Class JFrame
- java.lang.Object
-
- java.awt.Component
-
- java.awt.Container
-
- java.awt.Window
-
- java.awt.Frame
-
- javax.swing.JFrame
- 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 of java.awt.Frame
that adds support for the JFC/Swing component architecture. You can find task-oriented documentation about using JFrame
in The Java Tutorial, in the section How to Make Frames.
The JFrame
class is slightly incompatible with Frame
. Like all other JFC/Swing top-level containers, a JFrame
contains a JRootPane
as its only child. The content pane provided by the root pane should, as a rule, contain all the non-menu components displayed by the JFrame
. This is different from the AWT Frame
case. As a convenience, the add
, remove
, and setLayout
methods of this class are overridden, so that they delegate calls to the corresponding methods of the ContentPane
. 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 to
RootPaneContainer
for details on adding, removing and setting the LayoutManager
of a JFrame
. Unlike a Frame
, a JFrame
has 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 method setDefaultCloseOperation(int)
. To make the JFrame
behave the same as a Frame
instance, use setDefaultCloseOperation(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 JFrame
on a different screen device. See Frame
for 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.beans
package. Please see XMLEncoder
.
- Since:
- 1.2
- See Also:
-
JRootPane
,setDefaultCloseOperation(int)
,WindowListener.windowClosing(java.awt.event.WindowEvent)
,RootPaneContainer
, Serialized Form
Nested Class Summary
Modifier and Type | Class | Description |
---|---|---|
protected class | JFrame.AccessibleJFrame | This class implements accessibility support for the |
Nested classes/interfaces declared in class java.awt.Frame
Frame.AccessibleAWTFrame
Nested classes/interfaces declared in class java.awt.Window
Window.AccessibleAWTWindow, Window.Type
Nested classes/interfaces declared in class java.awt.Container
Container.AccessibleAWTContainer
Nested classes/interfaces declared in class java.awt.Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
Field Summary
Modifier and Type | Field | Description |
---|---|---|
protected AccessibleContext | accessibleContext | The accessible context property. |
protected JRootPane | rootPane | The |
protected boolean | rootPaneCheckingEnabled | If true then calls to |
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
Fields declared in class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
Fields declared in interface java.awt.image.ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
Fields declared in interface javax.swing.WindowConstants
DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, EXIT_ON_CLOSE, HIDE_ON_CLOSE
Constructor Summary
Constructor | Description |
---|---|
JFrame() | Constructs a new frame that is initially invisible. |
JFrame(GraphicsConfiguration gc) | Creates a |
JFrame(String title) | Creates a new, initially invisible |
JFrame(String title,
GraphicsConfiguration gc) | Creates a |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
protected void | addImpl(Component comp,
Object constraints,
int index) | Adds the specified child |
protected JRootPane | createRootPane() | Called by the constructor methods to create the default |
protected void | frameInit() | Called by the constructors to init the |
AccessibleContext | getAccessibleContext() | Gets the AccessibleContext associated with this JFrame. |
Container | getContentPane() | Returns the |
int | getDefaultCloseOperation() | Returns the operation that occurs when the user initiates a "close" on this frame. |
Component | getGlassPane() | Returns the |
Graphics | getGraphics() | Creates a graphics context for this component. |
JMenuBar | getJMenuBar() | Returns the menubar set on this frame. |
JLayeredPane | getLayeredPane() | Returns the |
JRootPane | getRootPane() | Returns the |
TransferHandler | getTransferHandler() | Gets the |
static boolean | isDefaultLookAndFeelDecorated() | Returns true if newly created |
protected boolean | isRootPaneCheckingEnabled() | Returns whether calls to |
protected String | paramString() | Returns a string representation of this |
protected void | processWindowEvent(WindowEvent e) | Processes window events occurring on this component. |
void | remove(Component comp) | Removes the specified component from the container. |
void | repaint(long time,
int x,
int y,
int width,
int height) | Repaints the specified rectangle of this component within |
void | setContentPane(Container contentPane) | Sets the |
void | setDefaultCloseOperation(int operation) | Sets the operation that will happen by default when the user initiates a "close" on this frame. |
static void | setDefaultLookAndFeelDecorated(boolean defaultLookAndFeelDecorated) | Provides a hint as to whether or not newly created |
void | setGlassPane(Component glassPane) | Sets the |
void | setJMenuBar(JMenuBar menubar) | Sets the menubar for this frame. |
void | setLayeredPane(JLayeredPane layeredPane) | Sets the |
void | setLayout(LayoutManager manager) | Sets the |
protected void | setRootPane(JRootPane root) | Sets the |
protected void | setRootPaneCheckingEnabled(boolean enabled) | Sets whether calls to |
void | setTransferHandler(TransferHandler newHandler) | Sets the |
void | update(Graphics g) | Just calls |
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
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
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
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
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods declared in interface java.awt.MenuContainer
getFont, postEvent
Field Detail
rootPane
protected JRootPane rootPane
The JRootPane
instance that manages the contentPane
and optional menuBar
for this frame, as well as the glassPane
.
- See Also:
-
JRootPane
,RootPaneContainer
rootPaneCheckingEnabled
protected boolean rootPaneCheckingEnabled
If true then calls to add
and setLayout
will be forwarded to the contentPane
. This is initially false, but is set to true when the JFrame
is constructed.
accessibleContext
protected AccessibleContext accessibleContext
The accessible context property.
Constructor Detail
JFrame
public JFrame() throws HeadlessException
Constructs 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()
JFrame
public JFrame(GraphicsConfiguration gc)
Creates a Frame
in the specified GraphicsConfiguration
of a screen device and a blank title.
This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale
.
- Parameters:
-
gc
- theGraphicsConfiguration
that is used to construct the newFrame
; ifgc
isnull
, the system defaultGraphicsConfiguration
is assumed - Throws:
-
IllegalArgumentException
- ifgc
is not from a screen device. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true. - Since:
- 1.3
- See Also:
-
GraphicsEnvironment.isHeadless()
,JComponent.getDefaultLocale()
JFrame
public JFrame(String title) throws HeadlessException
Creates a new, initially invisible Frame
with 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()
JFrame
public JFrame(String title, GraphicsConfiguration gc)
Creates a JFrame
with the specified title and the specified GraphicsConfiguration
of 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. Anull
value is treated as an empty string, "". -
gc
- theGraphicsConfiguration
that is used to construct the newJFrame
with; ifgc
isnull
, the system defaultGraphicsConfiguration
is assumed - Throws:
-
IllegalArgumentException
- ifgc
is not from a screen device. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true. - Since:
- 1.3
- See Also:
-
GraphicsEnvironment.isHeadless()
,JComponent.getDefaultLocale()
Method Detail
frameInit
protected void frameInit()
Called by the constructors to init the JFrame
properly.
createRootPane
protected JRootPane createRootPane()
Called by the constructor methods to create the default rootPane
.
- Returns:
- a new
JRootPane
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 the defaultCloseOperation
property.
- Overrides:
-
processWindowEvent
in classWindow
- Parameters:
-
e
- the window event - See Also:
-
setDefaultCloseOperation(int)
,Window.processWindowEvent(java.awt.event.WindowEvent)
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 thewindowClosing
method of a registeredWindowListener
object. -
HIDE_ON_CLOSE
(defined inWindowConstants
): Automatically hide the frame after invoking any registeredWindowListener
objects. -
DISPOSE_ON_CLOSE
(defined inWindowConstants
): Automatically hide and dispose the frame after invoking any registeredWindowListener
objects. -
EXIT_ON_CLOSE
(defined inWindowConstants
): Exit the application using theSystem
exit
method. Use this only in applications.
The value is set to HIDE_ON_CLOSE
by 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 values -
SecurityException
- ifEXIT_ON_CLOSE
has been specified and theSecurityManager
will not allow the caller to invokeSystem.exit
- See Also:
-
Window.addWindowListener(java.awt.event.WindowListener)
,getDefaultCloseOperation()
,WindowConstants
,Runtime.exit(int)
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)
setTransferHandler
@BeanProperty(hidden=true, description="Mechanism for transfer of data into the component") public void setTransferHandler(TransferHandler newHandler)
Sets the transferHandler
property, which is a mechanism to support transfer of data into this component. Use null
if the component does not support data transfer operations.
If the system property suppressSwingDropSupport
is false
(the default) and the current drop target on this component is either null
or not a user-set drop target, this method will change the drop target as follows: If newHandler
is null
it will clear the drop target. If not null
it will install a new DropTarget
.
Note: When used with JFrame
, TransferHandler
only provides data import capability, as the data export related methods are currently typed to JComponent
.
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)
getTransferHandler
public TransferHandler getTransferHandler()
Gets the transferHandler
property.
- Returns:
- the value of the
transferHandler
property - Since:
- 1.6
- See Also:
-
TransferHandler
,setTransferHandler(javax.swing.TransferHandler)
update
public void update(Graphics g)
Just calls paint(g)
. This method was overridden to prevent an unnecessary call to clear the background.
- Overrides:
-
update
in classContainer
- Parameters:
-
g
- the Graphics context in which to paint - See Also:
Component.update(Graphics)
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()
getJMenuBar
public JMenuBar getJMenuBar()
Returns the menubar set on this frame.
- Returns:
- the menubar for this frame
- See Also:
setJMenuBar(javax.swing.JMenuBar)
isRootPaneCheckingEnabled
protected boolean isRootPaneCheckingEnabled()
Returns whether calls to add
and setLayout
are forwarded to the contentPane
.
- Returns:
- true if
add
andsetLayout
are forwarded; false otherwise - See Also:
-
addImpl(java.awt.Component, java.lang.Object, int)
,setLayout(java.awt.LayoutManager)
,setRootPaneCheckingEnabled(boolean)
,RootPaneContainer
setRootPaneCheckingEnabled
@BeanProperty(hidden=true, description="Whether the add and setLayout methods are forwarded") protected void setRootPaneCheckingEnabled(boolean enabled)
Sets whether calls to add
and setLayout
are forwarded to the contentPane
.
- Parameters:
-
enabled
- true ifadd
andsetLayout
are 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
addImpl
protected void addImpl(Component comp, Object constraints, int index)
Adds the specified child Component
. This method is overridden to conditionally forward calls to the contentPane
. By default, children are added to the contentPane
instead of the frame, refer to RootPaneContainer
for details.
- Overrides:
-
addImpl
in classContainer
- Parameters:
-
comp
- the component to be enhanced -
constraints
- the constraints to be respected -
index
- the index - Throws:
-
IllegalArgumentException
- ifindex
is invalid -
IllegalArgumentException
- if adding the container's parent to itself -
IllegalArgumentException
- if adding a window to a container - See Also:
-
setRootPaneCheckingEnabled(boolean)
,RootPaneContainer
remove
public void remove(Component comp)
Removes the specified component from the container. If comp
is not the rootPane
, this will forward the call to the contentPane
. This will do nothing if comp
is not a child of the JFrame
or contentPane
.
- Overrides:
-
remove
in classContainer
- Parameters:
-
comp
- the component to be removed - Throws:
-
NullPointerException
- ifcomp
is null - See Also:
-
Container.add(java.awt.Component)
,RootPaneContainer
setLayout
public void setLayout(LayoutManager manager)
Sets the LayoutManager
. Overridden to conditionally forward the call to the contentPane
. Refer to RootPaneContainer
for more information.
- Overrides:
-
setLayout
in classContainer
- Parameters:
-
manager
- theLayoutManager
- See Also:
-
setRootPaneCheckingEnabled(boolean)
,RootPaneContainer
getRootPane
@BeanProperty(bound=false, hidden=true, description="the RootPane object for this frame.") public JRootPane getRootPane()
Returns the rootPane
object for this frame.
- Specified by:
-
getRootPane
in interfaceRootPaneContainer
- Returns:
- the
rootPane
property - See Also:
-
setRootPane(javax.swing.JRootPane)
,RootPaneContainer.getRootPane()
setRootPane
protected void setRootPane(JRootPane root)
Sets the rootPane
property. This method is called by the constructor.
- Parameters:
-
root
- therootPane
object for this frame - See Also:
getRootPane()
getContentPane
public Container getContentPane()
Returns the contentPane
object for this frame.
- Specified by:
-
getContentPane
in interfaceRootPaneContainer
- Returns:
- the
contentPane
property - See Also:
-
setContentPane(java.awt.Container)
,RootPaneContainer.getContentPane()
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 the contentPane
property. This method is called by the constructor.
Swing's painting architecture requires an opaque JComponent
in 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 opaque JComponent
.
- Specified by:
-
setContentPane
in interfaceRootPaneContainer
- Parameters:
-
contentPane
- thecontentPane
object for this frame - Throws:
-
IllegalComponentStateException
- (a runtime exception) if the content pane parameter isnull
- See Also:
-
getContentPane()
,RootPaneContainer.setContentPane(java.awt.Container)
,JRootPane
getLayeredPane
public JLayeredPane getLayeredPane()
Returns the layeredPane
object for this frame.
- Specified by:
-
getLayeredPane
in interfaceRootPaneContainer
- Returns:
- the
layeredPane
property - See Also:
-
setLayeredPane(javax.swing.JLayeredPane)
,RootPaneContainer.getLayeredPane()
setLayeredPane
@BeanProperty(bound=false, hidden=true, description="The pane that holds the various frame layers.") public void setLayeredPane(JLayeredPane layeredPane)
Sets the layeredPane
property. This method is called by the constructor.
- Specified by:
-
setLayeredPane
in interfaceRootPaneContainer
- Parameters:
-
layeredPane
- thelayeredPane
object for this frame - Throws:
-
IllegalComponentStateException
- (a runtime exception) if the layered pane parameter isnull
- See Also:
-
getLayeredPane()
,RootPaneContainer.setLayeredPane(javax.swing.JLayeredPane)
getGlassPane
public Component getGlassPane()
Returns the glassPane
object for this frame.
- Specified by:
-
getGlassPane
in interfaceRootPaneContainer
- Returns:
- the
glassPane
property - See Also:
-
setGlassPane(java.awt.Component)
,RootPaneContainer.getGlassPane()
setGlassPane
@BeanProperty(bound=false, hidden=true, description="A transparent pane used for menu rendering.") public void setGlassPane(Component glassPane)
Sets the glassPane
property. This method is called by the constructor.
- Specified by:
-
setGlassPane
in interfaceRootPaneContainer
- Parameters:
-
glassPane
- theglassPane
object for this frame - See Also:
-
getGlassPane()
,RootPaneContainer.setGlassPane(java.awt.Component)
getGraphics
@BeanProperty(bound=false) public Graphics getGraphics()
Creates a graphics context for this component. This method will return null
if this component is currently not displayable.
- Overrides:
-
getGraphics
in classComponent
- Returns:
- a graphics context for this component, or
null
if it has none - Since:
- 1.6
- See Also:
Component.paint(java.awt.Graphics)
repaint
public void repaint(long time, int x, int y, int width, int height)
Repaints the specified rectangle of this component within time
milliseconds. Refer to RepaintManager
for details on how the repaint is handled.
- Overrides:
-
repaint
in classComponent
- Parameters:
-
time
- maximum time in milliseconds before update -
x
- the x coordinate -
y
- the y coordinate -
width
- the width -
height
- the height - Since:
- 1.6
- See Also:
RepaintManager
setDefaultLookAndFeelDecorated
public static void setDefaultLookAndFeelDecorated(boolean defaultLookAndFeelDecorated)
Provides a hint as to whether or not newly created JFrame
s should have their Window decorations (such as borders, widgets to close the window, title...) provided by the current look and feel. If defaultLookAndFeelDecorated
is true, the current LookAndFeel
supports providing window decorations, and the current window manager supports undecorated windows, then newly created JFrame
s will have their Window decorations provided by the current LookAndFeel
. Otherwise, newly created JFrame
s 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()
isDefaultLookAndFeelDecorated
public static boolean isDefaultLookAndFeelDecorated()
Returns true if newly created JFrame
s 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
paramString
protected String paramString()
Returns a string representation of this JFrame
. 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 be null
.
- Overrides:
-
paramString
in classFrame
- Returns:
- a string representation of this
JFrame
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:
-
getAccessibleContext
in interfaceAccessible
- Overrides:
-
getAccessibleContext
in classFrame
- Returns:
- an AccessibleJFrame that serves as the AccessibleContext of this JFrame