FSlateSdfGeneratorImpl Class Reference

Inheritance diagram for FSlateSdfGeneratorImpl:

Public Member Functions
	FSlateSdfGeneratorImpl ()
	~FSlateSdfGeneratorImpl ()
virtual ERequestResponse	Spawn (const FRequestDescriptor &InRequest, FRequestOutputInfo &OutCharInfo) override
virtual ERequestResponse	SpawnWithPlaceholder (const FRequestDescriptor &InRequest, FRequestOutputInfo &OutCharInfo, TArray< uint8 > &OutRawPixels) override
virtual ERequestResponse	Respawn (const FRequestDescriptor &InRequest, const FRequestOutputInfo &InCharInfo) override
virtual ERequestResponse	MakePlaceholder (const FRequestDescriptor &InRequest, FRequestOutputInfo &OutCharInfo, TArray< uint8 > &OutRawPixels) override
virtual void	Update (const FForEachRequestDoneCallback &InEnumerator) override
virtual void	Flush () override
Public Member Functions inherited from FSlateSdfGenerator
virtual	~FSlateSdfGenerator ()

Additional Inherited Members
Public Types inherited from FSlateSdfGenerator
enum class	ERequestResponse {   SUCCESS = 0 , SDF_UNAVAILABLE , BUSY , PLACEHOLDER_ONLY ,   BAD_REQUEST }
enum class	ESdfType { Simple , Perpendicular , MultichannelAndSimple }
using	Ptr = TUniquePtr< FSlateSdfGenerator >
using	FForEachRequestDoneCallback = TFunctionRef< void(const FRequestDescriptor, TArray< uint8 >)>
Static Public Member Functions inherited from FSlateSdfGenerator
static Ptr	create ()
Protected Member Functions inherited from FSlateSdfGenerator
	FSlateSdfGenerator ()

Constructor & Destructor Documentation

FSlateSdfGeneratorImpl()

FSlateSdfGeneratorImpl::FSlateSdfGeneratorImpl

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~FSlateSdfGeneratorImpl()

FSlateSdfGeneratorImpl::~FSlateSdfGeneratorImpl

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Member Function Documentation

Flush()

void FSlateSdfGeneratorImpl::Flush ( )

overridevirtual

Flushes all started tasks.

Implements FSlateSdfGenerator.

MakePlaceholder()

FSlateSdfGenerator::ERequestResponse FSlateSdfGeneratorImpl::MakePlaceholder ( const FRequestDescriptor &  InRequest, FRequestOutputInfo &  OutCharInfo, TArray< uint8 > &  OutRawPixels  )

overridevirtual

Only generates a placeholder-quality signed distance field immediately into OutRawPixels without spawning.

Implements FSlateSdfGenerator.

Respawn()

FSlateSdfGenerator::ERequestResponse FSlateSdfGeneratorImpl::Respawn ( const FRequestDescriptor &  InRequest, const FRequestOutputInfo &  InCharInfo  )

overridevirtual

Attempts to start generating again if previous attempt failed but produced a placeholder, whose FRequestOutputInfo must match.

Implements FSlateSdfGenerator.

Spawn()

FSlateSdfGenerator::ERequestResponse FSlateSdfGeneratorImpl::Spawn ( const FRequestDescriptor &  InRequest, FRequestOutputInfo &  OutCharInfo  )

overridevirtual

Starts generating a distance field for the requested glyph.

Implements FSlateSdfGenerator.

SpawnWithPlaceholder()

FSlateSdfGenerator::ERequestResponse FSlateSdfGeneratorImpl::SpawnWithPlaceholder ( const FRequestDescriptor &  InRequest, FRequestOutputInfo &  OutCharInfo, TArray< uint8 > &  OutRawPixels  )

overridevirtual

Starts generating a distance field and immediately provides an approximate distance field placeholder.

Implements FSlateSdfGenerator.

Update()

void FSlateSdfGeneratorImpl::Update ( const FForEachRequestDoneCallback &  InEnumerator )

overridevirtual

Checks for finished tasks and processes each of them by calling InEnumerator.

Implements FSlateSdfGenerator.

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

• Engine/Source/Runtime/SlateCore/Private/Fonts/SlateSdfGenerator.cpp