donner::svg::SVGRadialGradientElement Class Reference

DOM object for a "<radialGradient>" element. More...

#include "donner/svg/SVGRadialGradientElement.h"

Inheritance diagram for donner::svg::SVGRadialGradientElement:

Collaboration diagram for donner::svg::SVGRadialGradientElement:

Public Member Functions
void	setCx (std::optional< Lengthd > value)
	Set the center X coordinate, for the outer circle.
void	setCy (std::optional< Lengthd > value)
	Set the center Y coordinate, for the outer circle.
void	setR (std::optional< Lengthd > value)
	Set the radius of the outer circle.
void	setFx (std::optional< Lengthd > value)
	Set the focal point X coordinate.
void	setFy (std::optional< Lengthd > value)
	Set the focal point Y coordinate.
void	setFr (std::optional< Lengthd > value)
	Set the focal point radius.
std::optional< Lengthd >	cx () const
	Get the center X coordinate, for the outer circle.
std::optional< Lengthd >	cy () const
	Get the center Y coordinate, for the outer circle.
std::optional< Lengthd >	r () const
	Get the radius of the outer circle.
std::optional< Lengthd >	fx () const
	Get the focal point X coordinate.
std::optional< Lengthd >	fy () const
	Get the focal point Y coordinate.
std::optional< Lengthd >	fr () const
	Get the focal point radius.
Public Member Functions inherited from donner::svg::SVGGradientElement
std::optional< RcString >	href () const
	href attribute to allow inheriting attributes from another gradient.
GradientUnits	gradientUnits () const
	gradientUnits attribute to specify the coordinate system for the gradient.
Transformd	gradientTransform () const
	gradientTransform attribute to specify a transform to apply to the gradient.
GradientSpreadMethod	spreadMethod () const
	spreadMethod attribute to specify how to fill the area outside the gradient.
void	setHref (const std::optional< RcString > &value)
	href attribute to allow inheriting attributes from another gradient.
void	setGradientUnits (GradientUnits value)
	gradientUnits attribute to specify the coordinate system for the gradient.
void	setGradientTransform (const Transformd &value)
	gradientTransform attribute to specify a transform to apply to the gradient.
void	setSpreadMethod (GradientSpreadMethod value)
	spreadMethod attribute to specify how to fill the area outside the gradient.
Public Member Functions inherited from donner::svg::SVGElement
	SVGElement (const SVGElement &other)
	Create another reference to the same SVGElement.
	SVGElement (SVGElement &&other) noexcept
	Move constructor.
	~SVGElement () noexcept=default
	Destructor.
SVGElement &	operator= (const SVGElement &other)
	Create another reference to the same SVGElement.
SVGElement &	operator= (SVGElement &&other) noexcept
	Move assignment operator.
ElementType	type () const
	Get the ElementType for known XML element types.
xml::XMLQualifiedNameRef	tagName () const
	Get the XML tag name string for this element.
bool	isKnownType () const
	Returns true if this is a known element type, returns false if this is an SVGUnknownElement.
EntityHandle	entityHandle () const
	Get the underlying EntityHandle, for advanced use-cases that require direct access to the ECS.
RcString	id () const
	Get the element id, the value of the "id" attribute.
void	setId (std::string_view id)
	Set the element id, the value of the "id" attribute.
RcString	className () const
	Get the element class name, the value of the "class" attribute.
void	setClassName (std::string_view name)
	Set the element class name, the value of the "class" attribute.
void	setStyle (std::string_view style)
	Set the element style, the value of the "style" attribute.
void	updateStyle (std::string_view style)
	Update the element style, adding new attributes or overridding existing ones (without removing them).
ParseResult< bool >	trySetPresentationAttribute (std::string_view name, std::string_view value)
	Set the value of a presentation attribute, such as "fill" or "stroke".
bool	hasAttribute (const xml::XMLQualifiedNameRef &name) const
	Returns true if the element has an attribute with the given name.
std::optional< RcString >	getAttribute (const xml::XMLQualifiedNameRef &name) const
	Get the value of an attribute, if it exists.
SmallVector< xml::XMLQualifiedNameRef, 1 >	findMatchingAttributes (const xml::XMLQualifiedNameRef &matcher) const
	Find attributes matching the given name matcher.
void	setAttribute (const xml::XMLQualifiedNameRef &name, std::string_view value)
	Set the value of a generic XML attribute, which may be either a presentation attribute or custom user-provided attribute.
void	removeAttribute (const xml::XMLQualifiedNameRef &name)
	Remove an attribute, which may be either a presentation attribute or custom user-provided attribute.
SVGDocument	ownerDocument ()
	Get an owning reference to the SVGDocument containing this element.
std::optional< SVGElement >	parentElement () const
	Get this element's parent, if it exists.
std::optional< SVGElement >	firstChild () const
	Get the first child of this element, if it exists.
std::optional< SVGElement >	lastChild () const
	Get the last child of this element, if it exists.
std::optional< SVGElement >	previousSibling () const
	Get the previous sibling of this element, if it exists.
std::optional< SVGElement >	nextSibling () const
	Get the next sibling of this element, if it exists.
void	insertBefore (const SVGElement &newNode, std::optional< SVGElement > referenceNode)
	Insert newNode as a child, before referenceNode.
void	appendChild (const SVGElement &child)
	Append child as a child of the current node.
void	replaceChild (const SVGElement &newChild, const SVGElement &oldChild)
	Replace oldChild with newChild in the tree, removing oldChild and inserting newChild in its place.
void	removeChild (const SVGElement &child)
	Remove child from this node.
void	remove ()
	Remove this node from its parent, if it has one.
bool	operator== (const SVGElement &other) const
	Returns true if the two SVGElement handles reference the same underlying document.
bool	operator!= (const SVGElement &other) const
	Returns true if the two SVGElement handles reference the same underlying document.
template<typename Derived>
bool	isa () const
	Return true if this element "is a" instance of type, if it be cast to a specific type with cast.
template<typename Derived>
Derived	cast ()
	Cast this element to its derived type.
template<typename Derived>
Derived	cast () const
	Cast this element to its derived type (const version).
template<typename Derived>
std::optional< Derived >	tryCast ()
	Cast this element to its derived type, if possible.
template<typename Derived>
std::optional< const Derived >	tryCast () const
	Cast this element to its derived type, if possible.
std::optional< SVGElement >	querySelector (std::string_view selector)
	Find the first element in the tree that matches the given CSS selector.
const PropertyRegistry &	getComputedStyle () const
	Get the computed CSS style of this element, after the CSS cascade.

