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/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package nextapp.echo.app;
import java.io.Serializable;
/**
* A representation of a 24-bit RGB color.
*/
public class Color
implements Serializable {
/** Serial Version UID. */
private static final long serialVersionUID = 20070101L;
/** The color black. */
public static final Color BLACK = new Color(0x00, 0x00, 0x00);
/** The color blue. */
public static final Color BLUE = new Color(0x00, 0x00, 0xff);
/** The color green. */
public static final Color GREEN = new Color(0x00, 0xff, 0x00);
/** The color cyan. */
public static final Color CYAN = new Color(0x00, 0xff, 0xff);
/** The color red. */
public static final Color RED = new Color(0xff, 0x00, 0x00);
/** The color magenta. */
public static final Color MAGENTA = new Color(0xff, 0x00, 0xff);
/** The color yellow. */
public static final Color YELLOW = new Color(0xff, 0xff, 0x00);
/** The color white. */
public static final Color WHITE = new Color(0xff, 0xff, 0xff);
/** The color dark gray. */
public static final Color DARKGRAY = new Color(0x7f, 0x7f, 0x7f);
/** The color light gray. */
public static final Color LIGHTGRAY = new Color(0xaf, 0xaf, 0xaf);
/** The color orange. */
public static final Color ORANGE = new Color(0xff, 0xaf, 0x00);
/** The color pink. */
public static final Color PINK = new Color(0xff, 0xaf, 0xaf);
/** The identifier for 'transparent'-color */
public static final Color TRANSPARENT = new Color(-1);
private int rgb;
/**
* Creates a new color from an integer value.
* The value should be of the for 0xRRGGBB.
*
* @param rgb an integer representation for a color
*/
public Color(int rgb) {
this.rgb = rgb;
}
/**
* Creates a new color with specified red, green, and blue values. Each
* value may range from 0 to 255.
*
* @param r the red component value
* @param g the green component value
* @param b the blue component value
*/
public Color(int r, int g, int b) {
this.rgb = ((r & 0xff) << 16) | ((g & 0xff) << 8) | b & 0xff;
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals(Object o) {
boolean equal;
if (this == o) {
equal = true;
} else if (o instanceof Color) {
Color that = (Color) o;
equal = this.rgb == that.rgb;
} else {
equal = false;
}
return equal;
}
/**
* Returns the blue component value of this color.
*
* @return the blue component value of this color, from 0 to 255
*/
public int getBlue() {
return rgb & 0xff;
}
/**
* Returns the green component value of this color.
*
* @return the green component value of this color, from 0 to 255
*/
public int getGreen() {
return (rgb >> 8) & 0xff;
}
/**
* Returns the red component value of this color.
*
* @return the red component value of this color, from 0 to 255
*/
public int getRed() {
return rgb >> 16;
}
/**
* Returns the color as an RGB value.
*
* @return the color as an RGB value
*/
public int getRgb() {
return rgb;
}
/**
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return getRgb();
}
/**
* @see java.lang.Object#toString()
*/
public String toString() {
return getClass().getName() + " [r=" + getRed() + ",g=" + getGreen() + ",b=" + getBlue() + "]";
}
}
