Java Platform 1.2

javax.swing.text
Class StyleContext.NamedStyle

java.lang.Object
  |
  +--javax.swing.text.StyleContext.NamedStyle

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. A future release of Swing will provide support for long term persistence.

See Also:
Serialized Form

Field Summary
protected  ChangeEvent changeEvent
          Only one ChangeEvent is needed per model instance since the event's only (read-only) state is the source property.
protected  EventListenerList listenerList
          The change listeners for the model.
 
Constructor Summary
StyleContext.NamedStyle()
          Creates a new named style, with a null name and parent.
StyleContext.NamedStyle(String name, Style parent)
          Creates a new named style.
StyleContext.NamedStyle(Style parent)
          Creates a new named style.
 
Method Summary
 void addAttribute(Object name, Object value)
          Adds an attribute.
 void addAttributes(AttributeSet attr)
          Adds a set of attributes to the element.
 void addChangeListener(ChangeListener l)
          Adds a change listener.
 boolean containsAttribute(Object name, Object value)
          Checks whether a given attribute name/value is defined.
 boolean containsAttributes(AttributeSet attrs)
          Checks whether the element contains all the attributes.
 AttributeSet copyAttributes()
          Copies a set of attributes.
protected  void fireStateChanged()
          Notifies all listeners that have registered interest for notification on this event type.
 Object getAttribute(Object attrName)
          Gets the value of an attribute.
 int getAttributeCount()
          Gets the number of attributes that are defined.
 Enumeration getAttributeNames()
          Gets the names of all attributes.
 String getName()
          Fetches the name of the style.
 AttributeSet getResolveParent()
          Gets attributes from the parent.
 boolean isDefined(Object attrName)
          Checks whether a given attribute is defined.
 boolean isEqual(AttributeSet attr)
          Checks whether two attribute sets are equal.
 void removeAttribute(Object name)
          Removes an attribute from the set.
 void removeAttributes(AttributeSet attrs)
          Removes a set of attributes for the element.
 void removeAttributes(Enumeration names)
          Removes a set of attributes for the element.
 void removeChangeListener(ChangeListener l)
          Removes a change listener.
 void setName(String name)
          Changes the name of the style.
 void setResolveParent(AttributeSet parent)
          Sets the resolving parent.
 String toString()
          Converts the style to a string.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

listenerList

protected EventListenerList listenerList
The change listeners for the model.

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".
Constructor Detail

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

StyleContext.NamedStyle

public StyleContext.NamedStyle()
Creates a new named style, with a null name and parent.
Method Detail

toString

public String toString()
Converts the style to a string.
Returns:
the string
Overrides:
toString in class Object

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.
Specified by:
getName in interface Style
Returns:
the name

setName

public void setName(String name)
Changes the name of the style. Does nothing with a null name.
Parameters:
name - the new name

addChangeListener

public void addChangeListener(ChangeListener l)
Adds a change listener.
Specified by:
addChangeListener in interface Style
Parameters:
l - the change listener
See Also:
Attributes#addChangeListener

removeChangeListener

public void removeChangeListener(ChangeListener l)
Removes a change listener.
Specified by:
removeChangeListener in interface Style
Parameters:
l - the change listener
See Also:
Attributes#removeChangeListener

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.
See Also:
EventListenerList

getAttributeCount

public int getAttributeCount()
Gets the number of attributes that are defined.
Returns:
the number of attributes >= 0
See Also:
AttributeSet.getAttributeCount()

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
See Also:
AttributeSet.isDefined(java.lang.Object)

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
See Also:
AttributeSet.isEqual(javax.swing.text.AttributeSet)

copyAttributes

public AttributeSet copyAttributes()
Copies a set of attributes.
Returns:
the copy
See Also:
AttributeSet.copyAttributes()

getAttribute

public Object getAttribute(Object attrName)
Gets the value of an attribute.
Parameters:
attrName - the non-null attribute name
Returns:
the attribute value
See Also:
AttributeSet.getAttribute(java.lang.Object)

getAttributeNames

public Enumeration getAttributeNames()
Gets the names of all attributes.
Returns:
the attribute names as an enumeration
See Also:
AttributeSet.getAttributeNames()

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
See Also:
AttributeSet.containsAttribute(java.lang.Object, java.lang.Object)

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
See Also:
AttributeSet.containsAttributes(javax.swing.text.AttributeSet)

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
See Also:
AttributeSet.getResolveParent()

addAttribute

public void addAttribute(Object name,
                         Object value)
Adds an attribute.
Parameters:
name - the non-null attribute name
value - the attribute value
See Also:
MutableAttributeSet.addAttribute(java.lang.Object, java.lang.Object)

addAttributes

public void addAttributes(AttributeSet attr)
Adds a set of attributes to the element.
Parameters:
attr - the attributes to add
See Also:
MutableAttributeSet.addAttribute(java.lang.Object, java.lang.Object)

removeAttribute

public void removeAttribute(Object name)
Removes an attribute from the set.
Parameters:
name - the non-null attribute name
See Also:
MutableAttributeSet.removeAttribute(java.lang.Object)

removeAttributes

public void removeAttributes(Enumeration names)
Removes a set of attributes for the element.
Parameters:
names - the attribute names
See Also:
MutableAttributeSet.removeAttributes(java.util.Enumeration)

removeAttributes

public void removeAttributes(AttributeSet attrs)
Removes a set of attributes for the element.
Parameters:
attrs - the attributes
See Also:
MutableAttributeSet.removeAttributes(java.util.Enumeration)

setResolveParent

public void setResolveParent(AttributeSet parent)
Sets the resolving parent.
Parameters:
parent - the parent, null if none
See Also:
MutableAttributeSet.setResolveParent(javax.swing.text.AttributeSet)

Java Platform 1.2

Submit a bug or feature Version 1.2 of Java Platform API Specification
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