OpenJDK 27 · sun.awt.NullComponentPeer · APIdia, the JavaDoc alternative

Access	Constructor and Description
public	NullComponentPeer()

Method Summary

Modifier and Type	Method and Description
public void	applyShape(Region shape) Implements java.awt.peer.ComponentPeer.applyShape. Applies the shape to the native component window.
public void	beginLayout() Implements java.awt.peer.ContainerPeer.beginLayout. Notifies the peer that layout is about to begin.
public void	beginValidate() Implements java.awt.peer.ContainerPeer.beginValidate. Notifies the peer that validation of the component tree is about to begin.
public boolean	canDetermineObscurity() Implements java.awt.peer.ComponentPeer.canDetermineObscurity. Returns `true` when the peer can determine if a component has been obscured, `false` false otherwise.
public void	coalescePaintEvent(PaintEvent e) Implements java.awt.peer.ComponentPeer.coalescePaintEvent. Called to coalesce paint events.
public void	createBuffers(int numBuffers, BufferCapabilities caps) Implements java.awt.peer.ComponentPeer.createBuffers. Create `numBuffers` flipping buffers with the specified buffer capabilities.
public Image	createImage(int width, int height) Implements java.awt.peer.ComponentPeer.createImage. Creates an empty image with the specified width and height.
public VolatileImage	createVolatileImage(int width, int height) Implements java.awt.peer.ComponentPeer.createVolatileImage. Creates an empty volatile image with the specified width and height.
public void	destroyBuffers() Implements java.awt.peer.ComponentPeer.destroyBuffers. Destroys all created buffers.
public void	disable()
public void	dispose() Implements java.awt.peer.ComponentPeer.dispose. Disposes all resources held by the component peer.
public void	enable()
public void	endLayout() Implements java.awt.peer.ContainerPeer.endLayout. Notifies the peer that layout is finished.
public void	endValidate() Implements java.awt.peer.ContainerPeer.endValidate. Notifies the peer that validation of the component tree is finished.
public void	flip(int x1, int y1, int x2, int y2, BufferCapabilities.FlipContents flipAction) Implements java.awt.peer.ComponentPeer.flip. Move the back buffer to the front buffer.
public GraphicsConfiguration	getAppropriateGraphicsConfiguration(GraphicsConfiguration gc) Implements java.awt.peer.CanvasPeer.getAppropriateGraphicsConfiguration. Requests a GC that best suits this Canvas.
public Image	getBackBuffer() Implements java.awt.peer.ComponentPeer.getBackBuffer. Returns the back buffer as image.
public Rectangle	getBounds()
public ColorModel	getColorModel() Implements java.awt.peer.ComponentPeer.getColorModel. Returns the color model used by the component.
public FontMetrics	getFontMetrics(Font font) Implements java.awt.peer.ComponentPeer.getFontMetrics. Returns a font metrics object to determine the metrics properties of the specified font.
public Graphics	getGraphics() Implements java.awt.peer.ComponentPeer.getGraphics. Returns a graphics object to paint on the component.
public GraphicsConfiguration	getGraphicsConfiguration() Implements java.awt.peer.ComponentPeer.getGraphicsConfiguration. Returns the graphics configuration that corresponds to this component.
public Insets	getInsets() Implements java.awt.peer.ContainerPeer.getInsets. Returns the insets of this container.
public Point	getLocationOnScreen() Implements java.awt.peer.ComponentPeer.getLocationOnScreen. Determines the location of the component on the screen.
public Dimension	getMinimumSize() Implements java.awt.peer.ComponentPeer.getMinimumSize. Determines the minimum size of the component.
public Dimension	getPreferredSize() Implements java.awt.peer.ComponentPeer.getPreferredSize. Determines the preferred size of the component.
public boolean	handleEvent(Event e) References Deprecated `Event` is deprecated or references (maybe indirectly) at least one deprecated element.
public void	handleEvent(AWTEvent arg0) Implements java.awt.peer.ComponentPeer.handleEvent. Called to let the component peer handle events.
public boolean	handlesWheelScrolling() Implements java.awt.peer.ComponentPeer.handlesWheelScrolling. Determines if the component handles wheel scrolling itself.
public void	hide()
public Insets	insets()
public boolean	isFocusable() Implements java.awt.peer.ComponentPeer.isFocusable. Returns `true` when the component takes part in the focus traversal, `false` otherwise.
public boolean	isObscured() Implements java.awt.peer.ComponentPeer.isObscured. Determines if a component has been obscured, i.e. by an overlapping window or similar.
public boolean	isPaintPending()
public boolean	isReparentSupported() Implements java.awt.peer.ComponentPeer.isReparentSupported. Returns whether this peer supports reparenting to another parent without destroying the peer.
public void	layout() Implements java.awt.peer.ComponentPeer.layout. Used by lightweight implementations to tell a ComponentPeer to layout its sub-elements.
public Dimension	minimumSize()
public void	paint(Graphics g) Implements java.awt.peer.ComponentPeer.paint. Paints the component to the specified graphics context.
public Dimension	preferredSize()
public void	print(Graphics g) Implements java.awt.peer.ComponentPeer.print. Prints the component to the specified graphics context.
public void	repaint(long tm, int x, int y, int width, int height)
public void	reparent(ContainerPeer newNativeParent) Implements java.awt.peer.ComponentPeer.reparent. Reparents this peer to the new parent referenced by `newContainer` peer.
public boolean	requestFocus(Component lightweightChild, boolean temporary, boolean focusedWindowChangeAllowed, long time, FocusEvent.Cause cause) Implements java.awt.peer.ComponentPeer.requestFocus. Requests focus on this component.
public void	reshape(int x, int y, int width, int height)
public void	setBackground(Color c) Implements java.awt.peer.ComponentPeer.setBackground. Sets the background color of this component.
public void	setBounds(int x, int y, int width, int height, int op) Implements java.awt.peer.ComponentPeer.setBounds. Sets the location or size or both of the component.
public void	setCursor(Cursor cursor)
public void	setEnabled(boolean b) Implements java.awt.peer.ComponentPeer.setEnabled. Enables or disables a component.
public void	setFont(Font f) Implements java.awt.peer.ComponentPeer.setFont. Sets the font of this component.
public void	setForeground(Color c) Implements java.awt.peer.ComponentPeer.setForeground. Sets the foreground color of this component.
public void	setVisible(boolean b) Implements java.awt.peer.ComponentPeer.setVisible. Makes a component visible or invisible.
public void	setZOrder(ComponentPeer above) Implements java.awt.peer.ComponentPeer.setZOrder. Lowers this component at the bottom of the above HW peer.
public void	show()
public void	updateCursorImmediately() Implements java.awt.peer.ComponentPeer.updateCursorImmediately. Updates the cursor of the component.
public boolean	updateGraphicsData(GraphicsConfiguration gc) Implements java.awt.peer.ComponentPeer.updateGraphicsData. Updates internal data structures related to the component's GC.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

