SkSVGFilter Class Reference

#include <SkSVGFilter.h>

Inheritance diagram for SkSVGFilter:

Public Types
using	INHERITED = SkSVGHiddenContainer

Public Member Functions
void	applyProperties (SkSVGRenderContext *) const
sk_sp< SkImageFilter >	buildFilterDAG (const SkSVGRenderContext &) const
	SVG_ATTR (FilterUnits, SkSVGObjectBoundingBoxUnits, SkSVGObjectBoundingBoxUnits(SkSVGObjectBoundingBoxUnits::Type::kObjectBoundingBox)) SVG_ATTR(PrimitiveUnits
	SkSVGObjectBoundingBoxUnits (SkSVGObjectBoundingBoxUnits::Type::kUserSpaceOnUse)) private
bool	parseAndSetAttribute (const char *, const char *) override
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
virtual void	appendChild (sk_sp< SkSVGNode >)=0
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)
virtual bool	parseAndSetAttribute (const char *name, const char *value)
Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()
virtual	~SkRefCntBase ()
bool	unique () const
void	ref () const
void	unref () const

Static Public Member Functions
static sk_sp< SkSVGFilter >	Make ()

Public Attributes
	SkSVGObjectBoundingBoxUnits

Additional Inherited Members
Protected Member Functions inherited from SkSVGHiddenContainer
	SkSVGHiddenContainer (SkSVGTag t)
void	onRender (const SkSVGRenderContext &) const final
Protected Member Functions inherited from SkSVGContainer
	SkSVGContainer (SkSVGTag)
void	onRender (const SkSVGRenderContext &) const override
SkPath	onAsPath (const SkSVGRenderContext &) const override
SkRect	onObjectBoundingBox (const SkSVGRenderContext &) const override
bool	hasChildren () const final
template<typename NodeType , typename Func >
void	forEachChild (Func func) const
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	onPrepareToRender (SkSVGRenderContext *) const
virtual void	onRender (const SkSVGRenderContext &) const =0
virtual bool	onAsPaint (const SkSVGRenderContext &, SkPaint *) const
virtual SkPath	onAsPath (const SkSVGRenderContext &) const =0
virtual void	onSetAttribute (SkSVGAttribute, const SkSVGValue &)
virtual bool	hasChildren () const
virtual SkRect	onObjectBoundingBox (const SkSVGRenderContext &) const
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 14 of file SkSVGFilter.h.

Member Typedef Documentation

INHERITED

using SkSVGFilter::INHERITED = SkSVGHiddenContainer

Definition at line 39 of file SkSVGFilter.h.

Member Function Documentation

applyProperties()

void SkSVGFilter::applyProperties

(

SkSVGRenderContext *

ctx

)

const

Propagates any inherited presentation attributes in the given context.

Definition at line 28 of file SkSVGFilter.cpp.

{ this->onPrepareToRender(ctx); }

buildFilterDAG()

sk_sp< SkImageFilter > SkSVGFilter::buildFilterDAG

(

const SkSVGRenderContext &

ctx

)

const

Definition at line 30 of file SkSVGFilter.cpp.

                                                                                    {
    sk_sp<SkImageFilter> filter;
    SkSVGFilterContext fctx(ctx.resolveOBBRect(fX, fY, fWidth, fHeight, fFilterUnits),
                            fPrimitiveUnits);
    SkSVGRenderContext localCtx(ctx);
    this->applyProperties(&localCtx);
    SkSVGColorspace cs = SkSVGColorspace::kSRGB;
    for (const auto& child : fChildren) {
        if (!SkSVGFe::IsFilterEffect(child)) {
            continue;
        }
 
        const auto& feNode = static_cast<const SkSVGFe&>(*child);
        const auto& feResultType = feNode.getResult();
 
        // Propagate any inherited properties that may impact filter effect behavior (e.g.
        // color-interpolation-filters). We call this explicitly here because the SkSVGFe
        // nodes do not participate in the normal onRender path, which is when property
        // propagation currently occurs.
        SkSVGRenderContext localChildCtx(localCtx);
        feNode.applyProperties(&localChildCtx);
 
        const SkRect filterSubregion = feNode.resolveFilterSubregion(localChildCtx, fctx);
        cs = feNode.resolveColorspace(localChildCtx, fctx);
        filter = feNode.makeImageFilter(localChildCtx, fctx);
 
        if (!feResultType.isEmpty()) {
            fctx.registerResult(feResultType, filter, filterSubregion, cs);
        }
 
        // Unspecified 'in' and 'in2' inputs implicitly resolve to the previous filter's result.
        fctx.setPreviousResult(filter, filterSubregion, cs);
    }
 
    // Convert to final destination colorspace
    if (cs != SkSVGColorspace::kSRGB) {
        filter = SkImageFilters::ColorFilter(SkColorFilters::LinearToSRGBGamma(), filter);
    }
 
    return filter;
}

Make()

static sk_sp< SkSVGFilter > SkSVGFilter::Make ( )

inlinestatic

Definition at line 16 of file SkSVGFilter.h.

{ return sk_sp<SkSVGFilter>(new SkSVGFilter()); }

parseAndSetAttribute()

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

overridevirtual

Reimplemented from SkSVGNode.

Definition at line 16 of file SkSVGFilter.cpp.

                                                                          {
    return INHERITED::parseAndSetAttribute(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)) ||
           this->setFilterUnits(SkSVGAttributeParser::parse<SkSVGObjectBoundingBoxUnits>(
                   "filterUnits", name, value)) ||
           this->setPrimitiveUnits(SkSVGAttributeParser::parse<SkSVGObjectBoundingBoxUnits>(
                   "primitiveUnits", name, value));
}

SkSVGObjectBoundingBoxUnits()

SkSVGFilter::SkSVGObjectBoundingBoxUnits ( SkSVGObjectBoundingBoxUnits::Type::kUserSpaceOnUse  )

inline

Definition at line 32 of file SkSVGFilter.h.

       :
    SkSVGFilter() : INHERITED(SkSVGTag::kFilter) {}

SVG_ATTR()

SkSVGFilter::SVG_ATTR	(	FilterUnits	,
		SkSVGObjectBoundingBoxUnits	,
		SkSVGObjectBoundingBoxUnits(SkSVGObjectBoundingBoxUnits::Type::kObjectBoundingBox)
	)

Member Data Documentation

SkSVGObjectBoundingBoxUnits

SkSVGFilter::SkSVGObjectBoundingBoxUnits

Definition at line 31 of file SkSVGFilter.h.

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

• third_party/skia/modules/svg/include/SkSVGFilter.h
• third_party/skia/modules/svg/src/SkSVGFilter.cpp