- java.lang.Object
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- java.awt.Component
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- java.awt.Container
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- java.awt.Window
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- java.awt.Frame
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- javax.swing.JFrame
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- All Implemented Interfaces:
ImageObserver,MenuContainer,Serializable,Accessible,RootPaneContainer,WindowConstants
@JavaBean(defaultProperty="JMenuBar", description="A toplevel window which can be minimized to an icon.") public class JFrame extends Frame implements WindowConstants, Accessible, RootPaneContainer
An extended version ofjava.awt.Framethat adds support for the JFC/Swing component architecture. You can find task-oriented documentation about usingJFramein The Java Tutorial, in the section How to Make Frames.The
JFrameclass is slightly incompatible withFrame. Like all other JFC/Swing top-level containers, aJFramecontains aJRootPaneas its only child. The content pane provided by the root pane should, as a rule, contain all the non-menu components displayed by theJFrame. This is different from the AWTFramecase. As a convenience, theadd,remove, andsetLayoutmethods of this class are overridden, so that they delegate calls to the corresponding methods of theContentPane. For example, you can add a child component to a frame as follows:frame.add(child);And the child will be added to the contentPane. The content pane will always be non-null. Attempting to set it to null will cause the JFrame to throw an exception. The default content pane will have a BorderLayout manager set on it. Refer toRootPaneContainerfor details on adding, removing and setting theLayoutManagerof aJFrame.Unlike a
Frame, aJFramehas some notion of how to respond when the user attempts to close the window. The default behavior is to simply hide the JFrame when the user closes the window. To change the default behavior, you invoke the methodsetDefaultCloseOperation(int). To make theJFramebehave the same as aFrameinstance, usesetDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE).For more information on content panes and other features that root panes provide, see Using Top-Level Containers in The Java Tutorial.
In a multi-screen environment, you can create a
JFrameon a different screen device. SeeFramefor more information.Warning: Swing is not thread safe. For more information see Swing's Threading Policy.
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™ has been added to the
java.beanspackage. Please seeXMLEncoder.
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Nested Class Summary
Nested Classes Modifier and Type Class Description protected classJFrame.AccessibleJFrameThis class implements accessibility support for theJFrameclass.-
Nested classes/interfaces declared in class java.awt.Frame
Frame.AccessibleAWTFrame
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Nested classes/interfaces declared in class java.awt.Window
Window.AccessibleAWTWindow, Window.Type
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Nested classes/interfaces declared in class java.awt.Container
Container.AccessibleAWTContainer
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Nested classes/interfaces declared in class java.awt.Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
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Field Summary
Fields Modifier and Type Field Description protected AccessibleContextaccessibleContextThe accessible context property.protected JRootPanerootPaneTheJRootPaneinstance that manages thecontentPaneand optionalmenuBarfor this frame, as well as theglassPane.protected booleanrootPaneCheckingEnabledIf true then calls toaddandsetLayoutwill be forwarded to thecontentPane.-
Fields declared in class java.awt.Frame
CROSSHAIR_CURSOR, DEFAULT_CURSOR, E_RESIZE_CURSOR, HAND_CURSOR, ICONIFIED, MAXIMIZED_BOTH, MAXIMIZED_HORIZ, MAXIMIZED_VERT, MOVE_CURSOR, N_RESIZE_CURSOR, NE_RESIZE_CURSOR, NORMAL, NW_RESIZE_CURSOR, S_RESIZE_CURSOR, SE_RESIZE_CURSOR, SW_RESIZE_CURSOR, TEXT_CURSOR, W_RESIZE_CURSOR, WAIT_CURSOR
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Fields declared in class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
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Fields declared in interface java.awt.image.ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
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Fields declared in interface javax.swing.WindowConstants
DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, EXIT_ON_CLOSE, HIDE_ON_CLOSE
