SkSVGSVG Class Reference

#include <SkSVGSVG.h>

Inheritance diagram for SkSVGSVG:

Public Types
enum class	Type { kRoot , kInner }

Public Member Functions
SkSize	intrinsicSize (const SkSVGLengthContext &) const
void	renderNode (const SkSVGRenderContext &, const SkSVGIRI &iri) 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)
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< SkSVGSVG >	Make (Type t=Type::kInner)

Protected Member Functions
bool	onPrepareToRender (SkSVGRenderContext *) const override
void	onSetAttribute (SkSVGAttribute, const SkSVGValue &) override
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
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 17 of file SkSVGSVG.h.

Member Enumeration Documentation

Type

enum class SkSVGSVG::Type

strong

Enumerator
kRoot
kInner

Definition at line 19 of file SkSVGSVG.h.

                    {
        kRoot,
        kInner,
    };

Member Function Documentation

intrinsicSize()

SkSize SkSVGSVG::intrinsicSize

(

const SkSVGLengthContext &

lctx

)

const

Definition at line 102 of file SkSVGSVG.cpp.

                                                                   {
    // Percentage values do not provide an intrinsic size.
    if (fWidth.unit() == SkSVGLength::Unit::kPercentage ||
        fHeight.unit() == SkSVGLength::Unit::kPercentage) {
        return SkSize::Make(0, 0);
    }
 
    return SkSize::Make(lctx.resolve(fWidth, SkSVGLengthContext::LengthType::kHorizontal),
                        lctx.resolve(fHeight, SkSVGLengthContext::LengthType::kVertical));
}

Make()

static sk_sp< SkSVGSVG > SkSVGSVG::Make ( Type  t = Type::kInner )

inlinestatic

Definition at line 23 of file SkSVGSVG.h.

{ return sk_sp<SkSVGSVG>(new SkSVGSVG(t)); }

onPrepareToRender()

bool SkSVGSVG::onPrepareToRender ( SkSVGRenderContext *  ctx ) const

overrideprotectedvirtual

Reimplemented from SkSVGNode.

Definition at line 29 of file SkSVGSVG.cpp.

                                                              {
    // x/y are ignored for outermost svg elements
    const auto x = fType == Type::kInner ? fX : SkSVGLength(0);
    const auto y = fType == Type::kInner ? fY : SkSVGLength(0);
 
    auto viewPortRect  = ctx->lengthContext().resolveRect(x, y, fWidth, fHeight);
    auto contentMatrix = SkMatrix::Translate(viewPortRect.x(), viewPortRect.y());
    auto viewPort      = SkSize::Make(viewPortRect.width(), viewPortRect.height());
 
    if (fViewBox.isValid()) {
        const SkRect& viewBox = *fViewBox;
 
        // An empty viewbox disables rendering.
        if (viewBox.isEmpty()) {
            return false;
        }
 
        // A viewBox overrides the intrinsic viewport.
        viewPort = SkSize::Make(viewBox.width(), viewBox.height());
 
        contentMatrix.preConcat(ComputeViewboxMatrix(viewBox, viewPortRect, fPreserveAspectRatio));
    }
 
    if (!contentMatrix.isIdentity()) {
        ctx->saveOnce();
        ctx->canvas()->concat(contentMatrix);
    }
 
    if (viewPort != ctx->lengthContext().viewPort()) {
        ctx->writableLengthContext()->setViewPort(viewPort);
    }
 
    return this->INHERITED::onPrepareToRender(ctx);
}

onSetAttribute()

void SkSVGSVG::onSetAttribute ( SkSVGAttribute  attr, const SkSVGValue &  v  )

overrideprotectedvirtual

Reimplemented from SkSVGNode.

Definition at line 64 of file SkSVGSVG.cpp.

                                                                      {
    switch (attr) {
    case SkSVGAttribute::kX:
        if (const auto* x = v.as<SkSVGLengthValue>()) {
            this->setX(*x);
        }
        break;
    case SkSVGAttribute::kY:
        if (const auto* y = v.as<SkSVGLengthValue>()) {
            this->setY(*y);
        }
        break;
    case SkSVGAttribute::kWidth:
        if (const auto* w = v.as<SkSVGLengthValue>()) {
            this->setWidth(*w);
        }
        break;
    case SkSVGAttribute::kHeight:
        if (const auto* h = v.as<SkSVGLengthValue>()) {
            this->setHeight(*h);
        }
        break;
    case SkSVGAttribute::kViewBox:
        if (const auto* vb = v.as<SkSVGViewBoxValue>()) {
            this->setViewBox(*vb);
        }
        break;
    case SkSVGAttribute::kPreserveAspectRatio:
        if (const auto* par = v.as<SkSVGPreserveAspectRatioValue>()) {
            this->setPreserveAspectRatio(*par);
        }
        break;
    default:
        this->INHERITED::onSetAttribute(attr, v);
    }
}

renderNode()

void SkSVGSVG::renderNode	(	const SkSVGRenderContext &	ctx,
		const SkSVGIRI &	iri
	)		const

Definition at line 13 of file SkSVGSVG.cpp.

                                                                                  {
    SkSVGRenderContext localContext(ctx, this);
    SkSVGRenderContext::BorrowedNode node = localContext.findNodeById(iri);
    if (!node) {
        return;
    }
 
    if (this->onPrepareToRender(&localContext)) {
        if (this == node.get()) {
            this->onRender(ctx);
        } else {
            node->render(localContext);
        }
    }
}

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

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