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/*
* Copyright (c) 2008, 2013, 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 com.sun.scenario.effect;
import com.sun.javafx.geom.Rectangle;
import com.sun.javafx.geom.transform.BaseTransform;
/**
* An effect that allows for per-pixel adjustments of hue, saturation,
* brightness, and contrast.
*/
public class ColorAdjust extends CoreEffect {
private float hue;
private float saturation;
private float brightness;
private float contrast;
/**
* Constructs a new {@code ColorAdjust} effect with the default hue (0.0),
* saturation (0.0), brightness (0.0), and contrast (1.0),
* using the default input for source data.
* This is a shorthand equivalent to:
*
* new ColorAdjust(DefaultInput)
*
*/
public ColorAdjust() {
this(DefaultInput);
}
/**
* Constructs a new {@code ColorAdjust} effect with the default hue (0.0),
* saturation (0.0), brightness (0.0), and contrast (0.0).
*
* @param input the single input {@code Effect}
*/
public ColorAdjust(Effect input) {
super(input);
this.hue = 0f;
this.saturation = 0f;
this.brightness = 0f;
this.contrast = 0f;
updatePeerKey("ColorAdjust");
}
/**
* Returns the input for this {@code Effect}.
*
* @return the input for this {@code Effect}
*/
public final Effect getInput() {
return getInputs().get(0);
}
/**
* Sets the input for this {@code Effect} to a specific
* {@code Effect} or to the default input if {@code input} is
* {@code null}.
*
* @param input the input for this {@code Effect}
* @throws IllegalArgumentException if {@code input} is null
*/
public void setInput(Effect input) {
setInput(0, input);
}
/**
* Returns the hue adjustment.
*
* @return the hue adjustment
*/
public float getHue() {
return hue;
}
/**
* Sets the hue adjustment.
*
*
* @param hue the hue adjustment
* @throws IllegalArgumentException if {@code hue} is outside the
* allowable range
*/
public void setHue(float hue) {
if (hue < -1f || hue > 1f) {
throw new IllegalArgumentException("Hue must be in the range [-1, 1]");
}
float old = this.hue;
this.hue = hue;
}
/**
* Returns the saturation adjustment.
*
* @return the saturation adjustment
*/
public float getSaturation() {
return saturation;
}
/**
* Sets the saturation adjustment.
*
*
* @param saturation the saturation adjustment
* @throws IllegalArgumentException if {@code saturation} is outside the
* allowable range
*/
public void setSaturation(float saturation) {
if (saturation < -1f || saturation > 1f) {
throw new IllegalArgumentException("Saturation must be in the range [-1, 1]");
}
float old = this.saturation;
this.saturation = saturation;
}
/**
* Returns the brightness adjustment.
*
* @return the brightness adjustment
*/
public float getBrightness() {
return brightness;
}
/**
* Sets the brightness adjustment.
*
*
* @param brightness the brightness adjustment
* @throws IllegalArgumentException if {@code brightness} is outside the
* allowable range
*/
public void setBrightness(float brightness) {
if (brightness < -1f || brightness > 1f) {
throw new IllegalArgumentException("Brightness must be in the range [-1, 1]");
}
float old = this.brightness;
this.brightness = brightness;
}
/**
* Returns the contrast adjustment.
*
* @return the contrast adjustment
*/
public float getContrast() {
return contrast;
}
/**
* Sets the contrast adjustment.
*
*
* @param contrast the contrast adjustment
* @throws IllegalArgumentException if {@code contrast} is outside the
* allowable range
*/
public void setContrast(float contrast) {
if (contrast < -1f || contrast > 1f) {
throw new IllegalArgumentException("Contrast must be in the range [-1, 1]");
}
float old = this.contrast;
this.contrast = contrast;
}
@Override
protected Rectangle getInputClip(int inputIndex,
BaseTransform transform,
Rectangle outputClip)
{
// Trivially, this effect simply modifies the colors of the pixels
// of the input on a 1:1 basis so the input clip is the same as the
// output clip.
return outputClip;
}
@Override
public boolean reducesOpaquePixels() {
final Effect input = getInput();
return input != null && input.reducesOpaquePixels();
}
}