SkSVGGradient Class Reference

#include <SkSVGGradient.h>

Inheritance diagram for SkSVGGradient:

Public Member Functions
	SVG_ATTR (GradientTransform, SkSVGTransformType, SkSVGTransformType(SkMatrix::I())) SVG_ATTR(GradientUnits
	SkSVGObjectBoundingBoxUnits (SkSVGObjectBoundingBoxUnits::Type::kObjectBoundingBox)) protected
bool	parseAndSetAttribute (const char *, const char *) override
bool	onAsPaint (const SkSVGRenderContext &, SkPaint *) const final
virtual sk_sp< SkShader >	onMakeShader (const SkSVGRenderContext &, const SkColor4f *, const SkScalar *, int count, SkTileMode, const SkMatrix &localMatrix) const =0
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

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)
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)
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 19 of file SkSVGGradient.h.

Member Function Documentation

onAsPaint()

bool SkSVGGradient::onAsPaint ( const SkSVGRenderContext &  ctx, SkPaint *  paint  ) const

finalvirtual

Reimplemented from SkSVGNode.

Definition at line 70 of file SkSVGGradient.cpp.

                                                                                 {
    StopColorArray colors;
    StopPositionArray pos;
 
    this->collectColorStops(ctx, &pos, &colors);
 
    // TODO:
    //       * stop (lazy?) sorting
    //       * href loop detection
    //       * href attribute inheritance (not just color stops)
    //       * objectBoundingBox units support
 
    static_assert(static_cast<SkTileMode>(SkSVGSpreadMethod::Type::kPad) ==
                  SkTileMode::kClamp, "SkSVGSpreadMethod::Type is out of sync");
    static_assert(static_cast<SkTileMode>(SkSVGSpreadMethod::Type::kRepeat) ==
                  SkTileMode::kRepeat, "SkSVGSpreadMethod::Type is out of sync");
    static_assert(static_cast<SkTileMode>(SkSVGSpreadMethod::Type::kReflect) ==
                  SkTileMode::kMirror, "SkSVGSpreadMethod::Type is out of sync");
    const auto tileMode = static_cast<SkTileMode>(fSpreadMethod.type());
 
    const auto obbt = ctx.transformForCurrentOBB(fGradientUnits);
    const auto localMatrix = SkMatrix::Translate(obbt.offset.x, obbt.offset.y)
                           * SkMatrix::Scale(obbt.scale.x, obbt.scale.y)
                           * fGradientTransform;
 
    paint->setShader(this->onMakeShader(ctx, colors.begin(), pos.begin(), colors.size(), tileMode,
                                        localMatrix));
    return true;
}

onMakeShader()

virtual sk_sp< SkShader > SkSVGGradient::onMakeShader ( const SkSVGRenderContext &  , const SkColor4f *  , const SkScalar *  , int  count, SkTileMode  , const SkMatrix &  localMatrix  ) const

pure virtual

Implemented in SkSVGLinearGradient, and SkSVGRadialGradient.

parseAndSetAttribute()

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

overridevirtual

Reimplemented from SkSVGNode.

Reimplemented in SkSVGLinearGradient, and SkSVGRadialGradient.

Definition at line 15 of file SkSVGGradient.cpp.

                                                                            {
    return INHERITED::parseAndSetAttribute(name, value) ||
           this->setGradientTransform(SkSVGAttributeParser::parse<SkSVGTransformType>(
                   "gradientTransform", name, value)) ||
           this->setHref(SkSVGAttributeParser::parse<SkSVGIRI>("xlink:href", name, value)) ||
           this->setSpreadMethod(
                   SkSVGAttributeParser::parse<SkSVGSpreadMethod>("spreadMethod", name, value)) ||
           this->setGradientUnits(SkSVGAttributeParser::parse<SkSVGObjectBoundingBoxUnits>(
                   "gradientUnits", name, value));
}

SkSVGObjectBoundingBoxUnits()

SkSVGGradient::SkSVGObjectBoundingBoxUnits ( SkSVGObjectBoundingBoxUnits::Type::kObjectBoundingBox  )

inline

Definition at line 26 of file SkSVGGradient.h.

         :
    explicit SkSVGGradient(SkSVGTag t) : INHERITED(t) {}

SVG_ATTR()

SkSVGGradient::SVG_ATTR	(	GradientTransform	,
		SkSVGTransformType	,
		SkSVGTransformType(SkMatrix::I())
	)

Member Data Documentation

SkSVGObjectBoundingBoxUnits

SkSVGGradient::SkSVGObjectBoundingBoxUnits

Definition at line 25 of file SkSVGGradient.h.

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

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