Modifier and Type	Class and Description
private class	BufferStrategyPaintManager.BufferInfo BufferInfo is used to track the BufferStrategy being used for a particular Component.

Modifier and Type	Field and Description
private int	accumulatedMaxX
private int	accumulatedMaxY
private int	accumulatedX
private int	accumulatedY
private Graphics	bsg Graphics from the BufferStrategy.
private BufferStrategyPaintManager.BufferInfo	bufferInfo BufferInfo corresponding to root.
private ArrayList<BufferStrategyPaintManager.BufferInfo>	bufferInfos List of BufferInfos.
private BufferStrategy	bufferStrategy BufferStrategy currently being used.
private boolean	disposeBufferOnEnd Set to true if the bufferInfo needs to be disposed when current paint loop is done.
private static final PlatformLogger	LOGGER
private boolean	painting Indicates `beginPaint` has been invoked.
private JComponent	rootJ Farthest JComponent ancestor for the current paint/copyArea.
private boolean	showing Indicates we're in the process of showing.
private int	xOffset Location of component being painted relative to root.
private int	yOffset Location of component being painted relative to root.

Access	Constructor and Description
pack-priv	BufferStrategyPaintManager()

Method Summary

Modifier and Type	Method and Description
private void	accumulate(int x, int y, int w, int h)
public void	beginPaint() Overrides javax.swing.RepaintManager.PaintManager.beginPaint. Invoked prior to any calls to paint or copyArea.
public void	copyArea(JComponent c, Graphics g, int x, int y, int w, int h, int deltaX, int deltaY, boolean clip) Overrides javax.swing.RepaintManager.PaintManager.copyArea. Does a copy area on the specified region.
protected void	dispose() Overrides javax.swing.RepaintManager.PaintManager.dispose. Cleans up any created BufferStrategies.
private void	dispose(List<BufferStrategyPaintManager.BufferInfo> bufferInfos)
public void	doubleBufferingChanged(final JRootPane rootPane) Overrides javax.swing.RepaintManager.PaintManager.doubleBufferingChanged. Invoked when the double buffering or useTrueDoubleBuffering changes for a JRootPane.
private void	doubleBufferingChanged0(JRootPane rootPane) Does the work for doubleBufferingChanged.
public void	endPaint() Overrides javax.swing.RepaintManager.PaintManager.endPaint. Invoked to indicate painting has been completed.
private Container	fetchRoot(JComponent c)
private boolean	Returns: true if successful, false otherwise. flushAccumulatedRegion() Renders the BufferStrategy to the screen.
private BufferStrategyPaintManager.BufferInfo	getBufferInfo(Container root) Returns the BufferInfo for the specified root or null if one hasn't been created yet.
public boolean	paint(JComponent paintingComponent, JComponent bufferComponent, Graphics g, int x, int y, int w, int h) Overrides javax.swing.RepaintManager.PaintManager.paint. Paints a region of a component
private boolean	Returns: true if should use buffering per window in painting. prepare(JComponent c, Container root, boolean isPaint, int x, int y, int w, int h) Calculates information common to paint/copyArea.
private void	resetAccumulated()
private void	resetDoubleBufferPerWindow() Turns off double buffering per window.
public boolean	show(Container c, int x, int y, int w, int h) Overrides javax.swing.RepaintManager.PaintManager.show. Shows the specified region of the back buffer.

Inherited from javax.swing.RepaintManager.PaintManager:: isRepaintingRoot paintDoubleBuffered repaintRoot

Field Detail

accumulatedMaxX	back to summary
private int accumulatedMaxX

accumulatedMaxY	back to summary
private int accumulatedMaxY

accumulatedX	back to summary
private int accumulatedX

accumulatedY	back to summary
private int accumulatedY

bsg	back to summary
private Graphics bsg Graphics from the BufferStrategy.

bufferInfo	back to summary
private BufferStrategyPaintManager.BufferInfo bufferInfo BufferInfo corresponding to root.

bufferInfos	back to summary
private ArrayList<BufferStrategyPaintManager.BufferInfo> bufferInfos List of BufferInfos. We don't use a Map primarily because there are typically only a handful of top level components making a Map overkill.

bufferStrategy	back to summary
private BufferStrategy bufferStrategy BufferStrategy currently being used.

disposeBufferOnEnd	back to summary
private boolean disposeBufferOnEnd Set to true if the bufferInfo needs to be disposed when current paint loop is done.

LOGGER	back to summary
private static final PlatformLogger LOGGER

painting	back to summary
private boolean painting Indicates `beginPaint` has been invoked. This is set to true for the life of beginPaint/endPaint pair.

rootJ	back to summary
private JComponent rootJ Farthest JComponent ancestor for the current paint/copyArea.

showing	back to summary
private boolean showing Indicates we're in the process of showing. All painting, on the EDT, is blocked while this is true.

xOffset	back to summary
private int xOffset Location of component being painted relative to root.

yOffset	back to summary
private int yOffset Location of component being painted relative to root.