NullComponentPeer	back to summary
public NullComponentPeer()

Method Detail

applyShape	back to summary
public void applyShape(Region shape) Implements java.awt.peer.ComponentPeer.applyShape. Applies the shape to the native component window. Since 1.7

applyShape

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public void applyShape(Region shape)

Implements java.awt.peer.ComponentPeer.applyShape.

Applies the shape to the native component window.

Since: 1.7

beginLayout	back to summary
public void beginLayout() Implements java.awt.peer.ContainerPeer.beginLayout. Doc from java.awt.peer.ContainerPeer.beginLayout. Notifies the peer that layout is about to begin. This is called before the container itself and its children are laid out.

beginLayout

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public void beginLayout()

Implements java.awt.peer.ContainerPeer.beginLayout.

Doc from java.awt.peer.ContainerPeer.beginLayout.

Notifies the peer that layout is about to begin. This is called before the container itself and its children are laid out.

beginValidate	back to summary
public void beginValidate() Implements java.awt.peer.ContainerPeer.beginValidate. Doc from java.awt.peer.ContainerPeer.beginValidate. Notifies the peer that validation of the component tree is about to begin.

beginValidate

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public void beginValidate()

Implements java.awt.peer.ContainerPeer.beginValidate.

Doc from java.awt.peer.ContainerPeer.beginValidate.

