Here you can find the source of prepareGraphics(Graphics g)
public static Graphics2D prepareGraphics(Graphics g)
//package com.java2s; /*/*from w w w . jav a 2 s . c om*/ * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.RenderingHints; import java.awt.Toolkit; import java.util.Map; public class Main { public static Graphics2D prepareGraphics(Graphics g) { Graphics2D g2 = (Graphics2D) g; Map rhints = (Map) (Toolkit.getDefaultToolkit().getDesktopProperty("awt.font.desktophints")); //NOI18N if (rhints == null && Boolean.getBoolean("swing.aatext")) { //NOI18N g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON); } else if (rhints != null) { g2.addRenderingHints(rhints); } return g2; } }