BufferStrategyPaintManager	back to summary
pack-priv BufferStrategyPaintManager()

Method Detail

accumulate	back to summary
private void accumulate(int x, int y, int w, int h)

beginPaint	back to summary
public void beginPaint() Overrides javax.swing.RepaintManager.PaintManager.beginPaint. Doc from javax.swing.RepaintManager.PaintManager.beginPaint. Invoked prior to any calls to paint or copyArea.

beginPaint

back to summary

public void beginPaint()

Overrides javax.swing.RepaintManager.PaintManager.beginPaint.

Doc from javax.swing.RepaintManager.PaintManager.beginPaint.

Invoked prior to any calls to paint or copyArea.

copyArea	back to summary
public void copyArea(JComponent c, Graphics g, int x, int y, int w, int h, int deltaX, int deltaY, boolean clip) Overrides javax.swing.RepaintManager.PaintManager.copyArea. Doc from javax.swing.RepaintManager.PaintManager.copyArea. Does a copy area on the specified region.

copyArea

back to summary

public void copyArea(JComponent c, Graphics g, int x, int y, int w, int h, int deltaX, int deltaY, boolean clip)

Overrides javax.swing.RepaintManager.PaintManager.copyArea.

Doc from javax.swing.RepaintManager.PaintManager.copyArea.

Does a copy area on the specified region.

dispose	back to summary
protected void dispose() Overrides javax.swing.RepaintManager.PaintManager.dispose. Cleans up any created BufferStrategies.

dispose

back to summary

protected void dispose()

Overrides javax.swing.RepaintManager.PaintManager.dispose.

Cleans up any created BufferStrategies.

dispose	back to summary
private void dispose(List<BufferStrategyPaintManager.BufferInfo> bufferInfos)

doubleBufferingChanged	back to summary
public void doubleBufferingChanged(final JRootPane rootPane) Overrides javax.swing.RepaintManager.PaintManager.doubleBufferingChanged. Invoked when the double buffering or useTrueDoubleBuffering changes for a JRootPane. If the rootpane is not double buffered, or true double buffering changes we throw out any cache we may have.

doubleBufferingChanged

back to summary

public void doubleBufferingChanged(final JRootPane rootPane)

Overrides javax.swing.RepaintManager.PaintManager.doubleBufferingChanged.

Invoked when the double buffering or useTrueDoubleBuffering changes for a JRootPane. If the rootpane is not double buffered, or true double buffering changes we throw out any cache we may have.

doubleBufferingChanged0	back to summary
private void doubleBufferingChanged0(JRootPane rootPane) Does the work for doubleBufferingChanged.

endPaint	back to summary
public void endPaint() Overrides javax.swing.RepaintManager.PaintManager.endPaint. Doc from javax.swing.RepaintManager.PaintManager.endPaint. Invoked to indicate painting has been completed.

endPaint

back to summary

public void endPaint()

Overrides javax.swing.RepaintManager.PaintManager.endPaint.

Doc from javax.swing.RepaintManager.PaintManager.endPaint.

Invoked to indicate painting has been completed.

fetchRoot	back to summary
private Container fetchRoot(JComponent c)

flushAccumulatedRegion	back to summary
private boolean flushAccumulatedRegion() Renders the BufferStrategy to the screen. Returns:boolean true if successful, false otherwise.

flushAccumulatedRegion

back to summary

private boolean flushAccumulatedRegion()

Renders the BufferStrategy to the screen.

Returns:boolean: true if successful, false otherwise.

getBufferInfo	back to summary
private BufferStrategyPaintManager.BufferInfo getBufferInfo(Container root) Returns the BufferInfo for the specified root or null if one hasn't been created yet.

paint	back to summary
public boolean paint(JComponent paintingComponent, JComponent bufferComponent, Graphics g, int x, int y, int w, int h) Overrides javax.swing.RepaintManager.PaintManager.paint. Doc from javax.swing.RepaintManager.PaintManager.paint. Paints a region of a component

paint

back to summary

public boolean paint(JComponent paintingComponent, JComponent bufferComponent, Graphics g, int x, int y, int w, int h)

Overrides javax.swing.RepaintManager.PaintManager.paint.

Doc from javax.swing.RepaintManager.PaintManager.paint.

Paints a region of a component

prepare	back to summary
private boolean prepare(JComponent c, Container root, boolean isPaint, int x, int y, int w, int h) Calculates information common to paint/copyArea. Returns:boolean true if should use buffering per window in painting.

prepare

back to summary

private boolean prepare(JComponent c, Container root, boolean isPaint, int x, int y, int w, int h)

Calculates information common to paint/copyArea.

