Interface Style

All Superinterfaces:

AttributeSet, MutableAttributeSet

All Known Implementing Classes:

StyleContext.NamedStyle

public interface Style
extends MutableAttributeSet

A collection of attributes to associate with an element in a document. Since these are typically used to associate character and paragraph styles with the element, operations for this are provided. Other customized attributes that get associated with the element will effectively be name-value pairs that live in a hierarchy and if a name (key) is not found locally, the request is forwarded to the parent. Commonly used attributes are separated out to facilitate alternative implementations that are more efficient.

Nested Class Summary

Nested classes/interfaces declared in interface AttributeSet

AttributeSet.CharacterAttribute, AttributeSet.ColorAttribute, AttributeSet.FontAttribute, AttributeSet.ParagraphAttribute

Modifier and Type	Interface	Description
static interface	AttributeSet.CharacterAttribute	This interface is the type signature that is expected to be present on any attribute key that contributes to character level presentation.
static interface	AttributeSet.ColorAttribute	This interface is the type signature that is expected to be present on any attribute key that contributes to presentation of color.
static interface	AttributeSet.FontAttribute	This interface is the type signature that is expected to be present on any attribute key that contributes to the determination of what font to use to render some text.
static interface	AttributeSet.ParagraphAttribute	This interface is the type signature that is expected to be present on any attribute key that contributes to the paragraph level presentation.

Field Summary

Fields declared in interface AttributeSet

NameAttribute, ResolveAttribute

Modifier and Type	Field	Description
static final Object	NameAttribute	Attribute name used to name the collection of attributes.
static final Object	ResolveAttribute	Attribute name used to identify the resolving parent set of attributes, if one is defined.

Method Summary

Modifier and Type	Method	Description
void	addChangeListener(ChangeListener l)	Adds a listener to track whenever an attribute has been changed.
String	getName()	Fetches the name of the style.
void	removeChangeListener(ChangeListener l)	Removes a listener that was tracking attribute changes.

Methods declared in interface AttributeSet

containsAttribute, containsAttributes, copyAttributes, getAttribute, getAttributeCount, getAttributeNames, getResolveParent, isDefined, isEqual

Modifier and Type	Method	Description
boolean	containsAttribute(Object name, Object value)	Returns true if this set defines an attribute with the same name and an equal value.
boolean	containsAttributes(AttributeSet attributes)	Returns true if this set defines all the attributes from the given set with equal values.
AttributeSet	copyAttributes()	Returns an attribute set that is guaranteed not to change over time.
Object	getAttribute(Object key)	Fetches the value of the given attribute.
int	getAttributeCount()	Returns the number of attributes that are defined locally in this set.
Enumeration<?>	getAttributeNames()	Returns an enumeration over the names of the attributes that are defined locally in the set.
AttributeSet	getResolveParent()	Gets the resolving parent.
boolean	isDefined(Object attrName)	Checks whether the named attribute has a value specified in the set without resolving through another attribute set.
boolean	isEqual(AttributeSet attr)	Determines if the two attribute sets are equivalent.

Methods declared in interface MutableAttributeSet

addAttribute, addAttributes, removeAttribute, removeAttributes, removeAttributes, setResolveParent

Modifier and Type	Method	Description
void	addAttribute(Object name, Object value)	Creates a new attribute set similar to this one except that it contains an attribute with the given name and value.
void	addAttributes(AttributeSet attributes)	Creates a new attribute set similar to this one except that it contains the given attributes and values.
void	removeAttribute(Object name)	Removes an attribute with the given name.
void	removeAttributes(Enumeration<?> names)	Removes an attribute set with the given names.
void	removeAttributes(AttributeSet attributes)	Removes a set of attributes with the given name.
void	setResolveParent(AttributeSet parent)	Sets the resolving parent.

Method Details

getName

String getName()

Fetches the name of the style. A style is not required to be named, so null is returned if there is no name associated with the style.

Returns:

the name

addChangeListener

void addChangeListener(ChangeListener l)

Adds a listener to track whenever an attribute has been changed.

Parameters:

l - the change listener

removeChangeListener

void removeChangeListener(ChangeListener l)

Removes a listener that was tracking attribute changes.

Parameters:

l - the change listener