donner::svg::SVGPatternElement Class Reference

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

#include "donner/svg/SVGPatternElement.h"

Inheritance diagram for donner::svg::SVGPatternElement:

Collaboration diagram for donner::svg::SVGPatternElement:

Public Member Functions
std::optional< Boxd >	viewBox () const
	Get the parsed value of the viewBox attribute, if specified, which defines a rectangle in userspace that should be mapped to the SVG viewport bounds established by the pattern.
PreserveAspectRatio	preserveAspectRatio () const
	The value of the preserveAspectRatio attribute, which defines how to scale the viewport to fit the content.
Lengthd	x () const
	Get the value of the x attribute, which defines the top-left X coordinate of the rectangle indicating how pattern tiles are placed and spread.
Lengthd	y () const
	Get the value of the y attribute, which defines the top-left Y coordinate of the rectangle indicating how pattern tiles are placed and spread.
std::optional< Lengthd >	width () const
	Get the value of the width attribute, if specified, which defines the width of the rectangle indicating how pattern tiles are placed and spread.
std::optional< Lengthd >	height () const
	Get the value of the height attribute, if specified, which defines the height of the rectangle indicating how pattern tiles are placed and spread.
PatternUnits	patternUnits () const
	Get the value of the patternUnits attribute, which defines the coordinate system for attributes x, y, width, and height.
PatternContentUnits	patternContentUnits () const
	Get the value of the patternContentUnits attribute, which defines the coordinate system for the contents of the pattern.
Transformd	patternTransform () const
	Get the value of the patternTransform attribute, which is an optional transformation from the pattern coordinate system onto the target coordinate system, allowing transformations such as skewing the pattern tiles.
std::optional< RcString >	href () const
	Get the value of the href attribute, if specified, which is a reference to another pattern element to use as a template.
void	setViewBox (OptionalRef< Boxd > viewBox)
	Set the viewBox attribute, which defines a rectangle in userspace that should be mapped to the SVG viewport bounds established by the pattern.
void	setPreserveAspectRatio (PreserveAspectRatio preserveAspectRatio)
	Set the preserveAspectRatio attribute, which defines how to scale the viewport to fit the content.
void	setX (Lengthd value)
	Set the x attribute, which defines the top-left X coordinate of the rectangle indicating how pattern tiles are placed and spread.
void	setY (Lengthd value)
	Set the y attribute, which defines the top-left Y coordinate of the rectangle indicating how pattern tiles are placed and spread.
void	setWidth (OptionalRef< Lengthd > value)
	Set the width attribute, which defines the width of the rectangle indicating how pattern tiles are placed and spread.
void	setHeight (OptionalRef< Lengthd > value)
	Set the height attribute, which defines the height of the rectangle indicating how pattern tiles are placed and spread.
void	setPatternUnits (PatternUnits value)
	Set the patternUnits attribute, which defines the coordinate system for attributes x, y, width, and height.
void	setPatternContentUnits (PatternContentUnits value)
	Set the patternContentUnits attribute, which defines the coordinate system for the contents of the pattern.
void	setPatternTransform (Transformd transform)
	Set the patternTransform attribute, which is an optional transformation from the pattern coordinate system onto the target coordinate system.
void	setHref (OptionalRef< RcStringOrRef > value)
	Set the href attribute, which is a reference to another pattern element to use as a template.
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 SVGPatternElement	Create (SVGDocument &document)
	Create a new "<pattern>" element.

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

Protected Member Functions
	SVGPatternElement (EntityHandle handle)
	Create an SVGPatternElement wrapper from an entity.
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 SVGPatternElement	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 "<pattern>" element.

<pattern id="MyPattern" viewBox="0,0,10,10" width="15%" height="15%">
  <circle cx="5" cy="5" r="5" fill="red" />
</pattern>

To reference it with a fill:

