ColorManager.java

/*******************************************************************************
 * Copyright (c) 2015 Pivotal, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Pivotal, Inc. and others - initial API and implementation
 *******************************************************************************/
package org.springframework.ide.eclipse.editor.support.util;

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

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

public class ColorManager {

	public static final RGB GREY = new RGB(128,128,128);
	public static final RGB CYAN = new RGB(0,128,128);

	private static ColorManager instance;
	protected Map<RGB,Color> fColorTable = new HashMap<RGB,Color>();

	public Color getColor(RGB rgb) {
		Color color = fColorTable.get(rgb);
		if (color == null) {
			color = new Color(Display.getCurrent(), rgb);
			fColorTable.put(rgb, color);
		}
		return color;
	}

	public static ColorManager getInstance() {
		if (instance==null) {
			instance = new ColorManager();
		}
		return instance;
	}
}