GWT color class : Utility « GWT « Java






GWT color class

    

/*
 * Copyright 2006 Robert Hanson <iamroberthanson AT gmail.com>
 * 
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gwtwidgets.client.style;

/**
 * This class is under consideration for removal,
 * if you have an opion please comment on http://gwtwidgets.blogspot.com.
 */
public class Color
{
    public final static Color WHITE = new Color(255, 255, 255);
    public final static Color LIGHT_GRAY = new Color(192, 192, 192);
    public final static Color GRAY = new Color(128, 128, 128);
    public final static Color DARK_GRAY = new Color(64, 64, 64);
    public final static Color BLACK = new Color(0, 0, 0);
    public final static Color RED = new Color(255, 0, 0);
    public final static Color PINK = new Color(255, 175, 175);
    public final static Color ORANGE = new Color(255, 200, 0);
    public final static Color YELLOW = new Color(255, 255, 0);
    public final static Color GREEN = new Color(0, 255, 0);
    public final static Color MAGENTA = new Color(255, 0, 255);
    public final static Color CYAN = new Color(0, 255, 255);
    public final static Color BLUE = new Color(0, 0, 255);
    public static final Color NONE = new Color("");
    
    private int r, g, b;
    
    // only for special cases, like no color, or maybe named colors
    private String colorText = null;

    private Color (String colorText) {
        this.colorText = colorText;
    }

    public Color (int r, int g, int b)
    {
        this.r = r;
        this.g = g;
        this.b = b;
    }

    public int getRed ()
    {
        return r;
    }

    public int getGreen ()
    {
        return g;
    }

    public int getBlue ()
    {
        return b;
    }

    public String getHexValue ()
    {
        if (colorText != null) {
            return colorText;
        }

        return "#"
            + pad(Integer.toHexString(r))
            + pad(Integer.toHexString(g))
            + pad(Integer.toHexString(b));
    }

    private String pad (String in)
    {
        if (in.length() == 0) {
            return "00";
        }
        if (in.length() == 1) {
            return "0" + in;
        }
        return in;
    }

    public String toString ()
    {
        if (colorText != null) {
            return colorText;
        }
        return "red=" + r + ", green=" + g + ", blue=" + b;
    }
}


           
         
    
    
    
  








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