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Constructor Summary
Constructors Constructor Description JFrame()Constructs a new frame that is initially invisible.JFrame(GraphicsConfiguration gc)Creates aFramein the specifiedGraphicsConfigurationof a screen device and a blank title.JFrame(String title)Creates a new, initially invisibleFramewith the specified title.JFrame(String title, GraphicsConfiguration gc)Creates aJFramewith the specified title and the specifiedGraphicsConfigurationof a screen device.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected voidaddImpl(Component comp, Object constraints, int index)Adds the specified childComponent.protected JRootPanecreateRootPane()Called by the constructor methods to create the defaultrootPane.protected voidframeInit()Called by the constructors to init theJFrameproperly.AccessibleContextgetAccessibleContext()Gets the AccessibleContext associated with this JFrame.ContainergetContentPane()Returns thecontentPaneobject for this frame.intgetDefaultCloseOperation()Returns the operation that occurs when the user initiates a "close" on this frame.ComponentgetGlassPane()Returns theglassPaneobject for this frame.GraphicsgetGraphics()Creates a graphics context for this component.JMenuBargetJMenuBar()Returns the menubar set on this frame.JLayeredPanegetLayeredPane()Returns thelayeredPaneobject for this frame.JRootPanegetRootPane()Returns therootPaneobject for this frame.TransferHandlergetTransferHandler()Gets thetransferHandlerproperty.static booleanisDefaultLookAndFeelDecorated()Returns true if newly createdJFrames should have their Window decorations provided by the current look and feel.protected booleanisRootPaneCheckingEnabled()Returns whether calls toaddandsetLayoutare forwarded to thecontentPane.protected StringparamString()Returns a string representation of thisJFrame.protected voidprocessWindowEvent(WindowEvent e)Processes window events occurring on this component.voidremove(Component comp)Removes the specified component from the container.voidrepaint(long time, int x, int y, int width, int height)Repaints the specified rectangle of this component withintimemilliseconds.voidsetContentPane(Container contentPane)Sets thecontentPaneproperty.voidsetDefaultCloseOperation(int operation)Sets the operation that will happen by default when the user initiates a "close" on this frame.static voidsetDefaultLookAndFeelDecorated(boolean defaultLookAndFeelDecorated)Provides a hint as to whether or not newly createdJFrames should have their Window decorations (such as borders, widgets to close the window, title...) provided by the current look and feel.voidsetGlassPane(Component glassPane)Sets theglassPaneproperty.voidsetJMenuBar(JMenuBar menubar)Sets the menubar for this frame.voidsetLayeredPane(JLayeredPane layeredPane)Sets thelayeredPaneproperty.voidsetLayout(LayoutManager manager)Sets theLayoutManager.protected voidsetRootPane(JRootPane root)Sets therootPaneproperty.protected voidsetRootPaneCheckingEnabled(boolean enabled)Sets whether calls toaddandsetLayoutare forwarded to thecontentPane.voidsetTransferHandler(TransferHandler newHandler)Sets thetransferHandlerproperty, which is a mechanism to support transfer of data into this component.voidupdate(Graphics g)Just callspaint(g).-
Methods declared in class java.awt.Frame
addNotify, getCursorType, getExtendedState, getFrames, getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle, isResizable, isUndecorated, remove, removeNotify, setCursor, setExtendedState, setMaximizedBounds, setMenuBar, setResizable, setState, setTitle, setUndecorated
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Methods declared in class java.awt.Window
addPropertyChangeListener, addPropertyChangeListener, addWindowFocusListener, addWindowListener, addWindowStateListener, applyResourceBundle, applyResourceBundle, createBufferStrategy, createBufferStrategy, dispose, getBackground, getBufferStrategy, getFocusableWindowState, getFocusCycleRootAncestor, getFocusOwner, getFocusTraversalKeys, getIconImages, getInputContext, getListeners, getLocale, getModalExclusionType, getMostRecentFocusOwner, getOpacity, getOwnedWindows, getOwner, getOwnerlessWindows, getShape, getToolkit, getType, getWarningString, getWindowFocusListeners, getWindowListeners, getWindows, getWindowStateListeners, hide, isActive, isAlwaysOnTop, isAlwaysOnTopSupported, isAutoRequestFocus, isFocusableWindow, isFocusCycleRoot, isFocused, isLocationByPlatform, isOpaque, isShowing, isValidateRoot, pack, paint, postEvent, processEvent, processWindowFocusEvent, processWindowStateEvent, removeWindowFocusListener, removeWindowListener, removeWindowStateListener, reshape, setAlwaysOnTop, setAutoRequestFocus, setBackground, setBounds, setBounds, setCursor, setFocusableWindowState, setFocusCycleRoot, setIconImage, setIconImages, setLocation, setLocation, setLocationByPlatform, setLocationRelativeTo, setMinimumSize, setModalExclusionType, setOpacity, setShape, setSize, setSize, setType, setVisible, show, toBack, toFront
