This is a singleton pattern New.

static vtkTextRenderer *	GetInstance ()
	Return the singleton instance with no reference counting.

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.

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

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

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

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

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

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.

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

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

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkMathTextFreeTypeTextRenderer ()

	~vtkMathTextFreeTypeTextRenderer () override


bool	GetBoundingBoxInternal (vtkTextProperty *tprop, const vtkStdString &str, int bbox[4], int dpi, int backend) override
	Reimplemented from vtkTextRenderer.

bool	GetMetricsInternal (vtkTextProperty *tprop, const vtkStdString &str, Metrics &metrics, int dpi, int backend) override
	Reimplemented from vtkTextRenderer.

bool	RenderStringInternal (vtkTextProperty tprop, const vtkStdString &str, vtkImageData data, int textDims[2], int dpi, int backend) override
	Reimplemented from vtkTextRenderer.

int	GetConstrainedFontSizeInternal (const vtkStdString &str, vtkTextProperty *tprop, int targetWidth, int targetHeight, int dpi, int backend) override
	Reimplemented from vtkTextRenderer.

bool	StringToPathInternal (vtkTextProperty tprop, const vtkStdString &str, vtkPath path, int dpi, int backend) override
	Reimplemented from vtkTextRenderer.

void	SetScaleToPowerOfTwoInternal (bool scale) override
	Reimplemented from vtkTextRenderer.

Protected Member Functions inherited from vtkTextRenderer
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkTextRenderer ()

	~vtkTextRenderer () override

virtual void	CleanUpFreeTypeEscapes (vtkStdString &str)
	Replace all instances of "\$" with "$".

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.

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

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

virtual void	ObjectFinalize ()

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Additional Inherited Members
Static Protected Member Functions inherited from vtkTextRenderer
static void	SetInstance (vtkTextRenderer *instance)
	Set the singleton instance.

Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Protected Attributes inherited from vtkTextRenderer
vtksys::RegularExpression *	MathTextRegExp

vtksys::RegularExpression *	MathTextRegExp2

vtksys::RegularExpression *	MathTextRegExpColumn

int	DefaultBackend
	The backend to use when none is specified.

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

std::string	ObjectName

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Static Protected Attributes inherited from vtkTextRenderer
static vtkTextRenderer *	Instance
	The singleton instance and the singleton cleanup instance.

static vtkTextRendererCleanup	Cleanup
	The singleton instance and the singleton cleanup instance.

Detailed Description

Default implementation of vtkTextRenderer.

Default implementation of vtkTextRenderer using vtkFreeTypeTools and vtkMathTextUtilities.

Warning: The MathText backend does not currently support UTF16 strings, thus UTF16 strings passed to the MathText renderer will be converted to UTF8.

Definition at line 29 of file vtkMathTextFreeTypeTextRenderer.h.

Member Typedef Documentation

◆ Superclass

typedef vtkTextRenderer vtkMathTextFreeTypeTextRenderer::Superclass

Definition at line 32 of file vtkMathTextFreeTypeTextRenderer.h.

Constructor & Destructor Documentation

◆ vtkMathTextFreeTypeTextRenderer()

vtkMathTextFreeTypeTextRenderer::vtkMathTextFreeTypeTextRenderer ( )

protected

◆ ~vtkMathTextFreeTypeTextRenderer()

vtkMathTextFreeTypeTextRenderer::~vtkMathTextFreeTypeTextRenderer ( )

overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

static

◆ IsA()

virtual vtkTypeBool vtkMathTextFreeTypeTextRenderer::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 vtkTextRenderer.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkMathTextFreeTypeTextRenderer::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkTextRenderer.

◆ NewInstance()

vtkMathTextFreeTypeTextRenderer * vtkMathTextFreeTypeTextRenderer::NewInstance ( ) const

◆ PrintSelf()

void vtkMathTextFreeTypeTextRenderer::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 vtkObjectBase.

◆ New()

static vtkMathTextFreeTypeTextRenderer * vtkMathTextFreeTypeTextRenderer::New ( )

static

◆ FreeTypeIsSupported()

bool vtkMathTextFreeTypeTextRenderer::FreeTypeIsSupported ( )

overridevirtual

Test for availability of various backends.

Reimplemented from vtkTextRenderer.

◆ MathTextIsSupported()

bool vtkMathTextFreeTypeTextRenderer::MathTextIsSupported ( )

overridevirtual

Test for availability of various backends.

Reimplemented from vtkTextRenderer.

◆ GetBoundingBoxInternal()

bool vtkMathTextFreeTypeTextRenderer::GetBoundingBoxInternal	(	vtkTextProperty *	tprop,
		const vtkStdString &	str,
		int	bbox[4],
		int	dpi,
		int	backend
	)

overrideprotectedvirtual

Reimplemented from vtkTextRenderer.

Implements vtkTextRenderer.

◆ GetMetricsInternal()

bool vtkMathTextFreeTypeTextRenderer::GetMetricsInternal	(	vtkTextProperty *	tprop,
		const vtkStdString &	str,
		Metrics &	metrics,
		int	dpi,
		int	backend
	)

overrideprotectedvirtual

Reimplemented from vtkTextRenderer.

Implements vtkTextRenderer.

◆ RenderStringInternal()

bool vtkMathTextFreeTypeTextRenderer::RenderStringInternal	(	vtkTextProperty *	tprop,
		const vtkStdString &	str,
		vtkImageData *	data,
		int	textDims[2],
		int	dpi,
		int	backend
	)

overrideprotectedvirtual

Reimplemented from vtkTextRenderer.

Implements vtkTextRenderer.

◆ GetConstrainedFontSizeInternal()

int vtkMathTextFreeTypeTextRenderer::GetConstrainedFontSizeInternal	(	const vtkStdString &	str,
		vtkTextProperty *	tprop,
		int	targetWidth,
		int	targetHeight,
		int	dpi,
		int	backend
	)

overrideprotectedvirtual

Reimplemented from vtkTextRenderer.

Implements vtkTextRenderer.

◆ StringToPathInternal()

bool vtkMathTextFreeTypeTextRenderer::StringToPathInternal	(	vtkTextProperty *	tprop,
		const vtkStdString &	str,
		vtkPath *	path,
		int	dpi,
		int	backend
	)

overrideprotectedvirtual

Reimplemented from vtkTextRenderer.

Implements vtkTextRenderer.

◆ SetScaleToPowerOfTwoInternal()

void vtkMathTextFreeTypeTextRenderer::SetScaleToPowerOfTwoInternal ( bool scale )

overrideprotectedvirtual

Reimplemented from vtkTextRenderer.

Implements vtkTextRenderer.

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

Rendering/FreeType/vtkMathTextFreeTypeTextRenderer.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkMathTextFreeTypeTextRenderer()

◆ ~vtkMathTextFreeTypeTextRenderer()

Member Function Documentation

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ New()

◆ FreeTypeIsSupported()

◆ MathTextIsSupported()

◆ GetBoundingBoxInternal()

◆ GetMetricsInternal()

◆ RenderStringInternal()

◆ GetConstrainedFontSizeInternal()

◆ StringToPathInternal()

◆ SetScaleToPowerOfTwoInternal()