Notifies the peer that validation of the component tree is about to begin.

canDetermineObscurity back to summary

canDetermineObscurity	back to summary
public boolean canDetermineObscurity() Implements java.awt.peer.ComponentPeer.canDetermineObscurity. Doc from java.awt.peer.ComponentPeer.canDetermineObscurity. Returns `true` when the peer can determine if a component has been obscured, `false` false otherwise.

public boolean canDetermineObscurity()

Implements java.awt.peer.ComponentPeer.canDetermineObscurity.

Doc from java.awt.peer.ComponentPeer.canDetermineObscurity.

Returns true when the peer can determine if a component has been obscured, false false otherwise.

coalescePaintEvent	back to summary
public void coalescePaintEvent(PaintEvent e) Implements java.awt.peer.ComponentPeer.coalescePaintEvent. Doc from java.awt.peer.ComponentPeer.coalescePaintEvent. Called to coalesce paint events.

coalescePaintEvent

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public void coalescePaintEvent(PaintEvent e)

Implements java.awt.peer.ComponentPeer.coalescePaintEvent.

Doc from java.awt.peer.ComponentPeer.coalescePaintEvent.

Called to coalesce paint events.

createBuffers back to summary

createBuffers	back to summary
public void createBuffers(int numBuffers, BufferCapabilities caps) throws AWTException Implements java.awt.peer.ComponentPeer.createBuffers. Doc from java.awt.peer.ComponentPeer.createBuffers. Create `numBuffers` flipping buffers with the specified buffer capabilities. Exceptions AWTException: if flip buffering is not supported

public void createBuffers(int numBuffers, BufferCapabilities caps) throws AWTException

Implements java.awt.peer.ComponentPeer.createBuffers.

Doc from java.awt.peer.ComponentPeer.createBuffers.

Create numBuffers flipping buffers with the specified buffer capabilities.

Exceptions

AWTException:: if flip buffering is not supported

createImage	back to summary
public Image createImage(int width, int height) Implements java.awt.peer.ComponentPeer.createImage. Doc from java.awt.peer.ComponentPeer.createImage. Creates an empty image with the specified width and height. This is generally used as a non-accelerated backbuffer for drawing onto the component (e.g. by Swing).

createImage

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public Image createImage(int width, int height)

Implements java.awt.peer.ComponentPeer.createImage.

Doc from java.awt.peer.ComponentPeer.createImage.

Creates an empty image with the specified width and height. This is generally used as a non-accelerated backbuffer for drawing onto the component (e.g. by Swing).

createVolatileImage	back to summary
public VolatileImage createVolatileImage(int width, int height) Implements java.awt.peer.ComponentPeer.createVolatileImage. Doc from java.awt.peer.ComponentPeer.createVolatileImage. Creates an empty volatile image with the specified width and height. This is generally used as an accelerated backbuffer for drawing onto the component (e.g. by Swing).

createVolatileImage

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public VolatileImage createVolatileImage(int width, int height)

Implements java.awt.peer.ComponentPeer.createVolatileImage.

Doc from java.awt.peer.ComponentPeer.createVolatileImage.

Creates an empty volatile image with the specified width and height. This is generally used as an accelerated backbuffer for drawing onto the component (e.g. by Swing).

destroyBuffers	back to summary
public void destroyBuffers() Implements java.awt.peer.ComponentPeer.destroyBuffers. Doc from java.awt.peer.ComponentPeer.destroyBuffers. Destroys all created buffers.

destroyBuffers

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public void destroyBuffers()

Implements java.awt.peer.ComponentPeer.destroyBuffers.

Doc from java.awt.peer.ComponentPeer.destroyBuffers.

Destroys all created buffers.

disable	back to summary
public void disable()

dispose	back to summary
public void dispose() Implements java.awt.peer.ComponentPeer.dispose. Doc from java.awt.peer.ComponentPeer.dispose. Disposes all resources held by the component peer. This is called when the component has been disconnected from the component hierarchy and is about to be garbage collected.

dispose

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public void dispose()

Implements java.awt.peer.ComponentPeer.dispose.

Doc from java.awt.peer.ComponentPeer.dispose.

Disposes all resources held by the component peer. This is called when the component has been disconnected from the component hierarchy and is about to be garbage collected.

enable	back to summary
public void enable()

endLayout	back to summary
public void endLayout() Implements java.awt.peer.ContainerPeer.endLayout. Doc from java.awt.peer.ContainerPeer.endLayout. Notifies the peer that layout is finished. This is called after the container and its children have been laid out.

endLayout

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public void endLayout()

Implements java.awt.peer.ContainerPeer.endLayout.

