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/*
 * Copyright (c) 2010, 2017, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

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 high-level effect that makes brighter portions of the input image
 * appear to glow, based on a configurable threshold.
 *
 * 

* Example: *

{@code
 * Bloom bloom = new Bloom();
 * bloom.setThreshold(0.1);
 *
 * Rectangle rect = new Rectangle();
 * rect.setX(10);
 * rect.setY(10);
 * rect.setWidth(160);
 * rect.setHeight(80);
 * rect.setFill(Color.DARKSLATEBLUE);
 *
 * Text text = new Text();
 * text.setText("Bloom!");
 * text.setFill(Color.ALICEBLUE);
 * text.setFont(Font.font(null, FontWeight.BOLD, 40));
 * text.setX(25);
 * text.setY(65);
 * text.setEffect(bloom);
 * }
* *

The code above produces the following:

*

* The visual effect of applying bloom on text *

* @since JavaFX 2.0 */ public class Bloom extends Effect { /** * Creates a new instance of Bloom with default parameters. */ public Bloom() {} /** * Creates a new instance of Bloom with the specified threshold. * @param threshold the threshold value for the bloom effect * @since JavaFX 2.1 */ public Bloom(double threshold) { setThreshold(threshold); } @Override com.sun.scenario.effect.Bloom createPeer() { return new com.sun.scenario.effect.Bloom(); }; /** * 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 input; public final void setInput(Effect value) { inputProperty().set(value); } public final Effect getInput() { return input == null ? null : input.get(); } public final ObjectProperty inputProperty() { if (input == null) { input = new EffectInputProperty("input"); } return input; } @Override boolean checkChainContains(Effect e) { Effect localInput = getInput(); if (localInput == null) return false; if (localInput == e) return true; return localInput.checkChainContains(e); } /** * The threshold value controls the minimum luminosity value of * the pixels that will be made to glow. *
     *       Min: 0.0
     *       Max: 1.0
     *   Default: 0.3
     *  Identity: n/a
     * 
* @defaultValue 0.3 */ private DoubleProperty threshold; public final void setThreshold(double value) { thresholdProperty().set(value); } public final double getThreshold() { return threshold == null ? 0.3 : threshold.get(); } public final DoubleProperty thresholdProperty() { if (threshold == null) { threshold = new DoublePropertyBase(0.3) { @Override public void invalidated() { markDirty(EffectDirtyBits.EFFECT_DIRTY); } @Override public Object getBean() { return Bloom.this; } @Override public String getName() { return "threshold"; } }; } return threshold; } @Override void update() { Effect localInput = getInput(); if (localInput != null) { localInput.sync(); } com.sun.scenario.effect.Bloom peer = (com.sun.scenario.effect.Bloom) getPeer(); peer.setInput(localInput == null ? null : localInput.getPeer()); peer.setThreshold((float)Utils.clamp(0, getThreshold(), 1)); } @Override BaseBounds getBounds(BaseBounds bounds, BaseTransform tx, Node node, BoundsAccessor boundsAccessor) { return getInputBounds(bounds, tx,node, boundsAccessor, getInput()); } @Override Effect copy() { Bloom b = new Bloom(this.getThreshold()); b.setInput(this.getInput()); return b; } }




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