RepaintManager Class Reference

List of all members.

Public Member Functions
	RepaintManager ()
void	addInvalidComponent (final JComponent invalidComponent)
	Method doesn't perform component invalidation.
void	removeInvalidComponent (final JComponent component)
void	validateInvalidComponents ()
void	addDirtyRegion (final JComponent c, final int x, final int y, final int w, final int h)
Rectangle	getDirtyRegion (final JComponent c)
void	markCompletelyDirty (final JComponent c)
void	markCompletelyClean (final JComponent c)
boolean	isCompletelyDirty (final JComponent c)
void	paintDirtyRegions ()
Image	getOffscreenBuffer (final Component c, final int proposedWidth, final int proposedHeight)
Image	getVolatileOffscreenBuffer (final Component c, final int proposedWidth, final int proposedHeight)
void	setDoubleBufferMaximumSize (final Dimension d)
Dimension	getDoubleBufferMaximumSize ()
void	setDoubleBufferingEnabled (final boolean isEnabled)
boolean	isDoubleBufferingEnabled ()
Static Public Member Functions
static RepaintManager	currentManager (final Component c)
static RepaintManager	currentManager (final JComponent c)
static void	setCurrentManager (final RepaintManager repaintManager)
Private Member Functions
void	scheduleProcessingEvent ()
Component	getValidationRoot (final Component c)
Map	prepareOptimizedDirtyRegions ()
boolean	mergeWithParent (final Component comp, final MultiRectArea compDirtyRegion)
boolean	mergeWithChildren (final Component comp, final MultiRectArea compDirtyRegion)
Static Private Member Functions
static void	fillImage (final Image image, final Color c, final int width, final int height)
Private Attributes
Set	invalidRoots = Collections.synchronizedSet(new HashSet())
Image	offscreenImage
VolatileImage	volatileOffscreenImage
Dimension	maximumSize
boolean	doubleBufferingEnabled = true
Map	dirtyRegions = new Hashtable()
Map	optimizedDirtyRegions = new HashMap()
int	numberOfScheduledPaintEvents
final Runnable	paintEvent
Static Private Attributes
static final Rectangle	COMPLETELY_DIRTY_RECT = new Rectangle(0, 0, Integer.MAX_VALUE, Integer.MAX_VALUE)
static RepaintManager	instance

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Constructor & Destructor Documentation

RepaintManager

(

)

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Member Function Documentation

static RepaintManager currentManager

(

final Component

c

)

[static]

static RepaintManager currentManager

(

final JComponent

c

)

[static]

static void setCurrentManager

(

final RepaintManager

repaintManager

)

[static]

void addInvalidComponent

(

final JComponent

invalidComponent

)

Method doesn't perform component invalidation.

It just adds component validation root to the list of roots waiting for validation and schedules it.

void removeInvalidComponent

(

final JComponent

component

)

void validateInvalidComponents

(

)

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

Rectangle getDirtyRegion

(

final JComponent

c

)

void markCompletelyDirty

(

final JComponent

c

)

void markCompletelyClean

(

final JComponent

c

)

boolean isCompletelyDirty

(

final JComponent

c

)

void paintDirtyRegions

(

)

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

Image getVolatileOffscreenBuffer	(	final Component	c,
		final int	proposedWidth,
		final int	proposedHeight
	)

void setDoubleBufferMaximumSize

(

final Dimension

d

)

Dimension getDoubleBufferMaximumSize

(

)

void setDoubleBufferingEnabled

(

final boolean

isEnabled

)

boolean isDoubleBufferingEnabled

(

)

void scheduleProcessingEvent

(

)

[private]

Component getValidationRoot

(

final Component

c

)

[private]

Map prepareOptimizedDirtyRegions

(

)

[private]

boolean mergeWithParent	(	final Component	comp,
		final MultiRectArea	compDirtyRegion
	)			[private]

boolean mergeWithChildren	(	final Component	comp,
		final MultiRectArea	compDirtyRegion
	)			[private]

static void fillImage	(	final Image	image,
		final Color	c,
		final int	width,
		final int	height
	)			[static, private]

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Member Data Documentation

Set invalidRoots = Collections.synchronizedSet(new HashSet()) [private]

Image offscreenImage [private]

VolatileImage volatileOffscreenImage [private]

Dimension maximumSize [private]

boolean doubleBufferingEnabled = true [private]

Map dirtyRegions = new Hashtable() [private]

Map optimizedDirtyRegions = new HashMap() [private]

int numberOfScheduledPaintEvents [private]

final Rectangle COMPLETELY_DIRTY_RECT = new Rectangle(0, 0, Integer.MAX_VALUE, Integer.MAX_VALUE) [static, private]

RepaintManager instance [static, private]

final Runnable paintEvent [private]

Initial value:

 new Runnable() {
        public void run() {
            boolean shouldPaint = false;
            synchronized(RepaintManager.this) {
                numberOfScheduledPaintEvents--;
                shouldPaint = numberOfScheduledPaintEvents == 0;
            }
            if (shouldPaint) {
                validateInvalidComponents();
                paintDirtyRegions();
            }
        }
    }