Returns:boolean: true if should use buffering per window in painting.

resetAccumulated	back to summary
private void resetAccumulated()

resetDoubleBufferPerWindow	back to summary
private void resetDoubleBufferPerWindow() Turns off double buffering per window.

show	back to summary
public boolean show(Container c, int x, int y, int w, int h) Overrides javax.swing.RepaintManager.PaintManager.show. Shows the specified region of the back buffer. This will return true if successful, false otherwise. This is invoked on the toolkit thread in response to an expose event.

show

back to summary

public boolean show(Container c, int x, int y, int w, int h)

Overrides javax.swing.RepaintManager.PaintManager.show.

Shows the specified region of the back buffer. This will return true if successful, false otherwise. This is invoked on the toolkit thread in response to an expose event.

javax.swing back to summary

private Class BufferStrategyPaintManager.BufferInfo

Class Inheritance

extends ComponentAdapter
implements WindowListener

java.lang.Object
java.awt.event.ComponentAdapter
javax.swing.BufferStrategyPaintManager.BufferInfo

All Implemented Interfaces

java.awt.event.WindowListener, java.util.EventListener

BufferInfo is used to track the BufferStrategy being used for a particular Component. In addition to tracking the BufferStrategy it will install a WindowListener and ComponentListener. When the component is hidden/iconified the buffer is marked as needing to be completely repainted.

Field Summary

Modifier and Type	Field and Description
private boolean	contentsLostDuringExpose
private boolean	inSync
private boolean	paintAllOnExpose
private WeakReference<Container>	root
private WeakReference<BufferStrategy>	weakBS

Constructor Summary

Access	Constructor and Description
public	BufferInfo(Container root)

Method Summary

Modifier and Type	Method and Description
public void	componentHidden(ComponentEvent e) Overrides java.awt.event.ComponentAdapter.componentHidden. Implements java.awt.event.ComponentListener.componentHidden. Invoked when the component has been made invisible.
private BufferStrategy	createBufferStrategy() Creates the BufferStrategy.
private BufferStrategy	createBufferStrategy(Container root, boolean isVsynced)
public void	dispose() Cleans up and removes any references.
public BufferStrategy	getBufferStrategy(boolean If true and the BufferStrategy is currently null, one will be created. create) Returns the BufferStrategy.
public boolean	getContentsLostDuringExpose()
public boolean	getPaintAllOnExpose()
public Container	getRoot() Returns the Root (Window) that this BufferInfo references.
public boolean	hasBufferStrategyChanged() Returns true if the buffer strategy of the component differs from current buffer strategy.
public boolean	isInSync() Whether or not the contents of the buffer strategy is in sync with the window.
public void	setContentsLostDuringExpose(boolean value)
public void	setInSync(boolean inSync)
public void	setPaintAllOnExpose(boolean paintAllOnExpose)
public void	windowActivated(WindowEvent e) Implements java.awt.event.WindowListener.windowActivated. Invoked when the Window is set to be the active Window.
public void	windowClosed(WindowEvent e) Implements java.awt.event.WindowListener.windowClosed. Invoked when a window has been closed as the result of calling dispose on the window.
public void	windowClosing(WindowEvent e) Implements java.awt.event.WindowListener.windowClosing. Invoked when the user attempts to close the window from the window's system menu.
public void	windowDeactivated(WindowEvent e) Implements java.awt.event.WindowListener.windowDeactivated. Invoked when a Window is no longer the active Window.
public void	windowDeiconified(WindowEvent e) Implements java.awt.event.WindowListener.windowDeiconified. Invoked when a window is changed from a minimized to a normal state.
public void	windowIconified(WindowEvent e) Implements java.awt.event.WindowListener.windowIconified. Invoked when a window is changed from a normal to a minimized state.
public void	windowOpened(WindowEvent e) Implements java.awt.event.WindowListener.windowOpened. Invoked the first time a window is made visible.

Inherited from java.awt.event.ComponentAdapter:: componentMoved componentResized componentShown

Field Detail

contentsLostDuringExpose	back to summary
private boolean contentsLostDuringExpose

inSync	back to summary
private boolean inSync

paintAllOnExpose	back to summary
private boolean paintAllOnExpose

root	back to summary
private WeakReference<Container> root

weakBS	back to summary
private WeakReference<BufferStrategy> weakBS

Constructor Detail

BufferInfo	back to summary
public BufferInfo(Container root)

Method Detail

componentHidden	back to summary
public void componentHidden(ComponentEvent e) Overrides java.awt.event.ComponentAdapter.componentHidden. Implements java.awt.event.ComponentListener.componentHidden. Doc from java.awt.event.ComponentAdapter.componentHidden. Invoked when the component has been made invisible.

componentHidden

back to summary

public void componentHidden(ComponentEvent e)

Overrides java.awt.event.ComponentAdapter.componentHidden.

