Java Platform 1.2
Beta 4

Class com.sun.java.swing.JPanel

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--com.sun.java.swing.JComponent
                    |
                    +--com.sun.java.swing.JPanel

public class JPanel
extends JComponent
implements Accessible
JPanel is a generic lightweight container.

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 Swing1.0 applications. It will not be possible to load serialized Swing1.0 objects with future releases of Swing. The JDK1.2 release of Swing will be the compatibility baseline for the serialized form of Swing objects.

See Also:
Mixing Heavy and Light Components, Serialized Form

Inner Class Summary
protected   JPanel.AccessibleJPanel
          The class used to obtain the accessible role for this object.
 
Inner classes inherited from class com.sun.java.swing.JComponent
JComponent.AccessibleJComponent
 
Fields inherited from class com.sun.java.swing.JComponent
accessibleContext , listenerList , TOOL_TIP_TEXT_KEY , ui , UNDEFINED_CONDITION , WHEN_ANCESTOR_OF_FOCUSED_COMPONENT , WHEN_FOCUSED , WHEN_IN_FOCUSED_WINDOW
 
Fields inherited from class java.awt.Component
BOTTOM_ALIGNMENT , CENTER_ALIGNMENT , LEFT_ALIGNMENT , RIGHT_ALIGNMENT , TOP_ALIGNMENT
 
Constructor Summary
JPanel()
          Create a new JPanel with a double buffer and a flow layout
JPanel(boolean isDoubleBuffered)
          Create a new JPanel with FlowLayout and the specified buffering strategy.
JPanel(LayoutManager layout, boolean isDoubleBuffered)
          Creates a new JPanel with the specified layout manager and buffering strategy.
JPanel(LayoutManager layout)
          Create a new buffered JPanel with the specified layout manager
 
Method Summary
 AccessibleContext getAccessibleContext()
          Get the AccessibleContext associated with this JComponent
 String getUIClassID()
          Returns a string that specifies the name of the L&F class that renders this component.
 void updateUI()
          Notification from the UIFactory that the L&F has changed.
 
Methods inherited from class com.sun.java.swing.JComponent
addAncestorListener , addNotify , addPropertyChangeListener , addVetoableChangeListener , computeVisibleRect , contains , createToolTip , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , fireVetoableChange , getActionForKeyStroke , getAlignmentX , getAlignmentY , getAutoscrolls , getBorder , getBounds , getClientProperty , getComponentGraphics , getConditionForKeyStroke , getDebugGraphicsOptions , getGraphics , getHeight , getInsets , getInsets , getLocation , getMaximumSize , getMinimumSize , getNextFocusableComponent , getPreferredSize , getRegisteredKeyStrokes , getRootPane , getSize , getToolTipLocation , getToolTipText , getToolTipText , getTopLevelAncestor , getVisibleRect , getWidth , getX , getY , grabFocus , hasFocus , isDoubleBuffered , isFocusCycleRoot , isFocusTraversable , isLightweightComponent , isManagingFocus , isOpaque , isOptimizedDrawingEnabled , isPaintingTile , isRequestFocusEnabled , isValidateRoot , paint , paintBorder , paintChildren , paintComponent , paintImmediately , paintImmediately , processComponentKeyEvent , processFocusEvent , processKeyEvent , processMouseMotionEvent , putClientProperty , registerKeyboardAction , registerKeyboardAction , removeAncestorListener , removeNotify , removePropertyChangeListener , removeVetoableChangeListener , repaint , repaint , requestDefaultFocus , requestFocus , resetKeyboardActions , reshape , revalidate , scrollRectToVisible , setAlignmentX , setAlignmentY , setAutoscrolls , setBorder , setDebugGraphicsOptions , setDoubleBuffered , setEnabled , setMaximumSize , setMinimumSize , setNextFocusableComponent , setOpaque , setPreferredSize , setRequestFocusEnabled , setToolTipText , setUI , setVisible , unregisterKeyboardAction , update
 
