gnu.awt.virtual
Class VirtualComponentPeer

java.lang.Object
  |
  +--gnu.awt.virtual.VirtualComponentPeer

All Implemented Interfaces:

java.awt.peer.ComponentPeer

Direct Known Subclasses:

VirtualFramePeer, VirtualLightweightPeer

public abstract class VirtualComponentPeer

extends Object

implements java.awt.peer.ComponentPeer

Base class for virtual component peers. Satisfies the requirements for AWT peers without actually displaying anything (hence, they are virtual) or by delegating to the parent component, under the assumption is that somewhere up in the hierarchy there is a parent who can produce a display.

Field Summary

protected Component	component
protected Point	location
protected Dimension	size
protected Toolkit	toolkit

Constructor Summary

VirtualComponentPeer(Toolkit toolkit, Component component)

Method Summary

boolean	canDetermineObscurity()
int	checkImage(Image img, int w, int h, ImageObserver o)
void	coalescePaintEvent(PaintEvent e)
void	createBuffers(int x, BufferCapabilities bufferCapabilities)
Image	createImage(ImageProducer producer)
Image	createImage(int width, int height)
VolatileImage	createVolatileImage(int width, int height)
void	destroyBuffers()
void	disable()
void	dispose()
void	enable()
void	flip(BufferCapabilities.FlipContents flipContents)
Image	getBackBuffer()
ColorModel	getColorModel()
FontMetrics	getFontMetrics(Font font)
Graphics	getGraphics()
GraphicsConfiguration	getGraphicsConfiguration()
Point	getLocationOnScreen()
Dimension	getMinimumSize()
Dimension	getPreferredSize()
Toolkit	getToolkit()
void	handleEvent(AWTEvent e)
boolean	handlesWheelScrolling()
void	hide()
boolean	isFocusable()
boolean	isObscured()
Dimension	minimumSize()
void	paint(Graphics g)
Dimension	preferredSize()
boolean	prepareImage(Image img, int w, int h, ImageObserver o)
void	print(Graphics g)
void	repaint(long tm, int x, int y, int width, int height)
boolean	requestFocus(Component lightweightChild, boolean temporary, boolean focusedWindowChangeAllowed, long time)
void	reshape(int x, int y, int width, int height)
void	setBackground(Color c)
void	setBounds(int x, int y, int width, int height)
void	setEnabled(boolean b)
void	setFont(Font f)
void	setForeground(Color c)
void	setVisible(boolean b)
void	show()
void	updateCursorImmediately()

Methods inherited from class java.lang.Object

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

Field Detail

component

protected Component component

toolkit

protected Toolkit toolkit

location

protected Point location

size

protected Dimension size

Constructor Detail

VirtualComponentPeer

public VirtualComponentPeer(Toolkit toolkit,
                            Component component)

Method Detail

paint

public void paint(Graphics g)

Specified by:

paint in interface java.awt.peer.ComponentPeer

repaint

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

Specified by:

repaint in interface java.awt.peer.ComponentPeer

print

public void print(Graphics g)

Specified by:

print in interface java.awt.peer.ComponentPeer

getGraphics

public Graphics getGraphics()

Specified by:

getGraphics in interface java.awt.peer.ComponentPeer

getGraphicsConfiguration

public GraphicsConfiguration getGraphicsConfiguration()

Specified by:

getGraphicsConfiguration in interface java.awt.peer.ComponentPeer

setBounds

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

Specified by:

setBounds in interface java.awt.peer.ComponentPeer

getLocationOnScreen

public Point getLocationOnScreen()

Specified by:

getLocationOnScreen in interface java.awt.peer.ComponentPeer

getPreferredSize

public Dimension getPreferredSize()

Specified by:

getPreferredSize in interface java.awt.peer.ComponentPeer

getMinimumSize

public Dimension getMinimumSize()

Specified by:

getMinimumSize in interface java.awt.peer.ComponentPeer

setVisible

public void setVisible(boolean b)

Specified by:

setVisible in interface java.awt.peer.ComponentPeer

setEnabled

public void setEnabled(boolean b)

Specified by:

setEnabled in interface java.awt.peer.ComponentPeer

isObscured

public boolean isObscured()