Implements java.awt.event.ComponentListener.componentHidden.

Doc from java.awt.event.ComponentAdapter.componentHidden.

Invoked when the component has been made invisible.

createBufferStrategy	back to summary
private BufferStrategy createBufferStrategy() Creates the BufferStrategy. If the appropriate system property has been set we'll try for flip first and then we'll try for blit.

createBufferStrategy	back to summary
private BufferStrategy createBufferStrategy(Container root, boolean isVsynced)

dispose	back to summary
public void dispose() Cleans up and removes any references.

getBufferStrategy back to summary

getBufferStrategy	back to summary
public BufferStrategy getBufferStrategy(boolean create) Returns the BufferStrategy. This will return null if the BufferStrategy hasn't been created and `create` is false, or if there is a problem in creating the `BufferStrategy`. Parameters create:boolean If true and the BufferStrategy is currently null, one will be created.

public BufferStrategy getBufferStrategy(boolean create)

Returns the BufferStrategy. This will return null if the BufferStrategy hasn't been created and create is false, or if there is a problem in creating the BufferStrategy.

Parameters

create:boolean: If true and the BufferStrategy is currently null, one will be created.

getContentsLostDuringExpose	back to summary
public boolean getContentsLostDuringExpose()

getPaintAllOnExpose	back to summary
public boolean getPaintAllOnExpose()

getRoot	back to summary
public Container getRoot() Returns the Root (Window) that this BufferInfo references.

hasBufferStrategyChanged	back to summary
public boolean hasBufferStrategyChanged() Returns true if the buffer strategy of the component differs from current buffer strategy.

isInSync	back to summary
public boolean isInSync() Whether or not the contents of the buffer strategy is in sync with the window. This is set to true when the root pane paints all, and false when contents are lost/restored.

setContentsLostDuringExpose	back to summary
public void setContentsLostDuringExpose(boolean value)

setInSync	back to summary
public void setInSync(boolean inSync)

setPaintAllOnExpose	back to summary
public void setPaintAllOnExpose(boolean paintAllOnExpose)

windowActivated

back to summary

public void windowActivated(WindowEvent e)

Implements java.awt.event.WindowListener.windowActivated.

Doc from java.awt.event.WindowListener.windowActivated.

Invoked when the Window is set to be the active Window. Only a Frame or a Dialog can be the active Window. The native windowing system may denote the active Window or its children with special decorations, such as a highlighted title bar. The active Window is always either the focused Window, or the first Frame or Dialog that is an owner of the focused Window.

windowClosed

back to summary

public void windowClosed(WindowEvent e)

Implements java.awt.event.WindowListener.windowClosed.

Doc from java.awt.event.WindowListener.windowClosed.

Invoked when a window has been closed as the result of calling dispose on the window.

windowClosing

back to summary

public void windowClosing(WindowEvent e)

Implements java.awt.event.WindowListener.windowClosing.

Doc from java.awt.event.WindowListener.windowClosing.

Invoked when the user attempts to close the window from the window's system menu.

windowDeactivated

back to summary

public void windowDeactivated(WindowEvent e)

Implements java.awt.event.WindowListener.windowDeactivated.

Doc from java.awt.event.WindowListener.windowDeactivated.

Invoked when a Window is no longer the active Window. Only a Frame or a Dialog can be the active Window. The native windowing system may denote the active Window or its children with special decorations, such as a highlighted title bar. The active Window is always either the focused Window, or the first Frame or Dialog that is an owner of the focused Window.

windowDeiconified

back to summary

public void windowDeiconified(WindowEvent e)

Implements java.awt.event.WindowListener.windowDeiconified.

Doc from java.awt.event.WindowListener.windowDeiconified.

Invoked when a window is changed from a minimized to a normal state.

windowIconified

back to summary

public void windowIconified(WindowEvent e)

Implements java.awt.event.WindowListener.windowIconified.

Doc from java.awt.event.WindowListener.windowIconified.

Invoked when a window is changed from a normal to a minimized state. For many platforms, a minimized window is displayed as the icon specified in the window's iconImage property.

windowOpened

back to summary

public void windowOpened(WindowEvent e)

Implements java.awt.event.WindowListener.windowOpened.

Doc from java.awt.event.WindowListener.windowOpened.

Invoked the first time a window is made visible.

pack-priv Class BufferStrategyPaintManager

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private Class BufferStrategyPaintManager.BufferInfo

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail