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JavaTM 2 Platform Std. Ed. v1.3 |
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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--java.util.Dictionary | +--java.util.Hashtable | +--javax.swing.UIDefaults
A table of defaults for Swing components. Applications can set/get
default values via the UIManager
.
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.
UIManager
, Serialized FormInner Class Summary | |
static interface |
UIDefaults.ActiveValue
This class enables one to store an entry in the defaults table that's constructed each time it's looked up with one of the getXXX(key) methods. |
static class |
UIDefaults.LazyInputMap
LazyInputMap will create a InputMap
in its createValue
method. |
static interface |
UIDefaults.LazyValue
This class enables one to store an entry in the defaults table that isn't constructed until the first time it's looked up with one of the getXXX(key) methods. |
static class |
UIDefaults.ProxyLazyValue
This class provides an implementation of LazyValue
which can be
used to delay loading of the Class for the instance to be created. |
Inner classes inherited from class java.util.Map |
Map.Entry |
Constructor Summary | |
UIDefaults()
Create an empty defaults table. |
|
UIDefaults(Object[] keyValueList)
Create a defaults table initialized with the specified key/value pairs. |
Method Summary | |
void |
addPropertyChangeListener(PropertyChangeListener listener)
Adds a PropertyChangeListener to the listener list. |
protected void |
firePropertyChange(String propertyName,
Object oldValue,
Object newValue)
Support for reporting bound property changes. |
Object |
get(Object key)
Returns the value for key. |
Border |
getBorder(Object key)
If the value of key is a Border return it,
otherwise return null . |
Color |
getColor(Object key)
If the value of key is a Color return it,
otherwise return null . |
Dimension |
getDimension(Object key)
If the value of key is a Dimension return it,
otherwise return null . |
Font |
getFont(Object key)
If the value of key is a Font return it,
otherwise return null . |
Icon |
getIcon(Object key)
If the value of key is an Icon return it,
otherwise return null . |
Insets |
getInsets(Object key)
If the value of key is an Insets return it,
otherwise return null . |
int |
getInt(Object key)
If the value of key is an Integer return its
integer value, otherwise return 0. |
String |
getString(Object key)
If the value of key is a String return it,
otherwise return null . |
ComponentUI |
getUI(JComponent target)
Creates an ComponentUI implementation for the
specified component. |
Class |
getUIClass(String uiClassID)
Returns the L&F class that renders this component. |
Class |
getUIClass(String uiClassID,
ClassLoader uiClassLoader)
The value of get(uidClassID) must be the
String name of a
class that implements the corresponding ComponentUI
class. |
protected void |
getUIError(String msg)
If getUI() fails for any reason,
it calls this method before returning null . |
Object |
put(Object key,
Object value)
Sets the value of key to value . |
void |
putDefaults(Object[] keyValueList)
Puts all of the key/value pairs in the database and unconditionally generates one PropertyChangeEvent . |
void |
removePropertyChangeListener(PropertyChangeListener listener)
Removes a PropertyChangeListener from the listener list. |
Methods inherited from class java.util.Hashtable |
clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, hashCode, isEmpty, keys, keySet, putAll, rehash, remove, size, toString, values |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public UIDefaults()
public UIDefaults(Object[] keyValueList)
Object[] uiDefaults = { "Font", new Font("Dialog", Font.BOLD, 12), "Color", Color.red, "five", new Integer(5) } UIDefaults myDefaults = new UIDefaults(uiDefaults);
keyValueList
- an array of objects containing the key/value
pairsMethod Detail |
public Object get(Object key)
UIDefaults.LazyValue
then the real
value is computed with LazyValue.createValue()
,
the table entry is replaced, and the real value is returned.
If the value is an UIDefaults.ActiveValue
the table entry is not replaced - the value is computed
with ActiveValue.createValue()
for each
get()
call.get
in class Hashtable
key
- the desired keykey
UIDefaults.LazyValue
,
UIDefaults.ActiveValue
,
Hashtable.get(java.lang.Object)
public Object put(Object key, Object value)
key
to value
.
If key
is a string and the new value isn't
equal to the old one, fire a PropertyChangeEvent
.
