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Class com.sun.java.swing.RepaintManager

java.lang.Object
   |
   +----com.sun.java.swing.RepaintManager

public class RepaintManager

extends Object

RepaintManager()

Create a new RepaintManager instance.

addDirtyRegion(JComponent, int, int, int, int)

Add a component in the list of components that should be refreshed.

addInvalidComponent(JComponent)

Mark the component as in need of layout and queue a runnable for the event dispatching thread that will validate the components first isValidateRoot() ancestor.

currentManager(Component)

Return the RepaintManager for the calling thread.

currentManager(JComponent)

getDirtyRegion(JComponent)

Return the current dirty region for a component.

getDoubleBufferMaximumSize()

getOffscreenBuffer(Component, int, int)

Return the offscreen buffer that should be used as a double buffer with the component c By default there is a double buffer per RepaintManager.

isCompletelyDirty(JComponent)

Convenience that returns true if aComponent will be completely painted during the next paintDirtyRegions().

isDoubleBufferingEnabled()

markCompletelyClean(JComponent)

Mark a component completely clean.

markCompletelyDirty(JComponent)

Mark a component completely dirty.

paintDirtyRegions()

Paint all of the components that have been marked dirty.

removeInvalidComponent(JComponent)

Remove a component from the list of invalid components.

setCurrentManager(RepaintManager)

Set the RepaintManager that should be used for the calling thread.

setDoubleBufferingEnabled(boolean)

setDoubleBufferMaximumSize(Dimension)

Set the maximum double buffer size.

toString()

validateInvalidComponents()

Validate all of the components that have been marked invalid.

 public RepaintManager()

Create a new RepaintManager instance. You rarely call this constructor. directly. To get the default RepaintManager, use RepaintManager.currentManager(JComponent) (normally "this").

 public static RepaintManager currentManager(Component c)

Return the RepaintManager for the calling thread.

 public static RepaintManager currentManager(JComponent c)

Returns:

currentManager((Component)c)

 public static void setCurrentManager(RepaintManager aRepaintManager)

Set the RepaintManager that should be used for the calling thread. aRepaintManager will become the current RepaintManager for the calling thread's thread group.

 public synchronized void addInvalidComponent(JComponent invalidComponent)

Mark the component as in need of layout and queue a runnable for the event dispatching thread that will validate the components first isValidateRoot() ancestor.

See Also:

isValidateRoot, removeInvalidComponent

 public synchronized void removeInvalidComponent(JComponent component)

Remove a component from the list of invalid components.

See Also:

addInvalidComponent

 public synchronized void addDirtyRegion(JComponent c,
                                         int x,
                                         int y,
                                         int w,
                                         int h)

Add a component in the list of components that should be refreshed. If c already has a dirty region, the rectangle (x,y,w,h) will be unioned with the region that should be redrawn.

See Also:

repaint

 public Rectangle getDirtyRegion(JComponent aComponent)

Return the current dirty region for a component. Return an empty rectangle if the component is not dirty.

 public void markCompletelyDirty(JComponent aComponent)

Mark a component completely dirty. aComponent will be completely painted during the next paintDirtyRegions() call.

 public void markCompletelyClean(JComponent aComponent)

Mark a component completely clean. aComponent will not get painted during the next paintDirtyRegions() call

 public boolean isCompletelyDirty(JComponent aComponent)

Convenience that returns true if aComponent will be completely painted during the next paintDirtyRegions(). If computing dirty regions is expensive for your component, use this method and avoid computing dirty region if it return true.

 public void validateInvalidComponents()

Validate all of the components that have been marked invalid.

See Also:

addInvalidComponent

 public void paintDirtyRegions()

Paint all of the components that have been marked dirty.

See Also:

addDirtyRegion

 public synchronized String toString()

Overrides:

toString in class Object

 public Image getOffscreenBuffer(Component c,
                                 int proposedWidth,
                                 int proposedHeight)

Return the offscreen buffer that should be used as a double buffer with the component c By default there is a double buffer per RepaintManager. The buffer might be smaller than (proposedWidth,proposedHeight) This happens when the maximum double buffer size as been set for the receiving repaint manager.

 public void setDoubleBufferMaximumSize(Dimension d)

Set the maximum double buffer size.

 public Dimension getDoubleBufferMaximumSize()

 public void setDoubleBufferingEnabled(boolean aFlag)

 public boolean isDoubleBufferingEnabled()

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