#include <SkSVGFe.h>

Inheritance diagram for SkSVGFe:

Public Member Functions
sk_sp< SkImageFilter >	makeImageFilter (const SkSVGRenderContext &ctx, const SkSVGFilterContext &fctx) const

SkRect	resolveFilterSubregion (const SkSVGRenderContext &, const SkSVGFilterContext &) const

virtual SkSVGColorspace	resolveColorspace (const SkSVGRenderContext &, const SkSVGFilterContext &) const

void	applyProperties (SkSVGRenderContext *) const

Public Member Functions inherited from SkSVGContainer
void	appendChild (sk_sp< SkSVGNode >) override

Public Member Functions inherited from SkSVGTransformableNode
void	setTransform (const SkSVGTransformType &t)

Public Member Functions inherited from SkSVGNode
	~SkSVGNode () override

SkSVGTag	tag () const

void	render (const SkSVGRenderContext &) const

bool	asPaint (const SkSVGRenderContext &, SkPaint *) const

SkPath	asPath (const SkSVGRenderContext &) const

SkRect	objectBoundingBox (const SkSVGRenderContext &) const

void	setAttribute (SkSVGAttribute, const SkSVGValue &)

bool	setAttribute (const char attributeName, const char attributeValue)

Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()

virtual	~SkRefCntBase ()

bool	unique () const

void	ref () const

void	unref () const

Static Public Member Functions
static bool	IsFilterEffect (const sk_sp< SkSVGNode > &node)

Protected Member Functions
	SkSVGFe (SkSVGTag t)

virtual sk_sp< SkImageFilter >	onMakeImageFilter (const SkSVGRenderContext &, const SkSVGFilterContext &) const =0

virtual std::vector< SkSVGFeInputType >	getInputs () const =0

bool	parseAndSetAttribute (const char , const char ) override

Protected Member Functions inherited from SkSVGHiddenContainer
	SkSVGHiddenContainer (SkSVGTag t)

void	onRender (const SkSVGRenderContext &) const final

Protected Member Functions inherited from SkSVGContainer
	SkSVGContainer (SkSVGTag)

SkPath	onAsPath (const SkSVGRenderContext &) const override

SkRect	onObjectBoundingBox (const SkSVGRenderContext &) const override

bool	hasChildren () const final

Protected Member Functions inherited from SkSVGTransformableNode
	SkSVGTransformableNode (SkSVGTag)

bool	onPrepareToRender (SkSVGRenderContext *) const override

void	onSetAttribute (SkSVGAttribute, const SkSVGValue &) override

void	mapToParent (SkPath *) const

void	mapToParent (SkRect *) const

Protected Member Functions inherited from SkSVGNode
	SkSVGNode (SkSVGTag)

virtual bool	onAsPaint (const SkSVGRenderContext &, SkPaint *) const

Additional Inherited Members
Static Protected Member Functions inherited from SkSVGNode
static SkMatrix	ComputeViewboxMatrix (const SkRect &, const SkRect &, SkSVGPreserveAspectRatio)

Protected Attributes inherited from SkSVGContainer
skia_private::STArray< 1, sk_sp< SkSVGNode >, true >	fChildren

Detailed Description

Definition at line 18 of file SkSVGFe.h.

Constructor & Destructor Documentation

◆ SkSVGFe()

SkSVGFe::SkSVGFe ( SkSVGTag t )

inlineexplicitprotected

Definition at line 65 of file SkSVGFe.h.

65: INHERITED(t) {}

Member Function Documentation

◆ applyProperties()

void SkSVGFe::applyProperties ( SkSVGRenderContext * ctx ) const

Propagates any inherited presentation attributes in the given context.

Definition at line 91 of file SkSVGFe.cpp.

91{ this->onPrepareToRender(ctx); }

SkSVGTransformableNode::onPrepareToRender

bool onPrepareToRender(SkSVGRenderContext *) const override

Definition SkSVGTransformableNode.cpp:18

◆ getInputs()

virtual std::vector< SkSVGFeInputType > SkSVGFe::getInputs ( ) const

protectedpure virtual

Implemented in SkSVGFeLighting, SkSVGFeBlend, SkSVGFeColorMatrix, SkSVGFeComposite, SkSVGFeDisplacementMap, SkSVGFeFlood, SkSVGFeGaussianBlur, SkSVGFeImage, SkSVGFeMorphology, SkSVGFeOffset, and SkSVGFeTurbulence.

◆ IsFilterEffect()

static bool SkSVGFe::IsFilterEffect ( const sk_sp< SkSVGNode > & node )

inlinestatic

Definition at line 20 of file SkSVGFe.h.

                                                             {
        switch (node->tag()) {
            case SkSVGTag::kFeBlend:
            case SkSVGTag::kFeColorMatrix:
            case SkSVGTag::kFeComposite:
            case SkSVGTag::kFeDiffuseLighting:
            case SkSVGTag::kFeDisplacementMap:
            case SkSVGTag::kFeFlood:
            case SkSVGTag::kFeGaussianBlur:
            case SkSVGTag::kFeImage:
            case SkSVGTag::kFeMorphology:
            case SkSVGTag::kFeOffset:
            case SkSVGTag::kFeSpecularLighting:
            case SkSVGTag::kFeTurbulence:
                return true;
            default:
                return false;
        }
    }

◆ makeImageFilter()

sk_sp< SkImageFilter > SkSVGFe::makeImageFilter	(	const SkSVGRenderContext &	ctx,
		const SkSVGFilterContext &	fctx
	)		const

Definition at line 14 of file SkSVGFe.cpp.

                                                                                    {
    return this->onMakeImageFilter(ctx, fctx);
}

◆ onMakeImageFilter()

virtual sk_sp< SkImageFilter > SkSVGFe::onMakeImageFilter	(	const SkSVGRenderContext &	,
		const SkSVGFilterContext &
	)		const

protectedpure virtual

Implemented in SkSVGFeLighting, SkSVGFeBlend, SkSVGFeColorMatrix, SkSVGFeComposite, SkSVGFeDisplacementMap, SkSVGFeFlood, SkSVGFeGaussianBlur, SkSVGFeImage, SkSVGFeMorphology, and SkSVGFeOffset.

◆ parseAndSetAttribute()

bool SkSVGFe::parseAndSetAttribute	(	const char *	name,
		const char *	value
	)

overrideprotectedvirtual

Reimplemented from SkSVGNode.

Reimplemented in SkSVGFeBlend, SkSVGFeColorMatrix, SkSVGFeComposite, SkSVGFeDisplacementMap, SkSVGFeGaussianBlur, SkSVGFeImage, SkSVGFeLighting, SkSVGFeSpecularLighting, SkSVGFeDiffuseLighting, SkSVGFeMorphology, SkSVGFeOffset, and SkSVGFeTurbulence.

Definition at line 93 of file SkSVGFe.cpp.

                                                                      {
    return INHERITED::parseAndSetAttribute(name, value) ||
           this->setIn(SkSVGAttributeParser::parse<SkSVGFeInputType>("in", name, value)) ||
           this->setResult(SkSVGAttributeParser::parse<SkSVGStringType>("result", name, value)) ||
           this->setX(SkSVGAttributeParser::parse<SkSVGLength>("x", name, value)) ||
           this->setY(SkSVGAttributeParser::parse<SkSVGLength>("y", name, value)) ||
           this->setWidth(SkSVGAttributeParser::parse<SkSVGLength>("width", name, value)) ||
           this->setHeight(SkSVGAttributeParser::parse<SkSVGLength>("height", name, value));
}

◆ resolveColorspace()

SkSVGColorspace SkSVGFe::resolveColorspace	(	const SkSVGRenderContext &	ctx,
		const SkSVGFilterContext &
	)		const

virtual

Resolves the colorspace within which this filter effect should be applied. Spec: https://www.w3.org/TR/SVG11/painting.html#ColorInterpolationProperties 'color-interpolation-filters' property.

Reimplemented in SkSVGFeDisplacementMap.

Definition at line 84 of file SkSVGFe.cpp.

                                                                            {
    constexpr SkSVGColorspace kDefaultCS = SkSVGColorspace::kSRGB;
    const SkSVGColorspace cs = *ctx.presentationContext().fInherited.fColorInterpolationFilters;
    return cs == SkSVGColorspace::kAuto ? kDefaultCS : cs;
}

◆ resolveFilterSubregion()

SkRect SkSVGFe::resolveFilterSubregion	(	const SkSVGRenderContext &	ctx,
		const SkSVGFilterContext &	fctx
	)		const

Definition at line 54 of file SkSVGFe.cpp.

                                                                             {
    // From https://www.w3.org/TR/SVG11/filters.html#FilterPrimitiveSubRegion,
    // the default filter effect subregion is equal to the union of the subregions defined
    // for all "referenced nodes" (filter effect inputs). If there are no inputs, the
    // default subregion is equal to the filter effects region
    // (https://www.w3.org/TR/SVG11/filters.html#FilterEffectsRegion).
    const std::vector<SkSVGFeInputType> inputs = this->getInputs();
    SkRect defaultSubregion;
    if (inputs.empty() || AnyIsStandardInput(fctx, inputs)) {
        defaultSubregion = fctx.filterEffectsRegion();
    } else {
        defaultSubregion = fctx.filterPrimitiveSubregion(inputs[0]);
        for (size_t i = 1; i < inputs.size(); i++) {
            defaultSubregion.join(fctx.filterPrimitiveSubregion(inputs[i]));
        }
    }
 
    // Next resolve the rect specified by the x, y, width, height attributes on this filter effect.
    // If those attributes were given, they override the corresponding attribute of the default
    // filter effect subregion calculated above.
    const SkRect boundaries = this->resolveBoundaries(ctx, fctx);
 
    // Compute and return the fully resolved subregion.
    return SkRect::MakeXYWH(fX.isValid() ? boundaries.fLeft : defaultSubregion.fLeft,
                            fY.isValid() ? boundaries.fTop : defaultSubregion.fTop,
                            fWidth.isValid() ? boundaries.width() : defaultSubregion.width(),
                            fHeight.isValid() ? boundaries.height() : defaultSubregion.height());
}

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

third_party/skia/modules/svg/include/SkSVGFe.h
third_party/skia/modules/svg/src/SkSVGFe.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members