If value is null
, the key is removed from the table.put
in class Hashtable
key
- the unique Object
who's value will be used
to retrieve the data value associated with itvalue
- the new Object
to store as data under
that keyObject
value, or null
putDefaults(java.lang.Object[])
,
Hashtable.put(java.lang.Object, java.lang.Object)
public void putDefaults(Object[] keyValueList)
PropertyChangeEvent
.
The events oldValue and newValue will be null
and its
propertyName
will be "UIDefaults".keyValueList
- an array of key/value pairsput(java.lang.Object, java.lang.Object)
,
Hashtable.put(java.lang.Object, java.lang.Object)
public Font getFont(Object key)
key
is a Font
return it,
otherwise return null
.key
- the desired keykey
is a Font
,
return the Font
object; otherwise return
null
public Color getColor(Object key)
key
is a Color
return it,
otherwise return null
.key
- the desired keykey
is a Color
,
return the Color
object; otherwise return
null
public Icon getIcon(Object key)
key
is an Icon
return it,
otherwise return null
.key
- the desired keykey
is an Icon
,
return the Icon
object; otherwise return
null
public Border getBorder(Object key)
key
is a Border
return it,
otherwise return null
.key
- the desired keykey
is a Border
,
return the Border
object; otherwise return
null
public String getString(Object key)
key
is a String
return it,
otherwise return null
.key
- the desired keykey
is a String
,
return the String
object; otherwise return
null
public int getInt(Object key)
key
is an Integer
return its
integer value, otherwise return 0.key
- the desired keykey
is an Integer
,
return its value, otherwise return 0public Insets getInsets(Object key)
key
is an Insets
return it,
otherwise return null
.key
- the desired keykey
is an Insets
,
return the Insets
object; otherwise return
null
public Dimension getDimension(Object key)
key
is a Dimension
return it,
otherwise return null
.key
- the desired keykey
is a Dimension
,
return the Dimension
object; otherwise return
null
public Class getUIClass(String uiClassID, ClassLoader uiClassLoader)
get(uidClassID)
must be the
String
name of a
class that implements the corresponding ComponentUI
class. If the class hasn't been loaded before, this method looks
up the class with uiClassLoader.loadClass()
if a non
null
class loader is provided, classForName()
otherwise.
If a mapping for uiClassID
exists or if the specified
class can't be found, return null
.
This method is used by getUI
, it's usually
not neccessary to call it directly.
uiClassID
- a string containing the class IDuiClassLoader
- the object which will load the classClass.forName(get(uidClassID))
getUI(javax.swing.JComponent)
public Class getUIClass(String uiClassID)
uiClassID
- a string containing the class IDgetUIClass(uiClassID, null)
protected void getUIError(String msg)
getUI()
fails for any reason,
it calls this method before returning null
.
Subclasses may choose to do more or less here.msg
- message string to printgetUI(javax.swing.JComponent)
public ComponentUI getUI(JComponent target)
ComponentUI
implementation for the
specified component. In other words create the look
and feel specific delegate object for target
.
This is done in two steps:
ComponentUI
implementation
class under the value returned by target.getUIClassID()
.
createUI()
method to construct a look and feel delegate.
target
- the JComponent
which needs a UIComponentUI
objectpublic void addPropertyChangeListener(PropertyChangeListener listener)
PropertyChangeListener
to the listener list.
The listener is registered for all properties.
A PropertyChangeEvent
will get fired whenever a default
is changed.
listener
- the PropertyChangeListener
to be addedPropertyChangeSupport
public void removePropertyChangeListener(PropertyChangeListener listener)
PropertyChangeListener
from the listener list.
This removes a PropertyChangeListener
that was registered
for all properties.listener
- the PropertyChangeListener
to be removedPropertyChangeSupport
protected void firePropertyChange(String propertyName, Object oldValue, Object newValue)
PropertyChangeEvent
x
listener list isn't empty, then fire a
PropertyChange
event to each listener.propertyName
- the programmatic name of the property
that was changedoldValue
- the old value of the propertynewValue
- the new value of the propertyPropertyChangeSupport
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JavaTM 2 Platform Std. Ed. v1.3 |
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