Package com.storedobject.svg

Class Group

java.lang.Object

com.storedobject.svg.Node<Group>

com.storedobject.svg.Element<Group>

com.storedobject.svg.AbstractGroup<Group>

com.storedobject.svg.Group

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

Canvas

public class Group
extends AbstractGroup<Group>

Represents a group element in the SVG structure. The Group class is used to manage and organize a collection of child Node elements, allowing for their collective manipulation and rendering in an SVG format. It provides functionality to add, remove, and iterate through child elements, as well as to build the group into its final SVG representation.

Author:

Syam

See Also:

• Serialized Form

Field Summary

Fields inherited from class com.storedobject.svg.AbstractGroup

children

Fields inherited from class com.storedobject.svg.Element

styles, tag

Fields inherited from class com.storedobject.svg.Node

NUMERIC_PRECISION, x1, x2, y1, y2

Constructor Summary

Constructors

Constructor	Description
Group()	Default constructor for the Group class.

Method Summary

Modifier and Type	Method	Description
void	add(int index, Node<?> child)	Inserts a child Node at the specified position within the group's list of children.
void	add(Node<?> child)	Adds a child Node to the group.
void	clear()	Removes all child Node elements from this group.
Node<?>	getChildAt(int index)	Retrieves the child Node at the specified index within the group's list of children.
void	remove(Node<?> child)	Removes a child Node from the group.

Methods inherited from class com.storedobject.svg.AbstractGroup

children, compute, innerContent

Methods inherited from class com.storedobject.svg.Element

getStyles, styles, tag

Methods inherited from class com.storedobject.svg.Node

attributes, copy, createDocument, equals, escapeXml, extraContent, flipHorizontally, flipHorizontallyAroundOrigin, flipVertically, flipVerticallyAroundOrigin, getCoordinates, getId, getMargin, getSvg, hashCode, id, ID, IDValue, moveTo, moveTo, rotate, rotateAround, rotateAround, rotateAroundCenter, scale, scale, scaleHeightTo, scaleTo, scaleWidthTo, toString, toString, transform, translate, translate

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

Group

public Group()

Default constructor for the Group class. Initializes a new instance of the Group element with the SVG tag "g". This constructor sets up the base structure required for managing and organizing a collection of child Node elements in the SVG structure.

Method Details

add

public void add(Node<?> child)

Adds a child Node to the group. If the provided child node is non-null, it will be added to the internal list of child nodes managed by this group.

Parameters:

child - the Node to be added to the group; must not be null.

add

public void add(int index,
 Node<?> child)

Inserts a child Node at the specified position within the group's list of children. If the provided child node is non-null, it will be added at the specified index.

Parameters:

index - the position at which the child should be inserted; must be a valid index.

child - the Node to be inserted; must not be null.

remove

public void remove(Node<?> child)

Removes a child Node from the group. If the specified child node exists in the group's list of children, it will be removed.

Parameters:

child - the Node to be removed from the group; must not be null.

clear

public void clear()

Removes all child Node elements from this group. This method clears the internal list of child nodes managed by the group, leaving it empty. It is commonly used to reset the group to a clean state.

getChildAt

public Node<?> getChildAt(int index)

Retrieves the child Node at the specified index within the group's list of children. If the provided index is out of bounds, this method returns null.

Parameters:

index - the position of the child Node to retrieve; must be a non-negative integer within the range of the group's children list.

Returns:

the Node at the specified index, or null if the index is invalid.