Methods inherited from class java.awt.Container
add , add , add , add , add , addContainerListener , addImpl , countComponents , deliverEvent , doLayout , findComponentAt , findComponentAt , getComponent , getComponentAt , getComponentAt , getComponentCount , getComponents , getLayout , insets , invalidate , isAncestorOf , layout , list , list , locate , minimumSize , paintComponents , paramString , preferredSize , print , printComponents , processContainerEvent , processEvent , remove , remove , removeAll , removeContainerListener , setLayout , validate , validateTree
 
Methods inherited from class java.awt.Component
action , add , addComponentListener , addFocusListener , addInputMethodListener , addKeyListener , addMouseListener , addMouseMotionListener , addPropertyChangeListener , bounds , checkImage , checkImage , coalesceEvents , contains , createImage , createImage , disable , disableEvents , dispatchEvent , enable , enable , enableEvents , enableInputMethods , getBackground , getBounds , getColorModel , getComponentOrientation , getCursor , getDropTarget , getFont , getFontMetrics , getForeground , getInputContext , getInputMethodRequests , getLocale , getLocation , getLocationOnScreen , getName , getParent , getPeer , getSize , getToolkit , getTreeLock , gotFocus , handleEvent , hide , imageUpdate , inside , isDisplayable , isEnabled , isLightweight , isShowing , isValid , isVisible , keyDown , keyUp , list , list , list , location , lostFocus , mouseDown , mouseDrag , mouseEnter , mouseExit , mouseMove , mouseUp , move , nextFocus , paintAll , postEvent , prepareImage , prepareImage , printAll , processComponentEvent , processInputMethodEvent , processMouseEvent , remove , removeComponentListener , removeFocusListener , removeInputMethodListener , removeKeyListener , removeMouseListener , removeMouseMotionListener , removePropertyChangeListener , repaint , repaint , repaint , resize , resize , setBackground , setBounds , setBounds , setComponentOrientation , setCursor , setDropTarget , setFont , setForeground , setLocale , setLocation , setLocation , setName , setSize , setSize , show , show , size , toString , transferFocus
 
Methods inherited from class java.lang.Object
clone , equals , finalize , getClass , hashCode , notify , notifyAll , wait , wait , wait
 

Constructor Detail

JPanel

public JPanel(LayoutManager layout,
              boolean isDoubleBuffered)
Creates a new JPanel with the specified layout manager and buffering strategy.
Parameters:
layout - the LayoutManager to use
isDoubleBuffered - a boolean, true for double-buffering, which uses additional memory space to achieve fast, flicker-free updates

JPanel

public JPanel(LayoutManager layout)
Create a new buffered JPanel with the specified layout manager
Parameters:
layout - the LayoutManager to use

JPanel

public JPanel(boolean isDoubleBuffered)
Create a new JPanel with FlowLayout and the specified buffering strategy. If isDoubleBuffered is true, the JPanel will use a double buffer.
Parameters:
layout - the LayoutManager to use
isDoubleBuffered - a boolean, true for double-buffering, which uses additional memory space to achieve fast, flicker-free updates

JPanel

public JPanel()
Create a new JPanel with a double buffer and a flow layout
Method Detail

updateUI

public void updateUI()
Notification from the UIFactory that the L&F has changed.
Overrides:
updateUI in class JComponent
See Also:
JComponent.updateUI()

getUIClassID

public String getUIClassID()
Returns a string that specifies the name of the L&F class that renders this component.
Returns:
"PanelUI"
Overrides:
getUIClassID in class JComponent
See Also:
JComponent.getUIClassID(), UIDefaults.getUI(com.sun.java.swing.JComponent)

getAccessibleContext

public AccessibleContext getAccessibleContext()
Get the AccessibleContext associated with this JComponent
Specified by:
getAccessibleContext in interface Accessible
Returns:
the AccessibleContext of this JComponent
Overrides:
getAccessibleContext in class JComponent

Java Platform 1.2
Beta 4

Submit a bug or feature
Submit comments/suggestions about new javadoc look
Java is a trademark or registered trademark of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1998 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.
This documentation was generated with a post-Beta4 version of Javadoc.