#include <SkSVGImage.h>

Inheritance diagram for SkSVGImage:

Classes
struct	ImageInfo

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

bool	onPrepareToRender (SkSVGRenderContext *) const override

void	onRender (const SkSVGRenderContext &) const override

SkPath	onAsPath (const SkSVGRenderContext &) const override

SkRect	onObjectBoundingBox (const SkSVGRenderContext &) const 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< SkSVGImage >	Make ()

static ImageInfo	LoadImage (const sk_sp< skresources::ResourceProvider > &, const SkSVGIRI &, const SkRect &, SkSVGPreserveAspectRatio)

Protected Member Functions
bool	parseAndSetAttribute (const char , const char ) override

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

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

Detailed Description

Definition at line 18 of file SkSVGImage.h.

Member Function Documentation

◆ appendChild()

void SkSVGImage::appendChild ( sk_sp< SkSVGNode > )

inlineoverridevirtual

Implements SkSVGNode.

Definition at line 24 of file SkSVGImage.h.

                                                {
        SkDebugf("cannot append child nodes to this element.\n");
    }

◆ LoadImage()

SkSVGImage::ImageInfo SkSVGImage::LoadImage	(	const sk_sp< skresources::ResourceProvider > &	rp,
		const SkSVGIRI &	iri,
		const SkRect &	viewPort,
		SkSVGPreserveAspectRatio	par
	)

static

Definition at line 57 of file SkSVGImage.cpp.

                                                                          {
    SkASSERT(rp);
 
    // TODO: svg sources
    sk_sp<SkImage> image = ::LoadImage(rp, iri);
    if (!image) {
        return {};
    }
 
    // Per spec: raster content has implicit viewbox of '0 0 width height'.
    const SkRect viewBox = SkRect::Make(image->bounds());
 
    // Map and place at x, y specified by viewport
    const SkMatrix m = ComputeViewboxMatrix(viewBox, viewPort, par);
    const SkRect dst = m.mapRect(viewBox).makeOffset(viewPort.fLeft, viewPort.fTop);
 
    return {std::move(image), dst};
}

◆ Make()

static sk_sp< SkSVGImage > SkSVGImage::Make ( )

inlinestatic

Definition at line 20 of file SkSVGImage.h.

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

◆ onAsPath()

SkPath SkSVGImage::onAsPath ( const SkSVGRenderContext & ) const

overridevirtual

Implements SkSVGNode.

Definition at line 95 of file SkSVGImage.cpp.

95{ return {}; }

◆ onObjectBoundingBox()

SkRect SkSVGImage::onObjectBoundingBox ( const SkSVGRenderContext & ctx ) const

overridevirtual

Reimplemented from SkSVGNode.

Definition at line 97 of file SkSVGImage.cpp.

                                                                          {
    const SkSVGLengthContext& lctx = ctx.lengthContext();
    return lctx.resolveRect(fX, fY, fWidth, fHeight);
}

◆ onPrepareToRender()

bool SkSVGImage::onPrepareToRender ( SkSVGRenderContext * ctx ) const

overridevirtual

Reimplemented from SkSVGNode.

Definition at line 27 of file SkSVGImage.cpp.

                                                                {
    // Width or height of 0 disables rendering per spec:
    // https://www.w3.org/TR/SVG11/struct.html#ImageElement
    return !fHref.iri().isEmpty() && fWidth.value() > 0 && fHeight.value() > 0 &&
           INHERITED::onPrepareToRender(ctx);
}

◆ onRender()

void SkSVGImage::onRender ( const SkSVGRenderContext & ctx ) const

overridevirtual

Implements SkSVGNode.

Definition at line 79 of file SkSVGImage.cpp.

                                                             {
    // Per spec: x, w, width, height attributes establish the new viewport.
    const SkSVGLengthContext& lctx = ctx.lengthContext();
    const SkRect viewPort = lctx.resolveRect(fX, fY, fWidth, fHeight);
 
    const auto imgInfo = LoadImage(ctx.resourceProvider(), fHref, viewPort, fPreserveAspectRatio);
    if (!imgInfo.fImage) {
        SkDebugf("can't render image: load image failed\n");
        return;
    }
 
    // TODO: image-rendering property
    ctx.canvas()->drawImageRect(
            imgInfo.fImage, imgInfo.fDst, SkSamplingOptions(SkFilterMode::kLinear));
}

◆ parseAndSetAttribute()

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

overrideprotectedvirtual

Reimplemented from SkSVGNode.

Definition at line 16 of file SkSVGImage.cpp.

                                                                  {
    return INHERITED::parseAndSetAttribute(n, v) ||
           this->setX(SkSVGAttributeParser::parse<SkSVGLength>("x", n, v)) ||
           this->setY(SkSVGAttributeParser::parse<SkSVGLength>("y", n, v)) ||
           this->setWidth(SkSVGAttributeParser::parse<SkSVGLength>("width", n, v)) ||
           this->setHeight(SkSVGAttributeParser::parse<SkSVGLength>("height", n, v)) ||
           this->setHref(SkSVGAttributeParser::parse<SkSVGIRI>("xlink:href", n, v)) ||
           this->setPreserveAspectRatio(SkSVGAttributeParser::parse<SkSVGPreserveAspectRatio>(
                   "preserveAspectRatio", n, v));
}

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

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

Classes

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ appendChild()

◆ LoadImage()

◆ Make()

◆ onAsPath()

◆ onObjectBoundingBox()

◆ onPrepareToRender()

◆ onRender()

◆ parseAndSetAttribute()