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Methods declared in class java.awt.Container
add, add, add, add, add, addContainerListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusDownCycle, validate, validateTree
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Methods declared in 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, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, requestFocusInWindow, resize, resize, revalidate, setComponentOrientation, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setMaximumSize, setMixingCutoutShape, setName, setPreferredSize, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
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Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods declared in interface java.awt.MenuContainer
getFont, postEvent
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Field Detail
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rootPane
protected JRootPane rootPane
TheJRootPaneinstance that manages thecontentPaneand optionalmenuBarfor this frame, as well as theglassPane.- See Also:
JRootPane,RootPaneContainer
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rootPaneCheckingEnabled
protected boolean rootPaneCheckingEnabled
If true then calls toaddandsetLayoutwill be forwarded to thecontentPane. This is initially false, but is set to true when theJFrameis constructed.
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accessibleContext
protected AccessibleContext accessibleContext
The accessible context property.
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Constructor Detail
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JFrame
public JFrame() throws HeadlessExceptionConstructs a new frame that is initially invisible.This constructor sets the component's locale property to the value returned by
JComponent.getDefaultLocale.- Throws:
HeadlessException- if GraphicsEnvironment.isHeadless() returns true.- See Also:
GraphicsEnvironment.isHeadless(),Component.setSize(int, int),Component.setVisible(boolean),JComponent.getDefaultLocale()
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JFrame
public JFrame(GraphicsConfiguration gc)
Creates aFramein the specifiedGraphicsConfigurationof a screen device and a blank title.This constructor sets the component's locale property to the value returned by
JComponent.getDefaultLocale.- Parameters:
gc- theGraphicsConfigurationthat is used to construct the newFrame; ifgcisnull, the system defaultGraphicsConfigurationis assumed- Throws:
IllegalArgumentException- ifgcis not from a screen device. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true.- Since:
- 1.3
- See Also:
GraphicsEnvironment.isHeadless(),JComponent.getDefaultLocale()
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JFrame
public JFrame(String title) throws HeadlessException
Creates a new, initially invisibleFramewith the specified title.This constructor sets the component's locale property to the value returned by
JComponent.getDefaultLocale.- Parameters:
title- the title for the frame- Throws:
HeadlessException- if GraphicsEnvironment.isHeadless() returns true.- See Also:
GraphicsEnvironment.isHeadless(),Component.setSize(int, int),Component.setVisible(boolean),JComponent.getDefaultLocale()
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JFrame
public JFrame(String title, GraphicsConfiguration gc)
Creates aJFramewith the specified title and the specifiedGraphicsConfigurationof a screen device.This constructor sets the component's locale property to the value returned by
JComponent.getDefaultLocale.- Parameters:
title- the title to be displayed in the frame's border. Anullvalue is treated as an empty string, "".gc- theGraphicsConfigurationthat is used to construct the newJFramewith; ifgcisnull, the system defaultGraphicsConfigurationis assumed- Throws:
IllegalArgumentException- ifgcis not from a screen device. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true.- Since:
- 1.3
- See Also:
GraphicsEnvironment.isHeadless(),JComponent.getDefaultLocale()
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Method Detail
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frameInit
protected void frameInit()
Called by the constructors to init theJFrameproperly.
