util.java

aglet的部分源码

package com.ibm.aglets.tahiti;

/*
 * @(#)Util.java
 * 
 * IBM Confidential-Restricted
 * 
 * OCO Source Materials
 * 
 * 03L7246 (c) Copyright IBM Corp. 1996, 1998
 * 
 * The source code for this program is not published or otherwise
 * divested of its trade secrets, irrespective of what has been
 * deposited with the U.S. Copyright Office.
 */

import java.awt.Container;
import java.awt.Component;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.Font;
import java.awt.Color;
import java.util.Vector;
import java.util.Enumeration;

import com.ibm.awb.misc.Resource;

class Util {
	static Font titleFont = null;
	static Font proportionalFont = null;
	static Font fixedFont = null;
	static Color background = null;

	private static Vector titles = new Vector();
	private static Vector proportionals = new Vector();
	private static Vector fixeds = new Vector();
	private static Vector backgrounds = new Vector();

	synchronized public static Color getBackground() {
		if (background == null) {
			Resource res = Resource.getResourceFor("tahiti");

			background = res.getColor("tahiti.background", null);
		} 
		return background;
	}
	synchronized public static Font getFixedFont() {
		if (fixedFont == null) {
			Resource res = Resource.getResourceFor("tahiti");

			fixedFont = res.getFont("tahiti.fixedFont", null);
		} 
		return fixedFont;
	}
	synchronized public static Font getProportionalFont() {
		if (proportionalFont == null) {
			Resource res = Resource.getResourceFor("tahiti");

			proportionalFont = res.getFont("tahiti.font", null);
		} 
		return proportionalFont;
	}
	synchronized public static Font getTitleFont() {
		if (titleFont == null) {
			Resource res = Resource.getResourceFor("tahiti");

			titleFont = res.getFont("tahiti.titleFont", null);
		} 
		return titleFont;
	}
	synchronized public static void reset() {
		titleFont = null;
		proportionalFont = null;
		fixedFont = null;
		background = null;
	}
	public static void setBackground(Component cmp) {
		backgrounds.addElement(cmp);
		cmp.setBackground(getBackground());
	}
	public static void setFixedFont(Component cmp) {
		if (fixeds.contains(cmp) == false) {
			fixeds.addElement(cmp);
		} 
		cmp.setFont(getFixedFont());
	}
	public static void setFont(Component cmp) {
		if (proportionals.contains(cmp) == false) {
			proportionals.addElement(cmp);
		} 
		cmp.setFont(getProportionalFont());
	}
	public static void setTitleFont(Component cmp) {
		if (titles.contains(cmp) == false) {
			titles.addElement(cmp);
		} 
		cmp.setFont(getTitleFont());
	}
	synchronized static public void update() {
		Enumeration e = titles.elements();
		Component c;

		while (e.hasMoreElements()) {
			c = (Component)e.nextElement();
			c.setFont(getTitleFont());
		} 

		e = proportionals.elements();
		while (e.hasMoreElements()) {
			c = (Component)e.nextElement();
			c.setFont(getProportionalFont());
		} 

		e = fixeds.elements();
		while (e.hasMoreElements()) {
			c = (Component)e.nextElement();
			c.setFont(getFixedFont());
		} 

		/*
		 * e = backgrounds.elements();
		 * while(e.hasMoreElements()) {
		 * c = (Component)e.nextElement();
		 * c.setBackground(getBackground());
		 * }
		 */
	}
}