/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.ajax4jsf.util;
import java.awt.Color;
import java.util.HashMap;
import java.util.Map;
import org.ajax4jsf.Messages;
/**
* @author shura (latest modification by $Author: alexsmirnov $)
* @version $Revision: 1.1.2.1 $ $Date: 2007/01/09 18:59:16 $
*/
public final class HtmlColor {
private static Map<String, Color> colorNames;
static {
// color names.
colorNames = new HashMap<String, Color>();
colorNames.put("black", new Color(0x000000));
colorNames.put("green", new Color(0x008000));
colorNames.put("silver", new Color(0xC0C0C0));
colorNames.put("lime", new Color(0x00FF00));
colorNames.put("gray", new Color(0x808080));
colorNames.put("olive", new Color(0x808000));
colorNames.put("white", new Color(0xFFFFFF));
colorNames.put("yellow", new Color(0xFFFF00));
colorNames.put("maroon", new Color(0x800000));
colorNames.put("navy", new Color(0x000080));
colorNames.put("red", new Color(0xFF0000));
colorNames.put("blue", new Color(0x0000FF));
colorNames.put("purple", new Color(0x800080));
colorNames.put("teal", new Color(0x008080));
colorNames.put("fuchsia", new Color(0xFF00FF));
colorNames.put("aqua", new Color(0x00FFFF));
colorNames.put("transparent", new Color(0xFF, 0xFF, 0xFF, 0x00));
}
private HtmlColor() {
}
/**
* Decode HTML-attribute style of color to {@link Color}
*
* @param color - color name or #RRGGBB string
* @return - color for this value.
*/
public static Color decode(String color) {
if (null == color) {
throw new IllegalArgumentException(Messages.getMessage(Messages.NULL_COLOR_PARAMETER_ERROR));
}
Color c = (Color) colorNames.get(color.trim().toLowerCase());
if (null == c) {
try {
c = Color.decode(color.trim());
} catch (NumberFormatException e) {
throw new IllegalArgumentException(Messages.getMessage(Messages.DECODE_COLOR_PARAMETER_ERROR, color,
e.getMessage()));
}
}
return c;
}
public static Integer integerValue(String color) {
return new Integer(decode(color).getRGB());
}
public static String encodeRGB(Color color) {
if (null == color) {
throw new IllegalArgumentException(Messages.getMessage(Messages.NULL_COLOR_PARAMETER_ERROR_2));
}
return "#" + Integer.toHexString(color.getRGB()).substring(2).toUpperCase();
}
}