Class ConvolveWidget

java.lang.Object

org.netbeans.api.visual.widget.Widget

org.netbeans.api.visual.widget.ConvolveWidget

All Implemented Interfaces:

Accessible, org.openide.util.Lookup.Provider

public class ConvolveWidget
extends Widget

The widget which applies a convolve filter to a graphics rendered by the children.

Children are painted to an offscreen buffer which is later painted with a convolve filter applied to it.

Because of the offscreen buffer, be careful about the size of the widget. The buffer stays allocated even after the painting and it is also expanding only (when required). You can clear the buffer using clearCache method.

Nested Class Summary

Nested classes/interfaces inherited from class org.netbeans.api.visual.widget.Widget

Widget.Dependency

Constructor Summary

Constructors

Constructor	Description
ConvolveWidget(Scene scene, ConvolveOp convolveOp)	Creates a convolve widget with a specified ColvolveOp.

Method Summary

Modifier and Type	Method	Description
void	clearCache()	Clears an offscreen buffer.
ConvolveOp	getConvolveOp()	Returns a convolve operation.
protected void	paintChildren()	Paints the children into the offscreen buffer and then the buffer is rendered regularly using the convolve operation.
void	setConvolveOp(ConvolveOp convolveOp)	Sets a convolve operation.

Methods inherited from class org.netbeans.api.visual.widget.Widget

addChild, addChild, addChild, addChild, addChildren, addDependency, bringToBack, bringToFront, calculateClientArea, convertLocalToScene, convertLocalToScene, convertSceneToLocal, convertSceneToLocal, createActions, equals, getAccessibleContext, getActions, getActions, getBackground, getBorder, getBounds, getChildConstraint, getChildren, getClientArea, getCursor, getCursorAt, getDependencies, getFont, getForeground, getGraphics, getLayout, getLocation, getLookup, getMaximumSize, getMinimumSize, getParentWidget, getPreferredBounds, getPreferredLocation, getPreferredSize, getResourceTable, getScene, getState, getToolTipText, hashCode, isCheckClipping, isEnabled, isHitAt, isOpaque, isPreferredBoundsSet, isRepaintRequiredForRevalidating, isValidated, isVisible, notifyAdded, notifyBackgroundChanged, notifyFontChanged, notifyForegroundChanged, notifyRemoved, notifyStateChanged, paint, paintBackground, paintBorder, paintWidget, removeChild, removeChildren, removeChildren, removeDependency, removeFromParent, repaint, resolveBounds, revalidate, revalidate, setAccessibleContext, setBackground, setBackgroundFromResource, setBorder, setBorder, setCheckClipping, setChildConstraint, setCursor, setEnabled, setFont, setFontFromResource, setForeground, setForegroundFromResource, setLayout, setMaximumSize, setMinimumSize, setOpaque, setPreferredBounds, setPreferredLocation, setPreferredSize, setResourceTable, setState, setToolTipText, setVisible, updateResources

Methods inherited from class java.lang.Object

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

Constructor Details

ConvolveWidget

public ConvolveWidget(Scene scene,
 ConvolveOp convolveOp)

Creates a convolve widget with a specified ColvolveOp.

Parameters:

scene - the scene

convolveOp - the convolve operation

Method Details

getConvolveOp

public ConvolveOp getConvolveOp()

Returns a convolve operation.

Returns:

the convolve operation

setConvolveOp

public void setConvolveOp(ConvolveOp convolveOp)

Sets a convolve operation.

Parameters:

convolveOp - the convolve operation

clearCache

public void clearCache()

Clears an offscreen buffer.

paintChildren

protected void paintChildren()

Paints the children into the offscreen buffer and then the buffer is rendered regularly using the convolve operation.

Overrides:

paintChildren in class Widget