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

Attribute	Default	Description
viewBox	(none)	A list of four numbers (min-x, min-y, width, height) separated by whitespace and/or a comma, that specify a rectangle in userspace that should be mapped to the SVG viewport bounds established by the pattern.
preserveAspectRatio	xMidYMid meet	How to scale the viewport to fit the content. Only applies is viewBox is specified.
x	0	Defines the top-left X coordinate of a rectangle indicating how pattern tiles are placed and spread. The coordinate system is determined by the combination of the patternUnits and patternTransform attributes.
y	0	Defines the top-left Y coordinate of a rectangle indicating how pattern tiles are placed and spread. The coordinate system is determined by the combination of the patternUnits and patternTransform attributes.
width	0	Defines the width of a rectangle indicating how pattern tiles are placed and spread. The coordinate system is determined by the combination of the patternUnits and patternTransform attributes.
height	0	Defines the height of a rectangle indicating how pattern tiles are placed and spread. The coordinate system is determined by the combination of the patternUnits and patternTransform attributes.
patternUnits	objectBoundingBox	Defines the coordinate system for attributes x, y, width, and height.
patternContentUnits	userSpaceOnUse	Defines the coordinate system for the contents of the pattern. Note that this attribute has no effect if the viewBox attribute is specified.
patternTransform	identity	Optional transformation from the pattern coordinate system onto the target coordinate system, allowing things like skewing the pattern tiles.
href	(none)	Reference to another pattern element to use as a template.

Member Function Documentation

Create()

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

inlinestatic

Create a new "<pattern>" element.

Parameters

document

Containing document.

CreateOn()

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

staticprotected

Internal constructor to create the element on an existing Entity.

Parameters

handle

Entity handle.

patternContentUnits()

PatternContentUnits donner::svg::SVGPatternElement::patternContentUnits

(

)

const

Get the value of the patternContentUnits attribute, which defines the coordinate system for the contents of the pattern.

Note that this attribute has no effect if the viewBox attribute is specified.

preserveAspectRatio()

PreserveAspectRatio donner::svg::SVGPatternElement::preserveAspectRatio

(

)

const

The value of the preserveAspectRatio attribute, which defines how to scale the viewport to fit the content.

Only applies is viewBox is specified.

setHeight()

void donner::svg::SVGPatternElement::setHeight

(

OptionalRef< Lengthd >

value

)

Set the height attribute, which defines the height of the rectangle indicating how pattern tiles are placed and spread.

Parameters

value

The height value to set.

setHref()

void donner::svg::SVGPatternElement::setHref

(

OptionalRef< RcStringOrRef >

value

)

Set the href attribute, which is a reference to another pattern element to use as a template.

Parameters

value

The href value to set.

setPatternContentUnits()

void donner::svg::SVGPatternElement::setPatternContentUnits

(

PatternContentUnits

value

)

Set the patternContentUnits attribute, which defines the coordinate system for the contents of the pattern.

Parameters

value

The patternContentUnits value to set.

setPatternTransform()

void donner::svg::SVGPatternElement::setPatternTransform

(

Transformd

transform

)

Set the patternTransform attribute, which is an optional transformation from the pattern coordinate system onto the target coordinate system.

Parameters

transform

The patternTransform value to set.

setPatternUnits()

void donner::svg::SVGPatternElement::setPatternUnits

(

PatternUnits

value

)

Set the patternUnits attribute, which defines the coordinate system for attributes x, y, width, and height.

Parameters

value

The patternUnits value to set.

setPreserveAspectRatio()

void donner::svg::SVGPatternElement::setPreserveAspectRatio

(

PreserveAspectRatio

preserveAspectRatio

)

Set the preserveAspectRatio attribute, which defines how to scale the viewport to fit the content.

Only applies if viewBox is specified.

Parameters

preserveAspectRatio

The preserveAspectRatio value to set.

setViewBox()

void donner::svg::SVGPatternElement::setViewBox

(

OptionalRef< Boxd >

viewBox

)

Set the viewBox attribute, which defines a rectangle in userspace that should be mapped to the SVG viewport bounds established by the pattern.

Parameters

viewBox

The viewBox value to set.

setWidth()

void donner::svg::SVGPatternElement::setWidth

(

OptionalRef< Lengthd >

value

)

Set the width attribute, which defines the width of the rectangle indicating how pattern tiles are placed and spread.

Parameters

value

The width value to set.

setX()

void donner::svg::SVGPatternElement::setX

(

Lengthd

value

)

Set the x attribute, which defines the top-left X coordinate of the rectangle indicating how pattern tiles are placed and spread.

Parameters

value

The X coordinate value to set.

setY()

void donner::svg::SVGPatternElement::setY

(

Lengthd

value

)

Set the y attribute, which defines the top-left Y coordinate of the rectangle indicating how pattern tiles are placed and spread.

Parameters

value

The Y coordinate value to set.

---

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

• donner/svg/SVGPatternElement.h
• donner/svg/SVGPatternElement.cc