Edit C:\Program Files\Java\jdk1.8.0_121\javafx\scene\effect\GaussianBlur.java

/*
 * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package javafx.scene.effect;

import javafx.beans.property.DoubleProperty;
import javafx.beans.property.DoublePropertyBase;
import javafx.beans.property.ObjectProperty;
import javafx.scene.Node;

import com.sun.javafx.util.Utils;
import com.sun.javafx.effect.EffectDirtyBits;
import com.sun.javafx.geom.BaseBounds;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.javafx.scene.BoundsAccessor;

/**
 * A blur effect using a Gaussian convolution kernel, with a configurable
 * radius.
 *
 * 
 * Example:
 * <pre><code>
 * Text text = new Text();
 * text.setText("Blurry Text!");
 * text.setFill(Color.web("0x3b596d"));
 * text.setFont(Font.font(null, FontWeight.BOLD, 50));
 * text.setX(10);
 * text.setY(50);
 *
 * text.setEffect(new GaussianBlur());
 * </pre></code>
 * 
 * The code above produces the following:
 * 
 * 
 * <img src="doc-files/gaussianblur.png"/>
 * 
 * @since JavaFX 2.0
 */
public class GaussianBlur extends Effect {
 /**
 * Creates a new instance of GaussianBlur with default parameters.
 */
 public GaussianBlur() {}

/**
     * Creates a new instance of GaussianBlur with the specified radius.
     * @param radius the radius of the blur kernel
     * @since JavaFX 2.1
     */
    public GaussianBlur(double radius) {
        setRadius(radius);
    }

@Override
 com.sun.scenario.effect.GaussianBlur impl_createImpl() {
 return new com.sun.scenario.effect.GaussianBlur();
 };
 /**
 * The input for this {@code Effect}.
 * If set to {@code null}, or left unspecified, a graphical image of
 * the {@code Node} to which the {@code Effect} is attached will be
 * used as the input.
 * @defaultValue null
 */
 private ObjectProperty<Effect> input;

public final void setInput(Effect value) {
        inputProperty().set(value);
    }

public final Effect getInput() {
        return input == null ? null : input.get();
    }

public final ObjectProperty<Effect> inputProperty() {
 if (input == null) {
 input = new EffectInputProperty("input");
 }
 return input;
 }

@Override
    boolean impl_checkChainContains(Effect e) {
        Effect localInput = getInput();
        if (localInput == null)
            return false;
        if (localInput == e)
            return true;
        return localInput.impl_checkChainContains(e);
    }

/**
 * The radius of the blur kernel.
 * <pre>
 * Min: 0.0
 * Max: 63.0
 * Default: 10.0
 * Identity: 0.0
 * </pre>
 * @defaultValue 10.0
 */
 private DoubleProperty radius;

public final void setRadius(double value) {
        radiusProperty().set(value);
    }

public final double getRadius() {
        return radius == null ? 10 : radius.get();
    }

public final DoubleProperty radiusProperty() {
        if (radius == null) {
            radius = new DoublePropertyBase(10) {

@Override
                public void invalidated() {
                    markDirty(EffectDirtyBits.EFFECT_DIRTY);
                    effectBoundsChanged();
                }

@Override
                public Object getBean() {
                    return GaussianBlur.this;
                }

@Override
                public String getName() {
                    return "radius";
                }
            };
        }
        return radius;
    }

private float getClampedRadius() {
        return (float) Utils.clamp(0, getRadius(), 63);
    }

@Override
    void impl_update() {
        Effect localInput = getInput();
        if (localInput != null) {
            localInput.impl_sync();
        }

com.sun.scenario.effect.GaussianBlur peer =
                (com.sun.scenario.effect.GaussianBlur) impl_getImpl();
        peer.setRadius(getClampedRadius());
        peer.setInput(localInput == null ? null : localInput.impl_getImpl());
    }

/**
     * @treatAsPrivate implementation detail
     * @deprecated This is an internal API that is not intended for use and will be removed in the next version
     */
    @Deprecated
    @Override
    public BaseBounds impl_getBounds(BaseBounds bounds,
                                     BaseTransform tx,
                                     Node node,
                                     BoundsAccessor boundsAccessor) {
        bounds = getInputBounds(bounds,
                                BaseTransform.IDENTITY_TRANSFORM,
                                node, boundsAccessor,
                                getInput());
        float r = getClampedRadius();
        bounds = bounds.deriveWithPadding(r, r, 0);
        return transformBounds(tx, bounds);
    }

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