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createRootPane
protected JRootPane createRootPane()
Called by the constructor methods to create the defaultrootPane.- Returns:
- a new
JRootPane
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processWindowEvent
protected void processWindowEvent(WindowEvent e)
Processes window events occurring on this component. Hides the window or disposes of it, as specified by the setting of thedefaultCloseOperationproperty.- Overrides:
processWindowEventin classWindow- Parameters:
e- the window event- See Also:
setDefaultCloseOperation(int),Window.processWindowEvent(java.awt.event.WindowEvent)
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setDefaultCloseOperation
@BeanProperty(preferred=true, enumerationValues={"WindowConstants.DO_NOTHING_ON_CLOSE","WindowConstants.HIDE_ON_CLOSE","WindowConstants.DISPOSE_ON_CLOSE","WindowConstants.EXIT_ON_CLOSE"}, description="The frame\'s default close operation.") public void setDefaultCloseOperation(int operation)
Sets the operation that will happen by default when the user initiates a "close" on this frame. You must specify one of the following choices:
DO_NOTHING_ON_CLOSE(defined inWindowConstants): Don't do anything; require the program to handle the operation in thewindowClosingmethod of a registeredWindowListenerobject.HIDE_ON_CLOSE(defined inWindowConstants): Automatically hide the frame after invoking any registeredWindowListenerobjects.DISPOSE_ON_CLOSE(defined inWindowConstants): Automatically hide and dispose the frame after invoking any registeredWindowListenerobjects.EXIT_ON_CLOSE(defined inWindowConstants): Exit the application using theSystemexitmethod. Use this only in applications.
The value is set to
HIDE_ON_CLOSEby default. Changes to the value of this property cause the firing of a property change event, with property name "defaultCloseOperation".Note: When the last displayable window within the Java virtual machine (VM) is disposed of, the VM may terminate. See AWT Threading Issues for more information.
- Parameters:
operation- the operation which should be performed when the user closes the frame- Throws:
IllegalArgumentException- if defaultCloseOperation value isn't one of the above valid valuesSecurityException- ifEXIT_ON_CLOSEhas been specified and theSecurityManagerwill not allow the caller to invokeSystem.exit- See Also:
Window.addWindowListener(java.awt.event.WindowListener),getDefaultCloseOperation(),WindowConstants,Runtime.exit(int)
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getDefaultCloseOperation
public int getDefaultCloseOperation()
Returns the operation that occurs when the user initiates a "close" on this frame.- Returns:
- an integer indicating the window-close operation
- See Also:
setDefaultCloseOperation(int)
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setTransferHandler
@BeanProperty(hidden=true, description="Mechanism for transfer of data into the component") public void setTransferHandler(TransferHandler newHandler)
Sets thetransferHandlerproperty, which is a mechanism to support transfer of data into this component. Usenullif the component does not support data transfer operations.If the system property
suppressSwingDropSupportisfalse(the default) and the current drop target on this component is eithernullor not a user-set drop target, this method will change the drop target as follows: IfnewHandlerisnullit will clear the drop target. If notnullit will install a newDropTarget.Note: When used with
JFrame,TransferHandleronly provides data import capability, as the data export related methods are currently typed toJComponent.Please see How to Use Drag and Drop and Data Transfer, a section in The Java Tutorial, for more information.