Specified by:

isObscured in interface java.awt.peer.ComponentPeer

canDetermineObscurity

public boolean canDetermineObscurity()

Specified by:

canDetermineObscurity in interface java.awt.peer.ComponentPeer

isFocusable

public boolean isFocusable()

Specified by:

isFocusable in interface java.awt.peer.ComponentPeer

requestFocus

public boolean requestFocus(Component lightweightChild,
                            boolean temporary,
                            boolean focusedWindowChangeAllowed,
                            long time)

Specified by:

requestFocus in interface java.awt.peer.ComponentPeer

handleEvent

public void handleEvent(AWTEvent e)

Specified by:

handleEvent in interface java.awt.peer.ComponentPeer

coalescePaintEvent

public void coalescePaintEvent(PaintEvent e)

Specified by:

coalescePaintEvent in interface java.awt.peer.ComponentPeer

handlesWheelScrolling

public boolean handlesWheelScrolling()

Specified by:

handlesWheelScrolling in interface java.awt.peer.ComponentPeer

getColorModel

public ColorModel getColorModel()

Specified by:

getColorModel in interface java.awt.peer.ComponentPeer

setForeground

public void setForeground(Color c)

Specified by:

setForeground in interface java.awt.peer.ComponentPeer

setBackground

public void setBackground(Color c)

Specified by:

setBackground in interface java.awt.peer.ComponentPeer

getFontMetrics

public FontMetrics getFontMetrics(Font font)

Specified by:

getFontMetrics in interface java.awt.peer.ComponentPeer

setFont

public void setFont(Font f)

Specified by:

setFont in interface java.awt.peer.ComponentPeer

updateCursorImmediately

public void updateCursorImmediately()

Specified by:

updateCursorImmediately in interface java.awt.peer.ComponentPeer

getToolkit

public Toolkit getToolkit()

Specified by:

getToolkit in interface java.awt.peer.ComponentPeer

dispose

public void dispose()

Specified by:

dispose in interface java.awt.peer.ComponentPeer

createBuffers

public void createBuffers(int x,
                          BufferCapabilities bufferCapabilities)

Specified by:

createBuffers in interface java.awt.peer.ComponentPeer

destroyBuffers

public void destroyBuffers()

Specified by:

destroyBuffers in interface java.awt.peer.ComponentPeer

flip

public void flip(BufferCapabilities.FlipContents flipContents)

Specified by:

flip in interface java.awt.peer.ComponentPeer

getBackBuffer

public Image getBackBuffer()

Specified by:

getBackBuffer in interface java.awt.peer.ComponentPeer

createImage

public Image createImage(ImageProducer producer)

Specified by:

createImage in interface java.awt.peer.ComponentPeer

createImage

public Image createImage(int width,
                         int height)

Specified by:

createImage in interface java.awt.peer.ComponentPeer

createVolatileImage

public VolatileImage createVolatileImage(int width,
                                         int height)

Specified by:

createVolatileImage in interface java.awt.peer.ComponentPeer

prepareImage

public boolean prepareImage(Image img,
                            int w,
                            int h,
                            ImageObserver o)

Specified by:

prepareImage in interface java.awt.peer.ComponentPeer

checkImage

public int checkImage(Image img,
                      int w,
                      int h,
                      ImageObserver o)

Specified by:

checkImage in interface java.awt.peer.ComponentPeer

preferredSize

public Dimension preferredSize()

Specified by:

preferredSize in interface java.awt.peer.ComponentPeer

minimumSize

public Dimension minimumSize()

Specified by:

minimumSize in interface java.awt.peer.ComponentPeer

show

public void show()

Specified by:

show in interface java.awt.peer.ComponentPeer

hide

public void hide()

Specified by:

hide in interface java.awt.peer.ComponentPeer

enable

public void enable()

Specified by:

enable in interface java.awt.peer.ComponentPeer

disable

public void disable()

Specified by:

disable in interface java.awt.peer.ComponentPeer

reshape

public void reshape(int x,
                    int y,
                    int width,
                    int height)

Specified by:

reshape in interface java.awt.peer.ComponentPeer