Doc from java.awt.peer.ContainerPeer.endLayout.

Notifies the peer that layout is finished. This is called after the container and its children have been laid out.

endValidate	back to summary
public void endValidate() Implements java.awt.peer.ContainerPeer.endValidate. Doc from java.awt.peer.ContainerPeer.endValidate. Notifies the peer that validation of the component tree is finished.

endValidate

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public void endValidate()

Implements java.awt.peer.ContainerPeer.endValidate.

Doc from java.awt.peer.ContainerPeer.endValidate.

Notifies the peer that validation of the component tree is finished.

flip	back to summary
public void flip(int x1, int y1, int x2, int y2, BufferCapabilities.FlipContents flipAction) Implements java.awt.peer.ComponentPeer.flip. Doc from java.awt.peer.ComponentPeer.flip. Move the back buffer to the front buffer.

flip

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public void flip(int x1, int y1, int x2, int y2, BufferCapabilities.FlipContents flipAction)

Implements java.awt.peer.ComponentPeer.flip.

Doc from java.awt.peer.ComponentPeer.flip.

Move the back buffer to the front buffer.

getAppropriateGraphicsConfiguration	back to summary
public GraphicsConfiguration getAppropriateGraphicsConfiguration(GraphicsConfiguration gc) Implements java.awt.peer.CanvasPeer.getAppropriateGraphicsConfiguration. Doc from java.awt.peer.CanvasPeer.getAppropriateGraphicsConfiguration. Requests a GC that best suits this Canvas. The returned GC may differ from the requested GC passed as the argument to this method. This method must return a non-null value (given the argument is non-null as well).

getAppropriateGraphicsConfiguration

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public GraphicsConfiguration getAppropriateGraphicsConfiguration(GraphicsConfiguration gc)

Implements java.awt.peer.CanvasPeer.getAppropriateGraphicsConfiguration.

Doc from java.awt.peer.CanvasPeer.getAppropriateGraphicsConfiguration.

Requests a GC that best suits this Canvas. The returned GC may differ from the requested GC passed as the argument to this method. This method must return a non-null value (given the argument is non-null as well).

getBackBuffer	back to summary
public Image getBackBuffer() Implements java.awt.peer.ComponentPeer.getBackBuffer. Doc from java.awt.peer.ComponentPeer.getBackBuffer. Returns the back buffer as image.

getBackBuffer

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public Image getBackBuffer()

Implements java.awt.peer.ComponentPeer.getBackBuffer.

Doc from java.awt.peer.ComponentPeer.getBackBuffer.

Returns the back buffer as image.

getBounds	back to summary
public Rectangle getBounds()

getColorModel	back to summary
public ColorModel getColorModel() Implements java.awt.peer.ComponentPeer.getColorModel. Doc from java.awt.peer.ComponentPeer.getColorModel. Returns the color model used by the component.

getColorModel

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public ColorModel getColorModel()

Implements java.awt.peer.ComponentPeer.getColorModel.

Doc from java.awt.peer.ComponentPeer.getColorModel.

Returns the color model used by the component.

getFontMetrics	back to summary
public FontMetrics getFontMetrics(Font font) Implements java.awt.peer.ComponentPeer.getFontMetrics. Doc from java.awt.peer.ComponentPeer.getFontMetrics. Returns a font metrics object to determine the metrics properties of the specified font.

getFontMetrics

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public FontMetrics getFontMetrics(Font font)

Implements java.awt.peer.ComponentPeer.getFontMetrics.

Doc from java.awt.peer.ComponentPeer.getFontMetrics.

Returns a font metrics object to determine the metrics properties of the specified font.

getGraphics	back to summary
public Graphics getGraphics() Implements java.awt.peer.ComponentPeer.getGraphics. Doc from java.awt.peer.ComponentPeer.getGraphics. Returns a graphics object to paint on the component.

getGraphics

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public Graphics getGraphics()

Implements java.awt.peer.ComponentPeer.getGraphics.

Doc from java.awt.peer.ComponentPeer.getGraphics.