- Parameters:
newHandler- the newTransferHandler- Since:
- 1.6
- See Also:
TransferHandler,getTransferHandler(),Component.setDropTarget(java.awt.dnd.DropTarget)
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getTransferHandler
public TransferHandler getTransferHandler()
Gets thetransferHandlerproperty.- Returns:
- the value of the
transferHandlerproperty - Since:
- 1.6
- See Also:
TransferHandler,setTransferHandler(javax.swing.TransferHandler)
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update
public void update(Graphics g)
Just callspaint(g). This method was overridden to prevent an unnecessary call to clear the background.- Overrides:
updatein classContainer- Parameters:
g- the Graphics context in which to paint- See Also:
Component.update(Graphics)
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setJMenuBar
@BeanProperty(bound=false, hidden=true, description="The menubar for accessing pulldown menus from this frame.") public void setJMenuBar(JMenuBar menubar)
Sets the menubar for this frame.- Parameters:
menubar- the menubar being placed in the frame- See Also:
getJMenuBar()
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getJMenuBar
public JMenuBar getJMenuBar()
Returns the menubar set on this frame.- Returns:
- the menubar for this frame
- See Also:
setJMenuBar(javax.swing.JMenuBar)
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isRootPaneCheckingEnabled
protected boolean isRootPaneCheckingEnabled()
Returns whether calls toaddandsetLayoutare forwarded to thecontentPane.- Returns:
- true if
addandsetLayoutare forwarded; false otherwise - See Also:
addImpl(java.awt.Component, java.lang.Object, int),setLayout(java.awt.LayoutManager),setRootPaneCheckingEnabled(boolean),RootPaneContainer
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setRootPaneCheckingEnabled
@BeanProperty(hidden=true, description="Whether the add and setLayout methods are forwarded") protected void setRootPaneCheckingEnabled(boolean enabled)
Sets whether calls toaddandsetLayoutare forwarded to thecontentPane.- Parameters:
enabled- true ifaddandsetLayoutare forwarded, false if they should operate directly on theJFrame.- See Also:
addImpl(java.awt.Component, java.lang.Object, int),setLayout(java.awt.LayoutManager),isRootPaneCheckingEnabled(),RootPaneContainer
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addImpl
protected void addImpl(Component comp, Object constraints, int index)
Adds the specified childComponent. This method is overridden to conditionally forward calls to thecontentPane. By default, children are added to thecontentPaneinstead of the frame, refer toRootPaneContainerfor details.- Overrides:
addImplin classContainer- Parameters:
comp- the component to be enhancedconstraints- the constraints to be respectedindex- the index- Throws:
IllegalArgumentException- ifindexis invalidIllegalArgumentException- if adding the container's parent to itselfIllegalArgumentException- if adding a window to a container- See Also:
setRootPaneCheckingEnabled(boolean),RootPaneContainer
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remove
public void remove(Component comp)
Removes the specified component from the container. Ifcompis not therootPane, this will forward the call to thecontentPane. This will do nothing ifcompis not a child of theJFrameorcontentPane.- Overrides:
removein classContainer- Parameters:
comp- the component to be removed- Throws:
NullPointerException- ifcompis null- See Also:
Container.add(java.awt.Component),RootPaneContainer
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setLayout
public void setLayout(LayoutManager manager)
Sets theLayoutManager. Overridden to conditionally forward the call to thecontentPane. Refer toRootPaneContainerfor more information.- Overrides:
setLayoutin classContainer- Parameters:
manager- theLayoutManager- See Also:
setRootPaneCheckingEnabled(boolean),RootPaneContainer
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getRootPane
@BeanProperty(bound=false, hidden=true, description="the RootPane object for this frame.") public JRootPane getRootPane()
Returns therootPaneobject for this frame.- Specified by:
getRootPanein interfaceRootPaneContainer- Returns:
- the
rootPaneproperty - See Also:
setRootPane(javax.swing.JRootPane),RootPaneContainer.getRootPane()
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setRootPane
protected void setRootPane(JRootPane root)
Sets therootPaneproperty. This method is called by the constructor.- Parameters:
root- therootPaneobject for this frame- See Also:
getRootPane()
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getContentPane
public Container getContentPane()
Returns thecontentPaneobject for this frame.- Specified by:
getContentPanein interfaceRootPaneContainer- Returns:
- the
contentPaneproperty - See Also:
setContentPane(java.awt.Container),RootPaneContainer.getContentPane()
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setContentPane
@BeanProperty(bound=false, hidden=true, description="The client area of the frame where child components are normally inserted.") public void setContentPane(Container contentPane)
Sets thecontentPaneproperty. This method is called by the constructor.Swing's painting architecture requires an opaque
JComponentin the containment hierarchy. This is typically provided by the content pane. If you replace the content pane it is recommended you replace it with an opaqueJComponent.- Specified by:
