colormanager.java

jboss规则引擎

package org.drools.ide.editors;

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;

public class ColorManager {

    
    private final static ColorManager instance = new ColorManager();
    
    public static final RGB MULTI_LINE_COMMENT = new RGB(128, 0, 0);
    public static final RGB SINGLE_LINE_COMMENT = new RGB(128, 128, 0);
    public static final RGB KEYWORD= new RGB(150, 0, 0);
    public static final RGB TYPE= new RGB(0, 0, 128);
    public static final RGB STRING= new RGB(0, 128, 0); 
    public static final RGB DEFAULT= new RGB(0, 0, 0);
    public static final RGB JAVADOC_KEYWORD= new RGB(0, 128, 0);
    public static final RGB JAVADOC_TAG= new RGB(128, 128, 128);
    public static final RGB JAVADOC_LINK= new RGB(128, 128, 128);
    public static final RGB JAVADOC_DEFAULT= new RGB(0, 128, 128);    

	protected Map fColorTable = new HashMap(10);

	void dispose() {
		Iterator e = fColorTable.values().iterator();
		while (e.hasNext())
			 ((Color) e.next()).dispose();
	}
    
    public static ColorManager getInstance() {
        return instance;
    }
    
	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;
	}
}