javax.swing.text
class StyleContext.NamedStyle

java.lang.Object javax.swing.text.StyleContext.NamedStyle

All Implemented Interfaces:

Serializable, Style

Enclosing class:

StyleContext

public class StyleContext.NamedStyle
extends Object
implements Style, Serializable

A collection of attributes, typically used to represent character and paragraph styles. This is an implementation of MutableAttributeSet that can be observed if desired. These styles will take advantage of immutability while the sets are small enough, and may be substantially more efficient than something like SimpleAttributeSet.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans^TM has been added to the java.beans package. Please see {@link java.beans.XMLEncoder}.

changeEvent

protected transient ChangeEvent changeEvent

Only one ChangeEvent is needed per model instance since the event's only (read-only) state is the source property. The source of events generated here is always "this".

listenerList

protected EventListenerList listenerList

The change listeners for the model.

StyleContext.NamedStyle

public StyleContext.NamedStyle()

Creates a new named style, with a null name and parent.

StyleContext.NamedStyle

public StyleContext.NamedStyle(String name,
                               Style parent)

Creates a new named style.

Parameters:

name - the style name, null for unnamed

parent - the parent style, null if none

StyleContext.NamedStyle

public StyleContext.NamedStyle(Style parent)

Creates a new named style.

Parameters:

parent - the parent style, null if none

addAttribute

public void addAttribute(Object name,
                         Object value)

Adds an attribute.

Parameters:

name - the non-null attribute name

value - the attribute value

addAttributes

public void addAttributes(AttributeSet attr)

Adds a set of attributes to the element.

Parameters:

attr - the attributes to add

addChangeListener

public void addChangeListener(ChangeListener l)

Adds a change listener.

Parameters:

l - the change listener

containsAttribute

public boolean containsAttribute(Object name,
                                 Object value)

Checks whether a given attribute name/value is defined.

Parameters:

name - the non-null attribute name

value - the attribute value

Returns:

true if the name/value is defined

containsAttributes

public boolean containsAttributes(AttributeSet attrs)

Checks whether the element contains all the attributes.

Parameters:

attrs - the attributes to check

Returns:

true if the element contains all the attributes

copyAttributes

public AttributeSet copyAttributes()

Copies a set of attributes.

Returns:

the copy

fireStateChanged

protected void fireStateChanged()

Notifies all listeners that have registered interest for notification on this event type. The event instance is lazily created using the parameters passed into the fire method.

getAttribute

public Object getAttribute(Object attrName)

Gets the value of an attribute.

Parameters:

attrName - the non-null attribute name

Returns:

the attribute value

getAttributeCount

public int getAttributeCount()

Gets the number of attributes that are defined.

Returns:

the number of attributes >= 0

getAttributeNames

public Enumeration getAttributeNames()

Gets the names of all attributes.

Returns:

the attribute names as an enumeration

getChangeListeners

public ChangeListener[] getChangeListeners()

Returns an array of all the ChangeListeners added to this NamedStyle with addChangeListener().

Returns:

all of the ChangeListeners added or an empty array if no listeners have been added

getListeners

public EventListener[] getListeners(Class listenerType)

Return an array of all the listeners of the given type that were added to this model.

Parameters:

listenerType

Returns:

all of the objects receiving listenerType notifications from this model

getName

public 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

getResolveParent

public AttributeSet getResolveParent()

Gets attributes from the parent. If not overriden, the resolving parent defaults to the parent element.

Returns:

the attributes from the parent

isDefined

public boolean isDefined(Object attrName)

Checks whether a given attribute is defined.

Parameters:

attrName - the non-null attribute name

Returns:

true if the attribute is defined

isEqual

public boolean isEqual(AttributeSet attr)

Checks whether two attribute sets are equal.

Parameters:

attr - the attribute set to check against

Returns:

true if the same

removeAttribute

public void removeAttribute(Object name)

Removes an attribute from the set.

Parameters:

name - the non-null attribute name

removeAttributes

public void removeAttributes(AttributeSet attrs)

Removes a set of attributes for the element.

Parameters:

attrs - the attributes

removeAttributes

public void removeAttributes(Enumeration names)

Removes a set of attributes for the element.

Parameters:

names - the attribute names

removeChangeListener

public void removeChangeListener(ChangeListener l)

Removes a change listener.

Parameters:

l - the change listener

setName

public void setName(String name)

Changes the name of the style. Does nothing with a null name.

Parameters:

name - the new name

setResolveParent

public void setResolveParent(AttributeSet parent)

Sets the resolving parent.

Parameters:

parent - the parent, null if none

toString

public String toString()

Converts the style to a string.

Overrides:

toString in class Object

Returns:

the string