setContentPanein interfaceRootPaneContainer- Parameters:
contentPane- thecontentPaneobject for this frame- Throws:
IllegalComponentStateException- (a runtime exception) if the content pane parameter isnull- See Also:
getContentPane(),RootPaneContainer.setContentPane(java.awt.Container),JRootPane
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getLayeredPane
public JLayeredPane getLayeredPane()
Returns thelayeredPaneobject for this frame.- Specified by:
getLayeredPanein interfaceRootPaneContainer- Returns:
- the
layeredPaneproperty - See Also:
setLayeredPane(javax.swing.JLayeredPane),RootPaneContainer.getLayeredPane()
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setLayeredPane
@BeanProperty(bound=false, hidden=true, description="The pane that holds the various frame layers.") public void setLayeredPane(JLayeredPane layeredPane)
Sets thelayeredPaneproperty. This method is called by the constructor.- Specified by:
setLayeredPanein interfaceRootPaneContainer- Parameters:
layeredPane- thelayeredPaneobject for this frame- Throws:
IllegalComponentStateException- (a runtime exception) if the layered pane parameter isnull- See Also:
getLayeredPane(),RootPaneContainer.setLayeredPane(javax.swing.JLayeredPane)
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getGlassPane
public Component getGlassPane()
Returns theglassPaneobject for this frame.- Specified by:
getGlassPanein interfaceRootPaneContainer- Returns:
- the
glassPaneproperty - See Also:
setGlassPane(java.awt.Component),RootPaneContainer.getGlassPane()
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setGlassPane
@BeanProperty(bound=false, hidden=true, description="A transparent pane used for menu rendering.") public void setGlassPane(Component glassPane)
Sets theglassPaneproperty. This method is called by the constructor.- Specified by:
setGlassPanein interfaceRootPaneContainer- Parameters:
glassPane- theglassPaneobject for this frame- See Also:
getGlassPane(),RootPaneContainer.setGlassPane(java.awt.Component)
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getGraphics
@BeanProperty(bound=false) public Graphics getGraphics()
Creates a graphics context for this component. This method will returnnullif this component is currently not displayable.- Overrides:
getGraphicsin classComponent- Returns:
- a graphics context for this component, or
nullif it has none - Since:
- 1.6
- See Also:
Component.paint(java.awt.Graphics)
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repaint
public void repaint(long time, int x, int y, int width, int height)Repaints the specified rectangle of this component withintimemilliseconds. Refer toRepaintManagerfor details on how the repaint is handled.- Overrides:
repaintin classComponent- Parameters:
time- maximum time in milliseconds before updatex- the x coordinatey- the y coordinatewidth- the widthheight- the height- Since:
- 1.6
- See Also:
RepaintManager
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setDefaultLookAndFeelDecorated
public static void setDefaultLookAndFeelDecorated(boolean defaultLookAndFeelDecorated)
Provides a hint as to whether or not newly createdJFrames should have their Window decorations (such as borders, widgets to close the window, title...) provided by the current look and feel. IfdefaultLookAndFeelDecoratedis true, the currentLookAndFeelsupports providing window decorations, and the current window manager supports undecorated windows, then newly createdJFrames will have their Window decorations provided by the currentLookAndFeel. Otherwise, newly createdJFrames will have their Window decorations provided by the current window manager.You can get the same effect on a single JFrame by doing the following:
JFrame frame = new JFrame(); frame.setUndecorated(true); frame.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);- Parameters:
defaultLookAndFeelDecorated- A hint as to whether or not current look and feel should provide window decorations- Since:
- 1.4
- See Also:
LookAndFeel.getSupportsWindowDecorations()
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isDefaultLookAndFeelDecorated
public static boolean isDefaultLookAndFeelDecorated()
Returns true if newly createdJFrames should have their Window decorations provided by the current look and feel. This is only a hint, as certain look and feels may not support this feature.- Returns:
- true if look and feel should provide Window decorations.
- Since:
- 1.4
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paramString
protected String paramString()
Returns a string representation of thisJFrame. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not benull.- Overrides:
paramStringin classFrame- Returns:
- a string representation of this
JFrame
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getAccessibleContext
public AccessibleContext getAccessibleContext()
Gets the AccessibleContext associated with this JFrame. For JFrames, the AccessibleContext takes the form of an AccessibleJFrame. A new AccessibleJFrame instance is created if necessary.- Specified by:
getAccessibleContextin interfaceAccessible- Overrides:
getAccessibleContextin classFrame- Returns:
- an AccessibleJFrame that serves as the AccessibleContext of this JFrame
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