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java.awt
Class Panel  

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Panel

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.image.ImageObserver, MenuContainer, java.io.Serializable

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public class Panel

extends Container

implements javax.accessibility.Accessible

A panel is a simple container class. It's default layout is the FlowLayout manager.

Since:

1.0

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Nested Class Summary
protected  class	Panel.AccessibleAWTPanel           This class provides accessibility support for Panels, and is the runtime type returned by Component.getAccessibleContext() 55 .

 

Nested classes inherited from class java.awt.Container

Container.AccessibleAWTContainer, Container.GfxPaintAllVisitor, Container.GfxPaintVisitor, Container.GfxPrintAllVisitor, Container.GfxPrintVisitor, Container.GfxVisitor

 

Nested classes inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BltBufferStrategy, Component.FlipBufferStrategy, Component.HeavyweightInLightweightListener

 

Field Summary
private  javax.accessibility.AccessibleContext	context           The cached accessible context.
private  boolean	initialSystemUpdateDone           Flag set when the first system-requested paint event is dispatched.
private  boolean	initialUpdateConsumed           Flag set when the first application-requested paint event is consumed.
private static long	next_panel_number
private static long	serialVersionUID           Compatible with JDK 1.0+.

 

Fields inherited from class java.awt.Container

component, containerListener, containerSerializedDataVersion, focusCycleRoot, focusTraversalKeys, layoutMgr, maxSize, ncomponents

 

Fields inherited from class java.awt.Component

accessibleContext, background, BOTTOM_ALIGNMENT, bufferStrategy, CENTER_ALIGNMENT, changeSupport, componentListener, componentSerializedDataVersion, cursor, dropTarget, enabled, eventMask, focusable, focusListener, focusTraversalKeysEnabled, font, foreground, graphicsConfig, height, hierarchyBoundsListener, hierarchyListener, ignoreRepaint, inputMethodListener, isFocusTraversableOverridden, isPacked, keyListener, LEFT_ALIGNMENT, locale, minSize, mouseListener, mouseMotionListener, mouseWheelListener, name, nameExplicitlySet, newEventsOnly, orientation, parent, peer, peerFont, popups, prefSize, RIGHT_ALIGNMENT, TOP_ALIGNMENT, treeLock, valid, visible, width, x, y

 

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

 

Constructor Summary

Panel()           Initializes a new instance of Panel that has a default layout manager of FlowLayout.

Panel(LayoutManager layoutManager)           Initializes a new instance of Panel with the specified layout manager.

 

Method Summary
void	addNotify()           Notifies this object to create its native peer.
(package private)  java.lang.String	generateName()           Generate a unique name for this panel.
javax.accessibility.AccessibleContext	getAccessibleContext()           Gets the AccessibleContext associated with this panel, creating one if necessary.
private static long	getUniqueLong()

 

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, dispatchEventImpl, doLayout, eventTypeEnabled, findComponentAt, findComponentAt, findNextFocusComponent, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, invalidateTree, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFont, setLayout, transferFocusDownCycle, update, validate, validateTree

 

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getGraphicsConfigurationImpl, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setPeer, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, translateEvent

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

serialVersionUID

private static final long serialVersionUID

Compatible with JDK 1.0+.

See Also:

Constant Field Values

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context

private transient javax.accessibility.AccessibleContext context

The cached accessible context.

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initialSystemUpdateDone

private transient boolean initialSystemUpdateDone

Flag set when the first system-requested paint event is dispatched.

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initialUpdateConsumed

private transient boolean initialUpdateConsumed

Flag set when the first application-requested paint event is consumed.

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next_panel_number

private static transient long next_panel_number

Constructor Detail

Panel

public Panel()

Initializes a new instance of Panel that has a default layout manager of FlowLayout.

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Panel

public Panel(LayoutManager layoutManager)

Initializes a new instance of Panel with the specified layout manager.

Since:

1.1

Method Detail

addNotify

public void addNotify()

Notifies this object to create its native peer.

Overrides:

addNotify in class Container

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getAccessibleContext

public javax.accessibility.AccessibleContext getAccessibleContext()

Gets the AccessibleContext associated with this panel, creating one if necessary. This always returns an instance of Panel.AccessibleAWTPanel.

Specified by:

getAccessibleContext in interface javax.accessibility.Accessible

Overrides:

getAccessibleContext in class Component

Since:

1.3

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generateName

java.lang.String generateName()

Generate a unique name for this panel.

Overrides:

generateName in class Component

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getUniqueLong

private static long getUniqueLong()

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Home >> All >> java >> [ awt overview ]	PREV CLASS  NEXT CLASS
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