Returns a graphics object to paint on the component.

getGraphicsConfiguration	back to summary
public GraphicsConfiguration getGraphicsConfiguration() Implements java.awt.peer.ComponentPeer.getGraphicsConfiguration. Doc from java.awt.peer.ComponentPeer.getGraphicsConfiguration. Returns the graphics configuration that corresponds to this component.

getGraphicsConfiguration

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public GraphicsConfiguration getGraphicsConfiguration()

Implements java.awt.peer.ComponentPeer.getGraphicsConfiguration.

Doc from java.awt.peer.ComponentPeer.getGraphicsConfiguration.

Returns the graphics configuration that corresponds to this component.

getInsets	back to summary
public Insets getInsets() Implements java.awt.peer.ContainerPeer.getInsets. Doc from java.awt.peer.ContainerPeer.getInsets. Returns the insets of this container. Insets usually is the space that is occupied by things like borders.

getInsets

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public Insets getInsets()

Implements java.awt.peer.ContainerPeer.getInsets.

Doc from java.awt.peer.ContainerPeer.getInsets.

Returns the insets of this container. Insets usually is the space that is occupied by things like borders.

getLocationOnScreen	back to summary
public Point getLocationOnScreen() Implements java.awt.peer.ComponentPeer.getLocationOnScreen. Doc from java.awt.peer.ComponentPeer.getLocationOnScreen. Determines the location of the component on the screen.

getLocationOnScreen

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public Point getLocationOnScreen()

Implements java.awt.peer.ComponentPeer.getLocationOnScreen.

Doc from java.awt.peer.ComponentPeer.getLocationOnScreen.

Determines the location of the component on the screen.

getMinimumSize	back to summary
public Dimension getMinimumSize() Implements java.awt.peer.ComponentPeer.getMinimumSize. Doc from java.awt.peer.ComponentPeer.getMinimumSize. Determines the minimum size of the component.

getMinimumSize

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public Dimension getMinimumSize()

Implements java.awt.peer.ComponentPeer.getMinimumSize.

Doc from java.awt.peer.ComponentPeer.getMinimumSize.

Determines the minimum size of the component.

getPreferredSize	back to summary
public Dimension getPreferredSize() Implements java.awt.peer.ComponentPeer.getPreferredSize. Doc from java.awt.peer.ComponentPeer.getPreferredSize. Determines the preferred size of the component.

getPreferredSize

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public Dimension getPreferredSize()

Implements java.awt.peer.ComponentPeer.getPreferredSize.

Doc from java.awt.peer.ComponentPeer.getPreferredSize.

Determines the preferred size of the component.

handleEvent	back to summary
public boolean handleEvent(Event e) References Deprecated `Event` is deprecated or references (maybe indirectly) at least one deprecated element. See corresponding docs for further information. Annotations @SuppressWarnings:deprecation

handleEvent	back to summary
public void handleEvent(AWTEvent arg0) Implements java.awt.peer.ComponentPeer.handleEvent. Doc from java.awt.peer.ComponentPeer.handleEvent. Called to let the component peer handle events.

handleEvent

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public void handleEvent(AWTEvent arg0)

Implements java.awt.peer.ComponentPeer.handleEvent.

Doc from java.awt.peer.ComponentPeer.handleEvent.

Called to let the component peer handle events.

handlesWheelScrolling	back to summary
public boolean handlesWheelScrolling() Implements java.awt.peer.ComponentPeer.handlesWheelScrolling. Doc from java.awt.peer.ComponentPeer.handlesWheelScrolling. Determines if the component handles wheel scrolling itself. Otherwise it is delegated to the component's parent.

handlesWheelScrolling

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public boolean handlesWheelScrolling()

Implements java.awt.peer.ComponentPeer.handlesWheelScrolling.

Doc from java.awt.peer.ComponentPeer.handlesWheelScrolling.

Determines if the component handles wheel scrolling itself. Otherwise it is delegated to the component's parent.

hide	back to summary
public void hide()

insets	back to summary
public Insets insets()

isFocusable back to summary

isFocusable	back to summary
public boolean isFocusable() Implements java.awt.peer.ComponentPeer.isFocusable. Doc from java.awt.peer.ComponentPeer.isFocusable. Returns `true` when the component takes part in the focus traversal, `false` otherwise.

public boolean isFocusable()

Implements java.awt.peer.ComponentPeer.isFocusable.

