skottie::internal::TransformAdapter3D Class Reference

#include <Transform.h>

Inheritance diagram for skottie::internal::TransformAdapter3D:

Public Member Functions
	TransformAdapter3D (const skjson::ObjectValue &, const AnimationBuilder &)
	~TransformAdapter3D () override
virtual SkM44	totalMatrix () const
Public Member Functions inherited from skottie::internal::DiscardableAdapterBase< TransformAdapter3D, sksg::Matrix< SkM44 > >
const sk_sp< sksg::Matrix< SkM44 > > &	node () const
Public Member Functions inherited from skottie::internal::AnimatablePropertyContainer
template<typename T >
bool	bind (const AnimationBuilder &, const skjson::ObjectValue *, T *)
template<typename T >
bool	bind (const AnimationBuilder &abuilder, const skjson::ObjectValue *jobject, T &v)
bool	bindAutoOrientable (const AnimationBuilder &abuilder, const skjson::ObjectValue *jobject, SkV2 *v, float *orientation)
bool	isStatic () const
template<>
bool	bind (const AnimationBuilder &abuilder, const skjson::ObjectValue *jprop, ScalarValue *v)
template<>
bool	bind (const AnimationBuilder &abuilder, const skjson::ObjectValue *jprop, ShapeValue *v)
template<>
bool	bind (const AnimationBuilder &abuilder, const skjson::ObjectValue *jprop, TextValue *v)
template<>
bool	bind (const AnimationBuilder &abuilder, const skjson::ObjectValue *jprop, Vec2Value *v)
template<>
bool	bind (const AnimationBuilder &abuilder, const skjson::ObjectValue *jprop, VectorValue *v)
template<>
bool	bind (const AnimationBuilder &abuilder, const skjson::ObjectValue *jprop, ColorValue *v)
Public Member Functions inherited from skottie::internal::Animator
StateChanged	seek (float t)
Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()
virtual	~SkRefCntBase ()
bool	unique () const
void	ref () const
void	unref () const

Protected Member Functions
SkV3	anchor_point () const
SkV3	position () const
SkV3	rotation () const
Protected Member Functions inherited from skottie::internal::DiscardableAdapterBase< TransformAdapter3D, sksg::Matrix< SkM44 > >
	DiscardableAdapterBase ()
	DiscardableAdapterBase (sk_sp< sksg::Matrix< SkM44 > > node)
Protected Member Functions inherited from skottie::internal::AnimatablePropertyContainer
void	shrink_to_fit ()
void	attachDiscardableAdapter (sk_sp< AnimatablePropertyContainer >)
Protected Member Functions inherited from skottie::internal::Animator
	Animator ()=default

Private Member Functions
void	onSync () final

Additional Inherited Members
Public Types inherited from skottie::internal::Animator
using	StateChanged = bool
Static Public Member Functions inherited from skottie::internal::DiscardableAdapterBase< TransformAdapter3D, sksg::Matrix< SkM44 > >
static sk_sp< TransformAdapter3D >	Make (Args &&... args)

Detailed Description

Definition at line 78 of file Transform.h.

Constructor & Destructor Documentation

TransformAdapter3D()

skottie::internal::TransformAdapter3D::TransformAdapter3D	(	const skjson::ObjectValue &	jtransform,
		const AnimationBuilder &	abuilder
	)

Definition at line 148 of file Transform.cpp.

    : INHERITED(sksg::Matrix<SkM44>::Make(SkM44())) {
 
    this->bind(abuilder, jtransform["a"], fAnchorPoint);
    this->bind(abuilder, jtransform["p"], fPosition);
    this->bind(abuilder, jtransform["s"], fScale);
 
    // Axis-wise rotation and orientation are mapped to the same rotation property (3D rotation).
    // The difference is in how they get interpolated (scalar/decomposed vs. vector).
    this->bind(abuilder, jtransform["rx"], fRx);
    this->bind(abuilder, jtransform["ry"], fRy);
    this->bind(abuilder, jtransform["rz"], fRz);
    this->bind(abuilder, jtransform["or"], fOrientation);
}

~TransformAdapter3D()

skottie::internal::TransformAdapter3D::~TransformAdapter3D ( )

overridedefault

Member Function Documentation

anchor_point()

SkV3 skottie::internal::TransformAdapter3D::anchor_point ( ) const

protected

Definition at line 170 of file Transform.cpp.

                                            {
    return fAnchorPoint;
}

onSync()

void skottie::internal::TransformAdapter3D::onSync ( )

finalprivatevirtual

Implements skottie::internal::AnimatablePropertyContainer.

Definition at line 166 of file Transform.cpp.

                                {
    this->node()->setMatrix(this->totalMatrix());
}

position()

SkV3 skottie::internal::TransformAdapter3D::position ( ) const

protected

Definition at line 174 of file Transform.cpp.

                                        {
    return fPosition;
}

rotation()

SkV3 skottie::internal::TransformAdapter3D::rotation ( ) const

protected

Definition at line 178 of file Transform.cpp.

                                        {
    // orientation and axis-wise rotation map onto the same property.
    return static_cast<SkV3>(fOrientation) + SkV3{ fRx, fRy, fRz };
}

totalMatrix()

SkM44 skottie::internal::TransformAdapter3D::totalMatrix ( ) const

virtual

Reimplemented in skottie::internal::CameraAdaper.

Definition at line 183 of file Transform.cpp.

                                            {
    const auto anchor_point = this->anchor_point(),
               position     = this->position(),
               scale        = static_cast<SkV3>(fScale),
               rotation     = this->rotation();
 
    return SkM44::Translate(position.x, position.y, position.z)
         * SkM44::Rotate({ 1, 0, 0 }, SkDegreesToRadians(rotation.x))
         * SkM44::Rotate({ 0, 1, 0 }, SkDegreesToRadians(rotation.y))
         * SkM44::Rotate({ 0, 0, 1 }, SkDegreesToRadians(rotation.z))
         * SkM44::Scale(scale.x / 100, scale.y / 100, scale.z / 100)
         * SkM44::Translate(-anchor_point.x, -anchor_point.y, -anchor_point.z);
}

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

• third_party/skia/modules/skottie/src/Transform.h
• third_party/skia/modules/skottie/src/Transform.cpp