Static Public Member Functions
static SVGRadialGradientElement	Create (SVGDocument &document)
	Create a new "<radialGradient>" element.
Static Public Member Functions inherited from donner::svg::SVGGradientElement
static constexpr bool	IsBaseOf (ElementType type)
	Returns true if the given element type can be cast to SVGGradientElement.

Static Public Attributes
static constexpr ElementType	Type = ElementType::RadialGradient
	Element type.
static constexpr std::string_view	Tag {"radialGradient"}
	XML tag name, "<radialGradient>".

Protected Member Functions
	SVGRadialGradientElement (EntityHandle handle)
	Create an SVGRadialGradientElement wrapper from an entity.
Protected Member Functions inherited from donner::svg::SVGGradientElement
	SVGGradientElement (EntityHandle handle)
	Constructor for SVGGradientElement, which must be constructed from a derived class.
Protected Member Functions inherited from donner::svg::SVGElement
	SVGElement (EntityHandle handle)
	Internal constructor to create an SVGElement from an EntityHandle.
Registry &	registry () const
	Get the underlying ECS Registry, which holds all data for the document, for advanced use.
EntityHandle	toHandle (Entity entity) const
	Convert an Entity to an EntityHandle, for advanced use.

Static Protected Member Functions
static SVGRadialGradientElement	CreateOn (EntityHandle handle)
	Internal constructor to create the element on an existing Entity.
Static Protected Member Functions inherited from donner::svg::SVGElement
static EntityHandle	CreateEmptyEntity (SVGDocument &document)
	Create a new Entity within the document ECS, and return a handle to it.
static void	CreateEntityOn (EntityHandle handle, const xml::XMLQualifiedNameRef &tagName, ElementType Type)
	Create a new SVG element instance on a given Entity.

Friends
class	parser::SVGParserImpl

Additional Inherited Members
Protected Attributes inherited from donner::svg::SVGElement
EntityHandle	handle_
	The underlying ECS Entity for this element, which holds all data.

Detailed Description

DOM object for a "<radialGradient>" element.

