package net.sourceforge.phpdt.externaltools.internal.model;

/**********************************************************************
Copyright (c) 2000, 2002 IBM Corp.  All rights reserved.
This file is made available under the terms of the Common Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v10.html
**********************************************************************/

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Display;

/**
 * Generic color manager.
 */
public class ColorManager {	
	
	private static ColorManager fgColorManager;
	
	private ColorManager() {
	}
	
	public static ColorManager getDefault() {
		if (fgColorManager == null) {
			fgColorManager= new ColorManager();
		}
		return fgColorManager;
	}
	
	protected Map fColorTable= new HashMap(10);
	
	public Color getColor(RGB rgb) {
		Color color= (Color) fColorTable.get(rgb);
		if (color == null) {
			color= new Color(Display.getCurrent(), rgb);
			fColorTable.put(rgb, color);
		}
		return color;
	}
	
	public void dispose() {
		Iterator e= fColorTable.values().iterator();
		while (e.hasNext())
			((Color) e.next()).dispose();
	}
}