Adds applet to the list of Components that need to be repainted.

  Adds applet to the list of Components that
need to be repainted.
Parameters:
- applet - Applet to repaint, null results in nothing happening.
- x - X coordinate of the region to repaint
- y - Y coordinate of the region to repaint
- w - Width of the region to repaint
- h - Height of the region to repaint
Since: 1.6
See Also: JApplet.repaint(long, int, int, int, int),

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

  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.
Parameters:
- c - Component to repaint, null results in nothing happening.
- x - X coordinate of the region to repaint
- y - Y coordinate of the region to repaint
- w - Width of the region to repaint
- h - Height of the region to repaint
See Also: JComponent.repaint(long, int, int, int, int),

  Adds window to the list of Components that need to be repainted.

  Adds window to the list of Components that
need to be repainted.
Parameters:
- window - Window to repaint, null results in nothing happening.
- x - X coordinate of the region to repaint
- y - Y coordinate of the region to repaint
- w - Width of the region to repaint
- h - Height of the region to repaint
Since: 1.6
See Also: JFrame.repaint(long, int, int, int, int), JWindow.repaint(long, int, int, int, int), JDialog.repaint(long, int, int, int, int),

  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.

  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: JComponent.isValidateRoot(), RepaintManager.removeInvalidComponent(javax.swing.JComponent),

  Invoked prior to any paint/copyArea method calls.

  Invoked prior to any paint/copyArea method calls. This will
be followed by an invocation of endPaint.
WARNING: Callers of this method need to wrap the call
in a try/finally, otherwise if an exception is thrown
during the course of painting the RepaintManager may
be left in a state in which the screen is not updated, eg:

 repaintManager.beginPaint();
 try {
   repaintManager.paint(...);
 } finally {
   repaintManager.endPaint();
 }
 

  Does a copy area on the specified region.

  Does a copy area on the specified region.
Parameters:
- clip - Whether or not the copyArea needs to be clipped to the Component's bounds.

  Returns the RepaintManager for the specified AppContext.

  Returns the RepaintManager for the specified AppContext. If
a RepaintManager has not been created for the specified
AppContext this will return null.

  Return the RepaintManager for the calling thread given a Component.

  Return the RepaintManager for the calling thread given a Component.
Returns: the RepaintManager object
Parameters:
- c - a Component -- unused in the default implementation, but could be used by an overridden version to return a different RepaintManager depending on the Component

  Return the RepaintManager for the calling thread given a JComponent.

  Return the RepaintManager for the calling thread given a JComponent.

Note: This method exists for backward binary compatibility with earlier versions of the Swing library. It simply returns the result returned by RepaintManager.currentManager(Component).
Returns: the RepaintManager object
Parameters:
- c - a JComponent -- unused

  Invoked when the doubleBuffered or useTrueDoubleBuffering properties of a JRootPane change.

  Invoked when the doubleBuffered or useTrueDoubleBuffering
properties of a JRootPane change. This may come in on any thread.

Invoked after beginPaint has been invoked.

  Return the current dirty region for a component.

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

  Returns the maximum double buffer size.

  Returns the maximum double buffer size.
Returns: a Dimension object representing the maximum size

  Return the offscreen buffer that should be used as a double buffer with the component c.

  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.

  Return a volatile offscreen buffer that should be used as a double buffer with the specified component c.

  Return a volatile offscreen buffer that should be used as a
double buffer with the specified component c.
The image returned will be an instance of VolatileImage, or null
if a VolatileImage object could not be instantiated.
This buffer might be smaller than (proposedWidth,proposedHeight).
This happens when the maximum double buffer size has been set for this
repaint manager.
Since: 1.4
See Also: VolatileImage,

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

  Convenience method 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.

  Returns true if this RepaintManager is double buffered.

  Returns true if this RepaintManager is double buffered.
The default value for this property may vary from platform
to platform. On platforms where native double buffering
is supported in the AWT, the default value will be false
to avoid unnecessary buffering in Swing.
On platforms where native double buffering is not supported,
the default value will be true.
Returns: true if this object is double buffered

  Mark a component completely clean.

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

  Mark a component completely dirty.

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

  Paints a region of a component

  Paints a region of a component
Parameters:
- paintingComponent - Component to paint
- bufferComponent - Component to obtain buffer for
- g - Graphics to paint to
- x - X-coordinate
- y - Y-coordinate
- w - Width
- h - Height

  Paint all of the components that have been marked dirty.

  Paint all of the components that have been marked dirty.
See Also: RepaintManager.addDirtyRegion(javax.swing.JComponent, int, int, int, int),

  Remove a component from the list of invalid components.

  Remove a component from the list of invalid components.
See Also: RepaintManager.addInvalidComponent(javax.swing.JComponent),

  This resets the double buffer.

  This resets the double buffer. Actually, it marks the double buffer
as invalid, the double buffer will then be recreated on the next
invocation of getOffscreenBuffer.

This resets the volatile double buffer.

  This is invoked from SystemEventQueueUtilities.

  This is invoked from SystemEventQueueUtilities. It's needed
for backward compatability in so far as RepaintManager would previously
not see paint requests for top levels, so, we have to make sure
a subclass correctly paints any dirty top levels.

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

  Set the RepaintManager that should be used for the calling
thread. aRepaintManager will become the current RepaintManager
for the calling thread's thread group.
Parameters:
- aRepaintManager - the RepaintManager object to use

  Enables or disables double buffering in this RepaintManager.

  Enables or disables double buffering in this RepaintManager.
CAUTION: The default value for this property is set for optimal
paint performance on the given platform and it is not recommended
that programs modify this property directly.
Parameters:
- aFlag - true to activate double buffering
See Also: RepaintManager.isDoubleBufferingEnabled(),

Set the maximum double buffer size.

  Sets the PaintManager that is used to handle all double buffered painting.

  Sets the PaintManager that is used to handle all
double buffered painting.
Parameters:
- paintManager - The PaintManager to use. Passing in null indicates the fallback PaintManager should be used.

  If possible this will show a previously rendered portion of a Component.

  If possible this will show a previously rendered portion of a Component. If successful, this will return true, otherwise false.

WARNING: This method is invoked from the native toolkit thread, be very careful as to what methods this invokes!

  Returns a string that displays and identifies this object's properties.

  Returns a string that displays and identifies this
object's properties.
Returns: a String representation of this object

Returns true if we should use the Image returned from getVolatileOffscreenBuffer to do double buffering.

  Validate all of the components that have been marked invalid.

  Validate all of the components that have been marked invalid.
See Also: RepaintManager.addInvalidComponent(javax.swing.JComponent),