Doc from java.awt.peer.ComponentPeer.isFocusable.

Returns true when the component takes part in the focus traversal, false otherwise.

isObscured back to summary

isObscured	back to summary
public boolean isObscured() Implements java.awt.peer.ComponentPeer.isObscured. Doc from java.awt.peer.ComponentPeer.isObscured. Determines if a component has been obscured, i.e. by an overlapping window or similar. This is used by JViewport for optimizing performance. This doesn't have to be implemented, when `canDetermineObscurity()` returns `false`.

public boolean isObscured()

Implements java.awt.peer.ComponentPeer.isObscured.

Doc from java.awt.peer.ComponentPeer.isObscured.

Determines if a component has been obscured, i.e. by an overlapping window or similar. This is used by JViewport for optimizing performance. This doesn't have to be implemented, when canDetermineObscurity() returns false.

isPaintPending	back to summary
public boolean isPaintPending()

isReparentSupported back to summary

isReparentSupported	back to summary
public boolean isReparentSupported() Implements java.awt.peer.ComponentPeer.isReparentSupported. Doc from java.awt.peer.ComponentPeer.isReparentSupported. Returns whether this peer supports reparenting to another parent without destroying the peer. See Also `java.awt.peer.ComponentPeer#isReparentSupported`

public boolean isReparentSupported()

Implements java.awt.peer.ComponentPeer.isReparentSupported.

Doc from java.awt.peer.ComponentPeer.isReparentSupported.

Returns whether this peer supports reparenting to another parent without destroying the peer.

See Also: java.awt.peer.ComponentPeer#isReparentSupported

layout	back to summary
public void layout() Implements java.awt.peer.ComponentPeer.layout. Doc from java.awt.peer.ComponentPeer.layout. Used by lightweight implementations to tell a ComponentPeer to layout its sub-elements. For instance, a lightweight Checkbox needs to layout the box, as well as the text label.

layout

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public void layout()

Implements java.awt.peer.ComponentPeer.layout.

Doc from java.awt.peer.ComponentPeer.layout.

Used by lightweight implementations to tell a ComponentPeer to layout its sub-elements. For instance, a lightweight Checkbox needs to layout the box, as well as the text label.

minimumSize	back to summary
public Dimension minimumSize()

paint back to summary

paint	back to summary
public void paint(Graphics g) Implements java.awt.peer.ComponentPeer.paint. Doc from java.awt.peer.ComponentPeer.paint. Paints the component to the specified graphics context. This is called by `Component#paintAll(Graphics)` to paint the component.

public void paint(Graphics g)

Implements java.awt.peer.ComponentPeer.paint.

Doc from java.awt.peer.ComponentPeer.paint.

Paints the component to the specified graphics context. This is called by Component#paintAll(Graphics) to paint the component.

preferredSize	back to summary
public Dimension preferredSize()

print back to summary

print	back to summary
public void print(Graphics g) Implements java.awt.peer.ComponentPeer.print. Doc from java.awt.peer.ComponentPeer.print. Prints the component to the specified graphics context. This is called by `Component#printAll(Graphics)` to print the component.

public void print(Graphics g)

Implements java.awt.peer.ComponentPeer.print.

Doc from java.awt.peer.ComponentPeer.print.

Prints the component to the specified graphics context. This is called by Component#printAll(Graphics) to print the component.

repaint	back to summary
public void repaint(long tm, int x, int y, int width, int height)

reparent back to summary

reparent	back to summary
public void reparent(ContainerPeer newNativeParent) Implements java.awt.peer.ComponentPeer.reparent. Doc from java.awt.peer.ComponentPeer.reparent. Reparents this peer to the new parent referenced by `newContainer` peer. Implementation depends on toolkit and container. See Also `java.awt.peer.ComponentPeer#reparent`

public void reparent(ContainerPeer newNativeParent)

Implements java.awt.peer.ComponentPeer.reparent.

Doc from java.awt.peer.ComponentPeer.reparent.

Reparents this peer to the new parent referenced by newContainer peer. Implementation depends on toolkit and container.

See Also: java.awt.peer.ComponentPeer#reparent

requestFocus	back to summary
public boolean requestFocus(Component lightweightChild, boolean temporary, boolean focusedWindowChangeAllowed, long time, FocusEvent.Cause cause) Implements java.awt.peer.ComponentPeer.requestFocus. Doc from java.awt.peer.ComponentPeer.requestFocus. Requests focus on this component.

requestFocus

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public boolean requestFocus(Component lightweightChild, boolean temporary, boolean focusedWindowChangeAllowed, long time, FocusEvent.Cause cause)

Implements java.awt.peer.ComponentPeer.requestFocus.

Doc from java.awt.peer.ComponentPeer.requestFocus.

Requests focus on this component.

reshape	back to summary
public void reshape(int x, int y, int width, int height)

setBackground	back to summary
public void setBackground(Color c) Implements java.awt.peer.ComponentPeer.setBackground. Doc from java.awt.peer.ComponentPeer.setBackground. Sets the background color of this component.

setBackground

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public void setBackground(Color c)

Implements java.awt.peer.ComponentPeer.setBackground.

Doc from java.awt.peer.ComponentPeer.setBackground.

Sets the background color of this component.

setBounds back to summary

setBounds	back to summary
public void setBounds(int x, int y, int width, int height, int op) Implements java.awt.peer.ComponentPeer.setBounds. Doc from java.awt.peer.ComponentPeer.setBounds. Sets the location or size or both of the component. The location is specified relative to the component's parent. The `op` parameter specifies which properties change. If it is `SET_LOCATION`, then only the location changes (and the size parameters can be ignored). If `op` is `SET_SIZE`, then only the size changes (and the location can be ignored). If `op` is `SET_BOUNDS`, then both change. There is a special value `SET_CLIENT_SIZE`, which is used only for window-like components to set the size of the client (i.e. the 'inner' size, without the insets of the window borders).

public void setBounds(int x, int y, int width, int height, int op)

Implements java.awt.peer.ComponentPeer.setBounds.

Doc from java.awt.peer.ComponentPeer.setBounds.

Sets the location or size or both of the component. The location is specified relative to the component's parent. The op parameter specifies which properties change. If it is SET_LOCATION, then only the location changes (and the size parameters can be ignored). If op is SET_SIZE, then only the size changes (and the location can be ignored). If op is SET_BOUNDS, then both change. There is a special value SET_CLIENT_SIZE, which is used only for window-like components to set the size of the client (i.e. the 'inner' size, without the insets of the window borders).

setCursor	back to summary
public void setCursor(Cursor cursor)

setEnabled

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public void setEnabled(boolean b)

Implements java.awt.peer.ComponentPeer.setEnabled.

Doc from java.awt.peer.ComponentPeer.setEnabled.

Enables or disables a component. Disabled components are usually grayed out and cannot be activated.

setFont

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public void setFont(Font f)

Implements java.awt.peer.ComponentPeer.setFont.

Doc from java.awt.peer.ComponentPeer.setFont.

Sets the font of this component.

setForeground

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public void setForeground(Color c)

Implements java.awt.peer.ComponentPeer.setForeground.

Doc from java.awt.peer.ComponentPeer.setForeground.

Sets the foreground color of this component.

setVisible

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public void setVisible(boolean b)

Implements java.awt.peer.ComponentPeer.setVisible.

Doc from java.awt.peer.ComponentPeer.setVisible.

Makes a component visible or invisible.

setZOrder

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public void setZOrder(ComponentPeer above)

Implements java.awt.peer.ComponentPeer.setZOrder.

Lowers this component at the bottom of the above HW peer. If the above parameter is null then the method places this component at the top of the Z-order.

show	back to summary
public void show()

updateCursorImmediately

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public void updateCursorImmediately()

Implements java.awt.peer.ComponentPeer.updateCursorImmediately.

Doc from java.awt.peer.ComponentPeer.updateCursorImmediately.

Updates the cursor of the component.

updateGraphicsData

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public boolean updateGraphicsData(GraphicsConfiguration gc)

Implements java.awt.peer.ComponentPeer.updateGraphicsData.

Doc from java.awt.peer.ComponentPeer.updateGraphicsData.

Updates internal data structures related to the component's GC.

public Class NullComponentPeer

Constructor Summary

Method Summary

Constructor Detail

Method Detail