<radialGradient id="MyGradient">
  <stop offset="0%" stop-color="blue" />
  <stop offset="100%" stop-color="yellow" />
</radialGradient>

To reference it with a fill:

<rect fill="url(#MyGradient)" width="300" height="300" />

To control the shape of the radial gradient, use the cx, cy, r, fx, fy, and fr attributes, which defines two circles representing the start and end of the gradient, the focal point and the outer circle. If the focal point is not specified (fx, fy, and fr), the focal point defaults to the position of the outer circle (cx and cy) with radius 0.

Attribute	Default	Description
cx	50%	Center X coordinate, for the outer circle.
cy	50%	Center Y coordinate, for the outer circle.
r	50%	Radius of the outer circle.
fx	cx	Focal point X coordinate.
fy	cy	Focal point Y coordinate.
fr	0	Focal point radius.
gradientUnits	objectBoundingBox	The coordinate system for the gradient, either userSpaceOnUse or objectBoundingBox.
gradientTransform	(none)	A transform to apply to the gradient.
spreadMethod	pad	How to handle colors outside the gradient. Either pad, reflect, or repeat.
href	(none)	A URL reference to a template gradient element, which is then used as a template for this gradient. Example: <radialGradient id="MyGradient" href="#MyGradient2" />

See also

SVGLinearGradientElement, SVGStopElement

Member Function Documentation

Create()

SVGRadialGradientElement donner::svg::SVGRadialGradientElement::Create ( SVGDocument & document )

inlinestatic

Create a new "<radialGradient>" element.

Parameters

document

Containing document.

CreateOn()

SVGRadialGradientElement donner::svg::SVGRadialGradientElement::CreateOn ( EntityHandle handle )

staticprotected

Internal constructor to create the element on an existing Entity.

Parameters

handle

Entity handle.

cx()

std::optional< Lengthd > donner::svg::SVGRadialGradientElement::cx

(

)

const

Get the center X coordinate, for the outer circle.

Note that at render-time, this will default to 50% if not set.

cy()

std::optional< Lengthd > donner::svg::SVGRadialGradientElement::cy

(

)

const

Get the center Y coordinate, for the outer circle.

Note that at render-time, this will default to 50% if not set.

fr()

std::optional< Lengthd > donner::svg::SVGRadialGradientElement::fr

(

)

const

Get the focal point radius.

Note that at render-time, this will default to 0 if not set.

fx()

std::optional< Lengthd > donner::svg::SVGRadialGradientElement::fx

(

)

const

Get the focal point X coordinate.

Note that at render-time, this will default to cx() if not set.

fy()

std::optional< Lengthd > donner::svg::SVGRadialGradientElement::fy

(

)

const

Get the focal point Y coordinate.

Note that at render-time, this will default to cy() if not set.

r()

std::optional< Lengthd > donner::svg::SVGRadialGradientElement::r

(

)

const

Get the radius of the outer circle.

Note that at render-time, this will default to 50% if not set.

setCx()

void donner::svg::SVGRadialGradientElement::setCx

(

std::optional< Lengthd >

value

)

Set the center X coordinate, for the outer circle.

Parameters

value

Coordinate value, or std::nullopt to remove the attribute.

setCy()

void donner::svg::SVGRadialGradientElement::setCy

(

std::optional< Lengthd >

value

)

Set the center Y coordinate, for the outer circle.

Parameters

value

Coordinate value, or std::nullopt to remove the attribute.

setFr()

void donner::svg::SVGRadialGradientElement::setFr

(

std::optional< Lengthd >

value

)

Set the focal point radius.

Parameters

value

Radius value, or std::nullopt to remove the attribute.

setFx()

void donner::svg::SVGRadialGradientElement::setFx

(

std::optional< Lengthd >

value

)

Set the focal point X coordinate.

Parameters

value

Coordinate value, or std::nullopt to remove the attribute.

setFy()

void donner::svg::SVGRadialGradientElement::setFy

(

std::optional< Lengthd >

value

)

Set the focal point Y coordinate.

Parameters

value

Coordinate value, or std::nullopt to remove the attribute.

setR()

void donner::svg::SVGRadialGradientElement::setR

(

std::optional< Lengthd >

value

)

Set the radius of the outer circle.

Parameters

value

Radius value, or std::nullopt to remove the attribute.

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

• donner/svg/SVGRadialGradientElement.h
• donner/svg/SVGRadialGradientElement.cc