flutter::ImageFilter Class Reference

#include <image_filter.h>

Inheritance diagram for flutter::ImageFilter:

Public Member Functions
	~ImageFilter () override
void	initBlur (double sigma_x, double sigma_y, DlTileMode tile_mode)
void	initDilate (double radius_x, double radius_y)
void	initErode (double radius_x, double radius_y)
void	initMatrix (const tonic::Float64List &matrix4, int filter_quality_index)
void	initColorFilter (ColorFilter *colorFilter)
void	initComposeFilter (ImageFilter *outer, ImageFilter *inner)
const std::shared_ptr< const DlImageFilter >	filter () const
Public Member Functions inherited from flutter::RefCountedDartWrappable< ImageFilter >
virtual void	RetainDartWrappableReference () const override
virtual void	ReleaseDartWrappableReference () const override
Public Member Functions inherited from fml::RefCountedThreadSafe< T >
void	Release () const
Public Member Functions inherited from fml::internal::RefCountedThreadSafeBase
void	AddRef () const
bool	HasOneRef () const
void	AssertHasOneRef () const
Public Member Functions inherited from tonic::DartWrappable
	DartWrappable ()
virtual const DartWrapperInfo &	GetDartWrapperInfo () const =0
Dart_Handle	CreateDartWrapper (DartState *dart_state)
void	AssociateWithDartWrapper (Dart_Handle wrappable)
void	ClearDartWrapper ()
Dart_WeakPersistentHandle	dart_wrapper () const

Static Public Member Functions
static void	Create (Dart_Handle wrapper)
static DlImageSampling	SamplingFromIndex (int filterQualityIndex)
static DlFilterMode	FilterModeFromIndex (int index)
static void	RegisterNatives (tonic::DartLibraryNatives *natives)

Additional Inherited Members
Public Types inherited from tonic::DartWrappable
enum	DartNativeFields { kPeerIndex , kNumberOfNativeFields }
Protected Member Functions inherited from fml::RefCountedThreadSafe< T >
	RefCountedThreadSafe ()
	~RefCountedThreadSafe ()
Protected Member Functions inherited from fml::internal::RefCountedThreadSafeBase
	RefCountedThreadSafeBase ()
	~RefCountedThreadSafeBase ()
bool	Release () const
void	Adopt ()
Protected Member Functions inherited from tonic::DartWrappable
virtual	~DartWrappable ()
Static Protected Member Functions inherited from tonic::DartWrappable
static Dart_PersistentHandle	GetTypeForWrapper (tonic::DartState *dart_state, const tonic::DartWrapperInfo &wrapper_info)

Detailed Description

Definition at line 20 of file image_filter.h.

Constructor & Destructor Documentation

~ImageFilter()

flutter::ImageFilter::~ImageFilter ( )

override

Definition at line 52 of file image_filter.cc.

{}

Member Function Documentation

Create()

void flutter::ImageFilter::Create ( Dart_Handle  wrapper )

static

Definition at line 19 of file image_filter.cc.

                                            {
  UIDartState::ThrowIfUIOperationsProhibited();
  auto res = fml::MakeRefCounted<ImageFilter>();
  res->AssociateWithDartWrapper(wrapper);
}

filter()

const std::shared_ptr< const DlImageFilter > flutter::ImageFilter::filter ( ) const

inline

Definition at line 38 of file image_filter.h.

{ return filter_; }

FilterModeFromIndex()

DlFilterMode flutter::ImageFilter::FilterModeFromIndex ( int  index )

static

Definition at line 43 of file image_filter.cc.

                                                                    {
  if (filterQualityIndex <= 0) {
    return DlFilterMode::kNearest;
  }
  return DlFilterMode::kLinear;
}

initBlur()

void flutter::ImageFilter::initBlur	(	double	sigma_x,
		double	sigma_y,
		DlTileMode	tile_mode
	)

Definition at line 54 of file image_filter.cc.

                                                 {
  filter_ = DlBlurImageFilter::Make(SafeNarrow(sigma_x), SafeNarrow(sigma_y),
                                    tile_mode);
}

initColorFilter()

void flutter::ImageFilter::initColorFilter

(

ColorFilter *

colorFilter

)

Definition at line 77 of file image_filter.cc.

                                                          {
  FML_DCHECK(colorFilter);
  filter_ = DlColorFilterImageFilter::Make(colorFilter->filter());
}

initComposeFilter()

void flutter::ImageFilter::initComposeFilter	(	ImageFilter *	outer,
		ImageFilter *	inner
	)

Definition at line 82 of file image_filter.cc.

                                                                          {
  FML_DCHECK(outer && inner);
  filter_ = DlComposeImageFilter::Make(outer->filter(), inner->filter());
}

initDilate()

void flutter::ImageFilter::initDilate	(	double	radius_x,
		double	radius_y
	)

Definition at line 61 of file image_filter.cc.

                                                             {
  filter_ =
      DlDilateImageFilter::Make(SafeNarrow(radius_x), SafeNarrow(radius_y));
}

initErode()

void flutter::ImageFilter::initErode	(	double	radius_x,
		double	radius_y
	)

Definition at line 66 of file image_filter.cc.

                                                            {
  filter_ =
      DlErodeImageFilter::Make(SafeNarrow(radius_x), SafeNarrow(radius_y));
}

initMatrix()

void flutter::ImageFilter::initMatrix	(	const tonic::Float64List &	matrix4,
		int	filter_quality_index
	)

Definition at line 71 of file image_filter.cc.

                                                     {
  auto sampling = ImageFilter::SamplingFromIndex(filterQualityIndex);
  filter_ = DlMatrixImageFilter::Make(ToSkMatrix(matrix4), sampling);
}

RegisterNatives()

static void flutter::ImageFilter::RegisterNatives ( tonic::DartLibraryNatives *  natives )

static

SamplingFromIndex()

DlImageSampling flutter::ImageFilter::SamplingFromIndex ( int  filterQualityIndex )

static

Definition at line 32 of file image_filter.cc.

                                                                     {
  if (filterQualityIndex < 0) {
    return kFilterQualities.front();
  } else if (static_cast<size_t>(filterQualityIndex) >=
             kFilterQualities.size()) {
    return kFilterQualities.back();
  } else {
    return kFilterQualities[filterQualityIndex];
  }
}

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

• lib/ui/painting/image_filter.h
• lib/ui/painting/image_filter.cc