SkSVGFeImage Class Reference

#include <SkSVGFeImage.h>

Inheritance diagram for SkSVGFeImage:

Static Public Member Functions
static sk_sp< SkSVGFeImage >	Make ()
Static Public Member Functions inherited from SkSVGFe
static bool	IsFilterEffect (const sk_sp< SkSVGNode > &node)

Protected Member Functions
bool	parseAndSetAttribute (const char *, const char *) override
sk_sp< SkImageFilter >	onMakeImageFilter (const SkSVGRenderContext &, const SkSVGFilterContext &) const override
std::vector< SkSVGFeInputType >	getInputs () const override
Protected Member Functions inherited from SkSVGFe
	SkSVGFe (SkSVGTag t)
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
Public Member Functions inherited from SkSVGFe
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 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 SkSVGFeImage.h.

Member Function Documentation

getInputs()

std::vector< SkSVGFeInputType > SkSVGFeImage::getInputs ( ) const

inlineoverrideprotectedvirtual

Implements SkSVGFe.

Definition at line 27 of file SkSVGFeImage.h.

{ return {}; }

Make()

static sk_sp< SkSVGFeImage > SkSVGFeImage::Make ( )

inlinestatic

Definition at line 16 of file SkSVGFeImage.h.

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

onMakeImageFilter()

sk_sp< SkImageFilter > SkSVGFeImage::onMakeImageFilter ( const SkSVGRenderContext &  ctx, const SkSVGFilterContext &  fctx  ) const

overrideprotectedvirtual

Implements SkSVGFe.

Definition at line 23 of file SkSVGFeImage.cpp.

                                                                                           {
    // Load image and map viewbox (image bounds) to viewport (filter effects subregion).
    const SkRect viewport = this->resolveFilterSubregion(ctx, fctx);
    const auto imgInfo =
            SkSVGImage::LoadImage(ctx.resourceProvider(), fHref, viewport, fPreserveAspectRatio);
    if (!imgInfo.fImage) {
        return nullptr;
    }
 
    // Create the image filter mapped according to aspect ratio
    const SkRect srcRect = SkRect::Make(imgInfo.fImage->bounds());
    const SkRect& dstRect = imgInfo.fDst;
    // TODO: image-rendering property
    auto imgfilt = SkImageFilters::Image(imgInfo.fImage, srcRect, dstRect,
                                         SkSamplingOptions(SkFilterMode::kLinear,
                                                           SkMipmapMode::kNearest));
 
    // Aspect ratio mapping may end up drawing content outside of the filter effects region,
    // so perform an explicit crop.
    return SkImageFilters::Merge(&imgfilt, 1, fctx.filterEffectsRegion());
}

parseAndSetAttribute()

bool SkSVGFeImage::parseAndSetAttribute ( const char *  n, const char *  v  )

overrideprotectedvirtual

Reimplemented from SkSVGFe.

Definition at line 16 of file SkSVGFeImage.cpp.

                                                                    {
    return INHERITED::parseAndSetAttribute(n, v) ||
           this->setHref(SkSVGAttributeParser::parse<SkSVGIRI>("xlink:href", n, v)) ||
           this->setPreserveAspectRatio(SkSVGAttributeParser::parse<SkSVGPreserveAspectRatio>(
                   "preserveAspectRatio", n, v));
}

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

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