#include <SkSGGradient.h>

Inheritance diagram for sksg::Gradient:

Classes
struct	ColorStop

Protected Member Functions
sk_sp< SkShader >	onRevalidateShader () final

virtual sk_sp< SkShader >	onMakeShader (const std::vector< SkColor4f > &colors, const std::vector< SkScalar > &positions) const =0

	Gradient ()=default

Protected Member Functions inherited from sksg::Shader
	Shader ()

SkRect	onRevalidate (InvalidationController *, const SkMatrix &) final

Protected Member Functions inherited from sksg::Node
	Node (uint32_t invalTraits)

	~Node () override

const SkRect &	bounds () const

bool	hasInval () const

void	observeInval (const sk_sp< Node > &)

void	unobserveInval (const sk_sp< Node > &)

Additional Inherited Members
Public Member Functions inherited from sksg::Shader
	~Shader () override

const sk_sp< SkShader > &	getShader () const

Public Member Functions inherited from sksg::Node
const SkRect &	revalidate (InvalidationController *, const SkMatrix &)

void	invalidate (bool damage=true)

Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()

virtual	~SkRefCntBase ()

bool	unique () const

void	ref () const

void	unref () const

Protected Types inherited from sksg::Node
enum	InvalTraits { kBubbleDamage_Trait = 1 << 0 , kOverrideDamage_Trait = 1 << 1 }

Detailed Description

Gradient base class.

Definition at line 28 of file SkSGGradient.h.

Constructor & Destructor Documentation

◆ Gradient()

sksg::Gradient::Gradient ( )

protecteddefault

Member Function Documentation

◆ onMakeShader()

virtual sk_sp< SkShader > sksg::Gradient::onMakeShader	(	const std::vector< SkColor4f > &	colors,
		const std::vector< SkScalar > &	positions
	)		const

protectedpure virtual

Implemented in sksg::LinearGradient, and sksg::RadialGradient.

◆ onRevalidateShader()

sk_sp< SkShader > sksg::Gradient::onRevalidateShader ( )

finalprotectedvirtual

Implements sksg::Shader.

Definition at line 19 of file SkSGGradient.cpp.

                                             {
    if (fColorStops.empty()) {
        return nullptr;
    }
 
    std::vector<SkColor4f> colors;
    std::vector<SkScalar>  positions;
    colors.reserve(fColorStops.size());
    positions.reserve(fColorStops.size());
 
    SkScalar position = 0;
    for (const auto& stop : fColorStops) {
        colors.push_back(stop.fColor);
        position = SkTPin(stop.fPosition, position, 1.0f);
        positions.push_back(position);
    }
 
    // TODO: detect even stop distributions, pass null for positions.
    return this->onMakeShader(colors, positions);
}

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

third_party/skia/modules/sksg/include/SkSGGradient.h
third_party/skia/modules/sksg/src/SkSGGradient.cpp

Classes